CN203559911U - Device for protecting heading face from rib spalling - Google Patents
Device for protecting heading face from rib spalling Download PDFInfo
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- CN203559911U CN203559911U CN201320664372.5U CN201320664372U CN203559911U CN 203559911 U CN203559911 U CN 203559911U CN 201320664372 U CN201320664372 U CN 201320664372U CN 203559911 U CN203559911 U CN 203559911U
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- protecting
- head
- section
- heading face
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Abstract
The utility model discloses a device for protecting a heading face from rib spalling which comprises an inverted wedgee device, wherein the inverted wedge device comprises a long rod, one end of the long rod is inclined, an inclined plane is cut at the end, and a bulge with a trapezoidal cross section is arranged at the other end of the long rod. The inverted wedge device of the device for protecting the heading face from rib spalling can be recycled, the site operation is safe and convenient, and the device for protecting the heading face from rib spalling is simple and practical.
Description
Technical field
The utility model relates to the Deep Soft Rock tunnelling wall caving Prevention Technique of meeting head on, and is specifically related to a kind of boring head wall caving protector.
Background technology
Driving face is met head on maximum security threat except strengthening roof control, also need the exposed section of meeting head on to seal, the section of meeting head on after construction is out exposed, and aspect ratio is larger, if met head on, positive section wall supporting effect is bad, and the spoil that drops is easy to injure by a crashing object constructor.
Utility model content
The utility model provides a kind of boring head wall caving protector, by the device of the falling wedge-type sealing section of meeting head on, can effectively control country rock and come off and prevent from meeting head on section wall caving, for the driving face safe construction of meeting head on provides guarantee.
The technical solution adopted in the utility model is:
Boring head wall caving protector, is characterized in that: include the device of falling wedge-type, the device of falling wedge-type includes a stock, and one end of stock tilts to have cut an inclined-plane, and it is trapezoidal projection that the other end of stock is provided with a cross section.
Compared with the prior art, the utility model beneficial effect is embodied in:
The enclosure method of meeting head on of former old-fashioned driving face is: strong threaded anchor rod or the leading pipe-seam type anchor rod such as directly adopt to seal, once meet head on, adopt after sealing in this way, just cannot remove, the section sealing device of meeting head on while blowing out is all crumbled by big gun, causes waste.
The device of falling wedge-type of the present utility model can recycle, and execute-in-place is safe, convenient, simple, practical; The digging laneway comparatively soft phenomenon of section rock of meeting head on, has carried out leading reinforcement measure to the section of meeting head on, and since enforcement, effect is very obvious, really can play the effect of safeguard protection.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of boring head wall caving protector of the present utility model and anchor pole.
Fig. 2 is the installation schematic diagram of boring head wall caving protector of the present utility model.
The specific embodiment
As shown in Figure 1, boring head wall caving protector, includes the device of falling wedge-type, and the device of falling wedge-type includes a stock 1, and one end of stock 1 tilts to have cut an inclined-plane 2, and it is trapezoidal projection 3 that the other end of stock 1 is provided with a cross section.
As shown in Figure 1, 2, utilize boring head wall caving protector to driving face meet head on sealing method as follows:
(1) adopt anchor pole 4 and net sheet to the spoil within the scope of the following 1.5m of top board, to carry out closed reinforcement to the top board of meeting head on, wherein one end of anchor pole 4 is provided with circular cone shaped steel 5;
(2) after explosion, examine meet head on section and top board situation, first will first tap before entering work plane, look for cash alive, crag;
(3) according to the lithology situation of meeting head on, at the section of meeting head on, arrange appropriate eyelet, hole depth is generally at 1.0m～1.5m;
(4) eyelet arrange after at the pre-processed net sheet 6 of the section layer overlay of meeting head on, and the section device of falling wedge-type of meeting head on is installed;
(5) with sledgehammer, the device of falling wedge-type wedge is entered in eyelet, make it more firm;
(6) finally meet head on perforating, powder charge are laid down the locking device of falling wedge-type of meeting head on after medicine installs, and at this moment just can blow out by line, then enter next circulation.
Every 25 yuan of pipe-seam type anchor rods, every 50 yuan of net sheets, each 3 yuan of anchor pole cover plates.0.7 meter of every cyclic advance, needs 9 of pipe-seam type anchor rods, 2 of net sheets, 9 of anchor pole cover plates.Every circulation cost advance support Master Cost is 9 * 25+2 * 50+9 * 3=352 unit.Master Cost 352 * 3=1056 unit is saved in three circulations of every circle class altogether.Within one month, save ten thousand yuan of Master Cost 1056 * 31=3.2736.Ten thousand yuan of the Master Cost 3.2736 * 12=39.2832 saving for a year.
The device of falling wedge-type after improvement can reuse does not have loss.
Claims (1)
1. boring head wall caving protector, is characterized in that: include the device of falling wedge-type, the device of falling wedge-type includes a stock, and one end of stock tilts to have cut an inclined-plane, and it is trapezoidal projection that the other end of stock is provided with a cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664372.5U CN203559911U (en) | 2013-10-25 | 2013-10-25 | Device for protecting heading face from rib spalling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664372.5U CN203559911U (en) | 2013-10-25 | 2013-10-25 | Device for protecting heading face from rib spalling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559911U true CN203559911U (en) | 2014-04-23 |
Family
ID=50509638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664372.5U Expired - Fee Related CN203559911U (en) | 2013-10-25 | 2013-10-25 | Device for protecting heading face from rib spalling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541749A (en) * | 2013-10-25 | 2014-01-29 | 安徽恒源煤电股份有限公司祁东煤矿 | Driving head-on coal slide protective device and head-on closing method of driving working face |
-
2013
- 2013-10-25 CN CN201320664372.5U patent/CN203559911U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541749A (en) * | 2013-10-25 | 2014-01-29 | 安徽恒源煤电股份有限公司祁东煤矿 | Driving head-on coal slide protective device and head-on closing method of driving working face |
| CN103541749B (en) * | 2013-10-25 | 2016-03-02 | 安徽恒源煤电股份有限公司祁东煤矿 | Boring head wall caving protector and driving face are met head on the method closed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |