CN103047940A - Method and device for measuring volume deformation of large-volume concrete bottom plate by using laser wireless distance meter - Google Patents
Method and device for measuring volume deformation of large-volume concrete bottom plate by using laser wireless distance meter Download PDFInfo
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- CN103047940A CN103047940A CN2012105468790A CN201210546879A CN103047940A CN 103047940 A CN103047940 A CN 103047940A CN 2012105468790 A CN2012105468790 A CN 2012105468790A CN 201210546879 A CN201210546879 A CN 201210546879A CN 103047940 A CN103047940 A CN 103047940A
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Abstract
The invention discloses a method for measuring volume deformation of a large-volume concrete bottom plate by using a laser wireless distance meter. The method mainly comprises the following steps of after the concrete bottom plate is cast and primarily concentrated, respectively spanning the laser distance meter connected with a computer and a laser reflecting plate at the opposite positions of the two sides of the concrete bottom plate; starting the laser distance meter, radiating laser emitted by the laser distance meter onto the laser reflecting plate to generate a distance signal between the laser distance meter and the laser reflecting plate, and transmitting the distance signal to the computer, wherein when the concrete bottom plate is expanded and retracted, the distance signal generated between the laser distance meter and the laser reflecting plate is correspondingly changed; measuring and recording the distance signal to obtain the volume change of the concrete bottom plate; and measuring the deformation of the concrete bottom plate by using the laser distance meter and the laser reflecting plate.
Description
Technical field
The present invention relates to a kind of measuring method of mass concrete invert cubic deformation, especially a kind of method and device that utilizes the cubic deformation of laser radio stadia surveying mass concrete invert.
Background technology
After building, mass concrete invert because the release of hydration heat of cement can cause rising and the volumetric expansion of baseplate temp, after the hydration heat of cement release rate slows down, can cause drop in temperature to cause the base plate volumetric contraction owing to backplate surface dispels the heat again.The Swelling and contraction of concrete floor will be subject to the constraint of foundation soil and pile foundation, can not freely occur, but foundation soil and pile foundation be very difficult by calculating acquisition, so the early hydration thermal deformation of base plate is difficult to by calculating acquisition to the restrained deformation size of base plate.Therefore the invention provides the hydration heat distortion that a kind of method actual measurement goes out mass concrete invert, thereby can utilize anti-foundation soil and the pile foundation released of the distortion that measures to the effect of contraction power of base plate, and this actual measurement to cubic deformation can also be used for calculating between two base plates owing to expand or shrink and the stress that produces at surface of contact.
Summary of the invention
Technical matters to be solved by this invention provides a kind of method and device that utilizes laser radio stadia surveying mass concrete invert to cause cubic deformation owing to the early water heat-transmission.
For realizing above-mentioned technique effect, the invention discloses a kind of method of utilizing laser radio stadia surveying mass concrete invert to build rear cubic deformation, described method mainly may further comprise the steps:
Described concrete floor build finish and reach initial set after, a laser range finder that is connected with computing machine and a laser reflection plate are set up in respectively the relative position of described concrete floor dual-side;
The Ear Mucosa Treated by He Ne Laser Irradiation of opening described laser range finder and making described laser range finder emission generates the distance signal between described laser range finder and the described laser reflection plate, and described distance signal is transferred to described computing machine to described laser reflection plate;
When described concrete floor Swelling and contraction distortion, the distance signal generation respective change that generates between described laser range finder and the described laser reflection plate is by measuring the volume change that obtains described concrete floor with the described distance signal of record.
Described method is further improved and is, described laser range finder is placed in the galvanized steel plain sheet box in advance, described galvanized steel plain sheet box is set up on the described concrete floor by an A-frame, and offer plural through hole at the sidewall of described galvanized steel plain sheet box, the laser of described laser range finder emission is shone on the described laser reflection plate by described through hole.
Described method is further improved and is that described laser reflection plate is fixed by welding on the A-frame and is set up on the described concrete floor.
Described method is further improved and is, is welded with nut in the foot of described three-legged support, by screw described three-legged support is fixed on the described concrete floor.
The invention also discloses a kind of device that utilizes laser radio stadia surveying mass concrete invert to build rear cubic deformation, described device comprises a laser range finder and a laser reflection plate, described laser range finder and described laser reflection plate are set up in respectively the relative position of described concrete floor dual-side, and described laser range finder connects a computing machine.
Described device further improves and be that described laser range finder is connected with described Computer Wireless Communication in 500 meters scope.
Described device further improves and is, described laser range finder is placed in the galvanized steel plain sheet box, the sidewall of described galvanized steel plain sheet box offers plural through hole, the laser of described laser range finder emission is outwards launched by described through hole, and described galvanized steel plain sheet box is set up on the described concrete floor by an A-frame.
Described device further improves and is that described laser reflection plate is the galvanized steel plain sheet of a 20*20cm, is set up on the described concrete floor by being welded on the three-legged support.
Described device further improves and is that the foot of described three-legged support is welded with nut, is screwed on described concrete floor.
The present invention is owing to adopted above technical scheme, make it have following beneficial effect to be: the relative position that laser range finder and laser reflection plate is set up in respectively the concrete floor dual-side, laser range finder and laser reflection plate together are subjected to displacement deformation with the Swelling and contraction of concrete floor, the laser range finder that laser range finder obtains synchro measure and the distance between the laser reflection plate, it is the distance between the concrete floor dual-side, transfer to computing machine, in computing machine, generate concrete floor cubic deformation curve.
Description of drawings
Fig. 1 is that the present invention utilizes laser radio stadia surveying mass concrete invert to build the synoptic diagram of the device of rear cubic deformation.
Fig. 2 is the cubic deformation curve of the concrete floor that an examples measure arrives among the present invention.
Embodiment
For the benefit of to the further understanding of structure of the present invention, the invention will be further described below in conjunction with specific embodiment.
Consult shown in Figure 1, the device 1 that utilizes laser radio stadia surveying mass concrete invert to build rear cubic deformation of the present invention mainly is comprised of a laser range finder 11 and a laser reflection plate 12, wherein, laser range finder 11 is placed in the galvanized steel plain sheet box 13, the sidewall of galvanized steel plain sheet box 13 offers plural through hole 14, the laser 110 of laser range finder emission 11 is outwards launched by the through hole 14 of galvanized steel plain sheet box 13 front sides, galvanized steel plain sheet box 11 is by the top of hinges fixing due to an A-frame 15, laser reflection plate 12 is the galvanized steel plain sheet of a 20*20cm, be welded in the top of a three-legged support 15, two three-legged supports 15 are individually fixed in the relative position of concrete floor 10 dual-sides in use, wherein, the foot of three-legged support 15 is welded with nut, be screwed on concrete floor 10, thereby laser range finder 11 and laser reflection plate 12 be set up in respectively the relative position of concrete floor 10 dual-sides.The signal of communication 111 of laser range finder 11 spreads out of by the through hole 14 of side, carries out radio communication with computing machine 16 in 500 meters scope.The laser 110 of laser range finder 11 emissions shines on the laser reflection plate 12, generate the distance signal between laser radio stadimeter 11 and the laser reflection plate 12, this distance signal is exactly the distance signal that concrete floor 10 connects between the side, and this distance signal transferred to computing machine 16, when concrete floor 10 Swelling and contractions are out of shape, this distance signal generation respective change of producing between laser range finder 11 and the laser reflection plate 12, by measuring the volume change curve that obtains concrete floor 10 with this distance signal of record, as shown in Figure 2.
The Specific construction that the present invention utilizes laser radio stadia surveying mass concrete invert to build the method for rear cubic deformation thes contents are as follows:
(1) chooses laser range finder 11, adjust communicating by letter of laser range finder 11 and computer 16, so that laser range finder 11 can carry out radio communication with computing machine 16 in 500 meters scope;
(2) use galvanized steel plain sheet to process a cube container, it is galvanized steel plain sheet box 13, laser range finder 11 is placed in the galvanized steel plain sheet box 13, galvanized steel plain sheet box 13 can protect laser range finder 11 not to be subjected to solar radiation and rainwater to water pouring, simultaneously offer plural through hole 14 in front and the side of galvanized steel plain sheet box 13, so that the laser 110 of laser range finder 11 emissions can spread out of by the through hole 14 of front, the wireless signal 111 of laser range finder 11 emissions can spread out of by the through hole 14 of side;
(3) use diameter to be two three-legged supports 15 of reinforcing bar processing of 18mm, the foot of three-legged support 15 is welded with nut, so that three-legged support 15 can be screwed on concrete floor 10;
(4) galvanized steel plain sheet box 13 usefulness hinges fixing due to the top of a three-legged support 15, at the galvanized steel plain sheet of the 20*20cm of welded top of another three-legged support 15, as laser reflection plate 12;
(5) Rectangular Concrete base plate 10 build finish and reach initial set after, immediately two three-legged supports 15 are fixed in the relative position of concrete floor 10 dual-sides, and the laser range finder 11 of in galvanized steel plain sheet box 13, packing into, open laser range finder 11 and the laser 110 of laser range finder 11 emissions can be shone on the laser reflection plate 12 of opposite three-legged support 15, and the distance signal between generation laser range finder 11 and the laser reflection plate 12, this distance signal is the distance signal between concrete floor 10 dual-sides namely, and this distance signal is transferred to computing machine 16;
(6) computing machine 16 receives this distance signal of laser range finder 11 emissions, automatically record record of production, when concrete floor 10 Swelling and contractions are out of shape, concrete floor 10 drives three-legged support 15 and is out of shape together, corresponding the changing of distance that two three-legged supports are 15, this distance signal generation respective change that generates between laser range finder and the laser reflection plate, by measure and recording laser stadimeter 11 and laser reflection plate 12 between distance signal just can obtain the volume change of concrete floor 10.
(7) surveying work continues 28 days, measure concrete floor 10 after building 28 days cubic deformation.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (9)
1. method of utilizing the cubic deformation of laser radio stadia surveying mass concrete invert is characterized in that described method includes but not limited to following order step:
Described concrete floor build finish and reach initial set after, a laser range finder that is connected with computing machine and a laser reflection plate are set up in respectively the relative position of described concrete floor dual-side;
The Ear Mucosa Treated by He Ne Laser Irradiation of opening described laser range finder and making described laser range finder emission generates the distance signal between described laser range finder and the described laser reflection plate, and described distance signal is transferred to described computing machine to described laser reflection plate;
When described concrete floor Swelling and contraction distortion, the distance signal generation respective change that generates between described laser range finder and the described laser reflection plate is by measuring the volume change that obtains described concrete floor with the described distance signal of record.
2. the method for claim 1, it is characterized in that: described laser range finder is placed in the galvanized steel plain sheet box in advance, described galvanized steel plain sheet box is set up on the described concrete floor by an A-frame, and offer plural through hole at the sidewall of described galvanized steel plain sheet box, the laser of described laser range finder emission is shone on the described laser reflection plate by described through hole.
3. the method for claim 1, it is characterized in that: described laser reflection plate is fixed by welding on the A-frame and is set up on the described concrete floor.
4. such as each described method in claim 2 or 3, it is characterized in that: the foot at described three-legged support is welded with nut, by screw described three-legged support is fixed on the described concrete floor.
5. device that utilizes the cubic deformation of laser radio stadia surveying mass concrete invert, it is characterized in that: described device comprises a laser range finder and a laser reflection plate, described laser range finder and described laser reflection plate are set up in respectively the relative position of described concrete floor dual-side, and described laser range finder connects a computing machine.
6. device as claimed in claim 5, it is characterized in that: described laser range finder is connected with described Computer Wireless Communication in 500 meters scope.
7. device as claimed in claim 5, it is characterized in that: described laser range finder is placed in the galvanized steel plain sheet box, the sidewall of described galvanized steel plain sheet box offers plural through hole, the laser of described laser range finder emission is outwards launched by described through hole, and described galvanized steel plain sheet box is set up on the described concrete floor by an A-frame.
8. device as claimed in claim 5, it is characterized in that: described laser reflection plate is the galvanized steel plain sheet of a 20*20cm, is set up on the described concrete floor by being welded on the three-legged support.
9. such as each described device in claim 7 or 8, it is characterized in that: the foot of described three-legged support is welded with nut, is screwed on described concrete floor.
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CN103604387A (en) * | 2013-12-11 | 2014-02-26 | 中国建筑第八工程局有限公司 | Measurement method for whole hydration heat constrained displacement of newly-poured concrete wall |
CN103604409A (en) * | 2013-12-03 | 2014-02-26 | 中国建筑第八工程局有限公司 | Newly-poured concrete floor slab overall shrinkage constraint deformation measuring method |
CN103630084A (en) * | 2013-12-11 | 2014-03-12 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
CN104534986A (en) * | 2014-12-22 | 2015-04-22 | 华北水利水电大学 | Material yard material measuring system based on laser measurement technology |
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CN103604409A (en) * | 2013-12-03 | 2014-02-26 | 中国建筑第八工程局有限公司 | Newly-poured concrete floor slab overall shrinkage constraint deformation measuring method |
CN103604409B (en) * | 2013-12-03 | 2017-02-01 | 中国建筑第八工程局有限公司 | Newly-poured concrete floor slab overall shrinkage constraint deformation measuring method |
CN103630084A (en) * | 2013-12-11 | 2014-03-12 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
CN103604387B (en) * | 2013-12-11 | 2016-01-20 | 中国建筑第八工程局有限公司 | Young concrete body of wall overall hydration heat constrained displacement measuring method |
CN103630084B (en) * | 2013-12-11 | 2017-01-11 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
CN103604387A (en) * | 2013-12-11 | 2014-02-26 | 中国建筑第八工程局有限公司 | Measurement method for whole hydration heat constrained displacement of newly-poured concrete wall |
CN104534986A (en) * | 2014-12-22 | 2015-04-22 | 华北水利水电大学 | Material yard material measuring system based on laser measurement technology |
CN105021132A (en) * | 2015-07-15 | 2015-11-04 | 国家电网公司 | Laser non-contact type centrally-installed cabinet handcart contact stroke tester |
CN105182354A (en) * | 2015-07-16 | 2015-12-23 | 山东钢铁股份有限公司 | Continuously-casted slab measuring device and use method thereof |
CN105277440B (en) * | 2015-11-20 | 2018-06-29 | 王旭明 | A kind of air-conditioning heating tube pressure resistance detection device |
CN105277440A (en) * | 2015-11-20 | 2016-01-27 | 王旭明 | Device for detecting pressure resistance of air-conditioner heating tubes |
CN106403834A (en) * | 2016-09-26 | 2017-02-15 | 中国建筑第八工程局有限公司 | Cast-in-place concrete deformation measuring system and measuring method thereof |
CN109506581A (en) * | 2016-09-26 | 2019-03-22 | 中国建筑第八工程局有限公司 | A kind of laser reflection slab adjusting device for cast-in-place concrete deformation measuring system |
CN106403834B (en) * | 2016-09-26 | 2019-12-13 | 中国建筑第八工程局有限公司 | cast-in-place concrete deformation measuring system and measuring method thereof |
CN107037440A (en) * | 2017-06-22 | 2017-08-11 | 郑胜芳 | Laser range finder for traffic engineering quality testing |
CN107037440B (en) * | 2017-06-22 | 2023-11-24 | 内蒙古公路工程咨询监理有限责任公司 | Laser range finder for traffic engineering quality detection |
CN108872300A (en) * | 2018-09-21 | 2018-11-23 | 华北水利水电大学 | A kind of full laser type material thermal expansion coefficient measuring quickly and automatically device |
CN111889920A (en) * | 2020-07-28 | 2020-11-06 | 中车大连电力牵引研发中心有限公司 | Wireless closed-loop control method and device for inhibiting welding deformation of medium plate based on laser and storage medium |
CN111889920B (en) * | 2020-07-28 | 2022-07-05 | 中车大连电力牵引研发中心有限公司 | Wireless closed-loop control method and device for inhibiting welding deformation of medium plate based on laser and storage medium |
CN113029032A (en) * | 2021-03-26 | 2021-06-25 | 中南大学 | High-precision surface shape measuring method and device based on spectrum confocal |
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