CN202582395U

CN202582395U - Cavern-excavating wedge-cutting drilling guide rack

Info

Publication number: CN202582395U
Application number: CN 201220194990
Authority: CN
Inventors: 张建清; 黄家权; 张晓刚; 李哲朋; 张红兵
Original assignee: China Gezhouba Group Co Ltd
Current assignee: China Gezhouba Group Co Ltd
Priority date: 2012-05-03
Filing date: 2012-05-03
Publication date: 2012-12-05
Anticipated expiration: 2022-05-03

Abstract

The utility model discloses a cavern-excavating wedge-cutting drilling guide rack. The cavern-excavating wedge-cutting drilling guide rack comprises a support, wherein a sample rack is arranged on the support; a plurality of guide tubes are arranged on the sample rack; each guide tube is overlapped with an inclined drilling axis; and the positions, close to the two ends of the sample rack, of the guide tubes are connected with the sample rack through a steering clamp piece. By using the cavern-excavating wedge-cutting drilling guide rack provided by the utility model with the structure, the shortages that a hole site is deviated, the angle is not in place, two opposite cut holes are perforated and the like in the conventional cut hole construction are overcome; the guide rack is convenient to operate and install; the turnover rate is high; the cost is low; and the construction quality is high. By the cavern-excavating wedge-cutting drilling guide rack, the lift can be adjusted, the inclined angle of the hole site can be adjusted; the overall cavern-excavating wedge-cutting drilling guide rack is installed in place by one step, easy to install and convenient to operate, and can position accurately, so that the hole site of a drilled hole is not deviated, the angle is in place, and the two opposite cut holes are not perforated.

Description

Cavern excavation V-cut boring leading truck

Technical field

The utility model relates to cavern excavation slotting boring field, is particularly useful for the drilling construction appearance frame of cavern excavation V-cut.

Background technology

In big section cavern excavation construction, be designed with the Cut Blasting hole usually, promptly be under the condition of having only a scope of freedom, to ignite at first; Produce a little groove cave; Its effect is to increase the explosion free face, for the scope of freedom is created in other borings, and the demolition effect in big gun hole around improving.Common keyhole arrangement has wedge cutter, cone cut hole and shear hole etc.Select rational cutting method and parameter thereof according to country rock geological condition and development end size; Through site operation for many years; Several kinds of cutting methods commonly used and parameter in the cavern driving are optimized comparison; The result shows the slotting best results of V-cut, is more conducive to form the groove hole, so wedge cutter is used often in construction.

In the site operation normally driller rely on the years construction experience to carry out the pore-creating operation in Cut Blasting hole; Because the Cut Blasting hole is an inclined hole; Phenomenons such as hole biased poor, angle is not in place, two corresponding Cut Blasting hole perforation often occur and take place, when causing the explosion of face excavation drilling depth not enough, be easy to generate the blown-out shot of periphery hole, blind big gun, not only influence project progress; And brought potential safety hazard to construction, also caused manual work, machinery, temporal cost input when mending big gun.

Summary of the invention

The utility model technical problem to be solved provides a kind of cavern excavation V-cut boring leading truck; Can locate wedge shot hole drill hole; Overcome conventional keyhole construction and biased poor, the shortcomings such as angle is not in place, two corresponding keyhole perforation in hole occur; The operation simple installation, turnover rate is high, and cost is low, construction quality is high.

For solving the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of cavern excavation V-cut boring leading truck; Comprise support, support is provided with a kind frame, and the appearance frame is provided with many guide pipes; Described guide pipe overlaps with the drilling axis of inclination, and guide pipe is connected with the appearance frame through turning to fastener in the position near two ends.

Described guide pipe is the wedge shape of fitting as far as possible with bedrock surface near an end of bedrock surface.

The length of described guide pipe is 0.7～1.0m, apart from bedrock surface less than 10cm.

The column of described support is the liftable column;

In the described liftable column, cover tube column and interior pipe pivot bush unit, the cover tube column is provided with the identical pin-and-hole in a plurality of apertures with interior pipe, also is provided with the latch that cooperates with pin-and-hole.

A kind of cavern excavation V-cut boring leading truck that the utility model provides; Through adopting above-mentioned structure, overcome conventional keyhole construction and biased poor, the shortcomings such as angle is not in place, two corresponding keyhole perforation in hole occur, the operation simple installation; Turnover rate is high, and cost is low, construction quality is high.The utility model not only can be regulated the inclination angle of all right adjustment hole position of up-down, and integral installation settles at one go, installs simply, and is easy to operate, can accurately locate, and Kong Qikong position zero deflection, the angle that comes outbreak out puts in place, two corresponding keyholes do not have perforation.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Fig. 1 is the schematic top plan view of the utility model.

Fig. 2 looks sketch map for the utility model master.

Fig. 3 looks sketch map for the utility model right side.

Sketch map when Fig. 4 uses for the utility model construction.

Among the figure: support 1, appearance frame 2, guide pipe 3, cover tube column 4, interior pipe 5, latch 6, pin-and-hole 7 turns to fastener 8, drilling rod 9, air leg bores 10.

The specific embodiment

In Fig. 1-Fig. 3, a kind of cavern excavation V-cut boring leading truck comprises support 1; Support 1 is provided with kind frame 2; Appearance frame 2 is provided with many guide pipes 3, and described guide pipe 3 overlaps with the drilling axis that tilts, and guide pipe 3 is connected with appearance frame 2 through turning to fastener 8 in the position near two ends.

Described guide pipe 3 is the wedge shape of fitting as far as possible with bedrock surface near an end of bedrock surface.

The length of described guide pipe 3 is 0.7～1.0m, apart from bedrock surface less than 10cm.

The column of described support 1 is the liftable column, in the described liftable column, and cover tube column 4 and interior pipe 5 pivot bush units, cover tube column 4 is provided with the identical pin-and-hole in a plurality of apertures 7 with interior pipe 5, also is provided with the latch 6 that cooperates with pin-and-hole 7.Structure thus, the height that can adjust support 1 is to adapt to the position, hole of boring.

In Fig. 4; According to cavern's design excavated section size, the design size of boring quick-fried chassis framework and the position of blasting Design wedge cutter; Confirm the utility model support 1 size; Confirm to form the size of each parts of support, such as the size of appearance frame 2, cover tube column 4, interior pipe 5, the number of plies of pin-and-hole 7.

In cover tube column 4 and relevant position draw-bore 7 above the interior pipe 5, pack into interior pipe 5 in the tube column 4, it is fixing to inject pin hole 7 to latch 6, forms liftable support 1;

Confirm the angle of guide pipe 3 according to blasting Design, through instrument check adjust to the right place after, and with turning to fastener 8 to be fixed; The described fastener 8 that turns to is the connector of adjustable angle, thereby turns to the position of fastener 8 to adjust the angle of inclination of guide pipe 3 through adjustment.

According to the utility model position, confirm the drilling rod drilling depth, and on drilling rod 9, do spacing sign that after support 1 was in place, air leg bores 10 and passes guide pipe 3 and hole, and changes another guide pipe 3 borings after boring finishes, and was intact up to row's wedge shape explosion hole drill.

Latch 6 is extracted from pin-and-hole 7, appearance frame 2 is overall increased to the last layer height, latch 6 is inserted in another layer pin-and-hole 7 fix again, carry out the boring of last layer height wedge shape blast hole with the lifting facility.

Claims

1. cavern excavation V-cut boring leading truck; Comprise support (1); Support (1) is provided with a kind frame (2); It is characterized in that: appearance frame (2) is provided with many guide pipes (3), and described guide pipe (3) overlaps with the drilling axis that tilts, and guide pipe (3) is connected with appearance frame (2) through turning to fastener (8) in the position near two ends.

2. a kind of cavern excavation V-cut boring leading truck according to claim 1, it is characterized in that: described guide pipe (3) is the wedge shape of fitting as far as possible with bedrock surface near an end of bedrock surface.

3. a kind of cavern excavation V-cut boring leading truck according to claim 2, it is characterized in that: the length of described guide pipe (3) is 0.7～1.0m, apart from bedrock surface less than 10cm.

4. a kind of cavern excavation V-cut boring leading truck according to claim 1, it is characterized in that: the column of described support (1) is the liftable column;

In the described liftable column, cover tube column (4) and interior pipe (5) pivot bush unit, cover tube column (4) is provided with the identical pin-and-holes in a plurality of apertures (7) with interior pipe (5), also is provided with the latch (6) that cooperates with pin-and-hole (7).