Finite Element Modeling of the Bearing Capacity for Transmission Tower Foundations on Expansive Soil

被引：1

作者：

Su, Zheng ^{[1
,2
]}

Lu, Xilin ^{[1
,2
]}

Qian, Jiangu ^{[1
,2
]}

Qi, Daokun ^{[3
]}

机构：

[1] Tongji Univ, Minist Educ, Key Lab Geotech & Underground Engn, Shanghai 200092, Peoples R China

[2] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China

[3] State Grid Henan Econ Res Inst, Zhengzhou 450052, Peoples R China

来源：

PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: MULTI-PHYSICS PROCESSES IN SOIL MECHANICS AND ADVANCES IN GEOTECHNICAL TESTING | 2018年

关键词：

Expansive soil; Shear strength; Transmission line tower; Bearing capacity; Numerical simulation; SHEAR-STRENGTH;

D O I：

10.1007/978-981-13-0095-0_12

中图分类号：

学科分类号：

摘要：

To satisfy the increasing power demands, lots of transmission lines are constructed in the middle-west of China. Expansive soil widely distributes in these areas, and the safety of foundation for transmission line tower needs to be evaluated. Based on consolidated drained triaxial tests, the cohesion and internal friction angle of unsaturated expansive soil were obtained. The compressive and uplift bearing capacities of the plate foundation for transmission line tower foundation were analyzed by 3D finite element modeling. The failure mode of the plate foundation under compressive load shows a local shear mode. For the uplift bearing capacity, the failure mode shows an annular apophysis mode around the plate foundation at the surface. The influence of the saturation of soil on the bearing capacity is more obvious than the uplift bearing capacity of a plate foundation.

引用

页码：102 / 110

页数：9