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Isolation type reinforcing method based on soft soil foundation

A soft soil foundation, isolation technology, applied in soil protection, excavation, infrastructure engineering and other directions, can solve the problems of road construction and use impact, low soft soil strength, high construction cost, etc., to improve the reinforcement effect and construction. Efficiency, improvement of strength drop phenomenon, low construction cost and difficulty

Inactive Publication Date: 2021-02-12
福州晶尚设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low strength of soft soil and large amount of sinking, it often brings great harm to road engineering. If it is not handled properly, it will have a great impact on the construction and use of roads.
[0005] The current foundation reinforcement method is mainly to tamp the foundation through a dynamic tamping machine, but when the existing dynamic tamping machine tamps a foundation with high water content, the efficiency is low, and the waste of working hours is serious, which affects the entire construction period. When high-pressure grouting or other methods are used, the construction cost is huge and the construction progress is slow, which is not suitable for low-cost and tight construction projects. In addition, there is no good solution to the impact of water penetration on the reinforcement strength.

Method used

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  • Isolation type reinforcing method based on soft soil foundation
  • Isolation type reinforcing method based on soft soil foundation
  • Isolation type reinforcing method based on soft soil foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see figure 1 , an isolated reinforcement method based on soft soil foundation, including the following steps:

[0046] S1. Excavate a 30cm deep top covering pit on the surface of the area to be reinforced, and then place 1 root / 10m in the top covering pit 2 The density is evenly drilled to set multiple reinforcement pile holes;

[0047] S2. Install the casing to shape the reinforcement pile hole, process the prefabricated pile 1 in the factory in advance, transport it to the site and hoist it into the casing;

[0048] S3. Temporarily locate the prefabricated pile 1, and then take out the casing one by one, and ensure that the hole collapse phenomenon is avoided during the process. After the casing is completely taken out, inject isolation filler into the gap between the prefabricated pile 1 and the reinforced pile hole ;

[0049] S4. After the isolation filler is injected and filled densely, the isolation cladding 2 is formed, the temporary positioning is removed, an...

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Abstract

The invention discloses an isolation type reinforcing method based on a soft soil foundation, and belongs to the technical field of foundation reinforcement. According to the isolation type reinforcing method based on the soft soil foundation, the outer side of a precast pile can be filled with an isolation filler in a precast pile reinforcing mode, an isolation cladding is formed to conduct waterseepage protection on the precast pile, and the isolation cladding and the precast pile form a whole in the mode that concrete is poured after the surface of the foundation is excavated; meanwhile, an isolation piece is pre-buried in the isolation cladding to detect the underground water seepage phenomenon, once the water seepage phenomenon occurs, the feedback action of the isolation piece is triggered in a guiding mode, and a water seepage area is blocked through a magnetic micro-capsule; on the one hand, water in the water seepage area is forced to be rapidly condensed into ice, thus further seepage of the water can be blocked, meanwhile, the water seepage area can be temporarily reinforced, and the phenomenon of strength reduction is improved; and on the other hand, technicians are reminded in time to conduct treatment through temperature change, the construction cost and difficulty are low, and the foundation reinforcing effect and construction efficiency are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of foundation reinforcement, in particular to an isolated reinforcement method based on soft soil foundation. Background technique [0002] The foundation refers to the soil or rock mass that supports the foundation under the building. The soil layers used as building foundations are divided into rocks, gravel soils, sandy soils, silt soils, cohesive soils and artificial fills. There are two types of foundations: natural foundations and artificial foundations (composite foundations). A natural foundation is a natural layer of soil that does not require reinforcement by humans. The artificial foundation needs to be reinforced by human beings, and common stone chip cushions, sand cushions, mixed lime-soil backfill and then compacted, etc. [0003] Before the existing building foundations and foundations are reinforced, the foundations and foundations should be appraised first, and then the reinforcement des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/08E02D3/12E02D17/02E02D17/04E02D3/046
CPCE02D3/00E02D3/046E02D3/08E02D3/12E02D17/02E02D17/04
Inventor 肖涵
Owner 福州晶尚设计有限公司
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