The standard for the use of pressure opening refers to a set of specifications and standards for the use of pressure opening technology for soil layer strengthening or foundation strengthening in geotechnical engineering. These standards are described in detail below.

1. Technical requirements: - Opening process: the opening should be drilled, drilled and exploded or combined to ensure the accuracy and quality of the opening. The diameter and spacing of the opening holes should meet the design requirements.

- Hole wall quality: After opening the hole, the hole wall must be cleaned, free of residue and debris. The wall of the hole should be flat and vertical, and there should be no obvious inclination or protrusion.

- Hole bottom quality: Hole bottom should be clean, no debris and residue. The bottom of the hole should be flat and vertical, and there should be no uneven situation.

- Orifice treatment: After opening the orifice, treat the orifice to prevent the soil layer from collapsing or loosening. Common treatment methods include shotcrete, grouting, casing and so on.

2. Equipment requirements:

- Drilling rig: Drilling rig suitable for engineering requirements should be selected for drilling. The rig should have sufficient power and stability to meet the requirements of drilling.

- Drilling tools: The selection of drilling tools is carried out according to different and aperture requirements. The drilling tool should have sufficient strength and rigidity to withstand the pressure and impact force when opening the hole.

- Monitoring equipment: Suitable monitoring equipment should be equipped to monitor the stability of the hole wall and the deformation of the soil layer during the opening process.

3. Construction requirements:

- Pretreatment: Before opening the hole, necessary pretreatment should be carried out on the construction area, including removing debris, leveling the site, fixing the surrounding structure, etc.

- Hole protection: During the opening process, appropriate hole protection measures should be taken according to the stability of the hole wall to prevent hole wall collapse or soil layer loosening.

- Construction sequence: The sequence and spacing of opening holes should be strictly controlled in accordance with the design requirements and construction scheme to ensure the quality and progress of the project.

- Construction records: Detailed records should be made of the opening conditions, including the aperture, spacing, hole wall quality, etc., for subsequent project acceptance and quality control.

4. Stability requirements:

- Construction personnel: Construction personnel shall have relevant technical knowledge and experience, be familiar with the opening process and construction specifications, and strictly abide by the stable operation procedures.

- Stability facilities: The construction site shall set up the necessary stability facilities, including protection nets, warning signs, stability warning lines, etc., to ensure the stability of personnel and equipment emergency plan: the corresponding emergency plan shall be formulated to deal with possible accidents during the construction process to ensure the stability of construction personnel.

In SUMMARY:

The use standard of pressure opening is a set of specifications involving technology, equipment and application. Compliance with these standards can ensure the quality of the opening project and improve the efficiency of the project. In the actual construction process, these standards should be flexibly applied according to the specific geological conditions and design requirements to achieve better engineering results.

Get more knowledge about What to Look for When Choosing an hot tapping machine Manufacturer please refer to aoguang sandwich valve：https://www.pipelinehottapping.com