Grouting anchor rod device with underground water drainage function and using method thereof

A technology for grouting bolts and groundwater, which is applied in the direction of safety devices, bolt installation, and drainage. It can solve problems such as high construction safety risks and groundwater splashing, and achieve improved grouting effect, reduced construction difficulty, and grouting effect. Good results

Pending Publication Date: 2021-02-26
THE THIRD ENG CO LTD OF CHINA RAILWAY SEVENTH GRP
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  • Abstract
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Problems solved by technology

[0003] Aiming at the technical problems existing in the prior art, the present invention provides a grouting anchor device with groundwater drainage function and its use method, in order to solv

Method used

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  • Grouting anchor rod device with underground water drainage function and using method thereof
  • Grouting anchor rod device with underground water drainage function and using method thereof
  • Grouting anchor rod device with underground water drainage function and using method thereof

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following specific embodiments will further describe the present invention in detail. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0035] as attached Figure 1-4 As shown, the present invention provides a grouting bolt device with groundwater drainage function, comprising a hollow grouting bolt 1, a groundwater drainage structure 2 and a grouting valve 3; the hollow grouting bolt 1 is axially provided with Grouting channel, the rod body of the grouting bolt 1 is radially provided with grouting holes, and the grouting holes are connected with the grouting channel; the groundwater drainage structure 2 is sleeved on the hollow grouting bolt 1, and the grouting valve 3 is arranged in the hollow Grouting the end of the anchor rod 1. ...

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Abstract

The invention provides a grouting anchor rod device with an underground water drainage function and a using method of the grouting anchor rod device. The grouting anchor rod device comprises a hollowgrouting anchor rod, an underground water drainage structure is arranged on the hollow grouting anchor rod in a sleeving mode, and a grout stop valve is arranged at the tail end of the hollow groutinganchor rod. The underground water drainage structure comprises an underground water collecting cover, and an anchor rod through hole is formed in the rear end of the underground water collecting cover. The hollow grouting anchor rod is movably inserted into the anchor rod through hole in a penetrating mode, and the hollow grouting anchor rod is connected with the anchor rod through hole in a sealed mode. A drainage hole is formed in one side of the anchor rod through hole, one end of the drainage hole communicates with an inner cavity of the underground water collecting cover, and the other end communicates with the outside. The underground water collecting cover is arranged on the hollow grouting anchor rod in a sleeving mode, a water storage space is formed between the underground watercollecting cover and a rock surface to be constructed, collection and temporary storage of stratum seepage water flow flowing out along an anchor rod drill hole are achieved, and the stratum seepagewater flow is drained to a designated position through the drainage hole. The underground water splashing phenomenon in the drilling process is avoided, and the construction safety risk is reduced.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a grouting bolt device with groundwater drainage function and a method for using the same. Background technique [0002] With the continuous expansion of infrastructure construction speed and construction scale, it is inevitable to carry out engineering construction under unfavorable geological conditions; in order to reduce the impact on surrounding structures during the construction process, grouting on the stratum is a commonly used stratum reinforcement method in engineering construction. , especially bolt grouting as an effective tunnel reinforcement method has been widely used in recent years; however, during the construction of grouting bolts, due to the excessively large formation permeability coefficient, groundwater often flows out along the bolts, especially in high permeability The groundwater splashing phenomenon may even occur when drilling holes in...

Claims

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Application Information

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IPC IPC(8): E21D20/02E21D21/00E21F16/02
CPCE21D20/02E21D21/0026E21D21/0093E21F16/02
Inventor 彭康潘兴良章舒展姜旭徐永晖刘小超苏亚秦绍坤焦武阳岳正中王隆冯子义张佃飞孙师贇周东波
Owner THE THIRD ENG CO LTD OF CHINA RAILWAY SEVENTH GRP
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