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为了研究降雨强度对边坡渗流场及安全系数的影响,基于非饱和渗流及抗剪强度理论对边坡在相同降雨量、变雨强条件下的边坡渗流场进行了研究。研究表明:(1)前期降雨强度小更利于雨水的后续入渗,从而使边坡表层负孔隙水压力上升速率及幅度更大;(2)边坡安全系数的降低幅度与边坡渗流场密切相关,边坡体内负孔隙水压力越大边坡安全系数越大,反之则越小。
In order to study the influence of rainfall intensity on the seepage field and safety factor of slope, the seepage field of slope under the same rainfall and changing rainfall conditions was studied based on the theory of unsaturated seepage and shear strength. The results show that: (1) The earlier rainfall intensity is more conducive to the subsequent infiltration of rainwater so that the rate and amplitude of negative pore water pressure increase in the slope surface is greater; (2) The reduction of slope safety factor is close to the slope seepage field Related, the greater the negative pore water pressure in the slope, the greater the slope safety factor, and vice versa.