Construction method for straight manhole

A construction method and straight-through technology, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve problems such as high construction costs, multiple brick joints, and excessively long periods, shortening the construction period, reducing workload, Strength-enhancing effect

Inactive Publication Date: 2012-03-28
SHANGHAI TELECOMM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a new straight-through manhole construction m

Method used

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  • Construction method for straight manhole
  • Construction method for straight manhole
  • Construction method for straight manhole

Examples

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Example Embodiment

[0023] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0024] The present invention provides a new straight-through manhole construction method. The new manhole construction method includes the following steps:

[0025] 1. The prefabricated manhole is prefabricated with concrete as a whole, which is approximately rectangular parallelepiped shape;

[0026] 2. Use steel bars to reinforce the four corners of the side where the top cover plate needs to be installed; make foundation pit enclosure and foundation pit excavation according to the size of the manhole to form a manhole foundation pit;

[0027] 3. After completion of the manhole foundation pit, pour the concrete foundation;

[0028] 4. Paint the concrete surface impermeability treatment paint on the soil facing surface of the prefabricated manhole, and paste the water-swellable rubber waterstop. The so-called soil facing surface refers to the outer surface of the prefabricated manhol...

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Abstract

The invention relates to a construction method for straight manhole, which comprises the following steps: precasting a manhole, wherein the whole is precast by concrete, which is approximately in shape of a rectangle, and the precast manhole comprises a top cover plate; bracing and excavating a foundation pit according to size of the manhole, for forming a manhole foundation pit; after the manhole foundation pit is finished, grouting the concrete foundation; installing the precast manhole into the manhole foundation pit in way of hoisting via a hoist; and installing the top cover plate and backfilling. The construction method for straight manhole has advantages of short construction period, good tightness, obviously improved intensity, being more durable and capable of reducing probability of safe accidents.

Description

technical field [0001] The invention relates to a construction method of a man well in communication pipeline engineering. Background technique [0002] At present, most pipeline projects involve the construction of manholes. Manholes, also known as manholes, are through holes for line maintenance and maintenance personnel to enter and implement line maintenance and repair. In the communication pipeline project, the man well is used as a node of the pipeline for construction personnel to enter and exit, convenient for construction, maintenance, cleaning and repair, etc., and plays a decisive role in the long-term stability of communication quality. The dimensions of manholes are 1.8×1.4×1.8, 2.0×1.4×1.8, 2.4×1.4×1.8, etc. The traditional process of manhole construction mainly includes: foundation pit enclosure and foundation pit excavation, concrete foundation, brickwork and cement Mortar plastering, roof cover installation, backfilling, post-maintenance. The most common s...

Claims

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Application Information

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IPC IPC(8): E02D29/12
Inventor 顾胜昌钱宝建
Owner SHANGHAI TELECOMM ENG
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