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Grouting method for ultrathin high polymer cutoff wall

A high polymer and anti-seepage wall technology, which is applied in water conservancy projects, sea area projects, protection devices, etc., can solve problems such as difficult to ensure the anti-seepage system, and achieve the effect of fast construction, convenient construction and cost saving

Active Publication Date: 2013-11-13
SAFEKEY ENG TECHZHENGZHOU
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

"Dike anti-seepage polymer directional splitting grouting method" and "polymer curtain grouting technology" have created a new way to construct thin-sheet polymer anti-seepage body, but the formed anti-seepage body is lap-shaped anti-seepage body. seepage body, it is difficult to ensure the formation of a continuous anti-seepage system

Method used

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  • Grouting method for ultrathin high polymer cutoff wall
  • Grouting method for ultrathin high polymer cutoff wall
  • Grouting method for ultrathin high polymer cutoff wall

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Embodiment Construction

[0034] According to the anti-seepage design requirements of dams, three-cone pressure grooved plates and pressure grooved equipment are used to form continuous slots in dams and foundations that need anti-seepage reinforcement; two-component expansibility is injected into the slots through grouting pipes Polymer grouting material; the volume of polymer grouting material expands rapidly after chemical reaction, fills the slot and solidifies to form a polymer sheet; the polymer sheets of adjacent slots are tightly bonded together , forming a continuous, uniform and regular ultra-thin polymer cut-off wall, so as to achieve the purpose of improving the seepage performance of the dam.

[0035] The specific implementation steps are:

[0036] (1) Slot hole layout: In the dam body and foundation that need anti-seepage reinforcement, slot holes are arranged according to the design, and the slot holes are numbered.

[0037] (2) Slot hole construction: use three-cone pressure to form sl...

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Abstract

The invention discloses a grouting method for an ultrathin high polymer cutoff wall, wherein continuous groove holes are constructed and formed in a dam and a foundation required to be turned into anti-seepage and consolidated according to the anti-seepage design requirement of the dam; two-component dilatant high polymer grouting materials are grouted into the groove holes through a grouting pipe; the high polymer grouting materials are quickly dilated after chemical reaction, then fill the groove holes to the brim and are solidified to form high polymer thin slice bodies, and the thin slice bodies in the neighboring groove holes are closely bonded, so as to form the continuous, uniform and regular ultrathin high polymer cutoff wall. The invention is highly distinct from the existing technology of the cutoff wall in aspects as material, mechanism, construction method and the like, has advantages of being quick, ultrathin, mini-wound, light, highly tenacious, economic, durable and the like, is successfully applied to multiple risk-removing consolidating projects of reservoir dams and embankment, and has huge economic and social benefits as well as wide development and application prospects.

Description

technical field [0001] The invention belongs to the technical field of anti-seepage and reinforcement of infrastructures such as water conservancy, mining, and environmental protection, and in particular relates to a grouting method for anti-seepage and reinforcement of ultra-thin polymer anti-seepage walls such as earth embankments, earth dams, tailings dams, and sewage interception dams. Background technique [0002] Since the founding of New China, my country's water conservancy, mining, environmental protection and other infrastructure construction have achieved world-renowned achievements, which have played an important role in my country's economic development and social progress. In terms of water conservancy infrastructure construction, since the vast majority of water conservancy facilities in my country were built in the 1950s to 1970s, limited by the economic and technological conditions at that time, the design and construction quality of many reservoirs were "inh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D15/02E02B3/16E02D31/00
Inventor 王复明石明生刘文廷钟燕辉王小亮
Owner SAFEKEY ENG TECHZHENGZHOU
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