CAJ | 학술논문

解决边坡稳定性问题的关键是确定最危险滑动面(潜在最危险滑动面)和边坡的稳定系数.将蚁群算法用于求解土质的边坡稳定性问题.针对蚁群算法在演化过程中存在停滞和过早收敛的现象,对基本蚁群算法的结构形式和蚂蚁转移概率的计算进行了改进.构建了一种新的蚁群算法--元胞蚁群算法(CA-AA).在文武坡边坡稳定性判别中,利用CA-AA法计算得到其稳定系数为1.37,略小于<岩土工程勘察规范>不平衡推力法计算值,弥补了不平衡推力法的不足,更接近实际.算例结果表明:元胞蚁群算法(CA-AA)总能搜索到问题的全局最优解,且搜索效率也有较大的提高.
해결변파은정성문제적관건시학정최위험활동면(잠재최위험활동면)화변파적은정계수.장의군산법용우구해토질적변파은정성문제.침대의군산법재연화과정중존재정체화과조수렴적현상,대기본의군산법적결구형식화마의전이개솔적계산진행료개진.구건료일충신적의군산법--원포의군산법(CA-AA).재문무파변파은정성판별중,이용CA-AA법계산득도기은정계수위1.37,략소우<암토공정감찰규범>불평형추역법계산치,미보료불평형추역법적불족,경접근실제.산례결과표명:원포의군산법(CA-AA)총능수색도문제적전국최우해,차수색효솔야유교대적제고.
How to ascertain the sliding surface and the factor of safety is the key problem of slope stability, the method of ant colony algorithm(CA)fitting was used to solve the stability analysis of soil slopes, and the structure of CA and the transfer probability formula were modified.An adaptive operator was introduced to change the selection mechanism of ants and prevent the phenomena of stagnation and premature in the evolutionary process.Thus,a new ant colony algorithm,called adaptive ant colony algorithm (CA-AA),was presented.The stability coefficient of Wenwu slope is 1.37, which is less than the value of imbalance push method recommended by "The Rock Soil Engineering Reconnaissance Specification", and its defect is overcomed, and the new method applied to soil slope stability evaluation shows that it can exactly find out the global optimal solution and the search efficiency is higher.