CN103967507A - Curtain grouting process suitable for water-rich mine underground mining water plugging - Google Patents
Curtain grouting process suitable for water-rich mine underground mining water plugging Download PDFInfo
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- 238000010276 construction Methods 0.000 claims abstract description 9
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- 238000007569 slipcasting Methods 0.000 claims description 57
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Abstract
The invention discloses a curtain grouting process suitable for water-rich mine underground mining water plugging. According to the arrangement method of grouting holes, six grouting holes facing upwards by 5 degrees, six grouting holes facing upwards by 15 degrees and six grouting holes facing upwards by 25 degrees are formed in each chamber, the grouting holes facing upwards by 5 degrees, the six grouting holes facing upwards by 15 degrees and the six grouting holes facing upwards by 25 degrees are evenly distributed in the plane in a 60-degree staggered mode, and grouting holes facing downwards by -5 degrees, grouting holes facing downward by -30 degrees and grouting holes facing downwards by -60 degrees are formed outward in the chambers at the ends. According to the grouting process, bagged cement in a ground warehouse is transported to underground positions where grouting and leveling are needed, grouting is conducted through a working face temporary stirring station, a two-level pulp storage pond, a grouting pump, a grouting pipe and a hole opening high pressure device, grouting is completed after the designed final grouting pressure is reached, and the whole curtain grouting work is completed after further maintenance and hole cleaning. A grouting curtain with a high water plugging rate is set up underground for roof karst cracks, the water isolation function and the reinforcing function can be achieved, an ore body is safely and efficiently freed under protection of the grouting curtain, technical guarantees are provided for safe and efficient mining of the mine, project input is small, and the construction period is short.
Description
Technical field
The present invention relates to a kind of underground mine water blockoff engineering, especially relate to that a kind of ore body roof Karst Fissures is grown and strong rich water condition under underground mine exploitation water blockoff engineering, be specially adapted to that aquifer Karst Fissures, solution cavity are grown, apply in the water blockoff engineering of the moisture abundant and underground mine exploitation that ore body is concentrated relatively.
Background technology
To the mine of rich groundwater, produce for ensureing downhole safety, often to carry out draining drainage, mine pump drainage underground water will inevitably produce large-area precipitation funnel, easily cause surface collapse, and cause groundwater table to decline, cause stop flow of spring water, well to dry up, as Shuikoushan Lead-zinc Mine, all Kou Kuang, nasal mucus push up plumbous franklinite etc., have a strong impact on local people life and industrial and agricultural production.The cost that mine drainage costs a lot of money, meanwhile, periphery hydrogeological environment is subject to grievous injury.For this reason, China's mine water management worker uses for reference Hydropower Dam grouting experience and develops mining area curtain-grouting water-plugging technique.Through within nearly 40 years, putting into practice, develop, China's mining area curtain-grouting water-plugging technique steps into the practical stage, reaches its maturity.China attracts great attention to Mine Geological Disasters at present, can say, curtain-grouting water-plugging technique certainly will become one of major technique of flood mine water management.
External mining area curtain-grouting mostly is shallow section of curtain in Quaternary system topsoil, and major part is to dig the underground impervious wall of method construction with boring milling or shovel, and the dark large curtain comparison with China, cannot be mentioned in the same breath.Can say, from range of application, the curtain scale of mining area curtain, and the aspect such as economic benefit, social benefit obtaining weighs, and the mining area curtain-grouting water-plugging technique of China's original creation is all in world lead level.
At present both at home and abroad at existing nearly 20 case histories of ground, mining area curtain-grouting, rare report of down-hole country rock curtain-grouting, both are aspect water plugging rate and safety, all there is obvious difference, the former has certain distance apart from exploiting field, is not subject to the impact of mining engineering, requires to have certain water plugging rate, and have perfect drainage system in curtain, there is not the threat of water inrush and inundate mine; And the latter is close to ore body, easily destroyed by mining activity (explosion, sedimentation etc.), guarantee not occur water inrush and inundate mine accident simultaneously, therefore its technical difficulty is well imagined.
" application of curtain-grouting in harnessing the river in mine " literary composition that " western mineral exploration engineering " the 3rd phase in 2008 delivers is pointed out: " curtain grouting is exactly in the peripheral certain distance of main mine body; the method for utilizing curtain grouting, by ore body location and extraneous hydraulic connection partition, reduces pit inflow of water to greatest extent ".In " application of curtain-grouting in all mouthful of regional mine water blockoff " literary composition of delivering " engineering construction " in February, 2009, the construction method of carrying out curtain-grouting under strong moving water condition is introduced, its resolution and principle are: by the boring that runs through underground water mobile layer, permeable stratum (being mainly kettle sky group's dolomitic limestone and Datang rank argillaceous limestone) is carried out to slip casting, blocking underground water active tunnel, changes stratum local property and forms relatively waterproof cylindrical region.The approach in pit is crossed main underflow and enters in line, on line, carry out Equidistant Nodes formula boring slip casting, make the relatively waterproof region of column be joined together to form relatively fluid-tight curtain together, curtain connects relative water resisting layer emperor ridge group graniphyric limestone, the path of coming blocking groundwater inflow pit with this, reaches the object that stops pit water burst.But this curtain-grouting water-plugging technique, is difficult to adapt to that ore body roof Karst Fissures is grown and the curtain-grouting water blockoff in strong Fu Shui mineral deposit.
Summary of the invention
Object of the present invention is exactly for the above-mentioned defect existing in prior art, and a kind of curtain-grouting technique that rich water mine down-hole exploitation water blockoff is used that is suitable for is provided, and not only can strengthen steady of roof, play impermeable role, and water plugging rate is high, safe and reliable simultaneously.
For realizing above-mentioned purpose of the present invention, the present invention is a kind of is suitable for the following technical scheme of curtain-grouting process using that rich water mine down-hole exploitation water blockoff is used:
1) first should analyze the hydrological engineering geologic information of exploratory bore-hole and tunnel, exploratory bore-hole in early stage situation about disclosing in early stage, find out mine Karst Fissures developmental state and mine water inrush situation;
2) choose suitable curtain anti-seepage standard, require its water plugging rate to reach 80～95%;
3) utilize underworkings and chamber to carry out the construction of slip casting tunnel and detecting water by pilot hole injected hole, and the supporting of shotcrete with steel bar nets method is taked in the unsteady tunnel of lithology;
4) infiltration that the maximal head can bear according to curtain and injecting paste material can allow is than falling the curtain thickness of determining curtain-grouting: T=H
s/ J
0, m,
In formula: H
sthe maximal head that-curtain can bear, m,
J
0the infiltration ratio that-injecting paste material can allow falls;
5) face upward 5 °, 15 ° and 25 ° at each chamber arrangement upper to injected hole each 6, grouting borehole design is taking chamber center as basic point, each degree injected hole mutually staggers in the plane 60 ° and is evenly arranged, hole depth 45～60m, mutually staggers in the plane 20 ° and is evenly arranged between 5 °, 15 ° and 25 ° of injected holes.In implementation process, mustn't adjust according to the hydrology slip casting situation disclosing and the requirement of adopting accurate engineering at the scene.
The described upper boring control net degree forming to injected hole is controlled at 8m × 8m taking interior as good.
At end chamber arrangement to outside lower to-5 ° ,-30 ° and-60 ° of injected holes, hole depth 45～60m, to hold chamber center as basic point, each be arranged symmetrically with in the plane to injected hole down, angle is 10 ° mutually; In implementation process, must adjust according to the hydrology slip casting situation disclosing and the requirement of adopting accurate engineering at the scene.
6) adopt underground drill rig and the hidden hole drilling injected hole of each degree of constructing in down-hole, and aperture safety device is set, aperture safety device is made up of orifice tube, aperture water dam;
7) grout spreading range that diffuse to form of slurries in crack must meet simultaneously:
1. design formulas: R=
In formula: R-is grout spreading range, m,
K-is rock stratum transmission coefficient,
T-slip casting perdurabgility, h,
R-feed pipe for mortar radius, mm,
μ
1the coefficient of viscosity of-water,
μ
2the coefficient of viscosity of-slurries,
H grouting pressure, MPa,
The porosity of n-rock stratum;
2. according to " slurry injection technique code " regulation, in marble fissured waterbearing stratum, slurries effectively spread radius gets 6～15m;
8) in whole slip casting process, grouting pressure along with injected hole around the situation such as diffusion, precipitating, filling pressure break of slurries variation and change at any time, according to initial pressure, pressure process and final value pressure three phases, design respectively the force value of this three phases respectively;
Generally, the initial pressure of design is hydrostatic pressure 1.0 times, pressure process is controlled between 1.5～2 times of hydrostatic pressure values, the final value pressure of design is 2.0～3.0 times of hydrostatic pressures.
9) in order to reach best slip casting effect, must inject enough slurries amounts, to ensure that slurries have certain range of scatter, form enough slip casting thickness.Analyze relatively according to the slip casting of similar mine, the slurry consumption amount of injected hole is 0.3～0.8t/m,
10) other parameter: injecting paste material, concentration of slurry, slip casting ending standard meet designing requirement; In the time that injected hole adopts single fluid grouting, under final value pressure, slip casting section midge amount is less than 20～35L/min, continues, after 30min, can finish slip casting.
Choose slurry viscosity low, the property noted is good, and grout spreading range is suitable, and slurries calculus rate is high, impervious good, good stability, and calculus is soaked the material that state change does not occur for a long time as injecting paste material, as neat slurry and clay cement grout in water; For the crack of different in width, take the slurries of several variable concentrations, first rare rear dense.
The technical characteristics that the present invention is a kind of is suitable for the curtain-grouting technique that rich water mine down-hole exploitation water blockoff uses has: in underground construction boring, with strong points, invalid creep into few; For top board Karst Fissures, play the double action of water proof and reinforcing; Less engineering investment, the duration is short, and has following effect:
(1) visit after the mortar depositing construction of water hole by level, can substantially find out occurrence and the scale in ore body permeable structure crack, the features such as groundwater regularities of distribution, the quiet moving reserves of qualitative analysis underground water.
(2) implementing down-hole curtain encrypts after Grouting engineering, the hydrogeological characteristics of nearly ore body country rock is investigated thoroughly substantially, the water guide crack of the overwhelming majority and leak " skylight " are by shutoff, pit inflow of water obviously reduces, estimation can reduce pit inflow of water 70%～80% left and right, analysis of possibility of water inrush reduces greatly, for ore body safety and high efficiency provides strong technique guarantee;
(3) by the enforcement to down-hole, mineral deposit Grouting Curtain Engineering, possessing under certain technical safety measures condition, can substantially ensure the safe working of the following ore deposit of grouting curtain amount;
(4) ore body forms after overall underground grouting curtain, can save a large amount of effluent costs, and economic interests are remarkable;
(5) after Grouting Curtain Engineering is implemented, can substantially ensure that groundwater in mining area does not decline, subsiding does not appear in ground substantially;
(6) reduced the exploitation risk in Karst Fissures growth and strong Fu Shui mine, and can in various conditions of similarities mine, apply.
Brief description of the drawings
To be that the present invention is a kind of be suitable for the figure of curtain-grouting technique longitudinal projection that rich water mine down-hole exploitation water blockoff is used to Fig. 1.
To be that the present invention is a kind of be suitable for curtain-grouting technological level that rich water mine down-hole exploitation water blockoff uses to perspective view to Fig. 2.
Fig. 3 be the present invention a kind of be suitable for curtain-grouting technique that rich water mine down-hole exploitation water blockoff uses grouting process flow chart.
Reference numeral is: 1-chamber; 2-tunnel; Visit water injected hole for 3-5 °; Visit water injected hole for 4-15 °; Visit water injected hole for 5-25 °; 6-waterline.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details.
The present invention is as shown in Figure 1 a kind of to be suitable for the figure of curtain-grouting technique longitudinal projection that rich water mine down-hole exploitation water blockoff uses and to find out in conjunction with Fig. 2, and tunnel 2 is positioned under waterline 6, and each chamber 1 is along tunnel 2 lateral arrangement.
1) upper to visiting water injected hole layout: arrange that at each chamber 1 facing upward 5 °, 15 ° and 25 ° visits each 6 of water injected hole, forming boring control net degree is in 8m × 8m.Visit note drilling design taking chamber center as basic point, visit 4,6 25 ° spy water injected holes 5 of 3,6 15 ° spy water injected holes of water injected hole for 65 ° and mutually stagger in the plane 60 ° and be evenly arranged, hole depth 50m separately.Visit between water injected hole for 5 °, 15 ° and 25 ° and mutually stagger 20 ° and be evenly arranged.In implementation process, mustn't adjust according to the hydrology slip casting situation disclosing and the requirement of adopting accurate engineering at the scene.
2) under, arrange to visiting water injected hole: deposit to-5 ° ,-30 ° and-60 ° and visit water injected hole, hole depth 50m at the outside cloth of end chamber.Taking end chamber center as basic point, each be arranged symmetrically with in the plane to visiting water injected hole down, angle is 10 ° mutually.In implementation process, must adjust according to the hydrology slip casting situation disclosing and the requirement of adopting accurate engineering at the scene.
3) according to adopting the requirement of accurate engineering, hole, slip casting, form grouting curtain, design parameter is:
(1) curtain thickness is: T=H
s/ J
0, m,
In formula: H
sthe maximal head that-curtain can bear, m,
J
0the infiltration ratio that-injecting paste material can allow falls;
(2) grout spreading range that diffuse to form of slurries in crack must meet simultaneously:
1. design formulas: R=
In formula: R-is grout spreading range, m,
K-is rock stratum transmission coefficient,
T-slip casting perdurabgility, h,
R-feed pipe for mortar radius, mm,
μ
1the coefficient of viscosity of-water,
μ
2the coefficient of viscosity of-slurries,
H grouting pressure, MPa,
The porosity of n-rock stratum;
2. according to " slurry injection technique code " regulation, in marble fissured waterbearing stratum, slurries effectively spread radius gets 6～15m;
(3) other parameter: injecting paste material, grouting pressure, concentration of slurry, slip casting ending standard meet designing requirement.
1. grouting pressure
Grouting pressure is the power that slurries overcome flow resistance and carry out diffusion, is the principal element that determines slip casting effect.In whole slip casting process, grouting pressure along with injected hole around the situation such as diffusion, precipitating, filling pressure break of slurries variation and change at any time, be generally divided into initial pressure, pressure process and final value pressure three phases.
Initial pressure: now because slip casting just starts, should adopt thin pulp low-pressure grouting, make slurries excessively loose, filling slowly, general initial pressure is hydrostatic pressure 1.0 times.
Pressure process: appear at the mid-term of slip casting process, now slurries diffuses flow, precipitating, filling in crack, large crack dwindles gradually, rimala starts into slurry filling.Pressure process is controlled between 1.5～2 times of hydrostatic pressure values.
Final value pressure: appear at slip casting latter stage, the pressure of slip casting while finishing, now occur that grouting amount is with the pressure phenomenon reducing that raises, still need to keep grouting pressure and stablize a period of time, its objective is and make the under high pressure further compacting of the full space of filling, the duration in this stage is shorter, because pressure curve obviously rises, mark slip casting has closed on end, should finish slip casting work by slip casting ending standard, and design final grouting pressure is 2.0～3.0 times of hydrostatic pressures.In actual slip casting work, should consider, apply in a flexible way, in the time having more charges in rock fracture agensis or Karst Fissures, especially the broken contact zones of ore body upper lower burrs, should adopt high-pressure slip-casting to its carry out that densification is compacted, filling slight crack or consolidation process; If Karst Fissures is grown, should adopt low pressure, underflow, quantitative grouting method intermittently, in order to avoid that slurries spread was far away, cause waste.
2. concentration of slurry
The concentration of the slurries of injected hole directly affects the property noted and the set strength of slurries, due to the crack of containing different in width in slip casting section, the slurries that therefore all should adopt several concentration in each slip casting, principle is first rare rear dense, deacclimatizes respectively the crack of various different in width with the slurries of variable concentrations.The initial concentration of single liquid cement paste is determined by the rock stratum water absorption rate of each boring slip casting section.Single liquid cement paste initial concentration carries out proportioning by four ranks such as water/binder ratio 2:1,1.5:1,1:1 and 0.8:1, during for slip casting, selects; Cement, the general volume of cement paste and the volume proportion of water glass that adopts 1:1 of water glass biliquid slurry, volume ratio is 1:1 and bis-ranks of 1:0.8.
3. slurries injection rate
In order to reach best slip casting effect, must inject enough slurries amounts, to ensure that slurries have certain range of scatter, form enough slip casting thickness.Slurries injection rate is relevant with slip casting section thickness, rock fracture rate, rate of karstification, slurries gel time etc., but because the crack rate of rock is difficult to accurately provide, the therefore slurries injection rate calculated value in every hole, reference can only supply to prepare material time.Analyze relatively according to the slip casting of similar mine, the slurry consumption amount of every meter of injected hole is 0.3～0.8t/m.
4. slip casting ending standard: when injected hole single fluid grouting, under the final value pressure of design, slip casting section midge amount is less than 20～35L/min, continues, after 30min, can finish slip casting.
5. injecting paste material.Injecting paste material should meet following requirement: slurry viscosity is low, and the property noted is good, and grout spreading range is suitable; Slurries calculus rate is high, impervious good, good stability, and calculus is soaked for a long time state change is not occurred in water.According to above-mentioned requirements, can select neat slurry and clay cement grout.Compared with neat slurry, the cost of clay cement grout only has 60% of neat slurry, and the property noted, stability and anti-dilution are better, when condition is suitable, should preferentially select, and its shortcoming is that intensity is lower, pulping complex process.
4) in boring and slip casting process, carry out in strict accordance with relevant technical requirements.
The present invention is as shown in Figure 3 a kind of be suitable for curtain-grouting technique that rich water mine down-hole exploitation water blockoff uses grouting process flow chart and find out in conjunction with Fig. 1, Fig. 2, its grouting process simplified summary is: ground depot sacked cement is transported to down-hole needs slip casting level, face and mix station, secondary pulp storage tank, grouting pump, Grouting Pipe, aperture high-pressure installation and carry out slip casting through work, reach after the final grouting pressure of design, finish slip casting, after further maintenance, cleaning bottom of hole, complete whole curtain-grouting operation.Specifically carry out according to following technological process:
1) first should analyze the hydrological engineering geologic information of exploratory bore-hole and tunnel, exploratory bore-hole in early stage situation about disclosing in early stage, find out mine Karst Fissures developmental state and mine water inrush situation;
2) choose suitable anti-seepage standard, its water plugging rate of General Requirements reaches 90% left and right, just may meet the smooth enforcement that mining is produced;
3) utilize underworkings and chamber to carry out the construction of slip casting tunnel and detecting water by pilot hole injected hole, and the supporting of shotcrete with steel bar nets method is taked in the unsteady tunnel of lithology;
4) infiltration that the maximal head can bear according to curtain and injecting paste material can allow is than falling the thickness of determining curtain-grouting;
5) conventionally adopt underground drill rig and the hidden hole drilling injected hole of each degree of constructing in down-hole, and aperture safety device is set, aperture safety device is made up of orifice tube, aperture water dam;
6) in conjunction with the situation of change of the factors such as transmission coefficient, fracture opening, grouting pressure, concentration of slurry and injection length, and according to " slurry injection technique code " regulation, determine slurry diffusion radius;
7) in whole slip casting process, grouting pressure along with injected hole around the situation such as diffusion, precipitating, filling pressure break of slurries variation and change at any time, generally be divided into initial pressure, pressure process and final value pressure three phases, design respectively the force value of this three phases;
8) choose slurry viscosity low, the property noted is good, and grout spreading range is suitable, and slurries calculus rate is high, impervious good, good stability, and calculus is soaked for a long time and material that state becomes is not occurred as injecting paste material, as neat slurry and clay cement grout in water;
9) for the crack of different in width, take the slurries of several variable concentrations, first rare rear dense;
10) in order to reach best slip casting effect, must inject enough slurries amounts, to ensure that slurries have certain range of scatter, form enough slip casting thickness.Analyze relatively according to the slip casting of similar mine, the slurry consumption amount of every meter of injected hole is 0.3～0.8t/m.
11) when injected hole single fluid grouting, under final value pressure, slip casting section midge amount is less than 20～35L/min, continues, after 30min, can finish slip casting.
Claims (4)
1. be suitable for the curtain-grouting technique that rich water mine down-hole exploitation water blockoff is used, it is characterized in that by the following technical solutions:
1) first should analyze the hydrological engineering geologic information of exploratory bore-hole and tunnel, exploratory bore-hole in early stage situation about disclosing in early stage, find out mine Karst Fissures developmental state and mine water inrush situation;
2) choose suitable curtain anti-seepage standard, require its water plugging rate to reach 80～95%;
3) utilize underworkings and chamber to carry out the construction of slip casting tunnel and detecting water by pilot hole injected hole, and the supporting of shotcrete with steel bar nets method is taked in the unsteady tunnel of lithology;
4) infiltration that the maximal head can bear according to curtain and injecting paste material can allow is than falling the curtain thickness of determining curtain-grouting: T=H
s/ J
0, m,
In formula: H
sthe maximal head that-curtain can bear, m,
J
0the infiltration ratio that-injecting paste material can allow falls;
5) face upward 5 °, 15 ° and 25 ° at each chamber arrangement upper to injected hole each 6, grouting borehole design is taking chamber center as basic point, each degree injected hole mutually staggers in the plane 60 ° and is evenly arranged, hole depth 45～60m, mutually staggers in the plane 20 ° and is evenly arranged between 5 °, 15 ° and 25 ° of injected holes; At end chamber arrangement to outside lower to-5 ° ,-30 ° and-60 ° of injected holes, hole depth 45～60m, to hold chamber center as basic point, each be arranged symmetrically with in the plane to injected hole down, angle is 10 ° mutually;
6) adopt underground drill rig and the hidden hole drilling injected hole of each degree of constructing in down-hole, and aperture safety device is set, aperture safety device is made up of orifice tube, aperture water dam;
7) grout spreading range that diffuse to form of slurries in crack must meet simultaneously:
1. design formulas: R=
In formula: R-is grout spreading range, m,
K-is rock stratum transmission coefficient,
T-slip casting perdurabgility, h,
R-feed pipe for mortar radius, mm,
μ
1the coefficient of viscosity of-water,
μ
2the coefficient of viscosity of-slurries,
H grouting pressure, MPa,
The porosity of n-rock stratum;
2. according to " slurry injection technique code " regulation, in marble fissured waterbearing stratum, slurries effectively spread radius gets 6～15m;
8), in whole slip casting process, respectively according to initial pressure, pressure process and final value pressure three phases, design respectively the force value of this three phases;
9) the slurry consumption amount of injected hole is 0.3～0.8t/m;
10) other parameter: injecting paste material, concentration of slurry, slip casting ending standard meet designing requirement.
2. a kind of curtain-grouting technique that rich water mine down-hole exploitation water blockoff is used that is suitable for as claimed in claim 1, is characterized in that: the described upper boring control net degree forming to injected hole is in 8m × 8m.
3. a kind of curtain-grouting technique that rich water mine down-hole exploitation water blockoff is used that is suitable for as claimed in claim 1 or 2, it is characterized in that: in the time that injected hole adopts single fluid grouting, under final value pressure, slip casting section midge amount is less than 20～35L/min, continues, after 30min, can finish slip casting.
4. a kind of curtain-grouting technique that rich water mine down-hole exploitation water blockoff is used that is suitable for as claimed in claim 3, it is characterized in that: the initial pressure of design is hydrostatic pressure 1.0 times, pressure process is controlled between 1.5～2 times of hydrostatic pressure values, and the final value pressure of design is 2.0～3.0 times of hydrostatic pressures.
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|---|---|---|---|
| CN201410150803.5A CN103967507B (en) | 2014-04-16 | 2014-04-16 | A kind of curtain-grouting technique being suitable for rich water mine down-hole exploitation water blockoff |
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| CN201410150803.5A CN103967507B (en) | 2014-04-16 | 2014-04-16 | A kind of curtain-grouting technique being suitable for rich water mine down-hole exploitation water blockoff |
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| CN105401971A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Surface and underground combined regional grouting method |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
| CN107386309A (en) * | 2017-08-15 | 2017-11-24 | 山东大学 | The prominent water burst method for blocking of the mine big flow high flow rate pipeline crack type karst that is recessed |
| CN108625895A (en) * | 2018-04-25 | 2018-10-09 | 贵州开磷集团股份有限公司 | A method of it detects and excludes dark solution cavity ponding in ore body |
| CN108708687A (en) * | 2018-05-23 | 2018-10-26 | 首钢滦南马城矿业有限责任公司 | A kind of unclosed borehole sealing technique and structure |
| CN108843343A (en) * | 2018-05-30 | 2018-11-20 | 陕煤集团神木张家峁矿业有限公司 | A kind of coal mine waits for covering the grouting method of burnt rock water seal curtain on mining face |
| CN112144507A (en) * | 2020-09-29 | 2020-12-29 | 西安工业大学 | Method for determining reinforcement parameters during soil body permeation grouting and reinforcement method using method |
| CN112879045A (en) * | 2021-02-03 | 2021-06-01 | 中煤科工集团西安研究院有限公司 | Method for building deep-buried huge-thickness solution gap fracture aquifer curtain |
| CN113217025A (en) * | 2021-05-21 | 2021-08-06 | 长沙矿山研究院有限责任公司 | Curtain grouting method suitable for rapid mining of large water deposit |
| CN113309565A (en) * | 2021-06-07 | 2021-08-27 | 中国矿业大学 | Large-space large-inclination goaf curtain grouting method |
| CN114278312A (en) * | 2021-12-31 | 2022-04-05 | 中铁五局集团有限公司 | Karst treatment construction method for river channel area in subway tunnel shield construction |
| CN114320308A (en) * | 2021-12-10 | 2022-04-12 | 北京中煤矿山工程有限公司 | Vertical shaft grouting curtain design and grouting process under deep asymmetric stress condition |
| CN114920308A (en) * | 2022-04-18 | 2022-08-19 | 长沙矿山研究院有限责任公司 | Underground mine wastewater zero discharge process |
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| CN105401971A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Surface and underground combined regional grouting method |
| CN105401971B (en) * | 2015-09-02 | 2017-10-27 | 煤科集团沈阳研究院有限公司 | Combine regional grouting method above and below a kind of well |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
| CN107386309A (en) * | 2017-08-15 | 2017-11-24 | 山东大学 | The prominent water burst method for blocking of the mine big flow high flow rate pipeline crack type karst that is recessed |
| CN108625895A (en) * | 2018-04-25 | 2018-10-09 | 贵州开磷集团股份有限公司 | A method of it detects and excludes dark solution cavity ponding in ore body |
| CN108708687A (en) * | 2018-05-23 | 2018-10-26 | 首钢滦南马城矿业有限责任公司 | A kind of unclosed borehole sealing technique and structure |
| CN108708687B (en) * | 2018-05-23 | 2021-05-28 | 首钢滦南马城矿业有限责任公司 | Unsealed drilling hole plugging process and structure |
| CN108843343A (en) * | 2018-05-30 | 2018-11-20 | 陕煤集团神木张家峁矿业有限公司 | A kind of coal mine waits for covering the grouting method of burnt rock water seal curtain on mining face |
| CN108843343B (en) * | 2018-05-30 | 2019-07-30 | 陕煤集团神木张家峁矿业有限公司 | A kind of coal mine waits for covering the grouting method of burnt rock water seal curtain on mining face |
| CN112144507A (en) * | 2020-09-29 | 2020-12-29 | 西安工业大学 | Method for determining reinforcement parameters during soil body permeation grouting and reinforcement method using method |
| CN112879045A (en) * | 2021-02-03 | 2021-06-01 | 中煤科工集团西安研究院有限公司 | Method for building deep-buried huge-thickness solution gap fracture aquifer curtain |
| CN113217025A (en) * | 2021-05-21 | 2021-08-06 | 长沙矿山研究院有限责任公司 | Curtain grouting method suitable for rapid mining of large water deposit |
| CN113309565A (en) * | 2021-06-07 | 2021-08-27 | 中国矿业大学 | Large-space large-inclination goaf curtain grouting method |
| CN113309565B (en) * | 2021-06-07 | 2022-06-24 | 中国矿业大学 | Large-space large-inclination goaf curtain grouting method |
| CN114320308A (en) * | 2021-12-10 | 2022-04-12 | 北京中煤矿山工程有限公司 | Vertical shaft grouting curtain design and grouting process under deep asymmetric stress condition |
| CN114320308B (en) * | 2021-12-10 | 2024-01-02 | 北京中煤矿山工程有限公司 | Design of vertical shaft grouting curtain and grouting process under deep asymmetric stress condition |
| CN114278312A (en) * | 2021-12-31 | 2022-04-05 | 中铁五局集团有限公司 | Karst treatment construction method for river channel area in subway tunnel shield construction |
| CN114278312B (en) * | 2021-12-31 | 2023-10-17 | 中铁五局集团有限公司 | Karst treatment construction method for river channel region in subway tunnel shield construction |
| CN114920308A (en) * | 2022-04-18 | 2022-08-19 | 长沙矿山研究院有限责任公司 | Underground mine wastewater zero discharge process |
| CN114920308B (en) * | 2022-04-18 | 2023-02-07 | 长沙矿山研究院有限责任公司 | Underground mine wastewater zero discharge process |
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Co-patentee after: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Co-patentee after: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH, ENGINEERING INVESTIGATION AND DESIGN Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Co-patentee before: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. Co-patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH, ENGINEERING INVESTIGATION AND DESIGN Co.,Ltd. |
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Effective date of registration: 20221103 Address after: 243000 No. 666 Xitang Road, Ma'anshan Economic Development Zone, Anhui Province Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Patentee after: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 243000 No. 666 Xitang Road, Ma'anshan Economic Development Zone, Anhui Province Patentee before: MAANSHAN Mine Research Institute Co.,Ltd. Patentee before: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH, ENGINEERING INVESTIGATION AND DESIGN Co.,Ltd. |
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