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A platform for research: civil engineering, architecture and urbanism
Zero-expropriation roadbed widening structure suitable for soft foundation and construction method thereof
The invention discloses a zero-expropriation roadbed widening structure suitable for a soft foundation and a construction method thereof. The zero-expropriation roadbed widening structure suitable forthe soft foundation comprises an existing roadbed, a cushion layer, the soft foundation and a supporting layer which are sequentially arranged from top to bottom, the existing roadbed is provided with a side slope after a slope is greatly cut, and steps are arranged on the side slope, the slope ratio of the side slope is 1: 0.5-1: 1, and the roadbed widening structure further comprises a verticalreinforcement body, an anchoring part and a layered reinforced retaining wall. The vertical reinforcement body is arranged in a soft foundation and comprises a rigid pile, a flexible pile and a composite pile; and the cushion layer is laid at the top of the vertical reinforcement body. And the layered reinforced retaining wall is arranged on the cushion layer and is buckled with the step. The layered reinforced retaining wall comprises bagged gravels, geogrids, a coarse aggregate layer and filled soil. And the anchoring parts are arranged on the steps of the existing roadbed and are connectedwith the layered reinforced retaining wall. The widening structure can reduce the foundation construction treatment cost and improve the construction efficiency, and is stable and reliable in structure.
本发明公开了一种适用于软弱地基的零征地路基加宽结构及其施工方法，适用于软弱地基的零征地路基加宽结构包括自上而下依次设置的既有路基、垫层、软弱地基及持力层，既有路基具有大幅削坡后的边坡，边坡上设置有台阶，边坡的坡比是1：0.5～1：1，路基加宽结构还包括竖向增强体、锚固件以及层状加筋挡土墙。竖向增强体设置于软弱地基中，竖向增强体包括刚性桩、柔性桩以及复合桩；垫层铺设在竖向增强体的顶部。层状加筋挡土墙设置在垫层上并与台阶相扣合。层状加筋挡土墙包括袋装碎石、土工格栅、粗粒料层和填土。锚固件置于既有路基的台阶上并与层状加筋挡土墙相连。该加宽结构能够降低地基施工处理费用，提高施工效率，结构稳定可靠。
Zero-expropriation roadbed widening structure suitable for soft foundation and construction method thereof
The invention discloses a zero-expropriation roadbed widening structure suitable for a soft foundation and a construction method thereof. The zero-expropriation roadbed widening structure suitable forthe soft foundation comprises an existing roadbed, a cushion layer, the soft foundation and a supporting layer which are sequentially arranged from top to bottom, the existing roadbed is provided with a side slope after a slope is greatly cut, and steps are arranged on the side slope, the slope ratio of the side slope is 1: 0.5-1: 1, and the roadbed widening structure further comprises a verticalreinforcement body, an anchoring part and a layered reinforced retaining wall. The vertical reinforcement body is arranged in a soft foundation and comprises a rigid pile, a flexible pile and a composite pile; and the cushion layer is laid at the top of the vertical reinforcement body. And the layered reinforced retaining wall is arranged on the cushion layer and is buckled with the step. The layered reinforced retaining wall comprises bagged gravels, geogrids, a coarse aggregate layer and filled soil. And the anchoring parts are arranged on the steps of the existing roadbed and are connectedwith the layered reinforced retaining wall. The widening structure can reduce the foundation construction treatment cost and improve the construction efficiency, and is stable and reliable in structure.
本发明公开了一种适用于软弱地基的零征地路基加宽结构及其施工方法，适用于软弱地基的零征地路基加宽结构包括自上而下依次设置的既有路基、垫层、软弱地基及持力层，既有路基具有大幅削坡后的边坡，边坡上设置有台阶，边坡的坡比是1：0.5～1：1，路基加宽结构还包括竖向增强体、锚固件以及层状加筋挡土墙。竖向增强体设置于软弱地基中，竖向增强体包括刚性桩、柔性桩以及复合桩；垫层铺设在竖向增强体的顶部。层状加筋挡土墙设置在垫层上并与台阶相扣合。层状加筋挡土墙包括袋装碎石、土工格栅、粗粒料层和填土。锚固件置于既有路基的台阶上并与层状加筋挡土墙相连。该加宽结构能够降低地基施工处理费用，提高施工效率，结构稳定可靠。
Zero-expropriation roadbed widening structure suitable for soft foundation and construction method thereof
一种适用于软弱地基的零征地路基加宽结构及其施工方法
CAO WENZHAO (author) / ZHENG JUNJIE (author) / ZHENG YEWEI (author) / LIANG WEIQIAO (author) / JIANG YI (author) / ZENG CHEN (author)
2021-01-19
Patent
Electronic Resource
Chinese
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