碎石桩复合地基分层承载力的测试与确定

碎石桩加固效果检验往往是采用传统的静载荷试验,由于该试验的影响深度有限,所得结果尚不能充分表明碎石桩的加固效果.通过桩体的挤密阻力测试,可知桩体在各分层中的挤密效果,得到碎石桩的分层承载力,进而可对碎石桩加固效果作出全面评价.

TESTING AND DETERMINATION OF THE BEARING CAPACITY BY LAYERS FOR THE CRAVEL PILE COMPOSITE FOUNDATIONS

Usually, the traditional static plate load test is adopted to examine the strengthening effect of gravel piles. Owing to the limitation of the depth of influence of the test . the result obtained cannot suffi-ciently express the strengthening effect of the gravel pile . By the testing of the compaction resistance, the compaction effects of the pile body by layers are known. Thus, the bearing capacities of gravel pile by lay-ers are obained. Thence, a comprehensive assessment of the strengthening effect of the gravel pile can be made.