【作者】 陈新民； 严三保； 阎长虹； 罗国煜；

【Author】 Chen Xinmin

【机构】 南京工业大学地质工程研究所； 南京大学地球科学系；

【摘要】 大型土木工程的成功建设对岩土参数的精度和可靠性要求越来越高,由于岩土体形成过程和影响因素的复杂性和多样性,以及岩土性质对其所赋存环境的强烈依赖性,使得岩土性质的现场原位测试技术和方法在岩土工程,特别是大型岩土工程的勘察和设计中具有越来越重要的地位和作用。本文结合苏州-南通(苏通)长江公路大桥建设的实际,运用扁铲侧胀仪(DMI),对桥梁地基的有关岩土参数进行了现场试验研究。通过与常规室内外试验结果的对比分析发现,这种试验不仅具有快速、简便、经济、重复性好的特点,而且其所提高的岩土信息丰富、结果可靠。更多还原

【Abstract】 The successful construction of large-scale geotechnical project is largely determined by the accuracy and reliability of the geotechnical parameters due to the complex and diversity of soil formation process and its influencing factors and the fact that properties of soil heavily rely on the environment which soil exists.Hence the technique and method of in-situ test have been becoming an increasing important part in the geotechnical investigation and design,especially for the large-scale projects such as bridge,tunnel etc.In this Paper,an in-situ instrument,flat dilameter test(DMT),is used in the geotechnical investigation of a bridge in order to provide the necessary foundation design data.It is found that the DMT is not only a quick,simple,economical and highly reproducible in-situ test device,but also can give a lot of reliable geotechnical parameters comparing with the data obtained by the ordinary laboratory test and in-situ exploration.更多还原