填土施工对桥台台背土压力的影响  

The Influence of Embankment Construction on the Earth Pressure of Bridge Abutment

作　　者：漆亭亭[1] 吴向东[2] 王保田[3] 张文慧[3] 

机构地区：[1]江苏省高速公路建设指挥部,南京210004 [2]黄河勘测规划设计有限公司岩土工程与材料科学研究院,郑州450000 [3]河海大学岩土工程水利部重点实验室,南京210098

出　　处：《土工基础》2007年第5期43-45,共3页Soil Engineering and Foundation

摘　　要：通过现场试验,研究了高速公路跨线桥在先施工桥台桩和肋台,后进行台背填土的情况下,肋板式桥台的肋台台背土压力的大小和分布。试验结果表明,肋台台背顶部的土压力与静止土压力接近,中部的土压力趋于被动土压力,只有底部的土压力大致等于主动土压力。The earth pressure and its distribution acted on the ribbed slab abutment has been conducted with in-situ test, due to the construction process that the pile and ribbed slab of bridge abutment is constructed first, then the earth is filled with the embankment during the expressway-bridge construction. From the test results, it is shown that the earth pressure is near to the static earth pressure on the top of ribbed slab abutment, it is approach to the passive earth pressure in the middle of ribbed slab abutment and it is near the active pressure at the bottom of ribbed slab abutment.

关 键 词：肋板式桥台 现场试验 肋台台背 土压力 

分 类 号：TU455[建筑科学—岩土工程]