【摘要】 研究了在地震作用下,地下水位、锚杆极限抗拔力、土体的内摩擦角及墙体嵌入深度对地下连续墙稳定性的影响.土压力和水压力以及墙体的惯性力利用"一般楔体地震分析法"计算.墙体的稳定性利用拟静力法,从抗倾覆安全系数和抗滑移安全系数的角度分析.实例计算结果显示:随着地震水平加速度系数的增加,其稳定性逐渐降低;非开挖侧地下水位高度、土体内摩擦角、锚杆极限抗拔力以及墙体嵌入深度对地下连续墙的稳定性也有着重要影响;此外,土体的内摩擦角对地下连续墙的抗滑移安全系数的影响比抗倾覆安全系数的影响大,而锚杆极限抗拔力对墙体抗倾覆安全系数的影响相对比较大.更多还原

【Abstract】 The effects of the water table,the ultimate pullout force of the rockbolt,the soil friction angle,and the penetration depth of the diaphragm wall on the stability of the wall under seismic conditions were investigated.The earth pressure,the groundwater pressure and the inertial force of the wall were calculated using "general wedge earthquake analysis".The pseudo-static method was used for analyzing the stability of the wall from the perspective of the safety factors against overturning and sliding.The calculated results show that the stability of the diaphragm wall decreases as the horizontal seismic acceleration coefficient increases;the water table on the non-excavation side,the soil friction angle,the ultimate pullout force of the rockbolt,and the penetration depth of the diaphragm wall play an important role on the stability;moreover,the soil friction angle has greater effect on the safety factor against sliding than on the safety factor against overturning,but the ultimate pullout force of the rockbolt has greater effect on the safety factor against overturning than on the safety factor against sliding.更多还原