Results 31 to 40 of about 2,873 (95)
Technical difficulties and innovation in the Jiangyin Yangtze River crossing project of 3300 m HDD
Natural Gas Industry B, 2014 The Jiangyin Yangtze River Crossing Project sets up a record with the length of horizontal directional drilling (HDD) of 3300 m in the world. Inevitably, many technical difficulties might exist in pilot hole docking, reaming torque, property requirement ...
Wu Yiquan +4 more
doaj +1 more source
Application of Digital Image Cross Correlation to Study Sinkhole Collapse
International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013 This paper presents the results of a study using a transparent soil experimental technique and numerical modeling to detect 3D deformations resulting from submerged cavities that lead to a sinkhole. Excessive deformations from underground activity beneath highway pavements could lead to sinkhole collapse. The formation of a sinkhole is often sudden and
Mahmoud Ahmed +4 more
wiley +1 more source
Yantu gongcheng xuebaoDetermining the mud flow direction in large-scale horizontal directional drilling (HDD) projects is crucial for accurately calculating the minimum required circulation pressure, flow rate, and drilling pressure.
WANG Zhiyu 1, HU Changming 1, 2, WANG Peiyan 1, YANG Chao 3, LIANG Hui 3
doaj +1 more source
HDD - horizontal directional drilling, pressure related failures caused by pilot drilling operations
, 2008 Innovations in Structural Engineering and ...
Schaiter, Bernhard, Girmscheid, Gerhard
openaire +2 more sources
A glimpse of horizontal directional drilling productivity factors
MATEC Web of Conferences, 2018 Horizontal Directional Drilling (HDD) is a trenchless technology provides an installation alternative that offers a lot of benefit compared to traditional open-cut method.
Salleh Mohd Norizam +4 more
doaj +1 more source
Engineering Reports, Volume 8, Issue 3, March 2026.The Bilaspur region lies in a highly seismic zone, requiring special attention for infrastructure development like tunnel construction. Rock strength in the area is low, posing challenges for stable tunnel design. RMR values range from 21 to 30, categorizing the rock mass as Poor, requiring robust support measures.
Baalamurugan Arumugam +4 more
wiley +1 more source
Water Resources Research, Volume 61, Issue 7, July 2025.Abstract Braided rivers are a significant contributor to groundwater flow in braidplain aquifer (BPA) systems, yet the spatiotemporal variations in flow exchange remain poorly understood. This study presents an extensive active‐distributed temperature sensing data set collected over a 3‐year period from two 100‐m long fiber optic cables installed up to
A. J. Sai Louie +4 more
wiley +1 more source
InfrastructuresThis study explores the structural safety, mechanical response and optimal construction parameters of the Horizontal Directional Drilling (HDD) technology applied in airport rigid pavements novelly for navigation lighting renovation.
Yun Sheng +3 more
doaj +1 more source
Ampacity assessment and enhancement scheme for power cables for HDD installation
Zhejiang dianliDirectional drilling installation of cables at great depths and spans is a common method for crossing non-excavated areas. However， existing methods for assessing the ampacity of cables installed via horizontal directional drilling （HDD） do not account ...
YU Shangyu +5 more
doaj +1 more source
A systems engineering approach for realizing sustainability in infrastructure projects
HBRC Journal, 2017 Sustainability is very quickly becoming a fundamental requirement of the construction industry as it delivers its projects; whether buildings or infrastructures.
Mohamed Matar +4 more
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