CN202731945U - Cable for underground coal mine tunnel U-shaped steel shed locking leg support - Google Patents
Cable for underground coal mine tunnel U-shaped steel shed locking leg support Download PDFInfo
- Publication number
- CN202731945U CN202731945U CN 201220433957 CN201220433957U CN202731945U CN 202731945 U CN202731945 U CN 202731945U CN 201220433957 CN201220433957 CN 201220433957 CN 201220433957 U CN201220433957 U CN 201220433957U CN 202731945 U CN202731945 U CN 202731945U
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- shaped steel
- cable
- coal mine
- canopy
- steel plate
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Abstract
The utility model discloses a cable for underground coal mine tunnel U-shaped steel shed locking leg support, and relates to the field of U-shaped steel shed reinforcing devices. The problems that legs (of a U-shaped steel shed) which are reinforced in a conventional mode are still subjected to deformation, a great quantity of materials and labors are demanded, and the like, are solved. According to the cable for the underground coal mine tunnel U-shaped steel shed locking leg support, a rectangular steel plate where a U-shaped steel is embedded into a convex sleeve ring is arranged at the middle of the cable, and a first end part and a second end part of the rectangular steel plate correspondingly have a first fixing hole and a second fixing hole respectively. The cable is simple in structure and convenient to operate, so that the support material is saved, and the working intensity of the working personnel is greatly reduced; and the overall bearing capability of bracket shed legs is greatly improved.
Description
Technical field
The utility model relates to a kind of U-shaped steel canopy bracing means, particularly relates to the card cable that the supporting of the U-shaped steel canopy lock of a kind of coal mine down-hole tunnel leg is used.
Background technology
Coal mine roadway runs into sometimes that rock mass strength is low, shale content is large and cause the rock mass general stability poor, general U-shaped steel canopy and the sprayed mortar of adopting carries out supporting to the tunnel, since exist buried depth large, press that height, lithology are poor, tomography and tectonic geology complicated condition, construction quality be difficult to the many reasons such as assurance, the tunnel namely begins distortion in the rear several months of construction, main manifestations is two to help the canopy leg to come compressive strain and spray-up cracking, and this just need to adopt the mode of locking the leg anchor pole to come the reinforced shed leg at the canopy leg of U-shaped steel canopy.The mode of at present the canopy leg of U-shaped steel canopy being locked the leg bolt anchorage is, every canopy leg is with four anchor poles and two vice card cable cover plates, and two vice card cable cover plates lay respectively at roadway floor 500mm and roadway floor 1500mm place.Two phenomenons of helping the canopy leg to be out of shape make moderate progress after adopting lock leg bolt anchorage canopy leg, but still have part canopy leg to have metaboly; Present lock leg bolt anchorage mode uses the structure of many anchor poles and card cable cover plate also very complicated on the other hand, and the support material that therefore expends is more, and increases difficulty to underground construction.
The utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, the card cable that provides a kind of U-shaped steel canopy lock of coal mine down-hole tunnel leg supporting simple in structure, easy to operate and the U-shaped steel canopy lock of Effective Raise leg supporting effect to use.
For achieving the above object, it is the rectangle steel plate of the collar of the middle part of the card cable projection that is provided with U-shaped steel embedding that the utility model provides the U-shaped steel canopy of a kind of coal mine down-hole tunnel lock leg card cable that supporting is used, and the end one of rectangle steel plate and end two are respectively arranged with fixing hole one, fixing hole two.
The length of described rectangle steel plate is 50 centimetres to 70 centimetres, and the width of rectangle steel plate is 8 centimetres to 12 centimetres.
The length of described rectangle steel plate is 63 centimetres, and the width of rectangle steel plate is 10 centimetres.
The utility model beneficial effect is: the card cable structure that the supporting of the U-shaped steel canopy lock of coal mine down-hole tunnel of the present utility model leg is used is simple, and has saved support material; Easy to operate, greatly reduce staff's labour intensity; Adopt the card cable to be connected and fixed so that U-shaped steel canopy canopy leg connects into integral body, strengthened the resistance to overturning of U-shaped canopy, greatly improved the bearing capacity of support canopy leg integral body, effectively solved the normal use that affects the tunnel because of the distortion of canopy leg.
Be described further below in conjunction with the accompanying drawing card cable that supporting is used to the U-shaped steel canopy lock of coal mine down-hole tunnel of the present utility model leg.
Description of drawings
Fig. 1 is card cable perspective view of the present utility model;
Fig. 2 is the use schematic diagram of the utility model card cable in the supporting of lock leg.
Among the figure: 1, U-shaped steel, 2, the collar, 3, end one, 4, end two, 5, fixing hole one, 6, fixing hole two, 7, anchor pole, 8, the card cable.
The specific embodiment
As shown in Figure 1, the card cable that the supporting of the U-shaped steel canopy of the coal mine down-hole tunnel of present embodiment lock leg is used is the rectangle steel plate of the collar 2 of the middle part of card cable 8 projection that is provided with U-shaped steel 1 embedding, and the end 1 of rectangle steel plate and end 24 are respectively arranged with fixing hole 1, fixing hole 26.The length of described rectangle steel plate is 63 centimetres, and width is 10 centimetres.
As shown in Figure 2, distance between U-shaped steel is set to consistent with the length of blocking cable 8 first when the coal mine down-hole tunnel inside wall is built the canopy leg of U-shaped steel canopy, the collar 2 that will block on the cable 8 apart from nearly 50 centimeters of roadway floor fastens U-shaped steel 1, then passed and pierce in the rock mass of tunnel sidewall by anchor pole 7 after the fixing hole of the fixing hole on the previous card cable 8 and a rear card cable 8 being overlapped and be fixed, every U-shaped steel 1 all is to be adopted to use the same method by card cable 8 to be fixed connection; Also adopted to use the same method by card cable 8 at every U-shaped steel 1 of distance roadway floor 150 centimeters equally and be fixed connection, on the sidewall in tunnel, just formed like this supporting of two rows by card cable 8 and 7 pairs of U-shaped steel canopy canopy legs of anchor pole, therefore strengthen the resistance to overturning of the canopy leg of U-shaped steel canopy, effectively solved canopy leg problem on deformation.
Claims (3)
1. the U-shaped steel canopy of coal mine down-hole tunnel is locked the card cable that the leg supporting is used, it is characterized in that, described card cable is provided with the rectangle steel plate of the collar of the projection that U-shaped steel embeds for the middle part of card cable, and the end one of rectangle steel plate and end two are respectively arranged with fixing hole one, fixing hole two.
2. the U-shaped steel canopy of coal mine down-hole tunnel according to claim 1 is locked the card cable that the leg supporting is used, and it is characterized in that the length of described rectangle steel plate is 50 centimetres to 70 centimetres, and the width of rectangle steel plate is 8 centimetres to 12 centimetres.
3. the U-shaped steel canopy of coal mine down-hole tunnel according to claim 2 is locked the card cable that the leg supporting is used, and it is characterized in that the length of described rectangle steel plate is 63 centimetres, and the width of rectangle steel plate is 10 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433957 CN202731945U (en) | 2012-08-10 | 2012-08-10 | Cable for underground coal mine tunnel U-shaped steel shed locking leg support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433957 CN202731945U (en) | 2012-08-10 | 2012-08-10 | Cable for underground coal mine tunnel U-shaped steel shed locking leg support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731945U true CN202731945U (en) | 2013-02-13 |
Family
ID=47657657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220433957 Expired - Fee Related CN202731945U (en) | 2012-08-10 | 2012-08-10 | Cable for underground coal mine tunnel U-shaped steel shed locking leg support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174435A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Roadway support method adopting U-shaped canopy frame support structure body |
| CN103724876A (en) * | 2013-12-20 | 2014-04-16 | 江西新胜新材料有限公司 | Polyvinyl chloride/chlorinated polyethylene blend and processing method thereof |
-
2012
- 2012-08-10 CN CN 201220433957 patent/CN202731945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174435A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Roadway support method adopting U-shaped canopy frame support structure body |
| CN103174435B (en) * | 2013-02-26 | 2014-12-03 | 中国矿业大学(北京) | Roadway support method adopting U-shaped canopy frame support structure body |
| CN103724876A (en) * | 2013-12-20 | 2014-04-16 | 江西新胜新材料有限公司 | Polyvinyl chloride/chlorinated polyethylene blend and processing method thereof |
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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: 20130213 Termination date: 20130810 |