Large-diameter vertical well exploring machine

Abstract

The invention relates to the technical field of civil engineering, in particular to a large-diameter vertical well exploring machine. One end of an exploratory well machine body is fixedly connected with auxiliary falling devices, a bottom end of the well exploring machine body is provided with soil cutting parts, bottom ends of the soil cutting parts are fixedly connected with connecting devices, and bottom ends of the connecting devices are fixedly connected with cutters. Fixing cylinders, first electric telescopic rods, limiting plates, limiting shafts, limiting frames, connecting plates, first springs, connecting shafts and knocking blocks are arranged, when the large-diameter vertical well exploring machine completes drilling, soil on an inner side of the large-diameter vertical exploratory well machine needs to be taken out, the large-diameter vertical exploratory well machine can be vibrated under reciprocating knocking of the knocking blocks on the large-diameter vertical well exploring machine, falling of soil on the inner side of the large-diameter vertical well exploring machine is accelerated, meanwhile, the soil attached to an interior of the large-diameter vertical well exploring machine can fall off, and the soil falling effect and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a large-caliber vertical drilling machine. Background technique [0002] In the existing foundation pit support and pile foundation engineering, when the slope protection pile or cast-in-situ pile is constructed in a site with a deep underground water table, a large-diameter vertical well drilling machine is often required to form a hole. [0003] Since the large-diameter vertical drilling rig has high requirements on the soil quality, we found in the geotechnical engineering survey project of the Yanchang Petroleum Research Center that this area is a common loess area, and the loess is relatively loose, and the soil part was cut when forming the hole. When falling, due to the gravity of the large-diameter vertical drilling rig itself and the flatness of the surface, the verticality of the hole is often deviated, resulting in the inclination of the hole. [0004] In ad...

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Problems solved by technology

[0003] Since the large-diameter vertical drilling rig has high requirements on the soil quality, we found in the geotechnical engineering survey project of the Yanchang Petroleum Research Center that this area is a common loess area, and the loess is relatively loose, and the soil part was cut when forming the hole. When falling, due to the gravity of the large-diameter vertical drilling rig itself and the flatness of the surface, the verticality of the hole is often deviated, resulting in the inclination of the hole

[0004] In addition, the large-diameter vertical drilling rigs used in the market need to pour out the inner soil after the drilling is completed. Generally, the soil falls from the inner side of the large-diameter vertical drilling rig by its own weight. The work efficiency is low, and when the soil is attached to the The inner wall of the large-diameter vertical drilling machine will cause the soil to not fall, which will affect the next use, and the soil cutting part at the bottom of the general large-caliber vertical drilling machine is integrated. If the cutting part encounters hard substances and causes local damage, It is necessary to remove and replace all the soil-cutting parts of the large-caliber vertical drilling machine, resulting in increased costs and waste of resources. At the same time, it is not convenient to disassemble and replace the soil-cutting parts, which increases the working time. Well exploration rig

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