[Regulations] Article 244 provisions impact the roadway danger zone pressure must strengthen support, mining coal face advance support must increase the range and intensity of exports and up and down the roadway. Bottom drum measures must be taken to severely impact the dangerous area. [Execution Description] When the working face is close to large geological structures, goafs or other stress-concentrated areas, it is necessary to strengthen the roadway support strength. Bolts, anchor cables, U-shaped steel bracket cables, bolts, etc., which are severely impacted in the dangerous area, shall adopt anti-collapse measures to prevent collapse and injury during the impact. In order to reduce the floor-type impact ground pressure disaster occurred in the roadway in the dangerous area of ​​the severe impact ground pressure, it is necessary to carry out drilling and pressure relief, blasting pressure relief, excavation pressure relief tank and other anti-danger measures for the roadway floor in advance, and support the bottom plate if necessary to reduce Bottom plate impact hazard.
Deep Stamping Products, it can also be called Deep Metal Stamping Parts,Deep Processing Metal Stamping Parts,Deep Processing Stamping Parts.
The manufacturing process of stamping parts is stamping processing. Stamping processing is a kind of power by means of conventional or special stamping equipment, so that the sheet is directly subjected to deformation force and deformed in the mold, so as to obtain product parts of certain shape, size and performance. production technology. Sheet metal, mold and equipment are the three elements of stamping processing.
Deep Stamping Products,Deep Metal Stamping Parts,Deep Processing Metal Stamping Parts,Deep Processing Stamping Parts Anping County Dongjie Wiremesh Products Co., Ltd. , https://www.dongjiewiremesh.com
Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet metal stamping, or stamping for short. It is one of the main methods of metal plastic processing (or pressure processing), and it also belongs to material forming engineering technology.
Dongjie can produce stamping parts according to your drawings. Dongjie has more than 1500+ sets of molds, and has a professional technical and design team. We can meet your requirements as much as possible. You are welcome to come to consult with your drawings .
Strengthening support measures in dangerous areas of impact ground pressure