CN204902782U - Side slope deep warp monitoring system based on distributed optical fiber - Google Patents
Side slope deep warp monitoring system based on distributed optical fiber Download PDFInfo
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- CN204902782U CN204902782U CN201520701412.8U CN201520701412U CN204902782U CN 204902782 U CN204902782 U CN 204902782U CN 201520701412 U CN201520701412 U CN 201520701412U CN 204902782 U CN204902782 U CN 204902782U
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Abstract
The utility model relates to a side slope deep warp monitoring system based on distributed optical fiber. It includes deviational survey unit, linkage unit, distributed optical fiber, distributed optical fiber modem appearance, surveys hole and backfill, the deviational survey unit comprises the deviational survey pipe that the outside has four recesses, is fixed with the distributed optical fiber who passes through the ribbon in this recess, the deviational survey unit has the multistage, connects in order to constitute the distributed optical fiber carrier through the linkage unit, the distributed optical fiber modem appearance is connected with the fiber pigtail at distributed optical fiber carrier top, carries out fiber strain data acquisition, it has the distributed optical fiber carrier in side slope deep, its interpolation to survey the hole site, the backfill is filled out between the space of surveying hole and distributed optical fiber carrier. Therefore, the utility model discloses but the wide application is particularly useful for the early deformation perception to side slope, landslide in the deep deformation monitoring of side slope, landslide engineering, can provide data and support for side slope, landslide monitoring and early warning.
Description
Technical field
The utility model belongs to technical field of civil engineering, specifically, relates to a kind of side slope deep deformation monitoring system based on distribution type fiber-optic.
Background technology
China's expressway construction is started late, and the seriousness of slope problem comes out.Although Real-Time Monitoring has been accomplished in external slope of highway monitoring, domestic slope of highway monitoring and prediction has been carried out less.For a long time, the security of slope project mainly relies on design to ensure.But because Rock And Soil is complicated, rock-soil mechanics still has the semi-theoretical feature of semiempirical, the degree of safety of Geotechnical Engineering is made judge to also have larger difficulty accurately over time and space.Therefore particularly serious to consequence of failure to slope of highway emphasis side slope should have corresponding monitoring means, carries out monitoring and the dynamic complementation designing, construct, reconnoitre, to monitor and to reconnoitre design, construction, guarantees the normal operation of engineering safety and highway.At present, routine monitoring method measuring point is laid and is adopted point type to lay, and point sensor costly, and is usually rule of thumb laid when carrying out measuring point and selecting, normal with certain blindness, the later stage there will be some position and occurs excessive deformation but the problem causing engineering disease without Monitoring Data.The many employings of conventional Slope table monitoring method bury GPS measuring point underground domatic, or adopt total powerstation to monitor pre-buried measuring point, and GPS measuring point somewhat expensive, total powerstation adopts personal monitoring, and awful weather situation cannot be implemented.And slope table distortion to be accumulated at side slope deep deformation and to a certain degree to occur afterwards.Slope table distortion often lags behind deep deformation, therefore slope table distortion is remained to be discussed as monitoring and warning data security.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides that a kind of economy saves time, the side slope deep deformation monitoring system based on distribution type fiber-optic of convenient and efficient.
A kind of side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described monitoring system comprises deviational survey unit 1, linkage unit 2, distribution type fiber-optic 3, distribution type fiber-optic modulation /demodulation instrument 4, gaging hole 6 and backfill 7; Described deviational survey unit 1 is made up of the inclinometer pipe of outside with four groove A101, in this groove A101 by band 102 be fixed with through distribution type fiber-optic 3; Described deviational survey unit 1 has multistage, connects to form distribution type fiber-optic carrier by linkage unit 2; Described distribution type fiber-optic modulation /demodulation instrument 4 is connected with the fiber pigtail of distribution type fiber-optic carrier top, carries out fibre strain data acquisition; Described gaging hole 6 is positioned at side slope deep, is inserted with distribution type fiber-optic carrier in it; Described backfill 7 is filled out between the space of gaging hole 6 and distribution type fiber-optic carrier.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described gaging hole 6 diameter is 108mm.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described inclinometer pipe external diameter is 80mm, wall thickness 10mm, and length is 1.5m.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described inclinometer pipe lateral wall has the groove A101 that four semicircular radiuses be evenly distributed are 3mm.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, four optical fiber are fixed in four groove A101 by six roots of sensation band 102 by described deviational survey unit 1, constant spacing 20cm.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described linkage unit 2 internal diameter is 82mm, wall thickness 10mm, length 20cm.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, described linkage unit 2 madial wall has the groove B201 that four semicircular radiuses be evenly distributed are 3mm.
Side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model, when described linkage unit 2 is connected with deviational survey unit 1, the groove B201 of linkage unit 2 should align with the groove A101 of deviational survey unit 1.
Compared with prior art, side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model is by burying underground in plain stage of slope boring by distribution type fiber-optic, making optical fiber and soil body compatible deformation, reflecting different deep places of this gaging hole place side slope internal modification situation by monitoring single fibre strain gaging hole; By the multiple deep deformation gaging hole of Reasonable Arrangement, form monitoring network, finally realize the monitoring to whole slope deforming rule; The deformation data of its monitoring method collection is far longer than conventional port monitoring method, and due to optical fiber expense, comparatively point sensor is low simultaneously, therefore reduces monitoring expense, improves slope monitoring efficiency.Therefore, the utility model can be widely used in the deep deformation monitoring of side slope, landslide engineering, is particularly useful for the early deformation perception to side slope, landslide, can be side slope, landslide monitoring early warning provides data supporting.
Accompanying drawing explanation
Fig. 1: based on the side slope deep deformation monitoring system figure of distribution type fiber-optic; Fig. 2: deviational survey unit section figure; Fig. 3: deviational survey unit connection diagram; Deviational survey unit-1, groove A-101, band-102, linkage unit-2, groove B-201, distribution type fiber-optic-3, distribution type fiber-optic modulation /demodulation instrument-4, gaging hole-6, backfill-7.
Embodiment
Below in conjunction with specific embodiment, the side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model is described further, but protection domain of the present utility model is not limited to this.
Embodiment 1
Based on a side slope deep deformation monitoring system for distribution type fiber-optic, comprise deviational survey unit 1, linkage unit 2, distribution type fiber-optic 3, distribution type fiber-optic modulation /demodulation instrument 4, gaging hole 6 and backfill 7; Described deviational survey unit 1 is made up of the inclinometer pipe of outside with four groove A101, in this groove A101 by band 102 be fixed with through distribution type fiber-optic 3; Described deviational survey unit 1 has multistage, connects to form distribution type fiber-optic carrier by linkage unit 2; Described distribution type fiber-optic modulation /demodulation instrument 4 is connected with the fiber pigtail of distribution type fiber-optic carrier top, carries out fibre strain data acquisition; Described gaging hole 6 is positioned at side slope deep, is inserted with distribution type fiber-optic carrier in it; Described backfill 7 is filled out between the space of gaging hole 6 and distribution type fiber-optic carrier.Described gaging hole 6 diameter is 108mm.Described inclinometer pipe external diameter is 80mm, wall thickness 10mm, and length is 1.5m.Described inclinometer pipe lateral wall has the groove A101 that four semicircular radiuses be evenly distributed are 3mm, and namely adjacent grooves and the inclinometer pipe center of circle are 90 degree of angles.Four optical fiber are fixed in four groove A101 by six roots of sensation band 102 by described deviational survey unit 1, constant spacing 20cm.Described linkage unit 2 internal diameter is 82mm, wall thickness 10mm, length 20cm.Described linkage unit 2 madial wall has the groove B201 that four semicircular radiuses be evenly distributed are 3mm, and namely the center of circle of adjacent grooves and linkage unit 2 is 90 degree of angles.When described linkage unit 2 is connected with deviational survey unit 1, the groove B201 of linkage unit 2 should align with the groove A101 of deviational survey unit 1.
Certain highway loess slope slope height 40m, altogether Pyatyi, each berm width is followed successively by 2m, 2m, 8m, 4m from top to bottom.Choose third level platform as deep soils platform, third level platform to basement rock height is 60m.The concrete installation of this side slope deep deformation monitoring system is operating as: 1. hole.In the boring of third level plain stage of slope, hole depth 62m, is drilled into 2m place under basement rock.Aperture is φ 108mm.2. wear optical fiber, transfer first segment deviational survey unit.Four optical fiber are fixed in four grooves of inclinometer pipe with 20cm spacing band.Inclinometer pipe diameter is φ 80mm.By the first segment deviational survey unit with optical fiber slowly under put into gaging hole, until protruded length is about 20cm.3. deviational survey unit is extended.Employing internal diameter is that second section deviational survey unit connects by the linkage unit of 82mm, and method fixed fiber in adopting step 2., transfers inclinometer pipe.4. optical fiber is in place, position mark.Repeat step 3., until inclinometer pipe is transferred at the bottom of hole in place.Aperture inclinometer pipe exposes about 20cm.The reserved comparatively deviational survey pipe range 1m of optical fiber, exposure fiber optic protection is good, and according to optical fiber position in inclinometer pipe, carry out mark in fiber stub, facilitate subsequent data acquisition.5. with sand, by inclinometer pipe, around hole and inclinometer pipe inner pore fill up with boring.6. deformation monitoring.Distribution type fiber-optic modulation /demodulation instrument is accessed respectively, gathers the light signal information of optical fiber along whole hole depth.Regular reading fibre strain data, with initial reading contrast, namely obtain the deformation of side slope at this gaging hole place along depth direction.7. distribution type fiber-optic modulation /demodulation instrument is accessed four optical fiber end points respectively, gather the light signal information of optical fiber along whole hole depth.Namely the deformation of side slope at this gaging hole place along depth direction is obtained.By the optical signal analysis of same depth four optical fiber, the deformation direction of this some place country rock also can be obtained.
Compared with prior art, side slope deep deformation monitoring system based on distribution type fiber-optic described in the utility model is by burying underground in plain stage of slope boring by distribution type fiber-optic, making optical fiber and soil body compatible deformation, reflecting different deep places of this gaging hole place side slope internal modification situation by monitoring single fibre strain gaging hole.By the multiple deep deformation gaging hole of Reasonable Arrangement, form monitoring network, finally realize the monitoring to whole slope deforming rule.The deformation data of its monitoring method collection is far longer than conventional port monitoring method, and due to optical fiber expense, comparatively point sensor is low simultaneously, therefore reduces monitoring expense, improves slope monitoring efficiency.Therefore, the utility model can be widely used in the deep deformation monitoring of side slope, landslide engineering, is particularly useful for the early deformation perception to side slope, landslide, can be side slope, landslide monitoring early warning provides data supporting.
Claims (8)
1. the side slope deep deformation monitoring system based on distribution type fiber-optic, it is characterized in that, described monitoring system comprises deviational survey unit (1), linkage unit (2), distribution type fiber-optic (3), distribution type fiber-optic modulation /demodulation instrument (4), gaging hole (6) and backfill (7); Described deviational survey unit (1) is made up of the inclinometer pipe of outside with four groove A (101), in this groove A (101) by band (102) be fixed with through distribution type fiber-optic (3); Described deviational survey unit (1) has multistage, is connected by linkage unit (2) to form distribution type fiber-optic carrier; Described distribution type fiber-optic modulation /demodulation instrument (4) is connected with the fiber pigtail of distribution type fiber-optic carrier top, carries out fibre strain data acquisition; Described gaging hole (6) is positioned at side slope deep, is inserted with distribution type fiber-optic carrier in it; Described backfill (7) is filled out between the space of gaging hole (6) and distribution type fiber-optic carrier.
2. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, it is characterized in that, described gaging hole (6) diameter is 108mm.
3. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, is characterized in that, described inclinometer pipe external diameter is 80mm, wall thickness 10mm, and length is 1.5m.
4. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, is characterized in that, described inclinometer pipe lateral wall has the groove A (101) that four semicircular radiuses be evenly distributed are 3mm.
5. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, it is characterized in that, four optical fiber are fixed in four groove A (101) by six roots of sensation band 102 by described deviational survey unit (1), constant spacing 20cm.
6. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, it is characterized in that, described linkage unit (2) internal diameter is 82mm, wall thickness 10mm, length 20cm.
7. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, is characterized in that, described linkage unit (2) madial wall has the groove B (201) that four semicircular radiuses be evenly distributed are 3mm.
8. the side slope deep deformation monitoring system based on distribution type fiber-optic according to claim 1, it is characterized in that, when described linkage unit (2) is connected with deviational survey unit (1), the groove B (201) of linkage unit (2) should align with the groove A (101) of deviational survey unit (1).
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| CN201520701412.8U CN204902782U (en) | 2015-09-10 | 2015-09-10 | Side slope deep warp monitoring system based on distributed optical fiber |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953962A (en) * | 2016-04-29 | 2016-09-21 | 重庆大学 | Landslide thrust testing device based on quantum dot and manufacturing method thereof |
| CN107014542A (en) * | 2017-04-21 | 2017-08-04 | 中国水利水电科学研究院 | A kind of intelligent safety monitoring slope system |
| CN108252288A (en) * | 2018-01-12 | 2018-07-06 | 河海大学 | A kind of deformation of deep excavation distributed monitoring system based on OFDR technologies |
| CN109186445A (en) * | 2018-08-15 | 2019-01-11 | 中国地质大学（武汉） | The test equipment and its application method of wireless monitor carbonaceous rock side slope surface deformation |
| CN109724520A (en) * | 2019-03-18 | 2019-05-07 | 重庆交通大学 | A kind of side slope deep displacement automatic monitoring system based on laser ranging |
| US20190331477A1 (en) * | 2018-04-06 | 2019-10-31 | Weir-Jones Engineering Consultants Ltd. | Systems and methods for monitoring structural integrity of slopes |
| CN110440696A (en) * | 2019-08-06 | 2019-11-12 | 山西省交通新技术发展有限公司 | A kind of side slope deep continuous dislocation monitoring device and method |
| CN110657905A (en) * | 2019-08-27 | 2020-01-07 | 山东大学 | Tunnel surrounding rock internal stress distributed monitoring device, construction method and monitoring method |
| CN112697997A (en) * | 2020-12-09 | 2021-04-23 | 南京大学 | Slope state inversion method based on distributed optical fiber strain sensing |
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2015
- 2015-09-10 CN CN201520701412.8U patent/CN204902782U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953962A (en) * | 2016-04-29 | 2016-09-21 | 重庆大学 | Landslide thrust testing device based on quantum dot and manufacturing method thereof |
| CN107014542A (en) * | 2017-04-21 | 2017-08-04 | 中国水利水电科学研究院 | A kind of intelligent safety monitoring slope system |
| CN108252288A (en) * | 2018-01-12 | 2018-07-06 | 河海大学 | A kind of deformation of deep excavation distributed monitoring system based on OFDR technologies |
| US20190331477A1 (en) * | 2018-04-06 | 2019-10-31 | Weir-Jones Engineering Consultants Ltd. | Systems and methods for monitoring structural integrity of slopes |
| US10731968B2 (en) * | 2018-04-06 | 2020-08-04 | Weir-Jones Engineering Consultants Ltd. | Systems and methods for monitoring structural integrity of slopes |
| US20200400427A1 (en) * | 2018-04-06 | 2020-12-24 | Weir-Jones Engineering Consultants Ltd. | Systems and methods for monitoring structural integrity of slopes |
| CN109186445A (en) * | 2018-08-15 | 2019-01-11 | 中国地质大学（武汉） | The test equipment and its application method of wireless monitor carbonaceous rock side slope surface deformation |
| CN109186445B (en) * | 2018-08-15 | 2020-01-17 | 中国地质大学（武汉） | Test equipment for wirelessly monitoring deformation of carbon rock slope surface and application method thereof |
| CN109724520A (en) * | 2019-03-18 | 2019-05-07 | 重庆交通大学 | A kind of side slope deep displacement automatic monitoring system based on laser ranging |
| CN110440696A (en) * | 2019-08-06 | 2019-11-12 | 山西省交通新技术发展有限公司 | A kind of side slope deep continuous dislocation monitoring device and method |
| CN110657905A (en) * | 2019-08-27 | 2020-01-07 | 山东大学 | Tunnel surrounding rock internal stress distributed monitoring device, construction method and monitoring method |
| CN112697997A (en) * | 2020-12-09 | 2021-04-23 | 南京大学 | Slope state inversion method based on distributed optical fiber strain sensing |
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