Construction method for double-wall corrugated pipe

A technology of corrugated pipes and construction methods, applied in the direction of pipe laying and maintenance, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problems of potential safety hazards and easy water leakage, so as to prevent pipe movement, solve water leakage problems, and benefit The effect of widespread use

Inactive Publication Date: 2018-09-28
天津军勇利预应力制品有限公司
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a construction method for a double-wall corrugated pipeline to solve t...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A construction method for a double-wall corrugated pipe, comprising the following steps:

[0032] The first step is to excavate the pipe trench. When excavating the pipe trench, strictly control the base elevation without disturbing the undisturbed soil of the base. During mechanical excavation, retain the undisturbed soil with a design elevation of 10cm of the base. elevation;

[0033] The second step is to replace and fill the overexcavated or disturbed part with 10mm natural graded stone or 30mm crushed stone, and level and compact it;

[0034] The third step is pipeline inspection, which is to conduct visual inspection one by one according to the product standards of pipes and fittings and their connectors. Pipes that do not meet the requirements of the standards cannot be used as construction pipelines;

[0035] The fourth step, during installation, due to the shallow buried depth of the drainage pipes of the project, the pipes are manually lowered. The mouth is ...

Embodiment 2

[0042] A construction method for a double-wall corrugated pipe, comprising the following steps:

[0043] The first step is to excavate the pipe trench. When excavating the pipe trench, strictly control the base elevation without disturbing the undisturbed soil of the base. During mechanical excavation, retain the undisturbed soil with a design elevation of 15cm of the base. elevation;

[0044]The second step is to replace and fill the overexcavated or disturbed part with 15mm natural graded stone or 35mm crushed stone, and level and compact it;

[0045] The third step is pipeline inspection, which is to conduct visual inspection one by one according to the product standards of pipes and fittings and their connectors. Pipes that do not meet the requirements of the standards cannot be used as construction pipelines;

[0046] The fourth step, during installation, due to the shallow buried depth of the drainage pipes of the project, the pipes are manually lowered. The mouth is a...

Embodiment 3

[0053] A construction method for a double-wall corrugated pipe, comprising the following steps:

[0054] The first step is to excavate the pipe trench. When excavating the pipe trench, strictly control the base elevation without disturbing the undisturbed soil of the base. During mechanical excavation, keep the undisturbed soil at the base design elevation of 20cm, and manually excavate to the design level before laying the pipe. elevation;

[0055] The second step is to replace the filling, use 20mm natural graded stone or 40mm crushed stone to replace the overexcavation or disturbed part, level and compact;

[0056] The third step is pipeline inspection, which is to conduct visual inspection one by one according to the product standards of pipes and fittings and their connectors. Pipes that do not meet the requirements of the standards cannot be used as construction pipelines;

[0057] The fourth step, during installation, due to the shallow buried depth of the drainage pip...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of corrugated pipe manufacturing, and particularly relates to a construction method for a double-wall corrugated pipe. The construction method comprises the following steps of (1), pipe trench excavation, specifically, when a pipe trench is excavated, the foundation elevation is controlled strictly, foundation undisturbed soil is not disturbed, in the mechanical excavation process, the foundation undisturbed soil with the designed elevation being 10-20 cm is maintained, and before a pipe is laid, manual excavation is performed to the designed elevation; (2), exchanging-fill, specifically, the excessively-excavated or disturbed part is subjected to changing-fill with natural rockfill materials with the size being 10-20 cm or gravel with the sizebeing 30-40 cm and leveled and tamped; (3), pipe examination, specifically, appearance examination is performed one by one according to stands of pipe products and connecting pieces of the pipe products, and the pipes not meeting the standards cannot be used as construction pipes; (4), installation, specifically, in the installation process, due to the fact that the burial depth of a drainage pipeof the project is small, manual pipe descending is adopted, the pipe descending is required to be steady and free of fierce collision with the trench wall and the groove bottom, an inserting openingof a bell and spigot is in the direction of the water flow, and a bellmouth of the bell and spigot is opposite to the water flow direction.

Description

technical field [0001] The invention belongs to the technical field of corrugated pipe manufacture, and in particular relates to a construction method of a double-wall corrugated pipe. Background technique [0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the direction of folding and stretching. Bellows are widely used in instruments and meters, and their main purpose is as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The bellows has a thinner wall and higher sensitivity, and the measurement range is tens of Pa to tens of MPa. Its open end is fixed, and the sealed end is in a free state, and the auxiliary coil spring or reed is used to increase the elasticity. When working, under the action of internal pressure, it is elongated along the length of the pipe, so that the movable end produces a displacement that has a certain relationship with the pressure. Th...

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): F16L1/028
CPCF16L1/028
Inventor 王勇
Owner 天津军勇利预应力制品有限公司
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