摘要
获取准确的土体力学参数,是工程勘察的主要目的之一.原位测试技术能够在尽可能避免对土体结构造成扰动、不释放土中应力的条件下,获取土体的各项参数,且效率和成果精度高,在岩土工程领域应用前景广阔,自钻式旁压试验是其中的佼佼者.依托孟加拉帕德玛公铁两用大桥工程勘察项目,引进了国外先进的原位测试设备,在实际工程中通过大量应用和设备、技术改进,为项目获取了准确可靠的土体参数,并在工程实践中推广和应用自钻式旁压试验起到了积极推动作用.
Abstract
It is the main purpose to obtain accurate mechanical parameters and appraise the mechanical properties of the soil and to provide reliable basis in the engineering investigation planning.The in-situ testing technology can obtain various parameters of the soil without releasing the pressure in the soil and disturbance to the soil structure.It has a high efficiency and precision,so it is increasingly popular and has a wide application in the geotechnical field.The self-boring pressurementer test is one of the most widely tests.Based on the investigation project of the Padma Multipurpose Bridge in Bangladesh,the accurate and re-liable soil parameters for the project by the introduction and improvements of the foreign advanced in-situ testing instruments are obtained.These efforts made a positive contribution to the promotion and application of the self-boring pressuremeter test.
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