A micro-splitting multi-layer high-vacuum layered pre-compression and compaction construction method

A construction method and high-vacuum technology, applied in infrastructure engineering, construction, soil protection, etc., can solve problems such as low permeability coefficient of coating layer

Active Publication Date: 2022-07-08
中铁一局集团(广州)建设工程有限公司 +1
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Problems solved by technology

[0005] In order to improve the problem of low permeability coefficient of the smear layer, this application provides a micro-splitting multi-layer high-vacuum layered pre-compacting compaction construction method

Method used

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  • A micro-splitting multi-layer high-vacuum layered pre-compression and compaction construction method
  • A micro-splitting multi-layer high-vacuum layered pre-compression and compaction construction method

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Embodiment Construction

[0038] Attached to the following Figure 1-2 This application will be described in further detail.

[0039] The embodiment of the present application discloses a micro-splitting multi-layer high-vacuum layered pre-compression and compaction construction method. refer to figure 1 and figure 2 , a micro-split multi-level high-vacuum layered pre-compression and compaction construction method comprises the following steps:

[0040] 1) Leveling the site and laying the cushion: Use the bulldozer to push the earthwork from the super high place on the construction site and push it to the low-lying part of the site to remove large stones and various impurities, so as not to affect the construction of the plastic drainage board 1. Part of it is replaced, and the replacement is made of plain soil without impurities, and it is leveled to meet the later construction needs. Then backfill a 30cm-thick sand cushion on the ground of the flat construction site. The mud content of the sand ...

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Abstract

The present application relates to a micro-splitting multi-layered high-vacuum layered pre-compression and compaction construction method, which includes site leveling and cushion laying, drainage system construction, freezing system construction, micro-splitting system construction, sealing system construction, loading, Unloading and high vacuum densification steps. The present application has the effect of increasing the permeability coefficient of the coating layer and improving the soil consolidation efficiency.

Description

technical field [0001] The present application relates to the technical field of engineering construction, in particular to a micro-splitting multi-layer high-vacuum layered pre-compression and compaction construction method. Background technique [0002] At present, the vacuum preloading method is an economical and reliable soft soil foundation treatment method developed based on the principle of soil consolidation. In recent years, it has been widely used in various soft soil foundation treatment projects, and has achieved certain results. The vacuum preloading method is to lay a horizontal drainage sand cushion and a vertical drainage body set in the soft base, and then lay an airtight film sealing device on the sand cushion, and use the pipes buried in the sand cushion to pass through the sand cushion. The vacuuming device can form a negative pressure in the soil, and pump out the pore water in the pores of the soil, thereby reducing the pore water pressure, increasing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/10E02D3/115
CPCE02D3/10E02D3/115
Inventor 徐成双蒋进波欧琼何修义童建勇覃庆伟赵凤嘉郭廷周
Owner 中铁一局集团(广州)建设工程有限公司
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