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Method for repairing damage of underwater concrete panel slope protection

An underwater concrete and repair method technology, which is applied in the repair of basic structures, excavation, coastline protection, etc., can solve the problems of difficult to understand the cause and degree of damage of underwater concrete slope protection, poor structural reliability, and damage to concrete slope protection, etc., to achieve Good bleeding and anti-dispersion properties, less work, and less work

Inactive Publication Date: 2008-06-18
CHINA THREE GORGES UNIV +2
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Problems solved by technology

Although the use of mold bag concrete for underwater slope protection repair does not require cofferdam construction, saves investment, and has no adverse effects on navigation, but most slope protection repairs are carried out underwater, which is a hidden project with a certain degree of blindness and structural reliability. It is poor, and it is not easy to find out the cause and degree of damage of underwater concrete slope protection, and it cannot fundamentally solve the problem of concrete slope protection damage

Method used

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  • Method for repairing damage of underwater concrete panel slope protection
  • Method for repairing damage of underwater concrete panel slope protection

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Embodiment

[0010] Example: Local damage repair of concrete slope protection in the 5.3-5.55km section of the upper right bank of the Gezhouba Sanjiang Channel (left side of the anti-silting embankment). The thickness of the concrete slope protection varies from 0.3 to 0.6m, the slope ratios are 1:3, 1:4, and 1:5, and the elevation of the dike crest is 70m.

[0011] First, clean up the sundries and silt accumulated at the damaged opening 1 of the concrete panel slope protection 7, remove the broken concrete block, and allow the damaged opening 1 to appear completely. Then according to the size and shape of the damaged opening 1, the periphery is made into a plugging die bag 2 that is greater than the damaged opening 150mm, and the thickness is substantially equal to the damaged opening depth. Then carry out the positioning of the mold bag 2. When the mold bag 2 is lowered, the diver first fixes its periphery. Before fixing, the positioning must be carried out according to the measurement ...

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Abstract

A preparation method of the damage of the protection slopes of underwater concrete slabs is applicable to the preparation of the damage of the protection slopes of the underwater concrete slabs of waterways, dikes, dams, bank slopes, etc. In the method, underwater detection is carried out, mould bags with a suitable size are customized according to the position and the shape of a damage hole, mould bag concrete is positioned and casted, after the mould bag concrete blocks the damage hole, an infusion hole and a water outlet are bored at proper positions above the damage hole, a duct is applied to infuse underwater non-dispersible concrete from the infusion hole, the self-compaction and anti-dispersibility of the underwater non-dispersible concrete is utilized to fill up the cavity, seeper is drained out of the water outlet, consequently, the cavity is filled up, and the rupture and the collapse of the damaged slab can be prevented. The present invention does not need to build a cofferdam, underwater human operation is relatively less, engineering quantities and construction difficulties are reduced and the cost is decreased; because the underwater non-dispersible concrete is utilized in the concreting construction, the construction is safe and the water body is not polluted; a waterway is not needed to be closed up, so navigation is not affected.

Description

technical field [0001] The invention relates to a method for repairing damaged slope protection of underwater concrete panels such as waterways, dikes, dams and bank slopes. Background technique [0002] The traditional underwater slope protection repair methods include building cofferdams for repair and using bagged concrete for repair. Building cofferdams for underwater slope protection restoration requires a large amount of work, high cost, and difficult construction. At the same time, it will occupy the waterway, hinder navigation, and may also involve environmental protection issues. Although the use of mold bag concrete for underwater slope protection repair does not require cofferdam construction, saves investment, and has no adverse effects on navigation, but most slope protection repairs are carried out underwater, which is a hidden project with a certain degree of blindness and structural reliability. It is relatively poor, and it is not easy to find out the cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D37/00E02B3/12E02B3/06
Inventor 邱卫民刘黎明徐睿许文年汪大贵胡纪生
Owner CHINA THREE GORGES UNIV
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