CN103470273A - Mine roadway three-dimensional lattice reinforced concrete bracket - Google Patents
Mine roadway three-dimensional lattice reinforced concrete bracket Download PDFInfo
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- CN103470273A CN103470273A CN2013104498115A CN201310449811A CN103470273A CN 103470273 A CN103470273 A CN 103470273A CN 2013104498115 A CN2013104498115 A CN 2013104498115A CN 201310449811 A CN201310449811 A CN 201310449811A CN 103470273 A CN103470273 A CN 103470273A
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Abstract
The invention discloses a mine roadway three-dimensional lattice reinforced concrete bracket. The mine roadway three-dimensional lattice reinforced concrete bracket comprises a three-dimensional reinforcing net frame and a concrete spraying layer, wherein the three-dimensional reinforcing net frame is formed by connecting a top plate bracket and two side wall brackets; the top plate bracket comprises a plurality of unit sheets and a top plate primary bar group consisting of a plurality of parallel top plate primary bars, and the unit sheets are vertical to the top plate primary bar group and are distributed at equal intervals; each side wall bracket comprises a plurality of unit sheets and a side wall primary bar group consisting of a plurality of parallel side wall primary bars, and the unit sheets are vertical to the side wall primary bar group and are distributed at equal intervals; each unit sheet comprises a bridge-shaped arc rib and a primary connecting bar, the middle of the bridge-shaped arc rib is fixedly connected with the middle of the primary connecting bar, the two ends of the bridge-shaped arc rib are fixedly connected with the two ends of the primary connecting bar through secondary connecting bars respectively, a reinforcing rib is also arranged between the bridge-shaped arc rib and the primary connecting bar, one end of the reinforcing rib is fixedly connected with the end part of the bridge-shaped arc rib, and the other end of the reinforcing rib is fixedly connected to the primary connecting bar; the two ends of the bridge-shaped arc rib of each unit sheet, and the two ends and the middle parts of the primary connecting bar of each unit sheet are fixedly connected with the corresponding top plate primary bar and the corresponding side wall primary bar respectively.
Description
Technical field
The present invention relates to a kind of steel concrete supporting framework, particularly relate to a kind ofly be applicable to the deep well in mine roadway in high strata pressure, across the three-dimensional lattice reinforced concrete support of adopting workings subject to dy namic pressure, bump tunnel, longspan tunnel and large-section underground etc.
Background technology
Deep well in mine geostatic pressure degree is high, and under mining influence and high-ground stress condition, particularly difficulty is controlled on stratum, thereby support system is more and more strengthened.
In existing support system, the support system formed by many U29 shaped steel arch arranged with intervals be need to strengthen support capacity need increase shaped steel arch to reduce the frame distance between adjacent U29 shaped steel arch, and strengthen the contact bar between adjacent bow member, even also to use U36 shaped steel; Anchor net spray support system will be reinforced with shaped steel arch, or carries out combined supporting with anchor cable, wall rock grouting etc.; Though above-mentioned support system can reach certain supporting effect, complex process, supporting expense are very high; Also has lattice bow member support system, by reinforcing cage bow member arranged with interval, formed, between frame, by concrete, couple together, its advantage is to have alleviated weight support frame, has strengthened the toughness of support, but the part of the contact between each bow member only connects by concrete, stability and the supporting capacity of support are weakened, the general cage of reinforcement only used it as in spray-up, effect and the shaped steel arch brought into play are similar, are difficult to bearing high strength ground and press.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of three-dimensional lattice reinforced concrete support, and it is lightweight, and supporting is stable, and cost is low.
The three-dimensional lattice reinforced concrete support of mine working of the present invention, comprise three-dimensional bar frame and be wrapped in the concrete spray coating on three-dimensional bar frame, described three-dimensional bar frame is formed by connecting by roof timbering and two lateral wall supports, the top board master muscle group that described roof timbering comprises a plurality of unit sheet and is comprised of many top board master muscle that be arranged in parallel, the vertical top board master of a plurality of unit sheet muscle group equidistantly distributes, the lateral wall master muscle group that described lateral wall support comprises a plurality of unit sheet and is comprised of many lateral wall master muscle that be arranged in parallel, a plurality of unit sheet vertical side head of a secret society muscle group equidistantly distributes, each described unit sheet comprises bridge shape arc muscle, main dowel, described bridge shape arc muscle mid portion is fixedly connected with main dowel mid portion, the two ends of bridge shape arc muscle are fixedly connected with the two ends of main dowel by inferior dowel respectively, also be provided with reinforcing rib between described bridge shape arc muscle and main dowel, one end of described reinforcing rib is fixedly connected with the end of bridge shape arc muscle, the other end is fixedly connected on main dowel, the bridge shape arc muscle two ends of each described unit sheet, the two ends of main dowel and mid portion respectively with corresponding top board master muscle, lateral wall master muscle is fixedly connected with.
The three-dimensional lattice reinforced concrete support of mine working of the present invention, the two ends of the two ends of wherein said roof timbering and lateral wall support are respectively equipped with gusset piece, when roof timbering and lateral wall bracket end connect, be provided with retractable backing plate between two gusset pieces, bolt links together roof timbering and lateral wall support through the bolt hole attaching nut on gusset piece and retractable backing plate.
The three-dimensional lattice reinforced concrete support of mine working of the present invention, wherein said roof timbering comprises symmetrical two parts, the end of two parts docking is respectively equipped with gusset piece, be provided with retractable backing plate between two gusset pieces, the bolt hole attaching nut that two parts of roof timbering pass on gusset piece, retractable backing plate by bolt links together.
The three-dimensional lattice reinforced concrete support of mine working of the present invention, wherein said gusset piece adopts steel plate.
The three-dimensional lattice reinforced concrete support of mine working of the present invention difference from prior art is that the three-dimensional lattice reinforced concrete support of mine working of the present invention adopts reinforcing bar to be built into three-dimensional net rack, and adopt to have and allow the vertical main muscle group of modular unit sheet of compression functions equidistantly distribute, make it can when country rock deforms, do appropriate distortion and allow pressure, jointly form liner structure with concrete spray coating, both having had advantages of that the rigid protection structure is born powerfully presses loosely, have advantages of that again flexible support allows country rock to occur necessarily being out of shape and limiting the country rock excessive deformation occurring loosening, supporting stability is strong, and the present invention adopts reinforcing bar to construct rack, lightweight, cost is low, the support engineering amount is sprayed in the identical situation of supporting with the common anchor net, the supporting expense reduces more than 30% than metallic support.
Below in conjunction with accompanying drawing, the three-dimensional lattice reinforced concrete support of mine working of the present invention is described further.
The accompanying drawing explanation
The three-dimensional structure diagram that Fig. 1 is three-dimensional bar frame in the three-dimensional lattice reinforced concrete support of mine working of the present invention;
The structure chart that Fig. 2 is unit sheet in the three-dimensional lattice reinforced concrete support of mine working of the present invention;
The use state profile that Fig. 3 is the three-dimensional lattice reinforced concrete support of mine working of the present invention.
The specific embodiment
As shown in Figure 3, the three-dimensional lattice reinforced concrete support of present embodiment mine working comprises three-dimensional bar frame and is wrapped in the concrete spray coating 1 on three-dimensional bar frame.As shown in Figure 1, three-dimensional bar frame comprises roof timbering 2 and two lateral wall supports 3, roof timbering comprises symmetrical two parts, two parts are all equidistantly to be distributed and form by the vertical top board master muscle group 21 of a plurality of unit sheet 4, top board master muscle group 21 comprises many top board master muscle that be arranged in parallel, two lateral wall supports 3 are all equidistantly to be arranged and form by a plurality of unit sheet 4 vertical side head of a secret society muscle groups 31, and lateral wall master muscle group 31 comprises many lateral wall master muscle that be arranged in parallel.As shown in Figure 2, each unit sheet 4 comprises bridge shape arc muscle 41, main dowel 42, bridge shape arc muscle 41 mid portions and main dowel 42 mid portions are welded and fixed, the two ends of bridge shape arc muscle 41 are welded and fixed by inferior dowel 43 and the two ends of main dowel 42 respectively, also be provided with reinforcing rib 44 between bridge shape arc muscle 41 and main dowel 42, the end of one end of reinforcing rib 44 and bridge shape arc muscle 41 is welded and fixed, the other end is weldingly fixed on main dowel 42, the bridge shape arc muscle two ends of each unit sheet 4, main dowel two ends and mid portion are weldingly fixed on respectively corresponding top board master muscle, on lateral wall master muscle.
The two ends of the two ends of each roof timbering 2 and lateral wall support 3 are respectively equipped with gusset piece 5, gusset piece adopts steel plate to make, roof timbering and lateral wall bracket end connect, be provided with retractable backing plate 6 between two gusset pieces, adopt bolt through the bolt hole attaching nut on two gusset pieces 5 and retractable backing plate 6, roof timbering 2 and lateral wall support 3 to be linked together, two parts end docking of roof timbering 2 symmetries, be provided with equally retractable backing plate between two gusset pieces, adopt bolt through two gusset pieces, bolt hole attaching nut on retractable backing plate links together two parts of roof timbering.
Three-dimensional bar frame is after the country rock place installs, and cast-in-place or sprayed mortar spray-up to it, make three-dimensional net rack, concrete spray coating and country rock be unified into three-dimensional integral body, makes three-dimensional lattice reinforced concrete support with country rock is out of shape jointly, jointly carry.
In the three-dimensional lattice reinforced concrete support of mine working of the present invention, roof timbering can be also integrative-structure.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (4)
1. the three-dimensional lattice reinforced concrete support of a mine working, it is characterized in that: comprise three-dimensional bar frame and be wrapped in the concrete spray coating (1) on three-dimensional bar frame, described three-dimensional bar frame is formed by connecting by roof timbering (2) and two lateral wall supports (3), described roof timbering (2) comprises a plurality of unit sheets (4) and the top board master muscle group (21) be comprised of many top board master muscle that be arranged in parallel, the vertical top board master muscle group (21) of a plurality of unit sheets (4) equidistantly distributes, described lateral wall support (3) comprises a plurality of unit sheets (4) and the lateral wall master muscle group (31) be comprised of many lateral wall master muscle that be arranged in parallel, a plurality of unit sheets (4) vertical side head of a secret society muscle groups (31) equidistantly distribute, each described unit sheet (4) comprises bridge shape arc muscle (41), main dowel (42), described bridge shape arc muscle (41) mid portion is fixedly connected with main dowel (42) mid portion, the two ends of bridge shape arc muscle (41) are fixedly connected with the two ends of main dowel (42) by time dowel (43) respectively, also be provided with reinforcing rib (44) between described bridge shape arc muscle (41) and main dowel (42), one end of described reinforcing rib (44) is fixedly connected with the end of bridge shape arc muscle (41), the other end is fixedly connected on main dowel (42), the bridge shape arc muscle two ends of each described unit sheet (4), the two ends of main dowel and mid portion respectively with corresponding top board master muscle, lateral wall master muscle is fixedly connected with.
2. the three-dimensional lattice reinforced concrete support of mine working according to claim 1, it is characterized in that: the two ends of the two ends of described roof timbering (2) and lateral wall support (3) are respectively equipped with gusset piece (5), when roof timbering and lateral wall bracket end connect, be provided with retractable backing plate (6) between two gusset pieces, bolt links together roof timbering and lateral wall support through the bolt hole attaching nut on gusset piece and retractable backing plate.
3. the three-dimensional lattice reinforced concrete support of mine working according to claim 2, it is characterized in that: described roof timbering (2) comprises symmetrical two parts, the end of two parts docking is respectively equipped with gusset piece (5), be provided with retractable backing plate (6) between two gusset pieces, the bolt hole attaching nut that two parts of roof timbering pass on gusset piece, retractable backing plate by bolt links together.
4. according to the three-dimensional lattice reinforced concrete support of the described mine working of claim 2 or 3, it is characterized in that: described gusset piece adopts steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104498115A CN103470273A (en) | 2013-09-24 | 2013-09-24 | Mine roadway three-dimensional lattice reinforced concrete bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104498115A CN103470273A (en) | 2013-09-24 | 2013-09-24 | Mine roadway three-dimensional lattice reinforced concrete bracket |
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| CN103470273A true CN103470273A (en) | 2013-12-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993893A (en) * | 2014-06-06 | 2014-08-20 | 安徽理工大学 | Underground construction three-dimensional reinforcing steel bar polypropylene fiber concrete support |
| CN104061004A (en) * | 2014-07-10 | 2014-09-24 | 招商局重庆交通科研设计院有限公司 | Steel bar construction for secondary lining of tunnel |
| CN107060838A (en) * | 2016-12-27 | 2017-08-18 | 河南理工大学 | A kind of large span contains anti-buckling sub-truss support |
| CN108386212A (en) * | 2018-03-13 | 2018-08-10 | 中水北方勘测设计研究有限责任公司 | Connection method of the tunnel support between steel arch-shelf unit |
| CN110685977A (en) * | 2019-09-03 | 2020-01-14 | 徐州海马机械铸造有限公司 | Mechanical connecting support |
| CN111827074A (en) * | 2020-06-04 | 2020-10-27 | 武汉市政工程设计研究院有限责任公司 | Steel reinforced concrete arch bridge |
| CN112196585A (en) * | 2020-08-28 | 2021-01-08 | 安徽理工大学 | Anchor-shotcreting latticed shell supporting system for coal mine tunnel |
| CN112832817A (en) * | 2021-01-27 | 2021-05-25 | 兖州中材建设有限公司 | Underground chamber ore bin supporting structure and construction process thereof |
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| CN1306150A (en) * | 2000-06-11 | 2001-08-01 | 郭兰波 | Steel bar reticulated shell support and reticulated shell anchor-shotcrete support |
| CN101852083A (en) * | 2010-04-16 | 2010-10-06 | 中国科学院武汉岩土力学研究所 | Quick supporting method for large-deformation roadway easy to fall, break and loosen and apparatus thereof |
| CN203114302U (en) * | 2013-03-15 | 2013-08-07 | 山东中煤工矿物资集团有限公司 | Contractive protective support frame of roadway |
| CN203531927U (en) * | 2013-09-24 | 2014-04-09 | 中鼎国际工程有限责任公司 | Mine laneway three-dimensional lattice reinforced concrete support |
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2013
- 2013-09-24 CN CN2013104498115A patent/CN103470273A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306150A (en) * | 2000-06-11 | 2001-08-01 | 郭兰波 | Steel bar reticulated shell support and reticulated shell anchor-shotcrete support |
| CN101852083A (en) * | 2010-04-16 | 2010-10-06 | 中国科学院武汉岩土力学研究所 | Quick supporting method for large-deformation roadway easy to fall, break and loosen and apparatus thereof |
| CN203114302U (en) * | 2013-03-15 | 2013-08-07 | 山东中煤工矿物资集团有限公司 | Contractive protective support frame of roadway |
| CN203531927U (en) * | 2013-09-24 | 2014-04-09 | 中鼎国际工程有限责任公司 | Mine laneway three-dimensional lattice reinforced concrete support |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993893A (en) * | 2014-06-06 | 2014-08-20 | 安徽理工大学 | Underground construction three-dimensional reinforcing steel bar polypropylene fiber concrete support |
| CN104061004A (en) * | 2014-07-10 | 2014-09-24 | 招商局重庆交通科研设计院有限公司 | Steel bar construction for secondary lining of tunnel |
| CN104061004B (en) * | 2014-07-10 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Tunnel Second Lining bar construction |
| CN107060838A (en) * | 2016-12-27 | 2017-08-18 | 河南理工大学 | A kind of large span contains anti-buckling sub-truss support |
| CN107060838B (en) * | 2016-12-27 | 2019-10-01 | 河南理工大学 | A kind of large span contains anti-buckling sub-truss bracket |
| CN108386212A (en) * | 2018-03-13 | 2018-08-10 | 中水北方勘测设计研究有限责任公司 | Connection method of the tunnel support between steel arch-shelf unit |
| CN108386212B (en) * | 2018-03-13 | 2019-05-28 | 中水北方勘测设计研究有限责任公司 | Connection method of the tunnel support between steel arch-shelf unit |
| CN110685977A (en) * | 2019-09-03 | 2020-01-14 | 徐州海马机械铸造有限公司 | Mechanical connecting support |
| CN111827074A (en) * | 2020-06-04 | 2020-10-27 | 武汉市政工程设计研究院有限责任公司 | Steel reinforced concrete arch bridge |
| CN112196585A (en) * | 2020-08-28 | 2021-01-08 | 安徽理工大学 | Anchor-shotcreting latticed shell supporting system for coal mine tunnel |
| CN112832817A (en) * | 2021-01-27 | 2021-05-25 | 兖州中材建设有限公司 | Underground chamber ore bin supporting structure and construction process thereof |
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Application publication date: 20131225 |