Introducing Bentonite into the Environment in the Construction Stage of Linear Underground Investment Using the HDD Method

Urszula Kwast-Kotlarek,Maria Hełdak,Jakub Szczepański

doi:10.3390/app8112210

Urszula Kwast-Kotlarek, Maria Hełdak + Show 1 more

Open Access

https://doi.org/10.3390/app8112210

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Abstract

The study discusses the issue of introducing drilling fluid (bentonite) into the environment during the construction of linear underground investments, considering the example of the construction of the high-pressure gas pipeline, Czeszów—Kiełczów DN1000, which involved the use of the Horizontal Directional Drilling (HDD) method. The analyses concern the drilling stage as a low-waste technology, indicating the use and management of bentonite drilling fluid in a closed circulation cycle in the area of Pęciszów, poviat Trzebnica (Poland). The loss of drilling fluid in valuable natural areas during the construction stage of the gas pipeline has been analyzed. Drilling fluid is an element of the horizontal directional drilling technology (HDD). The analyzed area included a section of the route of the strategic gas pipeline, realized in June–July 2017 in an area of lowland ash and alder forest 91E0-3, a probable breeding site of the Bluethroat for a detailed description and common frog. The loss of the drilling fluid used in the drilling phase has been determined, depending on the type of soil and the related fraction as well as the possibility of treating the drilling fluid used to construct the drilling.

Highlights

Line investments in Poland are in a phase of dynamic development, while, on the other hand, environmental protection tools are being improved by strengthening the relevant legal regulations.The issues related to the realization of the construction process have been regulated in numerous legislative acts
The influence of the investments connected with the construction of the DN1000 gas pipeline on agricultural areas varies in different stages of the investment process
Horizontal directional drilling enables the construction of various types of installations using the trenchless method in all locations, where it is impossible to construct an open trench for pipes or cables

Summary

Introduction

The issues related to the realization of the construction process have been regulated in numerous legislative acts. [2], the sources of substantive law concerning this issue include, first of all, the Spatial Planning and Land Development Act [3], the Real Estate Management Act [4], and the Construction Law [5]. The investment and construction processes were discussed, among other things, by Bakowskiand Szwajder [7], who define them as a series of planning, design, technical and construction actions or activities that are required to erect a construction object, its operation and liquidation. From the point of view of the research presented here, the construction stage, i.e., the phase of realizing the investment, is more important than the stage of operation and liquidation of the transmission facility

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