Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Shield cut slurry suitable for sandy water-rich stratum

A water-rich formation and mud technology, applied in mining equipment, earthwork drilling, tunnels, etc., to achieve strong water retention and stability

Active Publication Date: 2021-01-29
CHINA RAILWAY 19TH BUREAU GRP RAIL TRANSIT ENG +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is still a huge room for optimization of cutting mud suitable for sandy water-rich formations

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shield cut slurry suitable for sandy water-rich stratum
  • Shield cut slurry suitable for sandy water-rich stratum
  • Shield cut slurry suitable for sandy water-rich stratum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] refer to Figure 1-Figure 8 , a shield cutting mud suitable for sandy water-rich formations, including:

[0032] Polymer mud, which includes bentonite, clay, water and macromolecule;

[0033] The components in the polymer mud are bentonite 1, clay 3, water 6 and polymer 0.050-0.10 in weight ratio.

[0034] As a specific example, first, through research, on the basis of obtaining the ratio of the incision mud of typical earth pressure shield tunnels at...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a shield cut slurry suitable for a sandy water-rich stratum. The shield cut slurry comprises polymer slurry; the polymer slurry comprises bentonite, clay, water and a polymer;the polymer slurry is prepared from the components in parts by weight: 1 part of the bentonite, 3 parts of the clay, 6 parts of the water and 0.050-0.10 part of the polymer. Comprehensive comparison,selection and optimization are performed from the aspects of slurry viscosity, water tightness, plastic flow property and impermeability of a mixture, and other technical indexes, and the shield cut slurry suitable for the sandy water-rich stratum is formed.

Description

technical field [0001] The invention relates to the technical field of shield tunneling engineering in soft ground, in particular to a shield cutting mud suitable for sandy water-rich strata. Background technique [0002] During the excavation process of the soil shield, the water-tightness and plastic flow behavior of the soil have a great influence on the excavation efficiency and economic benefits of the shield machine, and also affect the service life of the shield machine. Therefore, it is a difficult problem in shield tunneling to prevent mud from blocking the cabin, forming mud cake on the cutter head, and gushing and clogging at the screw conveyor. The success of soil improvement directly affects the shield tunneling mode, tunneling speed and tunneling cost, and even affects the success of the project. [0003] There are four types of incision mud for shield tunneling: bentonite, bentonite plus air bubbles, bentonite plus organic acid, and polymer, which are suitabl...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/12
CPCE21D9/06E21D9/12E21D9/0642
Inventor 张洪斌王颖轶李涛杨晓虎黄醒春殷雪峰罗鸣唐旭李健那迪张家硕
Owner CHINA RAILWAY 19TH BUREAU GRP RAIL TRANSIT ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com