CN109098738A - A kind of heading two helps deformation hydraulic prop device and its implementation - Google Patents
A kind of heading two helps deformation hydraulic prop device and its implementation Download PDFInfo
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- CN109098738A CN109098738A CN201811101310.7A CN201811101310A CN109098738A CN 109098738 A CN109098738 A CN 109098738A CN 201811101310 A CN201811101310 A CN 201811101310A CN 109098738 A CN109098738 A CN 109098738A
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- piston rod
- transverse
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- 239000003245 coal Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 116
- 239000010959 steel Substances 0.000 claims description 116
- 239000011435 rock Substances 0.000 claims description 24
- 238000012544 monitoring process Methods 0.000 claims description 21
- 230000003139 buffering effect Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000003578 releasing effect Effects 0.000 claims 4
- 238000009412 basement excavation Methods 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 description 13
- 238000007373 indentation Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- QLMNCUHSDAGQGT-UHFFFAOYSA-N sintofen Chemical compound N1=C(C(O)=O)C(=O)C=2C(OCCOC)=CC=CC=2N1C1=CC=C(Cl)C=C1 QLMNCUHSDAGQGT-UHFFFAOYSA-N 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 235000013267 Pinus ponderosa Nutrition 0.000 description 1
- 241000555277 Pinus ponderosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/46—Telescopic props with load-measuring devices; with alarm devices
- E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
本发明公开了一种煤层巷道两帮变形液压支护装置及其实现方法，该装置包括竖向液压支柱，沿巷道的轴线对称布置；横向支柱，包括横向缸体、横向活塞杆和让压机构，所述横向缸体水平设置在所述竖向液压支柱的顶部，所述横向活塞杆对称设置在所述横向缸体的两侧，且所述横向活塞杆的外侧端分别与所述巷道的两帮相抵接，所述让压机构设置在所述横向活塞杆的内侧端与所述横向缸体之间，且用于根据所述巷道两帮变形量控制所述横向活塞杆向所述横向缸体移动进行让压。本发明提高了巷道的两帮的承载能力，防止巷道的大变形，可以及时的采取措施对巷帮进行控制加固，且本发明具备高强让压，安全，可靠的支护特性，具有良好的推广应用价值。
The invention discloses a hydraulic support device for deformation of two sides of a coal seam roadway and a method for realizing the same. The device includes a vertical hydraulic prop arranged symmetrically along the axis of the roadway; a transverse prop includes a transverse cylinder body, a transverse piston rod and a pressure relief mechanism , the horizontal cylinder is arranged horizontally on the top of the vertical hydraulic prop, the horizontal piston rods are symmetrically arranged on both sides of the horizontal cylinder, and the outer ends of the horizontal piston rods are respectively connected to the sides of the roadway The two sides abut against each other, and the pressure relief mechanism is arranged between the inner end of the transverse piston rod and the transverse cylinder, and is used to control the movement of the transverse piston rod to the transverse direction according to the deformation amount of the two sides of the roadway. The cylinder moves to give way. The invention improves the bearing capacity of the two sides of the roadway, prevents large deformation of the roadway, and can take timely measures to control and reinforce the side of the roadway, and the invention has high-strength yielding, safe and reliable support characteristics, and has good promotion Value.
Description
Technical field
The present invention relates to headings two to help deformed Control Technology field more particularly to a kind of heading two that deformation is helped to control
System monitoring hydraulic device and application method.
Background technique
In recent years, with the continuous intensification of coal mining depth, the stability problem of deep fractures roadway support at
For one of the main problem for restricting deep fractures safe working and technical economic benefit raising.Into after deep fractures exploitation,
Geological structure is complicated and changeable, and after by mining influence, heading rock deformation is big, the duration is long.If roadway support skill
Art is improper, and roadway deformation can be increasingly severe, eventually leads to tunnel and deforms unstability and destroy, the roadway surrounding rock pine after destruction
Moving-coil is larger, increases support cost and difficulty of construction when tunnel is overhauled.Side portion's supporting in deep fractures tunnel is as deep mining
Emphasis link, be related to the safe and efficient production of mine.It is mostly anchor rete cord branch in terms of traditional heading side portion's supporting
Shield, bolt-spary supports, anchor net unit support, these support technologies more or less suffer from certain limitation and deficiency.Upper
State support pattern supporting effect it is undesirable when, roadway's sides will appear wall caving, drum side phenomenon, and unstability occurs for roadway deformation, this
In the case of, scene mostly handles these accidents in modes such as portion of side complement pressure-relieving achor bar, anchor cables, but pressure-relieving achor bar, anchor cable are all
Increase resistance or constant-resistance and cannot actively realize variable resistance power with the deformation of country rock, tunnel portion of side remedies supporting in addition to the above institute at present
The pressure measure that allows is stated, is effectively allowed there are no other and presses auxiliary shoring mode.
In existing technology, for heading side portion's supporting aspect, a series of technological improvements have been carried out, such as: (1) in
State number of patent application CN201210389217.7 discloses a kind of device of coordinated control deformation of the surrounding rock in tunnel, which, which utilizes, encloses
Rock shifts near deformation to increase the supporting power to other positions of tunnel, and the counter-force to country rock at deformation itself can be improved, but should
Invention device hinge arrangement is more fragile, it is difficult to keep out tunnel roof and floor, two help generate pressure, be easily damaged；(2) China is special
Sharp application number 201711387082.X discloses a kind of tunnel U-shaped steel set canopy supporting construction, the invention using anchor cable+metal mesh+
Whitewashing+U-shaped steel covers canopy+grouting method for protecting support, which High-strength compression resistant and can moderately allow pressure, form ", it is hard and soft
The double-deck supporting construction of mutually Ji " greatly improves the stability and supporting intensity of broken soft rock roadway surrounding rock, ratio but it is constructed
More difficult, engineering is not easy to implement, and human and material resources cost is larger.
In existing technology, is allowed for hydraulic prop constant-resistance and press technical aspect, carried out a series of technological improvements, such as:
(1 Chinese Patent Application No. 201610952821.4 discloses a kind of compressible individual prop of adjustable constant-resistance of mechanical, the skill
Although there is art constant-resistance to allow pressure effect, there is also following defects, first is that unidirectional roof timbering can only be realized, can not help to two
Supporting；Laminate section is allowed second is that therein, and when overlying strata load is sufficiently large, failure by shear and plastic deformation can occur for steel ball ring, just
It is thoroughly ineffective, it is pressed in face of again, which, which cannot achieve, allows pressure to act on.It is known in the art that mine, which carrys out pressing element, the period
Property, it is pressed in face of periodic tunnel, which unquestionably cannot achieve and repeatedly allow pressure, so the technology is at present simultaneously
It has not seen and promotes on the market.(2) Chinese Patent Application No. 201510305951.4 discloses a kind of mechanical extending and permanent
Resistance can contract high-intensitive individual prop, although which can reach constant-resistance and allow the effect of pressure, but when movable post body is crushed shadow
It is moved downward when ringing, elastic sphere blocks the slide surface between movable post body and cylinder barrel and can not bounce back, and gives movable post body when crushing
When the active force of application is sufficiently large, elastic sphere can deform, and can not restore to the original state, just thoroughly ineffective, face top plate
Sink again, which cannot achieve constant-resistance and allow the effect of pressure.
Summary of the invention
In order to overcome existing two to help support technology is improper to cause roadway deformation that unstability, wall rock loosening occurs, to increase lane
The technological deficiency of support cost and difficulty of construction when road is overhauled, the present invention provide a kind of high-strength pressure, safely, reliable coal seam lane of allowing
Help deformation hydraulic prop device and realization method in road two.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of heading two helps deformation hydraulic prop device, which is characterized in that it includes vertical hydraulic prop and transverse direction
Pillar two large divisions, in which:
The vertical hydraulic prop, the axisymmetrical along tunnel arrange that it includes vertical cylinder body, vertical piston bar and bottom
Seat, pedestal are arranged on the ground in the tunnel, and one end of vertical cylinder body is connected with pedestal, and the other end is set in vertical work
On stopper rod.
The lateral struts, including lateral cylinder body, horizontal piston bar and allow press mechanism；The lateral cylinder body level is set
It sets at the top of vertical hydraulic prop；The horizontal piston bar is symmetricly set on the two sides of lateral cylinder body, and horizontal piston bar
Outboard end help to abut against with the two of tunnel respectively；The inner end for allowing press mechanism that horizontal piston bar is set and lateral cylinder body
Between, and allow press mechanism for being carried out according to roadway's sides Deformation control horizontal piston bar to the mobile amount of being deformed of lateral cylinder body
Allow pressure.
Further, described that press mechanism is allowed to include allowing press chamber, steel ball ring, interstage sleeve and high strong spring；The indentation chamber that allows
The outside both ends of lateral cylinder body are symmetrically provided with, and the opening of indentation chamber is allowed to be equipped with tapered surface；The steel ball ring is set in
The inner end outer surface of horizontal piston bar, the inner end of horizontal piston bar extend into allow and press in chamber；The interstage sleeve lid closes
It allows and presses on chamber, and be fixedly connected with lateral cylinder body；Wherein, steel ball ring includes the outside side side in inner end of transversely piston rod
To the first steel ball ring and the second steel ball ring being set side by side, the diameter of the first steel ball ring less than the second steel ball ring diameter, first
The outer surface of steel ball ring is abutted against with tapered surface, the outer surface of the second steel ball ring with allow indentation chamber inner surface match；It is described
Spring is placed in lateral cylinder interior, and the high-strength both ends of the spring is contacted with horizontal piston boom end, when the first steel ball ring and
Two steel ball rings are destroyed, and are lost when pressure being allowed to act on, and high-strength spring, which can play, secondary allows pressure protective effect.
Further, repeatedly allow pressure to realize, it is described allow press mechanism include cylinder allow pressure chamber, circle high strength steel plate,
Four high-strength springs and buffering, which allow, presses rubber washer；The outside both ends for allowing pressure chamber to be symmetrically provided with lateral cylinder body；Institute
Stating round high strength steel plate setting is making pressure intracavitary, and pressure can made intracavitary free to slide；The circle high strength steel plate includes two
Block high strength steel plate, from allowing pressure bottom of chamber portion (namely to help) to be referred to as the first round high strength steel plate and two round high-strength to two outward
Steel plate；Four high-strength springs are uniformly located between two high strength steel plates, it is desirable that high-strength spring one end is fixed on
One circle allows on laminated steel, and there are distances between the other end and the second round high strength steel plate；The buffering allows pressure rubber washer to set
It sets between two pieces of high strength steel plates, buffering allows pressure rubber washer both ends to withstand on two pieces of high strength steel plate end faces.
Further, buffering allows pressure rubber washer to be column or dumb-bell shape.
Further, the top of the vertical piston bar is connected through fixed mechanism with lateral cylinder body, and fixed mechanism includes
Upper fixing card and lower fixing card, upper fixing card and lower fixing card are fixedly connected by screw bolt and nut, wherein upper fixing card is under
Upper groove and lower groove are offered in fixing card respectively, the appearance of clamping transverse direction cylinder body after upper groove and lower groove mutually enclose
Face is equipped with fixing sleeve in the bottom of lower fixing card, and lower fixing card at the top of fixing sleeve and vertical piston bar by being fixedly connected.
Further, the diameter of the upper groove and lower groove is all larger than the outer diameter of lateral cylinder body.
Further, anti-down mechanism is additionally provided between the vertical hydraulic prop；The anti-down mechanism includes jack block, connects
Bar and two semicircle garter springs, two semicircle garter springs enclose the outer surface for being fastened on vertical cylinder body, the jack block setting
In the outside of semicircle garter spring, the both ends of the connecting rod are matched with two adjacent jack blocks respectively.
Further, the outboard end of the horizontal piston bar is helped to be in contact through baffle with the two of tunnel, and the baffle is circle
Shape steel disk.
Further, the lateral cylinder body is equipped with pressure monitoring alarm unit and laser range finder.
High strength steel plate of the invention is the high-strength steel sheet of crash-worthiness, such as Chinese Patent Application No. 2007800156253
Disclosed in high strength steel plate with high manganese.
The application method of suspension device provided by the invention comprising following steps:
The first step, after tunnelling, be laid with anchor net, at the country rock in tunnel install pressure-relieving achor bar and allow pressure anchor
Rope.
Step 2: installing vertical hydraulic prop and lateral struts, and vertical hydraulic prop is reinforced using anti-down mechanism；
Third step, when roadway's sides are deformed to centre, a point two ways allows pressure,
First way allows press mechanism to take steel ball ring structure, and horizontal piston bar bears the stress of roadway's sides at this time, has
The trend moved to non-country rock side, the first steel ball ring are moved with lateral cylinder body to non-country rock side, the first steel ball ring and allow indentation
The tapered surface mutual extrusion of chamber acts on, so that steel ball ring space is limited；When the two of tunnel helps stress to continue to increase, first
Steel ball ring deforms destruction, and at this time if horizontal piston bar continues to move to non-country rock side, the second steel ball ring makes horizontal piston
Bar is mobile to lateral cylinder body with constant operation resistance, and then reaches and preferably pressure is allowed to act on, when the second steel ball ring also deforms
When destruction, high-strength spring provides the secondary pressure that allows；
The second way, when press mechanism being allowed to take round high strength steel plate structure, horizontal piston bar bears answering for roadway's sides
Power, as lateral cylinder body is moved to non-country rock side, horizontal piston bar is contacted with the second high strength steel plate, and the second high strength steel plate is by crowded
Pressure effect, buffering allow pressure rubber washer to be compressed；When the two of tunnel help stress continue increase when, buffering allow pressure rubber washer by
Identical as high-strength spring length to being compressed to, the high-strength spring and the buffering allow pressure rubber washer jointly with constant work
Making resistance pushes the first high strength steel plate to the movement of lateral cylinder body, and then reaches and preferably pressure is allowed to act on；It helps come at the end of pressing when two,
High-strength spring and buffering allow pressure rubber washer that the second high-strength steel sheet is pushed to move to tunnel portion of side, to make to make press mechanism extensive
It has answered and pressure is allowed to act on, pressed to next portion of side, again serve to and pressure is allowed to act on；
Pressure value two is helped in 4th step, pressure monitoring alarm unit real-time monitoring tunnel, and laser range finder detects tunnel
Deformation, when horizontal piston bar exceeds maximum operation resistance, pressure monitoring alarm unit issues warning note.
The beneficial effects of the present invention are:
1) it, by lateral cylinder body, horizontal piston bar and allows press mechanism preferably to control the two of tunnel to help displacement, control lane
The further development of road wall caving, portion of side crack, improves the bearing capacity of roadway's sides, prevents the large deformation in tunnel, keeps out simultaneously
The pressure that tunnel roof and floor generates, provides safety assurance for roadway support.
2) it, is read by pressure monitoring alarm unit and laser range finder registration can react the deformation feelings in tunnel in time
Condition, when horizontal piston bar exceeds maximum operation resistance, pressure monitoring alarm unit will appear warning note, can timely adopt
It takes measure to carry out control reinforcing to lane side, deforms unstability to avoid the occurrence of tunnel and destroy, cause wall caving and pucking existing
As.
3), of the invention that pressure device is allowed to may be implemented repeatedly to allow pressure, periodic two can be defendd to help to press to side in this way
It is influenced caused by portion, the risk for making tunnel wreck substantially reduces, and reduces support cost and construction hardly possible when tunnel is overhauled
Degree has good application value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is the structural schematic diagram of apparatus of the present invention, shows in figure and allows the structure of press mechanism embodiment two；
Fig. 2 is layout drawing of the apparatus of the present invention in tunnel；
Fig. 3 is the structural schematic diagram for allowing press mechanism embodiment one of apparatus of the present invention；
Fig. 4 is that apparatus of the present invention allow the structural schematic diagram of press mechanism embodiment two；
Fig. 5 is the cylindrical left view for pressing chamber that allows in Fig. 4；
Fig. 6 is the structural schematic diagram of apparatus of the present invention fixed mechanism；
Fig. 7 is the main view for the anti-down mechanism that heading two of the invention helps Deformation control monitoring hydraulic device；
Fig. 8 is the top view for the anti-down mechanism that heading two of the invention helps Deformation control monitoring hydraulic device.
In figure:
The tunnel 1-；
The vertical hydraulic prop of 2-, the vertical cylinder body of 21-, 22- vertical piston bar, 23- pedestal；
3- lateral struts, 31- transverse direction cylinder body, 32- horizontal piston bar, 33- allow press mechanism, and 331- allows indentation chamber, 332- gear
Set, 333- tapered surface, the first steel ball ring of 334-, the second steel ball ring of 335-, the first high-strength spring of 336-；337- cylinder allows pressure
The round high strength steel plate of chamber, 338- first, the round high strength steel plate of 339- second, the second high-strength spring of 340-, 341- buffering allow pressure
Rubber washer；
4- fixed mechanism, the upper fixing card of 41-, fixing card under 42-, 43- bolt, 44- nut, 45- upper groove, 46- are recessed
Slot, 47- fixing sleeve；
The anti-down mechanism of 5-, 51- jack block, 52- connecting rod, 53- semicircle garter spring；
6- baffle；
7- pressure monitoring alarm unit；
8- laser range finder.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
Refering to fig. 1 shown in -2, heading two of the invention helps Deformation control to monitor hydraulic device comprising:
Vertical hydraulic prop 2, the axisymmetrical along tunnel 1 are arranged；
Lateral struts 3, including lateral cylinder body 31, horizontal piston bar 32 and allow press mechanism 33, lateral cylinder body 31 is horizontally disposed
At the top of vertical hydraulic prop 2, horizontal piston bar 32 is symmetricly set on the two sides of lateral cylinder body 31, and horizontal piston bar 32
Outboard end is helped to abut against with the two of tunnel 1 respectively, allows press mechanism 33 that inner end and the transverse direction cylinder body of horizontal piston bar 32 is arranged in
Between 31, and allow press mechanism 33 for according to 1 liang of tunnel side deformation amount controlling horizontal piston bar 31 to lateral cylinder body 31 move into
The capable pressure that allows.
Refering to Fig. 3, the present invention allows one structure of press mechanism embodiment to be: including allowing indentation chamber 331, steel ball ring, 332 and of interstage sleeve
First high-strength spring 336；It is described that indentation chamber 331 is allowed symmetrically to be provided with the outside both ends of lateral cylinder body 31, and allow and press chamber
331 opening is equipped with tapered surface；The steel ball ring is set in the inner end outer surface of horizontal piston bar 32, horizontal piston bar 32
Inner end extend into allow indentation chamber 331 in；The lid of interstage sleeve 332, which closes, to be allowed on indentation chamber 331, and solid with lateral cylinder body 31
Fixed connection；Wherein, steel ball ring includes inner end the first steel ball ring that extreme direction is set side by side outward of transversely piston rod 32
334 and second steel ball ring 335, the diameter of the first steel ball ring 334 less than the second steel ball ring 335 diameter, the first steel ball ring 334
Outer surface is abutted against with tapered surface, the outer surface of the second steel ball ring 335 with allow indentation chamber 331 inner surface match；Described
One high-strength spring 336 is placed in inside lateral cylinder body 31, and 336 both ends of the first high-strength spring connect with 31 end of the lateral body of rod
Touching loses when pressure being allowed to act on, first high-strength spring when first steel ball ring 334 and the second steel ball ring 335 are destroyed
336, which can play secondary allow, presses protective effect.
Fig. 4 and Fig. 5 is that the present invention allows the schematic diagram of laminated structure embodiment two, it can be seen from the figure that the press mechanism that allows
33 include that cylinder allows pressure chamber 337, round high strength steel plate, four second high-strength springs 340 and buffering rubber washer 341；Institute
State the cylindrical outside both ends for allowing pressure chamber 337 to be symmetrically provided with lateral cylinder body 31；The circle high strength steel plate is arranged in cylinder
Shape allow pressure chamber 337 in, and can cylinder allow pressure chamber 337 in it is free to slide；The circle high strength steel plate includes two pieces high-strength
Steel plate is spent, allows pressure 337 bottom of chamber (namely to help) to be referred to as the first round high strength steel plate 338 and the to two outward from cylinder
Two round high strength steel plates 339；Described four second high-strength springs 340 are uniformly located at the first round high strength steel plate 338 and the
Between two round high strength steel plates 339, it is desirable that 340 one end of the second high-strength spring is fixed on the first round high strength steel plate 338, separately
There are distances between one end and the second round high strength steel plate 339；The buffering makes the setting of pressure rubber washer 341 round high at two pieces
Between strong steel plate, 341 both ends of yielding rubber washer are withstood on two pieces of round high strength steel plate inner faces.Buffering shown in figure allows pressure
Rubber washer 341 is dumb-bell shape, can also be replaced with column.
Specifically, seeing Fig. 1, vertical hydraulic prop 2 includes vertical cylinder body 21, vertical piston bar 22 and pedestal 23, pedestal 23
It is arranged on the bottom plate in tunnel 1, one end of vertical cylinder body 21 is connected with pedestal 23, and the other end is set in vertical piston bar 22
On.It can change the height of lateral struts 3 by moving up and down for vertical piston bar 22, so as to change 1 liang of tunnel side
Supporting position.
Refering to fig. 1 and shown in Fig. 6, the top of vertical piston bar 22 is connected through fixed mechanism 4 with lateral cylinder body 31, fixed
Mechanism 4 includes upper fixing card 41 and lower fixing card 42, and upper fixing card 41 and lower fixing card 42 are fixed by bolt 43 and nut 44
Connection, wherein offer upper groove 45 and lower groove 46 in upper fixing card 41 and lower fixing card 42 respectively, upper groove 45 and recessed
The bottom of the outer surface of clamping transverse direction cylinder body 31 after slot 46 mutually encloses, lower fixing card 42 is equipped with fixing sleeve 47, lower fixing card 42
It is fixedly connected by fixing sleeve 47 with the top of vertical piston bar 22.
Preferably, the diameter of upper groove 45 and lower groove 46 is all larger than the outer diameter of lateral cylinder body 31.On can guaranteeing in this way
Fixing card 41 and lower fixing card 42 are capable of clamping and lock lateral cylinder body 31.
Refering to shown in Fig. 7-8, being additionally provided with anti-down mechanism 5 between vertical hydraulic prop 2, anti-down mechanism 5 include jack block 51,
Connecting rod 52 and two semicircle garter springs 53, two semicircle garter springs 53 enclose the outer surface for being fastened on vertical cylinder body 21, jack block
51 are arranged in the outside of semicircle garter spring 53, and the both ends of connecting rod 52 are matched with two adjacent jack blocks 51 respectively.The present invention
In, the shape of jack block 51 can be rectangle, circle etc., the shape of connecting rod 52 are as follows: " n " type etc..Pass through jack block 51, connecting rod 52
Adjacent two vertical hydraulic props 2 can be ined succession to one integrally with two semicircle garter springs 53, to play anti-down effect.
In the present invention, contact area is helped in order to increase the two of horizontal piston bar 32 and tunnel 1, raising is helped to the two of tunnel 1
Supporting effect, the outboard end of horizontal piston bar 32 helps to be in contact through baffle 6 with the two of tunnel 1, it is preferable that baffle 6 is circle
Steel disk or rectangle steel disk etc..
Preferably, lateral cylinder body 32 be equipped with pressure monitoring alarm unit 7 and laser range finder 8.Pressure monitoring alarm
The two of 7 real-time monitoring tunnel 1 of unit help pressure value, and when horizontal piston bar 32 exceeds maximum operation resistance, issue alarm and mention
Show.Laser range finder 8 helps deformation for detecting the two of tunnel 1.
The application method of suspension device of the present invention comprising following steps:
Step 1: being laid with anchor net after tunnel 1 is tunneled, pressure-relieving achor bar is installed at the country rock in tunnel 1 and is allowed and presses anchor
Rope.
Second step, the vertical hydraulic prop 2 of installation and lateral struts 3, and vertical hydraulic prop 2 is reinforced using anti-down mechanism 5；
Vertical hydraulic prop 2 is installed in design position first, adjacent two vertical hydraulic props 2 are ined succession by anti-down mechanism one whole
Body plays anti-down effect, is then connect by fixing sleeve 47 with lower fixing card 42 in vertical hydraulic prop upper end, then will be horizontal
It is placed in lower 42 lower groove 46 of fixing card to pillar 3, then by upper 41 upper groove 45 of fixing card and 3 clamping of lateral struts, most
Lower fixing card 42, lateral struts 3, upper fixing card 41 are fixedly connected with nut 44 by bolt 43 afterwards.
Third step, when 1 liang of tunnel is helped to be deformed to centre, the press mechanism 33 that allows of embodiment one allows the press reason to be: horizontal
The stress of the 1 liang of side in tunnel is born to piston rod 32, the trend of oriented non-country rock side movement, the first steel ball ring 334 is with lateral cylinder
Body 31 is moved to non-country rock side, the first steel ball ring 334 with allow 333 mutual extrusion of tapered surface of indentation chamber 331 to act on so that steel ball
Ring space is limited；When the two of tunnel 1 helps stress to continue to increase, the first steel ball ring 334 deforms destruction, at this time if
Horizontal piston bar 32 continues to move to non-country rock side, and the second steel ball ring 335 makes horizontal piston bar 32 with constant operation resistance to cross
It is mobile to cylinder body 31, and then reach and preferably pressure is allowed to act on, when the second steel ball ring 335, which also deforms, to be destroyed, first is high-strength
Degree spring 336 provides the secondary pressure that allows；
When 1 liang of tunnel is helped to be deformed to centre, the press mechanism 33 that allows of embodiment two allows the press reason to be:, horizontal piston
Bar bears the stress of roadway's sides, and the trend of oriented non-country rock side movement is lateral as lateral cylinder body 31 is moved to non-country rock side
Piston rod 32 is contacted with the second high-strength steel sheet 339, and the second high-strength steel sheet high-strength steel sheet is squeezed effect, and buffering allows pressure
Rubber washer 341 is compressed；When the two of tunnel 1 helps stress to continue to increase, buffering allows pressure rubber washer 341 to be compressed to
Identical as 340 length of the second high-strength spring, the second high-strength spring 340 and the buffering allow pressure rubber washer 341 to push the
One round high strength steel plate 338 is jointly mobile to lateral cylinder body 31 with constant operation resistance, and then reaches and preferably pressure is allowed to act on；When
Two help come at the end of pressing, the second high-strength spring 340 and buffering allow pressure rubber washer 341 push the second high-strength steel sheet 339 to
1 portion of side of tunnel moves, to make that press mechanism 33 is allowed to have restored that pressure is allowed to act on, presses to next portion of side, again serves to and pressure is allowed to act on；
Pressure value two is helped in 4th step, 7 real-time monitoring tunnel 1 of pressure monitoring alarm unit, and laser range finder 8 detects tunnel
1 deformation, when horizontal piston bar 32 exceeds maximum operation resistance, pressure monitoring alarm unit 7 issues warning note.
The present invention has the advantages that
1) it, by lateral cylinder body 31, horizontal piston bar 32 and allows press mechanism 33 preferably to control the two of tunnel 1 to help to be displaced
Amount, controls 1 wall caving of tunnel, and the further development in portion of side crack improves two bearing capacitys helped in tunnel 1, prevents the big of tunnel 1
Deformation.
2) deformation in tunnel 1 can, be reacted in time by the reading of pressure monitoring alarm unit 7 and 8 registration of laser range finder
Situation, when horizontal piston bar 32 exceed maximum operation resistance when, pressure monitoring alarm unit 7 will appear warning note, can and
When take measures help to carry out control reinforcing to the two of tunnel.
3), have the high-strength pressure, safely, reliable supporting characteristic, with good application value of allowing.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should be covered by the protection scope of the present invention.Therefore, protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811101310.7A CN109098738B (en) | 2018-09-20 | 2018-09-20 | A hydraulic support device for deformation of two sides of coal seam roadway and its realization method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811101310.7A CN109098738B (en) | 2018-09-20 | 2018-09-20 | A hydraulic support device for deformation of two sides of coal seam roadway and its realization method |
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| CN109098738A true CN109098738A (en) | 2018-12-28 |
| CN109098738B CN109098738B (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| Publication number | Publication date |
|---|---|
| CN109098738B (en) | 2019-10-22 |
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