【作者】 蔡新滨； 孙进忠； 陈祥；

【Author】 CAI Xin-bin, SUN Jin-zhong, CHEN Xiang (China Geo-Engineering Corporation, Beijing 100080, China; China University of Geosciences, Beijing 100083, China)

【机构】 中国地质工程集团公司； 中国地质大学；

【摘要】 工程实践中大量应用的是工程岩土体的静力学参数,取得这些参数的最直接方法就是工程测试。然而,静力学试验测试往往是设备笨重、耗时耗力、成本昂贵。基于波动理论的动力学测试方法设备轻便、实施灵活、成本较小,因此岩土体动力学参数的获得往往要容易得多。综合应用波动测试和静力学测试结果,将给工程建设带来可观的技术经济效益。针对波动测试方法中走时测定误差的影响,提出了原位岩体波速测试的震相拟合方法和岩块波速测定中震相识别的若干判据和震相走时修正的原则。在综合比较动、静测试参数的基础上,讨论了2种测试方法的特点及动静力学参数的综合应用问题。更多还原

【Abstract】 The static parameters of rock and soil mass are absolutely necessary for engineering practice. Static mechanical test is a direct approach to obtain these parameters, but it is often difficult because of its heavy equipment, long duration, and high expense. The dynamic test, based on the theory of elastic wave propagation, is much easier than the static test due to the light equipment, flexible methodology, and smaller expense. Comprehensive utilization of the static and dynamic parameters of rock and soil mass will bring engineering considerably technical and economic benefits. In order to overcome the influence of the error in the measurement of travel time of waves, the fitting analysis of seismic phase in wave velocity test is conducted in-situ, and a series of rules and criteria to revise the travel time measured on rock and soil specimens are put forward. The characteristics of static test and dynamic test and their synthetic utilization problems are also discussed.更多还原