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A platform for research: civil engineering, architecture and urbanism
Soil engineering structure of abutment back in soft soil area and construction method
The invention relates to a soil engineering structure of a bridge abutment back in a soft soil area. The soil engineering structure comprises a plurality of cement mixing piles, a reinforced soil layer, a foam light soil layer, a slag roadbed and a bridge end transition slab. The cement mixing piles are arranged at intervals in the direction away from the bridge head, and the lengths of the cement mixing piles are sequentially decreased in the direction away from the bridge head. Pile caps are arranged at the upper ends of the pile tops of the cement mixing piles, and the pile caps are located in the reinforced soil layer; the foam light soil layer and the slag roadbed are both arranged on the reinforced soil layer, and the foam light soil layer is in lap joint with the bridgehead and the slag roadbed; the bridgehead transition slab is arranged on the bridgehead and the foam light soil layer and is connected with the bridgehead. An organic load transmission whole is formed, the vehicle load on the upper portion is transmitted into the deep foundation, the road surface load is dispersed through the large bearing force of the cement stirring pile groups and the rigid-flexible combined filling materials, and the phenomena of uneven settlement of the back of the bridge abutment in the soft soil area and vehicle bumping at the bridge head can be avoided.
本发明涉及一种软土地区桥台台背的土工结构，包括：若干根水泥搅拌桩、加筋土层、泡沫轻质土层、宕渣路基和桥头搭板；若干根水泥搅拌桩沿远离桥头的方向间隔设置，且若干根水泥搅拌桩的长度沿远离桥头的方向依次递减；若干根水泥搅拌桩的桩顶上端均设置有桩帽，桩帽位于加筋土层内；泡沫轻质土层和宕渣路基均设置于加筋土层上，泡沫轻质土层分别与桥头和宕渣路基搭接；桥头搭板设置于桥头和泡沫轻质土层上，桥头搭板连接桥头。本发明形成了一个有机的载荷传递整体，将上部的车辆载荷传递到深层地基中，利用水泥搅拌桩桩群较大的承载力以及刚柔组合填充材料来分散路面载荷，能够解决软土地区桥台台背的不均匀沉降和桥头跳车现象。
Soil engineering structure of abutment back in soft soil area and construction method
The invention relates to a soil engineering structure of a bridge abutment back in a soft soil area. The soil engineering structure comprises a plurality of cement mixing piles, a reinforced soil layer, a foam light soil layer, a slag roadbed and a bridge end transition slab. The cement mixing piles are arranged at intervals in the direction away from the bridge head, and the lengths of the cement mixing piles are sequentially decreased in the direction away from the bridge head. Pile caps are arranged at the upper ends of the pile tops of the cement mixing piles, and the pile caps are located in the reinforced soil layer; the foam light soil layer and the slag roadbed are both arranged on the reinforced soil layer, and the foam light soil layer is in lap joint with the bridgehead and the slag roadbed; the bridgehead transition slab is arranged on the bridgehead and the foam light soil layer and is connected with the bridgehead. An organic load transmission whole is formed, the vehicle load on the upper portion is transmitted into the deep foundation, the road surface load is dispersed through the large bearing force of the cement stirring pile groups and the rigid-flexible combined filling materials, and the phenomena of uneven settlement of the back of the bridge abutment in the soft soil area and vehicle bumping at the bridge head can be avoided.
本发明涉及一种软土地区桥台台背的土工结构，包括：若干根水泥搅拌桩、加筋土层、泡沫轻质土层、宕渣路基和桥头搭板；若干根水泥搅拌桩沿远离桥头的方向间隔设置，且若干根水泥搅拌桩的长度沿远离桥头的方向依次递减；若干根水泥搅拌桩的桩顶上端均设置有桩帽，桩帽位于加筋土层内；泡沫轻质土层和宕渣路基均设置于加筋土层上，泡沫轻质土层分别与桥头和宕渣路基搭接；桥头搭板设置于桥头和泡沫轻质土层上，桥头搭板连接桥头。本发明形成了一个有机的载荷传递整体，将上部的车辆载荷传递到深层地基中，利用水泥搅拌桩桩群较大的承载力以及刚柔组合填充材料来分散路面载荷，能够解决软土地区桥台台背的不均匀沉降和桥头跳车现象。
Soil engineering structure of abutment back in soft soil area and construction method
一种软土地区桥台台背的土工结构及施工方法
MENG YUANYING (author) / LI LIN (author) / SHA AIMIN (author) / ZHANG DENGHONG (author) / JIAO WENXIU (author) / LIU XIJUN (author)
2024-01-30
Patent
Electronic Resource
Chinese
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