CN104763456A - Coal mining adit ending roadway or dead region supporting support and hydraulic support withdrawing method - Google Patents
Coal mining adit ending roadway or dead region supporting support and hydraulic support withdrawing method Download PDFInfo
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- CN104763456A CN104763456A CN201510117778.5A CN201510117778A CN104763456A CN 104763456 A CN104763456 A CN 104763456A CN 201510117778 A CN201510117778 A CN 201510117778A CN 104763456 A CN104763456 A CN 104763456A
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- 238000005065 mining Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000003245 coal Substances 0.000 title claims abstract description 46
- 239000002023 wood Substances 0.000 claims description 65
- 241000219422 Urtica Species 0.000 claims description 14
- 235000009108 Urtica dioica Nutrition 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 241001669679 Eleotris Species 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- OSKIPPQETUTOMW-YHLOVPAPSA-N N-[(2R,3R,4R,5S,6R)-5-[(2S,3R,4R,5S,6R)-3-Acetamido-5-[(2R,3S,4S,5R,6R)-4-[(2R,3S,4S,5S,6R)-3-[(2S,3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[[(2S,3S,4S,5R,6R)-6-[[(2S,3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,5-dihydroxy-4-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,5-dihydroxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide Chemical compound O[C@@H]1[C@@H](NC(=O)C)[C@H](O)O[C@H](CO)[C@H]1O[C@H]1[C@H](NC(C)=O)[C@@H](O)[C@H](O[C@@H]2[C@H]([C@@H](O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)[C@H](O)[C@@H](CO[C@@H]3[C@H]([C@@H](O[C@@H]4[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O4)O)[C@H](O)[C@@H](CO[C@@H]4[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O4)O[C@@H]4[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O4)O)O3)O)O2)O)[C@@H](CO)O1 OSKIPPQETUTOMW-YHLOVPAPSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000011800 void material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a coal mining adit ending roadway or dead region supporting support and a hydraulic support withdrawing method and discloses a coal mining adit ending roadway supporting support. The support comprises a plurality of hydraulic supports which are arranged in an ending roadway or a dead region for supporting the ending roadway or dead region roofs. The hydraulic supports are close to one side of an ending roadway caving region and are vertically and parallelly arranged on the back goaf coal wall side arranged in the ending roadway or the dead region. A plurality of rows of hydraulic single props are further arranged in the ending roadway and are arranged along the ending roadway vertically and form a withdraw channel with one side coal wall of the ending roadway, which is away from the hydraulic supports, and the tops of the hydraulic single props support the roadway air channel. The invention further discloses a coal mining adit supporting support hydraulic support withdrawing method. By means of the supporting support and the method, recyclable support material hydraulic supports and hydraulic single props are withdrawn, and accordingly, the hydraulic support safety withdrawing is guaranteed, and potential safety hazards of withdrawing of the hydraulic supports are prevented.
Description
Technical field
The invention belongs to coal mining field, more particularly, the present invention relates to a kind of tunnel of mining and be incorporated as lane or the supporting bracket in district of making the return trip empty and withdraw coal mining tunnel and be incorporated as lane or the method for the hydraulic support of the supporting bracket in district of making the return trip empty.
Background technology
At the end of fully-mechanized coalface back production, adopting empty being incorporated as lane or making the return trip empty in district, have a large amount of for supporting the hydraulic support being incorporated as lane or withdrawing operation area top board, hydraulic support is that a kind of fluid pressure generation support force that utilizes also realizes automatically moving a kind of hydraulic power unit of establishing to carry out roof timbering and management, it is the indispensable corollary equipment of comprehensive mechanical coal mining, the longwall full-mechanized mining technique work plane that the gently inclined thick coal seam that hydraulic support is mainly used in horizontal plane and is less than or equal to 20 degree is exploited along base plate Sub-Level Caving mining full height, also severe inclined thick coal seam horizontal slice caving fully mechanized face is applicable to, traditional withdraw way withdraws for being caving formula, this process is incorporated as rib side, lane, wood point post adds the method for grillage, supporting is carried out to being incorporated as lane, to guarantee the safe space retained near rib side between a 1.0 ~ 1.6m, as the pedestrian and the vent passages that withdraw period, when mine timber supporting withdraws, often produce the empty top-hung pressure of large area, and pressure undue concentration phenomenon, the netting moment that easy build-up of pressure discharges suddenly, causes laying is by the potential safety hazard of being cut off paving and falling, the Main Function of this process wood point post is that temporary transient supporting is made the return trip empty well the top board in district, and prevent top board from supporting because losing and be caving, bury and treat back hydraulic support, cause follow-up hydraulic support withdrawing difficulty, the employing of prior art wood point post is not less than
round log, wood point post supports and is incorporated as air channel, lane top board and void top that the district nettle of making the return trip empty is laid, after hydraulic support withdrawing terminates, is incorporated as lane and some spar material, grillage etc. that district of making the return trip empty is used all do not reclaim, district of making the return trip empty after hydraulic support is removed out, take the grillage of alternating expression point post goodness of fit spacing, support lapping wire rope, for withdrawing of next hydraulic support creates good safe space, due to the backing material that timber is a kind of half soft half steel, as fruit dot post is beaten not in time, the void top in district of making the return trip empty effectively is not supported, and can be caving very soon, making the return trip empty, to support the wood point post hardness of netting different in district, angle differs, therefore stressed degree can not be the same, so withdraw in process at each work plane, occurring with disconnected rope phenomenon all in various degree, major hidden danger is brought to trouble free service, when reaching certain span, large-area void top and old power station, brace point post under nettle is under the effect of roof Stress, can break disconnected with a loud crash, tear, roof pressure is discharged, spoil is shaken off, serious potential safety hazard is brought to the work that withdraws of coal mining tunnel comprehensive mining hydraulic bracket, and then bring larger economic materials to waste and exploitation losses to mining industry.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of guarantee fully-mechanized mining working surface hydraulic support and withdraws safely, and the coal mining tunnel of potential safety hazard is incorporated as lane or the supporting bracket in district of making the return trip empty to avoid hydraulic support withdrawing to occur.
The invention also discloses and withdraw coal mining tunnel and be incorporated as lane or the method for the hydraulic support of the supporting bracket in district of making the return trip empty.
To achieve these goals, the technical scheme that the present invention takes for: a kind of tunnel of mining provided is incorporated as lane or the supporting bracket in district of making the return trip empty, comprise and be incorporated as lane or the multiple stage of district's arrangement of making the return trip empty is incorporated as lane for supporting or returns the hydraulic support of dead zone top plate, wherein hydraulic support is caving side, district near being incorporated as lane, hydraulic support is vertically placed in and is incorporated as lane and after the frame that district has of making the return trip empty, old man's rib side is set up in parallel, the described lane that is incorporated as also is provided with multirow hydraulic single prop, hydraulic single prop vertically along be incorporated as lane arrangement be incorporated as that lane has form return channel away from rib side, hydraulic support side, the top braces of hydraulic single prop is incorporated as air channel, lane top board.
A kind of tunnel of mining disclosed by the invention is incorporated as lane or the supporting bracket in district of making the return trip empty, hydraulic support is caving side, district is also set side by side with first hydraulic support vertical with hydraulic support and the second hydraulic support near being incorporated as lane, the first described hydraulic support and the second hydraulic support be arranged on withdraw hydraulic support column to back timber place.
A kind of tunnel of mining disclosed by the invention is incorporated as lane or the supporting bracket in district of making the return trip empty, and hydraulic support is caving district and side, district of making the return trip empty is provided with the many staggered multiple row hydraulic single props of transverse direction near being incorporated as lane; Wherein often row laterally staggered hydraulic single prop be 5, staggered hydraulic single prop is each passed through the middle part of the wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support.
A kind of tunnel of mining disclosed by the invention is incorporated as lane or the supporting bracket in district of making the return trip empty, return channel distributes along rib side the above hydraulic single prop of two row, the top of hydraulic single prop is connected wood chip, and the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has; A line hydraulic single prop or expendable wood point post can also be arranged between two described row hydraulic single props.
A kind of tunnel of mining disclosed by the invention is incorporated as lane or the supporting bracket in district of making the return trip empty, and hydraulic single prop and anchor rope supporting plate are for removably connecting; Wherein the spacing of adjacent hydraulic single prop is consistent with cable interval; Return channel is also provided with gear bastard coal net near side, district of making the return trip empty.
A kind of tunnel of mining disclosed by the invention is incorporated as lane or the supporting bracket in district of making the return trip empty, and return channel is also provided with ventilation fan, and ventilation fan air duct stretches into work plane and withdraws operating area.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
1) along be incorporated as lane or hydraulic single prop that the district's hydraulic support that makes the return trip empty arranges more than two row away from old man side after frame with form return channel away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(2) hydraulic support is often withdrawn out by return channel, after frame, old man lateral is incorporated as lane and is caving district and district of making the return trip empty squeezes into the staggered hydraulic single prop of row many transverse directions, general employing 5 hydraulic single props are staggered, staggered hydraulic single prop is each passed through the middle part of wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support;
(3), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
(1) first withdraw out a supporting bracket, adjustment direction, make it and cut a direction to be substantially consistent; Rise hydraulic support roof supporting, as the first hydraulic support;
After (2) first hydraulic supports have supported top board, the lapping rope in district of making the return trip empty is got ready post and reinforce, then start to withdraw the second hydraulic support;
After (3) second hydraulic supports withdraw out, back timber stretches into below the first hydraulic support, and tail boom uses out frame to twist slowly or hydraulic single prop is drawn passing, makes its distance treat back hydraulic support 1m, has supported tail boom rear portion top board with grillage; Under the wire rope treating back comprehensive mining hydraulic bracket frame limit 0.5m, every root rope is each makes a call to a wood point post, then withdraws hydraulic support;
(4), after hydraulic support is withdrawn from, to making the return trip empty, post supporting got ready by the wire rope of district's column to tail boom position; Then adjust the second hydraulic support, make it and to cut a direction basically identical, the inboard safe edge of the second hydraulic support is near treating go back to hydraulic support column place;
(5) second hydraulic supports are adjusted, and rise roof supporting, fall the first hydraulic support, adjusted to by the first hydraulic support and the second hydraulic support parallel position, roof supporting; Along being incorporated as the hydraulic single prop roof supporting of more than lane stationary arrangement two row and forming return channel with away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(6), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery.
The invention discloses a kind of method withdrawing coal mining tunnel supporting bracket hydraulic support, before withdrawing hydraulic support, frame noseplate is crouched smooth.
The invention discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, before withdrawing hydraulic support, frame noseplate is crouched smooth; Described often withdraws out a hydraulic support, with hydraulic single prop firm supporting hydraulic support to straight return channel top board, moves the first hydraulic support and the second hydraulic support then, firmly supports back dead zone top plate; Often withdraw a hydraulic support along return channel, the first hydraulic support and the second hydraulic support move forward a frame distance.
The invention discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, in hydraulic support withdrawing process, there is the outstanding top of more than 15m in roof caving, at the hydraulic single prop away from return channel side under the nettle of the section that makes the return trip empty, adopt recovery wood point post to add and make a call to a grillage.
A kind of coal mining tunnel disclosed by the invention is incorporated as lane supporting bracket, comprise and be incorporated as lane or the multiple stage of district's arrangement of making the return trip empty is incorporated as lane for supporting or returns the hydraulic support of dead zone top plate, wherein hydraulic support is caving side, district near being incorporated as lane, hydraulic support is vertically placed in and is incorporated as lane and after the frame that district has of making the return trip empty, old man's rib side is set up in parallel, the described lane that is incorporated as also is provided with multirow hydraulic single prop, hydraulic single prop vertically along be incorporated as lane arrangement be incorporated as that lane has form return channel away from rib side, hydraulic support side, the top braces of hydraulic single prop is incorporated as air channel, lane top board, adopt technical scheme of the present invention, coal mining tunnel adopts multiple hydraulic single prop to replace the wood point post of prior art, change tradition and be caving disposable a large amount of consumption round log support materials in formula withdrawing technique, support material hydraulic support capable of circulation and hydraulic single prop is utilized to withdraw, ensure that hydraulic support withdraws safely, hydraulic support withdrawing is avoided to occur potential safety hazard, use hydraulic single prop that is recyclable, that can recycle, replace air channel brace point post, support and be incorporated as air channel, lane top board, after a complete set of hydraulic support of work plane is removed, the hydraulic single prop of air channel hydraulic single prop and the district's movable support that makes the return trip empty all reclaims, along with constantly withdrawing of hydraulic support, the false top board that the nettle making the return trip empty district is laid sinks slowly thereupon, avoid prior art to be caving in formula withdrawing technique and occur that top board is pressed suddenly, shake the defect in make the return trip empty district and air channel off, add to adopt and empty be incorporated as lane or the safety of the district's hydraulic support withdrawing that makes the return trip empty, meanwhile, adopt and thisly withdraw method, greatly can save and be caving wood point post in formula withdrawing technique and support the diameter caused and be greater than
the consumption of round log, bring considerable economic benefit.
Work plane is adopted to be set up in parallel the first hydraulic support and the second hydraulic support, the portable supporting in the district that carries out making the return trip empty; Owing to have employed the first hydraulic support and the second hydraulic support supports back dead zone top plate, treat back that the security reliability of hydraulic support operation area is greatly improved; First hydraulic support and the second hydraulic support also constantly on move, add to adopt and empty be incorporated as lane or the safety of the district's hydraulic support withdrawing that makes the return trip empty.
Hydraulic support is caving district and side, district of making the return trip empty is provided with the many staggered multiple row hydraulic single props of transverse direction near being incorporated as lane; Wherein often the horizontal staggered hydraulic single prop of row is 5, staggered hydraulic single prop is each passed through the middle part of the wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support, what occur after reinforcing hydraulic support withdrawing with staggered hydraulic single prop is caving region, avoid occurring that top board is pressed suddenly, shake the defect in make the return trip empty district and air channel off, add to adopt and empty be incorporated as lane or the safety of the district's hydraulic support withdrawing that makes the return trip empty.
Return channel distributes along rib side the above hydraulic single prop of two row, and the top of hydraulic single prop is connected wood chip, and the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has, a line hydraulic single prop or expendable wood point post can also be arranged between two described row hydraulic single props, wherein the spacing of adjacent hydraulic single prop is consistent with cable interval, brute force is supported on below anchor rope supporting plate, the firm roof supporting of every root hydraulic single prop, reach setting load, top board is avoided to press suddenly, add safety, in order to reach stronger support force, a line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props, expendable wood point post is the recycling of the wood point post of on-the-spot waste and old recovery, timber is a kind of backing material of half soft half steel, the effect that hydraulic single prop plays buffering can be pressed down to the roof caving in district of making the return trip empty, avoid excessive impact force to the damage of hydraulic single prop, simultaneously, effectively make use of the on-the-spot wood that reclaims and put post, the top of hydraulic single prop is connected wood chip, the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has, hydraulic single prop and anchor rope supporting plate are for removably connecting, return channel work plane is also provided with gear bastard coal net near inboard, district of making the return trip empty, anchor net is coordinated to isolate hydraulic single prop and the spoil that paving falls, prevent spoil from tumbling damage hydraulic single prop, ensure that work plane all hydraulic individual prop is harmless and reclaim.
Hydraulic single prop and anchor rope supporting plate are for removably connecting; Wherein the spacing of adjacent hydraulic single prop is consistent with cable interval, and it is the protective measure that hydraulic single prop is taked that hydraulic single prop is connected with anchor rope supporting plate, and every root hydraulic single prop all must use 8# iron wire and anchor rope supporting plate is affixed carries out second protection.
Return channel is also provided with ventilation fan, and ventilation fan air duct extend into work plane and withdraws operating area, strengthens the ventilation being incorporated as lane, ensures the safety of the work that withdraws.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
(1) along be incorporated as lane or hydraulic single prop that the district's hydraulic support that makes the return trip empty arranges more than two row away from old man side after frame with form return channel away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(2) hydraulic support is often withdrawn out by return channel, after frame, old man lateral is incorporated as lane and is caving district and district of making the return trip empty squeezes into the staggered hydraulic single prop of row many transverse directions, general employing 5 hydraulic single props are staggered, staggered hydraulic single prop is each passed through the middle part of wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support;
(3), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery.
Adopt technical scheme of the present invention, for the coal mining tunnel using small-sized hydraulic support, during hydraulic support withdrawing, in the region withdrawing from hydraulic support, adopt old man lateral after frame to be incorporated as lane and be caving lane or district of making the return trip empty is laterally staggered squeezes into 5 hydraulic single props and be staggered, the mode at middle part that staggered hydraulic single prop is each passed through the wood point post that accumbency is placed carries out supporting, and technique is simple, ensure that to adopt empty to be incorporated as lane or the safety of the district's hydraulic support withdrawing that makes the return trip empty simultaneously.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
(1) first withdraw out a supporting bracket, adjustment direction, make it and cut a direction to be substantially consistent; Rise hydraulic support roof supporting, as the first hydraulic support;
After (2) first hydraulic supports have supported top board, the lapping rope in district of making the return trip empty is got ready post and reinforce, then start to withdraw the second hydraulic support;
After (3) second hydraulic supports withdraw out, back timber stretches into below the first hydraulic support, and tail boom uses out frame to twist slowly or hydraulic single prop is drawn passing, makes its distance treat back hydraulic support 1m, has supported tail boom rear portion top board with grillage; Under the wire rope treating back comprehensive mining hydraulic bracket frame limit 0.5m, every root rope is each makes a call to a wood point post, then withdraws hydraulic support;
(4), after hydraulic support is withdrawn from, to making the return trip empty, post supporting got ready by the wire rope of district's column to tail boom position; Then adjust the second hydraulic support, make it and to cut a direction basically identical, the inboard safe edge of the second hydraulic support is near treating go back to hydraulic support column place;
(5) second hydraulic supports are adjusted, and rise roof supporting, fall the first hydraulic support, adjusted to by the first hydraulic support and the second hydraulic support parallel position, roof supporting; Along being incorporated as the hydraulic single prop roof supporting of more than lane stationary arrangement two row and forming return channel with away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(6), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery, adopt technical scheme of the present invention, change traditional timber to support and be slowly caving formula and withdraw as without mine timber supporting, utilize hydraulic support capable of circulation and hydraulic single prop support material movable support to make the return trip empty district, reduce disposable consumption round log support material, saved cost of production, ensure that hydraulic support withdraws safely, avoid hydraulic support withdrawing to occur potential safety hazard, overcome and reach certain span, large-area void top and old power station, brace point post under nettle is under the effect of roof Stress, can break disconnected with a loud crash, tear, roof pressure is discharged, spoil is shaken off, the defect of serious potential safety hazard is brought to the work that withdraws of coal mining tunnel comprehensive mining hydraulic bracket, when implementing without mine timber remove technology simultaneously, remove the method that wood point post adds grillage from and manually lift fortune timber, cross cut saw timber, beat air channel point post, knit a net the lower post of rope, cut net release of pressure, beat the operations such as grillage, greatly improve and withdraw progress, improve productivity effect, reduce cost of production, reduce labour intensity, work plane all hydraulic rack restoring out after, hydraulic single prop carries out manual recovery, when reclaiming hydraulic single prop, use long handle release hand to hydraulic single prop release, confirm that hydraulic single prop and anchor rope supporting plate depart from completely, anchor rope supporting plate can not avalanche generation inbreak time, adopt hydraulic single prop shipped off-site manually.
Before withdrawing hydraulic support, crouch smooth by frame noseplate, when avoiding support to withdraw from tuning, base plate out-of-flatness, the poor flatness because of base plate causes support crooked, ensures the safety of equipment.
Often withdraw out a hydraulic support, with hydraulic single prop firm supporting hydraulic support to straight return channel top board, then, move the first hydraulic support and the second hydraulic support, firmly support back dead zone top plate; A hydraulic support is often withdrawn along return channel, first hydraulic support and the second hydraulic support move forward a frame distance, and support assorted twists traction slowly, moves on interlaced, support lapping wire rope, for withdrawing of next hydraulic support provides safe and reliable working space; After often withdrawing out a hydraulic support, use hydraulic single prop firm supporting support to straight return channel top board in time, move hydraulic support then, firmly support back dead zone top plate; When using hydraulic single prop to support nettle, waste and old sleeper or timber wedge and nettle holder is used to connect above monomer, sleeper or timber wedge is vertical with wire rope props up, when there is wire lath fracture phenomena, sleeper or timber wedge are put steel mesh reinforcement or discarded spillplate, make it closely protect top board, avoid occurring leaking cash, ensure the handling safety withdrawing region.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this manual and the mark in figure are briefly described:
Fig. 1 is that a kind of tunnel of mining of the present invention is incorporated as lane or the schematic diagram of the supporting bracket embodiment 1 in district of making the return trip empty;
Fig. 2 is that a kind of tunnel of mining of the present invention is incorporated as lane or the schematic diagram of the supporting bracket embodiment 2 in district of making the return trip empty.
Be labeled as in figure: 1, hydraulic support; 2, hydraulic single prop; 3, away from rib side, hydraulic support side; 4, the first hydraulic support; 5, the second hydraulic support; 6, to make the return trip empty district; 7, return channel; 8, old man after frame; 9, staggered hydraulic single prop.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, to the specific embodiment of the present invention as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operating principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Embodiment 1
Fig. 1 is that a kind of tunnel of mining of the present invention is incorporated as lane or the schematic diagram of the supporting bracket embodiment 1 in district of making the return trip empty, a kind of tunnel of mining of the present invention is as shown in the figure incorporated as lane or the supporting bracket in district of making the return trip empty, comprise and be incorporated as lane or the multiple stage of district's arrangement of making the return trip empty is incorporated as lane for supporting or returns the hydraulic support 1 of dead zone top plate, wherein hydraulic support 1 is caving side, district near being incorporated as lane, hydraulic support 1 is vertically placed in and is incorporated as lane and after the frame that district has of making the return trip empty, old man 8 rib side is set up in parallel, be incorporated as lane and be also provided with multirow hydraulic single prop 2, hydraulic single prop 2 vertically along be incorporated as lane arrangement be incorporated as that lane has form return channel 7 away from rib side, hydraulic support 1 side, the top braces of hydraulic single prop 2 is incorporated as air channel, lane top board, hydraulic support 1 near be incorporated as lane be caving side, district be also set side by side with first hydraulic support 4 vertical with hydraulic support 1 and the second hydraulic support 5, first hydraulic support 4 and the second hydraulic support 5 be arranged on withdraw hydraulic support 1 column to back timber place, return channel 7 distributes along rib side the above hydraulic single prop 2 of two row, and the top of hydraulic single prop 2 is connected wood chip, and the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has, a line hydraulic single prop 2 or expendable wood point post can also be arranged between two row hydraulic single props 2, hydraulic single prop 2 and anchor rope supporting plate are for removably connecting, wherein the spacing of adjacent hydraulic single prop 2 is consistent with cable interval, hydraulic single prop 2 and anchor rope supporting plate are for removably connecting, wherein the spacing of adjacent hydraulic single prop 2 is consistent with cable interval, return channel 7 is also provided with gear bastard coal net near side, district of making the return trip empty, return channel 7 is also provided with ventilation fan, and ventilation fan air duct stretches into the fence place being incorporated as lane and having.
Adopt technical scheme of the present invention, coal mining tunnel adopts multiple hydraulic single prop to replace the wood point post of prior art, change tradition and be caving a large amount of round log support material of disposable consumption in formula withdrawing technique, for using mine timber supporting on a small quantity, support material hydraulic single prop 2 capable of circulation is utilized to withdraw, ensure that hydraulic support 1 withdraws safely, avoid hydraulic support 1 to withdraw and occur potential safety hazard; Use hydraulic single prop 2 that is recyclable, that can recycle, replace air channel brace point post, support and be incorporated as air channel, lane top board; Work plane is adopted to be set up in parallel the first hydraulic support 4 and the second hydraulic support 5, the portable supporting in the district that carries out making the return trip empty; After a complete set of hydraulic support 1 of work plane is removed, the hydraulic single prop 2 of air channel hydraulic single prop 2 and the district's movable support that makes the return trip empty all reclaims; Owing to have employed the first hydraulic support 4 and the second hydraulic support 5 supports back dead zone top plate, treat back that the security reliability of hydraulic support 1 operation area is greatly improved; Along with constantly withdrawing of hydraulic support 1, first hydraulic support 4 and the second hydraulic support 5 also constantly on move, the false top board that the nettle making the return trip empty district is laid sinks slowly thereupon, avoid prior art to be caving in formula withdrawing technique and occur that top board is pressed suddenly, shake the defect in make the return trip empty district and air channel off, add to adopt and empty be incorporated as lane or safety that the district's hydraulic support 1 that makes the return trip empty withdraws; Meanwhile, adopt and thisly withdraw method, greatly can save and be caving wood point post in formula withdrawing technique and support the diameter caused and be greater than
the consumption of round log, bring considerable economic benefit.
Return channel 7 work plane top is also provided with spillplate, coordinates anchor net to isolate hydraulic single prop 2 and the spoil that paving falls, and prevents spoil from tumbling and damages hydraulic single prop 2, ensures that work plane all hydraulic individual prop 2 is harmless and reclaims; Return channel 7 distributes along rib side two row hydraulic single props, a row wood point post is arranged between two row hydraulic single props 2, the top of hydraulic single prop 2 is connected wood chip, the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has, and hydraulic single prop 2 and anchor rope supporting plate are for removably connecting; Wherein the spacing of adjacent hydraulic single prop 2 is consistent with cable interval, and brute force is supported on below anchor rope supporting plate, and every root hydraulic single prop 2 is roof supporting firmly, reaches setting load, avoids top board to press suddenly, add safety.
Hydraulic single prop 2 and anchor rope supporting plate are for removably connecting; Wherein the spacing of adjacent hydraulic single prop 2 is consistent with cable interval; it is the protective measure that hydraulic single prop 2 is taked that hydraulic single prop 2 is connected with anchor rope supporting plate, and every root hydraulic single prop 2 all must use 8# iron wire and anchor rope supporting plate is affixed carries out second protection.
Return channel 7 is also provided with ventilation fan, and ventilation fan air duct extend into work plane and withdraws operating area, strengthens the ventilation being incorporated as lane, ensures the safety of the work that withdraws.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
(1) first withdraw out a supporting bracket, adjustment direction, make it and cut a direction to be substantially consistent; Rise hydraulic support roof supporting, as the first hydraulic support 4;
After (2) first hydraulic supports 4 have supported top board, the lapping rope in district of making the return trip empty is got ready post and reinforce, then start to withdraw the second hydraulic support 5;
After (3) second hydraulic supports 5 withdraw out, back timber stretches into below the first hydraulic support 4, tail boom uses out frame to twist slowly or hydraulic single prop 2 is drawn passing, makes its distance treat back hydraulic support 1m, has supported tail boom rear portion top board with grillage; Under the wire rope treating back hydraulic support 1 frame limit 0.5m, every root rope is each makes a call to a wood point post, then withdraws hydraulic support 1;
(4), after hydraulic support 1 is withdrawn from, to making the return trip empty, post supporting got ready by the wire rope of district's column to tail boom position; Then adjust the second hydraulic support 5, make it and to cut a direction basically identical, the inboard safe edge of the second hydraulic support 5 is near treating go back to hydraulic support 1 column place;
(5) second hydraulic supports 5 are adjusted, and rise roof supporting, fall the first hydraulic support 4, adjusted to by the first hydraulic support 4 and the second hydraulic support 5 parallel position, roof supporting; Along being incorporated as hydraulic single prop 2 roof supporting of more than lane stationary arrangement two row and forming return channel 7 with away from rib side, hydraulic support side, hydraulic single prop 2 is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop 2 is incorporated as air channel, lane top board; A line hydraulic single prop 2 or expendable wood point post can also be arranged between two row hydraulic single props 2;
(6), after work plane all hydraulic support 1 withdraws, hydraulic single prop 2 carries out manual recovery.
Before withdrawing hydraulic support, frame noseplate is crouched smooth, often withdraws out a hydraulic support 1, with hydraulic single prop 2 firm supporting hydraulic support 1 to straight return channel top board, then move the first hydraulic support 4 and the second hydraulic support 5 on, firmly support back dead zone top plate; Often withdraw a hydraulic support 1, first hydraulic support 4 and the second hydraulic support 5 along return channel 7 to move forward a frame distance; Hydraulic support 1 withdraws in process, and the outstanding top of more than 15m appears in roof caving, uses the some spar material reclaimed, and away from the hydraulic single prop 2 of return channel 7 side under the nettle of goaf section, adds and makes a call to a grillage; Make the return trip empty district add beat grillage position, to hold in the palm support lapping wire rope, after grillage distance frame, old man 8 ragged edge must not exceed return channel 7 second row anchor cable, when grillage is horizontal " # " font layout, do not need to use harrow nail to fix or iron wire binding, grillage is inclination " # " font when arranging, must use harrow nail in addition fixation, or use iron wire binding to reinforce, ensure the safety withdrawing operation element face.
After often withdrawing out a hydraulic support 1, in time by support to straight return channel top board, by hydraulic single prop 2 firm supporting, move the first hydraulic support 4 and the second hydraulic support 5 on then staggered, firmly support back dead zone top plate; Use hydraulic single prop 2 when supporting nettle, above hydraulic single prop 2, use waste and old sleeper or timber wedge and nettle holder to connect, sleeper or timber wedge is vertical with wire rope props up; When there is wire lath fracture phenomena, sleeper or timber wedge are put steel mesh reinforcement or discarded spillplate, makes it closely protect top board, avoid occurring leaking cash.
Adopt technique scheme of the present invention, change a large amount of timber of traditional employing to support and be slowly caving formula and withdraw as without mine timber supporting, the hydraulic support 1 that can be recycled and hydraulic single prop 2 support material movable support is utilized to make the return trip empty district, reduce disposable consumption round log support material, save cost of production, ensure that hydraulic support 1 withdraws safely, avoid hydraulic support 1 to withdraw and occur potential safety hazard, overcome and reach certain span, large-area void top and old power station, brace point post under nettle is under the effect of roof Stress, can break disconnected with a loud crash, tear, roof pressure is discharged, spoil is shaken off, the defect of serious potential safety hazard is brought to the work that withdraws of coal mining tunnel comprehensive mining hydraulic bracket, when implementing without mine timber remove technology simultaneously, remove the method that wood point post adds grillage from and manually lift fortune timber, cross cut saw timber, beat air channel point post, knit a net the lower post of rope, cut net release of pressure, beat the operations such as grillage, greatly improve and withdraw progress, improve productivity effect, reduce cost of production, reduce labour intensity.
Fully-mechanized mining working surface hydraulic support 1 adopts the construction technology without mine timber remove technology, change tradition and be caving disposable consumption round log support material in formula withdrawing technique, for without mine timber supporting, support material form capable of circulation is utilized to withdraw, on average often return a hydraulic support and save 2000 ~ 3500 yuan, for the ZZ13000-27/60D type hydraulic support that one of them mining area work plane uses, average every platform withdraws a hydraulic support, need consumption 3100 yuan, work plane is totally 168 hydraulic supports, full face withdraws end, minimumly to consume 520,000 yuan of mine timbers, greatly cost-saving, save a large amount of mine timber consumption, reduce cost of ton coal, fully-mechanized mining working withdraws in process, average every platform hydraulic support uses 15 ~ 22 timber, for supporting under return channel 7 supporting, nettle with beat grillage, calculate by timber price in 2012, on average eachly withdraw one, work plane light supporting mine timber, just can economize on the use of funds 20 ~ 300,000 yuan, within 1 year, withdraw work plane by 4 and calculate, 80 ~ 1,200,000 yuan can be economized on the use of funds, use without after mine timber new technology withdrawing technique, the hydraulic single prop of use 2.2 ~ 4.5m is only needed to support just, remove from the method that wood point post adds grillage manually lift fortune timber, cross cut saw timber, beat air channel point post, knit a net restrict a lower post, cut net release of pressure, beat the operations such as grillage, greatly improve and withdraw progress, improve productivity effect, greatly reduce worker's labour intensity.
Embodiment 2
Fig. 2 is that a kind of tunnel of mining of the present invention is incorporated as lane or the schematic diagram of the supporting bracket embodiment 2 in district of making the return trip empty, a kind of tunnel of mining of the present invention is as shown in the figure incorporated as lane or the supporting bracket in district of making the return trip empty, comprise and be incorporated as lane or the multiple stage of district's arrangement of making the return trip empty is incorporated as lane for supporting or returns the hydraulic support 1 of dead zone top plate, wherein hydraulic support 1 is caving side, district near being incorporated as lane, after hydraulic support 1 is vertically placed in and is incorporated as lane is caving lane or district of making the return trip empty has frame, old man 8 rib side is set up in parallel, be incorporated as lane and be also provided with multirow hydraulic single prop 2, hydraulic single prop 2 vertically along be incorporated as lane arrangement be incorporated as that lane has form return channel 7 away from rib side, hydraulic support 1 side, the top braces of hydraulic single prop 2 is incorporated as air channel, lane top board, hydraulic support 1 is caving district and side, district of making the return trip empty is provided with multiple row by the many staggered hydraulic single props 9 of transverse direction near being incorporated as lane, wherein often row laterally staggered hydraulic single prop 9 be 5, staggered hydraulic single prop 9 is each passed through the middle part of the wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support 1, other structure and embodiment 1 are together.
The invention also discloses a kind of coal mining tunnel that withdraws and be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty, withdraw step as follows:
(1) along be incorporated as lane or the district's hydraulic support that makes the return trip empty to arrange more than two row hydraulic single prop 2 away from old man after frame 8 side with form return channel 7 away from rib side, hydraulic support 1 side, hydraulic single prop 2 is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop 2 is incorporated as air channel, lane top board; A line hydraulic single prop 2 or expendable wood point post can also be arranged between two row hydraulic single props 2;
(2) hydraulic support 1 is often withdrawn out by return channel 7, after frame, old man 8 lateral is incorporated as lane and is caving district and district of making the return trip empty squeezes into the staggered hydraulic single prop 9 of row many transverse directions, the staggered hydraulic single prop 9 of general employing 5, staggered hydraulic single prop 9 is each passed through the middle part of wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support 1;
(3), after work plane all hydraulic support 1 withdraws, hydraulic single prop 2 carries out manual recovery.
Adopt technical scheme of the present invention, for the coal mining tunnel using small-sized hydraulic support 1, when hydraulic support 1 withdraws, in the region withdrawing from hydraulic support 1, adopt old man 8 lateral after frame be incorporated as lane be caving lane or make the return trip empty district laterally the staggered mode squeezing into 5 staggered hydraulic single props 9 of transverse direction carry out supporting, staggered hydraulic single prop 9 is each passed through the middle part of the wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support 1, this structure, not only technique is simple, secondary protection is carried out to staggered hydraulic single prop 9, ensure that to adopt simultaneously and empty be incorporated as lane or the safety of the district's hydraulic support withdrawing that makes the return trip empty.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a tunnel of mining is incorporated as lane or the supporting bracket in district of making the return trip empty, it is characterized in that: comprise and be incorporated as lane or the multiple stage of district's arrangement of making the return trip empty is incorporated as lane for supporting or returns the hydraulic support of dead zone top plate, wherein hydraulic support is caving side, district near being incorporated as lane, hydraulic support is vertically placed in and is incorporated as lane and after the frame that district has of making the return trip empty, old man's rib side is set up in parallel, the described lane that is incorporated as also is provided with multirow hydraulic single prop, hydraulic single prop vertically along be incorporated as lane arrangement be incorporated as that lane has form return channel away from rib side, hydraulic support side, the top braces of hydraulic single prop is incorporated as air channel, lane top board.
2. be incorporated as lane or the supporting bracket in district of making the return trip empty according to a kind of tunnel of mining according to claim 1, it is characterized in that: described hydraulic support is also set side by side with first hydraulic support vertical with hydraulic support and the second hydraulic support near being incorporated as the side, district that is caving that lane has, the first described hydraulic support and the second hydraulic support be arranged on withdraw hydraulic support column to back timber place.
3. be incorporated as lane or the supporting bracket in district of making the return trip empty according to a kind of tunnel of mining according to claim 1, it is characterized in that: described hydraulic support is caving district and side, district of making the return trip empty is provided with the many staggered multiple row hydraulic single props of transverse direction near being incorporated as lane; Wherein often row laterally staggered hydraulic single prop be 5, staggered hydraulic single prop is each passed through the middle part of the wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support.
4. be incorporated as lane or the supporting bracket in district of making the return trip empty according to a kind of tunnel of mining described in claim 1 or 2, it is characterized in that: described return channel distributes along rib side the above hydraulic single prop of two row, the top of hydraulic single prop is connected wood chip, and the wood chip that wherein top is connected vertically props up and is fixedly supported on below anchor rope supporting plate that top, coal mining tunnel has; A line hydraulic single prop or expendable wood point post can also be arranged between two described row hydraulic single props.
5. be incorporated as lane or the supporting bracket in district of making the return trip empty according to a kind of tunnel of mining according to claim 4, it is characterized in that: described hydraulic single prop and anchor rope supporting plate are for removably connecting; Wherein the spacing of adjacent hydraulic single prop is consistent with cable interval; Return channel is also provided with gear bastard coal net near side, district of making the return trip empty.
6. be incorporated as lane or the supporting bracket in district of making the return trip empty according to a kind of tunnel of mining according to claim 1, it is characterized in that: described return channel is also provided with ventilation fan, ventilation fan air duct stretches into work plane and withdraws operating area.
7. withdraw and be incorporated as lane or a method for the hydraulic support of the district's supporting bracket that makes the return trip empty according to the coal mining tunnel described in any one of claim 1 ~ 6, it is characterized in that: withdraw step as follows:
(1) along be incorporated as lane or hydraulic single prop that the district's hydraulic support that makes the return trip empty arranges more than two row away from old man side after frame with form return channel away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(2) hydraulic support is often withdrawn out by return channel, after frame, old man lateral is incorporated as lane and is caving district and district of making the return trip empty squeezes into the staggered hydraulic single prop of row many transverse directions, general employing 5 staggered hydraulic single props, staggered hydraulic single prop is each passed through the middle part of wood point post that accumbency is placed, wherein wood point post in turn staggered parallel place and place side by side with hydraulic support;
(3), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery.
8. withdraw and be incorporated as lane or a method for the hydraulic support of the district's supporting bracket that makes the return trip empty according to the coal mining tunnel described in any one of claim 1 ~ 6, it is characterized in that: withdraw step as follows:
(1) first withdraw out a supporting bracket, adjustment direction, make it and cut a direction to be substantially consistent; Rise hydraulic support roof supporting, as the first hydraulic support;
After (2) first hydraulic supports have supported top board, the lapping rope in district of making the return trip empty is got ready post and reinforce, then start to withdraw the second hydraulic support;
After (3) second hydraulic supports withdraw out, back timber stretches into below the first hydraulic support, and tail boom uses out frame to twist slowly or hydraulic single prop is drawn passing, makes its distance treat back hydraulic support 1m, has supported tail boom rear portion top board with grillage; Under the wire rope treating back comprehensive mining hydraulic bracket frame limit 0.5m, every root rope is each makes a call to a wood point post, then withdraws hydraulic support;
(4), after hydraulic support is withdrawn from, to making the return trip empty, post supporting got ready by the wire rope of district's column to tail boom position; Then adjust the second hydraulic support, make it and to cut a direction basically identical, the inboard safe edge of the second hydraulic support is near treating go back to hydraulic support column place;
(5) second hydraulic supports are adjusted, and rise roof supporting, fall the first hydraulic support, adjusted to by the first hydraulic support and the second hydraulic support parallel position, roof supporting; Along being incorporated as the hydraulic single prop roof supporting of more than lane stationary arrangement two row and forming return channel with away from rib side, hydraulic support side, hydraulic single prop is vertically along being incorporated as lane arrangement, and the top braces of hydraulic single prop is incorporated as air channel, lane top board; A line hydraulic single prop or expendable wood point post can also be arranged between two row hydraulic single props;
(6), after work plane all hydraulic rack restoring, hydraulic single prop carries out manual recovery.
9. be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty according to a kind of coal mining tunnel that withdraws according to claim 8, it is characterized in that: described withdraw hydraulic support before, frame noseplate is crouched smooth; Described often withdraws out a hydraulic support, with hydraulic single prop firm supporting hydraulic support to straight return channel top board, moves the first hydraulic support and the second hydraulic support then, firmly supports back dead zone top plate; Often withdraw a hydraulic support along return channel, the first hydraulic support and the second hydraulic support move forward a frame distance.
10. be incorporated as lane or the method for the hydraulic support of the district's supporting bracket that makes the return trip empty according to a kind of coal mining tunnel that withdraws described in claim 7 or 8, it is characterized in that: in described hydraulic support withdrawing process, there is the outstanding top of more than 15m in roof caving, at the hydraulic single prop away from return channel side under the nettle of the section that makes the return trip empty, add and make a call to a grillage.
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| CN201510117778.5A CN104763456B (en) | 2015-03-17 | 2015-03-17 | Coal mining tunnel is incorporated as lane or make the return trip empty area's supporting support and the method withdrawing hydraulic support |
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| CN201510117778.5A CN104763456B (en) | 2015-03-17 | 2015-03-17 | Coal mining tunnel is incorporated as lane or make the return trip empty area's supporting support and the method withdrawing hydraulic support |
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| CN105569702A (en) * | 2016-01-11 | 2016-05-11 | 安徽理工大学 | Non-pitwood withdrawing method for hydraulic supports during fully mechanized face withdrawing |
| CN106523015A (en) * | 2016-12-27 | 2017-03-22 | 贵州盘江精煤股份有限公司 | Recycling-period ventilating structure for coal face and construction method of recycling-period ventilating structure |
| CN109779661A (en) * | 2019-01-07 | 2019-05-21 | 霍州煤电集团有限责任公司辛置煤矿 | Fully mechanized coal face crosses the roadway support construction method in point blank sky lane |
| CN110821537A (en) * | 2019-11-29 | 2020-02-21 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
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| CN110821537B (en) * | 2019-11-29 | 2021-02-09 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
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