CN205206826U - Tunnel face blast construction system - Google Patents
Tunnel face blast construction system Download PDFInfo
- Publication number
- CN205206826U CN205206826U CN201521087038.3U CN201521087038U CN205206826U CN 205206826 U CN205206826 U CN 205206826U CN 201521087038 U CN201521087038 U CN 201521087038U CN 205206826 U CN205206826 U CN 205206826U
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- China
- Prior art keywords
- tunnel
- projector
- projection
- face
- template
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Abstract
The utility model relates to a tunnel face blast construction system. Main projection arrangement of device part and sighting rod device, projection arrangement includes the projection support, is equipped with projector and bearing compass on the projection support respectively, the projector is adjusted by adjust knob and throws the direction, be provided with the porthole template on the projection support, the porthole template is located the place ahead of projector, and light that the projector sent looks like to project in order to confirm big gun eye position on the face through the porthole template shape of a person or thing as seen from the back. This device can utilize projection equipment to realize that big gun eye position throws in the accuracy of face through the brand -new structure of design.
Description
Technical field
The utility model relates to civil engineering technical equipment field, specifically, relates to a kind of tunnel tunnel face blast working system.
Background technology
In China, most tunnel excavation driving adopts drill bursting construction usually, and drilling and blasting method realizes excavation rock by boring, powder charge, explosion.Borehole outline line must be pulled in excavation face, by drill-and-blast method figure hole placing position before boring.Snubber spacing, reliever array pitch and line-spacing and perimeter shothole spacing in borehole wherein, must determine by drill-and-blast method requirement.
In construction of explosion, the layout of borehole directly affects blasting quality, and explosion design is improper easily causes out break phenomenon.
But in tunnel tunnel face bursting work, the empirical method that adopts designs face the number of the boring hole and borehole layout more, usually cause the phenomenons such as the out break of tunnel surrounding body and tunnel cabling off-design route.
The above explosion drawback construction speed that both slowed down turn improves construction cost.
Therefore, be necessary to design a kind of device rapidly and efficiently can determining tunnel tunnel face borehole exact position, solve the problems referred to above.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of tunnel tunnel face blast working system.This device, by designing brand-new structure, can utilize projector equipment to realize the accurate projection of borehole position at face.
In order to reach above-mentioned purpose, the utility model adopts following technical scheme:
A kind of tunnel tunnel face blast working system, comprising:
Projection arrangement and sign post device, stream oriented device was connected by communicating pipe;
Described projection arrangement comprises projection bracket, projection bracket is respectively equipped with projector and bearing compass, and described projector is conditioned knob and regulates projecting direction;
Projection bracket is provided with borehole template, and borehole template is positioned at the front of projector, the light that projector sends by image projection to face after borehole template to determine borehole position.
Preferably, described projection bracket also has air level.
Preferably, described sign post device comprises mark post support, and mark post support is provided with prism.
Preferably, described mark post support also has air level.
While providing above-mentioned construction system, the utility model additionally provides and a kind ofly utilizes above-mentioned construction system to determine the method for borehole position, mainly comprises the steps:
A, on the boundary line on tunnel side wall and ground, determine three points;
B, centered by three points, to be greater than tunnel radius and the line segment being less than diameter draws circular arc for radius, three circular arcs are intersected between two respectively;
The intersection point of the circular arc gained of C, connection tunnel internal, makes the line segment of gained crossing with the line between two of the point of three in steps A, obtains two intersection points be positioned on tunnel center line, and by two intersection point lines, be tunnel center line;
D, projection arrangement and sign post device are arranged on tunnel center line;
Line parallel in F, the laser utilizing sign post device determination projection arrangement to send and tunnel;
G, remove sign post device, utilize projector to be projeced on tunnel tunnel face by the borehole layout in borehole template.
Preferably, three points in steps A are not point-blank.
Preferably, after completing steps C, by making stream oriented device be in same level communicating pipe, then carry out step D.
The beneficial effect that the utility model has is:
Can borehole layout on fast and convenient localized tunnel face, solve borehole and arrange in the improper constructing tunnel caused and backbreak, owe to dig phenomenon, effectively improve Tunnel Blasting tunneling construction precision, cost is low and using method is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is tunnel center line location schematic diagram in the utility model;
The projection schematic diagram of big gun hole image in Fig. 3 the utility model;
Fig. 4 projection arrangement structural representation;
Fig. 5 sign post device structural representation;
Wherein: 1, projection arrangement, 2, sign post device, 3, setting big gun hole, 4, tunnel center line, 5, communicating pipe;
6, circular arc, 7, centerline, 8, boundary point;
9, projection lamp, 10, borehole template, 11, tunnel tunnel face;
12, projector, 13, bearing compass, 14, adjusting knob, 15, air level, 16, projection bracket;
17, prism is justified, 18, auxiliary stand, 19, air level, 20, main support.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
Embodiment: a kind of tunnel tunnel face blast working system, its structure as Fig. 1,3, shown in 4 and 5: comprise projection arrangement 1 and sign post device 2, projection arrangement 1 and sign post device 2 were connected by communicating pipe 5;
Described projection arrangement 1 comprises projection bracket 16, projection bracket 16 is respectively equipped with projector 12, bearing compass 13 and air level 15, and described projector 12 is conditioned knob 14 and regulates projecting direction, and projector has projection lamp 9;
Be provided with borehole template 10 in the front of projector 12, borehole template 10 have design big gun hole.
Communicating pipe 5 can select linker flexible pipe.
Described sign post device 2 comprises mark post support, and mark post support is provided with round prism 17 and air level 19.Mark post support is made up of main support 20 and auxiliary stand 18, and the two coordinates the adjustment realizing height.
Shown in figure 2, the utility model additionally provides and a kind ofly utilizes above-mentioned construction system to determine the method for borehole position, is specially:
The interface on tunnel side wall and ground determines that three boundary points, 8, three boundary points 8 can not on same straight line;
Then, to be greater than tunnel radius and the line segment being less than diameter draws circular arc for radius centered by three boundary points 8, three circular arcs are intersected between two;
Connect the intersection point of two pairs of circular arc 6 gained of tunnel internal, two line segments of gained respectively with determine a little between line crossing, two centerline 7 finally obtained all are positioned on tunnel center line, after two centerline 7 being connected, can determine tunnel center line 4 position;
Under the prerequisite determining tunnel midline position, projection arrangement 1 and sign post device 2 leveling are arranged on tunnel center line, observe the height of liquid level in communicating pipe 5, then the two regulates, and makes the end face of the end face of projection bracket 16 and main support 20 be in same level;
The laser head utilizing projector 12 to carry, gets laser, makes laser beam hit exactly the target center of circle prism.The reason completing this step is: laser beam is considered as straight line, center, tunnel is also considered as straight line, when laser beam hits the bull's-eye, laser beam by chance can form a plane with tunnel center line, and by after the extended line indefinite extension of the extended line of laser beam and tunnel center line, the two also cannot intersect, and is used for guaranteeing that the projection of projector 12 is oppositely very close to setting projecting direction.
After completing above-mentioned steps, remove sign post device 2, open projection lamp 9 and assemble the borehole template 10 designed in advance, then the light that sends of projector 12 is after borehole template 10, has just projected on tunnel tunnel face 11 in amplifying shape.The position in big gun hole on image is exactly the optimum position in setting big gun hole 3.
Need to it should be noted that when tunnel is arc tunnel, need, according to projector 12 place tunnel location and tunnel trend, suitably to regulate the projecting direction of projector 12, realize curve explosion.
After have employed said structure and method, this device can the projection of realization design borehole position rapidly and efficiently, conveniently borehole layout can be positioned tunnel tunnel face, improve blasting quality by navigation system accurately.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein can when not departing from spirit or scope of the present utility model, realize in other embodiments, be not described in detail the part presented with partial enlargement, for prior art, do not repeat at this.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and feature.
Claims (4)
1. a tunnel tunnel face blast working system, is characterized in that, comprising:
Projection arrangement and sign post device, stream oriented device was connected by communicating pipe;
Described projection arrangement comprises projection bracket, projection bracket is respectively equipped with projector and bearing compass, and described projector is conditioned knob and regulates projecting direction;
Projection bracket is provided with borehole template, and borehole template is positioned at the front of projector.
2. tunnel tunnel face blast working system according to claim 1, is characterized in that described projection bracket also has air level.
3. tunnel tunnel face blast working system according to claim 1, it is characterized in that, described sign post device comprises mark post support, and mark post support is provided with prism.
4. tunnel tunnel face blast working system according to claim 3, is characterized in that, described mark post support also has air level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087038.3U CN205206826U (en) | 2015-12-23 | 2015-12-23 | Tunnel face blast construction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087038.3U CN205206826U (en) | 2015-12-23 | 2015-12-23 | Tunnel face blast construction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205206826U true CN205206826U (en) | 2016-05-04 |
Family
ID=55844551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087038.3U Expired - Fee Related CN205206826U (en) | 2015-12-23 | 2015-12-23 | Tunnel face blast construction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205206826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606001A (en) * | 2015-12-23 | 2016-05-25 | 山东大学 | Tunnel face blast working system and method |
-
2015
- 2015-12-23 CN CN201521087038.3U patent/CN205206826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606001A (en) * | 2015-12-23 | 2016-05-25 | 山东大学 | Tunnel face blast working system and method |
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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: 20160504 Termination date: 20191223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |