水泥土搅拌桩实体强度检测方法研究

Test Method for Physical Strength of Cement-soil Pixing Piles

对水泥土搅拌桩的实体强度检测进行探讨。指出当前水泥土搅拌桩抗压强度的实体质量检测与室内立方体标准试件强度试验,存在试样的尺寸不统一、不同尺寸试件之间的强度关系不清楚等问题,缺乏使用依据。通过试验研究,分析了不同尺寸和形状的水泥土无侧限抗压强度之间的关系,指出使用圆柱体芯样试验结果直接进行强度评定是可行的,同时给出了获取芯样过程中需要注意的关键问题。

The specific problem of physical strength testing of cement-soil mixing piles is discussed.It is pointed out that the physical quality test of the compressive strength of cement-soil mixing piles and the strength test of indoor cubic standard specimens are not uniform.The strength relationship between specimens of different sizes is unclear and lacks the basis for use.The relationship between the unconfined compressive strength of cement-soil with different sizes and shapes is analyzed through experimental research.It is feasibe to directly evaluate the strength using the test results with cylindrical core samples,and the key issues need attention during the process of obtaining core samples is pointed out also,all of which discussed maybe contribute practical and guiding significance.