Surface settlement induced by horizontal directional drilling

作     者：Asif Ahmed Md Azijul Islam Md Zahangir Alam Hashmi S.Quazi 

作者机构：College of EngineeringState University of New York Polytechnic Institute(SUNY Poly)UticaNY 13502USA Department of Civil EngineeringThe University of Texas at ArlingtonArlingtonTX 76019USA Department of Civil EngineeringBangladesh University of Engineering and Technology(BUET)Dhaka 1000Bangladesh Converse ConsultantsRedlandsCA 92373USA 

出 版 物：《Underground Space》 (地下空间（英文）)

年 卷 期：2023年第8卷第1期

页      面：94-108页

核心收录：

学科分类：0820[工学-石油与天然气工程] 082001[工学-油气井工程] 08[工学] 

基　　金：This research did not receive any specific grant from funding agencies in the public  commercial  or not-for-profit sectors 

主　　题：Horizontal directional drilling(HDD) Surface settlement Cover depth Soil arching Borehole 

摘      要：Horizontal directional drilling(HDD)is a widely used trenchless method for underground utility *** associated ground settlement triggered by HDD depends on the size,types,and surface texture of pipe,diameter of borehole,and soil *** pre-sent study investigates the surface settlement due to the construction of a 1067 mm diameter HDD,which will replace an existing sewer siphon under the SR-60 highway in Chino,California using empirical,and numerical *** on the results obtained from the subsurface investigation,an empirical analysis was conducted *** by numerical modeling of the HDD using PLAXIS 2D soft-ware.A careful comparison between two different methods indicated closer values of surface settlement between the empirical method(7.3 mm)and the numerical modeling(4.6 mm).In addition,the shape of surface settlement and horizontal settlement curves for the empirical and numerical methods was found to be *** minor discrepancy between the two methods resulted as the numerical model can host several soil layers whereas the empirical equation can use only one type of ***,a parametric study was conducted to evaluate the effect of borehole cover depth,size,and soil parameters on surface *** was observed that soil strength param-eters yielded a greater effect on surface movement,whereas modulus of elasticity has a relatively smaller influence with zero contribution from Poisson’s ratio.