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Cast-in-place concrete cable conduit construction method

A technology of electric power piping and construction method, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of uneven installation, broken pipes, floating pipes, etc., and achieves simple construction, short construction period, and construction cost. low effect

Inactive Publication Date: 2012-02-22
JINAN URBAN CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common quality problems such as pipe blockage, pipe breakage, pipe floating during pouring concrete, and uneven installation often occur in the construction of cast-in-place concrete pipes.

Method used

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  • Cast-in-place concrete cable conduit construction method
  • Cast-in-place concrete cable conduit construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Trench excavation

[0021] Because the underground pipelines of urban roads are very complicated, when constructing each construction section, carefully excavate trenches manually, dig trenches in the vertical and horizontal sections of the trenches, set one transverse trench every 40 meters, and the depth of the trench reaches 1.5 Meters deep, in case of underground pipelines, the trenches shall be intensified to prevent digging of underground pipelines. Where there are optical cables, electric wires, gas, heat and other pipelines, manual excavation is used, and mechanical construction is strictly prohibited. Before the excavation, the construction personnel should familiarize themselves with the subdivision diagram of the newly repaired pipeline and the original pipeline, and make preparations for the excavation. After the foundation trench is excavated, use a special enclosure for enclosure. The enclosure should be firmly connected. Reinforcement and emergency measu...

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Abstract

The invention provides a cast-in-place concrete cable conduit construction method. Layered laying of cable conduits and layered pouring of concrete are adopted; and the cable conduits are accurately positioned by adopting a cable conduit anti-floating positioning device when the concrete is poured, so that the cable conduits are prevented from floating and shifting, and the construction quality is effectively improved. The method comprises the following steps of: 1) measuring and paying off; 2) digging a foundation trench; 3) setting a pouring template; 4) pouring a reinforced concrete foundation, and arranging positioning steel bars on the concrete foundation piecewise; 5) positioning the laid cable conduits layer by layer by matching an anti-floating positioning bracket and the positioning steel bars, and pouring concrete layer by layer for fixing to the cable conduits between the positioning steel bars; 6) taking down the anti-floating positioning bracket and the positioning steel bars, and filling the holes at the positioning steel bars by using concrete; 7) checking passing of cables passing through the pipes to prevent blockage; 7) plugging pipe orifices by using plastic cloth to prevent sundries; and 8) backfilling soil to the foundation trench, and finishing the construction.

Description

technical field [0001] The invention relates to the technical field of construction of municipal electric power pipes, in particular to a construction method for cast-in-situ concrete electric power pipes. Background technique [0002] In the construction of urban power grids, in order to reduce the overhead power lines known as "visual pollution", protect the urban landscape, and create a good investment environment, the proportion of urban power lines choosing underground cables is getting higher and higher. The laying methods of underground cable lines mainly include: direct burial laying, pipe laying, tunnel laying, etc. Among them, the pipe laying method is suitable for the areas where there are many cables, heavy loads such as motor vehicles, and it is not easy to excavate. Such as: urban roads, green belts, crossing roads and small buildings, etc. [0003] The power pipe is composed of multiple casings arranged in combination. Because of its small footprint, simple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045
Inventor 孙杰
Owner JINAN URBAN CONSTR GRP
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