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Novel foundation treatment method

A ground treatment and new method technology, which is applied in the fields of infrastructure engineering, soil protection, construction, etc., can solve problems such as unsatisfactory results, long construction period, and difficult implementation, and achieve easy control of construction quality, continuous treatment of soil, and wide application range wide effect

Inactive Publication Date: 2014-04-02
黄滨 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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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, embankments, 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...

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Abstract

The invention relates to foundation treatment, and in particular relates to a novel foundation treatment method. According to the adopted technical scheme, the method comprises the following steps: performing directional drilling along an engineering trend by using a non-excavation technology, and forming a channel; arranging a grouting pipeline in the formed channel; and performing grouting operation. By adopting the method, people can perform rock foundation construction conveniently, foundations are reinforced, the foundation bearing capacity is increased, foundation settlement is reduced, soil body permeability is reduced, and the risk of tunnel excavation is lowered. The method can be applied to road and site work such as roads, railways (including railways), tunnels, box culverts, airfield runways, parking aprons and container wharfs, water conservancy projects such as seepage prevention in rivers and lakes, building of great aqueducts, anti-seepage dams of rivers and lakes, dams, impounding reservoir projects, water conveyance canals, cutoff walls, settling ponds, water-saving irrigation channels, ports and piers and coastal reclamation, sewage treatment, environmental engineering and the like.

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 Applications(China)
IPC IPC(8): E02D3/12
Inventor 黄滨夏昌郑小华
Owner 黄滨
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