CN202325572U - Double-X-shaped reinforced trimming beam - Google Patents
Double-X-shaped reinforced trimming beam Download PDFInfo
- Publication number
- CN202325572U CN202325572U CN2011204596078U CN201120459607U CN202325572U CN 202325572 U CN202325572 U CN 202325572U CN 2011204596078 U CN2011204596078 U CN 2011204596078U CN 201120459607 U CN201120459607 U CN 201120459607U CN 202325572 U CN202325572 U CN 202325572U
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- Prior art keywords
- double
- beams
- shaped reinforced
- shaped
- trimming beam
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- Expired - Fee Related
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Abstract
The utility model discloses a double-X-shaped reinforced trimming beam which is applied to the underground roadway support of a mine. According to the double-X-shaped reinforced trimming beam, double-X-shaped reinforcing bars are arranged between two parallel steel plate beams, and through holes for connecting anchor rods are formed in the two steel plate beams. The double-X-shaped reinforced trimming beam consists of the two beams and a plurality of double-X-shaped reinforcing bars which are fixedly arranged on the beams by screws. Limiting holes are formed in the beams at constant intervals to realize the regular support of the anchor rods. The reinforcing bars have elongation which is higher than that of a steel strip, and can release certain pressure and realize flexible support, so that a steel plate is difficult to break, high in elasticity and strong in strength. When deformation pressure is produced, the double-X-shaped reinforcing bars make the stress distribution of the beams more uniform, and the whole double-X-shaped reinforced trimming beam is tightly attached to a top plate, so that ruptured rocks are prevented from being excessively deformed, are concentrated and do not fall. The double-X-shaped reinforced trimming beam is large in support area, difficult to damage and good in sidewall protection effect, and tensile strength and tearing strength are strengthened. The double-X-shaped reinforced trimming beam is adapted to the requirements of anchor rod supporting coal mine tunneling, and has broader popularization and application prospect.
Description
Technical field
The utility model relates to a kind of tunnel double X-type reinforcing bar joist, is to use the reinforcing bar joist about mine underworkings supporting, especially with big, flexible big, the anti-leak-stopping cash of top board contact area; Can adapt to large deformation ground and press, can not destroy reinforcing bar, effectively increase the bearing area of bolt support; Prevent turquoise inbreak between anchor pole; With the fixing double X-type reinforcing bar group of screw, be adapted to large deformation high-ground stress tunnel, played the double X-type reinforcing bar joist of protection beam effect.
Background technology
At present; The reinforcing bar ladder joist that Baokuang Dashuai Support Factry, Fuxing Industrial Corp. Yankuang Group produces, the patent No.: CN200620080476.1, this reinforcing bar ladder joist is to be made up of two reinforcing bars and some pallets; Pallet prolongs separation on the reinforcing bar length; Pallet both sides and reinforcing bar welding alleviate working strength of workers, can discharge certain pressure.Though have certain flexibility, allow top board to produce a certain amount of distortion, limit top board again and produce excessive distortion; Bar bending is stressed evenly, but owing to have only two reinforcing bars, flexural strength and area coverage are not too big; Cause to allow the roof deformation amount very big, contact area is little.Broken when top board, produce the crack during distortion and make top board produce excessive distortion in the place of not contact, cause anchor pole to get loose or produce that cash is failed whole supporting with Louing.When roof pressure is big, reinforcing bar ladder joist weld easy of crack, actual strength is low.
Summary of the invention
The purpose of the utility model: providing a kind of has many boltholes spaced apart with big, flexible big, the anti-leak-stopping cash of top board contact area, two crossbeams, makes the double X-type reinforcing bar joist of the regular supporting of anchor pole.
The utility model solves the technical scheme that its technical problem adopted: this double X-type reinforcing bar joist is in the middle of processing two steel plate crossbeams many anchor pole through hole and screw eyes spaced apart to be arranged; And between two crossbeams, process double X-type, be fixed on the crossbeam with key screw double X-type reinforcing bar group with reinforcing bar.
The beneficial effect of the utility model: owing to adopted such scheme, when the top board in tunnel was prone to fragmentation, the double X-type of double X-type reinforcing bar joist fixedly made its contact place not easy to crack with screw, has played the effect of holding top board.When rock deformation pressure, top board is prone to break, and fragmented rock is held by the double X-type reinforcing bar.Because double X-type reinforcing bar joist integral body is close to top board, contact area is big, thereby the balkstone after restriction is broken drops; The rock that breaks tightly is crowded together and does not collapse; The double X-type reinforcing bar can also discharge certain pressure simultaneously, makes integral body stressed evenly, reaches the purpose of whole machine balancing.The shear failure that has reduced the changing of the relative positions between the pallet and steel plate crossbeam when roof weighting and anchor rod body is produced, making becomes a more unified integral body between double X-type reinforcing bar joist, pallet, the anchor pole three.The through hole and the screw eye that connect anchor pole are only arranged in two steel plate crossbeams in the structure, and between two crossbeams with the fixing double X-type reinforcing bar group of screw, simple in structure.
Description of drawings
Below in conjunction with accompanying drawing and instance the utility model is further specified.
Fig. 1 is the elevation of the double X-type reinforcing bar joist of the utility model instance.、
Fig. 2 is the elevation of prior art reinforcing bar ladder joist.
1. steel plate crossbeams among the figure, the 2. through hole of connection anchor pole, 3. double X-type reinforcing bar group, 4. reinforcing bar, 5. pallet.
The specific embodiment
In instance shown in Figure 1; Having between the two steel plate crossbeams (1) that connect the sharp screw eye in the general hole of anchor pole (2) with the fixing double X-type reinforcing bar group (3) of screw; During use; Two steel plate crossbeams (1) and double X-type reinforcing bar group (3) are close together with top board, put into general hole (2) to anchor pole then, carry out the rule supporting.
Claims (2)
1. double X-type reinforcing bar joist constitutes by having the through hole that connects anchor pole and two steel plate crossbeams and some double X-type reinforcing bar groups of screw eye, it is characterized in that: processing double X-type with two crossbeams with the fixing reinforcing bar of screw.
2. double X-type reinforcing bar joist according to claim 1 is characterized in that: connect spaced being arranged on the two steel plate crossbeams of anchor pole through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204596078U CN202325572U (en) | 2011-11-04 | 2011-11-04 | Double-X-shaped reinforced trimming beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204596078U CN202325572U (en) | 2011-11-04 | 2011-11-04 | Double-X-shaped reinforced trimming beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325572U true CN202325572U (en) | 2012-07-11 |
Family
ID=46437554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204596078U Expired - Fee Related CN202325572U (en) | 2011-11-04 | 2011-11-04 | Double-X-shaped reinforced trimming beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325572U (en) |
-
2011
- 2011-11-04 CN CN2011204596078U patent/CN202325572U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121104 |