高地应力区水电工程围岩分类法系统研究  

A CLASSIFICATION METHOD OF SURROUNDING ROCK MASS IN HYDROPOWER PROJECT IN HIGH GEOSTRESS AREA

作　　者：申艳军[1,2] 徐光黎[2] 宋胜武[3] 李志鹏[2] 冯学敏[3] 董家兴[4] 

机构地区：[1]西安科技大学建筑与土木工程学院,陕西西安710054 [2]中国地质大学岩土钻掘与防护教育部工程研究中心,湖北武汉430074 [3]中国电建集团成都勘测设计研究院有限公司,四川成都610072 [4]昆明理工大学电力工程学院,云南昆明650500

出　　处：《岩石力学与工程学报》2014年第11期2267-2275,共9页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金资助项目(41302228);陕西省重点科技创新团队项目(2014KCT–30);中国博士后科学基金面上项目(2014T70931)

摘　　要：高地应力区大型水电硐室围岩工程地质特征较一般地应力状态下差异很大,相应围岩分类评价思路及体系应有所差异,但目前水电工程围岩分类法(简称HC法)对评价高地应力区尚存在诸多缺陷,造成评价结果与真实情况存在一定差距。以高地应力区HC法合理应用为研究目的,首先,对该方法存在诸多问题全面分析,并提出相应修正建议;其次,通过广泛搜集、整理目前大型水电工程地应力状况资料,对地应力分类评价指标及标准提出新的建议;而后,针对HC法对高地应力区的评价思路与方法进行优化,提出相应优化方法;最后,以在建的猴子岩水电站主厂房为分析实例,采用对比分析方法印证该优化方法的适宜性。该研究方法对于推动HC法满足高地应力区地下硐室围岩质量评价具有一定参考意义。The engineering geological characteristics of the surrounding rock of large hydropower caverns in high geostress areas are very different from those in the normal geostress area. So the rock classification and evaluation system should be different. However,the hydropower classification（HC） method of rock mass for evaluating the rocks in high geostress areas has still many defects,and has caused some deviations between the evaluated results and the real situations. The purpose of this paper is to correct and optimize the HC method in high geostress areas. Firstly,the problems existed in the HC method were analyzed comprehensively,and some appropriate amendments were proposed. Secondly,some new proposals for ground stress evaluation and classification criteria were proposed through extensive collecting and collating of the information of high geostress of the current large-scale hydropower projects. Then,the evaluation ideas and methods of HC for high geostress areas were optimized systematically and the corresponding methods of optimization were proposed. Finally,the plant of Houziyan hydropower station under construction was analyzed,and the comparative analysis was made to confirm the suitability of this optimization method.

关 键 词：岩石力学 高地应力区 HC法 优化建议 猴子岩水电站 

分 类 号：TU45[建筑科学—岩土工程]