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Expansion anchor cable drilled hole measuring system on basis of inertia sensor

An inertial sensor and measurement system technology, which is applied in the directions of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems that the accelerometer is easily affected by mechanical vibration, sensor installation positioning error, inertial sensor accuracy error, etc., to achieve Low cost, small measurement error and excellent continuous measurement ability

Active Publication Date: 2014-10-22
SOUTHWEST BRANCH OF NORTHWEST RES INST CO LTD OF C R E C
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The above two technologies have their own conditions of use, and there are still technical deficiencies in their application in the measurement of long anchor cable tunnels

Method used

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  • Expansion anchor cable drilled hole measuring system on basis of inertia sensor
  • Expansion anchor cable drilled hole measuring system on basis of inertia sensor
  • Expansion anchor cable drilled hole measuring system on basis of inertia sensor

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the drawings.

[0032] A measuring system for anchor cable drilling holes includes a hardware system and a software system. The specific structural framework of the entire system such as figure 1 . The hardware system is composed of equipment dedicated rod 3, data acquisition system 2, propulsion bit 1, fixed rod 4, rechargeable power source 10, handheld terminal 5, and portable workstation 6. Such as Figure 2~6 .

[0033] The special rod 3 for the equipment is a long round tube-shaped aluminum pipe fitting, with a raised bayonet in the middle of the tube, which is convenient for inserting the data acquisition system 2 at both ends. The two ends of the special rod 3 for the equipment are made of turnbuckles 7 with rubber rings. Connect the propelling bit 1 and the fixed rod 4 in a way.

[0034] The advancing drill bit 1 serves the purpose of sealing, protecting the data acquisition sys...

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Abstract

The invention relates to an expansion anchor cable drilled hole measuring system on the basis of an inertia sensor. The expansion anchor cable drilled hole measuring system comprises a data acquiring system, a special device rod, a fixing rod, a portable workstation and a handheld terminal, wherein the special device rod and the fixing rod are used for fixing a data acquiring system, an MEMS (micro-electromechanical system) motion tracking module, a nine-axis sensor module, a data storage module and a Bluetooth transmission module are integrated on the side A of a central chip of the data acquiring system, and a main controller unit is arranged on the side B of the central chip. The data acquiring system is mainly used for acquiring data and transmitting data to the handheld terminal or the portable workstation. The expansion anchor cable drilled hole measuring system has the advantages of high inference resistance for special drilling environment of drill holes of anchor cables, and a high-precision three-dimensional hole map is obtained after data are optimized and processed.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering anchorage for landslides and high and large slopes, in particular to an inertial sensor-based long anchor cable drilling channel measurement system. Background technique [0002] As an effective measure, anchoring technology has been successfully applied in landslide control and high slope reinforcement projects. However, due to the influence of geological conditions and construction technology factors, in the drilling construction of anchor cable engineering, anchor cable drilling tunnels often occur. Deviation from the design direction (the so-called "cable bore bending"). Especially in the construction of long anchor cable engineering, the deviation of this kind of drilling channel is more serious, which will lead to many technical problems such as hole collapse, difficulty in anchoring, intersection of two holes, scrapped drilling, and decrease in effective anchoring force. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/022
Inventor 于贵朱宝龙李貌罗杰覃木庆张宽于兴国
Owner SOUTHWEST BRANCH OF NORTHWEST RES INST CO LTD OF C R E C