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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.
The effect of groundwater level, the ultimate pull-out force of anchor, the internal friction angle of soil and the embedding depth of wall on the stability of diaphragm wall are studied.The earth pressure and water pressure, as well as the inertia force of wall, “General Wedge Seismic Analysis” is calculated.The stability of the wall is analyzed by pseudo-static method from the perspectives of anti-overturning safety factor and anti-slip safety factor.Example calculation results show that with the increase of horizontal acceleration coefficient , And its stability is gradually reduced. The height of underground water table, the friction angle of soil body, the ultimate pull-out resistance of rock bolt and the embedding depth of wall also have an important influence on the stability of diaphragm wall. In addition, The effect of angle on the anti-sliding safety factor of diaphragm wall is greater than the anti-overturning safety factor, while the influence of anchor ultimate anti-pull force on the anti-overturning safety factor of the diaphragm wall is relatively large.