CN108167004A - A kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension device - Google Patents
A kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension device Download PDFInfo
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- CN108167004A CN108167004A CN201711307701.XA CN201711307701A CN108167004A CN 108167004 A CN108167004 A CN 108167004A CN 201711307701 A CN201711307701 A CN 201711307701A CN 108167004 A CN108167004 A CN 108167004A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 56
- 238000005553 drilling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 2
- 235000011613 Pinus brutia Nutrition 0.000 claims 2
- 241000018646 Pinus brutia Species 0.000 claims 2
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 abstract description 17
- 239000003245 coal Substances 0.000 description 9
- 230000002045 lasting effect Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/003—Caps for supporting mine roofs with essential hydraulic elements
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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)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension devices.A kind of tunnel sliding rail type girders anchorage cable method for protecting support, including：Two anchor cables are anchored at respectively in two inclined drills of the back；Tail portion of the scalable truss of sliding rail type respectively with two anchor cables is connect, and the scalable truss of sliding rail type is made to be close to the back surface setting；Wherein, the scalable truss of sliding rail type is in Bracing Process, the size of horizontal applied force that can be generated according to back horizontal movement to it, by the way that the flexible of the scalable truss of sliding rail type is controlled to adjust the lateral extrusion stress of the scalable truss of sliding rail type, make horizontal applied force described in lateral extrusion stress equilibrium, to adapt to or inhibit the changing of the relative positions of back lateral extrusion or to loosen dilatation deformation.Stabilized structure of the present invention, easy to adjust, supporting effect is good.
Description
Technical field
The present invention relates to back support technology field more particularly to a kind of tunnel sliding rail type girders anchorage cable method for protecting support
And suspension device.
Background technology
Increasingly mature with mining coal winning technology and its digging support equipment manufacturing process, mining is adopted
Coal method is widely applied in high seam especially super high seam exploitation." big cross section " puts coal road with " Hou Meiding " as comprehensive
Characteristic.The comprehensive coal road of putting of big cross section is being tunneled in maintenance process, often being there is top plate lateral extrusion by violent digging disturbing influence
Phenomena such as changing of the relative positions.If top plate coal body weak broken, supporting will induce top plate part or large area roof fall not in time.
Anchor pole (rope) supporting is widely applied in the major mining area in China, which significantly improves lane
Road supporting effect improves roof safety situation, simplifies face end and advance support technique, is quickly dug conducive to coal road
Into.However, put coal road for big cross section is comprehensive, although by improving anchor pole (rope) density strengthening supporting, supporting effect is still not
It is good.The combination supportings mode such as anchor pole (rope) cooperation steel band, reinforcing bar ladder beam and channel steel big cross section is comprehensive put coal roadway support during
Certain effect is played, but because distortion and tear etc. occurs in the top plate lateral extrusion changing of the relative positions, steel band, reinforcing bar ladder beam and channel steel etc.
Breakoff phenomenon.Once supporting construction fails, supporting effect will significantly reduce.Truss support can be in the level and vertical of back
Direction provides extrusion stress simultaneously, plays good supporting effect.However, current truss support structure is because of top plate lateral extrusion
There is phenomena such as truss loosening, anchor pole (rope) loose or dislocation in the changing of the relative positions, directly reduces extrusion stress, supporting effect rapid drawdown, into
And significantly increase roof fall danger.
The telescopic girder device designed at present plays certain effect in terms of the top plate lateral extrusion changing of the relative positions is adapted to.
But at the scene in supporting practice, it is difficult to adjust suitable truss length in due course according to lateral extrusion amount of force.Adjust truss
It needs to dismount connection component during length, process is cumbersome and labourer is time-consuming.Meanwhile current telescopic girder device cannot prop up
Lasting extrusion stress is provided, and then be difficult to lasting controlroof lateral extrusion sliding deformation during shield.
Invention content
The purpose of the present invention is exactly to overcome the above-mentioned problems of the prior art, provides a kind of tunnel sliding rail type truss
Cable bolting method can be provided lasting in Bracing Process and be adjusted in due course according to the horizontal applied force that movement of roof generates
Whole lateral extrusion stress, so as to fulfill the stabilization supporting to back.
It is a further object of the present invention to provide a kind of tunnel sliding rail type girders anchorage cable suspension devices.
In order to realize the first object of the present invention, following technical scheme is provided：
A kind of tunnel sliding rail type girders anchorage cable method for protecting support, including：Drilling is tilted upward from the both sides on back surface
Two holes, to form two inclined drills in the back；Two anchor cables are anchored at the back respectively
Two inclined drills in；Tail portion of the scalable truss of sliding rail type respectively with two anchor cables is connect, and make the sliding rail
The scalable truss of type is close to the back surface setting, so as to back effective support；Wherein, the sliding rail type can
Truss stretch in Bracing Process, the size of horizontal applied force that can be generated according to back horizontal movement to it passes through control
The flexible of the scalable truss of sliding rail type processed adjusts the lateral extrusion stress of the scalable truss of sliding rail type, puts down lateral extrusion stress
Weigh the horizontal applied force, to adapt to or inhibit the changing of the relative positions of back lateral extrusion or to loosen dilatation deformation.
Preferably, the scalable truss of sliding rail type is the scalable truss of hydraulic pressure sliding rail type, including：Outer rail, one end with
A connection in two anchor cables；Internal rail, one end are inlaid in the sliding slot of the outer rail other end and can be moved relative to outer rail, another
One end is connect with another anchor cable；The hydraulic jack being connected between the outer rail and internal rail；Wherein, the hydraulic jack
It is arranged on inside the internal rail and outer rail, and the end mutually chimeric with the internal rail and outer rail is fixedly connected respectively at its both ends；Its
In, the hydraulic jack controls the flexible of the scalable truss of sliding rail type by the way that the internal rail is driven to be moved relative to outer rail.
Preferably, the sliding slot that the outer rail is used to be embedded in internal rail is in " convex " font.
Wherein, the scalable truss of sliding rail type can generate it according to back horizontal movement in Bracing Process
Horizontal applied force size, by the way that the flexible of sliding rail type scalable truss is controlled to adjust the level of the scalable truss of sliding rail type
Extrusion stress includes horizontal applied force described in lateral extrusion stress equilibrium：When back horizontal movement can stretch sliding rail type
When the horizontal applied force that contracting truss generates is less than the lateral extrusion stress of the scalable truss loading of the sliding rail type, hydraulic jack
Unloading makes the opposite outer rail movement of internal rail shorten the scalable truss of sliding rail type, so as to which the lateral extrusion stress be made to reduce to balance
The horizontal applied force；When back horizontal movement is equal to the cunning to the horizontal applied force that the scalable truss of sliding rail type generates
During the lateral extrusion stress of the scalable truss loading of rail type, hydraulic jack is not loaded with or unloads；When back horizontal movement
It is more than the lateral extrusion stress of the scalable truss loading of the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type generates
When, hydraulic jack loading makes internal rail backwards to outer rail movement to extend the scalable truss of sliding rail type, so as to make the lateral extrusion
Stress increases to balance the horizontal applied force.
Preferably, the internal rail is equipped with the anchor cable hole of slat shape with outer rail in its mutually separate end respectively；Described two
The tail portion of anchor cable is connect respectively by the anchor cable hole of the slat shape with the internal rail and outer rail.
Wherein, by observing whether the anchor cable tail portion moves along the slat hole, to judge that the back is horizontal
The horizontal applied force that movement generates is less than or greater than the lateral extrusion stress of the scalable truss of sliding rail type.
In order to realize another object of the present invention, following technical scheme is provided：
A kind of tunnel sliding rail type girders anchorage cable suspension device, including：For being anchored at the two of back inclinations respectively
Two anchor cables in drilling；The sliding rail type for being connected respectively with the tail portion of two anchor cables and being close to the setting of back surface can
Flexible truss；Wherein, the scalable truss of sliding rail type can generate it according to back horizontal movement in Bracing Process
Horizontal applied force size, by the way that the flexible of sliding rail type scalable truss is controlled to adjust the level of the scalable truss of sliding rail type
Extrusion stress makes horizontal applied force described in lateral extrusion stress equilibrium, to adapt to or inhibit the back lateral extrusion changing of the relative positions
Or loosen dilatation deformation.
Preferably, the scalable truss of sliding rail type is the scalable truss of hydraulic pressure sliding rail type, including：Outer rail, one end with
A connection in two anchor cables；Internal rail, one end are inlaid in the sliding slot of the outer rail other end and can be moved relative to outer rail, another
One end is connect with another anchor cable；The hydraulic jack being connected between the outer rail and internal rail；Wherein, the hydraulic jack
It is arranged on inside the internal rail and outer rail, and the end mutually chimeric with the internal rail and outer rail is fixedly connected respectively at its both ends；Its
In, the hydraulic jack controls the flexible of the scalable truss of sliding rail type by the way that the internal rail is driven to be moved relative to outer rail.
Wherein, the internal rail is equipped with the anchor cable hole of slat shape with outer rail in its mutually separate end respectively；Two anchors
The tail portion of rope is connect respectively by the anchor cable hole of the slat shape with the internal rail and outer rail.
Wherein, the sliding slot that the outer rail is used to be embedded in internal rail is in " convex " font.
Beneficial effects of the present invention embody in the following areas：
1) the scalable truss of sliding rail type of the present invention is entrenched in " convex " type sliding slot of outer rail using the sliding rail of internal rail and slid, and is made
Inner rails relative to outer rail move when it is more flexible, while coordinate hydraulic jack can facilitate in Bracing Process adjust sliding rail type can
The length of flexible truss adjusts truss length without dismounting connection component in Bracing Process, alleviates labor intensity,
Improve support efficiency；
2) outer rail integrated structure chimeric with internal rail of the invention, compact-sized, stability is good, being capable of uniform stand under load；
3) present invention is in Bracing Process, when back horizontal movement leads to the scalable truss of sliding rail type side along its length
When being less than or equal to hydraulic jack on-load pressure to the active force of carrying, hydraulic jack unloads or is failure to actuate；When sliding rail type
When the active force of scalable truss carrying is more than hydraulic jack on-load pressure, hydraulic jack loading；It allows the invention to
The extrusion stress area of lasting stability is formed above back, in due course decrease or offsets what back movement generated
Extruding force makes back tend to be steady in a long-term, so as to prevent the back water caused by truss lateral extrusion stress weakens
It is flat to squeeze the changing of the relative positions or loosen dilatation deformation, it is ensured that the scalable truss of sliding rail type will not be distorted tear, disconnection failure with loosening
Phenomena such as deformation, and then prevent the generation of fall of ground accident.
Description of the drawings
Fig. 1 is the schematic diagram that a kind of tunnel sliding rail type girders anchorage cable suspension device of the present invention carries out back supporting；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the structure diagram of the hydraulic pressure sliding rail type truss of the present invention；
Fig. 4 is I-I sectional views in Fig. 3；
Fig. 5 is II-II sectional views in Fig. 3；
Fig. 6 is III-III sectional views in Fig. 3；
Fig. 7 is IV-IV sectional views in Fig. 3；
Fig. 8 is V-V sectional views in Fig. 3；
Fig. 9 is VI-VI sectional views in Fig. 3；
Figure 10 is VII-VII sectional views in Fig. 3.
Reference sign：1- tunnels；2- tunnels portion of side；3- back thick-layer coals top；4- backs rock stratum；5- is slided
The scalable truss of rail type；5a- outer rails；5b- sliding rails；5c- internal rails；6- anchor cables；7- slats hole；8- outer rail fixed hydraulic jack groups
Part；9- internal rail fixed hydraulic jack components；10- hydraulic jacks；10a- oil cylinders；10b- pistons；10c- hydraulic jacks bottom
Seat bolt；10d- hydraulic jack head bolts.
Specific embodiment
The present invention provides a kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension device, can be according to back water
The size of horizontal applied force that flat movement generates is adjusted the size of lateral extrusion stress in time, is formed to back
Lasting stability supporting；Since suspension device can be adjusted in due course, stable structure avoids traditional truss because of top plate level
The problems such as moving the loosening failure occurred, bending failure.
The present invention is described in detail with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, the suspension device of the present embodiment includes：For being anchored at the two of back inclinations respectively
Two anchor cables 6 in drilling；The sliding rail type for being connected respectively with the tail portion of two anchor cables and being close to the setting of back surface can be stretched
Contracting truss 5.
Wherein, the back of the present embodiment diagram includes back thick-layer coal top 3 and back rock stratum 4.
In actual use, as shown in Fig. 2, on back, it is parallel that the more sets of continuous arrangement are moved towards along tunnel
The scalable truss 5 of sliding rail type, wherein, it often covers tail portion of the scalable truss 5 of sliding rail type respectively with two anchor cables 6 and connect；Such as Fig. 1 institutes
Showing, two inclined drills that two anchor cables 6 anchor are located at the both sides of the same section top plate in tunnel, and tilt to tunnel portion of side 2, with
The scalable truss 5 of sliding rail type connect after anchor cable with a vertical 10 °~30 ° of angle, and each inclined drill is deeply extremely
4 stability region of back rock stratum.
As shown in figure 3, the scalable truss 5 of the sliding rail type of the present embodiment is the scalable truss of hydraulic pressure sliding rail type, including：Outer rail
5a, one end are connect with one in two anchor cables；Internal rail 5c, one end are inlaid in the sliding slot of the outer rail other end and can be opposite
Outer rail moves, and the other end is connect with another anchor cable；The hydraulic jack 10 being connected between outer rail and internal rail；
Wherein, the position that internal rail 5c is inlaid in outer rail 5a sliding slots is sliding rail 5b.As shown in FIG. 8 and 9, outer rail 5a is for embedding
The sliding slot for filling sliding rail 5b is in " convex " font.
As shown in figs. 3-10, the hydraulic jack 10 of the present embodiment is arranged on inside internal rail and outer rail.Specifically, hydraulic pressure thousand
Jin top 10 includes：Oil cylinder 10a and piston 10b；Oil cylinder 10a is fixed on by outer rail fixed hydraulic jack component 8 in outer rail 5a,
Piston 10b is fixed on by internal rail fixed hydraulic jack component 9 in internal rail 5c；Wherein, outer rail fixed hydraulic jack component 8
The mode being connected through a screw thread respectively with internal rail fixed hydraulic jack component 9 is fixedly mounted on what outer rail 5a and internal rail 5c connected
In end.
Wherein, the piston 10b of hydraulic jack 10 relative to oil cylinder 10a move when, driving be secured to connection internal rail 5c
It is moved relative to outer rail 5a, so as to control the flexible of the scalable truss 5 of sliding rail type.When it is implemented, the inner surface and cunning of outer rail 5a
The outer surface clearance fit of rail 5b, in order to which internal rail 5c is moved relative to outer rail 5a.
As shown in figure 3, internal rail 5c and outer rail 5a are equipped with the anchor cable hole 7 of slat shape in its mutually separate end respectively, two
The tail portion of anchor cable 6 is connect respectively by the anchor cable hole 7 of slat shape with internal rail 5c and outer rail 5a.It, can since anchor cable hole 7 is slat shape
Mobile space is provided, while also provide the space elongated or shortened for the scalable truss 5 of sliding rail type with the tail portion for anchor cable 6.
The present embodiment also provides a kind of method that suspension device using the present embodiment carries out back supporting.
As shown in Figure 1, the tunnel sliding rail type girders anchorage cable method for protecting support of the present embodiment, including：Using rock drill from tunnel
The both sides of top board surface tilt upward two holes of Drilling, to form two inclined drills in back；It is stirred using anchor cable
It mixes device, rock drill and resin explosive roll the body of rod of two anchor cables 6 is anchored at respectively in two inclined drills of back；It will be sliding
Tail portion of the both ends of the scalable truss 5 of rail type respectively with two anchor cables 6 is connect, and the scalable truss 5 of sliding rail type is made to be close to tunnel
Top board surface is set, so as to back effective support.
Wherein, the scalable truss 5 of the sliding rail type of the present embodiment, can be according to back horizontal movement pair in Bracing Process
The size of its horizontal applied force generated, by controlling the flexible of the scalable truss 5 of sliding rail type that can be stretched to adjust sliding rail type in due course
The lateral extrusion stress of contracting truss 5 makes lateral extrusion stress equilibrium horizontal applied force, to adapt to or inhibit back horizontal
It squeezes the changing of the relative positions or loosens dilatation deformation.
It should be noted that should the up-hole since an opposed flattened surface of back as possible, to ensure two
The lower end of a drilling is located on same more smooth back surface as possible, so as to make the scalable truss 5 of sliding rail type can be with
It is close to the setting of back surface, improves the supporting effect of the present invention.
As shown in figure 3, the present embodiment drives internal rail 5c relative to outer rail 5a movements to control sliding rail by hydraulic jack 10
The scalable truss 5 of type stretches；When the scalable truss 5 of sliding rail type elongates or shortens, the level of the scalable truss 5 of sliding rail type is squeezed
Compression increases or reduces.Specifically, when hydraulic jack loads, the scalable truss 5 of sliding rail type is driven to extend, so as to make level
Extrusion stress increases due to hydraulic jack loads；When hydraulic jack unloads, the scalable truss 5 of sliding rail type is driven to shorten, from
And lateral extrusion stress is made to reduce due to hydraulic jack unloads.
Specifically, the present embodiment in Bracing Process, adjusts the lateral extrusion stress of the scalable truss 5 of sliding rail type to balance
The method for the horizontal applied force that back horizontal movement generates includes：
It can be stretched when back horizontal movement is less than the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type 5 generates
During the lateral extrusion stress that contracting truss 5 loads, the unloading of hydraulic jack 10 makes the opposite outer rail 5a movements of internal rail 5c shorten sliding rail
The scalable truss 5 of type comes and back horizontal movement pair so as to reduce the lateral extrusion stress of the scalable truss 5 of sliding rail type
The horizontal applied force that the scalable truss 5 of sliding rail type generates reaches balance；
It can be stretched when back horizontal movement is equal to the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type 5 generates
During the lateral extrusion stress of contracting truss loading, hydraulic jack 10 is not loaded with or unloads；
It can be stretched when back horizontal movement is more than the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type 5 generates
During the lateral extrusion stress that contracting truss 5 loads, the loading of hydraulic jack 10 makes internal rail 5c move to extend sliding rail backwards to outer rail 5a
The scalable truss 5 of type, so as to which the increase of the lateral extrusion stress of the scalable truss 5 of sliding rail type be made to come and back horizontal movement pair
The horizontal applied force that the scalable truss 5 of sliding rail type generates reaches balance.
When it is implemented, can whether mistake be occurred by position of 6 tail portion of field observation anchor cable in the anchor cable hole 7 of slat shape
Displacement is moved, to judge whether the horizontal applied force that back horizontal movement generates changes.
When 6 tail portion of anchor cable is moved along the anchor cable hole 7 of slat shape, the horizontal applied force that back horizontal movement generates is small
In or more than sliding rail type scalable truss 5 lateral extrusion stress, driving 10 load or unload of hydraulic jack makes horizontal work
Firmly reach balance with lateral extrusion stress.
The present embodiment gives hydraulic jack on-load pressure by pressurized equipment, passes through relief valve pressure release.
Although above-mentioned elaborate the present invention, however, the present invention is not limited thereto, those skilled in the art can
It is modified with principle according to the present invention, therefore, the various modifications that all principles according to the invention carry out all should be understood to
Fall into protection scope of the present invention.
Claims (10)
1. a kind of tunnel sliding rail type girders anchorage cable method for protecting support, which is characterized in that including：
Two holes of Drilling are tilted upward from the both sides on back surface, brill is tilted to form two in the back
Hole；
Two anchor cables are anchored at respectively in two inclined drills of the back；
Tail portion of the scalable truss of sliding rail type respectively with two anchor cables is connect, and makes the scalable truss of sliding rail type tight
The back surface setting is pasted, so as to back effective support；
Wherein, the scalable truss of sliding rail type is in Bracing Process, the water that can be generated according to back horizontal movement to it
The size of flat active force, by the way that the flexible of sliding rail type scalable truss is controlled to adjust the lateral extrusion of the scalable truss of sliding rail type
Stress makes horizontal applied force described in lateral extrusion stress equilibrium, to adapt to or inhibit the changing of the relative positions of back lateral extrusion or pine
Dynamic dilatation deformation.
2. tunnel sliding rail type girders anchorage cable method for protecting support according to claim 1, which is characterized in that the sliding rail type can be stretched
Contracting truss is the scalable truss of hydraulic pressure sliding rail type, including：
Outer rail, one end are connect with one in two anchor cables；
Internal rail, one end are inlaid in the sliding slot of the outer rail other end and can be moved relative to outer rail, the other end and another anchor cable
Connection；
The hydraulic jack being connected between the outer rail and internal rail；
Wherein, the hydraulic jack is arranged on inside the internal rail and outer rail, and its both ends respectively with the internal rail and outer rail
Mutually chimeric end is fixedly connected；
Wherein, the hydraulic jack controls stretching for the scalable truss of sliding rail type by driving the internal rail relative to outer rail movement
Contracting.
3. tunnel sliding rail type girders anchorage cable method for protecting support according to claim 2, which is characterized in that the outer rail is for embedding
The sliding slot for filling internal rail is in " convex " font.
4. tunnel sliding rail type girders anchorage cable method for protecting support according to claim 3, which is characterized in that the sliding rail type can be stretched
Contracting truss is in Bracing Process, and the size of horizontal applied force that can be generated according to back horizontal movement to it passes through control
The flexible of the scalable truss of sliding rail type adjusts the lateral extrusion stress of the scalable truss of sliding rail type, makes lateral extrusion stress equilibrium
The horizontal applied force includes：
When back horizontal movement is scalable less than the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type generates
During the lateral extrusion stress of truss loading, hydraulic jack unloading makes the opposite outer rail movement of internal rail shorten the scalable purlin of sliding rail type
Frame, so as to which the lateral extrusion stress be made to reduce to balance the horizontal applied force；
When back horizontal movement is scalable equal to the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type generates
During the lateral extrusion stress of truss loading, hydraulic jack is not loaded with or unloads；
When back horizontal movement is scalable more than the sliding rail type to the horizontal applied force that the scalable truss of sliding rail type generates
During the lateral extrusion stress of truss loading, hydraulic jack loading makes internal rail backwards to outer rail movement to extend the scalable purlin of sliding rail type
Frame, so as to which the lateral extrusion stress be made to increase to balance the horizontal applied force.
5. tunnel sliding rail type girders anchorage cable method for protecting support according to claim 4, which is characterized in that the internal rail and outer rail
The anchor cable hole of slat shape is equipped in its mutually separate end respectively；The tail portion of two anchor cables passes through the slat shape respectively
Anchor cable hole is connect with the internal rail and outer rail.
6. tunnel sliding rail type girders anchorage cable method for protecting support according to claim 5, which is characterized in that by observing the anchor
Whether rope tail portion moves along the slat hole, to judge that horizontal applied force that the back horizontal movement generates is less than or greatly
In the lateral extrusion stress of the scalable truss of sliding rail type.
7. the suspension device used in a kind of tunnel sliding rail type girders anchorage cable method for protecting support described in claim 1, feature
It is, including：
For two anchor cables being anchored at respectively in the two of back inclined drills；
Connect and be close to the scalable truss of sliding rail type of back surface setting respectively with the tail portion of two anchor cables；
Wherein, the scalable truss of sliding rail type is in Bracing Process, the water that can be generated according to back horizontal movement to it
The size of flat active force, by the way that the flexible of sliding rail type scalable truss is controlled to adjust the lateral extrusion of the scalable truss of sliding rail type
Stress makes horizontal applied force described in lateral extrusion stress equilibrium, to adapt to or inhibit the changing of the relative positions of back lateral extrusion or pine
Dynamic dilatation deformation.
8. suspension device according to claim 7, which is characterized in that the scalable truss of sliding rail type is hydraulic pressure sliding rail type
Scalable truss, including：
Outer rail, one end are connect with one in two anchor cables；
Internal rail, one end are inlaid in the sliding slot of the outer rail other end and can be moved relative to outer rail, the other end and another anchor cable
Connection；
The hydraulic jack being connected between the outer rail and internal rail；
Wherein, the hydraulic jack is arranged on inside the internal rail and outer rail, and its both ends respectively with the internal rail and outer rail
Mutually chimeric end is fixedly connected；
Wherein, the hydraulic jack controls stretching for the scalable truss of sliding rail type by driving the internal rail relative to outer rail movement
Contracting.
9. suspension device according to claim 8, which is characterized in that the internal rail is with outer rail respectively at its mutually separate end
Portion is equipped with the anchor cable hole of slat shape；The tail portion of two anchor cables respectively by the anchor cable hole of the slat shape and the internal rail and
Outer rail connects.
10. suspension device according to claim 9, which is characterized in that the outer rail be used to be embedded in the sliding slot of internal rail be in
" convex " font.
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| CN201711307701.XA CN108167004A (en) | 2017-12-11 | 2017-12-11 | A kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension device |
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| CN201711307701.XA CN108167004A (en) | 2017-12-11 | 2017-12-11 | A kind of tunnel sliding rail type girders anchorage cable method for protecting support and suspension device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441500A (en) * | 2018-10-22 | 2019-03-08 | 山东新阳能源有限公司 | A kind of girder truss advanced stand device and method for protecting support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798935A (en) * | 2010-01-21 | 2010-08-11 | 北京诚田恒业煤矿设备有限公司 | Transverse self-moving combined suspension hydraulic bracket |
| CN203066986U (en) * | 2013-01-16 | 2013-07-17 | 中国矿业大学 | Composite truss for supporting coal rock roadway top plate |
| CN104453964A (en) * | 2014-12-24 | 2015-03-25 | 中国矿业大学(北京) | Telescopic anchor cable truss device and method for supporting tunnel roof |
| CN104533483A (en) * | 2014-12-24 | 2015-04-22 | 中国矿业大学(北京) | Roadway total-space prestress truss, anchor cable and anchor rod coordinated supporting method |
| CN205955758U (en) * | 2016-08-10 | 2017-02-15 | 中国矿业大学(北京) | A anchor rope case roof beam truss structure for coal mine tunnel roof support |
-
2017
- 2017-12-11 CN CN201711307701.XA patent/CN108167004A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798935A (en) * | 2010-01-21 | 2010-08-11 | 北京诚田恒业煤矿设备有限公司 | Transverse self-moving combined suspension hydraulic bracket |
| CN203066986U (en) * | 2013-01-16 | 2013-07-17 | 中国矿业大学 | Composite truss for supporting coal rock roadway top plate |
| CN104453964A (en) * | 2014-12-24 | 2015-03-25 | 中国矿业大学(北京) | Telescopic anchor cable truss device and method for supporting tunnel roof |
| CN104533483A (en) * | 2014-12-24 | 2015-04-22 | 中国矿业大学(北京) | Roadway total-space prestress truss, anchor cable and anchor rod coordinated supporting method |
| CN205955758U (en) * | 2016-08-10 | 2017-02-15 | 中国矿业大学(北京) | A anchor rope case roof beam truss structure for coal mine tunnel roof support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441500A (en) * | 2018-10-22 | 2019-03-08 | 山东新阳能源有限公司 | A kind of girder truss advanced stand device and method for protecting support |
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