盐分对砂砾石盐渍土渠基稳定性影响的试验研究

摘要

The salinity in the soil includes the solubbe salt, mediumsoluble salt and undissolved salt. The soluble salt and medium soluble salt can easily escape from the soil under the conditon of water current, which can cause the soil texture deterioration and make canal foundation unstable. By means of test study,it is defined that the salinity is one of the important factors of ef fect on stability of canal foundation of the saline gravel soil.%盐分以易溶盐、中溶盐和难溶盐形式存在于土体中，其中易溶盐、中溶盐在水流作用下易于迁出土体，使土体结构发生破坏，造成土体的溶陷，使防渗或不防渗的渠基失稳。通过试验研究，确认盐分是影响砂砾石盐渍土渠基稳定性的重要因素之一。