标准贯入试验和双桥静力触探试验在饱和吹填砂液化判别中的对比分析  

Comparative Analysis of Standard Penetration Test and Double-Bridge Static Cone Penetration Test in the Liquefaction Evaluation of Saturated Hydraulic Fill Sand

作　　者：罗堂 何超亮 危雪梅 徐媛媛[2,3] 

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430071 [2]福建省建筑科学研究院,福建福州350025 [3]福建省绿色建筑技术重点实验室,福建福州350025 [4]福建省冶金工业设计院有限公司,福建福州350005

出　　处：《福建建设科技》2018年第2期24-26,共3页Fujian Construction Science & Technology

摘　　要：通过标准贯入试验和双桥静力触探试验,对某工程场地饱和吹填砂进行液化判别,结果表明双桥静力触探试验液化判别计算所得液化指数与锥尖阻力基准值取值有关,且总体高于标准贯入试验计算所得液化指数,双桥静力触探试验液化判别结果更偏于安全;结合吹填砂的特点,建议饱和吹填砂液化判别采用标准贯入试验与静力触探试验相结合的综合评价方法。The liquefaction of saturated hydraulic fill sand in a project site was evaluated by standard penetration test and double-bridge static cone penetration test.The results showed that the liquefaction index calculated by liquefaction evaluation of double-bridge static cone penetration test was related to the reference value of cone tip resistance and higher than that of the standard penetration test in general.The result of liquefaction evaluation of double-bridge static cone penetration test was safer relatively.Considering the characteristics of hydraulic fill sand,a comprehensive evaluation method combining standard penetration test and double-bridge static cone penetration test in the liquefaction evaluation of saturated hydraulic fill sand was proposed.

关 键 词：标准贯入试验 双桥静力触探试验 吹填砂 液化判别 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]