CN212378707U - High-precision shield tail clearance measuring device - Google Patents
High-precision shield tail clearance measuring device Download PDFInfo
- Publication number
- CN212378707U CN212378707U CN202021540159.XU CN202021540159U CN212378707U CN 212378707 U CN212378707 U CN 212378707U CN 202021540159 U CN202021540159 U CN 202021540159U CN 212378707 U CN212378707 U CN 212378707U
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- Prior art keywords
- shield
- tail clearance
- shield tail
- shield shell
- collector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006260 foam Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a shield tail clearance measuring device of high accuracy, including shield shell (1) and section of jurisdiction (2) that mutually support, form shield tail clearance (3) between shield shell (1) inner wall and the section of jurisdiction (2) outer wall, be equipped with a set of collector (4) on shield shell (1), the collection mouth of each collector (4) is just facing shield tail clearance (3) and sets up, and collector (4) connect in a protection box (5), protection box (5) are fixed on shield shell (1) inner wall; the collectors (4) are three cameras which are respectively arranged right above and at two sides of the shield shell (1), and the connecting line between the collectors (4) at the two sides is vertical to the connecting line between the center of the shield shell (1) and the collector (4) right above. The utility model discloses an advantage has improved measuring real-time and accuracy, can measure shield tail clearance safely, accurately, and degree of automation is high, can in time supply the staff to master the condition in shield tail clearance effectively.
Description
Technical Field
The utility model belongs to the technical field of subway tunnel construction technique and specifically relates to a shield tail clearance measurement device of high accuracy.
Background
The shield method is a construction method for underground excavation of a tunnel in a soil layer or a rock layer below the earth surface. In construction, a shield tail gap is an important technical index in the construction of a shield machine, and is formed between the inner wall of the shield tail and the outer wall of a corresponding segment, so that whether the segment of the shield machine can be normally installed and the deviation rectifying posture of the shield machine can be influenced, and further the subsequent construction plan arrangement of equipment and the construction quality of a tunnel are influenced.
The shield tail clearance measurement object is the distance between shield tail and the section of jurisdiction, because shield tail and section of jurisdiction are relative motion, adopts mechanical type contact device to carry out the distance measurement in shield tail clearance, receives the influence of construction disturbance easily for the measuring error in shield tail clearance is great, and measuring equipment is easy wearing and tearing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve the problem that current shield tail clearance measuring error is big, the precision is low, measuring equipment easily wears and teares, provides a shield tail clearance measuring device of high accuracy, can improve measuring real-time and accuracy, can measure shield tail clearance safely, accurately, and degree of automation is high, can in time supply the staff to master the condition in shield tail clearance effectively.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-precision shield tail clearance measuring device comprises a shield shell and a duct piece which are matched with each other, wherein the duct piece is arranged in an inner cavity of the shield shell, a shield tail clearance is formed between the inner wall of the shield shell and the outer wall of the duct piece, a group of collectors are arranged on the shield shell, a collecting port of each collector is arranged right opposite to the shield tail clearance, the collectors are connected in a protection box, and the protection box is fixed on the shield shell and used for protecting the collectors from dust, soil and the like and reducing construction disturbance;
the three collectors are arranged under the ARM platform and are respectively arranged right above and at two sides of the shield shell, and a connecting line between the collectors at the two sides is vertical to a connecting line between the center of the shield shell and the collector right above.
Further, a buffer layer is connected to the outer portion of the protection box, so that abrasion between the protection box and the shield shell is reduced.
Further, the buffer layer is an EPS foam buffer board.
Furthermore, a group of buffer springs which are uniformly distributed are connected between the protection box and the collector so as to reduce the adverse effect of construction on data collected by the collector.
Further, the acquisition frequency of the collector is higher than 5 times/second.
Compared with the prior art, the utility model has the advantages of specifically lie in:
(1) the degree of automation is high, a non-contact measurement mode is adopted, and the machine automatically acquires, transmits, analyzes, stores and visualizes images;
(2) the timeliness of the information is high, the acquired data is read according to the preset time interval, and if the judgment gap is clear, the data can be directly displayed;
(3) the measurement precision is high, the collector controls the high resolution camera under an ARM platform, and the error is less than 3 mm;
(4) the protection device and the buffer device are installed, so that the interference of the external environment is reduced, and the precision and the accuracy of the measured data are improved;
(5) the device of the utility model does not produce any radiation and harmful substance, and is safe and environment-friendly.
Drawings
Fig. 1 is a schematic structural view of a high-precision shield tail clearance measuring device of the present invention;
fig. 2 is an assembly schematic diagram of the buffer spring of the present invention.
Detailed Description
Example 1
For the purpose of making the present invention clearer, the following description is made with reference to the accompanying drawings for further explanation of the high-precision shield tail clearance measurement device of the present invention, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
Referring to fig. 1, a shield tail clearance measuring device of high accuracy, including shield shell 1 and section of jurisdiction 2 that mutually supports, section of jurisdiction 2 forms shield tail clearance 3, its characterized in that between 1 inner wall of shield shell and the 2 outer walls of section of jurisdiction in locating the inner chamber of shield shell 1:
a group of collectors 4 are arranged on the shield shell 1, the collecting port of each collector 4 is arranged right opposite to the shield tail gap 3, the collectors 4 are connected in a protective box 5, and the protective box 5 is fixed on the shield shell 1 and used for protecting the collectors from dust, soil and the like and reducing construction disturbance;
the three collectors 4 are ARM platform lower control high resolution cameras and are respectively arranged right above and at two sides of the shield shell 1, a connecting line between the collectors 4 at the two sides is perpendicular to a connecting line between the center of the shield shell 1 and the collector 4 right above, and the collection frequency of the collector 4 is higher than 5 times/second;
referring to fig. 1 and 2, a buffer layer 6 is connected to the outside of the protection box 5, the buffer layer 6 is an EPS foam buffer plate, and a group of buffer springs 7 which are uniformly distributed are connected between the protection box 5 and the collector 4 to reduce adverse effects of construction on data collected by the collector;
the utility model discloses in, use above-mentioned measuring device to carry out shield tail clearance measurement method, concrete step is as follows, a serial communication port, include:
(1) installation of the collector: the high resolution camera is arranged in a protection box 5 on the inner wall of the shield shell 1, the stability of installation is noticed, and the high resolution camera is ensured not to fall off from the protection box during collection;
(2) adjusting the lens: after the installation and fixation, adjusting the measurement position of the acquisition lens of the high-resolution camera facing the shield tail gap 3 so as to ensure the accuracy of data acquisition;
(3) data acquisition and analysis: and after the adjustment is finished, acquiring the shield tail clearance image, transmitting the acquired data to a computer end by the high resolution camera, and calibrating and calculating by professional software to finally obtain accurate shield tail clearance data.
The utility model discloses a measuring device degree of automation is high, information timeliness is high, measurement accuracy is high, has adopted non-contact's measurement mode, and the machine carries out image acquisition, transmission, analysis, storage, visualization automatically, still can read the data of gathering according to presetting the time interval simultaneously, and measuring error is less than 3 mm; in addition, buffer spring and protection box can effectively reduce external environment's interference, and this device does not produce any radiation and harmful substance, and is safe environmental protection.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. The utility model provides a shield tail clearance measuring device of high accuracy, includes shield shell (1) and section of jurisdiction (2) of mutually supporting, forms shield tail clearance (3), its characterized in that between shield shell (1) inner wall and section of jurisdiction (2) outer wall:
a group of collectors (4) are arranged on the shield shell (1), the collecting port of each collector (4) is arranged right opposite to the shield tail gap (3), the collectors (4) are connected in a protection box (5), and the protection box (5) is fixed on the inner wall of the shield shell (1);
the collectors (4) are three cameras which are respectively arranged right above and at two sides of the shield shell (1), and the connecting line between the collectors (4) at the two sides is vertical to the connecting line between the center of the shield shell (1) and the collector (4) right above.
2. The high-precision shield tail clearance measuring device according to claim 1, characterized in that:
the outer part of the protection box (5) is connected with a buffer layer (6).
3. The high-precision shield tail clearance measuring device according to claim 2, characterized in that:
the buffer layer (6) is an EPS foam buffer plate.
4. The high-precision shield tail clearance measuring device according to any one of claims 1 to 3, characterized in that:
a group of buffer springs (7) which are uniformly distributed are connected between the protection box (5) and the collector (4).
5. The high-precision shield tail clearance measuring device according to any one of claims 1 to 3, characterized in that:
the acquisition frequency of the acquisition device (4) is higher than 5 times/second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540159.XU CN212378707U (en) | 2020-07-30 | 2020-07-30 | High-precision shield tail clearance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540159.XU CN212378707U (en) | 2020-07-30 | 2020-07-30 | High-precision shield tail clearance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212378707U true CN212378707U (en) | 2021-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021540159.XU Expired - Fee Related CN212378707U (en) | 2020-07-30 | 2020-07-30 | High-precision shield tail clearance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212378707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358046A (en) * | 2021-05-19 | 2021-09-07 | 上海隧道工程有限公司 | Visual measurement method and system for shield tail clearance |
-
2020
- 2020-07-30 CN CN202021540159.XU patent/CN212378707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358046A (en) * | 2021-05-19 | 2021-09-07 | 上海隧道工程有限公司 | Visual measurement method and system for shield tail clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210119 |