福建省永泰县东门旗山滑坡诱发机理与防治措施

doi:10.13278/j.cnki.jjuese.20180082

吉林大学学报(地球科学版) ›› 2019, Vol. 49 ›› Issue (4): 1063-1072.doi: 10.13278/j.cnki.jjuese.20180082

福建省永泰县东门旗山滑坡诱发机理与防治措施

常晓军^1,2, 葛伟亚², 于洋³, 赵宇⁴, 叶龙珍¹, 张泰丽², 魏振磊⁴

1. 国土资源部丘陵山地地质灾害防治重点实验室, 福州 350002;
2. 中国地质调查局南京地质调查中心, 南京 210016;
3. 浙江大学海洋学院, 浙江舟山 316021;
4. 浙江大学建筑工程学院, 杭州 310058

收稿日期:2018-04-20 出版日期:2019-07-26 发布日期:2019-07-26
通讯作者: 于洋(1986-),男,讲师,博士,主要从事地质灾害防治研究工作,E-mail:yang-yu@zju.edu.cn E-mail:yang-yu@zju.edu.cn
作者简介:常晓军(1982-),男,高级工程师,主要从事工程地质、灾害地质调查研究工作,E-mail:shaanxipeople@163.com
基金资助:
国土资源部丘陵山地地质灾害防治重点实验室开放基金项目（2015k001）；浙江省自然科学基金项目（LQ17D020001）；舟山市-浙江大学海洋学院联合项目（2017C82220）

Mechanism and Mitigation Measures of Qishan Landslide of Yongtai in Fujian Province

Chang Xiaojun^1,2, Ge Weiya², Yu Yang³, Zhao Yu⁴, Ye Longzhen¹, Zhang Taili², Wei Zhenlei⁴

1. Key Laboratory of Geohazard Prevention of Hilly Mountains, Ministry of Land and Resources, Fuzhou 350002, China;
2. Nanjing Center of China Geological Survey, Nanjing 210016, China;
3. Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China;
4. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China

Received:2018-04-20 Online:2019-07-26 Published:2019-07-26
Supported by:
Supported by Open-Fund of Key Laboratory of Geohazard Prevention of Hilly Mountains,Ministry of Land and Resources (2015k001), National Science Foundation of Zhejiang Province (LQ17D020001) and Zhoushan City-Ocean College of Zhejiang University Joint Fund (2017C82220)

摘要/Abstract

摘要： 为明确降雨诱发滑坡机理及为防治措施确定依据，本文以福建省永泰县东门旗山滑坡为研究案例，在充分的地质勘探资料以及降雨期间滑坡位移监测数据的基础上，从内部与外部因素两个方面分析了滑坡的诱发机理，并通过数值方法对滑坡稳定性演化历程进行了反分析，将滑坡治理分为应急处理与长期加固两个阶段。在应急处理阶段，以拦排地表与地下水为主要工程措施，依据滑坡体不同部位滑动速率与降雨量的关系，验证推移式滑坡判断，得出先将排水措施布设于滑坡下部的结论；在长期加固方面，以抗滑桩为主要加固措施，以抗滑桩工程造价最低为优化目标，结合数值模拟与理论计算方法，得到最优抗滑桩设计方案为布桩于滑坡体中下部、桩径1.0 m、桩净距与中心距分别为2.0 m和3.0 m。

关键词: 滑坡, 降雨, 滑坡治理, 数值模拟, 理论分析

Abstract: In order to clarify the mechanism of rainfall-induced landslides and to determine the basis of prevention and control, the Dongmen Qishan landslide was fully studied. The landslide occurred in Yongtai County, Fujian Province. Based on detailed geological survey and monitored displacement during rainfall period, the mechanism of landslide activation was studied from the perspectives of geological condition and influencing factors. The evolution of the landslide was investigated by using Geostudio, and on which landslide control can be divided into two main steps. The first step is emergency mitigation, in which drainage is designed to decrease groundwater level in the landslide. Based on the analysis of the relationship between rainfall and landslide deformation velocity, the drainage is to be installed in the lower part of landslide. The second step is to install stabilizing piles. Based on numerical and theoretical analyses, the stabilizing piles should be installed in the lower part of the landslide. The diameter, net spacing and center-to-center spacing are 1.0 m, 2.0 m and 3.0 m, respectively.

Key words: landslide, rainfall, landslide mitigation, numerical simulation, theoretical analysis

中图分类号:

TU42

常晓军, 葛伟亚, 于洋, 赵宇, 叶龙珍, 张泰丽, 魏振磊. 福建省永泰县东门旗山滑坡诱发机理与防治措施[J]. 吉林大学学报(地球科学版), 2019, 49(4): 1063-1072.

Chang Xiaojun, Ge Weiya, Yu Yang, Zhao Yu, Ye Longzhen, Zhang Taili, Wei Zhenlei. Mechanism and Mitigation Measures of Qishan Landslide of Yongtai in Fujian Province[J]. Journal of Jilin University(Earth Science Edition), 2019, 49(4): 1063-1072.

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福建省永泰县东门旗山滑坡诱发机理与防治措施

Mechanism and Mitigation Measures of Qishan Landslide of Yongtai in Fujian Province

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