浅析螺旋板载荷试验的应用

Application of Spiral Plate Loading Test

螺旋板载荷试验因能旋入地面以下一定深度进行试验而广泛应用于深层地基土及地下水位以下地基土的承载力测试,可测求不同深度处的承载力、变形模量、压缩模量和饱和粘性土的不排水抗剪强度等。随着城市建设的不断发展,高层建筑层出不穷,对传统的岩土工程勘察要求也在不断提高,普通的浅层平板载荷试验已经不能满足工程的需求,迫使岩土工程勘察中的测试手段不断完善,螺旋板载荷试验这种试验深度范围较大的测试手段也越来越多的应用在高层建筑的岩土勘察中。

Spiral plate load test has been widely used in bearing ca- pacity testing of deep foundation earth and below groundwater lev- el for it can be rotated into a certain depth below the surface to test. Spiral plate load test can measures bearing capacity, deforma- tion modulus, compression modulus and undrained shear strength of saturated clay at different depths. With the continuous develop- ment of city and high-rise buildings emerge one after another the traditional engineering survey requirements are also increasing, and the ordinary shallow plate loading test cannot meet the require- ments of the project, the testing means of geotechnical engineering investigation have to be improved, so the test method of spiral plate load with a wide range of testing depth is more and more ap- plied in geotechnical investigation in high-rise building.