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土工合成材料处理桥头跳车时加固段长度的确定方法

Length -determination of the stabilized roadbed to prevent vehicle dump on bridge head by geosynthetics

中文摘要英文摘要

在利用《公路土工合成材料应用技术规范》计算桥头跳车中的加固段长度时,常出现较大的偏差,原因是规范只考虑土工合成材料对台后填土的加筋作用,而未考虑到加固段在道路正常使用时还起到了对正常路基与桥台差异沉降的过渡作用。通过实例可以看出在考虑了加固段在道路正常使用时对正常路基与桥台差异沉降的过渡作用所得的结果更为合理。故在设计中应综合考虑土工合成材料对台后填土的加筋和加固段对差异沉降的过渡这两方面的作用,更为合理的进行设计。

The error will be produced if the way is quoted from the Technical specifications for Application of Geosynthetics in Highway when determine the length of the stabilized roadbed to prevent vehicle dump on bridge head by geosynthetics. The reason is that the reinforcement of the geosynthetics is considered, but the transition of the differential settlement on the abutment and normal roadbed is not. The result concluded from a instance is more reasonable by considering the transition of the differential settlement on the abutment and normal roadbed. So the two effects should be considered both in design to make the design more reasonable.

张新、魏国安、于业栓、姚小平

公路运输工程水工材料工程设计、工程测绘

土工合成材料桥头跳车差异沉降

geosynthetics vehicle dump on bridge head differential settlement

张新,魏国安,于业栓,姚小平.土工合成材料处理桥头跳车时加固段长度的确定方法[EB/OL].(2006-03-27)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200603-477.点此复制

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