CN107313788A - The method and device of grouting for water blocking under strong hydraulic connection - Google Patents
The method and device of grouting for water blocking under strong hydraulic connection Download PDFInfo
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- CN107313788A CN107313788A CN201710707390.XA CN201710707390A CN107313788A CN 107313788 A CN107313788 A CN 107313788A CN 201710707390 A CN201710707390 A CN 201710707390A CN 107313788 A CN107313788 A CN 107313788A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000000903 blocking effect Effects 0.000 title claims abstract description 24
- 238000005553 drilling Methods 0.000 claims abstract description 75
- 238000007569 slipcasting Methods 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims abstract description 13
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 20
- 239000004576 sand Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 235000010469 Glycine max Nutrition 0.000 claims description 4
- 244000068988 Glycine max Species 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of method and device of grouting for water blocking under strong hydraulic connection, including by Water in mined area area physical prospecting situation, obtain the position of water passage, and according to water passage Position Design drill site position and the parameter of inlet well；According to the parameter of the drilling, bore operation is carried out and carries out orifice tube to divide into；Orifice tube is divided into finish after, carry out slip casting operation；After slip casting terminates solidification, pressure test is carried out to drilling using clear water.The present invention provides a kind of method and device of grouting for water blocking under strong hydraulic connection, is blocked by the slip casting to water passage, eliminates the hidden water dezaster in not clear goaf.
Description
Technical field
The invention belongs to coal mine gob water damage integrated control field, the side of grouting for water blocking under more particularly to strong hydraulic connection
Method and device.
Background technology
Grouting and sealing technique be Pitwater disaster administer important means, due to rock mass have various structures, anisotropy,
The features such as hydrogeologic condition otherness is big, severe challenge is proposed for mine water disaster grouting treatment.Grouting theory is in stream
Grow up in the theoretical foundation of mechanics, hydraulics, Solid Mechanics etc., the liquid form and process of setting to slurries are carried out
Analysis process.In fact, the liquid form of slurries in the earth formation is various, and these forms of motion are along with the change of formation properties
Change, the change of the property of slurries and pressure and constantly change or and deposit, and subsurface contains a variety of geological stratifications, particularly the
Four be to rush in diluvial formation, and bored grouting water blockoff is increasingly difficult；At present, with increasing for being drilled under the conditions of complicated geological environment, bore
Bar part serious wear, causes scrapping for drilling rod, or even cause down-hole equipment failure or accident occur.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides slip casting under a kind of strong hydraulic connection
The method and device of water blockoff, is blocked by the slip casting to water passage, eliminates the hidden water dezaster in not clear goaf.
Technical scheme：To achieve the above object, technical scheme is as follows：
The method of grouting for water blocking, comprises the following steps under strong hydraulic connection：
By Water in mined area area physical prospecting situation, the position of water passage is obtained, and bore according to the Position Design of water passage
The position of field and the parameter of inlet well；
According to the parameter of the drilling, bore operation is carried out and carries out orifice tube to divide into；
Orifice tube is divided into finish after, carry out slip casting operation；
After slip casting terminates solidification, pressure test is carried out to drilling using clear water.
Further, the drill site Position Design concrete foundation construction drill site, this inlet well is bored comprising several
Hole, and single row of holes arrangement is pressed in the drilling, and position of opening is respectively positioned in concrete foundation.
Further, design arrangement inlet well 10, borehole bottom location spacing 4.5m~10m, hole depth 20.3m~35.5m.
Further, slip casting method is circulated using segmented in the bore operation, comprised the following steps：
1. perforate is carried out using start bit, drilling occurs stopping drilling when not returning the phenomenon of water immediately, carries brill and accurate
Measure chi more than drilling rod；
If 2. drilling rod and drill bit are unplugged, it is determined as the leak that drills, need to be to carrying out grouting and reinforcing around hole wall；
3. after hole wall is reinforced, if drilling starts to return water, continue to implement to creep into, carried out before drilling drilling to predeterminated position last
Once grouting Reinforcing hole wall；
4. cleaning bottom of hole is carried out after the reinforcing of drilling last time hole wall terminates using the drill bit of No. one smaller than start bit；
5. the orifice tube less than boring aperture is then divided into, and orifice tube divides into the half depth that length is not more than hole depth.
Further, during slip casting operation, cement grout is injected into drilling using grouting pump, wait until pressure reach 3MPa and
After holding time no less than 3 minutes, slip casting can be stopped；
First time slip casting terminates cement after 8h and solidified, and carries out second of slip casting until hole wall surrounding rock crack is full of water
Mud；
Slip casting terminates after 16h to be solidified, and pressure test is carried out to drilling using clear water, and test pressure control is 3MPa, such as
Fruit test pressure maintains the 3MPa duration to be no less than 30min, then the hole slip casting end-of-job.
Further, the slip casting includes the slurries of the three-level ratio of mud, the grey weight ratio respectively 2 of water of the slurries:1、
1:1、0.5:1。
Further, the slurries include cement mortar and/or admixture；The admixture is sand, waterglass, soybean and stone
Son.
Further, the sand is the hard natural sand or artificial sand that particle diameter is not more than 2.5mm, and gravel modulus of fineness is little
In 2.0, clay content is not more than 3%；The modulus of the waterglass is 2.4~3.0, and concentration is 30~45 Baume degrees；The stone
Particle diameter be 5mm~15mm.
Further, under strong hydraulic connection grouting for water blocking device, including drilling rod, the drilling rod is auger stem, described
Drilling rod center section is that spacing is provided with two shoulders in polished rod portion, the polished rod portion, and two shoulders outsides are provided with resistance to
Grinding set, the external diameter of the wear-resistant sleeve is equal with auger stem external diameter；In the drilling rod limbers, the drilling rod are offered along axis
Two ends be respectively arranged with male screw thread and female screw thread.
Further, the helical blade of identical pitch, the helical-blade are provided with the spiral part of the auger stem
The external diameter of piece is less than the spire external diameter of auger stem.
Beneficial effect：It is to rush diluvial formation grouting reinforcement difficulty, winter construction concrete setting speed that the present invention, which solves the 4th,
The problems such as spending slow, improves slip casting and applies by adjusting the slurry ratio of mud, interval slip casting, the injection method such as admixture and a variety of aggregates
Work efficiency rate；And by way of segmented circulates slip casting method and surface grout injection borehole sealing river and the strong water passage in goaf；
Ensure that orifice tube divides into quality by resistance test, improve slip casting effect；Simultaneously there is provided a kind of drilling rod of probing, middle part
Wearing layer is provided with, increases the wearability of drilling rod, double helix blade improves the service life of drilling rod.
Brief description of the drawings
Accompanying drawing 1 is the flow chart of grouting water blocking method under the strong hydraulic connection of the present invention；
Accompanying drawing 2 is the jackrod structure figure of grouting for water blocking under the strong hydraulic connection of the present invention；
Accompanying drawing 3 is the drilling rod half-section diagram of grouting for water blocking under the strong hydraulic connection of the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Such as flow chart of the accompanying drawing 1 for grouting water blocking method under the strong hydraulic connection of the present invention.
The method of grouting for water blocking, comprises the following steps under strong hydraulic connection：
By Water in mined area area physical prospecting situation, the position of water passage is obtained, and bore according to the Position Design of water passage
The position of field and the parameter of inlet well；
According to the parameter of the drilling, bore operation is carried out and carries out orifice tube to divide into；
Orifice tube is divided into finish after, carry out slip casting operation；
After slip casting terminates solidification, pressure test is carried out to drilling using clear water.
The drill site Position Design concrete foundation construction drill site, this inlet well includes several and drilled, and described
Drilling is respectively positioned in concrete foundation by single row of holes arrangement, and position of opening.This slip casting drill site Position Design concrete foundation
Construction drill site, the long 5m of concrete foundation, wide 4m, plane is rectangular, and drill site is arranged in above old dead zone EXIT POINT.
This design arrangement inlet well 10, borehole bottom location spacing 4.5m~10m, hole depth 20.3m~35.5m.Aperture
Length of tube is the depth of 0.2m to 1m below subterrane on earth's surface.The borehole bottom location that drills is to enter auxiliary coal seam 1m.It can make
WithDrill bit construction drill, construction drill depth is up to 200m.
Slip casting method is circulated using segmented in the bore operation, comprised the following steps：
1. perforate is carried out using start bit, drilling occurs stopping drilling when not returning the phenomenon of water immediately, carries brill and accurate
Measure chi more than drilling rod；
If 2. drilling rod and drill bit are unplugged, it is determined as the leak that drills, need to be to carrying out grouting and reinforcing around hole wall；
3. after hole wall is reinforced, if drilling starts to return water, continue to implement to creep into, carried out before drilling drilling to predeterminated position last
Once grouting Reinforcing hole wall；
4. cleaning bottom of hole is carried out after the reinforcing of drilling last time hole wall terminates using the drill bit of No. one smaller than start bit；
5. the orifice tube less than boring aperture is then divided into, and orifice tube divides into the half depth that length is not more than hole depth.
Drilling construction circular order is divided into for drilling-slip casting-and crept into after orifice tube-drilling, perforate to 2m positions at present
If first segment orifice tube, often drilling 2m divides into an orifice pipe later, until creeping into design attitude.
Orifice tube is divided into finish after, carry out slip casting operation, cement grout is injected into drilling using grouting pump, pressure is waited until
After reaching 3MPa and holding time no less than 3 minutes, slip casting can be stopped；
First time slip casting terminates cement after 8h and solidified, and carries out second of slip casting until hole wall surrounding rock crack is full of water
Mud；
Slip casting terminates after 16h to be solidified, and pressure test is carried out to drilling using clear water, and test pressure control is 3MPa, such as
Fruit test pressure maintains the 3MPa duration to be no less than 30min, then the hole slip casting end-of-job.
Grouting pressure uses the slip casting operational pressure behind 1.5~2MPa, the whole hole of drilling to use 3MPa during drilling drilling, presses
Power can adjust determination during mortar depositing construction.Design pressure should be reached during slip casting as early as possible, takes classification to rise when injection rate is big
Pressure.
The slip casting includes the slurries of the three-level ratio of mud, the grey weight ratio respectively 2 of water of the slurries:1、1:1、0.5:1.
The ratio of mud of initial grouting serous fluid is 2:1.
The slurries include cement mortar and/or admixture；The admixture is sand, waterglass, soybean and stone.The sand
It is not more than 2.5mm hard natural sand or artificial sand for particle diameter, gravel modulus of fineness is not more than 2.0, and clay content is not more than 3%；
The modulus of the waterglass is 2.4~3.0, and concentration is 30~45 Baume degrees；The particle diameter of the stone is 5mm~15mm.Slip casting
Slurries are converted：When grouting pressure keep it is constant, when injection rate is persistently reduced, or when injection rate is constant and pressure is persistently raised,
The ratio of mud must not be changed；When a certain injection rate than level slurries is up to more than 20 tons, and grouting pressure and injection rate are without substantially
During change, change dense one-level, continue to improve slurries if improved after slurries rank, when grouting pressure and injection rate are still without significant change
The aggregate such as rank or injection stone, soybean.
The early stage physical prospecting of the method for grouting for water blocking includes verifying water guide by transient electromagnetic detecting technology under strong hydraulic connection
Passage low-resistance band singularly, utilizes Water in mined area area physical prospecting achievement, it is contemplated that the quiet reserves of water in gob area, is dredged by unrestrained water drilling hole
Waterdrainage amount is analyzed, and is judged that goaf is present and is stablized nourishment source, abnormal with reference to transient electromagnetic low-resistance, determines feed channel position；
By to the water-bearing layers such as goaf water, Quaternary aquifer water, storehouse car river and water quality chemical examination and signature analysis, it is determined that mending
Water-supply source, is analyzed by mining overburden structural analysis, the analysis of mining induced fissure spreading fracture and solid-liquid coupling Percolation Law, sets up storehouse
Car river seepage flow feeds old dead zone mechanical model.Bored grouting slurries seepage flow mechanics theory in rock stratum hole, crack is analyzed, is built
Vertical slurries flow model in porous media, then simultaneously construction ground inlet well blocks river and the strong water passage in goaf for design.
The device of grouting for water blocking under strong hydraulic connection, including drilling rod, the drilling rod is auger stem, the drilling rod pars intermedia
It is divided into spacing in polished rod portion, the polished rod portion and is provided with two shoulders 3, two outsides of shoulder 3 is provided with wear-resistant sleeve 4, institute
The external diameter for stating wear-resistant sleeve 4 is equal with auger stem external diameter；In the drilling rod limbers 5, the two of the drilling rod are offered along axis
End is respectively arranged with male screw thread and female screw thread.Male threaded portion is provided with baffle plate 6, baffle plate 6 and is provided with sealing gasket,
Spacing and sealing function is played when being connected more with drilling rod；The male screw thread and female screw thread are the rectangular thread with pitch, are made
When many drilling rods are used in conjunction with each other, compared to existing common 60 ° of screw threads and taper thread, it can provide relatively stable torque and pass
It is dynamic, it is particularly suitable for using in many rock stratum areas.Drilling rod body by high-quality 42CrMoV materials through it is overall it is quenched process there is provided
Higher hardness and intensity, wearing layer can increase the service life of drilling rod, while reducing the abrasion of spire 1.
The helical blade 2 of identical pitch, the external diameter of the helical blade 2 are provided with the spiral part of the auger stem
Less than the 3~5mm of external diameter of spire 1 of auger stem.After the abrasion of spire 1, the dynamics of the intensity of its drilling rod and lower brill will be big
Big to reduce, now unworn helical blade 2 can replace spire 1 to be bored under carrying out, and the service life of increase drilling rod is saved into
This.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
- The method of grouting for water blocking under the last 1. hydraulic connection, it is characterised in that：Comprise the following steps：By Water in mined area area physical prospecting situation, obtain the position of water passage, and according to the Position Design drill site of water passage Position and the parameter of inlet well；According to the parameter of the drilling, bore operation is carried out and carries out orifice tube to divide into；Orifice tube is divided into finish after, carry out slip casting operation；After slip casting terminates solidification, pressure test is carried out to drilling using clear water.
- 2. the method for grouting for water blocking under strong hydraulic connection according to claim 1, it is characterised in that：The drill site position is set Concrete foundation construction drill site is counted, this inlet well drills comprising several, and single row of holes arrangement, and perforate are pressed in the drilling Position is respectively positioned in concrete foundation.
- 3. the method for grouting for water blocking under strong hydraulic connection according to claim 2, it is characterised in that：Design arrangement slip casting is bored 10, hole, borehole bottom location spacing 4.5m~10m, hole depth 20.3m~35.5m.
- 4. the method for grouting for water blocking under strong hydraulic connection according to claim 1, it is characterised in that：In the bore operation Slip casting method is circulated using segmented, comprised the following steps：1. perforate is carried out using start bit, drilling occurs stopping drilling when not returning the phenomenon of water immediately, carries and bore and accurately measure Chi more than drilling rod；If 2. drilling rod and drill bit are unplugged, it is determined as the leak that drills, need to be to carrying out grouting and reinforcing around hole wall；3. after hole wall is reinforced, if drilling starts to return water, continue to carry out last time before implementing drilling, drilling drilling to predeterminated position Grouting and reinforcing hole wall；4. cleaning bottom of hole is carried out after the reinforcing of drilling last time hole wall terminates using the drill bit of No. one smaller than start bit；5. the orifice tube less than boring aperture is then divided into, and orifice tube divides into the half depth that length is not more than hole depth.
- 5. the method for grouting for water blocking under strong hydraulic connection according to claim 1, it is characterised in that：During slip casting operation, make Cement grout is injected into drilling with grouting pump, after waiting until that pressure reaches 3MPa and held time no less than 3 minutes, can be stopped Slip casting；First time slip casting terminates cement after 8h and solidified, and carries out second of slip casting until hole wall surrounding rock crack is full of cement Slurry；Slip casting terminates after 16h to be solidified, pressure test is carried out to drilling using clear water, test pressure control is 3MPa, if examination Testing pressure maintains the 3MPa duration to be no less than 30min, then the hole slip casting end-of-job.
- 6. the method for grouting for water blocking under strong hydraulic connection according to claim 1, it is characterised in that：The slip casting includes three The slurries of the level ratio of mud, the grey weight ratio respectively 2 of water of the slurries:1、1:1、0.5:1.
- 7. the method for grouting for water blocking under strong hydraulic connection according to claim 1, it is characterised in that：The slurries include water Mud and/or admixture；The admixture is sand, waterglass, soybean and stone.
- 8. the method for grouting for water blocking under strong hydraulic connection according to claim 7, it is characterised in that：The sand be particle diameter not Hard natural sand or artificial sand more than 2.5mm, gravel modulus of fineness are not more than 2.0, and clay content is not more than 3%；The water glass The modulus of glass is 2.4~3.0, and concentration is 30~45 Baume degrees；The particle diameter of the stone is 5mm~15mm.
- The device of grouting for water blocking under the last 9. hydraulic connection, it is characterised in that：Including drilling rod, the drilling rod is auger stem, described Drilling rod center section is that spacing is provided with two shoulders (3) in polished rod portion, the polished rod portion, and two shoulders (3) outsides are all provided with Wear-resistant sleeve (4) is equipped with, the external diameter of the wear-resistant sleeve (4) is equal with auger stem external diameter；Offered in the drilling rod along axis logical Water hole (5), the two ends of the drilling rod are respectively arranged with male screw thread and female screw thread.
- 10. the device of grouting for water blocking under strong hydraulic connection according to claim 9, it is characterised in that：The auger stem Spiral part on be provided with the helical blade (2) of identical pitch, the external diameter of the helical blade (2) is less than the spiral shell of auger stem Rotation portion (1) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707390.XA CN107313788B (en) | 2017-08-17 | 2017-08-17 | The method and device of grouting for water blocking under strong hydraulic connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707390.XA CN107313788B (en) | 2017-08-17 | 2017-08-17 | The method and device of grouting for water blocking under strong hydraulic connection |
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| CN107313788A true CN107313788A (en) | 2017-11-03 |
| CN107313788B CN107313788B (en) | 2019-05-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915690A (en) * | 2018-07-06 | 2018-11-30 | 中钢集团马鞍山矿山研究院有限公司 | Prevent the new method of shaft wall water burst in the driving of vertical shaft water-bearing layer |
| CN109098688A (en) * | 2018-10-15 | 2018-12-28 | 山东交通学院 | Soft aggregate anti-blocking construction technology safely in a kind of down-hole extra-deep hole drilling |
| CN109723466A (en) * | 2018-12-10 | 2019-05-07 | 中交一公局桥隧工程有限公司 | Tunnel primary support seepage grouting treatment construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915690A (en) * | 2018-07-06 | 2018-11-30 | 中钢集团马鞍山矿山研究院有限公司 | Prevent the new method of shaft wall water burst in the driving of vertical shaft water-bearing layer |
| CN109098688A (en) * | 2018-10-15 | 2018-12-28 | 山东交通学院 | Soft aggregate anti-blocking construction technology safely in a kind of down-hole extra-deep hole drilling |
| CN109098688B (en) * | 2018-10-15 | 2020-07-07 | 山东交通学院 | Safe anti-blocking construction process for soft aggregate in underground ultra-deep drill hole of mine |
| CN109723466A (en) * | 2018-12-10 | 2019-05-07 | 中交一公局桥隧工程有限公司 | Tunnel primary support seepage grouting treatment construction method |
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