裂隙闭合 meaning in English

closing of fracture

Stress decreases rock seepage character in elastic stage , while erosion damage increases it . under some conditions , the influence of stress to seepage may be shielded by erosion damage . obtaining the distribution of seepage field , tunnel external water pressure can be calculated in two ways : 1
高应力使裂隙闭合，一般是降低岩体的渗透性，而水化水力损伤则增加岩体渗透性，在腐蚀损伤发育到一定阶段，应力对渗透性的这种影响则可能会被屏蔽。