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Construction waste squeezing silt backfill method

A technology for construction waste and river ponds, which is applied in construction, soil protection, infrastructure engineering and other directions, can solve problems such as hidden dangers of construction site and operator safety, pile breaking accidents, heavy workload, etc., to save sludge treatment costs, The effect of saving emission cost and good stability

Active Publication Date: 2009-02-11
JIANGSU DAHAN CONSTR INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other is the unorganized backfill method, that is, the river pond is backfilled in an unorganized state, and the construction waste or domestic waste is directly dumped into the river pond. The unorganized backfill method will cause the surface to be hard and the inside to be weak , as a natural foundation, the silt must be dug out for replacement, and the workload is very large. Pile breakage accidents often occur when pile foundations are used for piling, which brings safety hazards to the construction site and operators. So far, there is no good solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0011] The composition of construction waste used for foundation backfill is mainly a mixture of bricks, tiles, concrete blocks, mortar blocks and their debris and dust. The particle size is generally required to be no more than 200mm, and large pieces of construction waste must be crushed. After use, it must not contain impurities such as organic substances and plastics.

[0012] Construction machinery: Backhoe excavators and construction waste handling facilities.

[0013] Construction method:

[0014] (1) Drain the water in the pond;

[0015] (2) Transport the construction waste to the area to be backfilled, dig up the construction waste with a backhoe excavator, and throw it into the river pond silt along the edge of the river pond. After the construction waste is placed on the surface of the silt, use a backhoe excavator Squeeze down hard, due to the high fluidity of the silt, the silt is squeezed out by the construction waste, and part of the silt is filled in the gaps...

specific example

[0019] Three groups in a residential area cover an area of ​​40,000m 2 , of which 2000m of unorganized backfilled ponds 2 (It was landfilled by domestic waste before demolition and construction waste after demolition). During the construction, it could only be disposed of by replacement and replacement with clay. The total cost was 260,000 yuan, and it took half a year to complete the treatment; the nine groups of adjacent projects Covers an area of ​​60000m 2 , of which the pond water area is 50,000m 2 , used the demolished construction waste as backfill to carry out silt squeeze treatment, which met the design requirements, the total cost was only 530,000 yuan, and it took only half a year; another nearby project did not deal with unorganized backfill, and used C70 high-strength Prestressed pipe pile foundation, during the piling construction, due to the hard surface and soft middle, the integrity test was carried out after the pile was driven, and it was found that all th...

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PUM

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Abstract

The invention relates to disposal of the building garbage left behind by removal of buildings in the construction industry and the silt caused by backfilling of ponds, in particular to the method of backfilling ponds of silt squeezing out by building garbage. The invention uses the building garbage to backfill ponds, under the repeated squeezing of a backhoe shovel and due to the good hydroscopic property of the building garbage, the moisture of the slit is absorbed by the building garbage when the slit is scattered into the gap of the building garbage by appropriate proportion, and the silt, with the good filling and adhesion properties, can completely fill the gaps of the construction garbage under external force and can adhere to the building garbage. The method can solve the problems of emission of the building garbage and slit disposal, and also can solve the foundation problem at the soft soil area such as ponds.

Description

technical field [0001] The invention relates to the treatment of construction waste left in the demolition of buildings in the construction industry and the treatment of silt in the case of backfilling river ponds, in particular to a method for backfilling river ponds squeezed by construction waste. Background technique [0002] At present, large-scale economic construction (especially new rural construction) is going on in China, and house demolition and house construction are often carried out. When the house is demolished, a large amount of construction waste (bricks, tiles, block concrete and the resulting particles, dust, etc.) will be generated after the demolition of the building. The disposal of these construction waste will cause environmental pollution. At the same time, when building houses in areas with weak soil such as rivers and ponds, it is difficult to deal with the weak soil foundation. There are currently two treatment methods, one is the replacement meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/08
Inventor 宋功业张哲华曹建兵
Owner JIANGSU DAHAN CONSTR INDAL GROUP