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Points of attention for applying percussive drilling pile driver

Source: Zhejiang burley Tools Co., Ltd.Publication time:2017-09-18

The impact of drilling pile driver impact drilling accident: stroke according to the meticulous soil environment, usually with the same depth in Gao Chongcheng agreed, agreed, lax, gravel soil, used in stroke, with a small stroke in easily collapse or the flow of sand area.

Through the boulder or rock, such as the bottom of the hole surface roughness, must first put small stones will then cross flat appearance, the shock cone held percussive drilling, garrison produce oblique hole, hole collapse block. When the stroke is too high, the disturbance at the bottom of the hole is large, which leads to the collapse of the hole, and the drilling speed is slower when the stroke is too small. In order to accurately select the stroke of the impact cone, a symbol must be held on the wire rope.

The impact of drilling pile driver shock cone lifting stability, inhibiting offend casing and hole wall, balance orifice, orifice near the forbidden station, police happen disorder butt. According to the drawings, often grasping slag samples, determination of geological environment and drawing control, well drilling footage and geological environment records, retained the impression material.

The impact of drilling pile driver impact drilling accident: stroke according to the meticulous soil environment, usually with the same depth in Gao Chongcheng agreed, agreed, lax, gravel soil, used in stroke, with a small stroke in easily collapse or the flow of sand area.

Through the boulder or rock, such as the bottom of the hole surface roughness, must first put small stones will then cross flat appearance, the shock cone held percussive drilling, garrison produce oblique hole, hole collapse block. When the stroke is too high, the disturbance at the bottom of the hole is large, which leads to the collapse of the hole, and the drilling speed is slower when the stroke is too small. In order to accurately select the stroke of the impact cone, a symbol must be held on the wire rope.

The impact of drilling pile driver shock cone lifting stability, inhibiting offend casing and hole wall, balance orifice, orifice near the forbidden station, police happen disorder butt. According to the drawings, often grasping slag samples, determination of geological environment and drawing control, well drilling footage and geological environment records, retained the impression material.

The percussive drill driver often checks the mud concentration and the slag discharge environment. The mud is too thick, will absorb a lot of impact can change, and block the shock cone, the impact of the footage declined significantly, or a plum blossom hole, hole deviation. To carefully proportioned relax the length of rope, rope, or too little, "air hammer", the drill, drill frame, wire rope has larger accident impact load, suffered damage. Loose rope too much, simple lead to cable, rubber, GE disorders. Often check the mud concentration and slag discharge environment. The mud is too thick, will absorb a lot of impact can change, and block the shock cone, the impact of the footage declined significantly, or a plum blossom hole, hole deviation. To carefully proportioned relax the length of rope, rope, or too little, "air hammer", the drill, drill frame, wire rope has larger accident impact load, suffered damage. Loose rope too much, simple lead to cable, rubber, GE disorders.

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