CN203476338U - Supporting structure for deep well ingate - Google Patents
Supporting structure for deep well ingate Download PDFInfo
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- CN203476338U CN203476338U CN201320603357.XU CN201320603357U CN203476338U CN 203476338 U CN203476338 U CN 203476338U CN 201320603357 U CN201320603357 U CN 201320603357U CN 203476338 U CN203476338 U CN 203476338U
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- supporting structure
- ingate
- asphalt plank
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- sliding layer
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Abstract
The utility model provides a supporting structure for a deep well ingate. The supporting structure comprises a primary supporting structure, wherein the primary supporting structure comprises a concrete spraying layer, a reinforcing mesh, an anchor rod and an anchor cable. The supporting structure is characterized by further comprising a secondary supporting structure, and the secondary supporting structure is provided with an asphalt plank sliding layer, a steel channel well ring layer, a full-section reinforced concrete layer, wherein the asphalt plank sliding layer, the steel channel well ring layer and the full-section reinforced concrete layer are arranged in sequence, and the asphalt plank sliding layer is next to the primary supporting structure. According to the supporting structure for the deep well ingate, a combined supporting mode through the anchor, the mesh, spraying and the cable is adopted in the ingate primary supporting structure, and a combined supporting mode through the full-section reinforced concrete lining, the asphalt plank sliding layer and the dense steel channel well ring is adopted in the secondary supporting structure. Therefore, the damage to the deep well ingate located at high-expansibility soft rock portions like mud rock under the surrounding rock pressure can be avoided.
Description
Technical field
The utility model relates to colliery building field, and more particularly, the utility model is particularly related to a kind of deep-well ingate supporting and protection structure for strong swelling soft rock places such as mud stone.
Background technology
Colliery ingate refers to the position that shaft of vertical well is connected with shaft station horizontal chamber, being a space crossed structure, is the particularity of the ，Yin Qi position, throat of mine, having the features such as section is large, complex structure, service year limit for length, is the construction Difficulties of mine construction.In China, the example that the buried ingate in colliery destroys is of common occurrence, as colliery, the ,Liu village, Ting Nankuang, Tang Kou colliery, colliery, the Qujiang River and the colliery, hilllock etc. of keeping watch, in work progress, in succession there is the major accidents such as wall rock destabilization, Support structure damage in its ingate, be embodied in that ingate and the upper-lower section borehole wall thereof fracture has all occurred in various degree, fall top, the phenomenon such as damaged, maintenance repeatedly, has caused huge economic loss to colliery repeatedly, and the safety in production of mine in serious threat.
The reason of ingate unstable failure is many-sided, and except the reasons such as position selection is improper, crosssection shape design is unreasonable, supporting quality is poor, engineering management absent-mindedness, its main cause is that above-mentioned ingate many places are in take mud stone in main soft stratum.Mud stone easy-weathering and water-swellable, after ingate pick is built, when there is bulking deformation in peripheral rock relaxation zone in Emergence and Development process, broken rock produces macroscopical crack, thereby cause Surrounding Rock Strength to reduce, relaxation zone expands again, and the physical chemistry that has aggravated to have swelling rock expands and mechanics expansion, volume is multiplied, and the rock mass dilatancy pressure in its process is huge.Due to the effect of high-ground stress, as ingate supporting and protection structure, the huge bulbs of pressure cannot be carried again, structure actual effect will be caused.
Utility model content
The purpose of this utility model is to provide a kind of deep-well ingate supporting and protection structure, the problems such as the easy inefficacy of the deep-well ingate supporting and protection structure in soft stratum that exist to solve prior art.
In order to address the above problem, the utility model provides a kind of deep-well ingate supporting and protection structure, it comprises preliminary bracing structure, described preliminary bracing structure comprises concrete jetted layers, steel mesh reinforcement, anchor pole and anchor cable, wherein, also comprise secondary supporting structure, described secondary supporting structure comprises asphalt plank sliding layer, channel-section steel walling crib layer, the full section reinforced concrete floor setting gradually, wherein, described asphalt plank sliding layer is close to described preliminary bracing structure.
According to a kind of preferred embodiment of above-mentioned deep-well ingate supporting and protection structure, wherein, the strength grade of described concrete jetted layers is C20～C25, and thickness is 100～150mm; Described steel mesh reinforcement is Φ 8～10mm round steel, and Mesh distance is 100 * 100～150 * 150mm; Described anchor pole is high-strength prestressed resin anchor, and specification is Φ 22mm * 2500～3000mm, and an array pitch is 800 * 800mm, and plum blossom-shaped is arranged; Described anchor cable is the steel strand of Φ 18.9mm or Φ 21.6mm, length 8～12m, array pitch 1.4～1.6m; Described asphalt plank sliding layer is laid and is formed by asphalt plank, and described asphalt plank is of a size of long 400mm, high 250mm, thick 100～150mm.
According to a kind of preferred embodiment of above-mentioned deep-well ingate supporting and protection structure, wherein, between described asphalt plank sliding layer and described preliminary bracing structure, be also provided with screed; In described asphalt plank sliding layer, the perps of neighbouring described asphalt plank staggers, and described asphalt plank is from ingate base plate paving to skewback line position.
According to a kind of preferred embodiment of above-mentioned deep-well ingate supporting and protection structure, wherein, described channel-section steel walling crib layer comprises a plurality of channel-section steel walling cribs of banking up successively, and described in each, channel-section steel walling crib is formed by 6～8 joint 20#b channel-section steel docking; In same described channel-section steel walling crib, adjacent channel-section steel adopts end riser to be connected with bolt, and the channel-section steel edge of a wing is described asphalt plank sliding layer dorsad.
Ingate preliminary bracing of the present utility model adopts the combined supporting form of anchor, net, spray, rope; Secondary supporting adopts the combination supporting form of full section reinforced concrete lining layer, asphalt plank sliding layer and intensive channel-section steel walling crib, can prevent that the deep-well ingate that is positioned at the strong swelling soft rock places such as mud stone from destroying under pressure from surrounding rock effect.
Accompanying drawing explanation
Fig. 1 is the ingate supporting elevation that utilizes the utility model embodiment;
Fig. 2 is along the sectional drawing of A-A line in Fig. 1;
Fig. 3 is along the sectional drawing of B-B line in Fig. 1;
Fig. 4 is along the sectional drawing of C-C line in Fig. 1;
Fig. 5 is along the sectional drawing of D-D line in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As Figure 1-5, the utility model embodiment has carried out twice supporting to pit shaft 1 and ingate 11 positions: preliminary bracing and secondary supporting.Wherein, preliminary bracing adopts sprayed mortar, the combined supporting form of steel mesh reinforcement, skyhook, installation anchor cable 21 is set, and forms the anchor net spray structure 2 as preliminary bracing structure.After ingate surrouding rock deformation is stable, secondary supporting structure is set.Secondary supporting structure next-door neighbour anchor net spray structure 2, sets gradually asphalt plank sliding layer 3, channel-section steel walling crib layer 4, full section reinforced concrete floor 5, forms secondary combination supporting form, forms secondary supporting structure.
Preferably, in the anchor net spray structure 2 that supporting in the early stage forms, anchor pole adopts high-strength prestressed resin anchor, and anchor pole specification is Φ 22mm * (2500～3000) mm, and an array pitch is 800 * 800mm, and plum blossom-shaped is arranged; Steel mesh reinforcement adopts Φ 8～10mm round steel, and Mesh distance is (100 * 100)～(150 * 150) mm; The strength grade of concrete spraying is C20～C25, and jetting thickness is that 100～150mm(is containing multiple spray); Prestress anchorage cable 21 adopts the steel strand of Φ 18.9mm or Φ 21.6mm, length 8～12m, array pitch 1.4～1.6m, in addition, about the set-up mode of anchor cable 21, as shown in Figure 4, the anchor cable that is positioned at ingate center line both sides axially and 20 °-30 ° of horizontal direction inclination certain angles, the anchor cable being positioned on ingate center line is axially vertical with horizontal direction, and whereby, the construction of anchor cable 21 more for convenience.
When secondary supporting, by the analysis of monitoring measurement data, after ingate surrouding rock deformation is stable, be vertically close to preliminary bracing asphalt plate sliding layer 3.Asphalt plank sliding layer 3 is laid and is formed by the asphalt plank of cuboid, and asphalt plank is preferably dimensioned to be long 400mm, high 250mm, thick 100～150mm.
While manufacturing asphalt plank, asphalt plank is in ground machine-shaping, but not down-hole, its material is to comprise pitch as binding material, as the expanded perlite of aggregate and the composite material of flyash (wherein, the mixing ratio by weight of pitch, expanded perlite and flyash is 1: 0.4: (0.4～1), three's ratio can be any in 1: 0.4: 0.4,1: 0.4: 0.5,1: 0.4: 0.6,1: 0.4: 0.7,1: 0.4: 0.8,1: 0.4: 0.9,1: 0.4: 1.0.Each material proportion of palpus repetition test, selection is applicable to the best proportioning of concrete rock stratum.Above-mentioned composite material, after agitator stirs, is poured into cooling forming in mould and is cuboid, simple and convenient.
More preferably, pitch is selected No. 100 first (or second) bi tumenf orr oad; Expanded perlite particle diameter be greater than 2.5 millimeters be no more than 5% of expanded perlite gross weight, particle diameter be less than 0.15 millimeter be not more than 8% of expanded perlite gross weight; Flyash requires burning completely, and is the Powdered dry thing that look shallow.
During asphalt plate sliding layer 3, should note first with mortar, leveling up before asphalt plate, during laying, should accomplish as far as possible level for every layer, and the upper and lower perps of asphalt plank staggers, asphalt plank is from ingate base plate paving to skewback line position.
In asphalt plank sliding layer 3 process of deployment, set up intensive channel-section steel walling crib simultaneously and form channel-section steel walling crib layer 4, walling crib antenna height is determined according to strong swelling soft rock layer thickness.One walling crib is connected to form by 6～8 joint 20#b channel-section steels, and adjacent channel-section steel adopts end riser to be connected with bolt, end riser will with channel-section steel two ends firm welding, 3 M20 bolts of each joint employing.The channel-section steel edge of a wing is pitch sliding layer 3 dorsad.When first walling crib is set up, want levelling, every joint channel-section steel adopts 2 anchor poles to take root fixing.
The full section reinforced concrete floor (lining cutting) of finally constructing.
In addition, more preferably, for ingate 11 both sides chambers, as shown in Figure 5, preliminary bracing adopts the combined supporting form of anchor, net, spray, rope, and sets up footing anchor pole 22(ingate two bottom sides); Secondary supporting adopts full section steel concrete and the steel fibre reinforced concrete lining cutting with arch of the anti-end, and sets up floor grouting anchor pole 23.
In utilizing the colliery of the utility model embodiment construction, for along continuous straight runs country rock dilatancy, put on the pressure of ingate, asphalt plank sliding layer can play certain cushioning effect, and can equably pressure from surrounding rock be delivered on reinforced concrete lining layer (reinforced concrete floor), make reinforced concrete lining layer bear uniform pressure, thereby effectively improve the stress of ingate supporting and protection structure.Meanwhile, along vertical asphalt plank sliding layer, can decay or eliminate the vertical additional force acting in ingate supporting and protection structure.
In asphalt plank sliding layer process of deployment, set up intensive channel-section steel walling crib, channel-section steel walling crib is mainly used to prevent that asphalt plank from piling up when too high caves in.After reinforced concrete lining layer construction, channel-section steel walling crib and its formation steel reinforced concrete combined support structure, can improve the supporting capacity of ingate supporting and protection structure to a great extent.
To sum up, the utility model can be widely used in all kinds of mine constructions, it can not only prevent that the deep-well ingate that is positioned at the strong swelling soft rock places such as mud stone from destroying under pressure from surrounding rock effect, and saves the expense that later stage ingate is reprocessed, thereby reduces mine construction total cost.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.All changes within the scope of the utility model or within being equal to scope of the present utility model are all included in the utility model.
Claims (4)
1. a deep-well ingate supporting and protection structure, comprise preliminary bracing structure, described preliminary bracing structure comprises concrete jetted layers, steel mesh reinforcement, anchor pole and anchor cable, it is characterized in that, also comprise secondary supporting structure, described secondary supporting structure comprises asphalt plank sliding layer, channel-section steel walling crib layer, the full section reinforced concrete floor setting gradually, and wherein, described asphalt plank sliding layer is close to described preliminary bracing structure.
2. deep-well ingate supporting and protection structure according to claim 1, is characterized in that, the strength grade of described concrete jetted layers is C20～C25, and thickness is 100～150mm;
Described steel mesh reinforcement is Φ 8～10mm round steel, and Mesh distance is 100 * 100～150 * 150mm;
Described anchor pole is high-strength prestressed resin anchor, and specification is Φ 22mm * 2500～3000mm, and an array pitch is 800 * 800mm, and plum blossom-shaped is arranged;
Described anchor cable is the steel strand of Φ 18.9mm or Φ 21.6mm, length 8～12m, array pitch 1.4～1.6m;
Described asphalt plank sliding layer is laid and is formed by asphalt plank, and described asphalt plank is of a size of long 400mm, high 250mm, thick 100～150mm.
3. deep-well ingate supporting and protection structure according to claim 2, is characterized in that, between described asphalt plank sliding layer and described preliminary bracing structure, is also provided with screed;
In described asphalt plank sliding layer, the perps of neighbouring described asphalt plank staggers, and described asphalt plank is from ingate base plate paving to skewback line position.
4. deep-well ingate supporting and protection structure according to claim 1, is characterized in that, described channel-section steel walling crib layer comprises a plurality of channel-section steel walling cribs of banking up successively, and described in each, channel-section steel walling crib is formed by 6～8 joint 20#b channel-section steel docking; In same described channel-section steel walling crib, adjacent channel-section steel adopts end riser to be connected with bolt, and the channel-section steel edge of a wing is described asphalt plank sliding layer dorsad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603357.XU CN203476338U (en) | 2013-09-10 | 2013-09-28 | Supporting structure for deep well ingate |
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| CN201310413485.2 | 2013-09-10 | ||
| CN201310413485 | 2013-09-10 | ||
| CN201320603357.XU CN203476338U (en) | 2013-09-10 | 2013-09-28 | Supporting structure for deep well ingate |
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| CN203476338U true CN203476338U (en) | 2014-03-12 |
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| CN201310449959.9A Active CN103470270B (en) | 2013-09-10 | 2013-09-28 | Deep well ingate supporting structure and construction method thereof |
| CN201320603357.XU Expired - Fee Related CN203476338U (en) | 2013-09-10 | 2013-09-28 | Supporting structure for deep well ingate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470270A (en) * | 2013-09-10 | 2013-12-25 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN107060769A (en) * | 2017-07-03 | 2017-08-18 | 中煤第建设有限公司 | Shaft inset people's row detours template |
| CN108678749A (en) * | 2018-05-23 | 2018-10-19 | 淮矿西部煤矿投资管理有限公司 | A kind of shaft of vertical well construction method with shaft station interconnecting piece and safely and fast |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939104B (en) * | 2014-04-22 | 2016-04-06 | 安徽理工大学 | Colliery dark vertical disturbance rejection ingate structure |
| CN104453914B (en) * | 2014-10-21 | 2016-08-24 | 新汶矿业集团有限责任公司 | The construction method of ingate anti-impact shock-absorbing supporting construction |
| CN104405398B (en) * | 2014-10-21 | 2016-11-30 | 新汶矿业集团有限责任公司 | Ingate anti-impact shock-absorbing supporting construction |
| CN107587878A (en) * | 2015-02-05 | 2018-01-16 | 新汶矿业集团有限责任公司 | Pit shaft and shaft station attachment structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1348528A1 (en) * | 1986-02-26 | 1987-10-30 | А. А. Ждаикнн, И. А. Жллнкин и X Б. F.CM;II амбстои | Method of safeguarding mine workings |
| RU2190765C2 (en) * | 2000-10-30 | 2002-10-10 | ОАО "Кузнецкий научно-исследовательский угольный институт" | Method of dismantling powered cleaning complexes |
| CN201546729U (en) * | 2009-11-13 | 2010-08-11 | 安徽理工大学 | Novel shaft lining structure at ingate position of deep coal mine well |
| CN103016010A (en) * | 2012-12-19 | 2013-04-03 | 青岛平度市旧店金矿 | Shaft deepening simultaneous shaft sinking method |
| CN103244162A (en) * | 2013-05-27 | 2013-08-14 | 湖南科技大学 | Compressible base plate device and anchor cable anchorage method by device |
| CN103470270B (en) * | 2013-09-10 | 2015-04-08 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
-
2013
- 2013-09-28 CN CN201310449959.9A patent/CN103470270B/en active Active
- 2013-09-28 CN CN201320603357.XU patent/CN203476338U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470270A (en) * | 2013-09-10 | 2013-12-25 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN103470270B (en) * | 2013-09-10 | 2015-04-08 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN107060769A (en) * | 2017-07-03 | 2017-08-18 | 中煤第建设有限公司 | Shaft inset people's row detours template |
| CN108678749A (en) * | 2018-05-23 | 2018-10-19 | 淮矿西部煤矿投资管理有限公司 | A kind of shaft of vertical well construction method with shaft station interconnecting piece and safely and fast |
| CN108678749B (en) * | 2018-05-23 | 2023-11-03 | 淮矿西部煤矿投资管理有限公司 | Connecting part of vertical shaft and shaft bottom yard and safe and rapid construction method |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470270B (en) | 2015-04-08 |
| CN103470270A (en) | 2013-12-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |