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Soft soil foundation treatment method

A treatment method and soft soil foundation technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of prolonging the construction time of the project and the long construction period of the piled load, so as to shorten the construction period, improve the bearing capacity, reduce the The effect of subsidence after minor work

Inactive Publication Date: 2019-01-01
湖北安达泰建设工程有限公司
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Problems solved by technology

[0005] However, this method requires long-term stacking, and the construction period of stacking is long, which prolongs the construction time of the whole project.

Method used

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  • Soft soil foundation treatment method

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Embodiment

[0036] Such as figure 1 Shown, a kind of soft ground treatment method comprises the following steps:

[0037] The first step is to pump water. During construction, surveyors release the toe line according to the height and slope of the subgrade filling to be constructed, determine the scope of dredging, and sprinkle the line with lime. When changing the line, it is necessary to exceed the toe line by 0.5m to avoid underfilling. Excavate or over-excavate, and then use water pumps to pump out the surface water to be constructed, so as not to affect further construction.

[0038] The second step is dredging. Before dredging, lay a temporary construction platform on the road surface to prevent mechanical subsidence. The temporary construction platform can be a wooden board with a thickness of not less than 6cm, a length of not less than 3.5m, and a width of not less than 2.5m. , or trees with a diameter of not less than 10cm are bound to a raft that is not less than 4m in growth ...

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Abstract

The invention relates to a soft soil foundation treatment method, and belongs to the technical field of municipal road construction. The problem of long construction period is solved. A water pump isused for extracting ponding of soil surface to be constructed; after the water is drained, an excavator is matched with manual work, mud is excavated and a foundation pit is formed, a rainproof dam isbuilt along the edge of the foundation pit, and a seepage prevention board is built on the side wall of the foundation pit; gravel or pebbles is / are used for laying a foundation bed rock-filled layerwith a height of 30cm; the foundation bed rock-filled layer is crushed by adopting a vibratory roller; a transition layer is laid with plain soil with a particle size of 15 cm, and then compacted andflatted by a road roller and a heavy hammer; main force direction of laid grids needs to be through without joints, and frames are connected by artificially binding lap joint, the width of a lap joint is 10cm, and then a covering layer is laid; and cement is transported onto the covering layer by a load carrier, then the cement is paved, and levelling is performed after the paving is completed bythe road roller. The anti-settling ability of a foundation of a field road is improved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of municipal road construction, in particular to a soft ground treatment method. Background technique [0002] At present, during the construction of municipal roads, construction on soft soil is often encountered, and the usual form of soft foundation treatment is "drainage, fixed connection and surcharge preloading treatment". [0003] Due to its engineering characteristics such as high water content, high compressibility, poor water permeability, low strength and long time required for deformation stability, soft soil generally cannot be used directly as a natural foundation. subsidence or uneven subsidence. Subgrade settlement is the main cause of subgrade deformation and damage. Therefore, whether the treatment of soft soil foundation is appropriate or not will not only affect the investment of the project, but also directly affect the performance of the road and the quality of the project. [0004] D...

Claims

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Application Information

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IPC IPC(8): E02D3/046E02D3/10
CPCE02D3/046E02D3/10
Inventor 周才刚
Owner 湖北安达泰建设工程有限公司
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