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Method for lifting, leveling and repairing terrace of soft soil foundation and lifting structure thereof

A soft soil foundation and floor technology, which is applied in the direction of basic structure engineering, building maintenance, building construction, etc., can solve the problems that the floor cannot be reinforced to provide sufficient support, the construction difficulty is increased, and the construction period is long, etc. Reduced construction waste, safe and convenient construction, and low project cost

Active Publication Date: 2015-12-09
深圳市苏勘岩土工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method also has many problems such as high cost and long construction period.
In addition, if the soil layer under the floor is a soft soil base, it cannot provide sufficient support for the reinforced floor, making the construction more difficult, which will also lead to continued settlement in the later period

Method used

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  • Method for lifting, leveling and repairing terrace of soft soil foundation and lifting structure thereof
  • Method for lifting, leveling and repairing terrace of soft soil foundation and lifting structure thereof
  • Method for lifting, leveling and repairing terrace of soft soil foundation and lifting structure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a method for lifting, leveling and repairing the floor on a soft soil foundation, see figure 1 , due to the soft soil base 21 under the floor 5, and the soft soil base 21 is a hard soil layer (as figure 2 As shown), the present invention makes full use of the hard soil layer to repair the subsidence caused by the soft soil base 21 under the floor 5 to meet the requirements of flatness. The method specifically includes the following steps 1 to 6:

[0037] Step 1: Drill lifting holes 1 in at least one place of the floor 5, separate the concrete base 7 within the range of each lifting hole 1 from the surrounding ground 5 and take it out for later use. The concrete base 7 can be used as a jack 8 in the later stage (details See below), the lifting hole 1 is preferably drilled with a geological drilling rig.

[0038] Step 2, drill vertically downwards in each lifting hole 1 and insert a reinforcement pile 16 inserted into the soft soil base 21 under...

Embodiment 2

[0045] like figure 2 As shown, when the area of ​​the warehouse 20 and the floor 5 below it is large, the settlement depth of the large-area floor 5 is uneven, and it is in the shape of a pot with a deep middle and a shallow edge, requiring multiple lifting structures 100 to work together to level It is more difficult. On the basis of Example 1, this example also provides a method for lifting, leveling and repairing a large-area floor, which specifically includes the following steps 1 to 6:

[0046] In step 1, a plurality of lifting holes 1 are evenly drilled in the floor 5, so that the concrete base 7 within the scope of the lifting holes 1 is separated from the surrounding floor 5 and taken out for use. The lifting holes 1 are preferably arranged in a square or an equilateral triangle on the floor 5, such as Figure 4 As shown, the spacing is 2-5m.

[0047] Step 2, drill vertically downwards in each lifting hole 1 and insert a reinforcement pile 16 inserted into the soft ...

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Abstract

A method for lifting, leveling and repairing the terrace of a soft soil foundation and a lifting structure thereof are provided. The lifting structure comprises a terrace (5) in which multiple lifting holes (1) are arranged through drilling, concrete bases (7), multiple anchor rods (6) implanted into the terrace (5) around the lifting holes (1), lifting counterforce frames (9), jacks (8) used to jack the lifting counterforce frames (9), and reinforcing piles (16). Each lifting counterforce frame (9) is fixedly connected with the anchor rods (6) around the corresponding lifting hole (1). A soft soil base layer (21) is arranged under the terrace (5), and a hard soil layer (22) is arranged under the soft soil base layer (21). The reinforcing piles (16) are arranged in the soft soil base layer (21) under the lifting holes (1) through drilling and extend into the hard soil layer (22). Each concrete base (7) is placed on the top of the corresponding reinforcing pile (16). Each jack (8) is supported on the top of the corresponding concrete base (7), and abuts against the bottom of the corresponding lifting counterforce frame (9). The method and the lifting structure have the advantages of good repair effect, convenient construction, and realization of construction on a soft soil foundation.

Description

technical field [0001] The invention relates to the field of building foundation reinforcement and floor restoration, in particular to a floor lifting on soft soil foundations proposed for the problem of uneven settlement and deformation of floors such as warehouse buildings and roads and further deepening of settlement due to soft soil foundations Methods of leveling restoration and its lifting structures. Background technique [0002] With the rapid development of my country's modern logistics industry, various large-scale cargo warehouses are also increasing. However, most of the warehouses are built on fill or weak soil foundations. Due to the large business volume of the industry, too many materials are often piled inside the warehouses. , the load on the foundation is large, so the problem of uneven floor settlement often occurs inside the storage building, resulting in a "concave" or "pot-shaped" indoor floor, and even the maximum settlement of the center point of some...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E02D35/00E04F15/12
Inventor 嵇林张爱军陆进吴圣伟陈冬辉嵇超祝思明曾华健郭佳兴李冠泽
Owner 深圳市苏勘岩土工程有限公司
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