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Large-depth underwater water supply pipe sinking construction process

A construction technology and water supply pipe technology, which is applied in the field of large-depth underwater water supply pipe immersed pipe construction technology, can solve problems such as the inability to meet the underwater slotting requirements of immersed pipe construction, shorten the construction period, reduce construction difficulty and cost, and solve the problem of digging deep not enough effect

Active Publication Date: 2021-07-27
中设科欣设计集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that traditional immersed tube construction requires a dredger to cooperate with excavating pipeline trenches. When the water depth is too large and exceeds the limit digging depth of the excavator, it cannot meet the underwater groove requirements of immersed tube construction. Immersed pipe construction technology of large depth underwater water supply pipe

Method used

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  • Large-depth underwater water supply pipe sinking construction process
  • Large-depth underwater water supply pipe sinking construction process
  • Large-depth underwater water supply pipe sinking construction process

Examples

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Effect test

Embodiment 1

[0039] Embodiment 1: An immersed pipe construction process for a large-depth underwater water supply pipe, comprising the following steps:

[0040] Step a, determine the pipeline layout; explore the underwater terrain, select a flat pipeline layout, and pour townships 5 at both ends of the pipeline layout, the township structure is as follows figure 2 , 3 As shown, the town pier 5 is anchored on the underwater bedrock through the anchor rod 8, and the town pier is provided with a guide groove 6 inclined from the shore foundation to the bottom of the water;

[0041] Step b. Pipeline traction: use the empty pipe traction method, take one side of the bank as the construction site, block the front end of the pipeline 1, and use the construction ship to pull the front end of the pipeline along the pipeline layout to the other side of the bank. Simultaneously connect the pipelines in series until the front end of the pipeline is drawn to the shore foundation on the other side, and...

Embodiment 2

[0045] Embodiment 2: A kind of immersed pipe construction technology of deep water bottom water supply pipe, such as figure 1 shown, including the following steps:

[0046] Step a, the pipe layout route is determined; survey the underwater topography, select a flat pipe distribution route with a silt layer of 2-10 meters at the bottom of the water, and pour townships 5 at both ends of the pipe distribution route. The township structure is as follows figure 2 , 3 As shown, the township 5 is anchored on the bedrock of the water bank through the anchor rod 8, and the township is provided with a guide groove 6 inclined from the bank foundation to the water bottom, and a number of counterweight supports are provided on the township to fix the pipeline entering and leaving the water. The counterweight at the end, excavate trenches and lay sand and gravel foundations in the shallow water on both sides of the water area to form a transition section 7, the upper end of the transition...

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Abstract

The invention relates to a large-depth underwater water supply pipe sinking construction process, and solves the problems that the traditional pipe sinking construction needs a dredger to be matched with to excavate a pipeline groove, and when the water depth is too large and exceeds the ultimate excavation depth of an excavator, the construction requirement cannot be met. The construction process comprises the steps of A, determining a pipeline arrangement line; B, carrying out pipeline traction; C, sinking a pipeline; D, carrying out lateral weight balancing; and E, fixing water inlet and outlet ends of the pipeline. By means of the large-depth underwater water supply pipe sinking construction process, the construction problem that the large ships and instruments need to be matched in the traditional pipe sinking construction is solved, meanwhile, the problem that the excavating depth of the traditional pipe sinking construction excavator in a large-depth water area is not enough is solved, and the underwater operation is little, so that the construction difficulty and cost are greatly reduced, and the construction period is shortened.

Description

technical field [0001] The invention belongs to the field of engineering construction, and relates to an immersed tube construction process of a water supply pipeline, in particular to an immersed tube construction process of a deep underwater water supply pipe. Background technique [0002] At present, the construction methods used for water supply pipelines crossing rivers, lakes and other waters usually fall into the following categories: pipe erection with bridge, separate pipe bridge erection, traction construction, pipe jacking construction and immersed pipe construction, etc. [0003] With the bridge erection, the load of the pipeline needs to be considered in the design of the bridge. This method is relatively inexpensive, and it is easy to maintain and repair later. It is the most widely used in municipal projects. Bridge pipe is a better solution. [0004] Installing a separate pipe bridge requires building a separate pipe bridge. Although it is convenient for mai...

Claims

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Application Information

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IPC IPC(8): E02F5/00E02F5/02E02F5/10E02F9/00E02D29/073
CPCE02F5/00E02F5/006E02F5/02E02F5/10E02F5/104E02F9/00E02D29/073
Inventor 华勇勇陈锦张伟军马国平李蓉蓉刘亚文洪婷吴璐颖缪泽远
Owner 中设科欣设计集团有限公司