CN103323161A - Detecting device of pre-stress of anchor - Google Patents
Detecting device of pre-stress of anchor Download PDFInfo
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- CN103323161A CN103323161A CN 201210077567 CN201210077567A CN103323161A CN 103323161 A CN103323161 A CN 103323161A CN 201210077567 CN201210077567 CN 201210077567 CN 201210077567 A CN201210077567 A CN 201210077567A CN 103323161 A CN103323161 A CN 103323161A
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- oil
- piston
- anchor
- hydraulic fluid
- fuel tank
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 16
- 239000002828 fuel tank Substances 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 10
- 239000007858 starting material Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 28
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 238000004590 computer program Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Disclosed is a detecting device of pre-stress of an anchor. A control cabinet is arranged on the upper right portion of an oil tank. An antenna and a data collecting control meter are respectively arranged on the control cabinet. A plunger pump is arranged in the oil tank. One end of the plunger pump is connected to a motor, and the other end of the plunger pump is connected with an oil hole A and an oil hole B and is communicated with a magnetic reversing valve. A centre hole jack is arranged in the mode that a piston is arranged in an oil cylinder, a center hole sleeve is arranged in the piston, the right end of the center hole sleeve is provided with a tool clamping piece, and the outer circle of the center hole sleeve is provided with a clamping piece sleeve. The top end of the piston is provided with a jacking seat, and the lower portion of the jacking seat is connected with a shifter connecting rod on a displacement sensor. A pressure sensor is arranged below an oil feeding hole. A computer program is used for controlling a hydraulic system in a wireless mode. A hydraulic oil pump and the center hole jack are used for exerting drawing force on the anchor. Through the arrangement of the wireless data collecting control meter, counter drawing force which acts on the jack and displacement change are monitored in real time and counter pull is stopped. Effective pre-stress of an anchor cable to be detected is obtained in real time.
Description
Technical field: the present invention relates to field of civil engineering, particularly relate to the pick-up unit of a kind of anchor lower prestress in the Construction of Civil Engineering.
Background technology:
Beam body anchorage technology is applied widely in bridge construction construction now.Along with China builds infrastructure energetically, particularly to the increasing of traffic, the energy, water conservancy and urban infrastructure construction dynamics, the reliability detection technique of beam body anchoring construction quality will show very wide application prospect.
The advance of beam body anchorage technology, economy gains public acceptance, but as permanent work, prestress anchorage cable engineering particularly, the variation of effective prestress, whether be related to engineering is in a safe condition, therefore, how to detect correctly that effective prestress seems very important under the anchor, domestic and international detection method for the anchor cable construction quality mainly is to adopt to draw to dial test at present, in beam body tensioning construction process, it is main that the record of stretch-draw and data is manually-operated, and uncertain factor is too many, lacks effective monitoring and detection means in the construction and after the construction, there is serious potential safety hazard in the beam body construction, directly cause anchor lower prestress not meet designing requirement and request for utilization, have a strong impact on the serviceable life of bridge, increase the bridge operation costs.So draw to dial to test and to measure effectively accurately anchor lower prestress.Therefore, work out and to detect as the acceptance of work, the control engineering construction quality, can the prestress anchorage cable in the operation be detected again simultaneously, have high precision, low cost, practical, and to the pick-up unit that structure itself does not impact, become a urgent problem in the detection of prestress anchorage cable effective prestress.
Summary of the invention:
Purpose of the present invention is exactly the pick-up unit that a kind of anchor lower prestress will be provided, and it can overcome the existing above defective of prior art.The object of the present invention is achieved like this, a kind of pick-up unit of anchor lower prestress, comprise fuel tank, ram pump, solenoid directional control valve, it is characterized in that: the upper left side at fuel tank is provided with switch board, is respectively arranged with antenna, data acquisition control instrument on the switch board, and the upper right side of fuel tank is provided with tensimeter, solenoid directional control valve, be provided with ram pump in the fuel tank, one end of ram pump is connected with motor, and the other end is connected with hydraulic fluid port A, hydraulic fluid port B, and hydraulic fluid port A, hydraulic fluid port B communicate with solenoid directional control valve; Be provided with pouring orifice, oil return opening on the described solenoid directional control valve, and communicate by oil supply hole, the spill port that arranges on oil inlet pipe, scavenge pipe and the centre-hole jack respectively; Described centre-hole jack is to be provided with piston in oil cylinder, is provided with the punching cover in the piston, and the right-hand member of punching cover is provided with tool clamping piece, is provided with Working-Clip sleeve on the right-hand member outer ring of punching cover and the outer ring of tool clamping piece; The right top of described piston is provided with footstock, and the below of footstock links to each other with shifter connecting link on the displacement transducer; The below of described oil supply hole is provided with pressure transducer; Described data acquisition control instrument is by the control signal of antenna reception from computing machine, starter motor work, and by the data-signal on the wireless real-time acquisition sensor.
The present invention is by the oil-feed of computer program controlled in wireless hydraulic system, pressure release, oil return; Apply pulling force by superhigh pressure hydraulic oil pump and feed-through hydraulic jack pair anchor cable.The data acquisition controller has been installed, the displacement that produces at the anti-counter pull value that is pulled through wireless real-time acquisition lifting jack inlet pressure sensor in the journey and anchor cable, by computing machine data are gathered the feedback numerical value that controller gathers, accurately control feed-through hydraulic lifting jack acts on the reversal interlocking relay on single rope reinforcing bar, and by to the Real-Time Monitoring that acts on counter pull on the lifting jack and change in displacement and stop counter drawing.From adopt counter pull and displacement data carry out Computer Analysis, draw in real time the effective prestress of detected anchor cable, do not destroy again the current condition of detected anchor cable simultaneously.
The present invention compared with prior art has the following advantages:
A, this equipment do not destroy anchor structure, belong to a kind of Non-Destructive Testing, and precision is high, and cost is low;
B, this hydraulic system have low-pressure high-flowrate, the characteristics of high pressure low discharge, thereby the accuracy of assurance prestress application;
C, employing wireless collection controller have higher sample frequency, and the energy Quick Acquisition is installed in pressure transducer and the displacement transducer signal on the lifting jack, therefore can realize the accurate control to system;
D, accurately measure the anchor lower prestress value: according to the displacement and pressure curve that collects, to data gather controller data carry out real-time analysis and realize;
E, controlled in wireless, collection, signal transmission, dirigibility, strong adaptability: the safety that guarantees the testing staff;
The data of F, testing process collection generate automatically, and detection curve and prestress effective value are preserved, and make things convenient for competent authorities and technician that this beam body is judged that whether work progress meets standard, reaches the prestressing technique requirement;
G, pick-up unit only need operating personnel just can finish testing, and safety, speed are fast, good in economic efficiency;
H, the whole process of beam body pre-stress construction is played supervision, surveys inspection, checks and accepts, improve the effect of construction quality.
Description of drawings: Fig. 1 is structural representation of the present invention;
1. fuel tank, 2. ram pump, 3. electric box, 4. power interface, 5. power switch, 6. motor, 7. switch board, 8. antenna, 9. data acquisition control instrument, 10. tensimeter, 11. solenoid directional control valves, 12. oil fillers, 13. hydraulic fluid port A, 14. hydraulic fluid port B, 15. pouring orifices, 16. oil return opening, 17. scavenge pipes, 18. oil inlet pipes, 19. oil supply hole, 20. spill ports, 21. rapid-acting couplings, 22. oil cylinder, 23. pistons, 24. punching covers, 25. tool clamping piece, 26. Working-Clip sleeves, 27. footstocks, 28. shifter connecting link
29. displacement transducer, 30. pressure transducers, 31 liquid level gauges, 32. data connecting lines, 33. computing machines.
Embodiment: the invention will be further described below in conjunction with accompanying drawing;
A kind of pick-up unit of anchor lower prestress, comprise fuel tank 1, ram pump 2, solenoid directional control valve 11, it is characterized in that: be provided with switch board 7 on the upper left side of fuel tank 1, be respectively arranged with antenna 8, data acquisition control instrument 9 on the switch board 7, the upper right side of fuel tank 1 is provided with tensimeter 10, solenoid directional control valve 11, is provided with ram pump 2 in the fuel tank 1, and an end of ram pump 2 is connected with motor 6, the other end is connected with hydraulic fluid port A13, hydraulic fluid port B14, and hydraulic fluid port A13, hydraulic fluid port B14 communicate with solenoid directional control valve 11; Be provided with pouring orifice 15, oil return opening 16 on the described solenoid directional control valve 11, and communicate by oil supply hole 19, the spill port 20 that arranges on oil inlet pipe 18, scavenge pipe 17 and the centre-hole jack respectively; Described centre-hole jack is to be provided with piston 23 in oil cylinder 22, is provided with punching cover 24 in the piston 23, and the right-hand member of punching cover 24 is provided with tool clamping piece 25, is provided with Working-Clip sleeve 26 on the right-hand member outer ring of punching cover 24 and the outer ring of tool clamping piece 25; The right top of described piston 23 is provided with footstock 27, and the below of footstock 27 links to each other with shifter connecting link 28 on the displacement transducer 29; The below of described oil supply hole 19 is provided with pressure transducer 30; The control signal that described data acquisition control instrument 9 receives from computing machine 33 by antenna 8, starter motor 6 work.
During implementation, at first assemble and install centre-hole jack, connect the signal data connecting line 32 on centre-hole jack upward pressure sensor 30, the displacement transducer 29, connect hydraulic system and centre-hole jack, plugged with oil pipe.Open computing machine 33, connect wireless network interface.
After preliminary work finishes, begin to detect.
The present invention can solve the following point that exists in the current pre-stress construction process:
A, the anchor rope effective prestress value that places an order;
Same bundle prestress value uniformity coefficient under B, the anchor;
Under C, the beam body anchor with section prestress value uniformity coefficient;
Whether effective prestress reaches code requirement under D, the anchor;
E, the pressure according to measured, displacement curve and data accurately draw effective prestress value under the anchor
Automatically record the data in the testing process, preserve with the form of image, make things convenient for competent authorities to the check verification of construction quality.
Claims (4)
1. the pick-up unit of an anchor lower prestress, comprise fuel tank (1), ram pump (2), solenoid directional control valve (11), it is characterized in that: be provided with switch board (7) on the upper left side of fuel tank (1), be respectively arranged with antenna (8) on the switch board (7), data acquisition control instrument (9), the upper right side of fuel tank (1) is provided with tensimeter (10), solenoid directional control valve (11), be provided with ram pump (2) in the fuel tank (1), one end of ram pump (2) is connected with motor (6), the other end and hydraulic fluid port A(13), hydraulic fluid port B(14) is connected hydraulic fluid port A(13), hydraulic fluid port B(14) communicates with solenoid directional control valve (11); Be provided with pouring orifice (15), oil return opening (16) on the described solenoid directional control valve (11), and communicate by oil supply hole (19), the spill port (20) that arranges on oil inlet pipe (18), scavenge pipe (17) and the centre-hole jack respectively.
2. the pick-up unit of a kind of anchor lower prestress according to claim 1, it is characterized in that: described centre-hole jack is to be provided with piston (23) in oil cylinder (22), be provided with punching cover (24) in the piston (23), the right-hand member of punching cover (24) is provided with tool clamping piece (25), is provided with Working-Clip sleeve (26) on the outer ring of the right-hand member outer ring of punching cover (24) and tool clamping piece (25); The right top of described piston (23) is provided with footstock (27), and the below of footstock (27) links to each other with shifter connecting link (28) on the displacement transducer (29).
3. the pick-up unit of a kind of anchor lower prestress according to claim 1, it is characterized in that: the below of described oil supply hole (19) is provided with pressure transducer (30).
4. the pick-up unit of a kind of anchor lower prestress according to claim 1 is characterized in that: described data acquisition control instrument (9) receives control signal from computing machine (33), starter motor (6) work by antenna (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210077567 CN103323161A (en) | 2012-03-21 | 2012-03-21 | Detecting device of pre-stress of anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210077567 CN103323161A (en) | 2012-03-21 | 2012-03-21 | Detecting device of pre-stress of anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103323161A true CN103323161A (en) | 2013-09-25 |
Family
ID=49192052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210077567 Pending CN103323161A (en) | 2012-03-21 | 2012-03-21 | Detecting device of pre-stress of anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103323161A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728096A (en) * | 2015-04-09 | 2015-06-24 | 中石化石油工程机械有限公司第四机械厂 | Service life detection device for pump head body used for fracturing under actual working conditions |
| CN107060850A (en) * | 2017-06-07 | 2017-08-18 | 山东安达尔信息科技有限公司 | A kind of intelligent microlight-type Mine anchorage cable tensioner |
| CN109060523A (en) * | 2018-06-28 | 2018-12-21 | 四川升拓检测技术股份有限公司 | A kind of steel strand wires intermediate plate multiple spot independent displacement detection device for reverse drawing method |
| CN111811945A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Prestressed anchor cable installation test system and method |
| CN112880899A (en) * | 2021-03-24 | 2021-06-01 | 中铁桥隧技术有限公司 | Device and method for testing cable force under stay cable anchor of in-service cable bridge |
-
2012
- 2012-03-21 CN CN 201210077567 patent/CN103323161A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728096A (en) * | 2015-04-09 | 2015-06-24 | 中石化石油工程机械有限公司第四机械厂 | Service life detection device for pump head body used for fracturing under actual working conditions |
| CN104728096B (en) * | 2015-04-09 | 2017-02-01 | 中石化石油工程机械有限公司第四机械厂 | Service life detection device for pump head body used for fracturing under actual working conditions |
| CN107060850A (en) * | 2017-06-07 | 2017-08-18 | 山东安达尔信息科技有限公司 | A kind of intelligent microlight-type Mine anchorage cable tensioner |
| CN109060523A (en) * | 2018-06-28 | 2018-12-21 | 四川升拓检测技术股份有限公司 | A kind of steel strand wires intermediate plate multiple spot independent displacement detection device for reverse drawing method |
| CN111811945A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Prestressed anchor cable installation test system and method |
| CN112880899A (en) * | 2021-03-24 | 2021-06-01 | 中铁桥隧技术有限公司 | Device and method for testing cable force under stay cable anchor of in-service cable bridge |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130925 |