管道排泄系统的存在使边坡具有良好的渗透性，能有效减小坡体中的渗透力和潜在滑面的孔隙水压力；
When GPDS developed in DCS, the permeability of soil mass would become dramatically larger, and the seepage force of groundwater and pore water pressure on sliding surface would reduce;
管道排泄系统的存在使边坡具有良好的渗透性，能有效减小坡体中的渗透力和潜在滑面的孔隙水压力；
When GPDS developed in DCS, the permeability of soil mass would become dramatically larger, and the seepage force of groundwater and pore water pressure on sliding surface would reduce;
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