CN203614107U - Composite retaining structure for horsehead - Google Patents

Composite retaining structure for horsehead Download PDF

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Publication number
CN203614107U
CN203614107U CN201320605199.1U CN201320605199U CN203614107U CN 203614107 U CN203614107 U CN 203614107U CN 201320605199 U CN201320605199 U CN 201320605199U CN 203614107 U CN203614107 U CN 203614107U
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CN
China
Prior art keywords
concrete
retaining
steel
spray
ingate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320605199.1U
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Chinese (zh)
Inventor
程桦
姚直书
荣传新
汪春芹
秦勇
蔡海兵
宋海清
王晓健
郑腾龙
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Anhui University of Science and Technology
Original Assignee
Anhui University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201310413467 priority Critical
Priority to CN201310413467.4 priority
Application filed by Anhui University of Science and Technology filed Critical Anhui University of Science and Technology
Priority to CN201320605199.1U priority patent/CN203614107U/en
Application granted granted Critical
Publication of CN203614107U publication Critical patent/CN203614107U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a composite retaining structure for a horsehead. The composite retaining structure comprises a primary retaining structure adopting anchor rods, anchor cables, bar-mat reinforcements and a spray layer; the composite retaining structure also comprises a plurality of structural steel supports, a concrete re-spray layer, a compressible layer and a concrete-steel steel fiber reinforced concrete arch, wherein the structural steel supports cover the surface of the primary retaining structure; the concrete re-spray layer is formed on the surfaces of the structural steel supports, and is used for filling and leveling up the surfaces of the structural steel supports; the compressible layer is paved on the concrete re-spray layer; the concrete-steel steel fiber reinforced concrete masonry is arranged on the compressible layer. According to the composite retaining structure provided by the utility model, on the basis of the primary retaining structure for the horsehead, a secondary retaining structure is additionally arranged, and therefore, the strength of the retaining structure for the horsehead can be greatly improved. The composite retaining structure is especially suitable for coal mine shaft horseheads in special conditions with thick surface soil and thin bed rock.

Description

Ingate composite supporting construction
Technical field
The utility model relates to coal mine construction field, and specifically, the utility model relates to a kind of ingate composite supporting construction.
Background technology
Ingate is as the junction in pit shaft and tunnel, parking lot, and its stress is very complicated, and particularly ingate is positioned under the specific condition of thick surface soil, thin basement rock, and large section horse-head ingate influence basin is large, stress is concentrated serious.Be subject to follow-up lane cave construction infection, country rock is subject to repeatedly disturbance, and distortion greatly, easily produces unstability, causes ingate Support structure damage.Because rock section is thin, the wall base of the topsoil section borehole wall is close to ingate, and therefore ingate Support structure damage can cause again table soil section shaft wall fracture, jeopardizes mine safety.At present, existing multiple pit shafts are repaired to wait because of the construction of ingate place and are caused the engineering accident of flooding well.
Utility model content
The purpose of this utility model is to provide a kind of ingate composite supporting construction, causes the problem of table soil section shaft lining breakage to solve large section ingate place country rock generation large deformation that prior art exists.
In order to address the above problem, the utility model provides a kind of ingate composite supporting construction, and its technical scheme is as follows:
A kind of ingate composite supporting construction, comprises the once supporting structure that adopts anchor pole, anchor cable, steel mesh reinforcement and spray-up; Wherein, also comprise: many shape steel brackets, are covered in the surface of described once supporting structure; The multiple spray-up of concrete, is formed at described shape steel bracket surface, for described shape steel bracket surface is filled and led up; Compressible stratum, is layed on the multiple spray-up of described concrete; Steel fiber reinforced concrete arch body, is located on described compressible stratum.
According to a kind of preferred embodiment of above-mentioned ingate composite supporting construction, wherein, described shape steel bracket is two U36 shaped steel double-layer overlapping formula U36 shaped steel stacked together, and described compressible stratum is the thick foamed plastics interlayer of 20mm of laying between the multiple spray-up of described concrete and described steel fiber reinforced concrete arch body.
By upper analysis, the utility model, on the basis of ingate once supporting structure, has been set up secondary supporting space structures, can greatly improve the intensity of ingate supporting and protection structure, is particularly suitable for mine shaft ingate and is positioned at the specific condition of thick surface soil, thin basement rock.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional drawing that adopts the ingate composite supporting construction of the utility model preferred embodiment;
Fig. 2 is the transverse cross-sectional view that adopts the ingate composite supporting construction of the utility model preferred embodiment.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As Figure 1-Figure 2, the ingate composite supporting construction of the utility model preferred embodiment comprises once supporting structure and secondary supporting structure, and particularly, once supporting structure comprises anchor pole 1, anchor cable, steel mesh reinforcement 2, spray-up.Secondary supporting structure comprises shape steel bracket 3, the multiple spray-up 4 of concrete, compressible stratum 5, steel fiber reinforced concrete arch body 6, waist rail 7.
Again as depicted in figs. 1 and 2, while construction to being positioned at the ingate 100 of pit shaft 110 both sides, roughly can take following steps.But the utility model is not limited to this, can carry out accommodation to construction technology of the present utility model according to concrete geological conditions.
First, adopt anchor bar/anchor cable 1, steel mesh reinforcement/spray-up 2 to carry out from top to bottom once supporting construction, form the once supporting structure with anchor, net, spray, rope.
Then, set up shape steel bracket 3 in many of steel mesh reinforcement/spray-up 2 surface coverage of once supporting structure.
Shape steel bracket 3 set up complete after, on shape steel bracket 3, sprayed mortar is filled and led up shape steel bracket 3 surfaces, forms the multiple spray-up 4 of concrete simultaneously.
Then, on the multiple spray-up 4 of concrete, lay compressible material, form compressible stratum 5.
Finally, on compressible stratum 5, build steel fiber reinforced concrete arch body 6.
In this preferred embodiment, shape steel bracket 3 is double-layer overlapping formula U36 shaped steel, and also two U36 shaped steel are stacked together, to increase structural strength.6 of steel fiber reinforced concrete arch bodies adopt CF60 concreting, and compressible stratum 5 is the thick foamed plastics sandwich slab of 20mm.Certainly, the material of other embodiment of the utility model is not limited to this, and the material of other any demands that meet corresponding geological conditions all can.
Because shape steel bracket 3 is U36 shaped steel, it has a deep trouth, and in order to gain in strength, this preferred embodiment is in the time forming the multiple spray-up 4 of concrete, also to carrying out grouting filling after the wall of shape steel bracket 3, with the slot in filling section steel support 3.
More preferably, this preferred embodiment, in the time that large section ingate 100 is constructed, is taked top and bottom process construction from the top down, and according to hierarchy number, the shape steel bracket of double-layer overlapping formula 3 is divided into corresponding joint number.Also, in the time of each construction in layer, first tunnel, the shape steel bracket member that then carries out successively anchor pole, anchor cable, steel mesh reinforcement and spray-up once supporting, this layer sets up, sprayed mortar enclosed type steel bracket 3 surface and in its grouting behind shaft or drift lining filling.
Owing to adopting top-down layered construction method, shape steel bracket 3 lower ends at each construction in layer are unsettled, fixing in order to provide support to it, at the each horizontally disposed waist rail 7 together that arranges of every layering both sides side wall, waist rail 7 is preferably i beam, and the shape steel bracket 3 of adjacent two layers is welded in respectively waist rail 7 upper and lower surfaces.Waist rail 7 is by multiple anchoring pieces, and for example drill rod holder 8, is fixed in country rock, as Fig. 1.
In adjacent two-layer shape steel bracket 3, the lower end of the shape steel bracket 3 of last layer and the upper end of next stratotype steel bracket 3 are welded to respectively the upper and lower surface of the waist rail 7 in the middle of the two.
In order to improve the strength and stiffness of shape steel bracket 3, between the both sides waist rail 7 of ingate 100 two ends (be preferably 5.0m scope in) welding to support beam 9, then, to support beam 9 with above shape steel bracket 3 between be connected raker beam 10, to form overall structure.More preferably, be i iron to support beam 9, raker beam 10.
After each construction in layer completes, carry out the end, shuttering, assembling reinforcement net clearly, build steel fiber reinforced concrete arch body 6, and lay the thick foamed plastics interlayer of 20mm to form compressible stratum 5 between the multiple spray-up 4 of concrete and steel fiber reinforced concrete arch body 6, thereby form high-strength overall secondary supporting structure.Concrete wait the steel fiber reinforced concrete arch body 6 watering reaches after some strength, in cutting ingate clear space to support beam 9, raker beam 10.
So far, the composite supporting construction forming via this preferred embodiment construction completes substantially, and it can prevent that large section horse-head ingate from causing because distortion is excessive that wall rock destabilization and top shaft wall structure produce and breaking.
To sum up, the utility model, in the work progress of colliery, is taked strong supporting measure in time to the country rock after driving.And adopt construction in layer, when each layering adopts anchor pole, anchor cable, steel mesh reinforcement and spray-up once supporting, set up immediately double-layer overlapping formula U36 shape steel bracket and carry out powerful supporting, and be furnished with waist rail and to support beam, thereby form space structure system, with deformation controlling for rock surrounding gateways, avoid wall rock destabilization to destroy and cause top shaft wall fracture.And adopt commonsense method when construction, once construction from top to bottom, only have anchor pole, anchor cable, steel mesh reinforcement and spray-up once supporting, support rigidity is little, and rock deformation is large, easily causes that wall rock destabilization destroys, and can only on earth, just can build ordinary reinforced concrete arch body at driving, its supporting and protection structure tension, shear behavior are poor, under inhomogeneous disturbance load action, very easily produce and break.
Visible, the anti-surrouding rock deformation ability of the utility model is strong, tension and shear behavior are greatly enhanced.For the large section horse-head ingate and the supporting that are positioned under thick surface soil, thin basement rock specific condition, the utility model can effectively prevent that surrouding rock deformation is excessive, supporting and protection structure produces unstability and topsoil section shaft lining breakage.
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.Allly within the scope of the utility model or in the change being equal in scope of the present utility model, be all included in the utility model.

Claims (2)

1. an ingate composite supporting construction, comprises the once supporting structure that adopts anchor pole, anchor cable, steel mesh reinforcement and spray-up;
It is characterized in that, also comprise:
Many shape steel brackets, are covered in the surface of described once supporting structure;
The multiple spray-up of concrete, is formed at described shape steel bracket surface, for described shape steel bracket surface is filled and led up;
Compressible stratum, is layed on the multiple spray-up of described concrete;
Steel fiber reinforced concrete arch body, is located on described compressible stratum.
2. ingate composite supporting construction according to claim 1, it is characterized in that, described shape steel bracket is two U36 shaped steel double-layer overlapping formula U36 shaped steel stacked together, and described compressible stratum is the thick foamed plastics interlayer of 20mm of laying between the multiple spray-up of described concrete and described steel fiber reinforced concrete arch body.
CN201320605199.1U 2013-09-10 2013-09-28 Composite retaining structure for horsehead Expired - Fee Related CN203614107U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310413467 2013-09-10
CN201310413467.4 2013-09-10
CN201320605199.1U CN203614107U (en) 2013-09-10 2013-09-28 Composite retaining structure for horsehead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320605199.1U CN203614107U (en) 2013-09-10 2013-09-28 Composite retaining structure for horsehead

Publications (1)

Publication Number Publication Date
CN203614107U true CN203614107U (en) 2014-05-28

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CN201310450319.XA Active CN103485794B (en) 2013-09-10 2013-09-28 Composite ingate supporting structure and construction method thereof

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
CN109611138B (en) * 2019-01-17 2021-07-30 平顶山平煤设计院有限公司 Coal mine shaft wind flow partition method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

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CN103485794A (en) 2014-01-01
CN103485794B (en) 2015-06-03

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140528

Termination date: 20170928