Construction Technology Research Articles

Roadbed Pavement Construction Technology of Road and Bridge Transition Section

Roadbed Pavement Construction Technology of Road and Bridge Transition Section

A Review of Vertical Shaft Technology and Application in Soft Soil for Urban Underground Space

With the ongoing urbanization and densification of cities worldwide, the planning and utilization of urban underground space (UUS) have become crucial for developing urban underground infrastructure. Given the limited construction space within dense urban areas and the influence of declining groundwater levels, technologies such as open caissons and various vertical shaft methods have been introduced for UUS development. However, the dissemination of these technologies remains fragmented across different domains, lacking systematic summarization. A comprehensive, up-to-date overview of open caisson and vertical shaft technologies is essential for their effective application. In the manuscript, a systematic analysis of vertical shaft technologies, specifically focusing on their use in soft ground conditions, is conducted. The analysis is based on an extensive literature review and case study evaluation. It addresses the unique challenges posed by high compressibility, low bearing capacity, and groundwater sensitivity. Conventional shaft technologies and mechanized systems, including open caissons, drilled shafts, and the novel pressed-in ultra-deep assembled shafts (PIAUS), are evaluated systematically. Key aspects such as design principles, construction techniques, and stability in soft soils are discussed. The limitations of conventional methods in soft UUS are highlighted, while the advantages of advanced mechanized systems—such as rapid construction, reduced environmental impact, and improved safety—are emphasized. A detailed comparison of case studies demonstrates that PIAUS construction technology is particularly efficient in urban areas with confined spaces, dense building conditions, and ground conditions up to 200 MPa, with shaft diameters up to 12.8 m and depths of 115.2 m. Additionally, its suitability for rapid construction in soft and medium ground conditions is supported by undrained excavation with parallel excavation and liner sinking techniques. The PIAUS technology shows considerable potential for future projects, including shield construction shafts, ventilation shafts for tunnels, underground parking garages, and stormwater storage wells. This manuscript also highlights emerging mechanized methods in underground space development, their advantages, limitations, and areas for future research and improvement.

Bibliometric analysis of energy efficiency in the context of developed and developing countries

When we look at the studies conducted on energy efficiency in the last 30 years, researchers have studied many individual and mass effects of energy efficiency. Studies conducted in the academic field around the world constitute essential data for determining the tendencies of countries in this direction and their goals. In practice, including these academic studies is essential for achieving a country’s development and energy efficiency goals. Many studies have been conducted on how countries dependent on foreign energy should proceed in this regard and what can be done in terms of savings and the use of renewable energy. This study aims to enrich the knowledge structure in the energy efficiency literature of Turkey, Germany, and Iran, countries with different economic development levels and energy policies, and to understand how energy efficiency is addressed in different economic and political contexts. In this context, the current literature was reviewed using the bibliometric method to understand the current information network of energy efficiency research in Türkiye, Germany, and Iran and to emphasize the future direction of scientific studies in this field. The Web of Science (WoS) data of countries subject to research between 1990-2023 were taken for analysis. This study analyzed 1411 articles published in civil engineering, building construction technologies, and architecture on energy efficiency in Türkiye, Germany, and Iran. A recently developed R studio program called "bibliometrics" was used to analyze the data, and the "biblioshiny" extension was used to visualize the outputs. In this study, the correct handling of the interactions of energy efficiency with renewable energy source consumption conservation revealed that countries showed a more holistic approach to the subject. In addition, concrete data has been presented for policymakers, revealing how energy efficiency studies differ according to the level of economic development. The analyses were conducted specifically for Turkey, Germany, and Iran. In general, such studies will benefit by bringing together researchers from different fields and countries to shed new light on energy-efficiency questions in future research.

Application of intensive construction technology in the grand Paris express project: A review

Application of intensive construction technology in the grand Paris express project: A review

The Effect of Implementing Green Construction on Project Performance: A Comprehensive Study Using Structural Equation Models (S.E.M.)

Abstract The construction industry plays a crucial role in development but also faces serious challenges related to environmental impact and occupational safety. The sector contributes significantly to producing solid waste, air, water, soil pollution and emissions of hazardous gases. In addition, high noise levels from construction activities can harm public health. Workplace accidents at construction sites are also a major problem, with impacts ranging from worker safety to project costs. Green construction offers a comprehensive solution to address these issues. By adopting sustainable practices such as efficient waste management, using environmentally friendly materials, and implementing modern construction technologies, projects can reduce their negative impact on the environment. This study uses the Structural Equation Model (S.E.M.) to analyze green construction implementation’s effect on project performance. This study identifies 20 green construction indicators and evaluates their impact on five aspects of project performance: cost, time, quality, Occupational Health and Safety (O.H.S.), and Green Building performance. The analysis results show that green construction has a significant and robust effect on cost performance and a moderate impact on time, quality, and O.H.S. performance. Project documentation is identified as the most influential green construction indicator, while conservation and energy efficiency have the lowest effects. Another interesting finding is that implementing 86% of green indicators is optimal for Green Building Performance, indicating a balance between sustainability and project efficiency. This study provides valuable insights for practitioners and policymakers in optimizing sustainable construction practices and developing more effective regulations for the green construction industry.

Development of a Conceptual Model on Adoption of 3d Printing Technologies in Indian Construction Industries

This paper examines the adoption of 3D printing technologies in the Indian construction industry, focusing on organizational behavior and decision-making processes. Employing the Technology-Organization-Environment-Policy (TOEP) framework, the study highlights critical factors such as technological readiness, organizational capabilities, environmental influences, and policy regulations. In-depth interviews with Indian construction firms reveal insights into their perceptions, challenges, and motivations regarding 3D printing adoption. The findings underscore the importance of financial considerations, regulatory clarity, and sustainability incentives in fostering innovation. By addressing key barriers and identifying drivers, the study offers valuable perspectives to advance the integration of 3D printing technologies in Indian construction, contributing to improved efficiency and eco-friendly practices. KEYWORDS: 3D Printing, Indian Construction Industry, Technology Adoption, TOEP Framework, Organizational Behavior.

The Innovation, Integration, and Development Path of AI Art in the Framework of Smart Cities

The deep integration of smart city construction and artificial intelligence technology provides technical support and cultural context for the innovative development of AI art. Through interdisciplinary research methods, this paper constructs a three-dimensional analysis framework of “technology empowerment-scene reconstruction-ecological collaboration” to systematically explore the integration mechanism and practical path of AI art in smart cities. The study found that AI art has reshaped the spatial narrative of urban public art through data-driven creation, algorithmic style transfer, and real-time interactive design. It demonstrates unique value in the revitalization of cultural heritage, citizen participatory creation, and industrial digital transformation. However, issues such as technical ethical controversies, data sovereignty games, and aesthetic paradigm shifts need to be urgently addressed. This study proposes a collaborative development path of “policy guidance-algorithm transparency-cultural embedding” to provide a theoretical reference for enhancing the humanistic value of smart cities.

Hydraulic Sliding Formwork Construction Technology for Main Pier Columns of Highway Bridges

Hydraulic Sliding Formwork Construction Technology for Main Pier Columns of Highway Bridges

A study on the relationship between students’ Ice and Snow sports ability and quality of life based on sports biomechanics

This study investigated the relationship between students’ level of competence in Ice and Snow sports and their quality of life at Heilongjiang Institute of Construction Technology. It examined the participants’ profile namely gender, grade level, and program of study, assessed their level of competence in knowledge, skills, and attitude towards Ice and Snow sports, and measured their quality of life across physical, psychological, environmental, and social domains. The study also explored significant differences in competence and quality of life across participant profiles, investigated the relationship between these two constructs, and identified problems and challenges faced by students in relation to Ice and Snow sports. Biomechanical analysis reveals that regular participation enhances postural stability (ROM improvement 15%–22%) and muscle coordination efficiency (EMG variance reduction 18% ± 3%), mediating 31% of QoL improvement through physiological adaptation pathways. It employed a mixed research approach and included students and teachers as participants. Participants were selected through a random sampling technique using the Lynch formula. Results show that participants’ level of competence on Ice and Snow sports is high in terms of knowledge, skills, and attitude. Additionally, they have a high level of quality of life in terms of physical, psychological, environmental, and social relationships. Based on the findings, the research proposed a plan of action to enhance both students’ competence in Ice and Snow sports and their overall quality of life, aiming to provide insights for improving educational and recreational programs within the context of the Heilongjiang Institute of Construction Technology.

Index Evaluation and Application of Green Innovation Ability in the Pearl River Delta Science and Technology Park

This paper takes the green innovation in 15 science and technology parks in the Pearl River Delta region as a sample, uses the AHP-Fuzzy evaluation method to construct an index evaluation model with 5 first-level indicators and 9 second-level indicators, and analyzes the essential connotation and key influencing factors of green innovation ability in science and technology park. The research found that among the first-level indicators, “industrial innovation”, “incubator innovation” and “policy innovation” ranked among the top three key factors. Among the second-level indicators, the three factors of “enterprise incubator innovation”, “government policies and fiscal and financial policies” and “the development of new industries and emerging industries” have a significant impact on the innovation capabilities of science and technology parks. Accordingly, some suggested measures are put forward to provide theoretical and practical guidance for improving their green innovation ability. The main innovation of this paper is to construct an evaluation model of science and technology park suitable for the green innovation ability of science and technology park according to the social and economic development of the Pearl River Delta city belt and to test its effectiveness. In view of the technology, complexity, ambiguity and pluralism of the evaluation index construction of green innovation ability in science and technology parks in practice, the index evaluation model and application strategy in this paper hope to provide a theoretical reference for the park operators to improve their benefits and promote the development of regional industrial clusters.

Comprehensive Review on Foamed Concrete and its Utilization in Contemporary Construction Technology

This paper presents a comprehensive examination of foamed concrete and its use in contemporary building technology. Due to its lightweight and porous properties, foamed concrete provides notable advantages such as improved thermal insulation, soundproofing, and decreased structural load. The assessment documents progress in foamed concrete technology, encompassing enhancements in mix composition, resilience, and environmentally sustainable manufacturing techniques. Notwithstanding its benefits, the presence of problems such as variable quality control, absence of standardized testing, and long-term performance problems is emphasized. The analysis also examines the many uses of the material, ranging from structural elements to non-structural filler, and its contribution to sustainable building methods. The paper suggests future research paths that highlight the need of conducting further study on performance optimization and expanding the range of application scenarios. By effectively tackling these obstacles and capitalizing on continuous technical progress, foamed concrete has the capacity to greatly influence modern building methods, providing a range of environmental and economic advantages.

Factors motivating blockchain adoption in the construction industry in Thailand

Factors motivating blockchain adoption in the construction industry in Thailand

Construction Technology of Ultra-thin Hyperbolic Fully Cast Steel Tower Structure

When constructing iconic buildings in urban squares or open spaces, there is a type of ultra-thin double curved fully cast steel tower structure that is recognized and widely promoted for its beautiful architectural design, reliable structural safety, and other advantages. Due to its limited application in the field of architecture, researching and summarizing the construction technology of this structure has progressive significance.

Intelligent Proportion Optimization of SFRC Using Ensemble Learning: A Multi-Objective Predictive Framework

Steel fiber-reinforced concrete (SFRC) is formulated by incorporating short, slender steel fibers into standard concrete, thereby creating a composite material. This addition significantly mitigates the brittle nature of concrete, enhancing its strength, toughness, and durability. The application of SFRC not only improves structural safety and service life but also promotes the development of green building materials and efficient construction technologies. To optimize the mix proportion design of SFRC, key parameters such as steel fiber content, water, cement, sand, natural aggregates, and water reducer were collected. A neural network model was constructed to leverage its powerful nonlinear mapping capabilities, establishing an implicit relationship between the mix proportions and compressive strength. The trained model enables rapid prediction of SFRC compressive strength, while a genetic algorithm was employed to inversely search for the optimal mix proportions that meet target performance requirements, providing a novel approach and design strategy for the intelligent design of SFRC.

Research on Fatigue Performance of Segmental Precast Concrete T‐section Beams

AbstractIn order to study the fatigue performance of segmental precast concrete T‐section Beams, six test beams were designed and manufactured with the construction technology (integral cast‐in‐place and segmental precast) and key teeth type (large key‐joint and double key‐joint) as the control factors. Through the two‐point loading test, the ultimate bearing capacity of the test beam is obtained, which provides a basis for the upper limit and lower limit of the fatigue test load. After that, fatigue loads were carried out on the three test beams manufactured in the same batch as the test beams in the static load test, and the concrete compressive strain, steel strand strain, mid‐span deflection, and fatigue damage mode near the joints during the fatigue test were obtained, and the processing technology was discussed. and teeth type on the fatigue performance of T‐section Beams. The test results show that the growth of concrete compressive strain, steel strand tensile strain, and mid‐span deflection near the joints of segmental prefabricated T‐section Beam conforms to the three‐stage growth law. Under the same fatigue load, the fatigue performance of the T‐section Beam processed by the integral cast‐in‐place process is better than that of the T‐section Beam processed by the segmental prefabrication process, and the fatigue performance of the segmental prefabricated assembled beam with double key‐joint is better than that of the prefabricated assembled beams with large key‐joint. Based on the static loading results after different cycles in the fatigue test, the stiffness degradation laws of segmental prefabricated concrete beams with different teeth types are obtained, and the stiffness degradation of the double‐key‐teeth segmental beam is slower than that of the large‐key‐teeth segmental beam.

Application of digitalization and computerization technology in road construction

Application of digitalization and computerization technology in road construction

Key technology of pipe jacking construction in low temperature and cold area

AbstractWith the development of pipe jacking technology, it has been widely used all over the country. Usually, the construction of slurry balanced pipe jacking will avoid the construction in cold winter areas. However, with the continuous breakthrough of pipe jacking length, in order to not interrupt the construction, necessary measures will be taken to carry out pipe jacking construction in severe cold areas in winter under special circumstances. Based on the construction of Jiaoliu River non‐pressure tunnel jacking project in the tunnel section of Yinchao‐Jiliao Water Conveyance Project, this paper introduces the key technologies of winter construction of pipe jacking project, including the construction of thermal insulation shed, boiler heat calculation, pipeline thermal insulation measures, mud heating system, etc., and carries out temperature monitoring in each position of pipe jacking pipe and thermal insulation shed, which verifies the feasibility of winter construction scheme of slurry balance pipe jacking, and provides reference for subsequent pipe jacking projects in similar cold regions.

Application of BIM Technology for Construction of Jieyang Chaoshan International Airport Expansion Project with Non‐suspending Air Service

AbstractThe role of airports in urban transportation infrastructure development is becoming increasingly prominent, and the number of construction projects for airport terminal expansion is gradually rising in China. Common characteristics of airport expansion construction projects include multiple participating contractors, large‐scale investments, non‐suspending operations, tight schedules, and challenging progress management. The application of traditional information exchange and management methods has shown its limitations. The emergence and development of Building Information Modeling (BIM) technology provides a platform and new perspectives for the design, green construction, and operation and maintenance (O&M) management of terminal expansion projects. This project relies on the Jieyang Chaoshan International Airport (JCIA) terminal expansion project, applying BIM and digital simulation technology to the construction phase of the project, promoting the organic integration of project design and construction, ensuring project quality and the safety of non‐stop construction, improving management efficiency, and shortening the construction period. Practice has proven that BIM technology effectively solves the safety pressure of nonstop construction in airport renovation and expansion projects, and can provide reference and guidance for large‐scale public building renovation and expansion projects.

Research and Application of Green Construction Technology of Permanent Temporary Combination of Shield Launching and Receiving Shaft

Abstractrelying on the main structure project of Guangzhou fangbai intercity Baifang shield shaft, this paper carries out the green construction fine management of the permanent and temporary combined structure at the expanded end of the shield shaft, and makes it use the visualization technology to inverse the positioning of the embedded sleeve of the ring frame beam and the main reinforcement of the side wall, avoiding 1680 welded joints of the reinforcement of the side wall, saving 80 working hours; When erecting the support frame, the concrete waist beam cutting and transporting platform and the side wall steel formwork tripod platform are designed and constructed together to reduce the repeated erection of the support frame by 832.5t, and the cumulative maximum settlement of the steel platform for cutting and transporting the waist beam concrete is ‐8mm, which does not exceed the warning value; The triangular frame of steel formwork and the split bolt support system of formwork replace the full hall support frame, optimize the amount of plate buckle frame 1432.5t, save 438.10t of steel pipe and 972.6m2 of wood formwork, reduce the investment of operators by nearly 30%, and shorten the construction period by 15 days.

Prefabricated Construction in the Residential Real Estate Market

Abstract Persistent housing shortages and escalating housing investment costs in numerous countries drive the search for technologies that enable faster, cost-effective housing development. Prefabrication technology has emerged as a promising solution, which enables buildings to be constructed in significantly shorter timeframes compared to traditional methods. This approach utilizes prefabricated structural elements manufactured in controlled factory settings, leading to a substantial reduction in the carbon footprint associated with the construction process. This study focuses on two primary objectives: 1) Identifying the key factors for integrating prefabricated construction technology into the multifamily housing market, especially within the framework of sustainable development policies and the growing housing gap, and 2) Examining buyer preferences to assess their openness toward prefabricated construction in the multifamily residential market. Identification of the determinants of the implementation of prefabricated technology was carried out based on comprehensive literature review and critique of source documents. Additionally, buyer preference surveys were conducted among residents in post-communist Central and Eastern European countries (Poland, Bulgaria, and Ukraine).