Field Performance of Embankment over Soft Soil
Field Performance of Embankment over Soft Soil
复制标题
软土路堤的现场性能
DOI：
10.1061/(asce)0733-9410(1984)110:8(1126
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
B. Thamm
中科院分区：
文献类型：
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作者：
B. Thamm
对软土上修建的引道路堤的设计、施工和性能进行了综述。由于地基条件差，设计包括了堆载填土、分阶段施工、垂直排水沟安装和水平织物层的组合。预测这种组合系统的行为是极其困难的。因此，有必要对底土及其内部的运动进行现场测量，并可以根据实验室试验校正土壤参数，改进现有的计算模型。为了研究路堤在施工过程中的行为，进行了水平和垂直运动的沉降-测斜仪组合管现场测量。在现场测试期间和之后，使用开发的土壤数据进行FE分析。分析表明，运动的早期测量可以帮助校正实验室数据。因此，在施工过程中，阶段施工和垂直排水设计的变化是可能的。由于所选择的施工程序，可以使用更经济的桩基设计来对抗桥台填料引起的水平力。
The design, construction, and performance of an approach embankment constructed on soft soil is reviewed. Due to the poor subsoil conditions, the design included a combination of surcharge fills, stage construction, installation of vertical drains, and a horizontal fabric layer. Predictions of the behavior of such combined systems are extremely difficult. Field measurements of movements of and within the subsoil are thus necessary and can correct soil parameters from laboratory tests and improve existing calculation models. To investigate the behavior of the embankment during construction field measurements of horizontal and vertical movements with a combined settlement-inclinometer tube were undertaken. During and after the field tests FE-analyses were performed using the developed soil data. The analyses show that early measurements of movements can assist in correcting laboratory data. Thus changes in stage construction and in the design of vertical drains during the construction procedure are possible. Due to the chosen construction procedure a more economical design of a pile foundation against horizontal forces induced by the abutment fill could be used.