Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge cushion cap force underpinning technology in underneath pass open trench tunnel construction
The invention discloses a bridge cushion cap force underpinning technology in underneath pass open trench tunnel construction. The technology is composed of a planned tunnel 1, a bridge floor 2, cushion caps, bridge piers, joists, support piles and pile foundations. For an existing bridge in the underneath pass open trench tunnel construction process, when tunnel foundation excavation is performed, the unloading and disturbance of a soil body can cause the adjacent bridge pier pile foundations to generate larger horizontal displacement, the stability of the bridge and the safety of pedestrians and vehicles are seriously impacted, and therefore the technology of additionally arranging the joists and the support piles is adopted to control the bridge deformation. Firstly, the support piles are additionally arranged on the two sides of each pile foundation under the bridge piers; secondly, the bridge cushion caps and the support piles on the two sides of the bridge cushion caps are connected into a whole through pouring the reinforced concrete joists, and therefore the purposes that the upper portion load is shared by using the joists and the support piles, the force borne by the bridge pier pile foundations is reduced, and the horizontal displacement of the bridge pier pile foundations is effectively controlled are achieved.
Bridge cushion cap force underpinning technology in underneath pass open trench tunnel construction
The invention discloses a bridge cushion cap force underpinning technology in underneath pass open trench tunnel construction. The technology is composed of a planned tunnel 1, a bridge floor 2, cushion caps, bridge piers, joists, support piles and pile foundations. For an existing bridge in the underneath pass open trench tunnel construction process, when tunnel foundation excavation is performed, the unloading and disturbance of a soil body can cause the adjacent bridge pier pile foundations to generate larger horizontal displacement, the stability of the bridge and the safety of pedestrians and vehicles are seriously impacted, and therefore the technology of additionally arranging the joists and the support piles is adopted to control the bridge deformation. Firstly, the support piles are additionally arranged on the two sides of each pile foundation under the bridge piers; secondly, the bridge cushion caps and the support piles on the two sides of the bridge cushion caps are connected into a whole through pouring the reinforced concrete joists, and therefore the purposes that the upper portion load is shared by using the joists and the support piles, the force borne by the bridge pier pile foundations is reduced, and the horizontal displacement of the bridge pier pile foundations is effectively controlled are achieved.
Bridge cushion cap force underpinning technology in underneath pass open trench tunnel construction
XI JING (Autor:in) / HE XIONGBING (Autor:in) / WU DAIJIA (Autor:in) / LI TIANLU (Autor:in)
20.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2023
Land prefabricated immersed tube underneath pass tunnel construction method
| Europäisches Patentamt | 2023
Construction method for underneath pass of high-speed bridge
| Europäisches Patentamt | 2022
Underpinning method for lower bridge of open-cut tunnel
| Europäisches Patentamt | 2015