A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Widening structure of old pavement and construction method of widening structure
The invention discloses an old pavement widening structure and a construction method thereof, the old pavement widening structure comprises a new base layer, the side part of the old base layer of the old pavement extends and is filled to form the new base layer, the upper part of the junction of the new base layer and the old base layer is provided with a back-digging groove, and two opposite side walls of the notch of the back-digging groove are provided with accommodating gaps; the first concrete is poured into the reverse digging groove and the containing notch to be solidified to form a force unloading plate; the lower ends of the prefabricated supporting columns are anchored in the first concrete in the containing notch, and the upper ends of the prefabricated supporting columns extend to the position above the containing notch; a breaking notch is formed in the side portion of the old surface layer, the second concrete is poured into the new base layer and the breaking notch so as to be solidified to form the new surface layer, and the upper ends of the prefabricated supporting columns are embedded in the second concrete; and the dowel bars are embedded in the new surface layer and arranged above the junction in a crossing manner. The problem that pavement diseases such as slab staggering and arching are likely to be formed in an existing pavement structure for old road widening construction is solved.
本发明公开了一种旧路面的拓宽结构及其施工方法，包括：新基层，旧路面的旧基层的侧部延伸填筑形成新基层，新旧基层的交接处的上部形成有反挖槽，反挖槽的槽口处的相对两侧壁形成有容置缺口；第一混凝土，灌注于反挖槽和容置缺口中以固结形成卸力板；多根预制支承柱，其下端锚固于容置缺口中的第一混凝土中，其上端伸至容置缺口的上方；第二混凝土，旧面层的侧部开设有破除缺口，第二混凝土浇筑于新基层和破除缺口中以固结形成新面层，预制支承柱的上端埋设于第二混凝土中；多根传力杆，埋设于新面层中且横跨设置于交接处的上方。本发明解决了现有的旧路拓宽施工的路面结构容易形成错台、起拱等路面病害的问题。
Widening structure of old pavement and construction method of widening structure
The invention discloses an old pavement widening structure and a construction method thereof, the old pavement widening structure comprises a new base layer, the side part of the old base layer of the old pavement extends and is filled to form the new base layer, the upper part of the junction of the new base layer and the old base layer is provided with a back-digging groove, and two opposite side walls of the notch of the back-digging groove are provided with accommodating gaps; the first concrete is poured into the reverse digging groove and the containing notch to be solidified to form a force unloading plate; the lower ends of the prefabricated supporting columns are anchored in the first concrete in the containing notch, and the upper ends of the prefabricated supporting columns extend to the position above the containing notch; a breaking notch is formed in the side portion of the old surface layer, the second concrete is poured into the new base layer and the breaking notch so as to be solidified to form the new surface layer, and the upper ends of the prefabricated supporting columns are embedded in the second concrete; and the dowel bars are embedded in the new surface layer and arranged above the junction in a crossing manner. The problem that pavement diseases such as slab staggering and arching are likely to be formed in an existing pavement structure for old road widening construction is solved.
本发明公开了一种旧路面的拓宽结构及其施工方法，包括：新基层，旧路面的旧基层的侧部延伸填筑形成新基层，新旧基层的交接处的上部形成有反挖槽，反挖槽的槽口处的相对两侧壁形成有容置缺口；第一混凝土，灌注于反挖槽和容置缺口中以固结形成卸力板；多根预制支承柱，其下端锚固于容置缺口中的第一混凝土中，其上端伸至容置缺口的上方；第二混凝土，旧面层的侧部开设有破除缺口，第二混凝土浇筑于新基层和破除缺口中以固结形成新面层，预制支承柱的上端埋设于第二混凝土中；多根传力杆，埋设于新面层中且横跨设置于交接处的上方。本发明解决了现有的旧路拓宽施工的路面结构容易形成错台、起拱等路面病害的问题。
Widening structure of old pavement and construction method of widening structure
旧路面的拓宽结构及其施工方法
WU CHANGYONG (author) / ZHAO LINWEI (author) / LIU MOQUAN (author) / TAN FUSHENG (author) / JIA WEN (author) / XIE YUANXUN (author) / LIU YANG (author) / PAN YIFAN (author) / HU ZHITAO (author) / HUA XUAN (author)
2023-05-30
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
| European Patent Office | 2020
Partial-Lane Pavement Widening
NTIS | 1975
| Engineering Index Backfile | 1928
WIDENING BRACKET STRUCTURE AND FLOOR SLAB WIDENING STRUCTURE
| European Patent Office | 2020