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Backfilling slurry as well as preparation method and application thereof

A mud and cement technology, which is applied in the field of backfill mud and its preparation, can solve the problems of poor stability, poor durability, and poor support of backfill mud, and achieve the effects of reduced grouting volume, excellent durability, and reduced tension

Active Publication Date: 2019-01-15
SHANGHAI ROAD & BRIDGE (GRP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a kind of backfill mud and its preparation method and application in order to overcome the defects of poor stability, poor support, easy diffusion and poor durability of backfill mud existing in the prior art. Backfilling mud has excellent stability, support, anti-diffusion and durability, and can be used in pipe jacking and pipe withdrawal projects

Method used

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  • Backfilling slurry as well as preparation method and application thereof
  • Backfilling slurry as well as preparation method and application thereof
  • Backfilling slurry as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh each component in the following parts by mass:

[0036]

[0037] Add the above components into the mixer and stir evenly to obtain backfill mud.

Embodiment 2

[0039]

[0040] Add the above components into the mixer and stir evenly to obtain backfill mud.

Embodiment 3

[0042]

[0043]

[0044] Add the above components into the mixer and stir evenly to obtain backfill mud.

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Abstract

The invention discloses backfilling slurry as well as a preparation method and application thereof. The backfilling slurry is prepared from the following ingredients in parts by mass: 445 to 455 partsof water, 260 to 265 parts of clay, 30 to 35 parts of cement, 4 to 5 parts of basic inorganic matters, 2 to 3 parts of soil curing agents and 1 part of polyacrylamide. The backfilling slurry has theadvantages of high stability, support protection performance, diffusion prevention performance and excellent durability, and can be used for pipe jacking and withdrawal projects.

Description

technical field [0001] The invention relates to a backfill mud and its preparation method and application. Background technique [0002] During the construction process of pipe jacking, important underground structures, complex strata or other conditions may be encountered, making it impossible to continue jacking. At this time, it is necessary to abandon the original jacking plan and re-plan the jacking axis. However, abandoned pipelines may cause obstacles to the construction of new underground pipelines in the future, and may also cause secondary disasters, so the original pipelines should be recycled. For pipelines with shallow buried depth, the buried pipeline can be directly taken out through ground excavation. For pipelines with deeper buried depths, it is necessary to withdraw them along the jacking line in the opening of the jacking pipeline. When the pipeline structure is withdrawn, it is necessary to backfill the exit position of the pipeline in time, which is ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00663C04B22/002C04B14/10C04B22/10C04B24/2652C04B2103/0068
Inventor 甄亮王剑锋张涛廖晨聪王文章王帅
Owner SHANGHAI ROAD & BRIDGE (GRP) CO LTD
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