吸力值 meaning in English

pf-value

Based on the knowledge of characteristic of unsaturated soils . the law of suction change with moisture content and density is got from suction experiment , which revealed that the matrix suction changes obviously with density especially in low moisture content , and with the same moisture content , if the density is gradually added , the value of matrix suction first is lowed , then added and finally lowed , this phenomenon is probed into in this paper
基于对非饱和土特性的认识，进行了基质吸力的试验研究，得到了基质吸力随含水量和密度的变化规律，试验揭示出：基质吸力随密度的变化是明显的，含水量越低，这一趋势越明显，在含水量相同的情况下，当砂土从疏松状态逐级变密时，吸力值经历变小、变大、又变小的过程，文中对造成这一现象的原因作了初步分析。