中、英、美标准中土的力学性质试验对比研究  

Comparative Study on Tests of Mechanical Properties of Soil Specified in Chinese, British and American Standards

作　　者：张旭光[1] 徐小明[1] 孟令福[1] Zhang Xuguang;Xu Xiaoming;Meng Lingfu(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《港工技术》2020年第S01期152-156,共5页Port Engineering Technology

摘　　要：从仪器规格、适用范围、测量精度、加载速率和终止条件等方面,对中、英、美标准中土的力学性质试验展开对比研究,可以得出:在试验原理和适用范围上三种规范基本相同,无侧限抗压强度、直剪慢剪和三轴UU试验依据三种规范得到的试验数据可以通用;而三轴CU试验、三轴CD试验和固结试验等在多方面存在差异,但是通过对比发现,在进行试验时,选取同时满足三种规范的试验参数,使用国内的仪器和试验方法,可满足不太熟悉的英标和美标,达到化生疏生为熟悉的效果。本文研究的方法和结论可为后期英美标土工试验开展提供参考。The tests of mechanical properties of soils specified in Chinese, British and American standards are compared and studied from the aspects of instrument specification, applicable range, measuring accuracy, loading rate and termination condition. The research results show that the test principle and applicable range of the above three standards are basically same, thus the data on the unconfined compressive strength, direct shear/slow shear and tri-axial UU test can be employed universally. But the trial-axial CU tests, tri-axial CD tests and consolidation tests are different in the three standards. It is also found that the test parameters that satisfy the three standards simultaneously can be selected to support Chinese instruments and methods. The test results not only satisfy the requirements of British and American standards, but also improve the knowledge of the above two standards. The recommended methods and conclusions can serve as a reference for further geotechnical tests made according to British and American standard.

关 键 词：中、英、美标准 力学性质试验 试验参数 对比研究 

分 类 号：TU411.3[建筑科学—岩土工程]