A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for pushing frame to pass through high-speed railway downwards
The invention relates to the technical field of road construction, in particular to a construction method for pushing a frame to pass through a high-speed railway underneath The construction method adopts a pipe shed construction technology and is matched with an improved frame for pushing construction, and the distance between the frame and an excavation face of an upper layer soil body can be reduced by utilizing the extended small frame. The suspended length of the transverse lifting beam and the existing pipe shed is reduced, so that the existing pipe shed is supported on a steel blade angle or a small frame bottom plate in advance, an upper-layer excavation face soil body is supported, the connection between the upper-layer soil body and the lower-layer soil body is cut off, an original continuous excavation slope surface forms two slope surfaces after advanced excavation, the slope surface height of the upper-layer soil body is equivalently reduced, and the construction efficiency is improved. The stability of the excavation face is greatly improved, so that it is ensured that the maximum suspension length of the transverse lifting beam under the rail is controlled within the theoretical calculation range, deformation of a high-speed rail line caused by excessive deformation of the transverse lifting beam or accidental loss of excavation face soil is avoided, and the method is suitable for jacking frame underpass protection construction of the throat area of a high-speed railway station.
本发明涉及道路施工技术领域，具体涉及一种顶推框架下穿高速铁路的施工方法，本工法采用管棚施工技术并配合改进后的框架进行顶推施工，能够利用延伸超出的小框架缩小与上层土体开挖面的距离，减小横抬梁与既有管棚的悬空长度，使既有管棚超前支承于钢刃角或小框架底板上，支撑上层开挖面土体，隔断上下层土体的联系，超前开挖后原来的一段连续的开挖坡面形成两段坡面，等效减小了上层土体的坡面高度，大大提高了开挖面的稳定性，从而确保轨下横抬梁最大悬空长度控制在理论计算范围以内，避免横抬梁变形过大或者开挖面土体意外损失造成高铁线路的变形，适用于高速铁路车站咽喉区的顶进框架下穿防护施工。
Construction method for pushing frame to pass through high-speed railway downwards
The invention relates to the technical field of road construction, in particular to a construction method for pushing a frame to pass through a high-speed railway underneath The construction method adopts a pipe shed construction technology and is matched with an improved frame for pushing construction, and the distance between the frame and an excavation face of an upper layer soil body can be reduced by utilizing the extended small frame. The suspended length of the transverse lifting beam and the existing pipe shed is reduced, so that the existing pipe shed is supported on a steel blade angle or a small frame bottom plate in advance, an upper-layer excavation face soil body is supported, the connection between the upper-layer soil body and the lower-layer soil body is cut off, an original continuous excavation slope surface forms two slope surfaces after advanced excavation, the slope surface height of the upper-layer soil body is equivalently reduced, and the construction efficiency is improved. The stability of the excavation face is greatly improved, so that it is ensured that the maximum suspension length of the transverse lifting beam under the rail is controlled within the theoretical calculation range, deformation of a high-speed rail line caused by excessive deformation of the transverse lifting beam or accidental loss of excavation face soil is avoided, and the method is suitable for jacking frame underpass protection construction of the throat area of a high-speed railway station.
本发明涉及道路施工技术领域，具体涉及一种顶推框架下穿高速铁路的施工方法，本工法采用管棚施工技术并配合改进后的框架进行顶推施工，能够利用延伸超出的小框架缩小与上层土体开挖面的距离，减小横抬梁与既有管棚的悬空长度，使既有管棚超前支承于钢刃角或小框架底板上，支撑上层开挖面土体，隔断上下层土体的联系，超前开挖后原来的一段连续的开挖坡面形成两段坡面，等效减小了上层土体的坡面高度，大大提高了开挖面的稳定性，从而确保轨下横抬梁最大悬空长度控制在理论计算范围以内，避免横抬梁变形过大或者开挖面土体意外损失造成高铁线路的变形，适用于高速铁路车站咽喉区的顶进框架下穿防护施工。
Construction method for pushing frame to pass through high-speed railway downwards
一种顶推框架下穿高速铁路的施工方法
AI ZONGLIANG (author) / HU DAN (author) / ZHANG XIAOQIAN (author) / DAI SHENGYONG (author) / CHEN KEJIAN (author) / GUO ZHANYUAN (author) / YAN YONG (author) / WEI CHENGFENG (author) / LUO WEIYUAN (author) / SHI NAN (author)
2024-02-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2020
Frame bridge passing through existing railroad bridge downwards and construction method thereof
| European Patent Office | 2020
Bridge frame pushing device and pushing frame construction method
| European Patent Office | 2023
Construction process of building penetrating through dry ditch downwards
| European Patent Office | 2024
| European Patent Office | 2022