从施工地质灾害看地质勘察设计和施工责任划分  

INSIGHTS OF GEOLOGICAL INVESTIGATION DESIGN AND CONSTRUCTION RESPONSIBILITY DIVISION FROM CONSTRUCTION TRIGGERED GEOHAZARD

作　　者：尚彦军[1,2] 李坤[1] 王开洋[1,3,4] 李严严 杨朋[1,4] SHANG Yanjun;LI Kun;WANG Kaiyang;LI Yanyan;YANG Peng(Key laboratory of Shale Gas and Geoengineering,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029;Xinjiang Institute of Engineering,Urumqi 830023;Traffic Planning and Design Institute of Yunnan Province,Kunming 650041;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院地质与地球物理研究所,中国科学院页岩气与地质工程重点实验室,北京100029 [2]新疆工程学院,乌鲁木齐830023 [3]云南省交通规划设计研究院,昆明650041 [4]中国科学院大学,北京100049

出　　处：《工程地质学报》2018年第2期374-383,共10页Journal of Engineering Geology

基　　金：国家自然基金项目(41372324;41772320)资助

摘　　要：施工期间发生地质灾害常导致何种因素引发的争论。对我国北方某高速公路深路堑边坡开挖到坡顶时发生整体滑坡的案例剖析,发现该边坡是多层云母片岩构成软弱夹层的顺向坡。通过对该区工程地质调查和资料分析,认为构成边坡体的多个软弱夹层及施工期间遭遇强降水是影响该边坡稳定性的主要自然原因。对本区复杂地质条件认识不足,勘察、设计和施工过程中预防、治理对策力度不够也是造成滑坡发生的人为原因。采用层次分析法、多因素关系矩阵法、德尔菲法(专家打分法)等3种方法,计算出了自然和人为6种因素作用因子权重值,给出了基于科学计算的因素作用结果分析和责任权重划分。本文研究结果可望为其他地质条件类似工程因子筛选和责任划分,提供一定参考。The argument about the cause of geological disaster(natural or man-made)induced by excavation unloading during the construction period is raised.A case study of the landslide occurred on the slope of an expressway in north China is conducted.The slope is a dip slope composed of the weak interbedded mica schist.Through the engineering geological survey and data analysis,it is concluded that the multiple weak interlayers which constitute the slope body and the strong precipitation encountered during the construction are the main natural reasons that affect the slope stability.Insufficient understanding of the complex geological conditions,and inadequate prevention and control measures during the investigation,design and construction process are the main man￣made reasons.The weights of six parameters including natural and human factors are calculated using Analytic Hierarchy Process(AHP),Multi-factor interaction matrix method and Delphi method,and then the responsibility is divided.The results of this study are expected to provide some references for the selection factors of similar engineering and the division of responsibilities.

关 键 词：云母片岩 顺向坡 滑坡 因子 权重 

分 类 号：P642.22[天文地球—工程地质学]