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.
出处
《土工基础》
2007年第5期43-45,共3页
Soil Engineering and Foundation
关键词
肋板式桥台
现场试验
肋台台背
土压力
ribbed slab abutment, in-situ test, back of ribbed slab, earth pressure
