CN2709927Y - Multi-point displacement measuring indicating instrument for rock separation layer - Google Patents
Multi-point displacement measuring indicating instrument for rock separation layer Download PDFInfo
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- CN2709927Y CN2709927Y CN 200420042253 CN200420042253U CN2709927Y CN 2709927 Y CN2709927 Y CN 2709927Y CN 200420042253 CN200420042253 CN 200420042253 CN 200420042253 U CN200420042253 U CN 200420042253U CN 2709927 Y CN2709927 Y CN 2709927Y
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Abstract
The utility model relates to a multi-point displacement measuring indicating instrument for rock separation layer. The utility model is characterized in that anchor heads are fixed in the drill hole of rock; the lower end of the anchor heads is connected with steel cables and a hollow measuring tube; the inner cavity of the hollow measuring tube is provided with a fixed rod; one end of the fixed rod is connected with the last anchor head, and the other end of the fixed rod passing through the outer diameter of the hollow measuring tube is fixed by nuts; a movable tension spring is installed in the inner cavity of the hollow measuring tube; the other end of the steel cables is connected with one end of the tension spring through the small hole of a tail cover; the other end of the tension spring is connected with a measuring ring; the hollow measuring tube is also connected with a scale and a back cover; the measuring ring is connected with a pull ring. The utility model is used for measuring a tunnel engineering, the separation layer quantity of roof rocks for a mine roadway and a heading face and surface subsidence quantity. The multi-point displacement measuring indicating instrument for rock separation layer also measures and forecasts the displacement of a slope rock to ensure timely control of changes in the rock stratum and safe construction, and is suitable for single-point or multi-point scale monitoring. The multi-point displacement measuring indicating instrument for rock separation layer has the advantages of simple structure, low cost and convenient use. The hollow measuring tube can be used repeatedly, and long distance precise measurement can be realized.
Description
Technical field
The utility model relates to a kind of displacement measuring instrument, is specially adapted to rock absciss layer multi-point displacement and measures indicator.
Background technology
In constructing tunnel and coal mine excavation operation, because the excavation tunnel, the digging ore forms part rock or the unsettled unstability of ore bed; Under the influence of concussion of blasting, the suffered pressure of rock that these are unsettled or ore bed can change, may cause them and host rock or ore bed parting plane to produce displacement, moving in early days so with the naked eye is being difficult to discover in the bad working environment relatively, but if can not in time find, will form great potential safety hazard, construction operation is caused tremendous influence.KYL-1 type rock absciss layer indicator structure is a kind of early stage product, mainly there is maximum problem in it is that the measuring mechanism distance of 4 points too closely is easy to influence each other, it is not too reasonable to be installed in addition on the external structure of hole, will influence measuring mechanism and normally move if wall caving takes place outside the hole.
Summary of the invention
It is a kind of simple in structure that goal of the invention of the present utility model is to provide, and the cost cost is low, and is easy to use, and the rock absciss layer multi-point displacement that hollow measuring tube can reuse is measured indicator.
The technical scheme that realizes the present utility model purpose is to solve like this: comprise being fixedly connected with anchor head in the rock-boring, be connected with wire rope and hollow measuring tube in the bottom of anchor head, hollow measuring tube inner chamber is provided with fixed bar, one end of fixed bar is connected with last anchor head, it is fixedly connected with nut that the other end passes hollow measuring tube external diameter, above-mentioned said hollow measuring tube inner chamber is equipped with mobilizable extension spring, the other end of wire rope is connected with an end of extension spring by the tail-hood aperture, the other end of extension spring is connected with the survey ring, also be connected with scale and bonnet in the hollow measuring tube, survey ring and be connected with draw ring.
The utility model compared with prior art is mainly used in the measurement Tunnel Engineering, mine laneway and driving face balkstone absciss layer amount, the surface subsidence amount, the measurement forecast of side slope rock displacement so that in time grasp the formation variations situation, is guaranteed construction operation safety.Be applicable to single-point monitoring or the monitoring of multiple spot scale.Have simple in structurely, the cost cost is low, and is easy to use, and the characteristics that hollow measuring tube can reuse if the user needs precision measurement can install the precise electronic measurement device additional on measuring tube, realize remote precision measurement.Good social and economic benefit are arranged.
Important technological parameters is as follows:
Metering system: the precise electronic measurement device is directly read or installed additional to measurement ring at the measuring tube scale.
Measure dot number 1---4 (different depth)
Maximum is a range: 180mm/ is each
Use range 150mm/ each
The value of reading precision: 1mm
Bore diameter:＞27mm is installed
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a grapnel-type anchor header structure synoptic diagram.
Embodiment
Accompanying drawing is embodiment of the present utility model
Below in conjunction with accompanying drawing summary of the invention of the present utility model is done the detail explanation
With reference to shown in Figure 1, comprise and be fixedly connected with anchor head 1 in the rock-boring, be connected with wire rope 10 and hollow measuring tube 2 in the bottom of anchor head 1, the vertical tube inner chamber of hollow measuring tube 2 is provided with fixed bar 14, one end of fixed bar 14 is connected with last anchor head 1, it is fixedly connected with nut that the other end passes hollow measuring tube 2 horizontal tube external diameters, the horizontal tube inner chamber of above-mentioned said hollow measuring tube 2 is equipped with mobilizable extension spring 5, the other end of wire rope 10 is connected with an end of extension spring 5 by tail-hood 4 apertures, the other end of extension spring 5 is connected with survey ring 7, also be connected with scale 6 and bonnet 8 in the horizontal tube of hollow measuring tube 2, survey ring 7 and be connected with draw ring 9.Hollow measuring tube is made up of two horizontal tubes of the vertical connection of a vertical tube at least.Anchor head is multijaw anchor head or expansion shell type anchor head.If be embedded with four anchor heads 1 in the boring, hollow measuring tube 2 connects four horizontal tubes by a vertical tube.The wire rope 10 that connects on the anchor head 1 by hollow measuring tube 2 vertical tube and the aperture on the tail-hood 4 of four horizontal tubes be connected in the extension spring 5.
Shown in Figure 2, the multijaw anchor head comprises a pipe core 11, is hingedly connected with elastic force claw 13 on the pipe core 11, and pipe core 11 middle and upper parts also are fixedly connected with positioning pipe 12, and the bottom of pipe core 11 is connected with an end of wire rope 10.
Rock absciss layer multi-point displacement is measured the indicator installation steps:
At first, upwards directly play a boring, directly get to stable rock stratum at the back at the design fixed point place that may produce top board rock ore deposit absciss layer scale monitoring.
Second, there is the anchor head 1 of wire rope to send into foot of hole with auxiliary mounting rod with being, and be fixed in the boring as basic point, tighten up the back and take out mounting rod, load onto wire clips after the measurement ring on the hollow measuring tube 2 of steel wire penetrating, hollow measuring tube 2 is inserted in the boring, make the tight hollow measuring tube 2 of anchor head anchor of hollow measuring tube 2 front ends, do not allow aperture environmental impact on every side survey moving of ring 7.
The 3rd, adjust the wire clips position on the wire rope 10, tense wire rope 10, mobile wire clips suitably compresses the extension spring 5 of surveying on the ring 7 by surveying ring 7 reference positions, guarantees that wire rope 10 is subjected to stablizing tension force, guarantees to measure accurately.The initial reading of ring 7 surveyed in record.
So far, all installations when absciss layer appears in the rock stratum between anchor head 1 and the hollow measuring tube 2, produce relative displacement between hollow measuring tube 2 and the survey ring 7, and its amount of movement is directly read by scale 6.
Rate of travel=final value (amount of movement)-initial value
Because it is far away apart from the top board surface to be fixed on the basic point of stablizing the rock stratum, for the particular location of detail knowledge rock absciss layer, can arrange the measurement point of 1-3 different depth again in same boring.Installation method is identical, but before sending into and hole, the wire rope 10 of last time sending into boring must be passed the measuring point anchor head 1 that requires the back dress center pit of this anchor head 1, and indicate that each anchor head 1 position of each lining rope correspondence, attention can not allow wire rope 10 mutually around together.Hollow measuring tube 2 is installed afterwards again, and is adjusted the wire clips of respectively measuring rod end, write down initial value respectively.
When each measuring point relative displacement occurs because of the rock absciss layer, can determine the relative position of rock absciss layer according to each sounding rod length variations of aperture apart from the aperture.
For example, be fixed on the basic point IV that stablizes in the rock stratum apart from aperture 4m, measuring point III is apart from aperture 3m, and measuring point II is apart from aperture 2m, and measuring point I is apart from aperture 1m..
When the measuring staff amount of movement of basic point IV is 80mm, observe the rate of travel of measuring point III, II, I again, if measuring point III, II, I no change, then the rock absciss layer appears between basic point IV and the measuring point III; If measuring point III displacement 20mm, measuring point II, I no change are judged rock absciss layer amount 20mm between measuring point II and the measuring point III, rock absciss layer amount 60mm between measuring point III and basic point IV.By that analogy, can judge the relative distance of lithosphere more accurately, also can measure when a plurality of rock absciss layer occurring apart from the aperture.
In actual use, measuring boring can be any direction, to adapt to the rock absciss layer measurement amount of diverse location.When measuring the surface subsidence amount, should note the selected of sounding rod initial position.After measurement was finished, hollow measuring tube 2 can be pulled down repeated use, and anchor head 1 and wire rope are disposable use.
The diameter of wire rope is the multi-strand wire rope less than 1mm, wire clips adopt standard component or self-control all can, also can be directly load solid screw in the end sides of hollow sounding rod 4.
In use, if the rock stratum between basic point anchor head 1 and the hollow measuring tube 2 produces the absciss layer phenomenon, hollow measuring tube 2 will be with rock movement, basic point anchor head 1 in the fixing-stable rock stratum is surveyed ring 7 relative scales 6 by the wire rope pulling and is produced displacement, at this moment can directly from the hollow measuring tube 2 of level, read amount of movement with survey ring 7, (promptly the absciss layer of measuring in the boring can being converted into the hollow measuring tube of level and surveying ring 7 amount of movements of reading), if the user needs precision measurement to install the precise electronic measurement device additional on hollow measuring tube, realize remote precision measurement.
Claims (4)
1, a kind of rock absciss layer multi-point displacement is measured indicator, be included in and be fixedly connected with anchor head (1) in the rock-boring, it is characterized in that being connected with wire rope (10) and hollow measuring tube (2) in the bottom of anchor head (1), hollow measuring tube (2) inner chamber is provided with fixed bar (3), one end of fixed bar (3) is connected with last anchor head (1), it is fixedly connected with nut that the other end passes hollow measuring tube (2) external diameter, above-mentioned said hollow measuring tube (2) inner chamber is equipped with mobilizable extension spring (5), the other end of wire rope (10) is connected with an end of extension spring (5) by tail-hood (4) aperture, the other end of extension spring (5) is connected with survey ring (7), hollow measuring tube (2) outside surface also is connected with scale (6) and bonnet (8), surveys ring (7) and is connected with draw ring (9).
2, rock absciss layer multi-point displacement according to claim 1 is measured indicator, it is characterized in that said anchor head is multijaw anchor head or expansion shell type anchor head.
3, rock absciss layer multi-point displacement according to claim 2 is measured indicator, it is characterized in that said multijaw anchor head comprises a pipe core (11), be hingedly connected with elastic force claw (13) on the pipe core (11), pipe core (11) middle and upper part also is fixedly connected with positioning pipe (12), and the bottom of pipe core (11) is connected with an end of wire rope (10).
4, rock absciss layer multi-point displacement according to claim 1 is measured indicator, it is characterized in that said hollow measuring tube vertically connects at least two horizontal tubes by a vertical tube and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042253 CN2709927Y (en) | 2004-07-27 | 2004-07-27 | Multi-point displacement measuring indicating instrument for rock separation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042253 CN2709927Y (en) | 2004-07-27 | 2004-07-27 | Multi-point displacement measuring indicating instrument for rock separation layer |
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| Publication Number | Publication Date |
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| CN2709927Y true CN2709927Y (en) | 2005-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420042253 Expired - Fee Related CN2709927Y (en) | 2004-07-27 | 2004-07-27 | Multi-point displacement measuring indicating instrument for rock separation layer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342205C (en) * | 2005-12-22 | 2007-10-10 | 中国科学院力学研究所 | Method for measuring sliding surface position and slippage of landslip and its device |
| CN100535584C (en) * | 2006-11-29 | 2009-09-02 | 成都理工大学 | Sleeved multi-point drilling extender |
| CN100535585C (en) * | 2006-11-29 | 2009-09-02 | 四川大学 | Sleeve bore multidot tensiometer |
| CN101832745A (en) * | 2010-03-26 | 2010-09-15 | 山东科技大学 | Multi-position base plate delaminating monitor and using method thereof |
| CN101532810B (en) * | 2009-04-02 | 2010-11-10 | 中国矿业大学 | Rock stratum deep hole displacement monitor and quick mounting method |
| CN102914250A (en) * | 2012-11-22 | 2013-02-06 | 长沙理工大学 | Peripheral displacement monitoring and measuring system during tunnel construction |
| CN103278065A (en) * | 2013-05-17 | 2013-09-04 | 广东宏大爆破股份有限公司 | Rock stratum bidirectional displacement monitoring device and monitoring method |
| CN105180865A (en) * | 2015-10-13 | 2015-12-23 | 中国矿业大学 | Unidirectionally excavated slender inner space multi-point displacement measurement method |
| CN105781523A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for measuring swelling capacity of coal seam through ground drilling |
| CN109798818A (en) * | 2019-03-22 | 2019-05-24 | 中国矿业大学 | A kind of mechanical roadway surrounding rock displacement measuring device and its working method |
| CN116182668A (en) * | 2023-04-25 | 2023-05-30 | 山东中兴科技开发有限公司 | Measuring device for monitoring coal mine tunnel roof deflection |
-
2004
- 2004-07-27 CN CN 200420042253 patent/CN2709927Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342205C (en) * | 2005-12-22 | 2007-10-10 | 中国科学院力学研究所 | Method for measuring sliding surface position and slippage of landslip and its device |
| CN100535584C (en) * | 2006-11-29 | 2009-09-02 | 成都理工大学 | Sleeved multi-point drilling extender |
| CN100535585C (en) * | 2006-11-29 | 2009-09-02 | 四川大学 | Sleeve bore multidot tensiometer |
| CN101532810B (en) * | 2009-04-02 | 2010-11-10 | 中国矿业大学 | Rock stratum deep hole displacement monitor and quick mounting method |
| CN101832745A (en) * | 2010-03-26 | 2010-09-15 | 山东科技大学 | Multi-position base plate delaminating monitor and using method thereof |
| CN102914250B (en) * | 2012-11-22 | 2014-12-31 | 长沙理工大学 | Peripheral displacement monitoring and measuring system during tunnel construction |
| CN102914250A (en) * | 2012-11-22 | 2013-02-06 | 长沙理工大学 | Peripheral displacement monitoring and measuring system during tunnel construction |
| CN103278065A (en) * | 2013-05-17 | 2013-09-04 | 广东宏大爆破股份有限公司 | Rock stratum bidirectional displacement monitoring device and monitoring method |
| CN103278065B (en) * | 2013-05-17 | 2016-01-20 | 广东宏大爆破股份有限公司 | Rock stratum bidirectional displacement monitoring device and monitoring method |
| CN105180865A (en) * | 2015-10-13 | 2015-12-23 | 中国矿业大学 | Unidirectionally excavated slender inner space multi-point displacement measurement method |
| CN105781523A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for measuring swelling capacity of coal seam through ground drilling |
| CN109798818A (en) * | 2019-03-22 | 2019-05-24 | 中国矿业大学 | A kind of mechanical roadway surrounding rock displacement measuring device and its working method |
| CN116182668A (en) * | 2023-04-25 | 2023-05-30 | 山东中兴科技开发有限公司 | Measuring device for monitoring coal mine tunnel roof deflection |
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| 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 |