Construction method of spiral impact drilling device suitable for rock and soil

A construction method and drilling device technology, which are applied in the construction field of helical impact drilling devices, can solve the problems of increasing construction period, drilling inclination, and increasing engineering costs, so as to avoid deviation of drilling inclination, stable rotation frequency and transmission. System stabilization effect
CN112502610AActive Publication Date: 2021-03-16DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2021-03-16

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Abstract

The invention discloses a construction method of a spiral impact drilling device suitable for rock and soil. The drilling device comprises a drilling machine system and a drilling machine support, wherein the drilling machine support comprises a walking chassis mechanism, a rotating mechanism is arranged on the chassis mechanism, a working platform is arranged on the rotating mechanism, a drivingand operating room is arranged on the working platform, a movable arm is arranged at the front end of the working platform, and the front end of the movable arm is connected with the drilling system;and the drilling system comprises a power distribution system, an air compression system, a rock drilling component, a soil drilling component, a gear, a drill rod and a drill bit. The construction method comprises the steps of enabling the drilling machine support to travel to a designated position; installing a drilling system; adjusting the initial height and the drilling angle of the drill bit; and starting drilling. According to the construction method, the problem that drilling equipment cannot be suitable for different soil layers can be solved, and the method can adapt to different stratum conditions since the drilling angle can be accurately controlled and high maneuverability is achieved; moreover, the method is environmentally-friendly and can save energy and reduce noise; and in addition, the drill bit is firm and reliable, and therefore the method is suitable for slope and foundation pit supporting engineering.
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Description

technical field

[0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a construction method of a spiral percussion drilling device suitable for rock and soil. Background technique

[0002] Bolt support is a common form of support in the field of geotechnical engineering. Usually, the soil layer is drilled with an auger drill, and the rock layer is drilled with percussion down-the-hole drilling. In actual engineering, complex formations with both soil and rock formations are often encountered. The conventional solution to such problems is to replace drilling equipment. However, there are following problems in this type of solution: (1) the replacement, transportation, assembly, and check of machine tool equipment take a lot of time and increase the construction period. (2) Replacement of different drilling equipment according to different formation conditions will increase the engineering cost virtually. (3) The replac...

Claims

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