CN107576318A - A kind of super Deep vertical shaft measurement cultellation method - Google Patents
A kind of super Deep vertical shaft measurement cultellation method Download PDFInfo
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- CN107576318A CN107576318A CN201711046670.7A CN201711046670A CN107576318A CN 107576318 A CN107576318 A CN 107576318A CN 201711046670 A CN201711046670 A CN 201711046670A CN 107576318 A CN107576318 A CN 107576318A
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Abstract
The invention discloses a kind of super Deep vertical shaft measurement cultellation method, comprise the following steps：1）The selection of ground cabling hole cultellation position；2）Ground connection measurement；3）Cultellation；4）Lower steel wire；5）Substance swings cultellation.The actual conditions that the present invention combines pit shaft are analyzed and researched to cultellation method precision, cultellation swings the ruler method in cultellation using substance, steel wire selects diameter 2.0mm high-strength carbon spring steel wires during cultellation, plumb bob weight is increased to 240kg, and be put into plumb bob in the water-butt for adding water, sawdust is mixed in water to reduce the plumb bob amplitude of oscillation, plumb bob line is kept compared with stable state, cultellation precision is less than 20mm, fully meets《Mining survey code》Defined cultellation precision.
Description
Technical field
Present invention relates particularly to a kind of super Deep vertical shaft measurement cultellation method.
Background technology
Our department of Ping Meishenma groups major part mine comes into or will entered three horizon minings, original mine systems
The needs of three horizon minings can not have been met.Mining area sustainable development and enlarged reproduction are realized, it is horizontal must just to build three
It is independent or with one, two levels be used in conjunction with enter, return air well shaft and three entry systems, to meet the three horizontal need mined
Will.Therefore, the shaft of vertical well of each super km of ore deposit design and construction depth of Ping Meishen horses group company, super km is faced with measurement and is thrown
This new problem of point.Because well depth, water drenching be big etc., factor easily causes that cultellation precision is low, and so as to cause to penetrate by mistake, tunnel needs
Adjustment could be used, and delay is gone into operation the duration, causes economic loss.
Four ore deposit of flat coal god horse, three horizontal 1146.4 meters of the downcast well depth of here construction, water drenching are more than 34m3/ h, distinguished and admirable, leaching
Influence of the water to cultellation steel wire is very big, and cultellation is difficult, can be used for reference without super km pit shaft measurement cultellation experience both at home and abroad.
The content of the invention
It is an object of the invention to provide a kind of super Deep vertical shaft measurement cultellation method.
Based on above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of super Deep vertical shaft measurement cultellation method, comprises the following steps：
1) selection of ground cabling hole cultellation position
By the selection of cultellation position in major and minor cage east, west both sides, away from borehole wall 0.6m, away from major and minor cage mouth 0.8m；
2) ground connection measurement
Using 5, " level wire is connected on tie point；
3) cultellation
Diameter 2.0mm carbon spring steel wires is selected, using diameter 0.8m, deep 1.5m bucket, stabilizing solution water is injected, adds
Foam is sawed, and the steel wire stretch value Δ L after extension plumb bob under steel wire is calculated using following formula, it is ensured that once examination is hung successfully：
In formula (1)：When K is stress 9.81N/ ㎏, the stretch value of every meter of steel wire；L is wire hanger length；Q be plumb bob and
Chassis gross mass with hook；C1For plumb bob relative density；C2For stabilizing solution relative density；
4) steel wire under
By lower steel wire in cabling hole, when steel wire is reached away from shaft bottom 4-6m, plumb bob is hung up, takes cage afterwards, with 1~
1.5m/s speed, check steel wire free suspension situation twice from top to bottom, it is ensured that cultellation reliability；
5) substance swings cultellation
Cultellation is swung using ruler method substance：Total powerstation is disposed in downhole orientation point top position, observation swings plumb bob line and existed
Reading on scale, the reading of plumb bob line settling position on scale is then calculated, when connecting angle measurement in underground, that is, sight the reading
Number, without aiming at plumb bob line；Scale is disposed adjacent on plumb bob line and the ad hoc yoke substantially vertical with total powerstation sight, observation
During swing, artificially swing plumb bob line parallel staff, swing-scanning control is advisable within 100mm, then dynamic most by plumb bob string pendulum
Outer rim, the continuous odd number reading for reading more than 13 on scale, reading of the plumb bob line stabilization position on scale is calculated with following formula
Number N0：
Checking formulae is
In formula (2) and (3)：l1, l2..., lnIt is continuous to read n for left border rod reading of plumb bob string pendulum when dynamic；r1,
r2..., rmIt is continuous to read m for right border rod reading of plumb bob string pendulum when dynamic；lIt is flat, rIt is flatRespectively above-mentioned left and right edge reading is averaged
Value；N=m+1, n+m ＞ 13；Observe as stated above twice, its settling position reading mutual deviation must not exceed 1mm, take its average value
As end product.
In step 3), the nominal tensile strength of carbon spring steel wires is 723~728MPa, suspension plumb bob quality is 430~
440㎏。
In step 3), in formula (1)：When K is stress 9.81N/ ㎏, the stretch value of every meter of steel wire, 0.0016cm；L is steel wire
Hang length, 1146.4m；Q is plumb bob and the chassis gross mass with hook, 240 ㎏；C1For plumb bob relative density, 7.3；C2To be steady
The relative density for determining liquid water is 1.
In step 3), bung capping plate dash antihunting, stop blower fan operating during cultellation.
The actual conditions that the present invention combines pit shaft are analyzed and researched to cultellation method precision, and cultellation is swung using substance and thrown
Ruler method in point, steel wire selects diameter 2.0mm high-strength carbon spring steel wires during cultellation, increases plumb bob weight to 240kg, and
Plumb bob is put into the water-butt for adding water, sawdust is mixed in water to reduce the plumb bob amplitude of oscillation, plumb bob line is kept compared with stable state, cultellation
Precision is less than 20mm, fully meets《Mining survey code》Defined cultellation precision；
By the present invention cultellation method realize the horizontal rail of four ore deposit of Ping Meishen horses group company three go down the hill with belt
The accurate insertion of mountain safety, about 13000 meters of penetrated wire total length.And the cultellation method is applied to Ping Meishen horses group company ten
Three horizontal downcast of ore deposit (design 1100 meters) pit shaft, equally realize oneself the horizontal group track of ten ore deposit three and go down the hill penetrated wire total length
14500 meters of the accurate insertion of safety.Specifically, compared with prior art, the beneficial effects of the present invention are：
1) selection of cultellation position：, can be to steel wire at mancage 0.8m by the selection of cultellation steel wire away from borehole wall 0.6m
Directly checked, eliminate cultellation hidden danger, ensure that the correctness of cultellation；
2) four ore deposits, three horizontal air intake well depth is more than more than 1100 rice, and water drenching is more than 50m3/ h, pit shaft is deep, and cultellation difficulty is big, closes
Reason selection cultellation steel wire (diameter 2.0mm high intensity carbon spring steel wires) is using weight amount is increased, and using autocratic big metal bucket, (bucket is high
1.6m, diameter 0.8m) in plus water and saw foam, bung capping plate dash antihunting, the methods of stopping blower fan operating during cultellation, ensure
Setting point error is within 20mm.
Brief description of the drawings
Fig. 1 is underground connection instrumentation plan (one) top swing position；
Fig. 2 is underground connection instrumentation plan (two) rod reading；
Fig. 3 is the observation for moving pole side position L and R to plumb bob string pendulum using total powerstation；
Fig. 4 be plumb bob line grow nonparasitically upon another plant swing signal.
Embodiment
Example below is only to further illustrate the present invention, and the invention is not limited in any way.
Embodiment 1
A kind of super Deep vertical shaft measurement cultellation method, comprises the following steps：
1) selection of ground cabling hole cultellation position
Because well depth exceedes km, steel wire is contacted with facility in pit shaft during to avoid cultellation, and cultellation position is selected major and minor
Cage east, west both sides, away from borehole wall 0.6m, at major and minor cage mouth 0.8m；Major and minor cage can so be taken to cultellation steel wire
Checked, to ensure steel wire free suspension；
2) ground connection measurement
First ground point for shaft position achievement is checked, after confirmation is errorless, using 5, " level wire is connected to tie point (cultellation
Hole) on；
3) cultellation
Select suitable steel wire and weight it is suitable plumb bob it is extremely important.By repetition test, selection diameter 2.0mm carbon
Plain spring steel wire, its nominal tensile strength are 723~728MPa, and suspension plumb bob quality is 430~440 ㎏.Using diameter 0.8m,
Deep 1.5m bucket, injection water is as stabilizing solution, to reduce plumb bob swing.It is difficult to determine plumb bob away from bucket to prevent plumb bob from aggravating
The distance at bottom, the steel wire stretch value Δ L after extension plumb bob under steel wire is calculated using following formula, it is ensured that once examination is hung successfully：
In formula：When K is stress 9.81N/ ㎏, the stretch value of every meter of steel wire, 0.0016cm；L is wire hanger length,
1146.4m；Q is plumb bob and the chassis gross mass with hook, 240 ㎏；C1For plumb bob relative density, 7.3；C2It is relative for stabilizing solution
Density, water 1.
4) steel wire under
By lower steel wire in cabling hole, when steel wire is reached away from the 5m of shaft bottom, then plumb bob is hung up, then take cage, with 1~
1.5m/s speed, directly check steel wire free suspension situation twice from top to bottom, it is ensured that cultellation reliability；
5) substance swings cultellation
Substance, which swings cultellation, can be divided into ruler method, determine two kinds of mid-game method.In view of four ore deposits, three horizontal air intake vertical depth it is big,
Water drenching is big, and uses ruler method without fixed equipment, decision during shaft building.
As shown in figure 1, in downhole orientation point top2Position disposes total powerstation, and observation swings readings of the plumb bob line o on scale
Number, then calculate the reading of plumb bob line settling position on scale.When connecting angle measurement in underground, that is, the reading is sighted, without taking aim at
Quasi- plumb bob line；Scale is disposed adjacent on plumb bob line and the ad hoc yoke substantially vertical with total powerstation sight, when observation is swung, people
To swing plumb bob line parallel staff, swing-scanning control is advisable within 100mm, uneven with scale face to reduce plumb bob line plane of oscillation
The caused error of row, the outer most edge then moved by plumb bob string pendulum, on scale it is continuous read more than 13 odd number reading (see
Fig. 2), reading N of the plumb bob line stabilization position on scale is calculated with following formula0：
Checking formulae is
In formula：l1, l2..., lnIt is continuous to read n for left border rod reading of plumb bob string pendulum when dynamic；r1, r2..., rmIt is vertical
Right border rod reading when ball string pendulum is dynamic, it is continuous to read m；lIt is flat, rIt is flatThe average value of respectively above-mentioned left and right edge reading；N=m+1, n
+ m ＞ 13.Observe as stated above twice, its settling position reading mutual deviation must not exceed 1mm, take its average value as last knot
Fruit.Plumb bob line stabilization position readings record is shown in Table 1 with result of calculation.
The plumb bob line stabilization position readings of table 1 record and result of calculation
Setting point error source and evaluation method analysis
1st, effect of the air-flow to plumb bob line and plumb bob
(1) influence of the pit shaft interior air-flow to plumb bob line is sufficiently complex, and the plumb bob line deviant caused by air-flow is that cultellation misses
The main source of difference.
(2) effect of the air-flow to plumb bob line in pit shaft, is mainly shown as at ingate, and air-flow produces side pressure to plumb bob line
Power.Although adding windproof sleeve to plumb bob line, operation is relatively difficult, can greatly reduce distinguished and admirable influence., can if distinguished and admirable smaller
To be not added with windproof sleeve.
(3) mine shaft depth is different, and it is also different that setting point error calculates equation used.When mine shaft depth is 300~600m,
Setting point error λ can be calculated with following formula：
In formula：P is the lateral pressure suffered by steel wire unit length；H is ingate height；H is well depth；Q is plumb bob weight.
From above formula, plumb bob line is inversely proportional by deviant caused by airflow influence and plumb bob weight, directly proportional to well depth.
2nd, influence of the water drenching to plumb bob
Water burst, borehole wall water drenching and water pipe leak in pit shaft, by strike plumb bob line and disturb its uniform swing state.Therefore
When selecting plumb bob line hanging position, EXIT POINT should be avoided as far as possible；During cultellation, answer feed pipe under closed-in well or take dash
Measure, plumb bob is put into the drum for fill water stable.So, it can be influenceed to be reduced to minimum, can when calculating setting point error
Ignore.
3rd, plumb bob line plane of oscillation and scale face are not parallel
As shown in figure 3, in C points position, repeatedly seen when using swing pole side position L and R of the total powerstation to plumb bob line
Survey, and a series of reading l and r are read on scale MN, then take its average value, when trying to achieve the reading on scale, then plumb bob line
Swaying direction LR and scale face MN parallel and not parallel when caused gap aa0For
In formula (5)：ω2For plumb bob thread amplitude of oscillation, i.e. LR；Angles of the α between plumb bob line swaying direction and scale；S is whole station
Instrument to scale distance.
4th, the swing of growing nonparasitically upon another plant of plumb bob line
Under ideal conditions, in pit shaft plumb bob line swing, should have uniformly and the pendulum gradually decayed as pendulum
Width.But substantial amounts of actual observation data is shown, the median average position line of each adjacent amplitude of oscillation of plumb bob line, not as one
Straight line, but the curve offset to the left and right, as shown in Figure 4.This explanation has other a series of swings to be attached on main swing,
It has impact on the amplitude of oscillation mainly swung.After plumb bob line, which has, grows nonparasitically upon another plant swing, the mean place tried to achieve by rod reading is just
In its real settling position, thus generate setting point error.It has been investigated that the main reason for growing nonparasitically upon another plant swing is produced, when
The influence of pit shaft interior air-flow change, second, in pit shaft water drenching strike, third, rubbing action of the air-flow to steel wire, fourth, ground is hung down
The vibrations of ball line fixing point, fifth, steel wire is elastic.
After plumb bob is immersed in stabilizing solution, the swing of growing nonparasitically upon another plant of plumb bob line just significantly reduces, as shown in Fig. 4 (a).Now, it is attached
Raw swing influences can be neglected.
Reduce the measure of setting point error
Four ore deposits, the three horizontal super km of air intake vertical depth, the main factor for causing plumb bob line setting point error is at ingate
Air-flow makes plumb bob line produce deflection, deviant can be used as setting point error value λ lateral pressure caused by plumb bob line；Also following formula can be used
Setting point error value is calculated, i.e.,
In formula：C is aerodynamic coefficient；D is steel wire (plumb bob line) diameter；V is the distinguished and admirable speed with plumb bob line vertical direction
Degree；The same formula of h, H, Q meaning (4).
It is high with mine shaft depth, ingate from formula (6) as can be seen that plumb bob line is influenceed caused setting point error by distinguished and admirable
Degree, steel wire diameter and wind speed it is square directly proportional, be inversely proportional with plumb bob weight.Accordingly, take following measure and thrown to reduce
Point tolerance, it have received Expected Results：
(1) cultellation steel wire uses diameter 2.0mm high-strength carbon spring steel wires.
(2) with the increase of mine shaft depth, plumb bob weight is increased.Lower quality of hanging is hanging down for 240 ㎏ in 1146.4m well depths
Ball, plumb bob line is set to keep compared with stable state.
(3) plumb bob is put into the water-butt for adding water, and sawdust is mixed in water, reduces plumb bob thread amplitude of oscillation.
Claims (4)
- A kind of 1. super Deep vertical shaft measurement cultellation method, it is characterised in that comprise the following steps：1) selection of ground cabling hole cultellation positionBy the selection of cultellation position in major and minor cage east, west both sides, away from borehole wall 0.6m, away from major and minor cage mouth 0.8m；2) ground connection measurementUsing 5, " level wire is connected on tie point；3) cultellationDiameter 2.0mm carbon spring steel wires is selected, using diameter 0.8m, deep 1.5m bucket, stabilizing solution water is injected, adds saw Foam, and the steel wire stretch value Δ L after extension plumb bob under steel wire is calculated using following formula, it is ensured that once examination is hung successfully：<mrow> <mi>&Delta;</mi> <mi>L</mi> <mo>=</mo> <mi>K</mi> <mi>L</mi> <mfrac> <mrow> <mi>Q</mi> <mrow> <mo>(</mo> <msub> <mi>C</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>C</mi> <mn>2</mn> </msub> <mo>)</mo> </mrow> </mrow> <msub> <mi>C</mi> <mn>1</mn> </msub> </mfrac> <mo>&ap;</mo> <mn>379.914</mn> <mi>c</mi> <mi>m</mi> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>In formula：When K is stress 9.81N/ ㎏, the stretch value of every meter of steel wire；L is wire hanger length；Q is for plumb bob and with hook Chassis gross mass；C1For plumb bob relative density；C2For stabilizing solution relative density；4) steel wire underBy lower steel wire in cabling hole, when steel wire is reached away from shaft bottom 4-6m, plumb bob is hung up, takes cage afterwards, with 1~1.5m/s Speed, check steel wire free suspension situation twice from top to bottom, it is ensured that cultellation reliability；5) substance swings cultellationCultellation is swung using ruler method substance：Total powerstation is disposed in downhole orientation point top position, observation swings plumb bob line in scale On reading, then calculate the reading of plumb bob line settling position on scale, when connecting angle measurement in underground, that is, sight the reading, Without aiming at plumb bob line；Scale is disposed adjacent on plumb bob line and the ad hoc yoke substantially vertical with total powerstation sight, observation pendulum When dynamic, artificially swing plumb bob line parallel staff, swing-scanning control is advisable within 100mm, the outermost then moved by plumb bob string pendulum Edge, the continuous odd number reading for reading more than 13 on scale, reading of the plumb bob line stabilization position on scale is calculated with following formula N0：Checking formulae is<mrow> <msub> <mi>N</mi> <mn>0</mn> </msub> <mo>=</mo> <mfrac> <mrow> <mi>&Sigma;</mi> <mrow> <mo>(</mo> <mi>l</mi> <mo>+</mo> <mi>r</mi> <mo>)</mo> </mrow> </mrow> <mrow> <mn>2</mn> <mi>n</mi> </mrow> </mfrac> <mo>+</mo> <mfrac> <mrow> <mi>&Sigma;</mi> <mi>r</mi> </mrow> <mrow> <mn>2</mn> <mi>n</mi> <mi>m</mi> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>3</mn> <mo>)</mo> </mrow> </mrow>In formula：l1, l2..., lnIt is continuous to read n for left border rod reading of plumb bob string pendulum when dynamic；r1, r2..., rmFor plumb bob line Right border rod reading during swing, it is continuous to read m；lIt is flat, rIt is flatThe average value of respectively above-mentioned left and right edge reading；N=m+1, n+m ＞ 13；Observe as stated above twice, its settling position reading mutual deviation must not exceed 1mm, take its average value as end product.
- 2. super Deep vertical shaft measurement cultellation method as claimed in claim 1, it is characterised in that in step 3), carbon spring steel The nominal tensile strength of silk is 723~728MPa, and suspension plumb bob quality is 430~440 ㎏.
- 3. super Deep vertical shaft measurement cultellation method as claimed in claim 1, it is characterised in that in step 3), in formula (1)：K is During stress 9.81N/ ㎏, the stretch value of every meter of steel wire, 0.0016cm；L is wire hanger length, 1146.4m；Q is plumb bob and band The chassis gross mass of hook, 240 ㎏；C1For plumb bob relative density, 7.3；C2Relative density for stabilizing solution water is 1.
- 4. super Deep vertical shaft measurement cultellation method as claimed in claim 1, it is characterised in that in step 3), bung capping plate Dash antihunting, stop blower fan operating during cultellation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112483066A (en) * | 2019-09-12 | 2021-03-12 | 安徽恒源煤电股份有限公司钱营孜煤矿 | Method for measuring up-down connection of shaft for mine |
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| CN101706276A (en) * | 2009-11-18 | 2010-05-12 | 灵宝市金源矿业有限责任公司 | Longitudinal calibration method in mounting shaft device |
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| CN112483066A (en) * | 2019-09-12 | 2021-03-12 | 安徽恒源煤电股份有限公司钱营孜煤矿 | Method for measuring up-down connection of shaft for mine |
| CN112483066B (en) * | 2019-09-12 | 2023-09-15 | 安徽恒源煤电股份有限公司钱营孜煤矿 | Method for measuring up-down connection of shaft for mine |
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Application publication date: 20180112 |