CN203374285U - High-resistance-increasing type combined steel supporting frame - Google Patents
High-resistance-increasing type combined steel supporting frame Download PDFInfo
- Publication number
- CN203374285U CN203374285U CN201320363423.0U CN201320363423U CN203374285U CN 203374285 U CN203374285 U CN 203374285U CN 201320363423 U CN201320363423 U CN 201320363423U CN 203374285 U CN203374285 U CN 203374285U
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- steel
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- supporting frame
- type combined
- increasing type
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Abstract
The utility model discloses a high-resistance-increasing type combined steel supporting frame. The high-resistance-increasing type combined steel supporting frame comprises steel arches, wherein the steel arches are of an arc shape, the two ends of each steel arch are provided with connecting plates, through holes are formed in the connecting plates, the connecting plates of every two adjacent steel arches are connected in a butt joint mode through metal connecting pieces, clamping buckles are arranged at the peripheries of the steel arches, locking anchor rods are fixed to the two sides of each clamping buckle, and every two adjacent steel arches are connected through tie rods. The high-resistance-increasing type combined steel supporting frame can be machined in a land factory in a centralized mode, is formed in a welding mode, and is simple in machining; through the combination effect of equal-strength connecting sheets, the clamping buckles, the locking anchor rods and the tie rods, the advantages, such as high strength and high rigidity, of section steel can be given full play to, the characteristics, such as the rapid resistance increasing characteristic, the early strength characteristic and the high working resistance characteristic, of the high-resistance-increasing type combined steel supporting frame are achieved, stress acted on the high-resistance-increasing type combined steel supporting frame can be transferred to the deep portion of surrounding rock, the self-stabilization bearing capacity of the surrounding rock is improved, and deformation of the surrounding rock is effectively controlled.
Description
Technical field
The utility model relates to a kind of steel support bracket, belongs to underground engineering wall rock control technology field, is specifically related to a kind of strong height connected of shaped steel that adopts and increases resistance steel combination supporting frame.
Background technology
The subterranean tunnel engineering is because protolith geology and stress condition all can cause the tunnel deformation sedimentation after excavation, and special is even to cause the tunnel unstability to be caved in soft rock, expansive rock, fault belt and high-ground stress location.At present, how solving the stability of subterranean tunnel country rock and supporting and protection structure in construction and excavation, Bracing Process, is one of key technical problem in the subterranean tunnel engineering construction.And generally can take the combination control technology of preliminary bracing and secondary lining in the supporting of subterranean tunnel engineering surrounding rock, initial stage lining cutting support relatively common are grid steel frame and I steel composite steelframe form.Shaped steel, by its special Cross section Design, has the characteristic of high strength, high rigidity, in the underground engineering wall rock supporting, has significant advantage.And general shaped steel is in use, can't give full play to its advantage, particularly, under different engineering specifications, independent shaped steel can't engineering demands.
Summary of the invention
The purpose of this utility model is to provide a kind of combination steel support bracket, give full play to the advantage of shaped steel, can meet again under different engineering specifications simultaneously, particularly on soft rock, expansive rock, fault belt and high-ground stress stratum, realizing that combination steel support bracket is high increases resistance, deformation controlling for rock surrounding gateways, realize the purpose of country rock from steady carrying.
The technical solution of the utility model is as follows: a kind of high resistance-enlarging-type steel combination supporting frame, comprise the steel arch frame, it is characterized in that: the curved and two ends of described steel arch frame are provided with junction plate, and junction plate is provided with through hole, and the junction plate of adjacent steel bow member docks by metal connecting piece; The periphery of steel arch frame is provided with snap fastener, and the both sides of snap fastener are fixed with the locking anchor pole.
Between described steel arch frame and another steel arch frame, by tie rod, be connected.
Described steel arch frame is " U " shaped steel, angle steel, channel-section steel or steel pipe.
The beneficial effects of the utility model are: high resistance-enlarging-type steel combination supporting frame can be concentrated processing in surface facility, and welding fabrication, and processing is simple; Shaped steel such as passes through at the compound action of strong brace, snap fastener, locking anchor pole and tie rod, can give full play to the advantage of shaped steel high strength, high rigidity, realize combination steel support bracket anxious increase resistance, early by force, the characteristic of high workload resistance, can shift the stress on combination steel support bracket to the country rock deep, improve the certainly steady supporting capacity of country rock, effectively deformation controlling for rock surrounding gateways.
The accompanying drawing explanation
Fig. 1 is the utility model mounting structure schematic diagram.
Fig. 2 be in Fig. 1 A to hardware structure for amplifying schematic diagram.
Fig. 3 be in Fig. 2 B-B to structural representation.
In figure, 1, the steel arch frame; 2, sprayed mortar preliminary bracing; 3, secondary lining; 4, junction plate; 5, locking anchor pole; 6, snap fastener; 7, metal connecting piece; 8, tie rod.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further elaborated.Referring to Fig. 1 to Fig. 3, a kind of high resistance-enlarging-type steel combination supporting frame, comprise steel arch frame 1, and the curved and two ends of described steel arch frame 1 are provided with junction plate 4, and junction plate 4 is provided with through hole, and the junction plate 4 of adjacent steel bow member 1 is by metal connecting piece 7 docking; The periphery of steel arch frame 1 is provided with snap fastener 6, and the both sides of snap fastener 6 are fixed with locking anchor pole 5.Between described steel arch frame 1 and another steel arch frame 1, by tie rod 8, be connected.Described steel arch frame 1 is " U " shaped steel, angle steel, channel-section steel or steel pipe.
embodiment:a better embodiment of the present utility model, referring to Fig. 1, Fig. 2 and Fig. 3, a kind of high resistance-enlarging-type steel combination supporting frame, adopt " U " section steel manufacture steel arch frame 1.Steel arch frame 1 is for arc and two ends all are fixedly welded with junction plate 4, and the Si Jiaochu of junction plate 4 is processed with through hole.Referring to Fig. 2, the junction plate 4 at steel arch frame 1 two ends is connected with the junction plate 4 on adjacent steel arch frame 1 by metal connecting piece 8, becomes an arc integral body; The thickness of junction plate 4, weld strength and metal connecting piece 8 all should with steel arch frame 1U shaped steel intensity equity.Steel arch frame 1 is provided with snap fastener 6 near junction plate 4 places, the interior shape of snap fastener 6 and the cross-sectional shape of steel arch frame 1 coupling, and the two ends of snap fastener 6 respectively are provided with locking anchor pole 5, and locking anchor pole 5 and country rock Surface Vertical, can directly insert in country rock.Be connected by tie rod 8 between steel arch frame 1 and another steel arch frame 1, by tie rod 8, adjacent two Pin steel arch framves 1 be connected as a single entity, tie rod 8 is uniformly distributed along steel arch frame 1, and two tie rod 8 spacings are 300～500mm.Be laid with successively from the inside to the outside sprayed mortar preliminary bracing 2 and secondary lining 3 in arc-shaped steel bow member 1.
The utility model such as passes through at the compound action of strong junction plate 4, snap fastener 6, locking anchor pole 5 and tie rod 8, increase the rigidity of combination supporting frame, can shift the stress of support bracket to the country rock deep, improve the certainly steady supporting capacity of country rock, effectively deformation controlling for rock surrounding gateways.
Claims (3)
1. one kind high resistance-enlarging-type steel combination supporting frame, comprise the steel arch frame, it is characterized in that: the curved and two ends of described steel arch frame are provided with junction plate, and junction plate is provided with through hole, and the junction plate of adjacent steel bow member docks by metal connecting piece; The periphery of steel arch frame is provided with snap fastener, and the both sides of snap fastener are fixed with the locking anchor pole.
2. a kind of high resistance-enlarging-type steel combination supporting frame according to claim 1, is characterized in that, between described steel arch frame and another steel arch frame, by tie rod, is connected.
3. a kind of high resistance-enlarging-type steel combination supporting frame according to claim 1, it is characterized in that: described steel arch frame is " U " shaped steel, angle steel, channel-section steel or steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320363423.0U CN203374285U (en) | 2013-06-24 | 2013-06-24 | High-resistance-increasing type combined steel supporting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320363423.0U CN203374285U (en) | 2013-06-24 | 2013-06-24 | High-resistance-increasing type combined steel supporting frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374285U true CN203374285U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201320363423.0U Expired - Lifetime CN203374285U (en) | 2013-06-24 | 2013-06-24 | High-resistance-increasing type combined steel supporting frame |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939118A (en) * | 2014-03-14 | 2014-07-23 | 中南大学 | Supporting device for roof advance support in process of tunneling in caving loose rock mass and application of supporting device |
| CN104265329A (en) * | 2014-09-29 | 2015-01-07 | 湖南科技大学 | Steel tube truss grouting reinforcing and supporting structure for high-stress weak broken surrounding rocks |
| CN104343461A (en) * | 2014-09-10 | 2015-02-11 | 西南交通大学 | Light supporting method applicable to gently-dipping-stratum massive rock tunnel |
| CN108480987A (en) * | 2018-06-04 | 2018-09-04 | 中机自动化装备股份有限公司 | A kind of tunnel steel arch frame mechanized production system |
| CN113356882A (en) * | 2021-05-21 | 2021-09-07 | 中铁十九局集团第五工程有限公司 | Large-section tunnel wall support and construction method |
-
2013
- 2013-06-24 CN CN201320363423.0U patent/CN203374285U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939118A (en) * | 2014-03-14 | 2014-07-23 | 中南大学 | Supporting device for roof advance support in process of tunneling in caving loose rock mass and application of supporting device |
| CN104343461A (en) * | 2014-09-10 | 2015-02-11 | 西南交通大学 | Light supporting method applicable to gently-dipping-stratum massive rock tunnel |
| CN104265329A (en) * | 2014-09-29 | 2015-01-07 | 湖南科技大学 | Steel tube truss grouting reinforcing and supporting structure for high-stress weak broken surrounding rocks |
| CN108480987A (en) * | 2018-06-04 | 2018-09-04 | 中机自动化装备股份有限公司 | A kind of tunnel steel arch frame mechanized production system |
| CN113356882A (en) * | 2021-05-21 | 2021-09-07 | 中铁十九局集团第五工程有限公司 | Large-section tunnel wall support and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |