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A platform for research: civil engineering, architecture and urbanism
Construction process of foam concrete light roadbed above subway tunnel
The invention discloses a construction process of a foam concrete light roadbed above a subway tunnel. The method comprises the steps that S1, a construction roadbed is excavated, and a filling area is preset; S2, a base of the filling area is cleaned and leveled; S3, graded broken stone is laid; S4, formwork erecting and bin dividing are carried out ; S5, a first layer of foam concrete is poured;S6, a reinforcing mesh is laid; S7, a next layer of foam concrete is poured; S8, a next layer of reinforcing mesh is laid; S9, the last layer of foam concrete is poured; and S10, water is sprayed formaintenance. By means of the construction process, the additional stress generated by rail-related section roadbed filling on the running subway shield tunnel is smaller than the numerical value required by the rail department, the safety of roadbed construction above the running subway shield tunnel is improved, and compared with traditional lime soil roadbed construction, the construction operation period is greatly shortened, and the additional stress generated by roadbed filling on the running subway shield tunnel is reduced.
本发明公开了一种地铁隧道上方泡沫混凝土轻质路基施工工艺，包括有如下步骤；S1：对施工路基挖土，预设填筑区域；S2：对填筑区域的基底清理平整；S3:铺级配碎石；S4:立模分仓；S5：浇筑第一层泡沫混凝土；S6:铺设钢筋网片；S7:浇筑下一层泡沫混凝土；S8:铺设下一层钢筋网片；S9:浇筑最后一层泡沫混凝土；S10:洒水养护，通过本施工工艺使得涉轨段路基填筑对运行地铁盾构隧道产生的附加应力小于轨道部门要求的数值，提高了运行地铁盾构隧道上方路基施工的安全性，相比于传统的灰土路基施工，大大缩短了施工作业周期，减少了路基填筑对运行地铁盾构隧道产生的附加应力。
Construction process of foam concrete light roadbed above subway tunnel
The invention discloses a construction process of a foam concrete light roadbed above a subway tunnel. The method comprises the steps that S1, a construction roadbed is excavated, and a filling area is preset; S2, a base of the filling area is cleaned and leveled; S3, graded broken stone is laid; S4, formwork erecting and bin dividing are carried out ; S5, a first layer of foam concrete is poured;S6, a reinforcing mesh is laid; S7, a next layer of foam concrete is poured; S8, a next layer of reinforcing mesh is laid; S9, the last layer of foam concrete is poured; and S10, water is sprayed formaintenance. By means of the construction process, the additional stress generated by rail-related section roadbed filling on the running subway shield tunnel is smaller than the numerical value required by the rail department, the safety of roadbed construction above the running subway shield tunnel is improved, and compared with traditional lime soil roadbed construction, the construction operation period is greatly shortened, and the additional stress generated by roadbed filling on the running subway shield tunnel is reduced.
本发明公开了一种地铁隧道上方泡沫混凝土轻质路基施工工艺，包括有如下步骤；S1：对施工路基挖土，预设填筑区域；S2：对填筑区域的基底清理平整；S3:铺级配碎石；S4:立模分仓；S5：浇筑第一层泡沫混凝土；S6:铺设钢筋网片；S7:浇筑下一层泡沫混凝土；S8:铺设下一层钢筋网片；S9:浇筑最后一层泡沫混凝土；S10:洒水养护，通过本施工工艺使得涉轨段路基填筑对运行地铁盾构隧道产生的附加应力小于轨道部门要求的数值，提高了运行地铁盾构隧道上方路基施工的安全性，相比于传统的灰土路基施工，大大缩短了施工作业周期，减少了路基填筑对运行地铁盾构隧道产生的附加应力。
Construction process of foam concrete light roadbed above subway tunnel
一种地铁隧道上方泡沫混凝土轻质路基施工工艺
LU HUIFENG (author) / SUN RUIRUI (author) / ZHANG WEIBIN (author) / YU WEIQIANG (author) / XU HUI (author) / PAN XIAOJUN (author) / LIU HAINING (author) / ZHU LIMING (author)
2021-02-02
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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