CN106988780A - A kind of girdle goaf paste body filling construction method - Google Patents
A kind of girdle goaf paste body filling construction method Download PDFInfo
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- CN106988780A CN106988780A CN201710319400.2A CN201710319400A CN106988780A CN 106988780 A CN106988780 A CN 106988780A CN 201710319400 A CN201710319400 A CN 201710319400A CN 106988780 A CN106988780 A CN 106988780A
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- goaf
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 279
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 26
- 238000001802 infusion Methods 0.000 claims description 18
- 238000007569 slipcasting Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 210000004911 serous fluid Anatomy 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 5
- 239000006210 lotion Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims 1
- 239000003673 groundwater Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003245 coal Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000005273 aeration Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of girdle goaf paste body filling construction method, it is characterized in that, after underground water seepage is contained with water pocket, backfill in goaf, goaf segment space is occupied using water-filling water pocket, the mode for correspondingly reducing paste body filling volume carries out goaf filling, water-filling water pocket is finally cured in the obturation in whole goaf, as a composition part in obturation entirety.Water-filling water pocket is rubber bag tank, is provided with the through hole for filling firm pipe insertion, and water pocket injection water is directly derived from underground water seepage, has not only eliminated underground flood damage but also has eliminated and has arranged obtained pollute in coal production outside the waste water of underground.The features such as present invention has safe and reliable, environmental friendly, simple to operate, filling cost relative moderate.
Description
Technical field
The paste body filling of filler is done the present invention relates to a kind of paste body filling method, more particularly to a kind of utilization mine water
Method.
Background technology
In the coal production process of prior art, there is both sides not enough：One is, in unit coal production cost,
Filling cost accounting is higher, also, wastes time and energy；The second is, while row forms pollution outside the water seepage of underground, also bring water pump
The increase of pumping equipment and operating cost.
Constantly bring forth new ideas and convert with energy-saving, green production process, particularly, with coal resources day decrescence
Less, high-quality mining deposits is increasingly exhausted, and coal enterprise completes from low water-mark traditional in early days, rough, predation type exploitation already
Mode, to the resources conservation by technological progress, efficient utilization, the transformation of the technique environmental protection mode of production.
In recent years, underground goaf filling technique is developed rapidly.For example, Chinese patent application CN105240048A
A kind of gas filling method based on paste body filling is disclosed, it uses airbag aeration to occupy part goaf space, and then
The technical thought of the spatial volume of filling carries out goaf filling needed for correspondingly reducing paste body filling, to save filling cost.
Its placement method comprises the following steps：The first step, air bag is laid on the ground in goaf, divider wall is then set, and is divided into envelope
The filling space closed.Second step, cloth tube, gas tube and the high-pressure pump phase of air bag are arranged by the expects pipe mounting hole of divider wall
Connection.3rd step, during by paste body filling ground level to 20~30cm, to airbag aeration, keeps paste body filling and airbag aeration
It is synchronous to carry out.When the top surface of lotion to be filled is touched at the top of filling space, paste body filling is completed.Continue to airbag aeration, extremely
Air pressure in air bag reaches the pressure of overlying rock, closes high-pressure pump, completes gas filling.4th step, repeats the first step, the
Two steps and the 3rd step, carry out next one filling.
This method increases gas filling technique on the basis of paste body filling, can effectively reduce filling and owe to connect top amount, carry
High pack completeness, saves filler, it is ensured that the support strength of obturation.But, this gas filling side based on paste body filling
Method still has many deficiencies or shortcoming, and mainly downhole safety hidden danger will be substantially increased.Reason is：
1st, during filling construction operation, when running into the accidental phenomenons such as top plate quickly sinks or part is caving, it will cause
Balloon rupture/blast, brings a certain degree of potential safety hazard；Also, the difficult of construction operation correspondingly, will be caused anti-with safety
The raising for the construction cost that model is derived.
2nd, after the completion of filling construction, the substantial amounts of inflation gas bag landfill with larger pressure is in underground, with top plate day
Long with the passing of time sinking is until stable lengthy procedure, and the pressure of air bag is by the quick liter of the internal pressure caused by constantly by compression
Height, the possibility of capsule rupture/blast will sporadically occurs.
In other words, landfill is buried in the substantial amounts of inflation gas bag of underground similar to the high underground required in security protection
Descend one by one, " blasting charge " that may be ignited at any time has certain potential safety hazard.
The content of the invention
It is an object of the present invention to provide a kind of a kind of environmental friendly, simple to operate, filling cost relative moderate girdle
Goaf paste body filling construction method.
To achieve the above object, the technical problem of required solution includes two aspects to the present invention, and one is, process safety,
Environmental protection；Two are, reduce filling cost.
The present invention is solution above-mentioned technical problem the technical scheme adopted is that a kind of girdle goaf paste body filling is applied
Work method, it is characterised in that after underground water seepage is contained with water pocket, backfill in goaf, occupy mined out using water-filling water pocket
Area's segment space, the mode for correspondingly reducing paste body filling volume carries out goaf filling, and water-filling water pocket is finally cured in whole
In the obturation in individual goaf, as a composition part in obturation entirety；
The water pocket is rubber bag tank, in partially flat elongate in shape；Along the longitudinal direction of water pocket, on the inside of water pocket top edge every
Certain distance sets one to insert through hole for filling pipe；When water pocket is in swelling state full of water, the latus rectum of above-mentioned through hole
Filling steel pipe is met to insert and form sealed requirement；
The water pocket carries a water filling mouth of pipe and an exhaust pipe mouth, and the water filling mouth of pipe and an exhaust pipe mouth are arranged in
On the inside of the end edge of water pocket one end, the water filling mouth of pipe is under, exhaust pipe mouth is upper；
Above-mentioned water injection pipe mouth is internally provided with a check valve, and exhaust pipe mouth band internal thread is blocked using plug；
The length of above-mentioned water pocket is equal to the air line distance between the lane side of upper curtate and the lane side of lower curtate, the width of water pocket
It is equal with the height of water pocket, equal to the distance between top plate and bottom plate；
The height of water pocket is determined as follows：When water pocket is in swelling state full of water, water pocket is in what is lain low
Elliptic cylindrical shape, now, the oval minor axis length of water pocket longitudinal cross-section are the height of water pocket；
Construction procedure is as follows：
The first step, along advance of the face direction, on the bottom plate in the empty top zone domain in the goaf at working face rear, every 3
Rice one water pocket of laying；Wherein, first water pocket is laid in front of the original position of filling at 3 meters；
When water pocket is laid, the two ends of water pocket are kept to be in contact respectively with the lane side of upper curtate and the lane side of lower curtate, water pocket
The water filling mouth of pipe and an exhaust pipe mouth where that one end be placed on the high order end of bottom plate, and be vented the water filling mouth of pipe and one
The mouth of pipe is towards working face side；
After water pocket laying is in place, in water pocket on the bottom plate of working face side, along the longitudinal direction of water pocket, every 0.5
Rice makes a call to a timber against water pocket；
Then, the plug of water pocket exhaust pipe mouth is backed out, water injection pipe is inserted to the water filling mouth of pipe of water pocket, injects few into water pocket
The water of amount, so that at the same time water pocket lower expansion, fills in polystyrene foam to being contacted with timber between timber and water pocket
Plate；, using timber to after water filling water pocket carry out it is spacing, using XPS protection water pocket avoid because directly being contacted with hard thing
Punctured or wear damage caused by possible；
Second step, keeps the exhaust pipe mouth of water pocket to open, the infusion gun being connected with outlet pipe is inserted to the water injection pipe of water pocket
Mouthful, open the Water filling valve in front of infusion gun, the water filling into water pocket；
When water injection rate reaches more than half of water pocket capacity in water pocket, by the Grouting Pipe being connected with underground grouting pipeline from
Water pocket is stretched to away from the goaf to be filled of working face side for passing through and being put into filling pipe insertion through hole on water pocket；
3rd step, opens the valve in the Grouting Pipe being connected with underground grouting pipeline, to water pocket away from working face side
Slip casting in region；
According to slip casting progress, between the outlet pipe of the in good time above-mentioned infusion gun of unlatching/closing and shaft sump on connecting line
Valve, with alternately slip casting and water pocket water flood operations, can effectively be hindered so that the height of the water pocket after water-filling is remained at
Keep off grouting serous fluid, it is to avoid grouting serous fluid highly rises, more than water pocket highly, and then side of the overflow to water pocket towards working face；
In the process, when above-mentioned exhaust pipe mouth overflow, the Water filling valve closed in front of infusion gun, and continue to keep note
Slurry operation, until water pocket is completed away from working face side goaf to be filled by paste body filling；
Then, the Water filling valve in front of infusion gun is opened, continues the water filling into water pocket, until close with top plate at the top of water pocket
When fitting and the state compressed is presented, close Water filling valve, extract infusion gun out, terminate water pocket water flood operations；
4th step, according to the propulsion progress of working face, moves forward to appropriate position by filling support in good time, repeats above-mentioned the
One step is to the 3rd step, until whole stope filling is fully completed.
The technical effect directly brought by the technical proposal is that, underground water seepage is completely or partially recycled, on the spot
Digestion process, is directly backfilled to underground goaf, can eliminate and caused environmental pollution is arranged outside coal production process waste water；
Also, played the same tune on different musical instruments with the gas filling method of prior art：The volume of paste body filling is effectively reduced, cream is reduced
The usage amount of body raw material, so as to reduce filling cost.But it is clear that ground, above-mentioned technical proposal can be fully achieved it is existing
The gas filling method of technology eliminates the gas filling of prior art while the technique effect in terms of filling cost saving
During method construction operation, and after the completion of construction operation, the potential safety hazard of all stage.It is explained in detail below：
The embedded water-filling water pocket in underground, even if in the long period in the future using rear because crushing or the reason such as ageing of rubber
After rupture, because liquid (water) is almost incompressible.
Therefore, be not in similar air bag because being compressed, pressure steeply rise so that air bag explosion rupture, institute's enable
The rapidly release of amount, the generation for the unpredictable Disasters that may be brought.
Moreover, after the rupture of water-filling water pocket, water is as fluid, by each crack for flowing to underground filling naturally, each defect area
Domain.So, in a confined space on the whole, due to the inevitable uniformity of pressure everywhere, the whole fill area in underground
More consistent and uniform will be become everywhere to the support force of top top plate and upper overlying strata, so as to obtain than all using paste body filling
Or combine filling superior technique effect with air bag using lotion.
Further, since water pocket water-filling is backfilled to underground, due to born security so that the use cost of its own is also remote
Less than the gas filling method of prior art.
It should be noted that set on water pocket for filling steel pipe insertion through hole, in a through hole insertion filling steel
When pipe is to goaf grouting, due to fully being expanded after rubber bag with water water-filling, remaining through hole will be tightened, in closure state,
Grouting serous fluid can be prevented effectively from trickled from through hole and come out；Also, this through hole closed because tightening up does not influence slip casting steel pipe
Insertion operation.It is not difficult to find out, simple rubber bag with water structure is simple to operate in grouting filling work progress, and holds simultaneously
Carry on a shoulder pole the function of divider wall.Therefore, the filling construction method of above-mentioned technical proposal, relative to prior art, has dispensed and had constructed
Divider wall in journey.On the one hand, reduce construction work amount, saved construction cost, on the other hand, reduce underground work people
The labor intensity of member.
Preferably, above-mentioned water pocket material is abrasive rubber；The rated operating pressure of water pocket is more than 1.5MPa.
What the optimal technical scheme was directly brought has the technical effect that, on the one hand, the rated operating pressure of water pocket is 1.5MPa
More than, the pressure voltage such as its corresponding supporting water pipe, valve can meet requirements, can effectively reduce the investment of related corollary equipment with
Use cost；On the other hand, too low rated operating pressure, will be caused in paste body filling work progress, and water-filling water pocket can not have
Effect balance stops the pressure of lotion " fluid ", causes the production accident in work progress or constructional difficulties, and too high volume
Determine operating pressure, material transition will be brought to use caused waste, effective reduction of influence filling construction cost.
Further preferably, above-mentioned girdle goaf paste body filling construction method, it is characterised in that the paste body filling
The thickness of the obturation formed, is to be determined according to specific underground water seepage discharge after the volume of water-filling water pocket, calculates institute
After the cumulative volume for needing paste body filling, the interval as far as possible one between the obturation and water-filling water pocket that are formed according to each paste body filling
The principle of cause, it is determined that and according to the reality of underground water seepage discharge, adjustment in good time is drawn.
What the optimal technical scheme was directly brought is had the technical effect that, filling for whole underground goaf can be caused as much as possible
Fill out uniformity everywhere, it is ensured that good filling quality.
Further preferably, above-mentioned girdle goaf paste body filling construction method, it is characterised in that used in water pocket water filling
Water is preferential directly to be extracted from underground water seepage；
Not enough water, by usually from underground extract, be delivered to the water storehouse on ground in water storage feed.
What the optimal technical scheme was directly brought has the technical effect that, can bring the zero-emission of waste water in coal production process
Put, reach the requirement of friendly process.Also, drainage system corollary equipment outside underground in the prior art correspondingly, can be simplified
With number of units, the investment of relevant device is saved.
In summary, the present invention is relative to prior art, with safe and reliable, environmental friendly, simple to operate, filling cost
The beneficial effects such as relative moderate.
Brief description of the drawings
The structural representation of Fig. 1 water pockets used in the girdle goaf paste body filling construction method of the present invention.
In figure, 1- water pockets, 2- exhaust pipe mouths, the 3- water filling mouths of pipe, 4- through holes.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
The present invention girdle goaf paste body filling construction method, using after underground water seepage is contained with water pocket, return
Fill out in goaf, goaf segment space is occupied using water-filling water pocket, the mode for correspondingly reducing paste body filling volume is adopted
Filling mine-out area, water-filling water pocket is finally cured in the obturation in whole goaf, as a composition in obturation entirety
Part；
As shown in figure 1, above-mentioned water pocket 1 is rubber bag tank, in partially flat elongate in shape；Along the longitudinal direction of water pocket, at the top of water pocket
One is set at a certain distance on the inside of edge inserts through hole 4 for filling pipe；When water pocket is in swelling state full of water, on
The latus rectum for stating through hole meets filling steel pipe and inserts and form sealed requirement；
Above-mentioned water pocket carries a water filling mouth of pipe 2 and an exhaust pipe mouth 3, and the water filling mouth of pipe and exhaust pipe mouth are arranged in water
On the inside of the end edge of capsule one end, the water filling mouth of pipe is under, exhaust pipe mouth is upper；
Above-mentioned water injection pipe mouth is internally provided with a check valve, and exhaust pipe mouth band internal thread is blocked using plug；
The length of above-mentioned water pocket is equal to the air line distance between the lane side of upper curtate and the lane side of lower curtate, the width of water pocket
It is equal with the height of water pocket, equal to the distance between top plate and bottom plate；
The height of water pocket is determined as follows：When water pocket is in swelling state full of water, water pocket is in what is lain low
Elliptic cylindrical shape, now, the oval minor axis length of water pocket longitudinal cross-section are the height of water pocket；
Construction procedure is as follows：
The first step, along advance of the face direction, on the bottom plate in the empty top zone domain in the goaf at working face rear, every 3
Rice one water pocket of laying；Wherein, first water pocket is laid in front of the original position of filling at 3 meters；
When water pocket is laid, the two ends of water pocket are kept to be in contact respectively with the lane side of upper curtate and the lane side of lower curtate, water pocket
The water filling mouth of pipe and an exhaust pipe mouth where that one end be placed on the high order end of bottom plate, and be vented the water filling mouth of pipe and one
The mouth of pipe is towards working face side；
After water pocket laying is in place, in water pocket on the bottom plate of working face side, along the longitudinal direction of water pocket, every 0.5
Rice makes a call to a timber against water pocket；
Then, the plug of water pocket exhaust pipe mouth is backed out, water injection pipe is inserted to the water filling mouth of pipe of water pocket, injects few into water pocket
The water of amount, so that at the same time water pocket lower expansion, fills in polystyrene foam to being contacted with timber between timber and water pocket
Plate；, using timber to after water filling water pocket carry out it is spacing, using XPS protection water pocket avoid because directly being contacted with hard thing
Punctured or wear damage caused by possible；
Second step, keeps the exhaust pipe mouth of water pocket to open, the infusion gun being connected with outlet pipe is inserted to the water injection pipe of water pocket
Mouthful, open the Water filling valve in front of infusion gun, the water filling into water pocket；
When water injection rate reaches more than half of water pocket capacity in water pocket, by the Grouting Pipe being connected with underground grouting pipeline from
Water pocket is stretched to away from the goaf to be filled of working face side for passing through and being put into filling pipe insertion through hole on water pocket；
3rd step, opens the valve in the Grouting Pipe being connected with underground grouting pipeline, to water pocket away from working face side
Slip casting in region；
According to slip casting progress, between the outlet pipe of the in good time above-mentioned infusion gun of unlatching/closing and shaft sump on connecting line
Valve, with alternately slip casting and water pocket water flood operations, can effectively be hindered so that the height of the water pocket after water-filling is remained at
Keep off grouting serous fluid, it is to avoid grouting serous fluid highly rises, more than water pocket highly, and then side of the overflow to water pocket towards working face；
In the process, when above-mentioned exhaust pipe mouth overflow, the Water filling valve closed in front of infusion gun, and continue to keep note
Slurry operation, until water pocket is completed away from working face side goaf to be filled by paste body filling；
Then, the Water filling valve in front of infusion gun is opened, continues the water filling into water pocket, until close with top plate at the top of water pocket
When fitting and the state compressed is presented, close Water filling valve, extract infusion gun out, terminate water pocket water flood operations；
4th step, according to the propulsion progress of working face, moves forward to appropriate position by filling support in good time, repeats above-mentioned the
One step is to the 3rd step, until whole stope filling is fully completed.
Above-mentioned water pocket material is abrasive rubber；The rated operating pressure of water pocket is more than 1.5MPa.
The thickness for the obturation that above-mentioned paste body filling is formed, is to determine water-filling water according to specific underground water seepage discharge
After the volume of capsule, after the cumulative volume of paste body filling needed for calculating, the obturation and water-filling water formed according to each paste body filling
Interval consistent principle as far as possible between capsule, it is determined that and according to the reality of underground water seepage discharge, adjustment in good time is drawn.
Above-mentioned girdle goaf paste body filling construction method, the water used in water pocket water filling preferentially directly oozes out from underground
Water is extracted；
Not enough water, by usually from underground extract, be delivered to the water storehouse on ground in water storage feed.
Claims (4)
1. a kind of girdle goaf paste body filling construction method, it is characterised in that after underground water seepage is contained with water pocket, return
Fill out in goaf, goaf segment space is occupied using water-filling water pocket, the mode for correspondingly reducing paste body filling volume is adopted
Filling mine-out area, water-filling water pocket is finally cured in the obturation in whole goaf, as a composition in obturation entirety
Part；
The water pocket is rubber bag tank, in partially flat elongate in shape；Along the longitudinal direction of water pocket, every certain on the inside of water pocket top edge
Distance sets one to insert through hole for filling pipe；When water pocket is in swelling state full of water, the latus rectum of above-mentioned through hole is met
Filling steel pipe inserts and forms sealed requirement；
The water pocket carries a water filling mouth of pipe and an exhaust pipe mouth, and the water filling mouth of pipe and exhaust pipe mouth are arranged in water pocket one end
On the inside of end edge, the water filling mouth of pipe is under, exhaust pipe mouth is upper；
Above-mentioned water injection pipe mouth is internally provided with a check valve, and exhaust pipe mouth band internal thread is blocked using plug；
The length of above-mentioned water pocket is equal to the air line distance between the lane side of upper curtate and the lane side of lower curtate, the width and water of water pocket
The height of capsule is equal, equal to the distance between top plate and bottom plate；
The height of water pocket is determined as follows：When water pocket is in swelling state full of water, water pocket is in the ellipse lain low
Column, now, the oval minor axis length of water pocket longitudinal cross-section are the height of water pocket；
Construction procedure is as follows：
The first step, along advance of the face direction, on the bottom plate in the empty top zone domain in the goaf at working face rear, every 3 meters of pavings
If a water pocket；Wherein, first water pocket is laid in front of the original position of filling at 3 meters；
When water pocket is laid, the two ends of water pocket are kept to be in contact respectively with the lane side of upper curtate and the lane side of lower curtate, the note of water pocket
That one end where hose nozzle and exhaust pipe mouth is placed on the high order end of bottom plate, and makes the water filling mouth of pipe and an exhaust pipe mouth direction
Working face side；
It is tight every 0.5 meter along the longitudinal direction of water pocket in water pocket on the bottom plate of working face side after water pocket laying is in place
A timber is made a call to by water pocket；
Then, the plug of water pocket exhaust pipe mouth is backed out, water injection pipe is inserted to the water filling mouth of pipe of water pocket, is injected on a small quantity into water pocket
Water, so that at the same time water pocket lower expansion, fills in polystyrene foam plate to being contacted with timber between timber and water pocket,
Using timber to after water filling water pocket carry out it is spacing, using XPS protection water pocket avoid because directly contacting possibility with hard thing
It is caused to puncture or wear damage；
Second step, keeps the exhaust pipe mouth of water pocket to open, the infusion gun being connected with outlet pipe is inserted to the water filling mouth of pipe of water pocket, opened
The Water filling valve in front of infusion gun is opened, the water filling into water pocket；
When water injection rate reaches more than half of water pocket capacity in water pocket, by the Grouting Pipe being connected with underground grouting pipeline from water pocket
Pass through and be put into the upper insertion through hole for filling pipe and stretch to water pocket away from the goaf to be filled of working face side；
3rd step, opens the valve in the Grouting Pipe being connected with underground grouting pipeline, to region of the water pocket away from working face side
Interior slip casting；
According to slip casting progress, the valve between the outlet pipe of the in good time above-mentioned infusion gun of unlatching/closing and shaft sump on connecting line
Door, with alternately slip casting and water pocket water flood operations, so that the height of the water pocket after water-filling, which is remained at, can effectively stop note
Starch slurries, it is to avoid grouting serous fluid highly rises, more than water pocket highly, and then side of the overflow to water pocket towards working face；
In the process, when above-mentioned exhaust pipe mouth overflow, the Water filling valve closed in front of infusion gun, and continue to keep slip casting behaviour
Make, until water pocket is completed away from working face side goaf to be filled by paste body filling；
Then, the Water filling valve in front of infusion gun is opened, continues the water filling into water pocket, until being brought into close contact at the top of water pocket with top plate
And when the state compressed is presented, closes Water filling valve, extract infusion gun out, terminate water pocket water flood operations；
4th step, according to the propulsion progress of working face, moves forward to appropriate position by filling support in good time, repeats the above-mentioned first step
To the 3rd step, until whole stope filling is fully completed.
2. girdle goaf paste body filling construction method according to claim 1, it is characterised in that the water pocket material
For abrasive rubber；The rated operating pressure of water pocket is more than 1.5MPa.
3. girdle goaf paste body filling construction method according to claim 1 or 2, it is characterised in that the lotion
The thickness of the formed obturation of filling, is to be determined according to specific underground water seepage discharge after the volume of water-filling water pocket, is calculated
After the cumulative volume of paste body filling needed for going out, the interval between the obturation and water-filling water pocket that are formed according to each paste body filling to the greatest extent may be used
Can consistent principle, it is determined that and according to the reality of underground water seepage discharge, adjustment in good time is drawn.
4. girdle goaf paste body filling construction method according to claim 1, it is characterised in that used in water pocket water filling
Water preferential directly extracted from underground water seepage；Not enough water, in usually extracting from underground, being delivered to the water storehouse on ground
Water storage is fed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319400.2A CN106988780B (en) | 2017-05-09 | 2017-05-09 | A kind of girdle goaf paste body filling construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319400.2A CN106988780B (en) | 2017-05-09 | 2017-05-09 | A kind of girdle goaf paste body filling construction method |
Publications (2)
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| CN110566269A (en) * | 2019-08-19 | 2019-12-13 | 西北矿冶研究院 | Truss type filling method for underground goaf |
| CN110630262A (en) * | 2019-09-25 | 2019-12-31 | 任启兰 | Mine roadway working face collapse prevention method |
| CN117145477A (en) * | 2023-10-30 | 2023-12-01 | 华能煤炭技术研究有限公司 | Coal mining method with uniform subsidence of earth surface |
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