Measurement system for engineering geological drilling while drilling

A measurement-while-drilling and engineering geology technology, applied in the field of exploration and measurement, can solve the problems of twisting and inability to measure the torque of rotating parts, and achieve the effect of continuous data, conducive to real-time monitoring and easy realization

Active Publication Date: 2012-05-30
CHINA RAILWAY DESIGN GRP CO LTD
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AI Technical Summary

Problems solved by technology

Due to the existence of cables, it is prone to twisting problems, which makes it impossible to measure the torque of rotating parts

Method used

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  • Measurement system for engineering geological drilling while drilling
  • Measurement system for engineering geological drilling while drilling
  • Measurement system for engineering geological drilling while drilling

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Embodiment Construction

[0019] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0020] A measurement-while-drilling system for engineering geological drilling, which consists of a power machine 15, a transmission shaft 16, a reduction box 8, a chassis 12, a hydraulic control box 13, a hexagonal kelly 1, a machine head housing 9, a beam 4, a vertical shaft 6, Piston rod 7, hydraulic cylinder 10, torque measuring device 11, oil pressure measuring device 14, rotational speed measuring device 3, displacement measuring device 5 constitute. The power machine, reduction box and hydraulic control box are fixed on the chassis. The output horizontal shaft of the reduction box drives the vertical shaft to rotate through the bevel gear. The hydraulic control box controls the hydraulic cylinder and makes...

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Abstract

The invention relates to a measuring while drilling system used for engineering geological drilling, which comprises a power machine, a driving shaft, a reduction box, a chassis, a hydraulic control box, a six-square drill stem, a machine head shell, a cross beam, a vertical shaft, a piston rod and a hydraulic cylinder, wherein the lower part of the vertical shaft is coaxially provided with a torque measuring device; the cross beam is provided with a rotation speed measuring device and a displacement measuring device; the inside of the hydraulic control box is provided with an oil pressure measuring device; the torque measuring device, the oil pressure measuring device, the rotation speed measuring device and the displacement measuring device consist of corresponding sensors and circuit boards; and each circuit board is provided with a microprocessor (CPU) and a bluetooth module. Compared with the prior engineering geological driller, a driller of the measuring system can record the dynam information in the digital mode while drilling like adopting an original position testing measure, acquires continuous, precise and correct data, realizes digital and wireless control and wireless communication, further realizes teledata communication between sites and offices and changes the prior mechanical equipment into the information-based equipment.

Description

technical field [0001] The invention belongs to the field of surveying and surveying, in particular to a surveying-while-drilling system for engineering geological drilling. Background technique [0002] Ordinary engineering exploration drilling rigs have no other measuring devices except for an oil pressure gauge on the hydraulic feed drilling rig; moreover, most of them are core drilling rigs. The core samples are qualitatively described by geological technicians, and the coarse-grained soil and rock are judged accordingly. Characteristics; for cohesive soil, take the undisturbed soil sample in the hole, and then do the geotechnical test indoors; for the fine-grained soil, it can also do the in-situ test in the hole. Therefore, many geotechnical-related information during the drilling process can only be qualitatively described by the drilling recorder at best, or are lost and not recorded. [0003] There is a measurement-while-drilling system for large drilling rigs such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/12
Inventor 杨怀玉尹银轩别红霞
Owner CHINA RAILWAY DESIGN GRP CO LTD
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