CN106870001B - 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 PDF

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Publication number
CN106870001B
CN106870001B CN201710093444.8A CN201710093444A CN106870001B CN 106870001 B CN106870001 B CN 106870001B CN 201710093444 A CN201710093444 A CN 201710093444A CN 106870001 B CN106870001 B CN 106870001B
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China
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filling
bag
barricade
layered
slurry
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CN201710093444.8A
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Chinese (zh)
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CN106870001A (en
Inventor
赖伟
肖木恩
刘婉莹
尹贤刚
张友轩
尚振华
苏伟
何远富
杨宁
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长沙矿山研究院有限责任公司
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Publication of CN106870001A publication Critical patent/CN106870001A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/103Dams, e.g. for ventilation

Abstract

The invention discloses a kind of tunnels to be layered pocket type self-support filling counterfort construction method, is constructed using pocket type filling method, and ladder heap dam formula layerwise construction technique is taken, and barricade is supported oneself without enclosing supporting, comprising the following steps: a, actual measurement barricade position section;B, it is divided and is layered according to wall profiles shape, and design the shape and length and width dimensions of the filling bag of each layered arrangement;C, it according to the layering of division, will be successively laid with by the filling bag of design customization;D, corresponding be fixed on of dehydrating tube and filling pipe is filled on bag;E, successively each filling bag is filled from the bottom to top using filling slurry, until the filling bag of topmost fills and connect top, forms filling counterfort;F, barricade maintenance reaches design strength.Have the characteristics that safety is good, construct that high-efficient, labor intensity is small, sealing effect is good and at low cost.Suitable for constructing the barricade, enclosing wall and divider wall of any shape and big cross section.

Description

Tunnel is layered pocket type self-support filling counterfort construction method

Technical field

The present invention relates to mining technical fields, particularly, are related to a kind of preceding dead zone outlet envelope of mine worked-out section filling Stifled large section roadway is layered pocket type self-support filling counterfort construction method.

Background technique

The method of mining by the way of filling is used by more and more mines, and extensive mine generallys use biggish stope structure parameter, Such as stage open stope afterwards filling, domestic mine level interval has reached 120m or more;Furthermore in order to improve the production efficiency, underground Mine mostly uses the mining equipment of enlargement to be exploited, and underground mines scraper bucket capacity has reached 10m3More than, in order to reach The operation of mechanical equipment and safety requirements, drift section require greatly, this all blocks to dead zone and brings great difficulty.

Barricade in filling in mine mining codes is constructed, the closure for 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 be applied to large section roadway gear Wall is constructed.

Existing filling counterfort has the disadvantages that

1, the form of constructing is mostly plate, and the anti-overturning of barricade can be poor;Since barricade is along the length of tunnel axis direction General shorter, anti-shear ability is poor;Lamellar filling counterfort anti-bending strength is poor, is not able to satisfy large section roadway demand for security.

2, 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 mine Mountain downhole production brings major safety risks.

3, long construction period.Cause stope integrated production capacity low, on the other hand, dead zone cannot fill in time, cause sky Area collapse emit, Pillar scaling damage, influence the safety and the rate of extraction of resource recovery.

4, transport of materials amount is big.It is more that barricade constructs quantity, and position dispersion, barricade intensity requirement is high, therefore barricade constructs institute Need quantity of material big.

5, large labor intensity.It is narrow that barricade constructs position working space, is difficult to adopt do mechanization operation.Such as concrete guard wall Construct, mostly use hand mixed concrete, manually entered spade in mold using the tools such as spade, when barricade height is more than It, will also be by manually having bad luck when certain limit.

6, filling counterfort supporting and retaining system high material consumption, big cross section barricade require high supporting intensity, need to consume a large amount of wood Material and steel, due to the corrosion impact by filling slurry and underground adverse circumstances, recovery difficult is very big, tends not to recycle, Or utilizability after the recovery is poor, causes resource serious waste.

7, it is poor to connect top obturation effect.The airtightness 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, worker enters barricade dead zone side by manhole, fills barricade surrounding using gunite concrete.The skill The complex process of art construction, construction are carried out in dead zone side, and operating environment is very poor;And gunite concrete maintenance is poor, connects with scar Imprecision is touched, sealing effect cannot ensure, therefore cannot effective mortar leakage prevention.

Summary of the invention

The present invention provides a kind of tunnels to be layered 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, safety difference and cost are high.

The present invention provides a kind of tunnel layering pocket type self-support filling counterfort construction method, carries out structure using pocket type filling method It builds, takes ladder heap dam formula layerwise construction technique, barricade is supported oneself without enclosing supporting, comprising the following steps: a, actual measurement barricade Position section;B, it is divided and is layered according to wall profiles shape, and design the shape and length and width of the filling bag of each layered arrangement Size;C, it according to the layering of division, will be successively laid with by the filling bag of design customization;D, by dehydrating tube and the corresponding installation of filling pipe It is fixed on filling bag;E, successively each filling bag is filled from the bottom to top using filling slurry, until topmost fills It fills out bag and fills and connect top, form filling counterfort;F, barricade maintenance reaches design strength.

Further, the filling bag design of step b specifically: filling bag shape 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 Height determines that drift section height is bigger, and filling bag length is bigger, and the length for filling bag is 1m~10m;Fill the width of bag: According to the section maximum width of the barricade construction location in tunnel determine, filling bag width be greater than section maximum width 10cm~ 20cm;Filling bag height is 0.2m~3m.

Further, there are dehydrating tube cuffs, the diameter of dehydrating tube cuff to be determined according to dehydration pipe diameter at filling bag both ends, Dehydrating tube cuff diameter is 50mm~150mm;Filling bag one end, there are the slurries fed for filling slurry to feed cuff, slurry The diameter for feeding cuff determines that it is 50mm~150mm that slurry, which feeds cuff diameter, according to filling pipe diameter.

Further, according to barricade intensity requirement, there are one or more in the middle part of filling bag reinforces for assembling barricade The pillar cuff of pillar.

Further, the material for filling bag is made using the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.

Further, the layered mode of step b specifically: according to the filling bag of design, structure is layered using ladder heap dam formula It makes technique and divides layering along the profile height direction of barricade construction location;Lower layer's barricade is layered length and is greater than upper layer barricade layering edge The length of tunnel axial direction, the filling bag length of corresponding lower layer are greater than the filling bag length on upper layer, are in rank between upper and lower level The layering of ladder type design partition, upper and lower fault is away from for 0.1m~1m.

Further, the filling bag of step c is laid with specifically: according to the layering of division, will press the filling bag of design customization According to from bottom to up with first grow after short sequence be laid on barricade construction location.

Further, in step d dehydrating tube and filling pipe installation specifically: by dehydrating tube on filling bag opposite cloth The dehydrating tube cuff set simultaneously is fixed with filling bag, is fixed by filling pipe insertion slurry charging cuff and with filling bag.

Further, step e specifically: poured into filling bag using filling slurry by filling pipe;First to most lower point The filling bag of layer is filled, and is then filled upwards in turn;In the filling bag filling slurry of most higher slice, in filling slurry Swelling agent is added, that realizes filling counterfort by the expansion effect of filling slurry connects top completely.

Further, accelerator is added in filling slurry to shorten the time of filling slurry condensation.

The invention has the following advantages:

Tunnel of the present invention is layered pocket type self-support filling counterfort construction method, with safety is good, it is high-efficient to construct, labour is strong Spend small, sealing effect is good, it is at low cost the features such as.

It improves and constructs efficiency, filling bag need to be only laid on wait construct in tunnel or empty according to design when barricade is constructed Area exit can start to fill, and without installing other supporting and retaining system equipment, reduce the complexity of Retaining wall.

The filling slurry prepared using filling system, is directly filled using pipeline and forms barricade, save manual handling A large amount of manual labors such as material.Filling system preparative capacibility is big, is conducive to shorten and constructs the time.

Barricade security performance is improved, using ladder heap dam formula layerwise construction technique, barricade is without adding other supportings, together When can enhance the anti-overturning energy of barricade, can satisfy large section roadway barricade and construct requirement.

Stope filling slurry dewatering speed is improved, the filling situation of stope filling dead zone is observed by dehydrating tube, Filling slurry crosses before barricade the height for the case where can passing through dehydrating tube observing charge level, is conducive to grasp stope filling feelings in time Condition prevents safety accident.By the way that dehydrating tube is arranged, be conducive to the dewatering speed for improving stope.

It reduces costs, the cost of filling slurry is generally significantly less than concrete, brick etc. and builds cost.Another aspect barricade fills Fill out be entire Filling mine-out area a part, be conducive to sharing for cost.Bag is filled to process using cheap membrane material, it is at low cost.

Sealing effect is good, adaptable, and filling bag is that flexible membrane material can be strict under filling slurry gravity It helps wall to be bonded with tunnel, can adapt to any section configuration.When back position fills, using expanding material or filling is utilized Main pipeline pressure can be realized and connect top comprehensively.

Suitable for constructing the barricade, enclosing wall and divider wall of any shape and big cross section.

Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention. Below with reference to figure, the present invention is described in further detail.

Detailed description of the invention

The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations 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 cross-sectional view 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 cross-sectional view of Fig. 3;

Fig. 5 is the structural schematic diagram of the filling bag without dehydrating tube cuff of the preferred embodiment of the present invention;

Fig. 6 is the structural schematic diagram of the filling bag with dehydrating tube cuff of the preferred embodiment of the present invention;

Fig. 7 is the structural schematic diagram of the filling bag with dehydrating tube and pillar cuff of the preferred embodiment of the present invention.

Marginal data:

1, bag is filled;2, dehydrating tube;3, filling pipe;4, dehydrating tube cuff;5, slurry feeds cuff;6, barricade reinforces branch Column;7, pillar cuff;8, roadway floor;9, back;10, wall is helped in tunnel;11, it is dehydrated cloth;12, stope filling dehydrating tube.

Specific embodiment

The embodiment of the present invention is described in detail below in conjunction with attached 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 cross-sectional view 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 cross-sectional view 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 schematic diagram of the filling bag with dehydrating tube cuff of the preferred embodiment of the present invention;Fig. 7 is the present invention The structural schematic diagram of the filling bag with dehydrating tube and pillar cuff of preferred embodiment.

As depicted in figs. 1 and 2, the tunnel of the present embodiment is layered pocket type self-support filling counterfort construction method, is filled using pocket type The method of filling out is constructed, and ladder heap dam formula layerwise construction technique is taken, and barricade is supported oneself without enclosing supporting, comprising the following steps: A, barricade position section is surveyed;B, divided and be layered according to wall profiles shape, and design each layered arrangement filling bag 1 it is outer Shape and length and width dimensions;C, it according to the layering of division, will be successively laid with by the filling bag 1 of design customization;D, it by dehydrating tube 2 and fills Corresponding be fixed on of pipe 3 is filled out to fill on bag 1;E, successively each filling bag 1 is filled from the bottom to top using filling slurry, Until the filling bag 1 of topmost fills and connect top, filling counterfort is formed;F, barricade maintenance reaches design strength.Tunnel of the present invention It is layered pocket type self-support filling counterfort construction method, has that safety is good, constructs that high-efficient, labor intensity is small, sealing effect is good, at The features such as this is low.It improves and constructs efficiency, filling bag 1 need to be only laid on wait construct in tunnel according to design when barricade is constructed Or dead zone exit, it can start to fill, without installing other supporting and retaining system equipment, reduce the complexity of Retaining wall.Using The filling slurry of filling system preparation, is directly filled using pipeline and forms barricade, save a large amount of bodies such as manual handling material Power labour.Filling system preparative capacibility is big, is conducive to shorten and constructs the time.Barricade security performance is improved, using ladder heap dam Formula layerwise construction technique, barricade can enhance the anti-overturning energy of barricade without adding other supportings, can satisfy big disconnected Face tunnel barricade constructs requirement.Stope filling slurry dewatering speed is improved, by dehydrating tube 2 convenient for observation stope filling dead zone Filling situation, filling slurry is crossed before barricade can be conducive to grasp in time by observing the height of charge level the case where dehydrating tube 2 Stope filling situation, prevents safety accident.By the way that dehydrating tube 2 is arranged, be conducive to the dewatering speed for improving stope.It reduces Cost, the cost of filling slurry are generally significantly less than concrete, brick etc. and build cost.The filling of another aspect barricade is that entire dead zone is filled The a part filled out is conducive to sharing for cost.Bag 1 is filled to process using cheap membrane material, it is at low cost.Sealing effect is good, adapts to Property it is strong, filling bag 1 is flexible membrane material, under filling slurry gravity, strict wall 10 can be helped to be bonded with tunnel, Neng Goushi Answer any section configuration.When 9 position of back fills, using expanding material or using filling main pipeline pressure, it can be realized Top is connect comprehensively.Suitable for constructing the barricade, enclosing wall and divider wall of 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 filling bag 1 of step b is designed specifically Are as follows: filling 1 shape of bag is that cube, cuboid or other and cross-section shape of roadway are adapted according to the crosssection shape design in tunnel Polygon rib body.The contour structures of corresponding filling bag 1 are designed according to cross-section shape of roadway, and make the height for filling bag 1 The size of direction and width direction is greater than drift section size, makes to fill bag 1 in the filling slurry stowing operation of filling bag 1 Respectively with adjacent filling bag 1, roadway floor 8, back 9 and tunnel side wall 10 carry out it is comprehensive be bonded, to avoid sky The problems such as area's 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..It fills the length of bag 1: being determined according to the height of drift section, drift section is high Degree is bigger, and filling 1 length of bag is bigger.The length for filling bag 1 is 1m~10m.Fill the width of bag 1: according to the barricade structure in tunnel The section maximum width for making position determines.It fills 1 width of bag and is greater than section maximum width 10cm~20cm.Filling 1 height of bag is 0.2m~3m.Production, transport and the laying that conveniently can individually fill bag 1, can reduce the workload of scene laying, simultaneously Affixed structural stability is closely contacted with each other after meeting ground paste filling.When barricade is constructed only bag need to will be filled according to design It is laid on wait construct in tunnel or dead zone exit, can start to fill, without installing other supporting and retaining system equipment, reduce barricade and apply The complexity of work.The filling slurry prepared using filling system, is directly filled using pipeline and forms barricade, is saved artificial A large amount of manual labors such as materials hauling.Filling system preparative capacibility is big, is conducive to shorten and constructs the time.Filling slurry can add 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, there are dehydrating tube sleeves at filling 1 both ends of bag Mouth 4.The diameter of dehydrating tube cuff 4 is determined according to 2 diameter of dehydrating tube.4 diameter of dehydrating tube cuff is 50mm~150mm.It can fit It should be assembled in the dehydrating tube 2 of different tube diameters, the dehydrating tube that can choose 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.Filling 1 one end of bag, there are the material fed for filling slurry Slurry charging cuff 5.The diameter that slurry feeds cuff 5 is determined according to 3 diameter of filling pipe.Slurry feed 5 diameter of cuff be 50mm~ 150mm.The filling pipe 3 for being adapted to different tube diameters assembles, 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, convenient for observation filling situation.The cloth on filling bag Dehydrating tube cuff 4 is set, dehydrating tube 2 can be conducive to the dewatering speed for improving stope directly through dehydrating tube cuff 4.Filling material The height that the case where can passing through dehydrating tube before barricade observes charge level was starched, is conducive to grasp stope filling situation in time, prevent Safety accident occurs.

It,, can there are one at 1 middle part of filling bag according to barricade intensity requirement in the present embodiment as shown in Fig. 3, Fig. 4 and Fig. 7 A or multiple pillar cuffs 7 for reinforcing pillar 6 for assembling barricade.

In the present embodiment, the material of filling bag 1 is made using the membrane material processing of geotechnique's establishment cloth or the impermeable aggregate of drainage.It fills It fills out bag to process using the membrane material of the impermeable aggregate of drainage, is conducive to the dewatering speed for accelerating slurry, shortens slurry condensation setting rate. Filling bag is flexible membrane material, under filling slurry gravity, strict wall can be helped to be bonded with tunnel, can adapt to any disconnected Face shape.When back position fills, using expanding material or using filling main pipeline pressure, it can be realized and connect top comprehensively.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the layered mode of step b specifically: 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 layer's barricade It is layered length and is greater than the layering of upper layer barricade along the length of tunnel axial direction.1 length of filling bag of corresponding lower layer is greater than upper layer 1 length of filling bag.In stepped design partition layering between upper and lower level.Upper and lower fault is away from for 0.1m~1m.Using ladder heap Dam formula layerwise construction technique, barricade can enhance the anti-overturning energy of barricade without adding other supportings, can satisfy big Section tunnel barricade constructs requirement.It can be improved barricade security performance.Using ladder heap dam formula layerwise construction technique, barricade is not necessarily to Other supportings are added, while the anti-overturning energy of barricade can be enhanced, large section roadway barricade is can satisfy and constructs requirement.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the filling bag of step c is laid with specifically: according to division Layering.By by the filling bag 1 of design customization according to from bottom to up with first grow after short sequence 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 Are as follows: it is 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 and is expected Slurry charging cuff 5 is simultaneously fixed with filling bag 1.Stope filling slurry dewatering speed is improved, convenient for observation filling situation.In filling bag Upper arrangement dehydrating tube cuff 4, dehydrating tube 2 can be conducive to the dewatering speed for improving stope directly through dehydrating tube cuff 4.It fills Extender paste crosses before barricade the height for the case where can passing through dehydrating tube observing charge level, is conducive to grasp stope filling situation in time, Prevent safety accident.Optionally, the one end in dehydrating tube 2 towards stope goaf ground paste filling region is equipped with dehydration cloth 11, To prevent the filling slurry in stope goaf ground paste filling region from flowing into dehydrating tube 2.Optionally, 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 specifically: filling pipe 3 is passed through using filling slurry It pours into filling bag 1.The filling bag 1 of most lower leaf is filled first, is then filled upwards in turn.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 to realize filling counterfort Top is connect completely.

In the present embodiment, accelerator is added in filling slurry to shorten the time of filling slurry condensation.

When implementation, a kind of tunnel layering pocket type self-support filling counterfort construction method is provided, specific implementation step is as follows:

(1) barricade position roadway cross-section diagram or dead zone outlet shapes to be filled are surveyed

(2) filling bag design processing

Filling bag shape is cube or other rib bodies being adapted with drift section.

It fills bag length: determining that drift section height is bigger according to the height of drift section, filling bag length is bigger, is 1m~10m;It fills bag width: being determined according to section maximum width in position to be constructed, filling bag width is equal to drift section width Add 10cm~20cm;Fill bag height: 0.2m~3m.

Dehydrating tube cuff is stayed at filling bag both ends, and cuff diameter is determined according to dehydration pipe diameter, is 50mm~150mm;Filling Bag one end stays filling slurry to feed cuff, and cuff diameter is determined according to filling pipe diameter, is 50mm~150mm.

According to barricade intensity requirement, pillar can be stayed to reinforce cuff in the middle part of filling bag.

Fill the membrane material processing that bag material is geotechnique's establishment cloth or the impermeable aggregate of drainage.

(3) it fills

Ladder heap dam formula layerwise construction technique is taken, position profile height direction is constructed along barricade and divides layering, lower layer's gear Wall is greater than upper layer along the length of tunnel axis direction, i.e. the filling bag length of lower layer is greater than the filling bag length on upper layer, upper and lower level Between in step type, upper and lower fault is away from for 0.1m~1m.

When construction, by the filling bag of customization processing, according to from bottom to up, short sequence is laid on tunnel to be filled after first growing It is interior.Dehydrated tube is passed through and designs corresponding dehydration cuff, filling pipeline insertion filling charging cuff is tied up using iron wire.It fills It fills out after being ready to complete, the filling bag of most lower leaf is filled first, is then filled upwards in turn.It is poured into using filling slurry Bag is filled, in order to shorten filling slurry setting time, accelerator is added in filling slurry.Topmost is filled close to the filling bag of top plate When filling out, swelling agent is added, connects top completely with realize filling counterfort.

(4) filling counterfort conserves

Filling counterfort maintenance reaches design strength, can start Filling mine-out area operation.

Tunnel of the present invention is layered pocket type self-support filling counterfort construction method: (1) improving and construct efficiency.It is only needed when barricade is constructed According to design, filling bag is laid on wait construct in tunnel or dead zone exit, can start to fill, reduce Retaining wall Complexity.(2) it using the filling slurry of filling system preparation, is directly filled using pipeline and forms barricade, saved artificial A large amount of manual labors such as materials hauling.Filling system preparative capacibility is big, is conducive to shorten and constructs the time.Filling slurry can add Accelerator shortens setting time.After filling counterfort filling is constructed, the packing job of dead zone can be carried out immediately.(3) barricade is improved Security performance.Using ladder heap dam formula layerwise construction technique, barricade can enhance the anti-of barricade without adding other supportings It topples performance, can satisfy large section roadway barricade and construct requirement.(4) stope filling slurry dewatering speed is improved, convenient for observation Fill situation.Arrange that dehydrating tube cuff, dehydrating tube can be conducive to the dehydration for improving stope directly through cuff on filling bag Speed.Filling slurry crosses before barricade the height for the case where can passing through dehydrating tube observing charge level, is conducive to grasp stope in time and fill Situation is filled out, safety accident is prevented.(5) filling bag is processed using the membrane material of the impermeable aggregate of drainage, is conducive to accelerate slurry Dewatering speed shortens slurry condensation setting rate.(6) cost is reduced.The cost of filling slurry is generally significantly less than concrete, brick etc. Build cost;The filling of another aspect barricade is a part of entire Filling mine-out area, is conducive to sharing for cost.(7) sealing effect It is good, it is adaptable.Filling bag is flexible membrane material, under filling slurry gravity, strict wall can be helped to be bonded with tunnel, energy Enough adapt to any section configuration.When back position fills, using expanding material or filling main pipeline pressure, Neng Goushi are utilized Top is now connect comprehensively.(8) in conclusion this method has, safety is good, constructs that high-efficient, labor intensity is small, and sealing effect is good, at The features such as this is low.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of tunnel is layered pocket type self-support filling counterfort construction method, is constructed using pocket type filling method, take ladder heap Dam formula layerwise construction technique, barricade are supported oneself without enclosing supporting, which comprises the following steps:
A, barricade position section is surveyed;
B, it is divided and is layered according to wall profiles shape, and design the shape and length and width ruler of the filling bag (1) of each layered arrangement It is very little;
C, it according to the layering of division, will be successively laid with by the filling bag (1) of design customization;
D, corresponding be fixed on of dehydrating tube (2) and filling pipe (3) is filled on bag (1);
E, successively each filling bag (1) is filled from the bottom to top using filling slurry, until the filling bag (1) of topmost fills Top is filled out and connect, filling counterfort is formed;
F, barricade maintenance reaches design strength.
2. tunnel according to claim 1 is layered pocket type self-support filling counterfort construction method, which is characterized in that
The filling bag (1) of the step b designs specifically:
It is cube, cuboid or other with cross-section shape of roadway phase that bag (1) shape, which is filled, according to the crosssection shape design in tunnel The polygon rib body of adaptation;
It fills the length of bag (1): determining that drift section height is bigger according to the height of drift section, filling bag (1) length is got over Greatly, the length for filling bag (1) is 1m~10m;
It fills the width of bag (1): being determined according to the section maximum width of the barricade construction location in tunnel, filling bag (1) width etc. Add 10cm~20cm in drift section width;
Filling bag (1) is highly 0.2m~3m.
3. tunnel according to claim 2 is layered pocket type self-support filling counterfort construction method, which is characterized in that
Bag (1) both ends are filled there are dehydrating tube cuff (4),
The diameter of dehydrating tube cuff (4) is determining according to dehydrating tube (2) diameter,
Dehydrating tube cuff (4) diameter is 50mm~150mm;
Filling bag (1) one end, there are the slurries fed for filling slurry to feed cuff (5),
The diameter that slurry feeds cuff (5) is determining according to filling pipe (3) diameter,
It is 50mm~150mm that slurry, which feeds cuff (5) diameter,.
4. tunnel according to claim 3 is layered pocket type self-support filling counterfort construction method, which is characterized in that
According to barricade intensity requirement, reinforce pillar (6) for assembling barricade there are one or more in the middle part of filling bag (1) Pillar cuff (7).
5. tunnel according to claim 2 is layered pocket type self-support filling counterfort construction method, which is characterized in that
The material for filling bag (1) is made 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, feature exists In,
The layered mode of the step b specifically:
According to the filling bag (1) of design, using ladder heap dam formula layered structure technique along the profile height side of barricade construction location It is layered to dividing;
Lower layer's barricade is layered length and is greater than length of the barricade layering in upper layer along tunnel axial direction, the filling bag of corresponding lower layer (1) length is greater than filling bag (1) length on upper layer,
It is layered between upper and lower level in stepped design partition,
Upper and lower fault is away from for 0.1m~1m.
7. tunnel according to any one of claim 1 to 5 is layered pocket type self-support filling counterfort construction method, feature exists In,
The filling bag (1) of the step c is laid with specifically:
According to the layering of division, by by the filling bag (1) of design customization according to from bottom to up with first grow after short sequence 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, feature exists In,
The installation of dehydrating tube (2) and filling pipe (3) in the step d specifically:
It is fixed by dehydrating tube (2) dehydrating tube cuff (4) positioned opposite in filling bag (1) and with filling bag (1),
It is fixed by filling pipe (3) insertion slurry charging cuff (5) and 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, feature exists In,
Step e specifically:
It is poured into filling bag (1) using filling slurry by filling pipe (3);
The filling bag (1) of most lower leaf is filled first,
Then it fills upwards in turn;
In filling bag (1) filling slurry of most higher slice, swelling agent is added in filling slurry, passes through the expansion of filling slurry Effect connects top with realize filling counterfort completely.
10. tunnel according to claim 9 is layered pocket type self-support filling counterfort construction method, which is characterized in that
Accelerator is added in filling slurry to shorten the time of filling slurry condensation.
CN201710093444.8A 2017-02-21 2017-02-21 Tunnel is layered pocket type self-support filling counterfort construction method CN106870001B (en)

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