Unlock instant, AI-driven research and patent intelligence for your innovation.

Flow-state filling material prepared from shale soil and shield slurry and preparation method thereof

A shale and filling technology, applied in the field of fluid type filling materials and preparation, can solve problems such as subsidence and damage of pipelines and access roads, affecting the seismic capacity of foundation projects, and difficulty in ensuring the quality of backfilling projects, so as to solve the problem of on-site transportation. , the construction is convenient, the effect of reducing the production cost

Pending Publication Date: 2021-06-04
金堂波森特新材料有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case that machinery and personnel cannot enter, many backfill projects cannot be rolled and compacted layer by layer under the optimal moisture content according to the specifications, and the covering of virtual soil will inevitably cause future subgrade or foundation settlement, or make the foundation structure in the surrounding "virtual soil" In ", it seriously affects the seismic capacity of the foundation engineering, and due to the lack of compactness of the backfill, the parts of the building, such as water, pipelines, and access roads, are subsidence and damaged, and accidents that lose their use functions occur from time to time.
The above reasons are caused by the fact that the virtual soil cover is caused by the cost on the one hand, and the lack of reasonable technical measures on the other hand, especially for the backfilling of narrow spaces where machinery and personnel cannot enter, it is difficult to guarantee the backfilling project by using traditional techniques. the quality of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention takes crushed and screened shale soil and subway shield mud as main components, adds a debonding agent, a gelling material and water, and stirs through a vibrating mixer to form a fluid filling material.

[0023] The composition of the filling material: 50 parts by weight of shale soil, 30 parts by weight of shield mud, 20 parts by weight of water, 1 part by weight of debonding agent, and 5 parts by weight of cementitious material.

[0024] The particle size of the shale soil is not more than 10cm, the shield mud is a slurry that removes more than 5cm of stones, the water is tap water or reclaimed water or seawater, and the debonding agent is sodium citrate and sodium carbonate According to the mixture of 1:3 by weight, the cementitious material is formulated as follows: 5 parts by weight of phosphogypsum, 80 parts by weight of fly ash, and 5 parts by weight of KOH.

[0025] The preparation method steps are as follows:

[0026] S1. Add the degumming agent...

Embodiment 2

[0028] The invention takes crushed and screened shale soil and subway shield mud as main components, adds a debonding agent, a gelling material and water, and stirs through a vibrating mixer to form a fluid filling material.

[0029] The composition of the filling material: 100 parts by weight of shale soil, 50 parts by weight of shield mud, 60 parts by weight of water, 3 parts by weight of debonding agent, and 20 parts by weight of cementitious material.

[0030] The particle size of the shale soil is not more than 10cm, the shield mud is a slurry that removes more than 5cm of stones, the water is tap water or reclaimed water or seawater, and the debonding agent is sodium citrate and sodium carbonate According to the mixture of 1:3 by weight, the cementitious material is formulated as follows: 10 parts by weight of phosphogypsum, 150 parts by weight of fly ash, and 12 parts by weight of KOH.

[0031] The preparation method steps are as follows:

[0032] S1. Add the degumming...

Embodiment 3

[0034] The invention takes crushed and screened shale soil and subway shield mud as main components, adds a debonding agent, a gelling material and water, and stirs through a vibrating mixer to form a fluid filling material.

[0035] The composition of the filling material: 50 parts by weight of shale soil, 40 parts by weight of shield mud, 40 parts by weight of water, 2 parts by weight of debonding agent, and 12 parts by weight of cementitious material.

[0036] The particle size of the shale soil is not more than 10cm, the shield mud is a slurry that removes more than 5cm of stones, the water is tap water or reclaimed water or seawater, and the debonding agent is sodium citrate and sodium carbonate According to the mixture of 1:3 by weight, the cementitious material is as follows: 7 parts by weight of phosphogypsum, 120 parts by weight of fly ash, and 9 parts by weight of KOH.

[0037] The preparation method steps are as follows:

[0038] S1, add the debonding agent and wat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a flow-state filling material prepared from shale soil and shield slurry and a preparation method of the flow-state filling material. The flow-state filling material comprises the following components in parts by weight: 50-100 parts of shale soil, 30-50 parts of shield slurry, 20-60 parts of water, 1-3 parts of a dispergator and 5-20 parts of a cementing material. According to the flow-state filling material prepared from the shale soil and the shield slurry, rock soil and subway shield slurry can be used as main materials on site, the prepared flow-state filling material is used for backfilling of buildings, municipal administration and traffic engineering, compaction and vibration are not needed, construction is convenient, quality is controllable, meanwhile, the shield slurry can be directly consumed on a large scale, and environmental benefits and economic benefits are outstanding.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fluid-type filling material prepared from shale soil and shield mud and a preparation method thereof. Background technique [0002] In underground engineering construction, mud-water balance shield method tunneling and other construction methods must use bentonite mud to support the tank wall and working face, etc. During the mud circulation, a large amount of waste mud will be generated. Once the waste mud is transported out If it is not smooth, it will affect the construction progress. Its composition and properties are different from municipal mud. It is a suspended liquid mainly composed of clay minerals and contains a certain amount of fine mud particles. The natural settlement and direct dehydration effect is poor. If it is not handled properly, it is easy to cause environmental pollution, damage water quality, block municipal pipelines, etc. harm. [0003] In the past...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B28/14C04B14/10C04B18/04
CPCC04B28/143C04B14/108C04B18/0418C04B18/08C04B22/062C04B24/06C04B22/10Y02W30/91
Inventor 肖丽红熊文学
Owner 金堂波森特新材料有限公司