Results 41 to 50 of about 234 (181)
Water Science and Technology, 2021 Throughout Europe, there is a considerable need for investment in the upgrade of sewer systems – due to three main factors: ageing infrastructure, climate change and urban population growth.
J. Kvitsjøen +4 more
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Case Study of Trenchless Technology Around The Globe
International Journal for Research in Applied Science and Engineering Technology, 2022 Abstract: Trenchless technology is the science of installing, repairing and renewing underground constructions, pipes, and cables that minimize the use of open-cut excavation methods. The use of traditional construction techniques, preferably open-cut construction are being used less because of innovation in trenchless methods. These methods reduce the
Chandan Choudhary +5 more
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Engineering Reports, Volume 7, Issue 1, January 2025.The study reveals high‐pressure buckling in quick‐lock sleeves and proposes a reliable design model. These research findings offer valuable guidance for the structural design and construction of localized repairs in municipal water supply and drainage networks.
Zhicheng Luo, Xuefeng Yan
wiley +1 more source
Mechanical Analysis of DS in Horizontal Directional Drilling
Applied Sciences, 2022 In recent years, trenchless horizontal directional drilling (HDD) technology has developed rapidly towards the direction of large pipe diameter and long span. During construction, the buckling deformation and large drag torque of the drillstring (DS) are
Hua Tong, Yongbo Shao
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Engineering Reports, Volume 7, Issue 1, January 2025.This article investigates the calculation method of headrace resistance for pipe jacking in rocky and soil–rock composite strata, and the calculation method is certified to be feasible by examples. ABSTRACT Jacking force is one of the most important parameters in the design and construction of pipe jacking engineering, and cutterhead resistance is an ...
Yulong Cao +7 more
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BuildingsConventional trenchless pipeline rehabilitation technologies are primarily designed for circular pipelines, with limited applicability to box culvert structures. Even when adapted, these methods often lead to significant reductions in the effective cross-
Shi-Qing Wang +4 more
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Roadway Culvert Asset Management: Systematic Review and Future Research Directions
Advances in Civil Engineering, Volume 2025, Issue 1, 2025.Culverts are essential for the sustainability and safety of transportation infrastructure. Despite their significance, they are often insufficiently managed, leading to significant socioeconomic and environmental repercussions. This systematic review critically evaluates the current state of roadway culvert asset management (RCAM), focusing on ...
Aashish Khadka +3 more
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Applied SciencesSuper-large-diameter caissons, serving as working wells for trenchless pipe jacking technology, are being extensively constructed alongside the increasing adoption of trenchless technology in urban areas.
Leisi Dou +4 more
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Evaluation of an Alternative Tunnel Support System to Build Shallow Metro Stations at Urban Areas
Advances in Civil Engineering, Volume 2025, Issue 1, 2025.Ground surface settlement is the most significant restriction when constructing shallow metro station tunnels in urban areas. The umbrella arch method (UAM) is generally applied as a tunnel support method. However, UAM becomes inadequate in some soil conditions, such as loose sand or soft clay.
Mücahit Namlı, Arnab Biswas
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Optimization of light hydrocarbon recovery system in condensate gas field
Energy Reports, 2019 During the middle and later stages of condensate gas field development, the flow rate and pressure of the light hydrocarbon recovery system gradually decrease, and there is a certain deviation between the design parameters and the actual operation ...
Hongfang Lu +3 more
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