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Hollow anchor: an overview of the effect of anchor rods in tunnel construction

Hollow anchor: an overview of the effect of anchor rods in tunnel construction

  • Categories:News
  • Author:欣本
  • Origin:www.lyxbjx.cn
  • Time of issue:2020-11-13 14:52
  • Views:

(Summary description)At present, the main products are: hollow anchor rods, water-expandable anchor rods, ordinary hollow grouting anchor rods, reverse circulation hollow grouting anchor rods

Hollow anchor: an overview of the effect of anchor rods in tunnel construction

(Summary description)At present, the main products are: hollow anchor rods, water-expandable anchor rods, ordinary hollow grouting anchor rods, reverse circulation hollow grouting anchor rods

  • Categories:News
  • Author:欣本
  • Origin:www.lyxbjx.cn
  • Time of issue:2020-11-13 14:52
  • Views:
Information

  Luoyang Xinben Machinery Equipment Co., Ltd. is located in the beautiful ancient capital of the Nine Dynasties-High-tech Zone, Luoyang City, Henan Province, with superior geographical location and convenient transportation. Founded in 2005, the company specializes in R&D, manufacturing and sales of supporting materials, mining materials and equipment. It has strong scientific research strength and production capacity, diverse sales channels and excellent after-sales service. The company has strong capital and strong production capacity, with 12 existing development personnel and 16 professional and technical personnel. At present, the main products are: hollow anchor rods, water-expandable anchor rods, ordinary hollow grouting anchor rods, reverse circulation hollow grouting anchor rods, prestressed anchor rods, self-advanced hollow grouting anchor rods, expanding shell hollow grouting anchor rods A series of products such as grout bolts, combined hollow grouting bolts, and pipes.

Hollow bolt

  Xinben recommends an overview of the effects of anchor rods in tunnel construction:

 

  1. Prepare in advance for the first basic construction: (1) Fengshui electrical equipment pipeline repair and trial operation to ensure that the pipeline is in a safe condition; (2) The hollow anchor rod on the spot meets the requirements. (3) Appropriate configuration of personal protective equipment for employees. Inspect the soft rock on the spot before construction to ensure the safety of the soft rock. Hollow bolt

Hollow grouting anchor

  2. Accurate measurement position: clarify the hole distance of the hollow anchor according to the design plan and make a mark, and the allowable hole distance error is ±100 mm. Hollow grouting anchor

Hollow bolt manufacturers

  3. Drilling equipment: (1) Check whether the drainage port of the hollow anchor bit is smooth, and if there is dirt, it should be removed immediately; (2) The hole distance of the hollow anchor positioning device is slowly drilled in until the design scheme is deep. (3) The exposed length of the anchor is maintained at 10-15 cm. Hollow bolt manufacturers

 

  4. Elimination of inspection: (1) After the hollow anchor rod is drilled into the deep layer of the design plan, tap water and high pressure air to clean and drill. (2) Check whether the interval, length, and viewing angle of the hollow anchor rods meet the requirements, and re-drill the waste rock that is found to be insufficient.

 

  5. Anchor grouting: (1) The actual operation staff should wear rubber gloves, protective glasses and rubber boots when configuring the grout . (2) The grouting is introduced from the middle hole of the rod body, and the upward and upward holes should be set with stop plugs and discharge holes as required, and the working pressure of grouting should be controlled in accordance with the safety regulations of the processing technology. (3) Cross-type grouting is selected, and the interval grouting is carried out. After the grouting is completed, the actual effect inspection will be carried out, but the grouting will be added immediately after the grouting. When grouting is carried out, the actual operation staff shall not stand around the grouting port.

 

  6. Acceptance status: The length of the hollow bolt entry hole is not less than 95% of the design value, and the total number of installations meets the requirements; when the compressive strength of the cement mortar body is 10.0MPa, the hollow bolt pad nut and spray paint can be mixed The soil surface is closely connected.

 

  The above is the content collected by Luoyang Xinben Machinery Equipment Co., Ltd., the editor for everyone, if you need to develop it, please contact us.

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