Soft soil subgrade reinforcing method

A soft soil subgrade and soil technology, applied in the field of building construction, can solve the problems of general preloading drainage reinforcement effect and so on

Inactive Publication Date: 2019-03-22
安徽鸿宇路桥工程有限公司
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  • Abstract
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Problems solved by technology

[0004] Therefore, reinforcement treatment is required for soft soil subgrades. At present, there is a method ...

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  • Soft soil subgrade reinforcing method

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Embodiment Construction

[0032] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0033] A soft soil embankment reinforcement method, such as figure 1 , including the following steps:

[0034] S1, construction preparation, clearing and leveling the site in the pre-pressing area 1 to be processed;

[0035] S2, the sand cushion layer 2 is laid on the site after S1 is leveled, and the drainage board 4 and the pressurized pipe 51 are laid in the soil body, the drainage board 4 is vertically driven into the soil body, and the drainage pipe 61 is buried in the sand cushion layer 2 , the drainage pipe 61 has a water inlet hole, and is covered by a filter layer; the drainage pipe 61 i...

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Abstract

The invention discloses a soft soil subgrade reinforcing method. The method comprises the following steps: S1, leveling land in a to-be-treated preloading zone; S2, laying a sand cushion, arranging drain boards and a booster pipe into soil mass, embedding a drainage pipeline, connecting the drainage pipeline with a water suction pump and connecting the booster pipe with a booster pump; S3, embedding vertical vacuum pipes and a horizontal vacuum pipe in the sand cushion, connecting the horizontal vacuum pipe with a vacuum pump, and staggering the vertical vacuum pipes and the horizontal vacuumpipe with the drain boards; S4, laying a seal film; S5, digging a seal ditch along the peripheral outer edge of the preloading zone; S6, starting the vacuum pump for vacuum preloading consolidation operation, and then starting the water suction pump when water in the preloading zone enters the sand cushion; S7, starting the booster pump and stopping the booster pump 15-20 min before vacuum preloading consolidation is finished; S8, removing a preloading device and performing grouting for sealing; S9, performing compaction with a press. Soft soil reinforcing strength can be increased effectively.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a soft soil roadbed reinforcement method. Background technique [0002] Soft soil roadbed refers to a common roadbed in a special area. Requires special design handling. It is mostly distributed in rivers, rivers, ocean coasts, inland lakes, ponds, basins and rainy mountain depressions. Soft soils are characterized by high water content, poor permeability, low natural strength and high compressibility. If the critical height is exceeded, the foundation will lose its stability. Commonly used treatment measures for soft soil foundation include soil replacement, drainage sand cushion, back pressure berm, riprap for silting, cement-soil mixing, surface reinforcement with civil fabrics, and sand well reinforcement. [0003] Before the construction of the construction project, the foundation must be reinforced as needed to improve the strength, bearing capacity and stability of...

Claims

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Application Information

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IPC IPC(8): E01C3/00E02D3/10E01C3/04
CPCE01C3/00E01C3/04E02D3/10
Inventor 魏刚汪庭周魏鑫张妨
Owner 安徽鸿宇路桥工程有限公司
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