CN2586816Y - Soft-rock roadway closed type U-shape steel retractable support - Google Patents
Soft-rock roadway closed type U-shape steel retractable support Download PDFInfo
- Publication number
- CN2586816Y CN2586816Y CN 02280861 CN02280861U CN2586816Y CN 2586816 Y CN2586816 Y CN 2586816Y CN 02280861 CN02280861 CN 02280861 CN 02280861 U CN02280861 U CN 02280861U CN 2586816 Y CN2586816 Y CN 2586816Y
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- China
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- shaped steel
- joint
- soft
- lateral wall
- metal
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- Expired - Fee Related
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Abstract
The utility model relates to a soft-rock roadway closed protective type U-shaped steel metal retractable support which belongs to the technical field of coal mine roadway supporting equipment. The utility model is designed for the purpose of solving the problems that the supporting equipment are not suitable for large-deformation soft-rock roadways and has bad stability, short service life and unsafety. The utility model is composed of top arch U-shaped steel, lateral wall U-shaped steel, inverted arch U-shaped steel, ribbed plates, straight legs, shoe plates and metal clamping cables, wherein, the upper parts of two pieces of the lateral wall U-shaped steel are circular arc shapes, and the lower parts of the two pieces of the lateral wall U-shaped steel are the straight legs of which the bottoms are welded with the shoe plates. The overlapping point of each U-shaped steel is fixed and connected by two metal clamping cables, and the external opening point of each U-shaped steel is welded with the ribbed plate. The utility model has the advantages of adapting to the support of the large-deformation soft-rock roadways, having a powerful arch supporting effect to the surface of roadway surrounding rock, improving the stability of the retractable support and having long service life, simple structure and stronger engineering practicability.
Description
Technical field: the utility model relates to a kind of soft-rock tunnel closed type U shaped steel metal compressibile support, belongs to the colliery tunnel support equipment technical field.
Background technology: at present, the existing U shaped steel metal compressibile support of using in the coal-mine soft-rock tunnel, generally fixing by card cable overlap joint by the above U shaped steel of three joints, section has arch, rectangle, trapezoidal etc. some kinds, shrink or the serious soft-rock tunnel of end distension for section, also be equipped with end arch, the problem that these U shaped steel metal compressibile supports exist is: 1, incompatibility large deformation soft-rock tunnel: for the large deformation soft-rock tunnel when the brushing section cuts country rock, because of U shaped steel openend is close to tunnel-surrounding, make country rock cut difficulty, and the violent expansion of country rock often makes support force unbalanced and produce torsional deformation, loses supporting effect earlier; 2, support stability remains to be improved: when mounting bracket, owing to himself structure, make the stability of mounting bracket cannot say for sure under the effect of surrouding rock deformation, often because of the not good generation excessive deformation of stress lost efficacy, also industrial accident can therefore occur by card.
Summary of the invention: for solving the problem of existing U shaped steel metal compressibile support incompatibility large deformation soft-rock tunnel, improve support stability and supporting effect and application life, designed soft-rock tunnel closed type U shaped steel metal compressibile support; The utility model is made of crown U shaped steel, lateral wall U shaped steel, end arch U shaped steel, floor, straight leg, footwear plate, metal card cable; Two lateral wall U shaped steel tops are circular arc, and the bottom is straight leg, straight leg bottom welding footwear plate; Mutual lap-joint between the mutual lap-joint of crown U shaped steel two ends and two joint lateral wall U shaped steel upper ends, two ends arch U shaped steel lower level-end and go up vertical end and the circular arc of two lateral wall U shaped steel and directly the mutual lap-joint of leg intersection fix by twice metal card cable, every joint U shaped steel outside opening end is welded with floor, floor can be angle steel or steel plate, when angle steel was welded in every joint U shaped steel outside opening place, the tip outwardly; When steel plate was welded in every joint U shaped steel outside opening place, the cross section was triangular in shape; The beneficial effects of the utility model, advantage and characteristics: 1, integral body is closed, compressibile support structure, can adapt to the support to the large deformation soft-rock tunnel; 2, compressibile support outer rim U shaped steel opening part is established the triangular-section and is cut protection structure, and to roadway surrounding rock surface strong arch support action, the outer rim wedge angle plays the large deformation country rock well cuts effect, has obviously improved the stress of support, has improved the supporting performance of support; 3, directly be with the lateral wall U Steel section member of footwear plate in the employing under the arc, improved the stability of compressibile support, obtain application life prolonging; 4, compressibile support is simple in structure, has stronger engineering practicability.
Description of drawings:
Accompanying drawing is a front view of the present utility model.
Among the figure: 1 crown U shaped steel, 2 lateral wall U shaped steel, 3 lateral wall U shaped steel, 4 ends arch U shaped steel, 5 ends arch U shaped steel, 6 straight legs, 7 footwear plates, 8 floors, 9 metal card cables.
The specific embodiment:
As shown in drawings, soft-rock tunnel closed type U shaped steel metal compressibile support is made of crown U shaped steel (1), lateral wall U shaped steel (2) (3), end arch U shaped steel (4) (5), floor (8), straight leg (6), footwear plate (7), metal card cable (9); Two lateral wall U shaped steel (2) (3) tops are circular arc, and the bottom is straight leg (6), straight leg (6) bottom welding footwear plates (7); During installation, mutual lap-joint between mutual lap-joint, two ends of crown U shaped steel (1) two ends and two joint lateral wall U shaped steel (2) (3) upper ends arch U shaped steel (4) (5) lower level-end and go up vertical end and the circular arc of two lateral wall U shaped steel (2) (3) and directly the mutual lap-joint of leg (6) intersection be fixedly connected by twice metal card cable (9), every joint U shaped steel outside opening place is welded with floor (8), available angle steel of floor (8) or steel plate, when being welded in every joint U shaped steel outside opening place with angle steel, the tip outwardly; When being welded in every joint U shaped steel outside opening place with steel plate, the cross section of steel plate and U shaped steel is triangular in shape; The soft-rock tunnel closed type U shaped steel metal compressibile support that is fixedly connected vertically should guarantee to be in the vertical plane, the 6 road floors (8) that weld between frame have guaranteed the stability of support transverse integral, after the installation, should guarantee that the outer rim of support contacts consolidation, do not interspace with country rock.
Claims (3)
1, a kind of soft-rock tunnel closed type U shaped steel metal compressibile support, constitute by a joint crown U shaped steel (1), two joint lateral wall U shaped steel (2) (3), two joint end arch U shaped steel (4) (5), straight leg (6), footwear plate (7), floor (8), metal card cable (9), it is characterized in that: two joint lateral wall U shaped steel (2) (3) tops are circular arc, the bottom is straight leg (6), straight leg (6) bottom welding footwear plates (7); Mutual lap-joint between mutual lap-joint, two ends arch U shaped steel (4) (5) lower level-end of crown U shaped steel (1) two ends and two joint lateral wall U shaped steel (2) (3) upper ends and go up vertical end and the circular arc of two lateral wall U shaped steel (2) (3) and directly the mutual lap-joint of leg intersection be fixedly connected by twice metal card cable (9), every joint U shaped steel outside opening place is welded with floor (8).
2, soft-rock tunnel closed type U shaped steel metal compressibile support as claimed in claim 1, it is characterized in that: floor (8) can be angle steel or steel plate, most advanced and sophisticated angle steel outwardly is welded in every joint U shaped steel outside opening place, steel plate is welded in every joint U shaped steel outside opening place, and the cross section of steel plate and U shaped steel is triangular in shape.
3, soft-rock tunnel closed type U shaped steel metal compressibile support as claimed in claim 1 is characterized in that: the soft-rock tunnel closed type U shaped steel metal compressibile support that is fixedly connected vertically is positioned at a vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280861 CN2586816Y (en) | 2002-11-01 | 2002-11-01 | Soft-rock roadway closed type U-shape steel retractable support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280861 CN2586816Y (en) | 2002-11-01 | 2002-11-01 | Soft-rock roadway closed type U-shape steel retractable support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2586816Y true CN2586816Y (en) | 2003-11-19 |
Family
ID=33743472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02280861 Expired - Fee Related CN2586816Y (en) | 2002-11-01 | 2002-11-01 | Soft-rock roadway closed type U-shape steel retractable support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2586816Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959063B (en) * | 2006-10-17 | 2010-10-13 | 中国矿业大学(北京) | Scalable steel pipe concrete support |
| CN103104267A (en) * | 2013-02-18 | 2013-05-15 | 范炳辉 | Soft rock roadway whole digging shield support |
| CN103615269A (en) * | 2013-12-11 | 2014-03-05 | 范炳辉 | Improved soft rock roadway integral tunneling protection support |
-
2002
- 2002-11-01 CN CN 02280861 patent/CN2586816Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959063B (en) * | 2006-10-17 | 2010-10-13 | 中国矿业大学(北京) | Scalable steel pipe concrete support |
| CN103104267A (en) * | 2013-02-18 | 2013-05-15 | 范炳辉 | Soft rock roadway whole digging shield support |
| CN103615269A (en) * | 2013-12-11 | 2014-03-05 | 范炳辉 | Improved soft rock roadway integral tunneling protection support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |