静力触探判别砂土液化 English Version
Evaluation of the Liquefaction of Sand by Static Cone Penetration Test
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摘要: 为了利用静力触探评价砂土液化势的实际应用,在唐山不同地震烈度地区,进行了一百多次试验。试验结果用统计方法的判别函数进行了分析。在统计中考虑了地下水位、砂层埋深、上复粘性土层厚度、震中距以及贯入阻力五个因素。提出了一个用静力触探判别砂土液化势的实用方法。本法的有效性用海城地震区的试验资料进一步得到证明。Abstract: In order to investigate the practical use for evaluating the liquefaction potential of sand with static cone pe'netration, tests were performed at more than one hundred locations of various seismic intensities in Tangshan district. The test results were analysed by statistical method of discrimination founction.In which the effects of the depth of groundwater level, the depth of sand layer, the thickness of cohesive overlaid soil, the epicentral distance and the penetration resistance had been taken into consideration. A simple method was thus given for evaluating the liquefaction potential of sand by static cone penetration tests.The validity of this method has been further confirmed by the test results of Haicheng earthquake area.
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