CN106870001A - Tunnel is layered pocket type self-support filling counterfort construction method - Google Patents
Tunnel is layered pocket type self-support filling counterfort construction method Download PDFInfo
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- CN106870001A CN106870001A CN201710093444.8A CN201710093444A CN106870001A CN 106870001 A CN106870001 A CN 106870001A CN 201710093444 A CN201710093444 A CN 201710093444A CN 106870001 A CN106870001 A CN 106870001A
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- 239000002002 slurry Substances 0.000 claims abstract description 79
- 238000013461 design Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000008093 supporting effect Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 9
- 239000011449 brick Substances 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 208000037805 labour Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
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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)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel layering pocket type self-support filling counterfort construction method, constructed using pocket type filling method, taken ladder heap dam formula layerwise construction technique, barricade is supported oneself without enclosing supporting, comprised the following steps：A, actual measurement barricade position section；B, according to wall profiles shape divide be layered, and design each layered arrangement filling bag profile and length and width size；C, the layering according to division, will successively be laid by the filling of design customization bag；D, by dehydrating tube it is corresponding with filling pipe be fixed on filling bag on；E, using filling slurry from the bottom to top successively to each filling bag fill, until topmost filling bag fill and connect top, formation filling counterfort；F, barricade maintenance reach design strength.With security it is good, construct small efficiency high, labour intensity, good sealing effect and low cost the features such as.Barricade, enclosing wall and divider wall suitable for constructing any shape and big cross section.
Description
Technical field
The present invention relates to mining technical field, especially, it is related to a kind of mine worked-out section to fill preceding dead zone outlet envelope
Stifled large section roadway layering pocket type self-support filling counterfort construction method.
Background technology
The method of mining by the way of filling is used by increasing mine, and extensive mine generally uses larger stope structure parameter,
Such as stage open stope afterwards filling, domestic mine level interval has reached more than 120m；Furthermore, for improve production efficiency, underground
Exploited using the mining equipment of maximization more than mine, underground mines scraper bucket capacity has reached 10m3More than, in order to reach
The operation of plant equipment and safety requirements, drift section requirement are very big, and this all brings great difficulty to dead zone closure.
Barricade in filling in mine mining codes is constructed, for the closure of the preceding dead zone outlet of goaf filling.Filling mine-out area is close
Wall is closed as crucial production link, filling area is isolated with workspace, the problems such as to prevent Filling mine-out area slurry spillage, running pulp,
The security reliability of Filling mine-out area fire dam is extremely important safety guarantee to underground work personnel, equipment and normal production.
The form of constructing of filling counterfort mainly has：Brick structure barricade, timber structure barricade, concrete guard wall, steel construction etc..Its
In, post and panel structure barricade applies in general to small section tunnel, and concrete and steel construction barricade can apply to large section roadway gear
Wall is constructed.
Existing filling counterfort has the disadvantages that：
1st, the form of constructing is mostly tabular, the antidumping poor performance of barricade；Because barricade is along the length of tunnel axis direction
General shorter, anti-shear ability is poor；Lamellar filling counterfort anti-bending strength is poor, it is impossible to meet large section roadway demand for security.
2nd, filling slurry dewatering speed is slow, and setting time is long, and filling slurry is in a liquid state state for a long time in stope, is ore deposit
Mountain downhole production brings major safety risks.
3rd, long construction period.Cause stope integrated production capacity low, on the other hand, dead zone can not fill in time, cause sky
Area collapse emit, Pillar scaling damage, influence resource recovery security and the rate of extraction.
4th, transport of materials amount is big.It is many that barricade constructs quantity, position dispersion, and barricade intensity requirement is high, therefore barricade constructs institute
Need quantity of material big.
5th, labour intensity is big.It is narrow and small that barricade constructs position working space, it is difficult with do mechanization operation.Such as concrete guard wall
Construct, it is artificial to be entered in mould spade using instruments such as spades more using hand mixed concrete, exceed when barricade is high
During certain limit, will also be by manually having bad luck.
6th, filling counterfort supporting and retaining system high material consumption, the high supporting intensity of big cross section barricade requirement, need to consume substantial amounts of wood
Material and steel, due to the corrosion impact by filling slurry and underground adverse circumstances, recovery difficult greatly, tends not to reclaim,
Or reclaim after utilizability it is poor, cause resource serious waste.
7th, top obturation effect is connect poor.The seal of barricade is improved, existing construction method is usually that people is reserved in the middle part of barricade
Hole, after the completion of barricade is constructed, workman enters barricade dead zone side by manhole, and barricade surrounding is filled using gunite concrete.The skill
The complex process of art construction, construction is carried out in dead zone side, operating environment extreme difference；And gunite concrete maintenance is poor, is connect with scar
Imprecision is touched, sealing effect cannot ensure, therefore can not effective mortar leakage prevention.
The content of the invention
The invention provides a kind of tunnel layering pocket type self-support filling counterfort construction method, to solve existing filling counterfort structure
Building method, complicated construction technique, the technical problem that the construction period is long, security is poor and cost is high.
The present invention provides a kind of tunnel layering pocket type self-support filling counterfort construction method, and structure is carried out using pocket type filling method
Build, take ladder heap dam formula layerwise construction technique, barricade is supported oneself without enclosing supporting, comprised the following steps：A, actual measurement barricade
Position section；B, according to wall profiles shape divide be layered, and design each layered arrangement filling bag profile and length and width
Size；C, the layering according to division, will successively be laid by the filling of design customization bag；D, by dehydrating tube it is corresponding with filling pipe install
It is fixed on filling bag；E, each filling bag is filled successively from the bottom to top using filling slurry, until topmost fills
Fill out bag to fill and connect top, form filling counterfort；F, barricade maintenance reach design strength.
Further, the filling bag design of step b is specially：Filling bag profile is vertical according to the crosssection shape design in tunnel
Cube, cuboid or other polygon rib bodies being adapted with cross-section shape of roadway；Fill the length of bag：According to drift section
Highly determine, drift section height is bigger, filling bag length is bigger, the length for filling bag is 1m~10m；Fill the width of bag：
The section Breadth Maximum of the barricade construction location according to tunnel determines, filling bag width more than section Breadth Maximum 10cm~
20cm；Filling bag is highly 0.2m~3m.
Further, dehydrating tube cuff is left at filling bag two ends, and the diameter of dehydrating tube cuff determines according to dehydration pipe diameter,
A diameter of 50mm~the 150mm of dehydrating tube cuff；Leave the slurry charging cuff for filling slurry charging, slurry in filling bag one end
The diameter for feeding cuff determines that slurry feeds a diameter of 50mm~150mm of cuff according to filling pipe diameter.
Further, according to barricade intensity requirement, one or more are left in the middle part of filling bag for assembling barricade reinforcement
The pillar cuff of pillar.
Further, the material of filling bag is obtained using the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.
Further, the layered mode of step b is specially：Filling bag according to design, structure is layered using ladder heap dam formula
Make technique and divide layering along the profile height direction of barricade construction location；Lower floor's barricade layering length is layered edge more than upper strata barricade
The length of tunnel axial direction, the filling bag length of the filling bag length more than upper strata of corresponding lower floor is in rank between levels
Ladder type design partition is layered, and upper and lower fault is away from being 0.1m~1m.
Further, the filling baggy fabric laying of step c is specially：According to the layering for dividing, the filling bag of design customization will be pressed
According to from bottom to up with first grow after short order be laid on barricade construction location.
Further, the installation of dehydrating tube and filling pipe is specially in step d：Dehydrating tube is run through into relative cloth on filling bag
The dehydrating tube cuff put simultaneously is fixed with filling bag, is fixed by filling pipe insertion slurry charging cuff and with filling bag.
Further, step e is specially：Poured into filling bag by filling pipe using filling slurry；First to most lower point
The filling bag of layer is filled, then filling upwards successively；In the filling bag filling slurry of most higher slice, in filling slurry
Addition swelling agent, top is connect by the expansion effect of filling slurry completely with realize filling counterfort.
Further, accelerator is added in filling slurry to shorten the time of filling slurry condensation.
The invention has the advantages that：
Tunnel of the present invention is layered pocket type self-support filling counterfort construction method, with security it is good, to construct efficiency high, work strong
Degree is small, and sealing effect is good, the features such as low cost.
Improve and construct efficiency, need to be only laid in tunnel to be constructed or empty filling bag according to design when barricade is constructed
Area exit, you can start filling, without installing other supporting and retaining system equipment, reduce the complexity of Retaining wall.
The filling slurry prepared using filling system, directly fills to form barricade using pipeline, saves a dead lift
A large amount of manual labors such as material.Filling system preparative capacibility is big, is conducive to shortening to construct the time.
Barricade security performance is improve, using ladder heap dam formula layerwise construction technique, barricade need not set up other supportings, together
When can strengthen the anti-overturning energy of barricade, disclosure satisfy that large section roadway barricade constructs requirement.
Stope filling slurry dewatering speed is improve, is easy to observe the filling situation of stope filling dead zone by dehydrating tube,
Filling slurry can be conducive to grasping stope filling feelings in time before crossing barricade by the height of the situation of dehydrating tube observation charge level
Condition, prevents security incident.By setting dehydrating tube, be conducive to improving the dewatering speed of stope.
Cost is reduced, the cost of filling slurry is generally significantly less than concrete, brick etc. and builds cost by laying bricks or stones.Another aspect barricade fills
Fill out be whole Filling mine-out area a part, be conducive to sharing for cost.Filling bag is processed using cheap membrane material, low cost.
Sealing effect is good, strong adaptability, and filling bag is flexible membrane material, under filling slurry Action of Gravity Field, can be tight
Help wall to fit with tunnel, can adapt to any section configuration.When back position fills, using expanding material or using filling
Main pipeline pressure, can realize connecing top comprehensively.
Barricade, enclosing wall and divider wall suitable for constructing any shape and big cross section.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the tunnel layering pocket type self-support filling counterfort construction method of the preferred embodiment of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the schematic diagram of the tunnel layering pocket type filling counterfort construction method of the preferred embodiment of the present invention plus pillar；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the structural representation of the filling bag without dehydrating tube cuff of the preferred embodiment of the present invention；
Fig. 6 is the structural representation of the filling bag with dehydrating tube cuff of the preferred embodiment of the present invention；
Fig. 7 is the structural representation of the filling bag with dehydrating tube and pillar cuff of the preferred embodiment of the present invention.
Marginal data：
1st, bag is filled；2nd, dehydrating tube；3rd, filling pipe；4th, dehydrating tube cuff；5th, slurry charging cuff；6th, barricade strengthens branch
Post；7th, pillar cuff；8th, roadway floor；9th, back；10th, tunnel side wall；11st, it is dehydrated cloth；12nd, stope filling dehydrating tube.
Specific embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the schematic diagram of the tunnel layering pocket type self-support filling counterfort construction method of the preferred embodiment of the present invention；Fig. 2 is
The A-A sectional views of Fig. 1；Fig. 3 is the tunnel layering pocket type filling counterfort construction method of the preferred embodiment of the present invention plus pillar
Schematic diagram；Fig. 4 is the A-A sectional views of Fig. 3；Fig. 5 is the knot of the filling bag without dehydrating tube cuff of the preferred embodiment of the present invention
Structure schematic diagram；Fig. 6 is the structural representation of the filling bag with dehydrating tube cuff of the preferred embodiment of the present invention；Fig. 7 is the present invention
The structural representation of the filling bag with dehydrating tube and pillar cuff of preferred embodiment.
As depicted in figs. 1 and 2, the tunnel layering pocket type self-support filling counterfort construction method of the present embodiment, is filled using pocket type
The method of filling out is constructed, and takes ladder heap dam formula layerwise construction technique, and barricade is supported oneself without enclosing supporting, comprised the following steps：
A, actual measurement barricade position section；B, divided according to wall profiles shape and be layered, and design each layered arrangement filling bag 1 it is outer
Shape and length and width size；C, the layering according to division, will successively be laid by the filling of design customization bag 1；D, by dehydrating tube 2 and fill
The correspondence of pipe 3 is filled out to be fixed on filling bag 1；E, using filling slurry from the bottom to top successively to each filling bag 1 fill,
Until the filling bag 1 of topmost is filled and connects top, filling counterfort is formed；F, barricade maintenance reach design strength.Tunnel of the present invention
Layering pocket type self-support filling counterfort construction method, with security it is good, construct that efficiency high, labour intensity are small, sealing effect is good, into
This low feature.Improve and construct efficiency, filling bag 1 need to be only laid in tunnel to be constructed according to design when barricade is constructed
Or dead zone exit, you can start filling, without installing other supporting and retaining system equipment, reduce the complexity of Retaining wall.Using
Filling slurry prepared by filling system, directly fills to form barricade using pipeline, saves a large amount of bodies such as a dead lift material
Power is worked.Filling system preparative capacibility is big, is conducive to shortening to construct the time.Barricade security performance is improve, using ladder heap dam
Formula layerwise construction technique, barricade need not set up other supportings, while the anti-overturning energy of barricade can be strengthened, disclosure satisfy that big disconnected
Face tunnel barricade constructs requirement.Stope filling slurry dewatering speed is improve, observation stope filling dead zone is easy to by dehydrating tube 2
Filling situation, filling slurry crossed before barricade the height that charge level can be observed by the situation of dehydrating tube 2, be conducive to grasp in time
Stope filling situation, prevents security incident.By setting dehydrating tube 2, be conducive to improving the dewatering speed of stope.Reduce
Cost, the cost of filling slurry is generally significantly less than concrete, brick etc. and builds cost by laying bricks or stones.The filling of another aspect barricade is that whole dead zone is filled
The part filled out, is conducive to sharing for cost.Filling bag 1 is processed using cheap membrane material, low cost.Sealing effect is good, adapts to
Property it is strong, filling bag 1 is flexible membrane material, under filling slurry Action of Gravity Field, can be tight fitted with tunnel side wall 10, Neng Goushi
Answer any section configuration.When the position of back 9 fills, using expanding material or using main pipeline pressure is filled, can realize
Connect top comprehensively.Barricade, enclosing wall and divider wall suitable for constructing any shape and big cross section.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in the present embodiment, the design of filling bag 1 of step b is specific
For：The filling profile of bag 1 is cube according to the crosssection shape design in tunnel, cuboid or other be adapted with cross-section shape of roadway
Polygon rib body.According to the contour structures of the corresponding filling bag 1 of cross-section shape of roadway design, and make the height of filling bag 1
The size of direction and width is more than drift section size, and filling bag 1 is caused in the filling slurry stowing operation of filling bag 1
Comprehensive laminating is carried out with adjacent filling bag 1, roadway floor 8, back 9 and tunnel side wall 10 respectively, to avoid sky
The problems such as area filling slurry spillage, running pulp.Other polygon rib bodies being adapted with cross-section shape of roadway, can for fang platform body,
Polygon stage body, trapezoidal stage body, cone etc..Fill the length of bag 1：Height according to drift section determines that drift section is high
Degree is bigger, and the filling length of bag 1 is bigger.The length for filling bag 1 is 1m~10m.Fill the width of bag 1：Barricade structure according to tunnel
The section Breadth Maximum for making position determines.Filling bag 1 width is more than section Breadth Maximum 10cm~20cm.Filling the height of bag 1 is
0.2m~3m.Making, transport and the laying of single filling bag 1 can be facilitated, the workload of scene laying can be reduced, while
Meet and be closely contacted with each other affixed structural stability after ground paste filling.Only bag need to will be filled when barricade is constructed according to design
It is laid in tunnel to be constructed or dead zone exit, you can start filling, without installing other supporting and retaining system equipment, reduce barricade and apply
The complexity of work.The filling slurry prepared using filling system, directly fills to form barricade using pipeline, saves artificial
A large amount of manual labors such as materials hauling.Filling system preparative capacibility is big, is conducive to shortening to construct the time.Filling slurry can be added
Accelerator shortens setting time.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in the present embodiment, dehydrating tube sleeve is left at filling bag 1 two ends
Mouth 4.The diameter of dehydrating tube cuff 4 determines according to the diameter of dehydrating tube 2.A diameter of 50mm~the 150mm of dehydrating tube cuff 4.Can fit
Should be assembled in the dehydrating tube 2 of different tube diameters, can select the dehydrating tube of suitable caliber carries out slurry to stope Filling mine-out area slurry
Dehydration；The convenient observation to stope Filling mine-out area slurry progress simultaneously.Leave the material for filling slurry charging in filling bag 1 one end
Slurry charging cuff 5.The diameter of slurry charging cuff 5 determines according to the diameter of filling pipe 3.The a diameter of 50mm of slurry charging cuff 5~
150mm.The filling pipe 3 for being adapted to different tube diameters is assembled, while can be according to the size selection different tube diameters of filling bag 1
Filling pipe 3, to accelerate speed of application.Stope filling slurry dewatering speed is improved, is easy to observe filling situation.The cloth on filling bag
Dehydrating tube cuff 4 is put, dehydrating tube 2, directly through dehydrating tube cuff 4, can be conducive to improving the dewatering speed of stope.Casting resin
Can be conducive to grasping stope filling situation in time by the height of the situation of dehydrating tube observation charge level before starching barricade, prevent
Generation security incident.
As shown in Fig. 3, Fig. 4 and Fig. 7, in the present embodiment, according to barricade intensity requirement, one can be left at the middle part of filling bag 1
Individual or multiple pillar cuffs 7 for strengthening pillar 6 for assembling barricade.
In the present embodiment, the material for filling bag 1 is obtained using the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.Fill
Fill out bag to be processed using the membrane material of the impermeable aggregate of drainage, be conducive to accelerating the dewatering speed of slurry, shorten slurry condensation setting rate.
Filling bag is flexible membrane material, and under filling slurry Action of Gravity Field, can be tight fit with tunnel side wall can adapt to any breaking
Face shape.When back position fills, using expanding material or using main pipeline pressure is filled, can realize connecing top comprehensively.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the layered mode of step b is specially：According to filling for design
Bag 1 is filled out, layering is divided along the profile height direction of barricade construction location using ladder heap dam formula layered structure technique.Lower floor's barricade
Layering length is layered along the length of tunnel axial direction more than upper strata barricade.Filling 1 length of bag of corresponding lower floor is more than upper strata
Filling bag 1 length.In stepped design partition layering between levels.Upper and lower fault is away from being 0.1m~1m.Using ladder heap
Dam formula layerwise construction technique, barricade need not set up other supportings, while the anti-overturning energy of barricade can be strengthened, disclosure satisfy that big
Section tunnel barricade constructs requirement.Barricade security performance can be improved.Using ladder heap dam formula layerwise construction technique, barricade need not
Other supportings are set up, while the anti-overturning energy of barricade can be strengthened, disclosure satisfy that large section roadway barricade constructs requirement.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the filling baggy fabric laying of step c is specially：According to what is divided
Layering.By by the filling bag 1 of design customization according to from bottom to up with first grow after short order be laid on barricade construction location.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the installation of dehydrating tube 2 and filling pipe 3 is specific in step d
For：Fixed by the dehydrating tube cuff 4 positioned opposite on filling bag 1 of dehydrating tube 2 and with filling bag 1.Filling pipe 3 is inserted into material
Slurry charging cuff 5 is simultaneously fixed with filling bag 1.Stope filling slurry dewatering speed is improved, is easy to observe filling situation.In filling bag
Upper arrangement dehydrating tube cuff 4, dehydrating tube 2, directly through dehydrating tube cuff 4, can be conducive to improving the dewatering speed of stope.Fill
Extender paste can be conducive to grasping stope filling situation in time before crossing barricade by the height of the situation of dehydrating tube observation charge level,
Prevent security incident.Alternatively, dehydrating tube 2 is provided with dehydration cloth 11 towards the one end in stope goaf ground paste filling region,
Flowed into dehydrating tube 2 with the filling slurry for preventing stope goaf ground paste filling region.Alternatively, stope goaf ground paste filling
When region carries out ground paste filling, stope filling dehydrating tube 12 is turned on dehydrating tube 2, the filling slurry in goaf borrows filling
The dehydrating tube 2 of bag 1 carries out slurry dewatering.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, step e is specially：Filling pipe 3 is passed through using filling slurry
Pour into filling bag 1.Filling bag 1 first to most lower leaf is filled, then filling upwards successively.In filling for most higher slice
When filling out 1 filling slurry of bag, swelling agent is added in filling slurry, by the expansion effect of filling slurry realizing filling counterfort
Top is connect completely.
In the present embodiment, accelerator is added in filling slurry to shorten the time of filling slurry condensation.
During implementation, there is provided a kind of tunnel is layered pocket type self-support filling counterfort construction method, specific implementation step is as follows：
(1) barricade position roadway sectional drawing or dead zone outlet shapes to be filled are surveyed
(2) filling bag design processing
Filling bag profile is cube or other rib bodies being adapted with drift section.
Filling bag length：Height according to drift section determines that drift section height is bigger, and filling bag length is bigger, is
1m~10m；Filling bag width：Determined according to section Breadth Maximum in position to be constructed, filling bag width is equal to drift section width
Plus 10cm~20cm；Filling bag is highly：0.2m~3m.
Filling bag two ends stay dehydrating tube cuff, cuff diameter to be determined according to dehydration pipe diameter, are 50mm~150mm；Filling
Bag one end stays filling slurry to feed cuff, and cuff diameter determines according to filling pipe diameter, is 50mm~150mm.
According to barricade intensity requirement, pillar can be stayed to strengthen cuff in the middle part of filling bag.
Filling bag material is the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.
(3) fill
Ladder heap dam formula layerwise construction technique is taken, constructing position profile height direction along barricade divides layering, lower floor's gear
Wall is more than the filling bag length on upper strata, levels along the length of tunnel axis direction more than the filling bag length of upper strata, i.e. lower floor
Between in step type, upper and lower fault is away from being 0.1m~1m.
During construction, the filling bag of processing will be customized, according to from bottom to up, short order is laid on tunnel to be filled after first growing
It is interior.Dehydrated tube through the corresponding dehydration cuff of design, filling pipeline insertion filling charging cuff are tied up using iron wire.Fill
Fill out after being ready to complete, the filling bag to most lower leaf is filled first, then filling upwards successively.Poured into using filling slurry
Filling bag, in order to shorten filling slurry setting time, addition accelerator in filling slurry.Topmost fills near the filling bag of top board
When filling out, swelling agent is added, top is connect completely with realize filling counterfort.
(4) filling counterfort maintenance
Filling counterfort maintenance reaches design strength, you can start Filling mine-out area operation.
Tunnel of the present invention is layered pocket type self-support filling counterfort construction method：(1) improve and construct efficiency.Only needed when barricade is constructed
According to design, filling bag is laid in tunnel to be constructed or dead zone exit, you can start filling, reduce Retaining wall
Complexity.(2) filling slurry prepared using filling system, directly fills to form barricade using pipeline, saves artificial
A large amount of manual labors such as materials hauling.Filling system preparative capacibility is big, is conducive to shortening to construct the time.Filling slurry can be added
Accelerator shortens setting time.After filling counterfort filling is constructed, can immediately carry out the packing job of dead zone.(3) barricade is improved
Security performance.Using ladder heap dam formula layerwise construction technique, barricade need not set up other supportings, while the anti-of barricade can be strengthened
Topple performance, disclosure satisfy that large section roadway barricade constructs requirement.(4) stope filling slurry dewatering speed is improved, is easy to observation
Filling situation.Dehydrating tube cuff is arranged on filling bag, dehydrating tube, directly through cuff, can be conducive to improving the dehydration of stope
Speed.Filling slurry crosses before barricade the height that charge level can be observed by the situation of dehydrating tube, is conducive to grasping stope in time and fills
Situation is filled out, prevents security incident.(5) filling bag is processed using the membrane material of the impermeable aggregate of drainage, is conducive to accelerating slurry
Dewatering speed, shortens slurry condensation setting rate.(6) reduces cost.The cost of filling slurry is generally significantly less than concrete, brick etc.
Build cost by laying bricks or stones；The filling of another aspect barricade is a part for whole Filling mine-out area, is conducive to sharing for cost.(7) sealing effect
It is good, strong adaptability.Filling bag is flexible membrane material, under filling slurry Action of Gravity Field, can be tight fitted with tunnel side wall, energy
Enough adapt to any section configuration.When back position fills, main pipeline pressure, Neng Goushi are filled using expanding material or utilization
Top is now connect comprehensively.(8) in sum, the method have that security is good, construct efficiency high, labour intensity it is small, sealing effect is good, into
This low feature.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of tunnel layering pocket type self-support filling counterfort construction method, is constructed using pocket type filling method, takes ladder heap
Dam formula layerwise construction technique, barricade is supported oneself without enclosing supporting, it is characterised in that comprised the following steps：
A, actual measurement barricade position section；
B, according to wall profiles shape divide be layered, and design each layered arrangement filling bag (1) profile and length and width chi
It is very little；
C, the layering according to division, will successively be laid by the filling of design customization bag (1)；
D, dehydrating tube (2) and filling pipe (3) correspondence are fixed in filling bag (1)；
E, using filling slurry from the bottom to top successively to each filling bag (1) fill, until topmost filling bag (1) fill
Top is filled out and connect, filling counterfort is formed；
F, barricade maintenance reach design strength.
2. tunnel according to claim 1 is layered pocket type self-support filling counterfort construction method, it is characterised in that
Filling bag (1) design of the step b is specially：
Filling bag (1) profile is cube, cuboid or other and cross-section shape of roadway phase according to the crosssection shape design in tunnel
The polygon rib body of adaptation；
The length of filling bag (1)：Height according to drift section determines that drift section height is bigger, and filling bag (1) length is got over
Greatly, the length of filling bag (1) is 1m~10m；
The width of filling bag (1)：The section Breadth Maximum of the barricade construction location according to tunnel determines that filling bag (1) width is big
In section Breadth Maximum 10cm~20cm；
Filling bag (1) is highly 0.2m~3m.
3. tunnel according to claim 2 is layered pocket type self-support filling counterfort construction method, it is characterised in that
Dehydrating tube cuff (4) is left at filling bag (1) two ends,
The diameter of dehydrating tube cuff (4) according to dehydrating tube (2) diameter determine,
Dehydrating tube cuff (4) a diameter of 50mm~150mm；
Slurry charging cuff (5) for filling slurry charging is left in filling bag (1) one end,
Slurry feeds the diameter of cuff (5) according to the determination of filling pipe (3) diameter,
Slurry feeds cuff (5) a diameter of 50mm~150mm.
4. tunnel according to claim 3 is layered pocket type self-support filling counterfort construction method, it is characterised in that
According to barricade intensity requirement, one or more branch for strengthening pillar (6) for assembling barricade are left at filling bag (1) middle part
Post cuff (7).
5. tunnel according to claim 2 is layered pocket type self-support filling counterfort construction method, it is characterised in that
The material of filling bag (1) is obtained using the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.
6. tunnel according to any one of claim 1 to 5 is layered pocket type self-support filling counterfort construction method, and its feature exists
In,
The layered mode of the step b is specially：
According to design filling bag (1), using ladder heap dam formula layered structure technique along barricade construction location profile height side
It is layered to dividing；
Lower floor's barricade layering length is layered along the length of tunnel axial direction, the filling bag of corresponding lower floor more than upper strata barricade
(1) length is more than filling bag (1) length on upper strata,
In stepped design partition layering between levels,
Upper and lower fault is away from being 0.1m~1m.
7. tunnel according to any one of claim 1 to 5 is layered pocket type self-support filling counterfort construction method, and its feature exists
In,
Filling baggy fabric (1) laying of the step c is specially：
According to the layering for dividing, by by the filling of design customization bag (1) according to from bottom to up with it is first long after short order be laid on
Barricade construction location.
8. tunnel according to any one of claim 1 to 5 is layered pocket type self-support filling counterfort construction method, and its feature exists
In,
The installation of dehydrating tube (2) and filling pipe (3) is specially in the step d：
Fixed by dehydrating tube (2) dehydrating tube cuff (4) positioned opposite in filling bag (1) and with filling bag (1),
Filling pipe (3) insertion slurry is fed into cuff (5) and is fixed with filling bag (1).
9. tunnel according to any one of claim 1 to 5 is layered pocket type self-support filling counterfort construction method, and its feature exists
In,
Step e is specially：
Poured into filling bag (1) by filling pipe (3) using filling slurry；
Filling bag (1) first to most lower leaf is filled,
Then filling upwards successively；
In filling bag (1) filling slurry of most higher slice, swelling agent is added in filling slurry, by the expansion of filling slurry
Effect connects top completely with realize filling counterfort.
10. tunnel according to claim 9 is layered pocket type self-support filling counterfort construction method, it is characterised in that
Accelerator is added in filling slurry to shorten the time of filling slurry condensation.
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| CN112696232A (en) * | 2020-12-29 | 2021-04-23 | 中国矿业大学 | Gob-side entry retaining reinforced filling body structure and filling method thereof |
| CN114961848A (en) * | 2022-07-15 | 2022-08-30 | 福州大学 | Method for constructing roadways in part in tailing cemented filling process |
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