降雨入渗对川藏公路102滑坡群2#滑坡体稳定性影响分析

›› 2013, Vol. 27 ›› Issue (3): 16-19.

降雨入渗对川藏公路102滑坡群2^#滑坡体稳定性影响分析

徐国涛1，王培清1，2，何强1，路文斌1

（1.西藏农牧学院水利土木工程学院，西藏林芝 860000；2.河海大学岩土工程研究所，南京 210098）

收稿日期:2013-03-15 出版日期:2013-06-20 发布日期:2013-06-26
作者简介:徐国涛（1982-），男，汉族，山东潍坊人，硕士研究生，研究方向为岩土工程方面的研究。
基金资助:
基金项目：西藏自治区科技厅地区自然基金支助项目（201112）

Rainfall Infiltration on the Stability of the No.2 Landslide at Sichuan Tibet Highway

XU Guotao1,WANG Peiqing1,2,HE Qiang1, LU Wenbin1

(1.Department of Water Conservancy and Civil Engineering, Tibet Agricultural and Animal Husbandry College, Linzhi Xizang 860000;2.Institute of Geotechnical Engineering, Hohai University, Nanjing 210098)

Received:2013-03-15 Online:2013-06-20 Published:2013-06-26

摘要/Abstract

摘要： 川藏公路102滑坡群中2\+#滑坡规模最大，通过对该滑坡体现场取样，在室内分别进行颗分、击实、渗透以及剪切试验，试验数据分析和FLAC\+\{3D\}数值计算表明，该巨厚松散型滑坡主要由古冰碛物和松散体冲洪积物构成，降雨是诱发滑坡的主要因素之一。

Abstract: The 102 Landslide Group is located in Yigong Town, Bomi County of Linzhi, Tibet. They are on the right bank of Purlung Tsangpo River, which is the first tributary of Brahmaputra River. This landslide group is near the 102 Service Station of SichuanTibet Highway, and is about 60 km to the east of Bomi and 100 km to the west of Linzhi. The No.2 Landslide has the largest scale among this landslide group. The laboratory testing, such as, grain size distribution, Proctor test, permeability and direct shear tests are performed on samples from the landslide zone. Both the tests results and the FLAC3D numerical simulations show that the failed body is composed of glacial moraine and alluvial deposits. The rainfall is one of the main factors triggering the landslide.

Key words: 102 Landslide Group, Soil Mechanical Tests, Rainfall Infiltration, Safety Factor, Stability Analyses

徐国涛1，王培清1，2，何强1，路文斌1. 降雨入渗对川藏公路102滑坡群2^#滑坡体稳定性影响分析[J]. , 2013, 27(3): 16-19.

XU Guotao1,WANG Peiqing1,2,HE Qiang1, LU Wenbin1. Rainfall Infiltration on the Stability of the No.2 Landslide at Sichuan Tibet Highway[J]. , 2013, 27(3): 16-19.