Several characteristics of self drilling anchor bolt

Several characteristics of self drilling anchor bolt

In general,anchor bolt and anchor cable is the most often used measures for protecting the stability of slope. But in the construction whatever use the large or small drilling machine, in order not to break the hole, you must use the casing ,this is virtually increase working hours. Especially drilling in the crushing zone or […]

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Application of self drilling anchor bolt in deep foundation pit

self drilling anchor

In recent years, a large number of deep foundation pit had been constructed in the city, poor urban drainage system caused the roads water- logging, if deep foundation pit position low-lying, weak blocking drainage measures may lead to adverse water flow backward, which bring about foundation pit soaked by water immersion, to the foundation pit […]

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Problems and improvement’s suggestions for self drilling anchor in mine

elf drilling anchor in mine

The supporting of self drilling anchor bar is an active form of support, which has the advantages such as good supporting effect,low cost,etc,which represents the development direction of the roadway bolting technology, greatly simplifies the coal working face end support and advanced support process, it ensure the safety of coal production. It has created favorable […]

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Hollow self drill anchor is used for pre-support in in weak ground conditions

Sinorock self drilling rock bolt

The advantages of hollow self drilling anchor – Hollow self drilling anchor combines functions of drilling, grouting and anchoring, is an advanced anchoring and support system, which can solve problem of hole collapse and ensure grouting effect under complex geological condition. At aspects of bending resistance, shearing strength and surface bonding, hollow drilling rock bolt […]

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