River penetrating process

A process and river crossing technology, applied in the direction of pipeline laying and maintenance, pipes/pipe joints/fittings, machinery and equipment, etc., can solve problems such as difficulty in rectification, improve construction efficiency, improve stability, and reduce the probability of position changes Effect

Inactive Publication Date: 2018-06-22
杭州水利水电勘测设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a river crossing process, which solves the problem of difficult deviation correction and has the advantage of correcting deviation during and after construction

Method used

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Examples

Experimental program
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Embodiment 1

[0048] Embodiment 1: a kind of river crossing process, comprises the following steps:

[0049] S1, preparations before construction:

[0050] Investigate the geological and hydrological conditions of the project; investigate the underground obstacles along the construction line, and take safety protection measures for the buildings and structures above the construction section; check the construction materials and construction equipment; calculate the jacking force and stake out; set up the test section and make records , to reduce the generation of problems in the construction process.

[0051] S2, Excavating the working well:

[0052] Such as figure 1 As shown, the launching pit 1 and the receiving pit 2 are respectively excavated at the head and tail of the construction section. During the excavation process, cement mortar is injected into the soil near the respective side walls of the launching pit 1 and the receiving pit 2 to form a high Strong water-stop wall 3, and t...

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PUM

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Abstract

The invention discloses a river penetrating process. The river penetrating process comprises the following steps that S1, pre-construction is carried out; S2, a working well is excavated; S3, equipment is installed; S4, hoisting is carried out; and S5, a pipe is jacked. The S4 comprises the following steps that S4-1, a pipe jacking machine is hoisted; S4-2, the pipe is hoisted; and S4-3, annular top iron is hoisted. The S5 comprises the following steps that S5-1, the pipe is pushed; and S5-2, detection and deviation rectification are realized. According to the river penetrating process, the problem of difficulty in deviation rectification is solved, and the river penetrating process has the advantage of being capable of correcting deviation during the construction and after completion of the construction.

Description

technical field [0001] The invention relates to the field of municipal engineering, more specifically, it relates to a river crossing process. Background technique [0002] During the construction of pipeline municipal projects such as tunnels and municipal pipelines, there will be situations where pipelines need to cross rivers. Generally, there are three kinds of river crossing techniques, shield tunneling method construction, pipe jacking method construction and directional drilling method construction. Among them, the pipe jacking method has little impact on the construction site and a wide application range, and is more and more widely used in municipal engineering. [0003] The application publication number is CN102537517A, and the application publication date is July 04, 2012. The Chinese patent discloses a pipe jacking construction process in rivers, rivers and lakes. The process steps are as follows: (1) Build a working well, install and debug equipment : Before ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/16F16L1/12F16L1/235
CPCF16L1/123F16L1/16F16L1/235
Inventor 傅建彬尉高洋李佳伟
Owner 杭州水利水电勘测设计院有限公司
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