CN2056696U - Multi-point displacement metre for drilling hole - Google Patents
Multi-point displacement metre for drilling hole Download PDFInfo
- Publication number
- CN2056696U CN2056696U CN 89207960 CN89207960U CN2056696U CN 2056696 U CN2056696 U CN 2056696U CN 89207960 CN89207960 CN 89207960 CN 89207960 U CN89207960 U CN 89207960U CN 2056696 U CN2056696 U CN 2056696U
- Authority
- CN
- China
- Prior art keywords
- measuring
- measuring point
- central tube
- point
- multiple position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000006073 displacement reaction Methods 0.000 title abstract description 15
- 238000005553 drilling Methods 0.000 title abstract description 6
- 239000011435 rock Substances 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a multi-point displacement meter for drilling hole for measuring the deformation value of the deep part of wall rocks in an underground engineering. The multi-point displacement meter for drilling hole is mainly characterized in that a probing measuring bar (7) with a magnetoelectric sensor follows a measuring point sheath (2) with a magnet pole measuring point; an electric meter (8) is used indicate the magnetic pole position of the measuring point; data is read from the fiducial line of an aperture central pipe (6) and the measuring bar (7). The utility model has the advantages of simple structure, convenient installation, low cost and capacity of multi-point measuring for a long time. The utility model is an ideal meter for measuring the displacement in the deep part of the wall rocks.
Description
The utility model relates to a kind of boring multiple position extensometer, and it is applicable to the surrouding rock deformation shift value that measures the different deeps in roadway, chamber or tunnel in the underground construction by boring.
Be used to measure the prior art of drilling displacement value at present, after most of employing connector extends to the aperture with measuring point with wire rope, steel pipe or steel ruler, go to measure the change in displacement between each connector.Their weak point is: in the position, aperture reliable measurement device and protective device must be set, make measuring system complicated for this reason, single hole measuring point number is restricted, and accuracy is low, cost is high.
The purpose of this utility model is the high boring multiple position extensometer of a kind of precision of design.
Task of the present utility model realizes by following scheme, uses a probe measuring staff that has magnetoelectric transducer, stretches in the boring, follows the tracks of the subsidiary magnetic pole measuring point that sets in advance in boring, accurately indicates the measuring point position of magnetic pole by ammeter again.This moment just can be on the measuring staff of position, aperture reading.When reading, probe does not contact all the time with measuring point, measures the resolving power of resolving power decision measuring staff and reference line, and it is 0.02 millimeter that the ammeter display sensitivity can make measurement resolution, after the sensitivity of raising ammeter, can also improve measurement resolution.
The utility model be a kind of simple in structure, easy for installation, antijamming capability is strong, the measuring point number is unrestricted, be fit to long-term observation, with low cost, the boring multiple position extensometer that is easy to promote.
Below in conjunction with the accompanying drawing of submitting to the embodiment that the utility model provides is explained in detail:
Description of drawings:
Fig. 1 is the structure chart of boring multiple position extensometer;
Fig. 2 is the scheme of installation of boring multiple position extensometer;
Fig. 3 is the A-A partial enlarged drawing of Fig. 2.
Boring multiple position extensometer structure as shown in Figure 1, it mainly by the probe (1), measuring point cover (2), magnet piece (3), Spring Card (4), rivet (5) is formed.Manufacturing of this displacement meter is very simple, at first with a non-magnetic tubing, (for reducing production costs, can adopt hard plastic tube to manufacture) cut into the measuring point cover (2) of every section about 3～5 centimeters length, and on its tube wall, punching, with cementing agent magnet piece (3) is fixed in the hole, use rivet (5) also to be fixed on Spring Card (4) on the tube wall simultaneously, like this, a displacement meter has just been made.
The installation of boring multiple position extensometer as shown in Figure 2, (6) be central tube, (7) be measuring staff, (8) are ammeter, be to hole (9).The installation of this displacement meter adopts following steps to carry out: the bottom, hole that at first a termination of central tube (6) is fixed on boring (9) with the anchoring agent, the material of central tube (6) is identical with measuring point cover (2), its function is measuring point cover (2) is play the guiding role, central tube to be confirmed (6) is after the anchoring well, be through central tube (6) with large diameter measuring point cover (2) and go up the point position that advances the different depth that designs this moment, and displacement meter has just installed like this.Owing to structurally adopted Spring Card (4), install very conveniently, and can fully guarantee fixing of measuring point cover (2) and boring.When country rock deformed displacement, measuring point cover (2) made the data of collection meet engineering reality more with the country rock synchronous shift.
When measuring, insert central tube (6) as long as will have the measuring staff (7) of probe (1), by ammeter indication measuring point position of magnetic pole to be sought, when finding the central point in magnetic field, promptly aim at the back reading with the aperture reference line at measuring staff (7).The aperture reference line is the aperture of central tube (6).Because an end of central tube (6) has been anchored at the bottom of the hole, institute's read data is actual to be as the deformation displacement value of benchmark at the bottom of measuring point and the hole.Drilling depth will meet outside the Influence of Displacement scope, thinks the reference point that is not subjected to displacement.The material of measuring staff (7) can be unrestricted, is shaped on dimension line and corresponding numerical value at its external surface, for easy to carry, can adopt light aluminum pipe to make.Probe (1) and ammeter (8) be connected wire arrangements in the caliber of measuring staff (7).The length of central tube (6) and measuring staff (7) can be adjusted arbitrarily.Probe (1) adopts with measuring staff (7) and is threaded.
Claims (4)
1, a kind of boring multiple position extensometer that is used to measure underground construction deep wall rock deformation values, mainly formed by measuring point cover (2), central tube (6) and measuring staff (7), an end anchorage that it is characterized in that central tube (6) is at foot of hole, and on its pipe, be inserted in several and certain intervals arranged apart from the measuring point cover of arranging (2), the Spring Card that is installed on magnet piece (3) on the tube wall of measuring point cover (2) and fixes with rivet (5); When measuring, the measuring staff (7) that is made of probe (1), ammeter (8) inserts the magnetic pole measuring point reading value that central tube (6) is followed the tracks of measuring point cover (2).
2, boring multiple position extensometer according to claim 1 is characterized in that the external surface of measuring staff (7) is shaped on dimension line and respective value.
3,, it is characterized in that central tube (6), measuring point cover (2) made by nonmagnetic tubing according to claim 1,2 described boring multiple position extensometers.
4,, it is characterized in that the length of central tube (6) and measuring staff (7) can be adjusted arbitrarily according to claim 1,2 described boring multiple position extensometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207960 CN2056696U (en) | 1989-06-02 | 1989-06-02 | Multi-point displacement metre for drilling hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207960 CN2056696U (en) | 1989-06-02 | 1989-06-02 | Multi-point displacement metre for drilling hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2056696U true CN2056696U (en) | 1990-05-02 |
Family
ID=4864724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89207960 Withdrawn CN2056696U (en) | 1989-06-02 | 1989-06-02 | Multi-point displacement metre for drilling hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2056696U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100535585C (en) * | 2006-11-29 | 2009-09-02 | 四川大学 | Sleeve bore multidot tensiometer |
| CN103900514A (en) * | 2014-04-24 | 2014-07-02 | 中国科学院武汉岩土力学研究所 | Multi-point displacement meter installation and automatic data collection method of steeply inclined seam roadway |
| CN108507708A (en) * | 2018-03-30 | 2018-09-07 | 西安科技大学 | A kind of drilling in coal and rock stress measurement device and its measurement method |
| CN110108242A (en) * | 2019-05-22 | 2019-08-09 | 中国科学院武汉岩土力学研究所 | To monitor the recyclable measuring device and its method of tunnel surrounding internal displacement |
| CN111458062A (en) * | 2020-04-10 | 2020-07-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Instrument for automatically measuring three-dimensional frost heaving force of channel and measuring and mounting method thereof |
-
1989
- 1989-06-02 CN CN 89207960 patent/CN2056696U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100535585C (en) * | 2006-11-29 | 2009-09-02 | 四川大学 | Sleeve bore multidot tensiometer |
| CN103900514A (en) * | 2014-04-24 | 2014-07-02 | 中国科学院武汉岩土力学研究所 | Multi-point displacement meter installation and automatic data collection method of steeply inclined seam roadway |
| CN108507708A (en) * | 2018-03-30 | 2018-09-07 | 西安科技大学 | A kind of drilling in coal and rock stress measurement device and its measurement method |
| CN108507708B (en) * | 2018-03-30 | 2020-10-23 | 西安科技大学 | Coal rock drilling stress measuring device and measuring method thereof |
| CN110108242A (en) * | 2019-05-22 | 2019-08-09 | 中国科学院武汉岩土力学研究所 | To monitor the recyclable measuring device and its method of tunnel surrounding internal displacement |
| CN111458062A (en) * | 2020-04-10 | 2020-07-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Instrument for automatically measuring three-dimensional frost heaving force of channel and measuring and mounting method thereof |
| CN111458062B (en) * | 2020-04-10 | 2022-03-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Instrument for automatically measuring three-dimensional frost heaving force of channel and measuring and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |