Floating mounting construction method for multiple PE pipes in large jacking pipe

A construction method and pipe jacking technology, which is applied to mining equipment, earthwork drilling, mining equipment, etc., can solve the problems of difficulty in installing multiple PE pipes, achieve great promotion value, technical feasibility, and reduce resistance

Active Publication Date: 2017-11-10
中城投集团第六工程局有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a construction method for the floating installation of multiple PE pipes in a large-scale

Method used

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  • Floating mounting construction method for multiple PE pipes in large jacking pipe

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Embodiment Construction

[0016] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

[0017] The construction method of floating installation of multiple PE pipes in large jacking pipes, such as figure 1 shown, including the following steps:

[0018] (1) excavate the working well 6 at the head end of the pipe jacking 10, excavate the receiving well 12 at the end of the pipe jacking 10, the pipe jacking 10 connects the working well 6 and the receiving well 12, and the side of the working well 6 far away from the pipe jacking 10 has a preliminary Leave hole 5, excavate a descending ramp 4 from natural ground 1 to reserved hole 5;

[0019] (2) Weld several sections of standard PE pipes into a PE pipe 3 of required length, and weld the pulling head 11 at the head end; manually set the fixed bracket 15 and the pulley block 13 in the receiving well 12, and set them at the outlet of the receiving well 12 Hoist 16;

[0020] (3) Manually lead the...

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Abstract

The invention discloses a floating mounting construction method for multiple PE pipes in a large jacking pipe. A working well and a receiving well are excavated at the two ends of the jacking pipe correspondingly, and a lower slope path is excavated to a reserved hole of the working well; welding of the PE pipes is completed outside the working well, and a pulling head is welded to the head end of the welded PE pipe; a winch is placed at one end of the receiving well, and a fixing bracket and a roller set are arranged in the receiving well; a steel wire rope wound on the winch manually winds across the roller set, is pulled into the receiving well, is pulled outside the working well through a pulling trolley sequentially along the jacking pipe and the working well, and is connected with the pulling head, and a thin steel wire rope body is tied at the head end of the steel wire rope; water is injected into the jacking pipe to reach a certain water level; and the PE pipe is pulled to a predetermined position through the steel wire rope, water is pumped out, and the PE pipe sinks to the preset position. According to the floating mounting construction method, the welding quality of the PE pipe is improved, the PE pipe is pulled by the steel wire rope to move forwards, the pulling resistance of the PE pipe is reduced through the buoyancy of the water, and the problem of difficult mounting in-place of the multiple PE pipes in the narrow space is solved.

Description

technical field [0001] The invention belongs to the technical field of municipal construction, and in particular relates to a construction method for floating installation of multiple PE pipes in large-scale pipe jacking, which is suitable for installing multiple PE pipes in pipe jacking passing through rivers, lakes, highways and railways. Background technique [0002] At present, pipeline projects passing through rivers, lakes, highways, and railways generally adopt the structural form of multiple PE pipes built into the casing. For the construction of multiple PE pipes in the casing, there are two construction plans that can be adopted: one is to pour a cushion at the bottom of the casing, lay the track, place the PE pipes on the transport trolley, and use the traction method to transport the PE pipes. The pipe is put in place; the other is to install a set of guide wheels at a certain distance around the casing, and use traction to place in place. However, there are def...

Claims

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Application Information

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IPC IPC(8): E21D9/10E21F17/00
CPCE21D9/10E21F17/00
Inventor 开前正李奎汪世伟燕来张磊
Owner 中城投集团第六工程局有限公司
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