Results 11 to 20 of about 58 (54)
Geofluids, 2021 The development of water-conducting fractures from underground coal mining is a geological cause of groundwater loss. Sealing mining-induced rock fracture channels through borehole grouting is an effective way to protect groundwater resources.
Jinfeng Ju, Jialin Xu, Jing Yang
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Advances in Civil Engineering, 2019 In the past decades, horizontal directional drilling (HDD) has been successfully used to install various pipelines in different strata. However, construction accidents such as drill-burying and drill-sticking occur occasionally when pipelines installed ...
Lingrong Kong +3 more
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Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 With the increasing number of river‐crossing pipeline projects, many studies have focused on the safety and stability of embankment slopes in horizontal directional drilling crossing embankment construction. In addition, it is challenging to study the influence of key processes in directional drilling construction on the antisliding stability of ...
Jinhuang Yu +4 more
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An Improved Model to Calculate Pullback Force of Trenchless Horizontal Directional Drilling Pipeline
Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 In the pullback operation of horizontal directional drilling pipeline crossing, the existing calculation and prediction models of pullback force are relatively simple. Each pullback force maze greatly simplifies the wellbore trajectory and fails to make a detailed analysis of the pipeline stress and external resistance when the pipeline is pulled back ...
Xiao-qiang Liang +6 more
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Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 To improve the prediction accuracy of tunnel excavation groundwater inflow, a prediction method based on a horizontal directional drilling geological survey is proposed. It relies on the monitoring and statistical analysis of groundwater inflow into a horizontal directional drilling survey borehole.
Xialin Liu, Junpeng Zou
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Applied Sciences, 2018 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— ...
Urszula Kwast-Kotlarek +2 more
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Pipeline Lifting Mechanics Research of Horizontal Directional Drilling
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 During lifting pipeline of horizontal directional drilling (HDD), the rotation angle of pipeline is determined by such parameters as the location of lifting point, axial force, and length of pipeline. The continuous beam theory is used to analyze the mechanical behaviour of pipeline during lifting construction, and the mechanical model of pipeline ...
Zhengwei Guo +5 more
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Energies, 2020 An increase in demand for energy natural resources has stimulated the development of gas pipeline networks in Europe, as well as globally. Also, in Poland in recent years there has been a significant increase in natural gas consumption.
Rafał Wiśniowski +3 more
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Engineering Innovation of a Length of Nearly 3300m large Diameter Pipeline Installed by HDD
Earth Sciences Research Journal, 2016 The Yangtze River Crossing Project, which is part of the Chinese gas pipeline trunk network and aims to transmit the natural gas to the Yangtze River Delta area, sets up a record for the length of Horizontal Directional Drilling (HDD) in the world.
Li Guohui, Ma Xiaocheng, Yang Chunling
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Theoretical problems of pipe inserting by making use of the method of horizontal directional drilling [PDF]
Acta Montanistica Slovaca, 2008 The technology of pipe laying by making use of the method of horizontal directional drilling with a high-pressure liquid and withbackward laying (hereinafter HDD technology – Horizontal Directional Drilling) has been considerably used in the Czech ...
Jaroslav Raclavský
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