A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Roadbed widening door opening type retaining wall structure and construction method thereof
The invention provides a roadbed widening door opening type retaining wall structure and a construction method thereof. The retaining wall structure comprises a bearing layer, a soft foundation is arranged on the bearing layer, cement mixing piles are arranged in the soft foundation, an original roadbed is arranged on the soft foundation, the top of the original roadbed is an original road surface, the side face of the original roadbed is a slope surface, a step-shaped platform is arranged on the slope surface, and two rows of cement fly ash gravel piles are driven at corresponding positions to serve as foundation piles; the structure further comprises a door opening type reinforced concrete frame, and the two bottoms of the door opening type reinforced concrete frame are supported on the cement fly ash gravel piles respectively; and light foam concrete is filled between the left side of the door opening type reinforced concrete frame and the step-shaped platform on the original embankment, and the top of the door opening type reinforced concrete frame is provided with a widened pavement which is in butt joint with the original pavement. Differential settlement of the widened roadbed and the old roadbed can be effectively reduced, the stability of the roadbed is improved, the stability problem of the guardrail foundation is solved, on the premise that land resources and the environment are protected, the cost of soft foundation treatment and land acquisition is saved, the construction progress is accelerated, and good economic and technical benefits are achieved.
本发明提供了一种路基拼宽门洞式挡墙结构及施工方法，包括持力层，持力层上含有软基，软基内设有水泥搅拌桩，软基上设有原路基，原路基顶部为原路面，原路基侧面为坡面，坡面上设有阶状平台，在相应位置打设两排水泥粉煤灰碎石桩作为基础桩；还包括门洞式钢筋混凝土框架，门洞式钢筋混凝土框架两底部分别支撑在水泥粉煤灰碎石桩上；门洞式钢筋混凝土框架左侧与原路堤上阶状平台之间填轻质泡沫混凝土，门洞式钢筋混凝土框架顶部设有拼宽路面与原路面对接。能有效降低拼宽路基与老路路基的差异沉降、提高路基的稳定性、解决护栏基础稳定问题，还在保护土地资源和环境的前提下，节约软基处理、征地费用、加快施工进度，具有良好的经济技术效益。
Roadbed widening door opening type retaining wall structure and construction method thereof
The invention provides a roadbed widening door opening type retaining wall structure and a construction method thereof. The retaining wall structure comprises a bearing layer, a soft foundation is arranged on the bearing layer, cement mixing piles are arranged in the soft foundation, an original roadbed is arranged on the soft foundation, the top of the original roadbed is an original road surface, the side face of the original roadbed is a slope surface, a step-shaped platform is arranged on the slope surface, and two rows of cement fly ash gravel piles are driven at corresponding positions to serve as foundation piles; the structure further comprises a door opening type reinforced concrete frame, and the two bottoms of the door opening type reinforced concrete frame are supported on the cement fly ash gravel piles respectively; and light foam concrete is filled between the left side of the door opening type reinforced concrete frame and the step-shaped platform on the original embankment, and the top of the door opening type reinforced concrete frame is provided with a widened pavement which is in butt joint with the original pavement. Differential settlement of the widened roadbed and the old roadbed can be effectively reduced, the stability of the roadbed is improved, the stability problem of the guardrail foundation is solved, on the premise that land resources and the environment are protected, the cost of soft foundation treatment and land acquisition is saved, the construction progress is accelerated, and good economic and technical benefits are achieved.
本发明提供了一种路基拼宽门洞式挡墙结构及施工方法，包括持力层，持力层上含有软基，软基内设有水泥搅拌桩，软基上设有原路基，原路基顶部为原路面，原路基侧面为坡面，坡面上设有阶状平台，在相应位置打设两排水泥粉煤灰碎石桩作为基础桩；还包括门洞式钢筋混凝土框架，门洞式钢筋混凝土框架两底部分别支撑在水泥粉煤灰碎石桩上；门洞式钢筋混凝土框架左侧与原路堤上阶状平台之间填轻质泡沫混凝土，门洞式钢筋混凝土框架顶部设有拼宽路面与原路面对接。能有效降低拼宽路基与老路路基的差异沉降、提高路基的稳定性、解决护栏基础稳定问题，还在保护土地资源和环境的前提下，节约软基处理、征地费用、加快施工进度，具有良好的经济技术效益。
Roadbed widening door opening type retaining wall structure and construction method thereof
一种路基拼宽门洞式挡墙结构及施工方法
ZHANG ZHIFENG (author) / CHEN XIUHE (author) / CHEN XIULIN (author) / ZHAO HUAHONG (author) / CHEN XING (author)
2021-08-03
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
Roadbed widening structure and construction method thereof
| European Patent Office | 2023
Expressway widening roadbed structure and construction method thereof
| European Patent Office | 2021