阿尔及利亚东西高速公路梅拉尔旁压试验应用

Application of Menard Pressurementer Test in Construction of East-West Freeway of Algeria

研究目的:通过介绍法国梅纳尔旁压试验的试验方法、获取设计参数的原理及利用设计参数进行深基础桩长计算的过程,以阿尔及利亚东西高速公路一座桥梁工程为例进行计算,将计算方法及结果与国内常规方法进行比较,得出旁压试验的优点。希望能够为类似地区的工程项目提供一定的借鉴,并期望能够在国内工程中被推广。研究结论:(1)法国标准规定在施工图阶段进行基础埋置深度计算应采用原位测试数据,初步设计可用实验室数据,这和国内有明显的区别,而标贯、动探、静探等的应用均有较大的局限性,故旁压试验是本项目取得原位测试数据唯一选择;(2)旁压试验适用范围广,具备操作简便、获取参数可靠、计算方法成熟等优点。

Research purposes： The introduction is given to the test procedure and the principle of getting the design parameters of Menard Pressuremeter Test and the calculation process of pile length for the deep foundation. The calculation was made for the bridge project of the East - West Freehway in Algeria. And the calculation method and result were compared with the conventional test method used in China to know the merits of the PMT for providing the reference to the similar works and making this test applied widely in China. Research conclusions：From the analysis it is concluded：（ 1 ）The French norm stipulates that the in -situ testing data can be used for calculation of embedded depth of foundation in construction drawing stage, while the laboratory data can be used for the preliminary design. These are clearly different from the domestic practice. The application of the standard penetration, dynamic sounding, static sounding and other techniques has big limitation. So in this project, the pressuremeter test is the only way to get the in - situ data. （2） PMT has a wide applicable range, with the features of easy operation, reliable parameters and mature calculation method.