基于模糊数学的黄台隧道深埋段岩爆预测  

Analysis of rockburst tendency in deep buried section of Huangtai tunnel based on fuzzy mathematics

作　　者：施建俊[1,2] 郭书成 张伟 SHI Jian-jun;GUO Shu-cheng;ZHANG Wei(School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing Key Laboratory of Urban Underground Space Engineering,Beijing 100083,China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]城市地下空间工程北京市重点实验室,北京100083

出　　处：《工程爆破》2023年第3期71-79,146,共10页Engineering Blasting

基　　金：国家自然科学基金资助项目(51208036);中央高校基本科研业务费专项基金资助项目(FRF-TP-15-041A3)。

摘　　要：为了研究黄台隧道围岩岩爆的倾向性,对该隧道3个不同埋深测点处的岩样开展室内岩石力学试验,并根据其全应力-应变曲线分析试样基本力学参数;结合室内试验结果,运用陶振宇判据、冲击能量指数、弹性能量指数、岩石脆性系数、能量储耗指标5种不同岩爆评价指标分别对岩爆倾向性进行单一指标评价,但预测结果具有一定离散性;为综合不同评价因素,引入模糊数学多因素综合评价方法,对各单项指标评价结果进行综合评判。结果表明:黄台隧道不同埋深处均具有发生岩爆的可能性,总体具有发生弱岩爆和中等岩爆的倾向。该研究可对黄台隧道开挖施工和岩爆防治提供参考依据。In order to study the tendency of rockburst in the surrounding rock of Huangtai tunnel,carry out indoor rock mechanics tests on rock samples from different burial depths,and analyze the basic mechanical parameters of the samples according to their full stress-strain curves.Combined with the indoor test results,five different rockburst evaluation indexes including Tao Zhen-yu criterion,impact energy index,elastic energy index,rock brittleness coefficient and energy storage index are used to evaluate the rockburst tendency,but the prediction results are discrete.In order to synthesize different evaluation factors,the fuzzy mathematics multi factor comprehensive evaluation method is introduced to comprehensively evaluate the evaluation results of each single index.The results show that the Huangtai tunnel has the possibility of rockburst at different buried depths.The whole tunnel has the possibility of weak rock burst and medium rock burst.The study can provide a reference basis for the excavation construction and rock burst prevention of Huangtai tunnel.

关 键 词：岩爆 模糊数学 岩爆倾向性 评判指标 

分 类 号：TU452[建筑科学—岩土工程] TD235[建筑科学—土工工程]