波速测试在场地勘察中的应用研究

Application Research of Wave Velocity Testing in Site Investigation

波速测试是场地勘察中重要的原位测试实验,是判断场地等级和地基承载力的重要指标。根据波速测试的原理、计算方法、试验设备和波速测试值判断场地等级的标准。以SICOMINES铜钴矿区场地勘察为例,利用现场实测波速值评价场地等级,结果显示:建筑场地类别为Ⅱ类,覆盖层厚度大于5 m。将波速试验成果与估算地层波速值进行对比,发现波速试验值和估算值较接近,验证了波速测试的正确性。可为相似的工程提供参考。

The wave velocity test is an important in-situ test in site investigation and an important indicator for judging the site grade and foundation bearing capacity. The criteria for the site level are determined based on the principle of the wave velocity test, the calculation method, the test equipment, and the wave velocity test value. Taking the site survey of SICOMINES copper-cobalt mining area as an example, the site level is evaluated by the measured wave velocity value. The results show that the building site category is Class II and the cover layer thickness is greater than 5 m. Comparing the wave velocity test results with the estimated formation wave velocity values, it is found that the wave velocity test values are close to the estimated values, and the correctness of the wave velocity test is verified. Can provide a reference for similar projects.