CAJ | 학술논문

应用随机介质理论计算隧道开挖引起的地表移动是目前广泛使用的方法,在关键参数的取值上反分析是最有效的手段.在双洞隧道的反分析问题上,通常认为2个隧洞的参数相同而采用双参数反分析,但这种做法不利于反映实际情况,为此文中提出为每个隧洞引入各自计算参数进行多参数反分析.实际算例表明,双洞4参数的分析结果优于双参数的分析结果.但是,4参数反分析问题复杂性大大提高,传统的模式搜索方法不能很好地搜索到最优参数.为克服该问题,采用单纯形混合加速遗传算法作为双洞隧道4参数反分析问题的求解方法.实际的应用及测试表明,该方法能高精度的、稳定的搜索出全局最优参数.
응용수궤개질이론계산수도개알인기적지표이동시목전엄범사용적방법,재관건삼수적취치상반분석시최유효적수단.재쌍동수도적반분석문제상,통상인위2개수동적삼수상동이채용쌍삼수반분석,단저충주법불리우반영실제정황,위차문중제출위매개수동인입각자계산삼수진행다삼수반분석.실제산례표명,쌍동4삼수적분석결과우우쌍삼수적분석결과.단시,4삼수반분석문제복잡성대대제고,전통적모식수색방법불능흔호지수색도최우삼수.위극복해문제,채용단순형혼합가속유전산법작위쌍동수도4삼수반분석문제적구해방법.실제적응용급측시표명,해방법능고정도적、은정적수색출전국최우삼수.
Stochastic medium method(SMM) is widely used in the field of surface movement induced by tunneling. And back analysis is the most useful method for determining key parameters. In the problem of twin tunnel back analysis the parameters of each tunnel is supposed same, so the problem can be solved for dual-parameters. But this way isn't access truthfulness. For improvement, multiparameter back analysis method is presented, in which each tunnel should have different parameters. The case study shows that the back analysis result of 4 parameters is better than the dual-parameters. But 4 parameters back-analysis of twin tunnel is much more complex so that traditional pattern search method can't solve the problem well. So simplex hybrid accelerating genetic algorithm(SHAGA) is introduced for solving this problem. The test of application shows that SHAGA can solve it accurately and stably.