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A kind of pipe jacking pit construction method

A construction method and technology of working pits, which are applied in the sewer pipeline system, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc., can solve the problems that cannot be directly reused, ring beams and I-beams are prone to damage, and high construction costs and other problems, to achieve the effect of reducing repeated construction costs, easy disassembly and assembly, and high reuse rate

Active Publication Date: 2021-05-11
中煤东方生态建设集团有限公司
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AI Technical Summary

Problems solved by technology

[0004] In the prior art, the construction scheme similar to the above-mentioned pipe jacking pit is generally divided into multiple excavation of the foundation pit, and then a ring beam matched with I-shaped steel is installed in each layer of the foundation pit to play a role in the side of the foundation pit. The effect of protection and support, in order to ensure the connection strength between each ring beam and each ring beam and I-beam, generally can only be connected by welding, so that when disassembling the ring beam and I-beam, it is necessary to De-soldering the ring beam and the I-beam will cause the part of the ring beam and the I-beam to be easily damaged, so that it cannot be directly reused after recycling, and can only be sold to reduce costs, but each construction needs to be repurchased Incoming materials, resulting in more construction costs

Method used

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  • A kind of pipe jacking pit construction method
  • A kind of pipe jacking pit construction method
  • A kind of pipe jacking pit construction method

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] A construction method for a pipe jacking pit, such as figure 1 As shown, it specifically includes the following steps:

[0049] Step 1. Excavating the foundation pit 1, one short end of the foundation pit 1 is the pipe jacking end, and the two long sides of the foundation pit 1 and the pipe jacking end are arranged in a slope shape;

[0050] Step 2: Vibrate the edge of the bottom of the foundation pit 1, and put several pieces of reinforced concrete briquetting blocks 21 with a thickness of 18-25 cm into the foundation pit 1, and each piece of reinforced concrete briquetting blocks 21 is laid on the two sides of the foundation pit 1 respectively The bottom layer of the edge and the jacking end of the jacking pipe, and utilize anchor rods 23 to anchor each piece of reinforced concrete briquette 21 on each slope surface of the foundation pit 1; ...

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Abstract

The invention discloses a construction method for a pipe jacking pit, and relates to the technical field of municipal rainwater pipeline construction. The technical points include step 1, excavating the foundation pit; step 2, vibrating the bottom of the foundation pit, and laying the first layer of reinforced concrete compacts; step 3, continuing to lay reinforced concrete compacts to press the slopes of the foundation pit well; Step 4. Install the I-beam outer support frame to ensure the stability of the reinforced concrete blocks of each layer; Step 5. Install the back wall; Step 6. Install the pipe jacking bracket; Step 7. Backfill. The invention has the advantage of reducing construction cost.

Description

technical field [0001] The invention relates to the technical field of construction of municipal rainwater pipelines, in particular to a construction method for a pipe jacking pit. Background technique [0002] In recent years, with the rapid development of infrastructure construction and the enhancement of people's awareness of environmental protection, pipe jacking construction technology has been widely used as a construction method for laying underground pipelines without excavation in various fields of national economic construction, such as municipal engineering The construction of liquefied gas and natural gas pipelines, water supply and drainage pipelines, gas, heat, electric power, communication engineering, etc. has also developed from the initial hand-digging pipe jacking to mechanical pipe jacking of various calibers and different forms. The pipe jacking project consists of two main processes, construction of the working pit and pipe jacking. The construction uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/028E03F3/06
CPCE03F3/06F16L1/028
Inventor 万叔雄
Owner 中煤东方生态建设集团有限公司
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