Environment-friendly core drilling rig for drilling complex sandy gravel stratum

Abstract

The invention discloses an environment-friendly core drilling rig for drilling complex sand and pebble formations, which comprises a chassis with a crawler-type walking mechanism, an operating platform, a mast frame, a flip-type mast, a mast lifting cylinder, a shackle chuck, and a drilling rig power head , drill pipe, casing, hoist, diesel engine and manually operated valves, an environmental recovery system used in conjunction with drill pipe and casing, a double-drive hydraulic motor set on the drilling rig power head, a double-drive hydraulic pump set, and a split drive box. The invention realizes the adjustment of the output speed of the drilling rig through the double-drive hydraulic motor group and the double-drive hydraulic pump group, and can combine four speed modes in pairs, and the speed adjustment range is wider, which not only meets the low-speed impact rotary drilling It can also meet the needs of high-speed diamond rotary drilling. It has higher efficiency and stronger application functions. Moreover, by setting up an environmental protection recovery system to recover and treat the sundries generated by drilling, it can avoid polluting the surrounding environment and affecting the health of operators.

Description

technical field [0001] The invention relates to the field of drilling rigs, in particular to an environment-friendly core drilling rig for drilling complex sand and pebble formations. Background technique [0002] Railway engineering survey occupies a very important position in railway construction and is the most basic work in the entire railway construction project. It not only directly affects the rationality of the entire design scheme, but also directly relates to the budget of the entire railway project. Therefore, it is particularly important to obtain complete, accurate and reliable core data from the borehole as much as possible. [0003] In the investigation of railway engineering, we often encounter accumulation strata formed by geological phenomena such as weathering and transportation, such as weathering, river bed, glacier ice water, landslide, engineering backfill and other accumulation strata. Accumulation of filling materials such as crushed stones and sand...

AI Technical Summary

Problems solved by technology

[0005] However, what kind of drilling rig to use can meet the technical requirements of percussion coring and tube drilling technology for core collection in complex sandy pebble formations has always been a key research issue for those skilled in the art. At the same time, a large number of broken particles and Dust, a large amount of water is ejected from the top of the casing in the formation rich in groundwater, which has adverse effects on the construction environment and the health of operators

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