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Anchor-spraying concrete for treating water and support

An anchor-spraying support and anchor-spraying technology, which is applied in protection devices, earthwork drilling, water conservancy projects, etc., can solve the problems of construction builders being at a loss, and achieve the effect of maintaining the stability and durability of the sprayed layer

Inactive Publication Date: 2003-07-23
王衡
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Problems solved by technology

[0002] It is known that the prevention and control technology of water damage in underground engineering is an important link to ensure construction safety and efficiency. Many methods have been selected or are being explored, and they play their respective roles in corresponding occasions; but when the seepage water is serious (1m 3 / hm 2 ), it often makes the construction builders helpless

Method used

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  • Anchor-spraying concrete for treating water and support
  • Anchor-spraying concrete for treating water and support

Examples

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Embodiment Construction

[0069] The present invention will be further described below in conjunction with drawings and embodiments.

[0070] The meanings represented by the numbers drawn in the attached drawings: 1 Anchor rod 2 Drain pipe 3 Primary spray layer 4 Lead wire mesh 5 Respray layer 6 Base body 7 Material package

[0071] The first example occurred in the coal mine-374m main roadway, which belongs to limestone geology, and the roof is sprayed with water for 1m 3 / hm 2 the scene. See Figure 1.

[0072] Construction procedure: Drill 50mm deep 60cm holes at intervals of 2m at the place where the water is concentrated on the top plate, and install 50mm steel pipes densely to drain water. Then the initial spraying, the thickness of the spraying layer is 5cm, after 2 hours, drill 50mm holes on the spraying layer, the depth is 1.6m, the interval is 2.5m, install the anchor rod, hang the net, and then spray on the anchor, the total thickness of the two layers is 15cm. After curing for 72 hour...

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Abstract

An anchoring-sprayed prop for controlling water in constructing underground engineering features direct use of anchorage and spraying concrete. Its construction technology includes such steps as drilling weep holes, setting up weep pipes, primary spraying, drilling anchor holes, installing anchor rods, hanging net, spraying again, blocking drainage pipes, and curing. If the bed rock encounters fault, it is necessary to spray concrete for the third time.

Description

Field of the invention [0001] The invention relates to the technology for controlling water disasters in underground engineering, and mainly relates to the anchor spraying water control support under various geological seepage water conditions. Background technique [0002] It is known that the prevention and control technology of water damage in underground engineering is an important link to ensure construction safety and efficiency. Many methods have been selected or are being explored, and they play their respective roles in corresponding occasions; but when the seepage water is serious (1m 3 / hm 2 ), often make the construction builders helpless. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for water control and support by anchor spraying. [0004] Anchor-spraying water control support method of the present invention comprises the following steps: [0005] Drill drain holes, that is, drill hol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/18E02D29/045E02D31/02E21D11/38
Inventor 王衡贺高崎王国锋王国荣
Owner 王衡
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