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A platform for research: civil engineering, architecture and urbanism
Weak expansive soil old roadbed reinforcing method and widening method
The invention discloses a weak expansive soil old roadbed reinforcing method and widening method, and the weak expansive soil old roadbed reinforcing method comprises the following steps: breaking anold roadbed surface, and leveling the position of a roadbed; the pile position of each pile being determined on a roadbed and marked, wherein the pile positions are arranged in an equilateral triangleshape, and the distance between every two adjacent pile positions is twice the influence radius of each slurry spraying pile; and slurry spraying pile construction being conducted on the pile positions, and the composite foundation being formed. The problems that in the prior art, in the construction process of weak expansive soil old roadbed reinforcement, the construction difficulty is large, dust raising is large when ash is turned and mixed on a construction site, and the environmental protection requirement cannot be met are solved.
本申请公开了一种弱膨胀土老路基加固方法及加宽方法，该弱膨胀土老路基加固方法包括如下步骤：破除老路路面，将路床位置整平；在路床上确定每根桩的桩位并进行标记，桩位呈等边三角形布置，相邻桩位之间的间距为每根浆喷桩影响半径的两倍；在桩位上进行浆喷桩施工，形成复合地基。本申请解决了相关技术中对弱膨胀土老路基加固的施工过程中施工难度大，且施工现场翻拌参灰扬尘较大，不满足环保要求的问题。
Weak expansive soil old roadbed reinforcing method and widening method
The invention discloses a weak expansive soil old roadbed reinforcing method and widening method, and the weak expansive soil old roadbed reinforcing method comprises the following steps: breaking anold roadbed surface, and leveling the position of a roadbed; the pile position of each pile being determined on a roadbed and marked, wherein the pile positions are arranged in an equilateral triangleshape, and the distance between every two adjacent pile positions is twice the influence radius of each slurry spraying pile; and slurry spraying pile construction being conducted on the pile positions, and the composite foundation being formed. The problems that in the prior art, in the construction process of weak expansive soil old roadbed reinforcement, the construction difficulty is large, dust raising is large when ash is turned and mixed on a construction site, and the environmental protection requirement cannot be met are solved.
本申请公开了一种弱膨胀土老路基加固方法及加宽方法，该弱膨胀土老路基加固方法包括如下步骤：破除老路路面，将路床位置整平；在路床上确定每根桩的桩位并进行标记，桩位呈等边三角形布置，相邻桩位之间的间距为每根浆喷桩影响半径的两倍；在桩位上进行浆喷桩施工，形成复合地基。本申请解决了相关技术中对弱膨胀土老路基加固的施工过程中施工难度大，且施工现场翻拌参灰扬尘较大，不满足环保要求的问题。
Weak expansive soil old roadbed reinforcing method and widening method
弱膨胀土老路基加固方法及加宽方法
QU KAI (author) / HOU ZHAOLONG (author) / ZHU QINGQING (author) / ZHU DANDAN (author) / MA QIANG (author)
2021-03-26
Patent
Electronic Resource
Chinese
Material selecting method for weak expansive soil roadbed construction
| European Patent Office | 2020