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Construction method of drainage pipeline

A construction method and drainage pipeline technology, applied in the field of pipelines, can solve problems such as easy bending of formwork, and achieve the effect of enhancing the sealing effect

Active Publication Date: 2017-11-28
温州垠星建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the construction process, the depth of the formwork groove is smaller than the height of the formwork, resulting in the formwork being relatively less supported by the formwork groove when it is squeezed by the concrete, resulting in the formwork being prone to bending, which needs to be improved

Method used

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  • Construction method of drainage pipeline

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Experimental program
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Embodiment Construction

[0037] refer to figure 1 with 2 , a construction method for a drainage pipeline, comprising the steps of:

[0038] Step 1: Construction preparation: According to the design drawings, process the construction site, draw the construction outline, determine the elevation and position of the benchmarking point, prefabricate the pipeline frame, and place construction materials, machinery and personnel in place;

[0039] Step 2: Excavation of pipe trench 1: Calculate and determine the excavation width according to the designed trench bottom width, excavation depth and grading slope, and use a backhoe excavator to excavate backwards, and proceed in the direction of the slope of the pipeline against the current flow;

[0040] Step 3: Construction of flat foundation and cement solidified layer 2: After the excavation of the pipe groove 1 is completed, the elevation of the pipe bottom is measured, and the bottom soil is compacted, and then the ready-mixed lightweight concrete is used...

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Abstract

The invention discloses a construction method of a drainage pipeline. The construction method comprises the following steps that 1, construction preparation is conducted; 2, a pipe groove is excavated; 3, a flat foundation and a cement solidified layer are constructed; 4, a prefabricated pipeline base is hoisted; 5, the pipeline is mounted; 6, a grouting closed body is constructed; 7, concrete backfill construction is conducted, specifically, formworks are inserted into formwork grooves in the two sides of the prefabricated pipeline base, meanwhile, same formworks are arranged at the two ends in an enclosing mode, concrete pouring backfill is conducted, and after concrete is initially set, the formworks are dismantled; and 8, gravel backfill is constructed. Positioning strips are connected to one sides of the formworks, positioning grooves are formed in the prefabricated pipeline base, supporting rods are inserted into the positioning grooves, and the ends, away from the positioning grooves, of the supporting rods are inserted into the included angle positions between the formworks and the positioning strips so as to abut against the formworks and the positioning strips simultaneously. The construction method has the beneficial effects that supporting to the formworks can be strengthened during concrete backfill, and the situation that the formworks are likely to be bent is avoided.

Description

technical field [0001] The invention relates to pipelines, in particular to a construction method for drainage pipelines. Background technique [0002] Drainage system is an important infrastructure of modern cities. Drainage pipes are an essential part of a drainage system. Drainage pipes refer to pipes and channels that collect and discharge sewage, waste water and rainwater. [0003] The Chinese patent whose publication number is CN104895174A discloses a construction method of a large-diameter rainwater and sewage pipeline assembly type component structure. The construction method mainly includes the following steps: construction preparation, pipe groove excavation, foundation leveling, cement solidification layer construction, pipe base hoisting, pipe installation, grouting closure construction, concrete backfill construction and gravel backfill construction. [0004] In this method of construction, when the concrete is backfilled, the concrete compresses the formwork...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/06
CPCE03F3/06
Inventor 童晓曦喻建胜
Owner 温州垠星建设有限公司
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