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On December 9, 2010, sponsored by China Coal Machinery Industry Association and China coal mine city development working committee, Shenyang North transportation Heavy Industry Group Co., Ltd. organiz
Do you know the structure of the anchor drill?Now let's tell you the mechanical action principle of the anchor rod in the drilling rig, which can be summarized as follows:Anchor suspension functio
The drilling of hydraulic anchor drilling machine adopts rotary drilling machine pressure water drilling method. Before drilling, the design, supervision, geology and construction units shall lay out
The following points should be paid attention to when applying the anchor cable and cast-in-place pile technology of soil anchor drilling rig1) Prestressed coating anchor cable has high requirements f
After 7-8 days of grouting and curing of anchor cable in soil layer, when the strength of anchor solid is greater than 15MPa and not less than 75% of the design strength, the surrounding purlin is ins
In recent years, the anchor drilling machine has been rapidly promoted in China's coal industry, and has become an important means of coal mine roadway support. Quanzhou Qianshan Machinery Co., Lt
Roofbolter is used in foundation engineering, which can complete anchor construction, dry powder, mortar construction, various engineering survey holes, micro pile hole drilling, and can realize screw
So far, the anchor hole drilling equipment has been greatly improved. With the continuous development of technology and the difference of engineering requirements, the improvement should be continued
1. The anchoring engineering of hydropower, mine, dam body and road subgrade is mainly skid mounted light hydraulic anchor and drilling rig. The anchoring engineering of mine is mainly rock anchor, wh
Abstract: the supporting technology of deep foundation pit engineering is often encountered in the construction process of special soil road. Although it has obtained a lot of successful experience in