Numerical investigation of pile responses induced by adjacent tunnel excavation in spatially variable clays

被引：33

作者：

Gu, Xin ^{[2
]}

Chen, Fuyong ^{[2
]}

Zhang, Wengang ^{[1
,2
,3
,4
]}

Wang, Qi ^{[2
]}

Liu, Hanlong ^{[1
,2
,3
]}

机构：

[1] Chongqing Univ, Key Lab New Technol Construct Cities Mt Area, Chongqing, Peoples R China

[2] Chongqing Univ, Sch Civil Engn, Chongqing, Peoples R China

[3] Chongqing Univ, Natl Joint Engn Res Ctr Geohazards Prevent Reservo, Chongqing, Peoples R China

[4] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China

来源：

UNDERGROUND SPACE | 2022年 / 7卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Pile response; Tunnel excavation; Random field; Spatially variable clays; Random finite difference analysis; INFLUENCE ZONES; MODEL TEST; SOIL; FOUNDATION; PREDICTION; FIELD;

D O I：

10.1016/j.undsp.2021.09.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The pile responses induced by adjacent tunnel excavation have been a hot research topic in geotechnical engineering. Tunnel exca-vation may exert disturbance to the surrounding soil mass and then influence the adjacent pile foundations. In this paper, the random finite difference analysis considering the spatial variations of soil properties is conducted to explore the effect of tunnel excavation on the adjacent pile response by varying the distance of pile away from the tunnel centerline (D), the pile length (L), the pile diameter (d(p)), the tunnel depth (h), and the anisotropic ratio between the horizontal and the vertical scales of fluctuation (delta(x)/delta(y)). A set of pile response curves are developed to assess the influence of tunnel excavation on the adjacent passive pile foundations in spatially variable clays and provide guidelines for the tunnel excavation in the complex constructed environment.

引用

页码：911 / 927

页数：17

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