平板荷载试验中外标准应用对比

Comparison of Chinese and Foreign Standard Application of Plate Load Test

平板载荷试验是一项应用最广泛的土(岩)地基载荷原位试验方法。国内、外相关岩土勘察标准对该试验的操作规定有所不同,该文通过分析对比中国标准和美国ASTM标准,总结国内外对该试验的区别主要有:承压板尺寸、压载方式、沉降稳定标准、岩土破坏标准等。最后,通过对泰国某变电站平板载荷试验中发生的问题进行分析,总结了在国外进行平板载荷试验需要注意的问题。该文可为在国外进行平板载荷试验时提供一定的经验参考意义。

Plate load test is the most widely used in-situ test method for soil(rock) foundation load. The domestic and foreign relevant geotechnical investigation standards for the test operation provisions are different. By analyzing and comparing the Chinese standard and the American ASTM standard, this paper summarizes the main differences of the test at home and abroad: the size of the bearing plate, the ballast method, the settlement stability standard, the rock and soil failure standard, etc. Finally, by analyzing the problems occurred in the plate load test of a substation in Thailand, the problems that should be paid attention to in the plate load test abroad are summarized. This paper can provide some experience and reference for carrying out plate load tests abroad.