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Pneumatic control rock cutting device for rock-embedded pile soft-hard interphase layer

A technology of uneven hardness and air pressure control, which is applied to the automatic control system of drilling, drilling with liquid/gas jet, drilling equipment, etc. And other issues

Active Publication Date: 2016-12-14
ZHEJIANG COMM CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent is mainly aimed at the soft and hard conditions of loose lunar soil and lunar rocks that frequently change during core drilling of lunar soil. It cannot be used for drilling with uneven distribution of soft rock and hard rock in the same layer, nor can it be used for embedded Rock pile drilling construction

Method used

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  • Pneumatic control rock cutting device for rock-embedded pile soft-hard interphase layer
  • Pneumatic control rock cutting device for rock-embedded pile soft-hard interphase layer
  • Pneumatic control rock cutting device for rock-embedded pile soft-hard interphase layer

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Embodiment Construction

[0057] Below in conjunction with accompanying drawing, the present invention will be further described:

[0058] Such as Figure 1~6 As shown, an air pressure control rock cutting device for rock-socketed piles with uneven hardness and softness includes a rock cutting casing 1, a conical cutting tool system 2, a toothed cutting tool system 3, a vibration sensing system 4, Air pressure sensor system 5, air pressure bag system 6, high pressure water pipe 7, multi-path connector 8, vibration isolation spring 9, drill pipe 10, air pressure controller 11, vibration controller 12, high pressure water pump 13, cable 14, strong Adhesive 15, soft and hard formation 16, air pressure flow controller 17, air pressure stabilization bolt 18, rubber shock absorber 19, vibration isolation fastening bolt 20, retaining pin 21, slag removal port 22;

[0059]Rock cutting casing 1 built-in conical cutting tool system 2, toothed cutting tool system 3, vibration sensing system 4, air pressure sensi...

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Abstract

A pneumatic control rock cutting device for a rock-embedded pile soft-hard interphase layer can meet the accurate drilling requirement of the soft-hard interphase layer in the rock-embedded pile construction process, and ensures drilling quality meeting design standards. The pneumatic control rock cutting device comprises a rock cutting retaining cylinder, a conical cutting tool system, a toothed cutting tool system, a vibration sensing system, a pneumatic sensing system, a pneumatic bag system, a high-pressure water pipe, a multi-path connector, an isolation spring, a drill rod, a pneumatic controller, a vibration controller, a high-pressure water pump, a cable, power adhesives, a pneumatic flow controller, a pneumatic stabilization bolt, a rubber shock pad, an isolation fastening bolt and retaining pins. The pneumatic control rock cutting device has the advantages that according to the stress condition of soft-hard rock cutting, constant pressure of a drilled soft rock is kept, pneumatic pressure is applied to incompletely cut hard rocks, and the device solves the common problems that a rock-embedded pile easily deviates in construction in the soft-hard interphase layer and a reinforcement cage cannot descend for installation by the aid of the criterion of 'constant pressure-pressurization'.

Description

technical field [0001] The invention relates to a rock-cutting device for a rock-socketed pile, in particular to an air pressure-controlled rock-cutting device for rock-socketed piles with uneven hardness and softness, and belongs to the technical field of rock-socketed pile construction. Background technique [0002] Rock-socketed piles are a pile foundation mode widely used in bridge engineering, port engineering, and construction engineering, and have good bearing capacity. However, during the construction of rock-socketed piles, due to the unevenness of the bedrock, the thickness of the soil and rock layers, and the uneven distribution of hardness and softness, the engineering geological conditions cannot reach the ideal uniform formation, and it is very easy to cause the drill bit to pass through the hard formation. Deviating to the side of the soft ground, the drilling is deflected, the verticality of the hole cannot be guaranteed, the subsequent reinforcement cage can...

Claims

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Application Information

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IPC IPC(8): E21B7/10E21B7/18E21B10/43E21B44/00
CPCE21B7/10E21B7/18E21B10/43E21B44/00
Inventor 潘晓林大干李曦宇方兆寅王国锋
Owner ZHEJIANG COMM CONSTR GRP CO LTD
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