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Method for filling dam by combining sludge-filled bags and vacuum preloading

A technology of mud bags and dams, which is applied in dikes, dams, climate change adaptation, etc., can solve the problems of slow drainage and consolidation speed, and achieve the effect of saving engineering costs and significant reinforcement

Inactive Publication Date: 2013-07-17
SHANGHAI WATERWAY ENG DESIGN & CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Compared with the traditional technology, the present invention solves the problem of slow drainage and consolidation speed of filled silt soil due to the vacuum preloading and drainage channels

Method used

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  • Method for filling dam by combining sludge-filled bags and vacuum preloading
  • Method for filling dam by combining sludge-filled bags and vacuum preloading
  • Method for filling dam by combining sludge-filled bags and vacuum preloading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one: see Figure 6 , on the beach or on the ground, all or part of the first structure of filling mud bags 1 is used (see image 3 , Figure 5 ), fill in layers to form the initial section of the embankment core structure; an interlayer drainage layer 6 (plastic drainage board, non-woven geotextile, drainage mat, permeable pipe) is set between the layers filled with mud bags 1, and the interlayer drainage Layer 6 is on both sides of the initial section of the embankment core structure and the surface drainage layer 5 (sand cushion, bagged sand cushion, bagged gravel cushion, bagged melon seed slice cushion, drainage sand quilt, non-woven geotextile , drainage mats, other non-adhesive material cushions) are connected. Lay the surface drainage layer 5 and the water filter pipe 10 on the surface of the initial section of the embankment core structure (including the top, side slopes, inner and outer platforms) and the beach surface or ground adjacent to the ini...

Embodiment 2

[0029] Embodiment two: see Figure 7 , the interlayer drainage layer 6 (plastic drainage board, non-woven geotextile, drainage mat, permeable pipe) and the second type interlayer drainage layer 7 (sand cushion, drainage sand quilt) are set in the interlayer combination of filling mud bag 1 , sand ribs, gravel cushions, bagged sand cushions, bagged gravel cushions, bagged melon seed slice cushions, and other non-adhesive material cushions), drain water on both sides of the initial section of the embankment core structure and on the surface Layer 5 (sand cushion, bagged sand cushion, bagged gravel cushion, bagged melon seed slice cushion, drainage sand quilt, non-woven geotextile, drainage mat, other non-adhesive material cushion) is connected. All the other are the same as embodiment one.

Embodiment 3

[0030] Embodiment three: see Figure 8 , on the beach or on the ground, the second structure of filling mud bags 1 is adopted in whole or in part (see Figure 4 , Figure 5 ), fill in layers to form the initial section of the embankment core structure. All the other are with embodiment two.

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Abstract

The invention discloses a method for filling a dam by combining sludge-filled bags and vacuum preloading and relates to the field of dam filling projects. The technical scheme adopted by the invention is that the method comprises the following steps of filling sludge into filling bags to form the sludge-filled bags, and performing layered filling to form an initial section of a breakwater core structure of the dam; arranging interlayer drainage layers, surface drainage layers and strainers, connecting the strainers with a vacuum pump through a vacuum pipeline, and communicating the interlayer drainage layers, the surface drainage layers, the strainers and the vacuum pipeline to form drainage channels; and paving diaphragm seals, and starting the vacuum pump to preload the sludge-filled bags and gradually pump out moisture in the sludge-filled bags to gradually solidify the sludge in the sludge-filled bags to form a final section of the breakwater core structure of the dam. The method for filling the dam by combining the sludge-filled bags and the vacuum preloading is used for various dam projects that beach faces are located underwater or in water table fluctuation zones and various onshore dam projects to fill the breakwater core structure of the dam by utilizing the sludge.

Description

technical field [0001] The invention belongs to the field of filling dam engineering. Background technique [0002] Filling bags are also called bagged sand, mud-filled tube bags, and sand-filled tube bags. In recent years, filling bags have been widely used in various dyke projects. The filling bags are made of geotextiles, and the filling bags can be filled with sand. In order to meet the needs of the drainage and consolidation speed of the filling bag, rapid construction, and ensure the stability of the bag body during the construction period, the sand material is generally sandy soil or silty soil, and the particle content of ≤0.005mm is ≤15%. [0003] The conjoined tubular filling bag (CN 201095741Y) consists of a plurality of horizontally independent tubular filling bags connected through adjacent filling cuffs to form a conjoined tubular filling bag, which is filled with muddy soil to form a conjoined tubular filling bag. The gap between the tubular filling bags fac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/10
CPCY02A10/11
Inventor 马兴华黄东海周海顾勇
Owner SHANGHAI WATERWAY ENG DESIGN & CONSULTING
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