论文部分内容阅读
为提高边坡安全系数的计算精度,降低其计算复杂度并考虑孔隙水压力的影响,对应用较为广泛的极限平衡理论——瑞典条分法进行了优化和改进,即考虑土体孔隙水压力的作用,得到其优化模型,然后转化加法为积分,得到其积分计算模型.在此基础上,通过实例对比验证了考虑孔隙水压力的积分计算模型的优越性和实用性,并导出边坡安全系数计算的通用计算模型.结果表明:积分计算模型是通用计算模型的一个特例,在五个假定的前提下,无需进行土条划分和提前预估滑动面的形式,并考虑了孔隙水压力,解决了边坡安全系数计算精度低且复杂度高的问题;通用计算模型在四个假定的前提下,进一步解决了“异形坡面”边坡的安全系数计算;这些研究内容为边坡稳定性分析提供了一定的参考.
In order to improve the calculation accuracy of slope safety factor, reduce its computational complexity and consider the influence of pore water pressure, a more generalized limit equilibrium theory - Sweden piecewise method was optimized and improved, that is to consider the soil pore water pressure , Then get the optimization model, and then transform the addition into integral to get the integral calculation model.On the basis of this, the superiority and practicability of the integral calculation model considering the pore water pressure are verified through examples, and the slope safety The results show that the integral calculation model is a special case of the general calculation model. Under the assumption of five assumptions, it is not necessary to divide the soil strips and predict the form of the sliding surface in advance, and the pore water pressure, Which solves the problem of low calculation accuracy and high complexity of safety factor of slope; the general calculation model further solves the calculation of safety factor of “irregular slope” under the assumption of four assumptions; the research contents include slope Stability analysis provides a reference.