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Reusable back wall for pipeline water pressure test

A hydraulic test and water test technology, which is applied to walls, building components, buildings, etc., can solve the problems of high cost, long construction period, and huge back wall, so as to avoid waste, stabilize the wall, and reduce engineering costs. cost effect

Pending Publication Date: 2018-08-10
惠州市水电建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of the diameter of the pipeline, the magnitude of the horizontal thrust generated by the water pressure in the hydrostatic test and transmitted through the pressure block increases, and the volume of the required back wall becomes larger and larger, not only in terms of technical design and cost There is a certain difficulty in the test, or because the safety problem of the back wall of the large-diameter pipeline is not easy to solve, the hydraulic test is given up.
According to relevant regulations, the length of a hydraulic test pipe section should not be greater than 1.0km. If the overall and one-time on-site pouring of reinforced concrete back wall is adopted, it will take a long construction period (on-site fabrication and installation of steel formwork, on-site pouring and maintenance of concrete, etc.), After the test is completed, it needs to be dismantled and cannot be reused, which costs a lot

Method used

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  • Reusable back wall for pipeline water pressure test
  • Reusable back wall for pipeline water pressure test
  • Reusable back wall for pipeline water pressure test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to Figure 1~2 , a reusable back wall for pipeline hydrostatic testing, including a plurality of prefabricated reinforced concrete stacking blocks 1 stacked and arranged, and each of the prefabricated reinforced concrete stacking blocks 1 is inserted into one body through a plurality of steel rods 2 in series Thus forming the back wall. Each corner of each prefabricated reinforced concrete stacking beam block 1 is preferably provided with steel corner guards for protection, so as to avoid damage caused by bumps during transportation. The front side of the prefabricated reinforced concrete stacked beam block 1 is provided with a plurality of back beams 4, the back beams 4 are used to support the support rods 6, and the back beams 4 disperse the support force of the support rods 6 to the prefabricated steel bars The entire surface of the concrete stacking beam block 1 prevents the support rod 6 from directly acting on a single prefabricated reinforced concrete stac...

Embodiment 2

[0031] refer to image 3 and Figure 4 , the difference between this embodiment and the embodiment is:

[0032] A steel plate pad 3 is provided between the back beam 4 and the prefabricated reinforced concrete stacked beam block 1, and the steel plate pad 3 is added to better disperse the pressure from the support rod 6 to the rear of the entire reinforced concrete stacked beam block 1. The back wall, so that the back wall is not easy to overturn and more stable.

[0033] refer to image 3 , the prefabricated reinforced concrete stacking block 1 is provided with sockets 11 in both the height direction and the width direction, and the size of the prefabricated reinforced concrete stacking block 1 in the height direction is smaller than the size in the width direction; the lower layer The prefabricated reinforced concrete stacking blocks 1 are vertically stacked along the height direction, and the upper prefabricated reinforced concrete stacking blocks 1 are vertically stacke...

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Abstract

The invention discloses a reusable back wall for pipeline water pressure test, comprising a plurality of prefabricated reinforced concrete stoplog blocks (1) stacked; the prefabricated reinforced concrete stoplog blocks (1) are serially inserted via multiple steel bars (2), a plurality of back beams (4) are abutted to the front of the stoplog blocks (1), and the rear of each stoplog block (1) is filled and tamped with earthwork. The reusable back wall is used for pipeline water pressure test.

Description

technical field [0001] The invention relates to the technical field of pipeline water pressure testing equipment and facilities in building construction, in particular to a reusable back wall for pipeline water pressure testing. Background technique [0002] After the completion of the construction of water pipelines, hydraulic tests must be carried out, such as large-diameter prestressed steel cylinder concrete pipelines (PCCP). Sectional functional test, that is, pressure pipeline hydraulic test, safely and effectively detects the leakage of the test section pipeline under the test pressure, and serves as a basis for judging whether the construction quality of the verification project meets the functional design requirements and specification requirements. [0003] Before the hydrostatic test, the required back wall and blocking board must be designed. For small-diameter pressure pipes, when doing hydrostatic tests, the horizontal thrust used to balance and resist the int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/06
CPCE04B2/06
Inventor 郑海强张建平罗长荣林健生刘意兴吴英成李丽燕王付祥王振华孟宪禹余永才骆国柱胡芳胡承豪
Owner 惠州市水电建筑工程有限公司
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