CAJ | 학술논문

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。
고지응력구대형수전동실위암공정지질특정교일반지응력상태하차이흔대，상응위암분류평개사로급체계응유소차이，단목전수전공정위암분류법(간칭HC법)대평개고지응력구상존재제다결함，조성평개결과여진실정황존재일정차거。이고지응력구 HC 법합리응용위연구목적，수선，대해방법존재제다문제전면분석，병제출상응수정건의；기차，통과엄범수집、정리목전대형수전공정지응력상황자료，대지응력분류평개지표급표준제출신적건의；이후，침대 HC 법대고지응력구적평개사로여방법진행우화，제출상응우화방법；최후，이재건적후자암수전참주엄방위분석실례，채용대비분석방법인증해우화방법적괄의성。해연구방법대우추동 HC 법만족고지응력구지하동실위암질량평개구유일정삼고의의。
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.