水电工程环境边坡危岩体稳定性综合评分方法  

Comprehensive Scoring Method for Evaluating the Stability of Potentiallly Hazardous Rock Masses of Surrounding Slopes in Hydropower Projects

作　　者：田雄[1] 张世殊[1] 黎昌有[1] 袁国庆[1] 

机构地区：[1]中国电建集团成都勘测设计研究院有限公司,成都610072

出　　处：《长江科学院院报》2016年第1期38-42,共5页Journal of Changjiang River Scientific Research Institute

摘　　要：环境边坡危岩体关系到水电工程施工的安全和运行的可靠性,是最为突出的边坡问题之一。根据现场第一手资料,选取结构面特征、岩性、地形坡度、岩体风化与卸荷程度、地下水和地表水作为危岩体稳定性评价的关键性因素,结合其对危岩体稳定性的"贡献"程度,赋予相应的分值,另给予相关特殊因素判断分,从而建立了一套简单易行的评价危岩体稳定性的综合评分系统。之后选取大渡河双江口水电站左岸坝肩环境边坡的危岩体为样本,通过综合评分系统结果与极限平衡法定量计算结果的比较,验证了该综合评分系统的正确性。The stability of potentiallly hazardous rock mass（ PHRM） of surrounding slope is one of the prominent problems which is closely related to construction security and running reliability. In this paper,we selected the key factors such as characteristics of structural interface,rock types,slope gradient,weathering and unloading intensity of rocks,groundwater,and surface water which effect the stability of PHRM. According to the influence degree,we give different scores to each factor,thereby establish a set of comprehensive scoring method which can quickly quantify and semi-quantify the classification of the stability of PHRM. Then,PHRM of the slope at the left bank abutment in Shuangjiangkou hydropower station of Dadu River was taken as an sample,we compared calculated data between the comprehensive scoring method and limit equilibrium method,which verified the correctness of the comprehensive scoring method.

关 键 词：水电工程 环境边坡 危岩体 稳定性评价 综合评分方法 

分 类 号：TV223[水利工程—水工结构工程]