摘要
对于饱和砂土液化判别,目前规范要求以标准贯入试验为主,以静力触探为辅,有经验地区可采用剪切波速测试,但就目前的每种判别方法都有一定的局限性。在实际工作中采用综合评价的方法,就能减少单一评价方法的局限性。综合应用标准贯入试验法、静力触探试验法和剪切波速测试法,并对各种判别方法的判别结果进一步分析,便可综合评价场地饱和砂土的液化趋势。实例表明,综合应用各种液化判别方法进行综合评价,提高了评价结果的准确性。
To identify saturated sand liquefaction, according to present regulations standard penetration test is used and complemented with static cone test, while shear wave velocity test can be used in areas where have experienced. But at present, each of above mentioned identifying method has its limitation. Integrated assessments are used in practices, thus can reduce limitation of single method assessment. Results of integrated utilization of standard penetration test, static cone test and shear wave velocity test have to be analyzed, thus can comprehensively assess site saturated sand liquefaction trend. Instances demonstrated that the comprehensive assessment can improve result＇s accuracy.
出处
《中国煤田地质》
2007年第5期54-57,共4页
Coal Geology of China
关键词
饱和砂土
液化判别
标准贯入
静力触探
剪切波速
综合评价
saturated sand
liquefaction identifying
standard penetration test
static cone test
shear wave velocity
comprehensive assessment
