CN201627540U - Accurate sample frame for underground workshop palisades crane beam excavating drilling - Google Patents
Accurate sample frame for underground workshop palisades crane beam excavating drilling Download PDFInfo
- Publication number
- CN201627540U CN201627540U CN2010201612623U CN201020161262U CN201627540U CN 201627540 U CN201627540 U CN 201627540U CN 2010201612623 U CN2010201612623 U CN 2010201612623U CN 201020161262 U CN201020161262 U CN 201020161262U CN 201627540 U CN201627540 U CN 201627540U
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- CN
- China
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- sample frame
- guide pipe
- drilling
- palisades
- crane beam
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- Expired - Fee Related
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Abstract
The utility model provides an accurate sample frame for underground workshop palisades crane beam excavating drilling, which relates to a device for the positioning of underground workshop palisades crane beam excavating drilling in water-power engineering, and comprises a sample frame, wherein the sample frame is provided with a guide pipe coincident with the drilling axis, and the rear end of the guide pipe is provided with a limiting rod. The sample frame can accurately locate the position and depth of the drilling by virtue of the guide pipe and a limiting pipe, and avoid the occurrence of bore shifting as well as overexcavation and underexcavation, thus effectively guaranteeing the palisades crane beam excavating construction quality, and reducing the cost for backfilling concrete.
Description
Technical field
The utility model relates to the device of a kind of hydroelectric project underground power house crag crane girder excavation boring location, the accurate sample frame of particularly a kind of underground power house crag crane girder excavation boring.
Background technology
Crag crane girder tradition excavating device is common sample frame, and drilling rod can not accurately be located, and bore angle and hole depth are difficult to strict control, occur easily wafing the hole and cause super, owe to dig, can't guarantee the excavation Forming Quality of crag crane girder.
Summary of the invention
Technical problem to be solved in the utility model provides the accurate sample frame of a kind of underground power house crag crane girder excavation boring, can guarantee drilling quality, the hole or surpass, owe to dig of avoiding occurring wafing.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: the accurate sample frame of a kind of underground power house crag crane girder excavation boring, comprise the sample frame, and overlap with drilling axis on the sample frame and be provided with guide pipe, the guide pipe rear end is provided with gag lever post.
Described guide pipe is fitted as far as possible near an end and the bedrock surface of bedrock surface.
Described guide pipe length is 0.5～1.2m.
Described guide pipe apart from bedrock surface less than 2cm.
The accurate sample frame of a kind of underground power house crag crane girder excavation boring that the utility model provides, by the guide pipe that is provided with and the position-limiting tube accurately position and the degree of depth of location drilling, avoid occurring wafing hole and surpass, owe to dig, guarantee crag crane girder excavation construction quality effectively, also reduced the fill concrete cost.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples: Fig. 1 is the sample shelf structure front view of vertical drilling in the utility model; Fig. 2 is the sample shelf structure lateral view of vertical drilling in the utility model; Fig. 3 is the sample shelf structure front view of the utility model medium dip boring; Fig. 4 is the sample shelf structure lateral view of the utility model medium dip boring.
The specific embodiment
The accurate sample frame of a kind of underground power house crag crane girder excavation boring comprises sample frame 1, overlaps with drilling axis on the sample frame 1 and is provided with guide pipe 3, and guide pipe 3 rear ends are provided with gag lever post 2.
Described guide pipe 3 is fitted as far as possible near an end and the bedrock surface of bedrock surface.According to the angle of drilling axis and bedrock surface, an end of guide pipe 3 need be cut into the inclined-plane, fitting as far as possible with bedrock surface, thereby guarantees borehole accuracy.
Described guide pipe 3 length are 0.5～1.2m.
Described guide pipe 3 apart from bedrock surface less than 2cm.
Concrete construction sequence: 1, sample frame 1 sets up, select the Ф 40mm high-quality steel pipe of straight nothing distortion for use, set up vertical rod, cross bar and hound respectively according to the some position that measurement is emitted, and establish the vertical anchor rod of Ф 28m L=1.0～1.5m at the hound footing, anchor into basement rock degree of depth 30cm, with the hound firm welding, anchor rod, needling, hound spacing 1.75m, vertical rod, cross bar and cross bar adopt a word card connection, cross bar adopts cross buckle to be connected with vertical rod, and cross bar and hound, vertical rod and hound adopt universal linking to connect.
2, gag lever post 2 is installed, according to survey data, go out the position of gag lever post 2 at every vertical rod subscript with red paint, adopt a word card connection between the gag lever post 2, adopt cross buckle to be connected between gag lever post 2 and the vertical rod, the application level chi is checked whether level of gag lever post 2, checks errorless after, with gag lever post 2 and vertical rod fixation.
3, guide pipe 3 is installed, is adopted total powerstation accurately to emit 3 positions of each guide pipe, use the angle that instruments such as messenger wire and spirit level, protractor are checked guide pipes 3 simultaneously, confirms errorless after, adopt cross buckle that guide pipe 3 and cross bar are connected firmly.Guide pipe 3 length 0.5～1.2m, guide pipe 3 becomes angle according to the angle of inclination in the end-grain cutting near bedrock surface, to be close to bedrock surface as far as possible, bedrock surface can not be close in the part, requires guide pipe 3 to be not more than 2cm (in particular cases being not more than 5cm) apart from the distance of bedrock surface.
4, implement boring, will hand air drill drilling rod insert in the guide pipe 3 and hole, when rig head bottom stops to hole during to gag lever post 2, the drilling depth of this moment finishing is exactly the hole depth of designing requirement.
Claims (4)
1. the accurate sample frame of underground power house crag crane girder excavation boring comprises sample frame (1), and it is characterized in that: sample frame (1) upward overlaps with drilling axis and is provided with guide pipe (3), and guide pipe (3) rear end is provided with gag lever post (2).
2. the accurate sample frame of a kind of underground power house crag crane girder excavation boring according to claim 1, it is characterized in that: described guide pipe (3) is fitted as far as possible near an end and the bedrock surface of bedrock surface.
3. the accurate sample frame of a kind of underground power house crag crane girder excavation boring according to claim 1, it is characterized in that: described guide pipe (3) length is 0.5～1.2m.
4. the accurate sample frame of a kind of underground power house crag crane girder excavation boring according to claim 1 is characterized in that: described guide pipe (3) apart from bedrock surface less than 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201612623U CN201627540U (en) | 2010-04-16 | 2010-04-16 | Accurate sample frame for underground workshop palisades crane beam excavating drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201612623U CN201627540U (en) | 2010-04-16 | 2010-04-16 | Accurate sample frame for underground workshop palisades crane beam excavating drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627540U true CN201627540U (en) | 2010-11-10 |
Family
ID=43058933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201612623U Expired - Fee Related CN201627540U (en) | 2010-04-16 | 2010-04-16 | Accurate sample frame for underground workshop palisades crane beam excavating drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627540U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979458A (en) * | 2012-12-13 | 2013-03-20 | 中国水利水电第十四工程局有限公司 | Rock wall beam oblique surface smooth blasting punching guiding and positioning device |
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
| CN109750987A (en) * | 2019-02-15 | 2019-05-14 | 中国三峡建设管理有限公司 | Bottom plate Excavation Blasting control device and application method |
-
2010
- 2010-04-16 CN CN2010201612623U patent/CN201627540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979458A (en) * | 2012-12-13 | 2013-03-20 | 中国水利水电第十四工程局有限公司 | Rock wall beam oblique surface smooth blasting punching guiding and positioning device |
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
| CN109750987A (en) * | 2019-02-15 | 2019-05-14 | 中国三峡建设管理有限公司 | Bottom plate Excavation Blasting control device and application 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: 20101110 Termination date: 20180416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |