Dynamic concrete roadside filling method based on construction waste regeneration

A technology for recycling concrete and construction waste, applied in filling, earthwork drilling, safety devices, etc., can solve the problems of low support capacity, high material consumption, poor sealing performance, etc., achieve efficient recycling, high degree of mechanization, The effect of large support capacity

Inactive Publication Date: 2016-08-17
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional roadside support includes: wooden pile support, dense pillar support, gangue belt support, concrete block support technology, etc. Among them, the main disadvantages of wooden pile support, dense pillar support, and gangue belt support are : slow resistance increase speed, low support capacity, poor sealing performance, high material consumption and low degree of mechanization; concrete block support workers have a large workload and low efficiency, and the speed of retaining lanes cannot keep up with the progress of mechanized rapid coal cutting

Method used

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  • Dynamic concrete roadside filling method based on construction waste regeneration
  • Dynamic concrete roadside filling method based on construction waste regeneration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like Figure 1-2 As shown, a filling method of dynamic concrete roadside based on the recycling of construction waste includes the following steps:

[0032] a. Raw materials, using construction waste to make recycled aggregates;

[0033] B, batching, 50 parts of recycled aggregates obtained in step a, and 10 parts of fly ash, 15 parts of cement, 1 part of sand, and 1 part of quicklime are delivered to the mixer, and the parts are parts by mass;

[0034] c. Stirring. In the mixer described in step b, add water according to the water-solid ratio of 1:2, fully stir the recycled aggregate, fly ash, cement, sand and admixture to obtain recycled concrete;

[0035] d, conveying, the regenerated concrete obtained in step c is transported to the filling pipeline beside the goaf in the coal mine through the conveying pipeline; the conveying pipeline is provided with a pumping mechanism, and the power source of the recycled concrete in the conveying pipeline is the pumping mechan...

Embodiment 2

[0047] Basically the same as Example 1, the difference is: b, batching, 54 parts of recycled aggregates obtained in step a, and 12 parts of fly ash, 17 parts of cement, 2 parts of sand, and 3 parts of gypsum are delivered to the mixer, The parts are parts by mass.

Embodiment 3

[0049] It is basically the same as Example 1, the difference is: b, batching, 70 parts of recycled aggregate obtained in step a, and 15 parts of fly ash, 20 parts of cement, 4 parts of sand, 5 parts of the mixture of gypsum and quicklime are transported In the blender, the parts are parts by mass.

[0050] The present invention is based on the construction waste recycling power concrete roadside filling method, by using the construction waste recycled aggregate and fly ash, cement, sand, and admixtures in the mixer to obtain the construction waste recycled concrete after fully mixing, and then using the coal mine pumping mechanism Under the action of the filling pipe, it flows along the filling pipe, discharges and fills into the filling support of the roadside of the goaf; it can achieve efficient recycling of construction waste and realize the effect of "turning waste into treasure"; the roadside filling support of integral pouring The protection has fast resistance increase...

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Abstract

The invention discloses a dynamic concrete roadside filling method based on construction waste regeneration. The method comprises the following steps of material preparation, proportioning, stirring, conveying and filling. The regenerated concrete prepared from construction waste is filled into a roadside filling support frame of a goaf. The dynamic concrete roadside filling method based on construction waste regeneration has the advantages that the efficient recycle and reuse of the construction waste can be realized; the effect of changing waste materials into valuable materials is achieved; the integrally cast roadside filling support resistance increase speed is high; the support capability is high; the sealing performance is good; and the mechanization degree is high.

Description

technical field [0001] The invention relates to the technical field of recycling of construction waste, in particular to a filling method for dynamic concrete roadsides based on the regeneration of construction waste. Background technique [0002] With the rapid development of my country's economy, the process of urbanization continues to accelerate, the construction of new projects, the demolition of old cities, the reconstruction of roads, etc., will inevitably produce a large amount of construction waste. According to relevant data, the total amount of construction waste in my country accounts for about 30% to 40% of urban waste, and there is an increasing trend year by year. However, my country's current treatment of construction waste is basically open-air stacking or landfill, which not only easily causes secondary pollution and waste of land resources, but also brings great safety hazards. [0003] After the coal mining face is mined, the roadway on the upper working...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00
CPCE21F15/005
Inventor 张成辉石崇刘苏乐金成
Owner HOHAI UNIV
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