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A platform for research: civil engineering, architecture and urbanism
Construction method for newly-built tunnel underneath passing through existing pipe culvert and existing pipe culvert supporting structure
The construction method of the newly-built tunnel underneath passing through the existing pipe culvert is suitable for open excavation method tunneling operation, the pile foundation and the bracket beam are adopted in the construction method to vertically support the existing pipe culvert which transversely passes through a newly-built project operation area, and the construction method is suitable for various plane relations such as orthogonality, oblique crossing and parallelism and is suitable for pipe culverts with various sections such as round sections and square sections; compared with the scheme that the elevation is reduced, an underground excavation mode is adopted at a certain safe distance for underneath crossing or the pipeline is moved and modified, by the adoption of the construction method, a newly-built project can underneath crossing the existing pipe culvert in a small clear distance mode, and the project construction cost and the construction difficulty are effectively reduced. The invention further provides an existing pipe culvert supporting structure constructed by adopting the construction method, and a supporting system is good in integrity, high in rigidity and high in safety and reliability.
本发明提供的新建隧道下穿既有管涵施工工法，适用于明挖法隧道掘进作业，本工法采用桩基础+牛腿梁以竖向支撑横穿新建工程作业区的既有管涵，适用于正交、斜交、平行等各种平面关系，适用于圆形、方形等各种截面的管涵；相比降低标高以一定的安全距离采用暗挖的方式下穿或对管线进行迁改的方案，采用本工法，新建工程得以小净距的方式下穿既有管涵，有效降低了工程建设成本和施工难度。本发明还提供了采用该施工工法所构建的既有管涵支护结构，支撑体系整体性好、刚度大，且安全性和可靠性较高。
Construction method for newly-built tunnel underneath passing through existing pipe culvert and existing pipe culvert supporting structure
The construction method of the newly-built tunnel underneath passing through the existing pipe culvert is suitable for open excavation method tunneling operation, the pile foundation and the bracket beam are adopted in the construction method to vertically support the existing pipe culvert which transversely passes through a newly-built project operation area, and the construction method is suitable for various plane relations such as orthogonality, oblique crossing and parallelism and is suitable for pipe culverts with various sections such as round sections and square sections; compared with the scheme that the elevation is reduced, an underground excavation mode is adopted at a certain safe distance for underneath crossing or the pipeline is moved and modified, by the adoption of the construction method, a newly-built project can underneath crossing the existing pipe culvert in a small clear distance mode, and the project construction cost and the construction difficulty are effectively reduced. The invention further provides an existing pipe culvert supporting structure constructed by adopting the construction method, and a supporting system is good in integrity, high in rigidity and high in safety and reliability.
本发明提供的新建隧道下穿既有管涵施工工法，适用于明挖法隧道掘进作业，本工法采用桩基础+牛腿梁以竖向支撑横穿新建工程作业区的既有管涵，适用于正交、斜交、平行等各种平面关系，适用于圆形、方形等各种截面的管涵；相比降低标高以一定的安全距离采用暗挖的方式下穿或对管线进行迁改的方案，采用本工法，新建工程得以小净距的方式下穿既有管涵，有效降低了工程建设成本和施工难度。本发明还提供了采用该施工工法所构建的既有管涵支护结构，支撑体系整体性好、刚度大，且安全性和可靠性较高。
Construction method for newly-built tunnel underneath passing through existing pipe culvert and existing pipe culvert supporting structure
新建隧道下穿既有管涵施工工法及既有管涵支护结构
PENG HUI (author) / ZOU GUANGJIONG (author) / ZHOU JIE (author) / CHENG BO (author) / CHEN BO (author) / MEI LESHENG (author) / FAN WENTING (author) / YI YI (author) / CHENG ZHIYIN (author) / HU QIAN (author)
2024-07-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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