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Rectangular pipe jacking construction method for riverway
The invention relates to a rectangular pipe jacking construction method for a riverway. The rectangular pipe jacking construction method comprises the steps that a target riverbed is sampled and analyzed, and modeling is conducted in finite element software to reinforce the target riverbed; a pipe jacking starting well and a receiving well are dug, and a foundation pit guide rail, a pipe jacking machine and a propelling device for propelling the pipe jacking machine are arranged in the pipe jacking starting well; the pipe jacking machine is started to jack a hole of a target pipeline; after the pipe jacking machine enters the target pipeline under propelling of the propelling device, prefabricated pipe joints are connected with the pipe jacking machine, so that the pipe joints enter the target pipeline along with the pipe jacking machine under propelling of the propelling device until the pipe jacking machine enters the receiving well to finish laying of the pipe joints in the pipeline; grouting holes are reserved in the pipe joints, and all the grouting holes are connected through connecting pipes. and after the pipe joints are laid, the grouting holes in the pipe joints are opened, cement-water glass binary slurry is pressed into the connecting pipes so as to replace thixotropic slurry outside the pipeline. The construction difficulty can be lowered, and the construction safety can be improved.
本申请涉及一种河道的矩形顶管施工方法，包括：对目标河床进行采样分析并在有限元软件中建模以对目标河床进行加固处理；挖设顶管始发井和接收井，在顶管始发井内布设基坑导轨、顶管机及用以推动顶管机的推进装置；启动顶管机对目标管道的洞口进行顶进动作；顶管机在推进装置的推动下进入至目标管道内后，将预制好的管节与顶管机连接，以使得管节在推进装置的推动下跟随顶管机进入目标管道内，直至顶管机进入至接收井内以完成管道内管节的铺设；其中，管节上预留注浆孔且各注浆孔之间通过连接管连接；管节铺设完毕后，打开管节上的注浆孔，向连接管内压入水泥‑水玻璃双液浆以将管道外的触变泥浆置换，其能够降低施工难度并提高施工安全性。
Rectangular pipe jacking construction method for riverway
The invention relates to a rectangular pipe jacking construction method for a riverway. The rectangular pipe jacking construction method comprises the steps that a target riverbed is sampled and analyzed, and modeling is conducted in finite element software to reinforce the target riverbed; a pipe jacking starting well and a receiving well are dug, and a foundation pit guide rail, a pipe jacking machine and a propelling device for propelling the pipe jacking machine are arranged in the pipe jacking starting well; the pipe jacking machine is started to jack a hole of a target pipeline; after the pipe jacking machine enters the target pipeline under propelling of the propelling device, prefabricated pipe joints are connected with the pipe jacking machine, so that the pipe joints enter the target pipeline along with the pipe jacking machine under propelling of the propelling device until the pipe jacking machine enters the receiving well to finish laying of the pipe joints in the pipeline; grouting holes are reserved in the pipe joints, and all the grouting holes are connected through connecting pipes. and after the pipe joints are laid, the grouting holes in the pipe joints are opened, cement-water glass binary slurry is pressed into the connecting pipes so as to replace thixotropic slurry outside the pipeline. The construction difficulty can be lowered, and the construction safety can be improved.
本申请涉及一种河道的矩形顶管施工方法，包括：对目标河床进行采样分析并在有限元软件中建模以对目标河床进行加固处理；挖设顶管始发井和接收井，在顶管始发井内布设基坑导轨、顶管机及用以推动顶管机的推进装置；启动顶管机对目标管道的洞口进行顶进动作；顶管机在推进装置的推动下进入至目标管道内后，将预制好的管节与顶管机连接，以使得管节在推进装置的推动下跟随顶管机进入目标管道内，直至顶管机进入至接收井内以完成管道内管节的铺设；其中，管节上预留注浆孔且各注浆孔之间通过连接管连接；管节铺设完毕后，打开管节上的注浆孔，向连接管内压入水泥‑水玻璃双液浆以将管道外的触变泥浆置换，其能够降低施工难度并提高施工安全性。
Rectangular pipe jacking construction method for riverway
河道的矩形顶管施工方法
LIU JIAN (author) / LI XIANGHONG (author) / WANG SHENGKANG (author) / CHEN WEI (author) / HONG BIN (author) / ZHOU JIANZHONG (author)
2020-11-10
Patent
Electronic Resource
Chinese
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