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缝管锚杆又叫“岩石摩擦稳定器”,七十年初由美国斯科特教授研制成功,由英格索兰公司作为专利产品,供给矿山支护使用。八十年代初,北京建井研究所在实验室进行了缝管锚杆探索实验取得了良好效果。后在煤炭系统逐渐推广应用。缝管锚杆是专用性很强的支护用品,是井下涵洞顶板及其它工程支护使用的先进材料,具有制造工艺简单,使用方便,在井下锚喷支护中具有锚固力强、抗拉力大,有很强的膨胀力,使整个顶板成为一体。
缝管锚杆产品型号含义及规格尺寸:缝管锚杆产品型号用MF外径(mm)长度(mm)表示,其中M表示“锚杆”。F表示“缝管式”。如MF43、1600表示缝管锚杆,其外径为43mm,长度为1600mm.缝管锚杆产品规格尺寸见下表:
Seam pipe bolt known as the "rock friction stabilizer," the early seventies by the United States, Professor Scott, the successful development of a patented product from Ingersoll-Rand Company, supply supporting the use of mines. The early eighties, the Beijing Research Institute to build wells conducted in the laboratory experiments to explore seam pipe bolt achieved good results. After the coal industry gradually expand the applications. Seam pipe bolt is a highly specialized branch of nursing supplies, is the underground culvert roof and other projects supporting the use of advanced materials and manufacturing processes with a simple, easy to use, in the underground bolting and shotcrete lining has a strong anchor, anti-pull large, there is a strong expansion of power, so that the whole roof into one. Model the meaning of seam tube bolt and specifications Size: seam pipes with MF OD Bolt Model (mm) Length (mm), said, in which M said "bolt." F means "slit tube." , Such as MF43, 1600, said seam tube bolt, its outside diameter 43mm, length 1600mm. Seam tube bolt Product Size in the table below:
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项目Item |
MF33 |
MF43 |
|
|
标准值Standard Value |
公差Tolerance |
标准值Standard Value |
公差Tolerance |
杆
体 |
外径OD |
33 |
±0.5 |
43 |
±0.5 |
长度Length |
1400、1600、1800、2000 |
缝宽Aperture |
10 |
±1.0 |
14 |
±1.5 |
壁厚Thickness |
2.5-3.0(Q235A级冷轧钢) |
头梢长度Length of the first tip |
40-50 |
头端直径Head-end diameter |
27 |
±0.5 |
37 |
±0.5 |
托
盘 |
长×宽Length × width |
120×120 |
±2.0 |
150×150 |
±2.0 |
高度Height |
15-25 |
±1.0 |
15-25 |
±1.0 |
厚度Thickness |
4-6 |
孔径Aperture |
35 |
±0.5 |
45 |
±0.5 |
推荐钻空直径Recommended Drill diameter |
31 |
41 |
挡环距尾端距离The distance from the end of the retaining ring |
4-6 | |
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