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

A kind of anti-twist method for shaft tunneling

An anti-twist and vertical shaft technology, which is applied to shaft equipment, well sinking, earth-moving drilling, etc., can solve the problems of low reliability of shaft driving, easy rotation of shield body and segment, affecting driving efficiency, etc., so as to improve reliability and efficiency. The effect of excavation efficiency and simple operation

Active Publication Date: 2022-07-12
SINOHYDRO JIAJIANG HYDRAULIC MACHINERY +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The shaft tunneling machine disclosed in this patent document improves the working efficiency of the shaft tunneling machine by realizing the walking-type tunneling state, but the shield body and segments are still easy to rotate during shaft tunneling, resulting in low shaft tunneling reliability and affecting tunneling efficiency

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
  • A kind of anti-twist method for shaft tunneling
  • A kind of anti-twist method for shaft tunneling
  • A kind of anti-twist method for shaft tunneling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see Figure 1-Figure 3 , a shaft tunneling anti-twist method, comprising the following steps:

[0036] a. Wellhead excavation and foundation construction, install and fix the frame 1 of the roadheader on the ground plane, hoist the arc-shaped steel pipe sheets by a crane, and assemble and connect a plurality of arc-shaped steel pipe sheets to form a ring-shaped steel pipe 2;

[0037] b. The pressing mechanism works, the pressing oil cylinder 3 extends and pushes the friction pad 4 to the annular steel pipe 2 and compresses the outer wall of the annular steel tube 2. The friction pad 4 transmits the pressing force to the shield body 5, and the excavation is carried out. The cutter head 6 of the machine starts the excavation operation;

[0038] c. After the excavation operation is completed, the pressing oil cylinder 3 is retracted, the friction pad 4 is pulled away from the annular steel pipe 2, the reset oil cylinder 7 is retracted, the pressing oil cylinder 3 is lifte...

Embodiment 2

[0041] see Figure 1-Figure 3 , a shaft tunneling anti-twist method, comprising the following steps:

[0042] a. Wellhead excavation and foundation construction, install and fix the frame 1 of the roadheader on the ground plane, hoist the arc-shaped steel pipe sheets by a crane, and assemble and connect a plurality of arc-shaped steel pipe sheets to form a ring-shaped steel pipe 2;

[0043] b. The pressing mechanism works, the pressing oil cylinder 3 extends and pushes the friction pad 4 to the annular steel pipe 2 and compresses the outer wall of the annular steel tube 2. The friction pad 4 transmits the pressing force to the shield body 5, and the excavation is carried out. The cutter head 6 of the machine starts the excavation operation;

[0044] c. After the excavation operation is completed, the pressing oil cylinder 3 is retracted, the friction pad 4 is pulled away from the annular steel pipe 2, the reset oil cylinder 7 is retracted, the pressing oil cylinder 3 is lifte...

Embodiment 3

[0048] see Figure 1-Figure 3 , a shaft tunneling anti-twist method, comprising the following steps:

[0049] a. Wellhead excavation and foundation construction, install and fix the frame 1 of the roadheader on the ground plane, hoist the arc-shaped steel pipe sheets by a crane, and assemble and connect a plurality of arc-shaped steel pipe sheets to form a ring-shaped steel pipe 2;

[0050] b. The pressing mechanism works, the pressing oil cylinder 3 extends and pushes the friction pad 4 to the annular steel pipe 2 and compresses the outer wall of the annular steel tube 2. The friction pad 4 transmits the pressing force to the shield body 5, and the excavation is carried out. The cutter head 6 of the machine starts the excavation operation;

[0051] c. After the excavation operation is completed, the pressing oil cylinder 3 is retracted, the friction pad 4 is pulled away from the annular steel pipe 2, the reset oil cylinder 7 is retracted, the pressing oil cylinder 3 is lifte...

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 an anti-twist method for shaft excavation, belonging to the technical field of shaft construction. The tightening cylinder stretches out and pushes the friction pad to the annular steel pipe and compresses the outer wall of the annular steel tube. The friction pad transmits the pressing force to the shield body, and the cutter head of the roadheader starts the driving operation; c. After the tunneling operation is completed , the compression cylinder is retracted, the friction pad is pulled away from the annular steel pipe, the reset cylinder is retracted, the compression cylinder is lifted up, and the friction pad is moved up and reset to the initial position, and the compression cylinder is extended again to remove the friction pad. Push the ring-shaped steel pipe and press the outer wall of the ring-shaped steel pipe for the next cycle of excavation. The invention can effectively prevent the shield body and the arc-shaped steel pipe sheet from rotating during the tunneling of the vertical shaft, which is beneficial to improve the reliability and the tunneling efficiency of the tunneling of the vertical shaft, and the operation is simple and easy.

Description

technical field [0001] The invention relates to the technical field of shaft construction, in particular to a torsion-prevention method for shaft excavation. Background technique [0002] A well-shaped pipe with an upright wall is called a shaft, and the shaft is actually a collapse funnel. Shafts are square, elongated or irregularly circular in plan profile. The elongated shape develops along one set of joints, and the square or round shape develops along two sets of joints. The walls of the well are steep and almost upright. [0003] Shafts are widely used in water conservancy and hydropower projects for water intake, water diversion, ventilation and exhaust, slag slippage and air supply. Shaft construction has the characteristics of small footprint and less interference to surrounding construction. However, due to the small construction space, long construction period, many climbing and edge operations, and inconvenient traffic, the safety risks of vertical shaft const...

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 Patents(China)
IPC IPC(8): E21D1/08E21D1/06E21D5/10E21D5/12E21D7/00
CPCE21D1/08E21D1/06E21D5/10E21D5/12E21D7/00Y02E10/20
Inventor 曾文杨芳张君松周任伟夏理范如谷顾杨丹
Owner SINOHYDRO JIAJIANG HYDRAULIC MACHINERY
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