CN105627986A - Underground engineering vault crown settlement measurement device based on total station method - Google Patents
Underground engineering vault crown settlement measurement device based on total station method Download PDFInfo
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- CN105627986A CN105627986A CN201610216253.1A CN201610216253A CN105627986A CN 105627986 A CN105627986 A CN 105627986A CN 201610216253 A CN201610216253 A CN 201610216253A CN 105627986 A CN105627986 A CN 105627986A
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- total powerstation
- advance
- rod member
- underground works
- vault settlement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses an underground engineering vault crown settlement measurement device based on a total station method. The underground engineering vault crown settlement measurement device comprises a pre-embedded rod piece with thread structures at two ends, an expanded fastening piece which is connected to an embedded end of the pre-embedded rod piece in a thread manner, and a measurement part which is connected to the other end of the pre-embedded rod piece, wherein the expanded fastening piece comprises a pipe-shaped connection piece, propelling sheets which are distributed on the circumference of the pipe-shaped connection piece at equal distances, and convex guide pieces which are distributed on outer walls of the pipe-shaped connection piece and the propelling sheets; and the measurement part comprises a fixed connector which is in threaded connection with a non-embedded end of the pre-embedded rod piece, a base which is movably connected with the fixed connector, a positioning screw for locking the fixed connector and the base, a supporting plate fixed at the bottom of the base, and a light reflection sheet stuck on the outer surface of the supporting plate. The underground engineering vault crown settlement measurement device disclosed by the invention has the advantages that a measurement point is convenient to embed and the fastening effect is good, and has a very high practical value and a wide application prospect.
Description
Technical field
The present invention relates to a kind of underground works monitoring measurement device, specifically, relate to a kind of underground works Vault settlement based on total powerstation method and measure device.
Background technology
The underground workss such as tunnel, tunnel, mountain ridge cave depot, due to the polytropy of its disguise constructed, the complicacy of geology, the diversity of construction and environment, cause difficulty of construction big, very easily fall block and the security incident such as cave in, not only have impact on engineering construction speed seriously, also greatly threaten the life security of workmen. Monitoring measurement refers to the distortion of country rock, earth's surface, supporting construction and steady state in underground engineering construction process, and the current observation that dynamically carries out of surrounding enviroment and measure work. The steady state of country rock and the degree of reliability of supporting structure system can be understood and grasped by monitoring measurement, guarantee that construction safety and supporting construction are stablized, for construction is changed country rock rank, adjustment initial stage supporting and two lining cutting parameters, guiding construction order, revise and optimization design provides foundation, the safety monitoring tool of underground engineering construction is of great significance.
Tunnel vault settlement measurement is one of main contents of underground works monitoring measurement, its measuring apparatus mainly contains spirit-leveling instrument, convergence gauge, total powerstation etc., compared with spirit-leveling instrument, convergence gauge, total powerstation has precision height, execute and survey the advantages such as convenient, transfer is convenient, is the most frequently used instrument of tunnel vault settlement measurement. Underground works Vault settlement for total powerstation method is measured, and because of the reason such as vault position is higher, difficult in maintenance, cannot set up independent prism at vault place, therefore generally adopts the method pasting reflective subsides at measuring point to measure.
The conventional measuring point pasting reflective subsides is buried step underground and is: first, is welded on reinforcing bar by steel plate, is made into measuring point; Then, it may also be useful to insert reinforcing bar after drill hole of drilling machine and use anchoring agent to be fixed; After just a concrete ejection completes, in time reflective subsides are pasted on steel plate, it is ensured that paste solid and reliable.
Above-mentioned measuring point is buried underground exists some deficiency in process:
1. adopt reinforcing bar to go deep into country rock inner wall tightening weak effect, once wall rock loosening, will directly affect test result and duration;
2. reflective subsides are pasted in high-altitude, and operation easier is big, and operator safety is difficult to ensure, and effect not easily confirms;
3. reflective subsides cannot avoid the pollution and destruction that engineering is constructed and it caused after pasting, and cannot automatically return to again original state, change also extremely inconvenient, and therefore, the continuity of take off data and accuracy are very low;
4. measuring point adopts welding process to connect reinforcing bar and steel plate, cannot reuse after fixing, measures cost height;
5. after initial stage supporting construction completes, the enforcement difficulty setting up monitoring stations is very big, and the handiness of later stage adjustment measuring point is very poor.
Summary of the invention
In order to overcome the above-mentioned problems in the prior art, the present invention provides a kind of underground works Vault settlement measuring apparatus based on total powerstation method, and measuring point is buried convenience, fastening parts convenient disassembly effective, each underground and can be reused.
In order to realize above-mentioned purpose, the technical solution used in the present invention is as follows:
Underground works Vault settlement based on total powerstation method measures device, and what comprise that two ends are provided with helicitic texture buries rod member in advance, is connected in a threaded manner to this and buries the expansion fastener that end imbedded by rod member in advance, and is connected to the described measurement parts burying the rod member the other end in advance; Described expansion fastener comprises tubular connection, is distributed in this tubular connection impelling sheet circumferentially etc. spacing, and the protruding guiding part being distributed on this tubular connection and impelling sheet outer wall; Described measurement parts comprise and bury non-the imbedding of rod member in advance and hold, with described, the permanent joint that is threaded, with the pedestal that this permanent joint is flexibly connected, for locking the dog screw of this permanent joint and pedestal, the back up pad being fixed on described base bottom, and the reflecting piece being pasted onto on this back up pad outer side.
Further, described impelling sheet is interior tooth type structure, and at least comprises three, and the tip of each impelling sheet all expands outwardly. Preferably, angle between described impelling sheet and described tubular connection is 10 �㡫15 ��.
Further, the sidewall of described pedestal is provided with the connection hole be convenient to permanent joint card and enter, and its top is provided with to be convenient to dog screw and wear into and the pilot hole that locks permanent joint.
Again further, described permanent joint is made up of the base connected successively, cylindrical rods, semiglobe, the bottom of described base is offered and the non-screw imbedded end and be threaded burying rod member in advance, and described semiglobe mates connection with the connection hole of described pedestal sidewall.
Preferably, the center of described reflecting piece is provided with crosshair.
Preferably, described rod member length of burying in advance is 300 ~ 500mm, and it imbeds end length of thread is 50mm, and non-imbedding holds length of thread to be 10mm.
Preferably, described dog screw is T-shaped revolve handle screw, and its length is greater than the length of pilot hole.
Preferably, described pedestal is fixed on the center of described back up pad.
Preferably, described rod member, expansion fastener, permanent joint, pedestal, dog screw and the back up pad of burying in advance makes by galvanized steel.
Compared with prior art, the present invention has following useful effect:
(1) in the present invention expansion fastener and bury in advance rod member insertion surrounding bed after, due to the effect of impelling sheet and protruding guiding part, making fastening effect very stable, the impact loosened by surrounding bed is almost negligible, and substantially increases data accuracy and the reliability of long-term measurement. Measure parts to be connected to threadably and bury the non-of rod member in advance and imbed end, load and unload very convenient, more can pollute for different country rock situation or be subject to, change measurement parts fast, flexibly when damaging, even change measuring point, there is very high handiness.
(2) in the present invention, each assembly all adopts engagement thread to be flexibly connected, once assembly damages or contaminated, all can directly change fast, and little because changing the error brought of parts, can ignore, it is ensured that the long-time continuous of test job carries out; The measurement parts not damaged then can reuse, and effectively reduces measurement operation cost.
(3) burying rod member length in the present invention in advance is 300 ~ 500mm, cooperation expansion fastener can be buried in wall rock loosening ring, it imbeds the length of thread of end is 50mm, process can be impelled interior tooth type expansion fastener fully open burying underground, thus be firmly anchored in surrounding bed, so, after supporting completes in the early stage, even if running into country rock gross distortion, can also ensure to bury in advance the stability of rod member, not only ensure the accuracy that the later stage measures, and provide wide space for the selection of measuring point in observation process.
(4) in the present invention, expansion fastener is made up of the impelling sheet of multiple interior tooth type, and snatch ability is strong, can not dally, and can fully meet tunnel surrounding punching requirement, and it is simple to construct, it is not necessary to professional construction skill; Protruding guiding part outside it has lock only locking functions, utilizes reverse push stress effect tightly to lock in surrounding bed, ensure that the stability that measuring point is installed.
(5) in the present invention, each component all adopt galvanized steel to make, and have the characteristic of good protection against the tide, anticorrosive, tension, bending resistance, anti-folding, and the applicable Vault settlement in various tunnel measures, and has very strong environmental adaptation ability.
Accompanying drawing explanation
Fig. 1 is the structural representation of other parts except laser beam emitting device in the present invention.
Fig. 2 is the structural representation of expansion fastener in the present invention.
Fig. 3 is the structural representation measuring parts in the present invention.
Fig. 4 is the structural representation of permanent joint in the present invention.
Fig. 5 is the structural representation of pedestal and back up pad in the present invention.
Part component name in accompanying drawing is called:
1-buries rod member in advance, 2-expansion fastener, 21-tubular connection, 22-impelling sheet, 23-projection guiding part, 3-measures parts, 31-permanent joint, 32-pedestal, 33-dog screw, 34-back up pad, 311-base, 312-cylindrical rods, 313-semiglobe, 321-connects hole, 322-pilot hole.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in Figures 1 to 5, the underground works Vault settlement based on total powerstation method disclosed by the invention measures device, comprises and buries rod member 1, expansion fastener 2 in advance and measure parts 3. The two ends burying rod member 1 in advance are provided with outside screw, and the inwall of expansion fastener 2 and measurement parts 3 is provided with internal thread, and both are threaded connection respectively at the two ends burying rod member 1 in advance. Described expansion fastener 2 comprises tubular connection 21, is distributed in tubular connection 21 impelling sheet 22 circumferentially etc. spacing, and the protruding guiding part 23 being distributed on described tubular connection 21 and impelling sheet 22 outer wall.
In the present embodiment, tubular connection 21 be circumferentially evenly distributed with three impelling sheets 22, overall tapered structure, front end is thin, sharp, it is possible to maximum degree ground reduces imbeds the resistance that in process, impelling sheet 22 is subject to, and reduces and imbeds difficulty, thus saves manpower and materials. And there is between three impelling sheets 22 and the front end of tubular connection 21 the angle relation of 10 �㡫15 ��, in enlarging shape, so again can impelling sheet is swollen open after maximum degree increase the contact area of impelling sheet 22 with surrounding bed, make impelling sheet multi-faceted, be closely buckled in surrounding bed with multi-angle, ensure fastening effect. And the protruding guiding part 23 being arranged on tubular connection 21 and impelling sheet 22 outer wall is owing to front end is low, rear end height, after impelling sheet expands, can at impelling sheet to providing resistance during surrounding bed slide outside, stop impelling sheet to come off from surrounding bed, further enhance impelling sheet and be the fastening effect in rock stratum.
Described measurement parts 3 comprise permanent joint 31, pedestal 32, dog screw 33, back up pad 34; Wherein, described permanent joint 31 is made up of base 311, cylindrical rods 312, semiglobe 313, by being arranged on, the screw bottom it is connected base 311 with the non-end of imbedding burying rod member 1 in advance, the sidewall of pedestal 32 is provided with and connects hole 321, cylindrical rods 312 is inserted in this connection hole 321 together with semiglobe 313, it is achieved with the connection of pedestal 32; And, the top of described pedestal 32 is provided with pilot hole 322, and dog screw 33 supports the semiglobe 313 of permanent joint 31 through this pilot hole 322, it is achieved the locking of pedestal 32 and permanent joint 31; The central position of a side of described back up pad 34 and the bottom welding of described pedestal 32, reflecting piece is pasted in another side, and crosshair has been portrayed in the central position of reflecting piece. Above-mentioned measurement parts coordinate the existing laser beam emitting device of total powerstation method, utilize the change in location of light in light tiles, obtain Vault settlement data, it is achieved the detection of underground works Vault settlement amount.
In order to the effective cooperation guaranteed between each assembly, described base 311 is set to cube structure, its width is greater than cylindrical rods 312, and the diameter of semiglobe 313 mates with cylindrical rods 312, and the size in the connection hole 321 on pedestal 32 sidewall is mated with the size of semiglobe 313. For the ease of fastening operation, described dog screw 33 is selected T-shaped to revolve handle screw, and its length is greater than the length of pilot hole 322.
In the present invention, burying the length of thread that rod member 1 imbeds end in advance is 50mm, can make that three impelling sheets are completely swollen to be opened in its precession process; The non-length of thread imbedding end is 10mm, mates with the bottom screw hole depth of permanent joint 31; The whole length burying rod member in advance is 300��500mm, even if supporting in the early stage also is enough to penetrate initial stage supporting after completing arrive surrounding bed, it is achieved increase the object of measuring point flexibly. Described rod member 1, expansion fastener 2, permanent joint 31, pedestal 32, dog screw 33 and the back up pad 34 of burying in advance makes by galvanized steel, having good protection against the tide, anticorrosive, tension, bending resistance, anti-folding characteristic, the applicable Vault settlement in various tunnel measures.
The present invention carries out expansion fastener and buries burying underground of rod member in advance after tunnel excavates, burying rear expansion fastener underground is closely buckled in surrounding bed, then directly measurement parts are connected to threadably fast and bury the non-of rod member in advance and imbed end, again laser beam emitting device is installed, Vault settlement DATA REASONING can be started. In construction process, if reflecting piece is polluted because of construction operations such as initial stage supporting, working face excavations and is damaged, it is possible to the reflecting piece directly more renewed; Contaminated measurement parts, can continue after pasting new reflecting piece to use. And, each assembly is flexible connection, and the measurement parts of damage can use new same item to replace, and re-assemblies, and not only handling are flexibly, and greatly reduce operation cost.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as adopting the principle of design of the present invention, and the change carrying out non-creativeness work on this basis and making, all should belong within protection scope of the present invention.
Claims (10)
1. based on the underground works Vault settlement measurement device of total powerstation method, it is characterized in that, what comprise that two ends are provided with helicitic texture buries rod member (1) in advance, it is connected in a threaded manner to this and buries the expansion fastener (2) that end imbedded by rod member (1) in advance, and be connected to the described measurement parts (3) burying the rod member the other end in advance; Described expansion fastener (2) comprises tubular connection (21), is distributed in this tubular connection (21) impelling sheet (22) circumferentially etc. spacing, and protruding guiding part (23) being distributed on this tubular connection (21) and impelling sheet (22) outer wall; Described measurement parts (3) comprise buries the non-permanent joint (31) imbedded end and be threaded of rod member (1) in advance with described, the pedestal (32) being flexibly connected with this permanent joint (31), for locking the dog screw (33) of this permanent joint (31) with pedestal (32), the back up pad (34) being fixed on described pedestal (32) bottom, and the reflecting piece being pasted onto on this back up pad (34) outer side.
2. the underground works Vault settlement based on total powerstation method according to claim 1 measures device, it is characterised in that, described impelling sheet (22) is in interior tooth type structure, and at least comprises three, and the tip of each impelling sheet (22) all expands outwardly.
3. the underground works Vault settlement based on total powerstation method according to claim 2 measures device, it is characterised in that, the angle between described impelling sheet (22) and described tubular connection (21) is 10 �㡫15 ��.
4. the underground works Vault settlement based on total powerstation method according to claim 3 measures device, it is characterized in that, the sidewall of described pedestal (32) be provided be convenient to permanent joint (31) block into connection hole (321), its top is provided with to be convenient to dog screw (33) and wears into and the pilot hole (322) that locks permanent joint (31).
5. the underground works Vault settlement based on total powerstation method according to claim 4 measures device, it is characterized in that, described permanent joint (31) is made up of the base (311) connected successively, cylindrical rods (312), semiglobe (313), the bottom of described base (311) is offered and the non-screw imbedded end and be threaded burying rod member (1) in advance, and described semiglobe (313) mates connection with the connection hole (321) of described pedestal (32) sidewall.
6. the underground works Vault settlement based on total powerstation method according to claim 5 measures device, it is characterised in that, the center of described reflecting piece (35) is provided with crosshair.
7. the underground works Vault settlement based on total powerstation method according to claim 6 measures device, it is characterised in that, described rod member (1) length of burying in advance is 300 ~ 500mm, and it imbeds end length of thread is 50mm, and non-imbedding holds length of thread to be 10mm.
8. the underground works Vault settlement based on total powerstation method according to claim 7 measures device, it is characterised in that, described dog screw (33) revolves handle screw for T-shaped, and its length is greater than the length of pilot hole (322).
9. the underground works Vault settlement based on total powerstation method according to claim 8 measures device, it is characterised in that, described pedestal (32) is fixed on the center of described back up pad (34).
10. the underground works Vault settlement based on total powerstation method according to claim 9 measures device, it is characterized in that, described rod member (1), expansion fastener (2), permanent joint (31), pedestal (32), dog screw (33) and the back up pad (34) of burying in advance makes by galvanized steel.
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| CN201610216253.1A CN105627986B (en) | 2016-04-08 | 2016-04-08 | Underground engineering Vault settlement measuring equipment based on total powerstation method |
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| CN201610216253.1A CN105627986B (en) | 2016-04-08 | 2016-04-08 | Underground engineering Vault settlement measuring equipment based on total powerstation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123849A (en) * | 2016-08-30 | 2016-11-16 | 中航勘察设计研究院有限公司 | The monitoring method of Vault settlement and monitoring element thereof in a kind of bored tunnel |
| CN106767681A (en) * | 2016-11-21 | 2017-05-31 | 山东大学 | Suitable for the surface subsidence monitoring device and its monitoring method of Canal in Loess Area |
| CN111336987A (en) * | 2020-03-30 | 2020-06-26 | 浙江省交通运输科学研究院 | Method for determining embedding depth of vault settlement monitoring point in tunnel construction |
| CN114279399A (en) * | 2021-12-06 | 2022-04-05 | 湖北文理学院 | Tunnel settlement measuring point device |
| CN117824580A (en) * | 2023-12-29 | 2024-04-05 | 中航勘察设计研究院有限公司 | Sedimentation monitoring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303343A (en) * | 1996-05-09 | 1997-11-25 | Masami Kishimoto | Expanding/contracting cylindrical body structure |
| CN102493989A (en) * | 2011-12-30 | 2012-06-13 | 山东大学 | Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device |
| CN202814400U (en) * | 2012-09-26 | 2013-03-20 | 洛阳理工学院 | Measuring point combination device for tunnel monitoring measurement |
| CN103335596A (en) * | 2013-06-26 | 2013-10-02 | 同济大学 | Tunnel convergence displacement and arch crown settlement measuring device and measuring method |
| JP2014098704A (en) * | 2013-12-16 | 2014-05-29 | Kajima Corp | Inner space displacement measuring method and inner space displacement measuring system |
| CN205482923U (en) * | 2016-04-08 | 2016-08-17 | 中铁西南科学研究院有限公司 | Underground works vault settlement measuring device based on total powerstation method |
-
2016
- 2016-04-08 CN CN201610216253.1A patent/CN105627986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303343A (en) * | 1996-05-09 | 1997-11-25 | Masami Kishimoto | Expanding/contracting cylindrical body structure |
| CN102493989A (en) * | 2011-12-30 | 2012-06-13 | 山东大学 | Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device |
| CN202814400U (en) * | 2012-09-26 | 2013-03-20 | 洛阳理工学院 | Measuring point combination device for tunnel monitoring measurement |
| CN103335596A (en) * | 2013-06-26 | 2013-10-02 | 同济大学 | Tunnel convergence displacement and arch crown settlement measuring device and measuring method |
| JP2014098704A (en) * | 2013-12-16 | 2014-05-29 | Kajima Corp | Inner space displacement measuring method and inner space displacement measuring system |
| CN205482923U (en) * | 2016-04-08 | 2016-08-17 | 中铁西南科学研究院有限公司 | Underground works vault settlement measuring device based on total powerstation method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123849A (en) * | 2016-08-30 | 2016-11-16 | 中航勘察设计研究院有限公司 | The monitoring method of Vault settlement and monitoring element thereof in a kind of bored tunnel |
| CN106767681A (en) * | 2016-11-21 | 2017-05-31 | 山东大学 | Suitable for the surface subsidence monitoring device and its monitoring method of Canal in Loess Area |
| CN111336987A (en) * | 2020-03-30 | 2020-06-26 | 浙江省交通运输科学研究院 | Method for determining embedding depth of vault settlement monitoring point in tunnel construction |
| CN114279399A (en) * | 2021-12-06 | 2022-04-05 | 湖北文理学院 | Tunnel settlement measuring point device |
| CN114279399B (en) * | 2021-12-06 | 2024-06-21 | 湖北文理学院 | Tunnel subsidence measuring point device |
| CN117824580A (en) * | 2023-12-29 | 2024-04-05 | 中航勘察设计研究院有限公司 | Sedimentation monitoring device |
| CN117824580B (en) * | 2023-12-29 | 2024-08-16 | 中航勘察设计研究院有限公司 | Sedimentation monitoring device |
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