Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
New and old roadbed widening spliced roadbed structure
The invention belongs to the technical field of road construction, discloses a new and old roadbed widening and splicing roadbed structure, and aims to solve the problems that a mountain road is close to a side slope, and the side slope is easy to settle and collapse after the road is widened. The structure comprises an original road and a widened road, a plurality of advanced small guide pipes are implanted in a roadbed of the original road, the advanced small guide pipes are gradually and obliquely arranged downwards in the direction from the widened road to the original road, and cement paste is injected into the advanced small guide pipes in a high-pressure grouting mode. At least vertical reinforcing steel bars are arranged at the positions, corresponding to the advanced small guide pipes, in the roadbed of the widened road, and the vertical reinforcing steel bars close to the original road are fixedly connected with the grouted advanced small guide pipes. The stress condition of the widened road surface can be optimized, and part of bearing force of the widened road surface is transmitted to the position below the original roadbed, so that the risks of sedimentation and collapse of the widened roadbed are reduced, and the service life of the road is prolonged.
本发明属于道路施工技术领域，公开了一种新旧路基加宽拼接路基结构，为了解决山区道路由于紧邻边坡，道路加宽后容易出现边坡沉降、塌陷的问题。本发明包括原有道路和加宽道路，所述原有道路的路基内植入有多根超前小导管，所述超前小导管沿着加宽道路至原有道路的方向逐渐倾斜向下设置，所述超前小导管内采用高压注浆的方式注入有水泥浆，所述加宽道路的路基内对应于超前小导管的位置至少布置有竖向钢筋，靠近原有道路的竖向钢筋与注浆后的超前小导管固定连接。本发明能够优化加宽路面的受力情况，将加宽路面的部分承载力传递到原路基下方，从而降低加宽路基处出现沉降、塌陷的风险，提高道路的使用寿命。
New and old roadbed widening spliced roadbed structure
The invention belongs to the technical field of road construction, discloses a new and old roadbed widening and splicing roadbed structure, and aims to solve the problems that a mountain road is close to a side slope, and the side slope is easy to settle and collapse after the road is widened. The structure comprises an original road and a widened road, a plurality of advanced small guide pipes are implanted in a roadbed of the original road, the advanced small guide pipes are gradually and obliquely arranged downwards in the direction from the widened road to the original road, and cement paste is injected into the advanced small guide pipes in a high-pressure grouting mode. At least vertical reinforcing steel bars are arranged at the positions, corresponding to the advanced small guide pipes, in the roadbed of the widened road, and the vertical reinforcing steel bars close to the original road are fixedly connected with the grouted advanced small guide pipes. The stress condition of the widened road surface can be optimized, and part of bearing force of the widened road surface is transmitted to the position below the original roadbed, so that the risks of sedimentation and collapse of the widened roadbed are reduced, and the service life of the road is prolonged.
本发明属于道路施工技术领域，公开了一种新旧路基加宽拼接路基结构，为了解决山区道路由于紧邻边坡，道路加宽后容易出现边坡沉降、塌陷的问题。本发明包括原有道路和加宽道路，所述原有道路的路基内植入有多根超前小导管，所述超前小导管沿着加宽道路至原有道路的方向逐渐倾斜向下设置，所述超前小导管内采用高压注浆的方式注入有水泥浆，所述加宽道路的路基内对应于超前小导管的位置至少布置有竖向钢筋，靠近原有道路的竖向钢筋与注浆后的超前小导管固定连接。本发明能够优化加宽路面的受力情况，将加宽路面的部分承载力传递到原路基下方，从而降低加宽路基处出现沉降、塌陷的风险，提高道路的使用寿命。
New and old roadbed widening spliced roadbed structure
一种新旧路基加宽拼接路基结构
WANG HUAZHEN (Autor:in) / CHEN LIANGHUI (Autor:in) / ZHANG TAO (Autor:in) / WANG XUXU (Autor:in) / ZHAO GANGGANG (Autor:in)
11.08.2023
Patent
Elektronische Ressource
Chinesisch
Roadbed widening structure and roadbed widening method
| Europäisches Patentamt | 2021