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A ground treatment method

A technology for foundation treatment and construction method, applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve problems such as unsatisfactory effect, long construction period, difficult implementation, etc., and achieve easy control of construction quality, continuous soil treatment, and use wide range of effects

Inactive Publication Date: 2016-05-25
黄滨 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, because the above-mentioned subway tunnels are built in prosperous places, etc., the implementation of the three treatment methods is usually very difficult, the construction period is long, and the effect is not ideal

Method used

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 As shown, the directional drilling along the project direction and the formation of tunnels in the present invention refer to the directional drilling parallel to the project direction in the linear engineering (such as underground buildings such as subway tunnels) along the direction of the project direction. The construction method of forming the tunnel.

[0026] The specific implementation steps are: divide the section to be reinforced into one or several working sections along the direction of the tunnel, carry out directional drilling along the project direction in each working section, and lay grouting pipes 3 in the formed tunnels, according to the design requirements Perform soil grouting. For the soil treatment under underground buildings (structures) such as (subway) tunnels 2, it can be carried out before the project construction starts, or it can be carried out during the project use stage according to the needs, and the imple...

Embodiment 2

[0027] Embodiment 2: as figure 2 As shown, the directional drilling along the project direction and the formation of tunnels in the present invention refer to the construction of directional drilling parallel to the project direction and forming tunnels above the project direction in linear projects (such as mountain tunnels) method.

[0028] According to the steps described in the above-mentioned embodiment 1, the soil is treated before the excavation of the mountain tunnel, so as to achieve the effect of strengthening the soil and waterproofing, and effectively prevent the cave roof from collapsing when the tunnel is excavated. It avoids the problems of conventional tunnel excavation while supporting and excavating, which is a waste of time and has high risks. It can also realize the reinforcement of the tunnel roof under the condition of uninterrupted use of the tunnel, which is impossible with conventional tunnel reinforcement technology.

Embodiment 3

[0029] Embodiment 3: as image 3 , 4 As shown, the directional drilling along the project direction and the formation of tunnels in the present invention refer to the multi-directional directional drilling parallel to the project direction carried out in the planar engineering (such as airports, dams, etc.) below the project direction. The construction method of holes and forming tunnels.

[0030] For planar projects such as airports, according to the steps described in the above-mentioned embodiment 1, the linear project foundation treatment method is applied in two directions, and a sufficient number of unidirectional drilling, pipe laying, and grouting can also be carried out according to the width of the project surface.

[0031] For projects such as dams, according to the steps described in the above-mentioned embodiment 1, directional drilling, pipe layout, and grouting in the dam can not only strengthen the strength of the dam itself, but also improve the imperm...

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Abstract

The invention relates to foundation treatment, in particular to a new method for foundation treatment. The technical solution adopted by the present invention is: use the non-excavation technology to carry out directional drilling along the project direction to form tunnels, arrange grouting pipelines in the formed tunnels, and perform grouting operations. The invention enables people to conveniently carry out rock and soil foundation construction, thereby achieving foundation reinforcement, improvement of foundation soil bearing capacity, reduction of foundation settlement, reduction of soil permeability and risk of tunnel excavation. The present invention can be applied to: 1. In road and site engineering, such as highway, railway (including subway), tunnel, box culvert, airport runway, parking apron, container terminal, etc.; Seepage, construction of large-scale canals, anti-seepage dams of rivers and lakes, dams, reservoir pond projects, water delivery channels, water barriers, sedimentation tanks, water-saving irrigation canals, port terminals, land reclamation, etc.; 3. Sewage treatment and environmental protection engineering etc.

Description

technical field [0001] The invention relates to foundation treatment, in particular to a new method for foundation treatment. Background technique [0002] In order to improve the bearing capacity of the foundation soil and reduce the foundation settlement or soil permeability of buildings (structures), the foundation soil needs to be treated. Common methods for foundation deep treatment include cement-soil mixing pile method, grouting method, and rotary jetting pile method. The three soil reinforcement methods are all operated point by point on the ground of the reinforced soil in a vertical manner. [0003] The grouting method refers to the use of hydraulic, pneumatic or electrochemical principles to uniformly inject soil curing agents (cement and various new soil curing agents) that can improve and enhance the technical performance of the soil into the soil layer through the grouting pipe. , infiltration and compaction, etc., to drive away the moisture and air between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
Inventor 黄滨夏昌郑小华
Owner 黄滨
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