A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Expressway broadening roadbed structure and construction method thereof
The invention relates to the technical field of constructional engineering, in particular to an expressway broadening roadbed structure and a construction method thereof.The construction method comprises the steps that firstly, mortar rubble embankment walls on the two sides of an existing roadbed are reinforced, and then bubble mixed light soil retaining wall construction is conducted; the method comprises the following steps: firstly, positioning and lofting, then excavating steps on an original roadbed, paving a broken stone hardcore and inverted filter geotextile, then pouring panel foundation concrete, mounting a prefabricated panel, pouring bubble mixed light soil in a layered manner, and finally, treating a settlement joint. Pavement structure construction is conducted, specifically, firstly, construction preparation and lofting are conducted, the edge of an old asphalt pavement structure is chiseled into a step shape, asphalt is treated, a new pavement is paved, and then compaction and forming are conducted. The anti-overturning capacity of the surface protecting wall can be improved, and by selecting the bubble mixed light soil, on one hand, the increased load on the current side slope of the original road surface can be effectively reduced, and on the other hand, the influence on the current side slope in the construction process can be reduced.
本发明涉及建筑工程技术领域，具体为一种高速公路拓宽路基结构及其施工方法，首先加固现状路基两侧的浆砌片石路堤墙，再进行气泡混合轻质土挡墙施工；首先定位放样，再对原有路基开挖台阶后铺设碎石垫层和反滤层土工布，再浇筑面板基础混凝土，安装预制面板并分层浇筑气泡混合轻质土，最后进行沉降缝处理；进行路面结构施工，首先进行施工准备与放样，将旧沥青路面结构边缘凿成台阶状，处理沥青并摊铺新路面，后进行压实及成型。本发明可增加护面墙的抗倾覆能力，选用气泡混合轻质土一方面能有效减少对原路面现状边坡增加的荷载，另一方面能减少施工过程中对现状边坡的影响。
Expressway broadening roadbed structure and construction method thereof
The invention relates to the technical field of constructional engineering, in particular to an expressway broadening roadbed structure and a construction method thereof.The construction method comprises the steps that firstly, mortar rubble embankment walls on the two sides of an existing roadbed are reinforced, and then bubble mixed light soil retaining wall construction is conducted; the method comprises the following steps: firstly, positioning and lofting, then excavating steps on an original roadbed, paving a broken stone hardcore and inverted filter geotextile, then pouring panel foundation concrete, mounting a prefabricated panel, pouring bubble mixed light soil in a layered manner, and finally, treating a settlement joint. Pavement structure construction is conducted, specifically, firstly, construction preparation and lofting are conducted, the edge of an old asphalt pavement structure is chiseled into a step shape, asphalt is treated, a new pavement is paved, and then compaction and forming are conducted. The anti-overturning capacity of the surface protecting wall can be improved, and by selecting the bubble mixed light soil, on one hand, the increased load on the current side slope of the original road surface can be effectively reduced, and on the other hand, the influence on the current side slope in the construction process can be reduced.
本发明涉及建筑工程技术领域，具体为一种高速公路拓宽路基结构及其施工方法，首先加固现状路基两侧的浆砌片石路堤墙，再进行气泡混合轻质土挡墙施工；首先定位放样，再对原有路基开挖台阶后铺设碎石垫层和反滤层土工布，再浇筑面板基础混凝土，安装预制面板并分层浇筑气泡混合轻质土，最后进行沉降缝处理；进行路面结构施工，首先进行施工准备与放样，将旧沥青路面结构边缘凿成台阶状，处理沥青并摊铺新路面，后进行压实及成型。本发明可增加护面墙的抗倾覆能力，选用气泡混合轻质土一方面能有效减少对原路面现状边坡增加的荷载，另一方面能减少施工过程中对现状边坡的影响。
Expressway broadening roadbed structure and construction method thereof
一种高速公路拓宽路基结构及其施工方法
WEN YONGPING (author) / ZHANG YAN (author) / YANG SHUANGXI (author) / LI ZHENG (author) / ZHU XUKAI (author) / CHEN ZHIJIAN (author) / LEI JIALIN (author) / FU JIAQI (author) / LAN PING (author) / NING ZHENG (author)
2024-03-08
Patent
Electronic Resource
Chinese
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