旁压试验在饱和黏性土路基沉降计算中的应用

Application of Lateral Loading Test in Calculation of Saturated Cohesive Soil Subgrade Settlement

旁压试验作为一种岩土工程原位测试技术,由于其适用性好、测试速度快、试验条件较好,在欧标体系下的岩土工程勘察中应用广泛,但通过旁压试验结果计算饱和黏性土的路基沉降,目前并没有取得工程师的普遍认可,为此,以北非地中海某国一条高速公路工程为例,采用旁压试验结果对饱和黏性土路基总沉降量进行了计算,并通过传统固结理论计算结果进行了复核验证,结果显示有良好的可比性。

The lateral loading test is an in-situ test technology for geotechnical engineering, which is widely applied in geotechnical engineering investigation based on European standard system relying on good applicability, high testing and good testing condition. However, at present calculation of saturated cohesive soil subgrade settlement by lateral loading test results are not generally acceptable to the engineers. Therefore, in this paper, the saturated cohesive soil subgrade settlement is calculated for an expressway of a mediterranean country in North Africa by lateral loading test traditional consolidation theory, and the result results, the calculation is verified by the calculation based on shows good comparability.