Method for Installing Prestressed Steel Cylindrical Concrete Pipe in Narrow Space in Casing

A prestressed steel and concrete pipe technology, applied in the direction of pipes/pipe joints/fittings, pipe laying and maintenance, machinery and equipment, etc., can solve problems such as limited site space, and achieve the effect of short construction period, flexible use and less investment.

Inactive Publication Date: 2011-11-30
CHINA CONSTR SECOND ENG BUREAU LTD
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large prestressed steel cylinder concrete pipes are installed in the large casing in the river bottom tunnel. The prestressed steel cylinder concrete pipes are hoisted to the working surface through two shafts o

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
  • Method for Installing Prestressed Steel Cylindrical Concrete Pipe in Narrow Space in Casing
  • Method for Installing Prestressed Steel Cylindrical Concrete Pipe in Narrow Space in Casing
  • Method for Installing Prestressed Steel Cylindrical Concrete Pipe in Narrow Space in Casing

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Such as figure 1 , figure 2 As shown, the method of installing a prestressed steel cylinder concrete pipe in a narrow space in the casing of the present invention. Including pre-engineering fixed-point measurement before installing the pre-stressed steel cylinder concrete pipe 3, releasing the axis of the jacking pipe, and leading the high-rise control point to the operation shaft 1; setting a seal at the joint before the two pre-stressed steel cylinder concrete pipes 3 are connected At the joint of the two pre-stressed steel cylinder concrete pipes 3 with the seals installed, the inside of the pipe is pressed for a sealing test, and the outside of the pipe is grouted and sealed. The process steps also include:

[0028] Step 1. Fix the steel rail sleeper pad on the inner wall of the casing 2. Two parallel and straight rails 5 with the same top elevation are fixed on the rail sleeper pad. The two rails 5 form an angle of 60° and are perpendicular to the casing 2. The rails ...

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 method for mounting a prestress steel cylinder concrete pipe in a narrow space in a sleeve. The sleeve comprises an inner pipe and an outer pipe. The method comprises the following steps of: measuring at fixed points before construction; setting an axis, carrying out bulge test and grouting; fixing and laying steel rails in the outer pipe; placing a trolley for loading the inner pipe on the steel rails; jacking the trolley up at a specific position, and taking the trolley back; placing a three-way regulating device which regulates the inner pipe in the three-dimensional direction below the trolley; fixedly connecting a permanent steel gasket below the inner pipe after regulation; and carrying out bulge test and grouting seal at the junction of two inner pipes which are equipped with seal pieces, and mounting the inner pipes in the sleeve section by section sequentially until the finish of the construction. According to the the method, the prestress steel cylinder concrete pipe with the diameter of 2m is installed in the sleeve with the inner diameter of 3m, the sleeve is internally provided with two steel rails for loading the trolley, and the difficulty in the installation of the prestress steel cylinder concrete pipe in the sleeve is overcome; a jack and a winch are both minitype devices, the trolley is self-manufactured in field, the investment is less, and the cost is low; and the construction cycle is short, the proceed is rapid, and the mounting quality is good.

Description

technical field [0001] The invention relates to a pipeline installation method of a water supply and drainage system, in particular to a construction method for installing a φ2m prestressed steel cylinder concrete pipe in a φ3m concrete casing. Background technique [0002] In water supply and drainage projects, a large concentric prestressed steel cylinder concrete pipe (PCCP) is installed in a large casing, and a similar prior art is to install a prestressed steel cylinder concrete pipe in a tunnel. Install the prestressed steel cylinder concrete pipe in the tunnel, and use a special pipe truck for the transportation and installation of the prestressed steel cylinder concrete pipe. Use the pipe truck to install the prestressed steel cylinder concrete pipe. To install the backing plate, the bottom of the backing plate needs to be poured with concrete, which not only takes up a lot of space, but also has high cost and expense. Large prestressed steel cylinder concrete pipes...

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): F16L1/00
Inventor 黄远超杨忠军
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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