Stress-controller multi-level-open anchor stock and anchor construction method

A technology of stress control and bolting, applied in excavation, infrastructure engineering, construction, etc., can solve the problems of uneconomical anchoring force effect, waste material stability, high mortar strength requirements, etc., to achieve a large anchoring influence range and convenient on-site organization , Improve the effect of anchoring effect

Active Publication Date: 2017-05-31
CHONGQING UNIV +1
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the anchoring effect, the traditional type of bolt can only increase the length of the anchor section, increase the number of anchor bolts, and improve the strength of the mortar. It often has the following disadvantages: 1. The anchor section is too long to make the anchor length too long, which is uneconomical. And the effect of increasing the anchoring force is general
2. Anchor rods are often set

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
  • Stress-controller multi-level-open anchor stock and anchor construction method
  • Stress-controller multi-level-open anchor stock and anchor construction method
  • Stress-controller multi-level-open anchor stock and anchor construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Manufacture the stress-controlled expansion bolt, where N=3, M=6, that is, the casing 2 assembly is composed of three casings 2, and there are 6 slits on each casing 2, and the bottom of the maximum size decreases upward when it is opened , the opening sequence is bottom priority and upward. The specific steps are:

[0062] S1: Process slits, select three-section casing 2 of different lengths according to requirements, process 6 slits at predetermined positions, divide the slit area of ​​casing 2 into 6 strips, and mark the casing 2 with the largest slit length It is L1, the sleeve 2 with the smallest slot length is marked as L3, and the slot length in the middle is marked as L2. L3 is the bottom sleeve 2.

[0063] S2: Processing groove 8, processing groove 8 at the upper and lower ends and the middle position of each strip of each section of casing 2, processing the groove 8 at the upper and lower ends on the outer wall of casing 2, and processing the middle groove 8...

Embodiment 2

[0070] Use the stress control expansion bolt in embodiment 1 to carry out construction, such as Figure 7 shown. The surface of the bolt casing 2 is rough with patterns, and each section of the casing 2 is processed with an expansion joint 7 at the set position. Through the expansion joint 7, the section of the casing 2 can be divided into six strips, and each section has three strips. There are two grooves 8, and the strip can be bent and opened along the grooves 8, and the positions of the grooves 8 are different in the slot length of each section of the sleeve pipe 2, and the maximum size of the bottom of the opening decreases upwards. The depth of the groove 8 of the casing 2 near the base is 1 / 2 of the thickness of the pipe wall, and the depth of the groove 8 of the casing 2 decreases in turn, and the depth of the groove 8 of the uppermost casing 2 is 1 / 3 of the thickness of the pipe wall. The tube 2 is connected to the base 5 through threads, the three-section casing 2 ...

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 stress-controller multi-level-open anchor arm and an anchor construction method. The stress-controller multi-level-open anchor arm comprises a screw rod. A base is fixed to an anchoring end. A free end passes a pallet. The space between the pallet and the end portion of the free end is the free section of the screw rod. The screw rod section between the pallet and the base forms the anchoring section. Adjusting screw nuts are screwed in the free section. A sleeve pipe is mounted on the anchoring section in a sleeving mode. M expansion seams which are in parallel with the axial direction of the screw rod are formed in the sleeve pipe to make M stripes be formed between the expansion seams. Z grooves are formed in each stripe. Two adjacent grooves on a same stripe are separately arranged in the inner wall and outer wall of the sleeve pipe in a crisscrossing mode. The stress-controller multi-level-open anchor stock has the advantages of being good in anchoring effect, small in use amount, low in process requirement, strong in anti-pulling capacity and the like. The method comprises the steps of assembling anchor arms, cleaning sites, drilling holes, cleaning holes, installing anchor arms, grouting and the like. The method has the advantages of being fast in construction speed, simple in process procedure and the like.

Description

technical field [0001] The invention belongs to the field of bolt support, and in particular relates to a stress-controlled multi-stage open bolt and an anchoring construction method. Background technique [0002] Anchor bolts have been widely used in today's construction projects. Bolt support is a reinforcement and support method used in surface engineering such as slopes, deep foundation pits, and underground chambers such as tunnels and stopes. The common forms of anchors are: pressure anchors, tension anchors, prestressed anchors, pressure dispersion anchors and tension dispersion anchors. However, these different types of bolts have their own limitations, and they cannot meet the requirements of bearing capacity and stability and economy, and at the same time, they can be constructed reasonably and conveniently. [0003] The general type of bolt support is to use a drilling machine to drill holes in the position where support is required, then place the anchor rod in ...

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): E02D5/76E02D17/20E02D17/04
CPCE02D5/76E02D17/04E02D17/20
Inventor 卢谅杨东智贤平王宗建刘汉龙胡世兴
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap