Gravel Material Research Articles

Mesoscopic hysteretic model and parameter study on cemented sand and gravel material

According to the hysteresis loop characteristics of the cemented sand and gravel (CSG) material under an equal amplitude cyclic loading test, taking into account the influence of cycle times and plastic residual strain, a plastic mesoscopic hysteretic model of the CSG material was established based on the theoretical Preisach-Mayergoyz model. The sensitivity of the mechanical characteristics corresponding to the shape parameters, the fatigue life (frequency), the total number of hysteretic mesoscopic elastic units (HMEU), and the size of the load step in the model was analyzed. The results showed that the shape parameters mainly affect the form of the hysteresis loop curves in the loading and unloading sections, the total amount of HUEU affects the accuracy of expressing the mechanical properties of CSG materials, and the load step affects the fitting accuracy of the hysteresis loop curves. Based on the parameter analysis, the theoretical range of the mesoscopic parameters suitable for the mesoscopic hysteretic model of CSG are shown that, the shape parameter ξ is 1.2–3.0 and η is less than 0.3, the total number of HMEU is 500–10,000, the load step should not be significant when its value is greater than 0.08 MPa. The mesoscopic hysteretic model of CSG can also predict the fatigue life of CSG materials under constant amplitude cyclic loading. The research results can provide a theoretical basis for the dynamic characteristics and fatigue failure analysis of CSG materials.

Improving Gravel Material Specifications for Unpaved Roads: Australian Case Study

Improving Gravel Material Specifications for Unpaved Roads: Australian Case Study

Occlusion-aware particle size distribution detection of gravel material based on the improved Bilayer Convolutional Network

Particle size distribution (PSD) detection is an important part of the construction process, which may delay subsequent construction if it takes too much time. Image-based methods have been proposed for effective and inexpensive PSD detection based on digital image processing (DIP) or deep learning. However, current image-based PSD detection methods mostly ignore the occluded regions of gravel particles, which causes errors in the detection process. Hence, this study proposed a novel occlusion-aware PSD detection method, which adapted an amodal instance segmentation model, improved Bilayer Convolutional Network (BCNet) with an Optimized Feature Pyramid Network (FPN), and a backbone embedding with global context network (GCNet) module, for occlusion-aware particle image segmentation. The improved BCNet has achieved 6.7% AP50 and 6% AP75 improvement compared to the original BCNet. For the results of PSD analysis, the maximum and average absolute errors of the mass fraction of various particle size intervals were 3.38% and 1.27%, respectively, less than 4.65% and 2.05% of the way only considering visible regions of particles, which indicates the proposed method can reduce the error of image-based PSD detection method only considering visible regions of particles. Furthermore, the detection time of the proposed method is less than 120 s which is more rapid than mechanical sieving.

Using walnut shells as low-cost adsorbent materials in an anaerobic filter medium of a De-centralized wastewater treatment system (DEWATS)

The flow of unprocessed sewage through municipal sewers is a great source of water contamination. This study aims to observe the pollutants removal efficiencies of walnut shells as an efficient low-cost adsorbent material compared to gravel materials as an anaerobic filter medium. Two models of the De-Centralized Wastewater Treatment System (DEWATS) were constructed. The wastewater flowing from toilets and handwashing places was connected to anaerobic filters filled with walnut shells and gravel. The efficiency of both filter media in the removal of biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), total dissolved solids (TDS), nitrate (NO3), and phosphate (PO43), pH and temperature were observed at the influent of the settler tank and then at the effluent of the collection tank (CT). Temperature and pH were within the acceptable limit of wastewater discharge. The results also indicated that the walnut shells filter media was more efficient at removing organic pollutants (TSS 94%, BOD5 88%, COD 85%, Nitrate 57%, phosphate 46%, and TDS 29%) than the gravel (TSS 81%, BOD5 82%, COD 84%, Nitrate 35%, phosphate 38%, and TDS 26%) at the successive stages. The average removal efficiency of the walnut shell was 88% while in the gravel case, it was 83%. The removal efficiency of walnut shell filters was extensively better over the complete experiment compared to gravel filters for the removal of pollutants, representing the high sorption capability of the walnut shell material. The results of this study show that the walnut shells may be a very useful substitute for other conventional fillers for anaerobic treatment in the anaerobic filter of DEWATS.

EFFECT OF GRAVEL PARTICLE SIZE ON THE RESHAPING OF DYNAMIC REVETMENTS

Gravel beaches are prevalent natural features on many coastlines and play a vital role in shore protection, often inspiring protection structures (Bayle et al., 2020) and nature-based solutions. Dynamic revetments are constructed features, designed to mimic gravel beaches, dissipating wave energy and preventing or limiting erosion. Compared to sand beaches, gravel revetments dissipate incident wave energy and dampen backwash intensity by percolating through the relatively large pore volume space (Komar, 2007). During storm events, gravel particles move up the beach, accreting at the crest. This predominately onshore-directed transport of gravel material differs from the storm-driven morphodynamic behaviour of sandy beaches, which tend to exhibit higher rates of offshore-directed transport (Komar, 2007). Ahrens’ Theorem continues to be used as a design volume estimator for dynamic revetments (Bayle et al., 2020). This primary objective of this study is to investigate how dynamic revetments with different D50 reshape under various wave conditions.

Technical, economical, and socio-environmental analysis of forest road maintenance using the HDM-4 software

As they do not have a sealant coating, forest roads are more susceptible to degradation and traffic obstruction, requiring better construction and maintenance attention. This study aimed to assess the performance of maintenance carried out on unpaved roads in technical, economic, and socio-environmental scopes by application of the Highway Development & Management Model (HDM-4) and to show the best project proposals. The analyses consisted of inputting the HDM-4 with the characteristic data of roads, of and the maintenance to be adopted and the type of used vehicle. The association of this information made it possible to envision scenarios that consider either the replacement or non-replacement of gravel materials on the roads as a methodology. For management without gravel replacement, the most effective scenario was that of roads with gravel under the bed, located in a tropical climate, with flat features and 90 kilometers in length, initial thickness of 175 mm of gravel, high volume of traffic, and subject high-level maintenance at 30-day intervals. For the management with gravel replacement, the ideal scenario was that of roads with gravel under the bed, located in a temperate climate, on rolling terrain and 30 kilometers long, initial thickness of 175 mm of gravel, high traffic intensity, and subjected to high-level maintenance every 30 days. High-level maintenance was the best option for maximizing the quality of the roads and providing the best total net benefit, lowest gas emission rates, least fuel, and tire consumption, and adequate pavement condition by the end of the project.

Design and validation of a new temperature-controlled large-scale direct shear apparatus

To mitigate the size effect on the shear mechanical properties of geotechnical materials and address the limitations of conventional direct shear apparatus, we have designed a new temperature-controlled large-scale direct shear apparatus (TXTZJ-500) based on the existing ones. The innovative apparatus can be used to test the direct shear mechanical behaviors of different materials under freezing or high temperatures. By increasing the size of the shear box, this new direct shear apparatus significantly minimizes the impact of the size effect on the sample failure surface. Consequently, it represents the stress state and provides precise shear mechanical properties of the sample accurately. Subsequently, we conducted a series of direct shear tests on sandy soil and graded gravel materials at different temperatures and axial stress levels using the TXTZJ-500 apparatus. The obtained test results indicate that the TXTZJ-500 effectively replicates the strength and deformation characteristics of sandy soil, frozen soil, and graded gravel. The test data of the developed apparatus are stable and reliable, and can provide a test reference for assessing the mechanical properties of geotechnical materials.

Mechanical Characteristics of Distributed Electric Wheel Loader in Shoveling Condition

Multi-bridge centralized drive wheel loaders can produce parasitic power to waste energy and aggravate tire wear. Distributed Electric Wheel Loader(DEWL) is a new structure with two drive motors that can be controlled independently or in concert. Hence, this study investigates the mechanical characteristics of DEWL in its shoveling condition. Firstly, for the DEWL, dynamic models are established including running and shoveling conditions, on the basis of automobile theory. Secondly, a simplified structural model of DEWL is used to construct the mechanical equations, and the theoretical derivation is utilized to analyze the forces on wheels during different driving modes of running and shoveling conditions. Finally, the free shoveling of dry sands and gravel materials is tested by a ZL50GV-EV DEWL, and the drive forces of three drive modes on horizontal concrete pavement are tested. The results show that the parasitic power is generated when the driving motor has a larger speed than that of the other motor, which is caused by the movement of the loader's center of gravity. The driving torques generated by the motors are basically the same when the DEWL is in front-drive mode and rear-drive mode at the setting speed of 600rpm, whether it is running forward or backward, with a torque fluctuation of 0.16%-1.28% and a power fluctuation of 0.02%-1.29%. The DEWL consumes more power in dual-drive mode than in single drive if it is controlled in speed-target mode.

Effect of material particle size on the permeability characteristics and sediment retention performance of cascade permeable dam

The permeable dam is a dam constructed with gravel or other material to control the sediment in rivers or channels. Experiments were conducted to study the effects of the flow rate, sediment concentration, and dam material size D on the sediment retention and permeability characteristics of the cascade permeable dams. The results show that when the water level H1t before the first dam reaches the specified failure height, the total water volume for D = 1–2 mm is inversely proportional to the sediment concentration and basically increases as the flow rate increases. The sediment mass retained by the first dam accounts for 44–56% (D = 1–2 mm) and 26–35% (D = 3–5 mm) of the total sediment mass retained by the cascade dams, and the former mainly realizes the sediment retention through the retention of the first dam, while the latter through the material retention and sediment deposition between two adjacent dams. The average permeability coefficient k of the first dam was observed to decrease by 39–62% (D = 3–5 mm) and 46–64 (D = 1–2 mm) due to the sediment clogging. The decrease rate of k (D = 1–2 mm) or decrease amplitude of k (D = 3–5 mm) are positively correlated with the sediment concentration. Under all working conditions, H1t rises rapidly and then steadily, and the rising rate for D = 1–2 mm is proportional to the sediment concentration, and increases first and then decreases as the flow rate increases. The prediction formula of H1t is proposed based on the experimental data. The research results are of reference value for the design and study of permeable dams in the future.

Особености на материалите, участващи в кално-каменните порои в Кресненското дефиле, ЮЗ България

Debris flow events periodically occur in the northern part of the Kresna Gorge, SW Bulgaria. Most of them damage the infrastructure and block the traffic along the National Route E79. In the present paper, we analyze the physical properties of the materials involved in debris flow transportation and sedimentation. Samples taken from events in 2017 and 2021 were studied. Plasticity properties were found in the materials deposited in and near the alluvial fan. The plasticity index is up to 23.4% according to BDS EN ISO 17892-12. The particle size composition of the samples shows a predominance of gravelly sand and sandy gravel materials according to the BDS EN ISO 14688-2 standard. The samples taken from the transport zone are defined as gravel and less commonly as sandy gravel. The sand content in them is lower – from 5.3 to 48.5% (average 21.5%) than in the samples taken from the source area and accumulation zone, where the average values are 43.8% and 47.4%, respectively. In the accumulation zone, the quantity of sand content also increases – the average value is 14.1%, while in the source and transport zones it is 6.6% and 8.2%, respectively. The debris flows materials are polydisperse, with dominantly angular and subangular roundness. The coarser grains are accumulated within the stream channel. The finer grains (silty and clayey) are more common in the periphery of the accumulation zone (alluvial fan).

Transforming Construction and Demolition Waste into Soft-Soil Treatment for Paving Design

AbstractConstruction and demolition wastes (CDW) are a concern in urban areas, in addition, it is well understood that soft soils are inappropriate for paving designs. Therefore, this paper presents an alternative solution combining CDW and a soft silty soil, aiming to overcome the soft soil drawbacks by repeated loadings. For this purpose, a laboratory study was developed, comprising both resilient modulus (MR) and unconfined compressive strength (UCS) tests over soil and soil-CDW compacted blends, to evaluate the mechanical properties of the proposed stabilization. Also, three compaction efforts (standard, intermediate, and modified) and a curing time of up to 90 days were used. The UCS of blends was also measured with the identical specimens with which the resilience tests were carried out. The results indicated that incorporating CDW (size sand and gravel materials) into the soil improves the qu and MR for all compaction energies, and the Resilient Modulus test affects the UCS of all blends, increasing its effect with the decrease in compaction effort. Repeated loads caused a decrease in the specimen's voids whereby the density increased and, therefore, qu. Finally, the results conclude that the compacted mixtures in the intermediate effort and 40–60% CDW by weight are potentially applicable in pavements compared to the traditional soil–cement base/subbase.

The influence of particle morphology on the long-term strength of sandy soil under freeze-thaw cycles

Freeze-thaw weathering can fragment sand and gravel materials, altering their mechanical properties. This study aims to simulate the effects of freeze-thaw weathering by subjecting sand and gravel materials to cycling tests. The tests were conducted in the monsoonal freeze zone, and the long-term strength and morphological indices of the sub-materials were measured after 0, 5, 10, 50, and 100 freeze-thaw cycles (FTCs) using a spherical template indenter and a particle image analyzer. The morphological indicators that were selected for this study – equivalent diameter and fractal dimension showed a strong correlation with long-term strength. The coefficients of determination (R) were 0.685 and 0.597, respectively. However, the roundness, aspect ratio, and ellipticity of the materials showed a weak correlation with long-term strength, with coefficients of determination less than 0.5. The freeze-thaw cycling process altered the degree of fragmentation of the sand and gravel materials, producing unique particle shape properties. This subsequently influences the alterations in the frictional resistance of the frozen soil, ultimately impacting the changes in its long-term strength. Improving the morphological characteristics of sand and gravel materials before use could be an effective way to enhance their resistance to freeze-thaw damage in engineering applications. In summary, our study demonstrates the importance of considering the effects of freeze-thaw weathering on the mechanical properties of sand and gravel materials. By improving their morphological characteristics, engineers can better protect these materials from damage caused by freeze-thaw cycling.

Pemanfaatan Agregat Sungai Buri’ Kecamatan Rembon Sebagai Substitusi Agregat Kasar Dan Sabut Kelapa Sebagai Bahan Tambah Terhadap Kuat Tekan Dan Kuat Tarik Belah Beton

In the current technological era, concrete is one of the most widely used building materials in the world, including in Indonesia, therefore good quality concrete will greatly support structural safety. Indonesia is also a developing country that has quite advanced industrial prospects. Buri River gravel material in Rembon Sub-district is still abundant. To utilize this material, in this study it will be used as a substitute for coarse aggregate. And the addition of coconut fiber as a fiber to support the compressive strength of the concrete, resisting the tensile force. This research is an experiment conducted at the Makassar Concrete Bosowa Laboratory. The substitution of the 'river buri' stamps to be used is 25%, 50%, 75%, and 100%. As for the use of added coconut coir, constant 4% of the weight of cement in each substitution. From the results of the study with the substitution of 25%, 50%, 75%, and 100% with the addition of 4% coconut husk, the results were 25.64 Mpa, 25.93 Mpa, 26.11 Mpa and 26.40 Mpa. And the split tensile strength produced is 2.59 Mpa, 2.97 Mpa, 3.11 Mpa, and 3.23 Mpa

A Study on the Abrasion Resistance of Hydraulic Structures with Different Repair Mortars

One of the main problems with hydraulic structures is that floating silt, gravel, ice sand, boulders, and other materials circulating over a concrete surface have an abrasive effect that causes hydraulic structures to abrade. Abrasion causes concrete to degrade, which could eventually expose the reinforcing to corrosion. In addition to section loss, reinforced concrete hydraulic structures’ endurance may also be a problem. Repair mortars are used to restore surfaces that have been abraded. The suitability of various repair materials for use as a repair layer on concrete surfaces is examined in this study. In order to apply different repair mortars to concrete specimens and subject them to abrasive forces, this work employs an experimental methodology. The ASTM C 1138 standard was followed for testing the abrasion resistance of the samples repaired using repair mortars underwater. Both silica fume mortar and polymer-modified mortar were employed in the study as forms of repair mortar. For each type of repair mortar, three cylindrical concrete specimens were cast, along with control specimens. Hence, nine cylindrical concrete samples in total were employed in this study. In order to quantify the effect of abrasion and, consequently, to assess the efficacy of various repair materials, abrasion volume loss was measured. Important findings about each type of repair material’s resistance to underwater abrasion are included in the study. The findings show that in terms of abrasion resistance underwater, the polymer-modified mortar performs better than the silica fume mortar.

Investigation of a basic nitrification–denitrification biofiltration system for primary wastewater treatment

Abstract The study aimed to eliminate the nitrogen and its main residual forms from municipal wastewater by using a biofilter system adapted for a small community. The biological nitrification/denitrification system used involved two successive PVC columns; a first gravel column (C1) loaded with primary wastewater followed by a second sandy column (C2). A complex biofilm development on the gravel and sand materials has been confirmed by scanning electron microscope. The efficiency of chemical oxygen demand (COD), BOD5, TSS, and NH4+-N removal from primary wastewater reached 75.3, 88.4, 83.5, and 88.1%, respectively, at the exit of the sandy column (C2). Inoculation with activated sludge as an external carbon source allowed an improvement in the nitrate removal, from 80 to 28 mg/l N-NO3. However, sludge inoculation showed non-significant fecal coliforms and Streptococcus contamination, and the biofilter appeared as effective for total nitrogen removal and a bacterial abatement of over 3.2 U-log10. The average bacterial removal seemed directly related to the applied load of about 50 cm/day and a tertiary disinfection treatment, such as UV-C254 irradiation, is needed as a preventive step to ensure the removal of pathogens.

Experimental studies on use of bamboo mat as stone column encasement in clayey soils

With the rapid urbanization and industrialization; scarcity of useful land is experienced for the infrastructure projects particularly in the urban areas. This has resulted in the use of sites with weak soil deposits such as soft clayey soils. Numerous problems are associated with these soils are high volumetric changes, heave, low bearing capacity, etc. So as to minimize the constructional difficulties associated with the soils; ground improvement techniques are practiced quite frequently on the sites. Stone column provision is one such approach used widely in the fields to enhance the properties of the weak soils. The stone column installation involves partial replacement of 10–35% of weak soils by gravelly materials to form stiffer composite mass.In the present study, an experimental program was undertaken to observe the improvement in strength properties of soft clayey soils collected from Nagpur area, Maharashtra State, India on insertion of stone column. Stone columns were placed single and in group with triangular arrangement. Effects of varying length (L) to diameter (D) ratios (i.e. L / D ratio) of stone columns on the strength properties were analyzed.As an attempt towards sustainable construction; demolition aggregates was used as partial replacement to the natural aggregate while preparing the stone columns. To increase the stiffness of stone column, cement was attempted in small quantity (4% by weight of aggregate) while preparing the specimen. Further, the use of bamboo mat as encasement was planned to study further improvement in load carrying capacity of stone column by increased lateral confinement.The experimental observations depict overall improvement in the load carrying capacity of clay beds on insertion of stone columns. Laboratory testing confirms the possibility of use of demolition waste in stone column construction, as the observed strength (uni-axial compressive strength) is 60–75% of the natural aggregate stone column. Use of bamboo as encasement is effective and shows noticeable improvement in the load carrying capacities (nearly 35–60%) and reduced settlement. Further, study illustrate that the use of single stone column is more effective.

RETRACTED: Study on the design of composite beams under complex environment in mountainous areas

The mountain area is faced with complex conditions such as vertical and horizontal valleys, complex geological topography, many earthquake fault zones, high seismic intensity, fragile ecology, and changeable climate. The traditional concrete bridges have a heavy weight, high consumption of sand and gravel materials, large structural dimensions of steel box composite bridges, high steel consumption, and poor overall horizontal performance of steel plate composite beams, which are not suitable for mountain construction conditions. Therefore, based on the construction environment and application requirements of highway bridges in mountainous areas, the structural scheme of steel box-steel plate composite beam is put forward in this paper, and the design of a 25 m–50 m standard-span steel box-steel plate composite beam is studied. The results show that the steel box-steel plate composite beam structure scheme is adopted, which has excellent mechanical characteristics of steel box girder and simple structure of steel plate girder. It has the mechanical characteristics of “balanced transverse force and excellent longitudinal force”, so it is a reasonable choice for small radius curved beam bridge in a mountainous area, so it is a reasonable choice for small radius curved beam bridge in a mountainous area. The steel box-steel plate composite beam adopts the integrated technology of manufacture, transportation and installation, which can better meet the road transport conditions in the mountain area. The longitudinal assembly of the manufacturing unit as the installation unit can ensure the rapid and high-precision installation of the construction site, and the assembly construction of the bridge in the mountain area has been realized. The technical and economic comparison shows that the mechanical performance of steel box-steel plate composite beam is similar to that of steel box beam and obviously better than that of steel plate girder. The steel consumption and construction period of steel box-steel plate composite beam are similar to that of steel plate girder, and are significantly less than that of the steel box girder. Therefore, the steel box-steel plate composite beam is a good choice for mountain bridge construction.

Plane Strain Simplified Analysis of Consolidation of a Foundation Penetrated by Concrete-Cored Gravel Columns

The consolidation solutions of the foundation penetrated by the concrete-cored gravel (CCG) columns have been proposed based on a single-column model under the axisymmetric condition. A CCG column consists of a precast concrete pile inserted at the center of sand or gravel materials. Numerical modeling is commonly adopted for multicolumn field applications. Converting the axisymmetric unit cell into the plane strain model saves computation load and numerical simulation time. This study proposed a plane strain conversion method for the foundation penetrated by CCG columns. The plane strain conversion goes through a geometric transformation, stiffness equivalence, and consolidation equivalence. The consolidation equivalence is conducted by equating the consolidation degree at any depth of the plane strain model to that of the axisymmetric model. The penetration effect of the converted inner wall is used to modify the equal strain assumption of the plane strain model. The validity of the proposed method is examined by comparing it with 3D numerical simulation results and the field data from an embankment case history. The comparison reveals that the proposed plane strain conversion method enables the numerical simulation of the CCG column-reinforced foundation to be handled easily and largely saves the computation resources.

The use of gravel crushing siftings sands for the production of cast emulsion-mineral mixtures «Slarri Sil»

In the article, the authors present the main use results of mineral materials from local open cast mines for the cast emulsion-mineral mixtures making «Slarri Sil» for the protective wearing course installation for asphalt concrete pavements. The production of cast emulsion-mineral mixtures «Slarri Sil» using sand sifting from crushing local gravel materials was carried out on regional category III highways (according to traffic intensity) of the Amur Federal Highway passing through the Amur Region. In accordance with the requirements for mineral materials for the production of cast emulsion-mineral mixtures «Slarri Sil», it was ruled to use the sandy fraction of the stone crushing sifting products of igneous rocks in accordance with National State Standard 8736 with the following properties quality indicators: strength grade greater than or equal to 1200, abrasion grade greater than or equal to I-1, frost resistance grade greater than or equal to F50. Due to the limited number of deposits with siftings for crushing dense rocks and the length of regional highways in the Amur Region, deposits use for the production of cast emulsion-mineral mixtures throughout the entire route make the construction of wear layers unprofitable. The research objective is the local sand and gravel mix of the Zeya and Bureya rivers for the production of Slurry Seal type cast emulsion-mineral mixtures. The authors present the results of determining the physical and mechanical parameters and grain compositions of sands from siftings of crushing sand and gravel mix and rock for protective wear layers of asphalt concrete pavements. The results of determining the adhesion of the binder with the mineral part of cast emulsion-mineral mixtures «Slarri Sil» on various sands of crushing siftings are presented. The results of testing sands from siftings of crushing gravel and siftings of igneous rocks for wet abrasion are shown. The results of experimental studies made it possible to substantiate the use of sand from gravel crushing siftings for the construction of a protective wear layer for asphalt concrete pavement made of cast emulsion-mineral mixtures type «Slarri Sil» on the roads of the Amur Region, including federal ones. The obtained results were used to prepare the standard of the organization company standard — closed stock corporation «Asfalt» — 001-2012 «Production of works on the installation of protective wear layers for asphalt concrete pavements from cast emulsion-mineral mixtures of the Slurry Seal type».

Численное моделирование участка реки в трехмерной постановке задачи для корректировки параметров проектируемых русловых карьеров

Extraction of alluvial sand and gravel materials is a large industry. It has been widely developed in many regions of Russia, which has an increasing impact on the riverbed processes in the form of changes in the morphological structure of riverbeds and floodplains under the influence of changing flow hydraulics. Changes in the hydrological regime and morphology of the riverbed can bring negative effects and progress over time, as well as at a considerable distance from the mining sites, as can be seen from the examples, which indicates the need for their comprehensive study. Leading higher educational institutions and research organizations in the field of hydrology, water transport and fisheries study the problems of the impact of anthropogenic changes in river beds. Summarizing the experience, it is recommended to predict the impact of a potential quarry on the hydrological conditions and morphology of the whole river section by numerical modeling of the channels in 3-D problem formulation. Different technological schemes of open pit mining are considered and modeled, the most acceptable (sparing) option minimizing the negative impact on the environment is selected and justified. In order to control the results obtained by numerical simulation, studies were also carried out using the methods recommended by the regulatory literature. Analysis of the results revealed their great convergence. The final results of the research were compared with the allowable parameters in the regulatory documents, recommendations were made on improving the quarry mining technology for minimizing its negative impact on the channel processes and the resulting transport logistics.