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A treatment method for desert engineering foundation pre-soaked water dynamic compaction

A treatment method and pre-soaking technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve the problems that cannot meet the desert foundation characteristics and affect the construction process, and achieve the reduction of the gap between sand grains, the increase of viscosity, and the promotion of pressure. The effect of the real process

Active Publication Date: 2022-04-12
SINOPEC NORTHWEST OIL FIELD
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a pre-soaked water dynamic compaction treatment method for desert engineering foundations, which solves the problem that the existing methods cannot satisfy the characteristics of desert foundations and affect the construction process

Method used

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  • A treatment method for desert engineering foundation pre-soaked water dynamic compaction
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  • A treatment method for desert engineering foundation pre-soaked water dynamic compaction

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Embodiment

[0036] Such as Figure 1-3 As shown, the embodiment of the present invention provides a desert engineering foundation pre-soaked water dynamic compaction treatment method, comprising the following steps:

[0037] Step 1 Determine the scope of foundation construction

[0038] According to the pre-determined construction scope of the desert foundation 1, use steel pipes with a spacing of 2.5-3m and an embedded depth of 1-1.5m to surround the edge. After the laying of the cushion layer 3 is completed, the steel pipe will block the cushion layer 3, This can reduce the displacement of the cushion layer 3 during the rolling process, making the previously defined construction scope unclear, and then use excavators and bulldozers to backfill and level the construction scope of the desert foundation 1, and then use small-tonnage road rollers Carry out preliminary rolling within the construction range of the desert foundation 1, so that the desert foundation 1 is initially compacted, w...

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Abstract

The invention provides a desert engineering foundation pre-soaked water dynamic compaction treatment method, which relates to the technical field of civil engineering. The desert engineering foundation pre-soaked water dynamic compaction treatment method includes the following steps: step 1 to determine the scope of the foundation construction, step 2 to embed the embedded pier and fill the cushion layer, step 3 to bury the prefabricated injection pipe, and step 4 to bury the soaking pipe, Step 5 is pre-soaking water treatment, step 6 is dynamic compaction treatment, and step 7 is prefabricated injection pipe pressing. In the steps of the present invention, by gradually compacting and laying a cushion layer, the work of the dynamic compaction machine can be supported in the later stage of the project, preventing the desert foundation from sliding so that the dynamic compaction work cannot achieve the best effect, and loess, clay, and chitosan are used Mixed with water and injected under high pressure, the gap between the sand grains of the desert foundation is reduced, the viscosity is increased, and the water retention is also suitable. After the prefabricated pile is pressed, the sand is drained and backfilled and the prefabricated injection pipe is pressed down to increase the load-bearing capacity of the desert foundation. Meet the requirements of engineering construction.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a treatment method for pre-soaked water dynamic compaction of desert engineering foundations. Background technique [0002] In the prior art, prefabricated pile method, vibratory compaction method, deep mixing method, high-pressure injection grouting method, bored pile method, steel pipe pile method, and vibro-sinking pile method are applied to the foundation treatment of desert engineering. There are problems that the site of use does not match and the cost of use is not suitable. The combination of pre-soaking water and dynamic compaction can solve the problem that the characteristics of the desert foundation affect the construction process. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provides a pre-soaked water dynamic compaction treatment method for the desert enginee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/02E02D3/026E02D3/054E02D3/10E02D3/12E02D5/30
CPCE02D3/02E02D3/026E02D3/054E02D3/10E02D3/12E02D5/30
Inventor 战征汤晟刘文胜杨新勇梁根生翟双岭武韦韦赵德银孙永尧韩霞韩林黎志敏
Owner SINOPEC NORTHWEST OIL FIELD
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