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Structure and construction method for preventing later settlement of soft soil foundation pipe jacking pipeline
The invention discloses a structure for preventing later settlement of a soft soil foundation pipe jacking pipeline and a construction method, and relates to the technical field of pipe jacking engineering. Tension-bearing devices are arranged on a pipeline between two inspection wells in pipe jacking construction at intervals, each tension-bearing device is mainly composed of a tension-bearing pipe 1, a tension-bearing pile 2, a pull rod 3 and a tension-bearing platform 4, and the tension-bearing piles 2 and the tension-bearing platforms 4 are poured through reinforced concrete. The tension-bearing pipe 1 is provided with an anchor recess 5, the lower portion of the pull rod 3 is provided with an anchoring head 6, and the anchoring head 6 is fixedly embedded in the anchor recess 5. By means of the bearing capacity of good soil texture on the upper portion of the pipeline, the bearing capacity of the bearing platform 4 on the bottom face and the friction force of the bearing piles 2 are enlarged, the pipeline is pulled through the pull rods 3, the pressure of the self weight of the pipeline on the soft soil foundation is overcome, and sedimentation of the pipe jacking pipeline at the soft soil foundation is prevented. The problem of later settlement of the pipe jacking pipeline is effectively solved from the angle of pipeline stress, construction is easy and convenient, and quality is controllable.
本发明公开了一种防止软土地基顶管管道后期沉降构造及施工方法，涉及顶管工程技术领域。在顶管施工的两个检查井之间的管道上间隔设置承拉装置，承拉装置主要由承拉管材1、承拉桩2、拉杆3、承拉平台4组成，承拉桩2和承拉平台4采用钢筋混凝土浇筑。承拉管材1设有锚穴5，拉杆3的下部设有锚固头6，锚固头6嵌固在锚穴5内。利用管道上部良好土质的承载能力，通过扩大底面的承拉平台4的承载力和承拉桩2的摩擦力，通过拉杆3将管道牵拉，克服管道自重对软土地基的压力，防止顶管管道在软土地基处的沉降。从管道受力角度有效地解决顶管管道后期沉降问题，施工简便、质量可控。
Structure and construction method for preventing later settlement of soft soil foundation pipe jacking pipeline
The invention discloses a structure for preventing later settlement of a soft soil foundation pipe jacking pipeline and a construction method, and relates to the technical field of pipe jacking engineering. Tension-bearing devices are arranged on a pipeline between two inspection wells in pipe jacking construction at intervals, each tension-bearing device is mainly composed of a tension-bearing pipe 1, a tension-bearing pile 2, a pull rod 3 and a tension-bearing platform 4, and the tension-bearing piles 2 and the tension-bearing platforms 4 are poured through reinforced concrete. The tension-bearing pipe 1 is provided with an anchor recess 5, the lower portion of the pull rod 3 is provided with an anchoring head 6, and the anchoring head 6 is fixedly embedded in the anchor recess 5. By means of the bearing capacity of good soil texture on the upper portion of the pipeline, the bearing capacity of the bearing platform 4 on the bottom face and the friction force of the bearing piles 2 are enlarged, the pipeline is pulled through the pull rods 3, the pressure of the self weight of the pipeline on the soft soil foundation is overcome, and sedimentation of the pipe jacking pipeline at the soft soil foundation is prevented. The problem of later settlement of the pipe jacking pipeline is effectively solved from the angle of pipeline stress, construction is easy and convenient, and quality is controllable.
本发明公开了一种防止软土地基顶管管道后期沉降构造及施工方法，涉及顶管工程技术领域。在顶管施工的两个检查井之间的管道上间隔设置承拉装置，承拉装置主要由承拉管材1、承拉桩2、拉杆3、承拉平台4组成，承拉桩2和承拉平台4采用钢筋混凝土浇筑。承拉管材1设有锚穴5，拉杆3的下部设有锚固头6，锚固头6嵌固在锚穴5内。利用管道上部良好土质的承载能力，通过扩大底面的承拉平台4的承载力和承拉桩2的摩擦力，通过拉杆3将管道牵拉，克服管道自重对软土地基的压力，防止顶管管道在软土地基处的沉降。从管道受力角度有效地解决顶管管道后期沉降问题，施工简便、质量可控。
Structure and construction method for preventing later settlement of soft soil foundation pipe jacking pipeline
防止软土地基顶管管道后期沉降的构造及施工方法
LIU CHANGJIANG (author) / PAN YIJUN (author) / CHEN WUJUN (author) / LIN LUYAO (author) / HUANG HUIJIAO (author) / HU TIANJIAO (author) / HOU LIXUE (author) / CHEN GUOQIANG (author) / LIU JIANHUA (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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