CN105019926A - Roadway support structure adopting matching of truss and U-shaped steel - Google Patents
Roadway support structure adopting matching of truss and U-shaped steel Download PDFInfo
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- CN105019926A CN105019926A CN201510518987.0A CN201510518987A CN105019926A CN 105019926 A CN105019926 A CN 105019926A CN 201510518987 A CN201510518987 A CN 201510518987A CN 105019926 A CN105019926 A CN 105019926A
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- shaped steel
- support structure
- deck
- truss
- roadway support
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Abstract
The invention relates to a roadway support structure adopting matching of a truss and U-shaped steel. According to the roadway support structure, the problems of poor independent support effect and potential safety hazard of a U-shaped steel support can be effectively solved. The roadway support structure comprises the U-shaped steel, clamp seats, hinged joints, hinged bolts, a chord member and web members, wherein the hinged joints at the upper parts of the web members are connected with the U-shaped steel through the clamp seats, and the hinged joints at the lower parts of the web members are connected with the chord member through the clamp seats. The roadway support structure is convenient to use, easy to mount and good in connecting effect, occupies small roadway space, can replace and save other unnecessary materials, brings great convenience for underground safety and production, and enables the support to be stable and effective.
Description
Technical field
The present invention relates to the roadway support structure that a kind of truss coordinates with U-shaped steel, belong to roadway support field.
Background technology
In pit mining process, the tunnel majority adopting U-shaped steel bracket is semicircular arch or basket handle arch, arch radius 2 ~ 3m, U-shaped steel bracket radius in Bracing Process because geological structure or adopt action impact under, U-shaped steel bracket is subject to the effect of mine pressure that rock stratum around tunnel increases suddenly it, concentrates, in this case support can be caused to collapse under pressure, and tunnel deforms and is far more than and causes human casualty accident.Secondly, current many Coal Exploitation hydraulic props are used as strengthening supporting, but hydraulic prop coordinates U-shaped steel supporting to occupy tunnel lower space comparatively greatly, affects the normal use in tunnel.In addition, the above-mentioned method effect mentioning strengthening supporting is not very desirable, is therefore badly in need of the novel strengthening supporting structure that a kind of cost is low, effective.
Summary of the invention
For above-mentioned produced problem, the object of this invention is to provide a kind of structure simple, supporting effect is good and save the new supporting structure of tunnel bottom space.
For achieving the above object, adopt the supporting and protection structure that coordinates with U-shaped steel of truss, claim arch truss to be the light-duty grillage of light-duty grillage abroad by thickness not the reinforcing bar of grade or screw-thread steel be welded, belong to light-duty arch truss supporting serial.Use trussed construction supporting to have good mechanical property at underground coal mine, and lightweight, cost is low.
Trussed construction and U-shaped steel domes are two kinds in numerous structural system.From the angle of mechanics, the moment of flexure that external load produces all can be converted into the axial push-pull power of component by them, thus improves the efficiency of structure.
Arch and truss are exactly the two kinds of typical structures produced under this principle.Arch achieves the conversion of moment of flexure to axle power with the curve form of its uniqueness, and moment of flexure is then converted into the axle power of chord member by truss by the mode of lattice.Truss combines with U-shaped steel domes and can be used as a kind of rationally effective structural system.So, will encircle and truss combination, just define a kind of stressed more rational new structure.
The technical solution used in the present invention is: the roadway support structure that a kind of truss coordinates with U-shaped steel, it is characterized in that it is made up of U-shaped steel, deck, articulated joint, link bolt, chord member, web member, the articulated joint on web member top is connected by deck with U-shaped steel, and the articulated joint of web member bottom is connected with chord member by deck.The deck that web member is connected with U-shaped steel and chord member is made up of the curved plate body in cross section, masking sheet, screw bolt and nut.U-shaped steel is stuck in the arc section groove between masking sheet and plate body, masking sheet and plate body is fixed by screw bolt and nut, plate body bottom by two circular ports, for web member and deck hinged.There is articulated joint at web member two ends, and articulated joint is connected by link bolt with deck.When support force is larger, when U-shaped steel leg post cannot support, adopt hydraulic prop (12) to be connected with the deck of bottom by articulated joint, auxiliary leg post supports.
The present invention is easy to use, easily installs, and good connecting effect takies lane space little, alternative and save other unnecessary materials, for down-hole safe, produce and bring many convenience, and make supporting stable and effectively.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of this invention;
Fig. 2 is cartridge structure elevation;
Fig. 3 position cartridge structure lateral view;
Fig. 4 is web member structural representation;
Fig. 5 is the force analysis figure of structure;
Simplified schematic diagram when Fig. 6 is hydraulic prop supplemental support.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, the present invention includes U-shaped steel, deck, articulated joint, link bolt, chord member, web member composition, the articulated joint on web member top is connected by deck with U-shaped steel, and the articulated joint of web member bottom is connected with chord member by deck.When carrying out supporting and installing, first deck is fixed on U-shaped steel and then chord member is connected with deck, next web member is connected and can carry out supporting to tunnel.
As shown in Figures 2 and 3, the deck that is connected with U-shaped steel and chord member of web member is made up of the curved plate body in cross section, masking sheet, screw bolt and nut.U-shaped steel is stuck in the arc section groove between masking sheet and plate body, masking sheet and plate body is fixed by screw bolt and nut, plate body bottom by two circular ports, for web member and deck hinged.
As shown in Figure 4, there is articulated joint at web member two ends, and articulated joint is connected by link bolt with deck.
As shown in Figure 5 and Figure 6, when at top, U-shaped steel is stressed, U-shaped steel can bear a part of power, in addition, another part power passes to chord member by articulated structure through web member, the mechanical compliance be delivered on chord member chord member and is passed to deck bottom, and horizontal applied force is acted on wall by deck, vertical is acted on U-shaped steel leg post.When deck stressed larger time, if exceed the stressed limit of leg post, then carry out auxiliary shoring by hydraulic prop.
Claims (2)
1. the roadway support structure that coordinates with U-shaped steel of a truss, it is characterized in that it is made up of U-shaped steel (1), deck (2), articulated joint (3), link bolt (4), chord member (5), web member (6), the dumpling joint (3) on web member top is connected by deck (2) with U-shaped steel, and the articulated joint (3) of web member bottom is connected with chord member (5) by deck (2).
2. the roadway support structure that coordinates with U-shaped steel of a kind of truss according to claim 1, is characterized in that the deck that web member is connected with U-shaped steel and chord member is made up of plate body (7), masking sheet (8), bolt (9) and the nut (10) that cross section is curved.U-shaped steel is stuck in the arc section groove between masking sheet and plate body, masking sheet and plate body is fixed by screw bolt and nut, plate body bottom by two circular ports (11), for web member and deck hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518987.0A CN105019926B (en) | 2015-08-24 | 2015-08-24 | The roadway support structure of truss and U-shaped steel cooperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518987.0A CN105019926B (en) | 2015-08-24 | 2015-08-24 | The roadway support structure of truss and U-shaped steel cooperation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105019926A true CN105019926A (en) | 2015-11-04 |
| CN105019926B CN105019926B (en) | 2019-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510518987.0A Active CN105019926B (en) | 2015-08-24 | 2015-08-24 | The roadway support structure of truss and U-shaped steel cooperation |
Country Status (1)
| Country | Link |
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| CN (1) | CN105019926B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424225A (en) * | 2016-09-30 | 2017-02-22 | 湖南科技大学 | Pneumatic U-shaped steel bracket repair and support device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010214677A1 (en) * | 2009-08-26 | 2011-03-17 | Fci Holdings Delaware, Inc. | Mine roof and rib support |
| CN201826860U (en) * | 2010-10-15 | 2011-05-11 | 温耀军 | Novel deformation-resistant mine I-beam bracket |
| CN102425436A (en) * | 2011-11-24 | 2012-04-25 | 河南理工大学 | Fixed-type clamping seat for connecting U-shaped steel bracket and single hydraulic prop |
| CN203856482U (en) * | 2014-06-09 | 2014-10-01 | 中国葛洲坝集团股份有限公司 | Whole truss template device for arc top arch |
| CN205047238U (en) * | 2015-08-24 | 2016-02-24 | 河南理工大学 | Truss and U shaped steel complex roadway support structure |
-
2015
- 2015-08-24 CN CN201510518987.0A patent/CN105019926B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010214677A1 (en) * | 2009-08-26 | 2011-03-17 | Fci Holdings Delaware, Inc. | Mine roof and rib support |
| CN201826860U (en) * | 2010-10-15 | 2011-05-11 | 温耀军 | Novel deformation-resistant mine I-beam bracket |
| CN102425436A (en) * | 2011-11-24 | 2012-04-25 | 河南理工大学 | Fixed-type clamping seat for connecting U-shaped steel bracket and single hydraulic prop |
| CN203856482U (en) * | 2014-06-09 | 2014-10-01 | 中国葛洲坝集团股份有限公司 | Whole truss template device for arc top arch |
| CN205047238U (en) * | 2015-08-24 | 2016-02-24 | 河南理工大学 | Truss and U shaped steel complex roadway support structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424225A (en) * | 2016-09-30 | 2017-02-22 | 湖南科技大学 | Pneumatic U-shaped steel bracket repair and support device |
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| Publication number | Publication date |
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| CN105019926B (en) | 2019-10-11 |
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Inventor after: Lu Zhongliang Inventor after: Li Yinzheng Inventor after: Li Yujiang Inventor after: Wang Hongli Inventor before: Li Yinzheng Inventor before: Li Yujiang Inventor before: Wang Hongli Inventor before: Lu Zhongliang |
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