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Construction method of water diversion in inland river project

A construction method and engineering technology, applied in water conservancy projects, artificial waterways, sea area engineering, etc., can solve problems such as the collapse of slope protection structures on both sides of the bank, the collapse of earth dams, etc., and achieve the effects of convenient construction, strong adaptability, and high compressive strength

Active Publication Date: 2015-12-09
CCCC SHANGHAI DREDGING
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  • Claims
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Problems solved by technology

Although the above two methods are convenient for construction, if the water diversion is not careful, the earth dam will easily lead to dam failure after being washed out, and the slope protection structures on both sides may also be washed away

Method used

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  • Construction method of water diversion in inland river project
  • Construction method of water diversion in inland river project
  • Construction method of water diversion in inland river project

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0042] see figure 1 , this embodiment will describe the inland river water diversion process in detail in conjunction with the L base inland river project.

[0043] Step (1): According to the condition of the intercepted Q River 1 and the specific requirements of the new waterway 3 project, set the cross-sectional size of the water retaining dam 2, that is, the top width, bottom width, top elevation, bottom elevation and two heights of the water retaining earth dam 2. side slope ratio.

[0044] see figure 2 , the highest water level of the intercepted Q River 1 is +2.8m, the elevation of the top of the revetment and retaining walls on both sides of the Q River is +3.4m, and the elevation of the top of the retaining earth dam 2 can be determined as +3.5m by referring to the elevation of the revetment and retaining walls. Considering that the exca...

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Abstract

A water diversion construction method of an inland river project comprises the following steps of: (1) setting a cross section dimension of a water earth dam, (2) carrying out water seepage damage checking and antiskid stability checking on the cross section dimension of the water earth dam, (3) setting the number of water conduits and diameters of the water conduits, (4) constructing the water earth dam and burying the water conduits, (5) constructing protecting facilities around inlets and outlets of the water conduits, (6) guiding water, and (7) dismantling the dam to discharge the water. Compared with the prior art, the method has the advantages that the buried HDPE (high-density polyethylene) conduits have higher water diversion controllability, and in case of emergency, further worsening can be inhibited timely by blocking water inlet pipe orifices one by one. The water diversion construction method is convenient, quick, safe, reliable and economical.

Description

technical field [0001] The invention relates to a water diversion construction method for an inland river project, in particular to a construction method for inland river water diversion by using a pre-buried water diversion pipe. Background technique [0002] In recent years, the construction of my country's inland shipping infrastructure is in full swing, especially the excavation of new waterways. Generally, the new waterway will be excavated to the design bottom elevation and after the construction of slope protection structures on both banks is completed, water diversion construction will be carried out. Nowadays, water diversion generally adopts dam-breaking water diversion technology and overflow weir water diversion technology. That is to reserve an earth dam between the water source and the newly-built channel first, and when the conditions for water diversion are met, excavate trenches in the earth dam to divert water, or lower the elevation of the earth dam to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B5/04E02B7/02E02B8/00
Inventor 郭玉祥周鹏王建毛旭东
Owner CCCC SHANGHAI DREDGING
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