CN207622748U - A kind of high-precision Tunnel construction survey backsight forced centering apparatus - Google Patents
A kind of high-precision Tunnel construction survey backsight forced centering apparatus Download PDFInfo
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- CN207622748U CN207622748U CN201721380781.7U CN201721380781U CN207622748U CN 207622748 U CN207622748 U CN 207622748U CN 201721380781 U CN201721380781 U CN 201721380781U CN 207622748 U CN207622748 U CN 207622748U
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- stainless steel
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- construction survey
- tunnel
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Abstract
The utility model discloses a kind of high-precision Tunnel construction survey backsight forced centering apparatus, including stainless steel plate, stainless steel connector, expansion bolt and circle prism form, the stainless steel plate includes upper plate and lower plate, first positioning hole is offered on upper plate, second location hole is offered in lower plate, upper plate and lower plate group become L-type structure, and 72 ° of long 21cm of dog-ear, and thickness is 4mm, it is mainly used in railway tunnel, the construction survey process of vcehicular tunnel and water conservancy tunnel, this research and development product can carry out high-precision direction and distance controlling during Tunnel construction survey, construction survey accident rate can be reduced and ensure that tunnel smoothly penetrates through.
Description
Technical field
The utility model is related to affiliated engineering construction field, specially a kind of high-precision Tunnel construction survey backsight pressure pair
Middle device.
Background technology
During constructing tunnel, the important function for playing and guiding direction of advance is measured, current Tunnel construction survey is equal
Control point will be measured to be embedded on inverted arch or bottom plate, centering leveling is carried out respectively with total powerstation and prism, with putting in total powerstation
Egf block carries out construction survey operation after being oriented, and each setting-out process is required to look for point, centering, leveling, backsight, inspection of building a station
Core（It calculates and compares）, record, setting-out, the work such as check again, job engineering is complicated, and action is more.Current technology is deposited
The problem of and defect have：
(1), ground control point is easily destroyed or disturbs；
(2), survey station, backsight, check point position are fixed, and sight is observed in operation process easily by screenings such as trolley, rack, vehicles
Gear, it is insufficient that survey station point sets station flexibility；
(3), easy-to-search or cleaning work amount be not big for ground control point, and time is long before operation, per subjob survey station, after
It is required to leveling, centering depending on, check point, heavy workload, efficiency are low；
(4), backsight accuracy of alignment is low（Centering nominal accuracy ± 1mm）；
(5), operating personnel and equipment are more（3 measurement operating personnels are generally required per subjob, need to carry a whole station
Instrument, two tripods, two sets of prisms, a setting-out bar；）
(6), control stake waste is measured big；
(7), mark stability checks single, and precision index is not intuitive.
Utility model content
The purpose of this utility model is to provide a kind of high-precision Tunnel construction survey backsight forced centering apparatus, to solve
The problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions：
A kind of high-precision Tunnel construction survey backsight forced centering apparatus, including stainless steel plate and stainless steel connector group
At, the stainless steel plate includes upper plate and lower plate, and first positioning hole is offered on upper plate, second location hole is offered in lower plate,
Upper plate and lower plate group become L-type structure；
The stainless steel connector includes clamp, circular groove, screw rod, protrusion and external screw thread, and clamp and screw rod
One end connects, and the external screw thread that screw rod is externally provided with is threadedly coupled for corresponding with the first positioning hole of upper plate, the middle part of the screw rod
It is socketed with protrusion, screw rod is projected into and offers circular groove between one end of clamp.
Preferably, the second location hole is connected with expansion bolt, and the clamp and circular groove matching are connected with circle
The bottom of prism, the expansion bolt include limited block, long threaded rod, sleeve and the first nut, are socketed on long threaded rod
Cylinder, and one end of long threaded rod is fixedly connected with limited block, what the other end of the long threaded rod was opened up be threaded with the
One nut, long threaded rod is inserted into second location hole to be limited by the first nut.
Preferably, there are two expansion bolt and a stainless steel connectors for installation on each stainless steel plate.
Preferably, the long 5.5cm of the stainless steel connector, the hexahedron of the diameter phi 20 of cross section.
Preferably, 72 ° of long 21cm of the dog-ear formed between the upper plate and lower plate, and thickness is 4mm.
Compared with prior art, the utility model has the beneficial effects that：The pressure pair of this high-precision Tunnel construction survey backsight
Middle apparatus structure is simple, is used cooperatively by the way that stainless steel plate, stainless steel connector, expansion bolt and circle prism is added, solution
Technical barrier：
(1), backsight point accuracy of alignment is improved to 0.2mm（Stainless steel connector is connect using screw thread with stainless steel plate circular hole,
It repeats to be better than 0.2mm to precision）；
(2), 72 ° of stainless steel plate dog-ear, lateral part basic horizontal after burying ensure geometric center after rearscope rotation
Consistency；
(3) the reachable 200m of effective setting-out distance in tunnel, is set behind station using the present apparatus；
Advantageous effect is reached：
(1), complete to orient using resection, change operating type；
(2), any position sets station in operating area, does not need centering, flexibly, efficiently, succinctly；
(3) construction control points, are embedded in tunnel wall, change the positions control point Mai Dian in hole, be conducive to point protection and
It searches；
(4), set station precision index to directly display, avoid calculating and comparison.
It is mainly used in the construction survey process of railway tunnel, vcehicular tunnel and water conservancy tunnel, this research and development product is in tunnel
High-precision direction and distance controlling can be carried out during construction survey, construction survey accident rate can be reduced and ensure that tunnel smoothly passes through
It is logical.
Description of the drawings
Fig. 1 is the stainless steel plate structural schematic diagram in the utility model；
Fig. 2 is stainless steel connector structural schematic diagram；
Fig. 3 is expansion bolt structural schematic diagram；
Fig. 4 is circle prism structure schematic diagram；
Fig. 5 is tunnel just branch structural schematic diagram；
Fig. 6 is short abutment wall structural schematic diagram；
Fig. 7 is tunnel two-lining structure schematic diagram；
Fig. 8 is stainless steel connector and circle prism assembling schematic diagram.
In figure：Upper plate 1, lower plate 2, first positioning hole 3, second location hole 4, clamp 5, circular groove 6, screw rod 7, protrusion
8, external screw thread 9, limited block 10, long threaded rod 11, sleeve 12, the first nut 13, circle prism 14.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 8 are please referred to Fig.1, the utility model provides a kind of technical solution：
A kind of high-precision Tunnel construction survey backsight forced centering apparatus, including stainless steel plate and stainless steel connector group
At, it is installed on each stainless steel plate there are two expansion bolt and a stainless steel connector, the long 5.5cm of stainless steel connector,
The hexahedron of the diameter phi 20 of cross section, stainless steel plate include upper plate 1 and lower plate 2, and first positioning hole 3 is offered on upper plate 1,
Second location hole 4 is offered in lower plate 2,2 groups of upper plate 1 and lower plate become L-type structure, the dog-ear formed between upper plate 1 and lower plate 2
72 ° of long 21cm, and thickness is 4mm.
Stainless steel connector includes clamp 5, circular groove 6, screw rod 7, protrusion 8 and external screw thread 9, and clamp 5 and screw rod 7
One end connection, the external screw thread 9 that screw rod 7 is externally provided with is used for and the first positioning hole 3 of upper plate 1 is corresponded to and is threadedly coupled, in screw rod 7
Portion is socketed with protrusion 8, and protrusion 8 offers circular groove 6 to screw rod 7 between one end of clamp 5.
Second location hole 4 is connected with expansion bolt, and clamp 5 and circular groove 6 match the bottom for being connected with round prism 14,
Expansion bolt includes limited block 10, long threaded rod 11, sleeve 12 and the first nut 13, and sleeve 12 is socketed on long threaded rod 11,
And one end of long threaded rod 11 is fixedly connected with limited block 10, what the other end of long threaded rod 11 was opened up is threaded with first
Nut 13, long threaded rod 11 is inserted into second location hole 4 to be limited by the first nut 13.
This research and development product is by the 72 ° long 21cm stainless steel plates of thick 4mm dog-ears（See Fig. 1）With the six of long 5.5cm diameter phis 20
Face body stainless steel connector（See Fig. 2）Composition, stainless steel plate use the expansion bolt of long 5cm~10cm（See Fig. 3）It is fixed on tunnel
On road wall（Just branch or two linings）, stainless steel connector connect by the screw thread of lower part with stainless steel plate, by the recessed of top
Slot and circle prism 14（See Fig. 4）Connection, coordinate total powerstation and 4 round prisms 14 in region any position with the shape of resection
Formula carries out construction survey operation, and total powerstation does not need centering, and any position is set up, circle 14 plug and play of prism, arbitrary rotation side
To geometric center is consistent, measurement accuracy index real-time display.
During Tunnel construction survey, this research and development product coordinates total powerstation and 4 operation areas in tunnel of round prism 14
Domain any position is with resection（Free Station）Form carry out construction survey operation, have that precision is high, it is more to check condition, directly
The clear superiorities such as sight, efficient, can play the role of and effect is as follows：
(1) the control point, in tunnel wall is survivable or disturbs；
(2), station location is set flexible, sight is not easily susceptible to block when construction survey；
(3), short per subjob time, easy to operate, labor intensity is low, if website only needs leveling（It does not need
Centering）, need not closely illuminate, not need intercom, action is few, efficient；
(4), rearscope is forced centering, and using being screwed, the error of centralization ± 0.2mm improves 5 compared with ground control point
~10 times, construction lofting is apart from longest up to 200m；
(5), each construction lofting operation only needs 2 operating personnels that work can be completed, and carries a total powerstation and three feet
Frame, four prism heads, a setting-out bar；
(6) it is more, to check condition, the round prism 14 of backsight four, instrument carries Free Station program, when building a station in error it is direct
It has been shown that, precision index are intuitive；
(7), the stainless steel device is fixed on using expansion bolt in tunnel wall, is repeated and is utilized, and service efficiency is high；
(8), period is directly engraved on stainless steel device, need not in addition be sprayed；
(9) the metastable position of country rock may be selected when, setting station, ensure the safety for measuring operating personnel, it is logical not influence vehicle
Row improves overall operation efficiency.
The technology of the application and the improvement of the prior art and effect are mainly reflected in following three aspects
One, it reduces and measures accident probability
1, backsight period and locality specific are reduced with wrong point（Or after point movement）Lead to the probability of measurement accident；
2, error of building a station directly displays, and it is more to check condition, and sensitivity is high；
3, orientation accuracy is high, and setting-out is more accurate (more accurate to excavation, two linings, groove control)；
Two, operating efficiency is improved
1, any position is built a station, and is surveyed sight and is not easily susceptible to block, is not influenced by vehicular traffic and personnel；
2, backsight point plug and play does not need centering, leveling, reusable；
Three, operational security is improved
1, optional comparatively safe place sets station and measures operation, and avert danger source, improves operating personnel's safety；
2, survey station data error directly displays, and rough error occurs and timely updates, and improves Information Security.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of high-precision Tunnel construction survey backsight forced centering apparatus, including stainless steel plate and stainless steel connector composition,
It is characterized in that：The stainless steel plate includes upper plate（1）And lower plate（2）, upper plate（1）On offer first positioning hole（3）, lower plate
（2）On offer second location hole（4）, upper plate（1）And lower plate（2）Group becomes L-type structure；
The stainless steel connector includes clamp（5）, circular groove（6）, screw rod（7）, protrusion（8）And external screw thread（9）, and block
Head（5）And screw rod（7）One end connection, screw rod（7）The external screw thread being externally provided with（9）For and upper plate（1）First positioning hole（3）
It is corresponding to be threadedly coupled, the screw rod（7）Middle part be socketed with protrusion（8）, protrusion（8）To screw rod（7）Close to clamp（5）One end
Between offer circular groove（6）.
2. a kind of high-precision Tunnel construction survey backsight forced centering apparatus according to claim 1, it is characterised in that：Institute
State second location hole（4）It is connected with expansion bolt, the clamp（5）And circular groove（6）Matching is connected with round prism（14）
Bottom, the expansion bolt includes limited block（10）, long threaded rod（11）, sleeve（12）With the first nut（13）, long screw thread
Bar（11）On be socketed with sleeve（12）, and long threaded rod（11）One end be fixedly connected with limited block（10）, the long threaded rod
（11）The other end opened up be threaded with the first nut（13）, long threaded rod（11）It is inserted into second location hole（4）In
Pass through the first nut（13）Limit.
3. a kind of high-precision Tunnel construction survey backsight forced centering apparatus according to claim 1, it is characterised in that：Often
There are two expansion bolt and a stainless steel connectors for installation on a stainless steel plate.
4. a kind of high-precision Tunnel construction survey backsight forced centering apparatus according to claim 1, it is characterised in that：Institute
State the long 5.5cm of stainless steel connector, the hexahedron of the diameter phi 20 of cross section.
5. a kind of high-precision Tunnel construction survey backsight forced centering apparatus according to claim 1, it is characterised in that：Institute
State upper plate（1）And lower plate（2）Between 72 ° of long 21cm of dog-ear for forming, and thickness is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721380781.7U CN207622748U (en) | 2017-10-25 | 2017-10-25 | A kind of high-precision Tunnel construction survey backsight forced centering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721380781.7U CN207622748U (en) | 2017-10-25 | 2017-10-25 | A kind of high-precision Tunnel construction survey backsight forced centering apparatus |
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| CN207622748U true CN207622748U (en) | 2018-07-17 |
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ID=62826313
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| CN201721380781.7U Active CN207622748U (en) | 2017-10-25 | 2017-10-25 | A kind of high-precision Tunnel construction survey backsight forced centering apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855612A (en) * | 2019-04-02 | 2019-06-07 | 中铁十二局集团有限公司 | A kind of forced centering structure and its centering method for tunnel traverse survey inside tunnel |
| CN110332928A (en) * | 2019-08-14 | 2019-10-15 | 中铁隧道局集团有限公司 | A kind of mobile forced centering tray rack and its application method |
-
2017
- 2017-10-25 CN CN201721380781.7U patent/CN207622748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855612A (en) * | 2019-04-02 | 2019-06-07 | 中铁十二局集团有限公司 | A kind of forced centering structure and its centering method for tunnel traverse survey inside tunnel |
| CN110332928A (en) * | 2019-08-14 | 2019-10-15 | 中铁隧道局集团有限公司 | A kind of mobile forced centering tray rack and its application method |
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