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

A large formwork support method for constructing concrete retaining walls without anchors

A support method and technology of large formwork, applied in construction, underwater structures, infrastructure engineering, etc., can solve problems such as appearance quality and flatness effect that is difficult to achieve with fair-faced concrete, less frequent use of formwork turnover, and increased construction costs. , to achieve the effect of reducing appearance treatment, shortening operation period and simple reinforcement

Active Publication Date: 2020-07-21
CHINA METALLURGICAL CONSTR ENG GRP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this construction method, due to the large number of formwork assembly blocks and the low rigidity of the formwork, the appearance quality and flatness effect of the concrete after forming are generally difficult to meet the requirements of fair-faced concrete, and a large area of ​​grinding is required, and due to the addition of a large number of auxiliary Anchor nails, the number of turnover of the formwork is small, which greatly increases the construction cost

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 large formwork support method for constructing concrete retaining walls without anchors
  • A large formwork support method for constructing concrete retaining walls without anchors
  • A large formwork support method for constructing concrete retaining walls without anchors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] A concrete retaining wall without anchors, comprising concrete retaining wall reinforcement 4, the concrete retaining wall reinforcement 4 is used to construct a concrete retaining wall covering a slope, and also includes a slope protection anchor rod 1 and tie bars 2;

[0020] One end of the slope protection anchor rod 1 is inserted obliquely downward into the rock formation of the slope body, and the other end of the slope protection anchor rod 1 is exposed outside the slope body and runs through the concrete retaining wall reinforcement 4 obliquely upwards and is connected with a cantilever length The middle position of the direction is fixedly connected, and the cantilever abuts against the outer side of the concrete retaining wall reinforcement 4 away from the slope;

[0021] Between the two ends of the cantilever and the rock-entry end located in...

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 large formwork supporting method for constructing an anchoring nail-free concrete retaining wall. The large formwork supporting method comprises the following steps of: carryout section construction by using a reverse construction method from top to bottom, excavating and forming on the slope surface of each section of construction area, drilling a slope protection anchor rod and grouting, wherein the step is characterized in that firstly the two end parts of a cantilever fixed to the outer end of the slope protection anchor rod and the rock-entering end of the slopeprotection anchor rod are integrally welded by using tie bars to form a triangular structure; afterwards, arranging L-shaped counter-pulled lead screws at the two end sockets of the cantilever, wherein the counter-pulled lead screws are used for penetrating counter-pulled holes correspondingly formed in a large formwork; then supporting the large formwork after the concrete retaining wall is bound by steel bars, and fastening the large formwork by using the L-shaped counter-pulled lead screws; and finally, arranging a platform supporting frame suspension and a platform supporting frame on thelarge formwork after the large formwork is installed and fastened, overspreading springboards on the platform supporting frame and installing round steel guardrails, and diagonally bracing the largeformwork by using steel pipes or profile steel so as to reinforce the stability of the large formwork.

Description

technical field [0001] The invention belongs to the field of concrete retaining walls, and in particular relates to a large template support method for constructing concrete retaining walls without anchors. Background technique [0002] In the construction of traditional concrete retaining walls, the formwork support structure is usually assembled with wooden formwork or small steel formwork, and the drawing rod is reinforced by adding auxiliary anchors as the formwork to prevent the single-sided formwork from being damaged when the concrete is poured. Concrete lateral pressure is too large to produce violent mold accidents. In this construction method, due to the large number of formwork assembly blocks and the low rigidity of the formwork, the appearance quality and flatness effect of the concrete after forming are generally difficult to meet the requirements of fair-faced concrete, and a large area of ​​grinding is required, and due to the addition of a large number of au...

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): E02D29/02
CPCE02D29/0275
Inventor 曾从伟纪桂强陈辉陈国民
Owner CHINA METALLURGICAL CONSTR ENG GRP
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