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基于改进后的坡体地下水压分布假设,采用极限平衡理论,推导了坡顶荷载、地震荷载、锚固荷载、临坡河流水压、坡体地下水压和坡趾淘蚀作用下临河岩石边坡滑移稳定系数的表达式,绘制了滑移稳定系数与各个影响因素之间的关系图。分析表明:改进后的水压分布假设是合理的;水的作用是影响边坡抗滑稳定性的重要因素,临河水位升高、地下水位降低对提高边坡抗滑稳定性有积极作用;滑面出流缝堵塞与否对边坡抗滑稳定性的影响较为显著,一般情况下,出流缝堵塞对临河岩石边坡抗滑稳定性不利,只有当Hr>Hw时,出流缝堵塞时边坡滑移系数才大于未堵塞时边坡滑移稳定系数。
Based on the improved hypothesis of groundwater pressure distribution in the slope, the limit equilibrium theory is used to deduce the influence of slope load, seismic load, anchorage load, water pressure on the slope slope, groundwater pressure on the slope, The expression of the stability coefficient is plotted, and the relationship between the sliding stability coefficient and each influencing factor is plotted. The analysis shows that the hypothesis of improved water pressure distribution is reasonable. The effect of water is an important factor that affects the stability of slope. The water level of waterfront increases and the water table reduces, which plays a positive role in improving the stability of slope. The clogging of the outflow seam has a significant impact on the stability of the slope. Under normal circumstances, the blockage of the outflow seam is unfavorable to the stability of the rock slope of Linhe. Only when Hr> Hw, The slope slip coefficient is larger than the slope slip stability factor when not blocked.