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

Tunnel bolt-shotcrete support concrete integrated pouring formwork and construction method thereof

A construction method and concrete technology, applied in tunnels, tunnel linings, earthwork drilling, etc., can solve the problems of time-consuming and waste

Inactive Publication Date: 2018-09-14
龚岗
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing tunnel anchor shotcrete support concrete spraying takes a lot of time and is seriously wasted

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
  • Tunnel bolt-shotcrete support concrete integrated pouring formwork and construction method thereof
  • Tunnel bolt-shotcrete support concrete integrated pouring formwork and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Further detailed explanation through specific implementation mode below:

[0020] The reference signs in the drawings of the specification include: arc-shaped steel structure 1 and jacking mechanism 2 .

[0021] The implementation of concrete integral pouring formwork and construction method for tunnel anchoring and spraying support is basically as follows figure 1 and figure 2 As shown, the specific steps are as follows:

[0022] Step 1: Treat the surface of the sprayed rock. Generally, the floating dust and cuttings on the sprayed rock surface are washed with high-pressure water.

[0023] Step 2: Concrete mixing and transportation. Wet shotcrete mixing adopts fully automatic metering forced mixer, and transportation adopts concrete transport tank trucks, which are mixed as they are transported. When spraying concrete, multiple transport vehicles should alternately transport materials according to the actual construction situation. Meet the supply of wet shotcrete....

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 relates to the field of tunnel construction and particularly discloses a tunnel bolt-shotcrete support concrete integrated pouring formwork and a construction method thereof. The invention relates to the field tunnel construction and particularly discloses a tunnel bolt-shotcrete support concrete integrated segmental pouring formwork and a construction method. The construction methodcomprises the specific steps of I, treating a rock face to take shooting; II, stirring concrete, and conveying the concrete; III, closing the tunnel wall; IV, putting a pouring formwork in position;V, pouring; VI, maintaining. The single integral pouring is achieved through the integrated steel temperature through the integrated formwork; construction efficiency is high; rebound is greatly avoided; time and resources are saved.

Description

technical field [0001] The invention relates to the field of tunnel construction. Background technique [0002] In tunnel construction, according to the different types of tunnel rocks and excavation sections, tunnel excavation can be divided into full-section method, upper and lower steps method, partial excavation method and other construction methods. According to the principle of the New Austrian Method, as a part of the permanent lining of the tunnel, the bolt-shotcrete support is generally considered to be used in the surrounding rock of grade III and above; the bolt-shotcrete support is used as a flexible support, and the deformation amount before the secondary lining Larger, the outer contour of the excavation needs to reserve a large space (20cm) for deformation; the anchor shotcrete support must be in close contact with the surrounding rock mass as much as possible, that is, to ensure that the support and the surrounding rock act as a The unified support system wo...

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): E21D11/10
CPCE21D11/102E21D11/105
Inventor 龚岗王双卯郭宝库
Owner 龚岗