Self-anchored internally-penetrating nodular cast iron pipe mounting method

A technology of ductile iron pipes and installation methods, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of difficult construction and many interfaces, and achieve improved safety, good anti-corrosion performance, Good sealing effect

Inactive Publication Date: 2021-07-09
CHINA TIESIJU CIVIL ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the construction of large-diameter and long-distance water pipelines, if PE pipes are used for construction, there are many interfaces and the construction is difficult

Method used

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  • Self-anchored internally-penetrating nodular cast iron pipe mounting method
  • Self-anchored internally-penetrating nodular cast iron pipe mounting method

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Embodiment Construction

[0027] Combine below Figure 1-2 The present invention is further described, but the protection scope of the present invention is not limited to the content.

[0028] Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer "respectively refer to directions toward or away from the geometric center of a specific component, and the drawings are all in a very simplified form and use inaccurate ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0029] For the sake of clarity, not all features of an actual embodiment are described. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention with unnecessary detail and ...

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PUM

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Abstract

The invention discloses a self-anchored internally-penetrating nodular cast iron pipe mounting method. The method comprises the following steps that 1, a steel rail is positioned; 2, the steel rail is laid; 3, self-anchoring pipe connectors are installed; 4, a hoop and a self-anchoring pipe main body (4) are installed; 5, a power structure is penetrated; 6, jacking operation is carried out; and 7, grouting is carried out. The self-anchored internally-penetrating nodular cast iron pipe mounting method has the beneficial effects that the pipeline connectors are automatically anchored, the sealing performance is good, and the safety in the construction process is greatly improved; and a steel protective sleeve is firstly jacked, then a self-anchored nodular cast iron pipe penetrates through the steel protective sleeve, the middle is filled with slurry, so that the anti-corrosion performance is good.

Description

technical field [0001] The invention relates to a method for installing a self-anchored inner-piercing ductile iron pipe, which belongs to the technical field of inner-piercing spherical pipe installation. Background technique [0002] Pipe jacking construction is a non-excavation construction method, and it is a pipeline burying construction technology that does not excavate or excavates less. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the earth away. In the construction of large-diameter and long-distance water pipelines, if PE pipes are used for construction, there are many interfaces and the construction is difficult. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a self-anchored inner-piercing ...

Claims

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Application Information

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IPC IPC(8): F16L1/028F16L1/06
CPCF16L1/028F16L1/06
Inventor 付立宏王希勇周江张雪生郭明威陈宏华张伟杨哲林志帅葛威
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD
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