天然砂砾路用承载力分析

Bearing Capacity of Natural Grit Road

通过对天然砂砾不同天然级配和设计密实级配进行击实试验,分析了不同级配组成最大干密度和最佳含水量的主要影响因素。在最大干密度和最佳含水量条件下,对天然级配和密实级配的天然砂砾进行D×H=308 mm×290 mm大试件回弹模量试验,分析了天然砂砾不同级配组成的路用承载力。

Through the implement of compaction tests of natural grit with different natural gradation and design dense gradation, the primary factors influencing maximum dry density and optimum water content with different gradation composition are analyzed. Under eonditions of maximum dry density and optimum water content, the resilient modulus test of D × H = 308 mm × 290 mm large test sample has been carried out for natural grit of natural gradation and dense gradation, then the bearing capacity of natural grit road with different gradation composition is analyzed.