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Foundation strengthening treatment method

A treatment method and foundation reinforcement technology, which are applied in basic structure engineering, soil protection, construction, etc., to achieve the effect of saving construction investment, shortening construction period, and broad application prospects

Active Publication Date: 2014-08-13
中国水利水电第七工程局成都水电建设工程有限公司
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AI Technical Summary

Problems solved by technology

The problem to be solved by the present invention is to provide a water conservancy and hydropower foundation reinforcement treatment method technology. The present invention can effectively solve the problem of reinforcement treatment of geological defects that cannot be excavated, solve anti-seepage treatment projects, and even replace excavation. Similar to related engineering technical difficulties in complex projects, shorten the construction period, improve project quality, reduce project costs, save investment in hydropower station construction, and ensure safety during the construction and operation periods of the power station

Method used

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Embodiment Construction

[0026] The present invention is further described by the following examples. This example is only used to further illustrate the present invention, but it cannot be interpreted as limiting the protection scope of the present invention. Essential improvements and adjustments belong to the protection scope of the present invention.

[0027] combine figure 1 , figure 1 It is the technical process of the method of the present invention. Ground stabilization treatment techniques including drilling, flushing, backfilling, high pressure supplementary grouting and quality inspection steps.

[0028] (1) drilling

[0029] The drilling diameter of the main flushing hole is not less than φ300mm. The formation of the flushing channel can be formed by drilling from low elevation to high elevation, or from high elevation to low elevation. The direction of the hole can refer to geological survey data or actual drilling The slag return situation is determined, and the azimuth and apex angl...

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Abstract

The invention discloses a foundation strengthening treatment method comprising the following steps of drilling, washing, backfilling, carrying out high-pressure supplementary grouting and checking the quality. The drilling step mainly comprises the steps of drilling a main washing hole and / or an auxiliary washing hole; and the washing step mainly comprises the steps of washing, backfilling and carrying out high-pressure supplementary grouting under regulated conditions. The foundation strengthening treatment method disclosed by the invention effectively solves the strengthening treatment problem of a geological defect part which cannot be dug, solves impermeable treatment engineering and even can replace digging; the foundation strengthening treatment method solves the technical difficulty of relative engineering in the similar complicated engineering, shortens the work period, improves the engineering quality, reduces the engineering cost, saves the building investment of a hydropower station and guarantees the safety of a construction period and an operation period of the power station; and the foundation strengthening treatment method has important real guide meanings to supporting engineering, is used for accumulating data and providing reference to the similar engineering and the relative engineering, and has a wide application prospect in national western hydroelectric development and construction.

Description

technical field [0001] The invention belongs to the technical field of building foundation reinforcement, in particular to the technical field of geological foundation reinforcement of water conservancy and hydroelectric dams, and particularly relates to a concrete reinforcement treatment technology. Background technique [0002] In the construction of water conservancy and hydropower, it is often necessary to reinforce the building foundation. Fault treatment is a major problem in the foundation treatment of large-scale hydropower and water conservancy projects. With the continuous and rapid development of China's economic construction, especially the continuous advancement of China's western development strategy, most of the construction of hydropower stations is located in deep mountains and valleys, and the geological conditions are getting worse. The more complex it is, the more difficult it is to develop. Due to the excellent mechanical properties of arch dams and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00E02D3/12
Inventor 陈旭东杨富平李正兵廖军任跃勤邹刚李红福焦瑞锋杨军
Owner 中国水利水电第七工程局成都水电建设工程有限公司
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