CN103438820A - Borehole profile rock and soil mass layered deformation optical fiber measuring method - Google Patents
Borehole profile rock and soil mass layered deformation optical fiber measuring method Download PDFInfo
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- CN103438820A CN103438820A CN2013103990920A CN201310399092A CN103438820A CN 103438820 A CN103438820 A CN 103438820A CN 2013103990920 A CN2013103990920 A CN 2013103990920A CN 201310399092 A CN201310399092 A CN 201310399092A CN 103438820 A CN103438820 A CN 103438820A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 85
- 239000002689 soil Substances 0.000 title claims abstract description 56
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- 238000007789 sealing Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000012937 correction Methods 0.000 claims description 7
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- 238000007569 slipcasting Methods 0.000 claims description 6
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Abstract
The invention discloses a borehole profile rock and soil mass layered deformation optical fiber measuring method. A measurement point is selected, and a soil layer is cataloged after being bored. When a hole is formed, a sensing optical fiber is laid and then the hole is backfilled. When the rock and soil mass around the sensing optical fiber deforms, the sensing optical fiber is driven to be deformed due to wrapping force of surrounding soil mass. Strain distribution of the sensing optical fiber is measured via BOTDR/A and other technologies so that strain distribution state of corresponding positions of a borehole profile is obtained. Integration of the corresponding positions is performed on the obtained strain along the optical fiber so that deformation state of each soil layer in deep rock and soil mass can be obtained. Therefore, distributed type measurement of borehole profile rock and soil mass layered deformation is realized. The method is applicable to the field of rock and soil mass deformation monitoring, such as ground subsidence, ground collapse, mines, etc.
Description
Technical field
The present invention relates to a kind of deformation measurement method of Rock And Soil, specifically a kind of borehole sections Rock And Soil layering distortion optical fibre measuring method.
Background technology
The exploitation of subterranean resource often easily causes the Rock And Soil distortion, causes the disasters such as Earth cave, surface collapse.Tunnel and goaf that particularly coal mining forms, Rock And Soil on every side is stressed to change, and causes the problems such as soil layer distortion, top board come off.For the problems referred to above, adopting the distortion of each layer of Rock And Soil of boring observation channel measurement is one of Main Means adopted at present.Therefore select effective borehole sections Rock And Soil deformation measurement method to be even more important.
In existing soil deformation measuring technique, monitoring technology mainly contains synthetic aperture interferometer radar (INSAR), GPS (GPS) and measurement of the level etc. on a large scale, wherein the INSAR technology is a kind of new spatial earth observation technology, areal is adopted to the echoed signal of interferometric method document image and phase place, obtain ground surface three dimensional physical geometric properties, obtain interference image by the phase differential that contrasts two width SAR images, and then obtain the ground elevation data from interference fringe, thereby realize settlement monitoring.The GPS technology is to utilize artificial satellite to carry out the trilateration location to an area, and the ground elevation data of obtaining according to location realize settlement monitoring.Synthetic aperture interferometer radar (INSAR) can be realized interior in a big way settlement monitoring with GPS (GPS) monitoring technology, is mainly used in zonal settlement monitoring research.Monitoring technology mainly contains the methods such as traditional measurement of the level, base-rock marker and layering mark among a small circle.Measurement of the level claims again " geometric leveling ", is the method for the point-to-point transmission discrepancy in elevation on ground of measuring with spirit-leveling instrument and levelling pole, can in settlement monitoring more among a small circle, obtain higher monitoring accuracy.Base-rock marker and layering mark monitoring technology are by burying base-rock marker and layering mark underground, and monitoring be take each layer compression (expansions) that bedrock surface is leveling point and measured, thereby obtain deflection and the ground settlement of each soil layer.
INSAR, GPS in above-mentioned monitoring technology, measurement of the level can not be for Rock And Soil layering deformation measurement.Base-rock marker and layering mark can be realized the layering deformation measurement of each Rock And Soil, but this technology belongs to conventional port, measure, and have the deficiencies such as the difficulty of enforcement is large, data volume finite sum sensing density is lower.The present invention be directed to problem and difficult point that Rock And Soil layering deformation monitoring exists, a kind of borehole sections Rock And Soil layering distortion optical fibre measuring method of proposition.
Summary of the invention
The present invention seeks to: in order to overcome the existing deficiency for Rock And Soil layering distortion routine monitoring ways and means, propose a kind of borehole sections Rock And Soil layering distortion optical fibre measuring method.
For achieving the above object, the technical scheme of taking of the present invention is:
Step 3 is the sealing of hole coupling: after embedded fibers, employing is admixed bentonitic fine sand and is carried out the backfill sealing of hole, and described backfill sealing of hole step or replacement are adopted as uses high-mark cement interpolation fine aggregate and accelerating chemicals to advance segmenting slip casting, and every segment length is 2-3 rice; In the process of described backfill, sensing optical fiber is in stretching state; The tail optical fiber of head is carried out after welding being integrated in the chest that the drilling orifice place arranges and protected, set up the fixedly pulley of sensing optical fiber after backfill in aperture;
Step 4 is observation: during sensing optical fiber Rock And Soil deformation on every side, measure the Strain Distribution of sensing optical fiber by BOTDR/A or BOFDA, obtain the Strain Distribution situation of borehole sections relevant position, the integration that the strain of obtaining is carried out to relevant position along optical fiber draws the deformation of deep each soil layer of Rock And Soil.
The present invention compared with prior art, has following beneficial effect:
1) realize borehole sections Rock And Soil layering distortion distributed measurement, overcome conventional measurement techniques as base-rock marker and the discontinuous defect of layering mark measuring point;
2) adopted direct burial and earth material backfill boring method to be laid, can make optical fiber and surrounding soil compatible deformation, each layer of deformation of Measurement accuracy Rock And Soil;
3) the method can monitor the STRESS VARIATION value of each point on whole borehole sections, can realize accurately location to the soil layer that produces distortion in Rock And Soil;
4) borehole sections Rock And Soil layering distortion optical fibre measuring method adopts packaged fiber and light signal, can overcome the rugged surroundings such as measured zone humidity, acid, alkali, the temperature difference are large.
The accompanying drawing explanation
Accompanying drawing 1 is borehole sections direct burial distributed fiber optic sensing method schematic diagram
Accompanying drawing 2 is led the hammer schematic diagram for counterweight
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, basic skills of the present invention is as follows:
Step 3 is the sealing of hole coupling: after embedded fibers, employing is admixed a small amount of bentonitic fine sand and is carried out the backfill sealing of hole, described backfill sealing of hole step is replaceable is that the use high-mark cement adds appropriate fine aggregate (as flour sand and flyash) and accelerating chemicals advances segmenting slip casting, be that described backfill sealing of hole and described accelerating chemicals slip casting are carried out in segmentation, every segment length is 2-3 rice; In the process of described backfill, sensing optical fiber 2 is in stretching state; The tail optical fiber of head is carried out after welding being integrated in the chest that the hell place arranges and protected, set up the fixedly pulley of sensing optical fiber 2 after backfill in aperture; Wherein, bentonitic content is 4%-6%;
Step 4 is observation: during sensing optical fiber 2 Rock And Soil deformation on every side, by BOTDR/A or BOFDA(Distributed Optical Fiber Sensing Techniques) measure the Strain Distribution of sensing optical fiber 2, obtain the Strain Distribution situation of borehole sections relevant position, the integration that the strain of obtaining is carried out to relevant position along optical fiber draws the deformation of deep each soil layer of Rock And Soil.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. optical fibre measuring method is out of shape in a borehole sections Rock And Soil layering, it is characterized in that: direct-burried laying optical fiber in boring, the backfill soil sample, utilize Rock And Soil parcel power to make sensing optical fiber (2) and Rock And Soil compatible deformation on every side, obtain the deformation of each soil layer of Rock And Soil of optical fiber relevant position by the Strain Distribution of measuring sensing optical fiber, realize borehole sections Rock And Soil layering distortion distributed measurement, the method comprises the steps:
1) Completion of Drilling Hole: the State selective measurements point, adopt rig to carry out full core drill and advance, form a boring;
2) optical fiber cable placed: after pore-forming, the distributed sensing optical fiber that adopts drilling rod to lead hammer (1) with counterweight is sent in boring, described sending in process, and controlling the drilling rod rate of sinking is 0.1m/s-0.5m/s, and controls counterweight by wire rope and lead hammer (1) sinking;
3) sealing of hole coupling: after embedded fibers, employing is admixed bentonitic fine sand and is carried out the backfill sealing of hole, and described backfill sealing of hole step or replacement are adopted as uses high-mark cement interpolation fine aggregate and accelerating chemicals to advance segmenting slip casting; Sensing optical fiber in the process of described backfill (2) is in stretching state; The tail optical fiber of head is carried out after welding being integrated in the chest that the drilling orifice place arranges and protected, set up the fixedly pulley of sensing optical fiber (2) after backfill in aperture;
4) observation: during sensing optical fiber (2) Rock And Soil deformation on every side, measure the Strain Distribution of sensing optical fiber (2) by BOTDR/A or BOFDA, obtain the Strain Distribution situation of borehole sections relevant position, the integration that the strain of obtaining is carried out to relevant position along optical fiber draws the deformation of deep each soil layer of Rock And Soil.
2. optical fibre measuring method is out of shape in borehole sections Rock And Soil layering according to claim 1; it is characterized in that: step 2); described optical fiber is the optical fiber with the optical fiber of sheath or employing secondary encapsulation; sensing optical fiber (2) is with to lead hammer fixing; the middle part of sensing optical fiber (2) is wrapped in leads on hammer; form " U " font loop at the symmetria bilateralis position of leading hammer, to optical fiber with lead bearing of tup section and carry out the pyrocondensation protection.
3. borehole sections Rock And Soil layering distortion optical fibre measuring method according to claim 1, is characterized in that: step 2), the diameter range of described boring is 130-200mm.
4. borehole sections Rock And Soil layering distortion optical fibre measuring method according to claim 1 is characterized in that arranging two optical fiber in boring simultaneously, and wherein one is sensing optical fiber, and one is temperature correction optical fiber.
5. optical fibre measuring method is out of shape in borehole sections Rock And Soil layering according to claim 1, it is characterized in that: step 3), sealing of hole after embedded fibers, alternately adopt and admix bentonitic fine sand and carry out the backfill sealing of hole and adopt high-mark cement to add fine aggregate and accelerating chemicals slip casting, be that described backfill sealing of hole and described accelerating chemicals slip casting are carried out in segmentation, every segment length is 2-3 rice.
6. optical fibre measuring method is out of shape in borehole sections Rock And Soil layering according to claim 4, it is characterized in that: in boring, arrange two optical fiber simultaneously, wherein one is sensing optical fiber, one is temperature correction optical fiber, is all that Metal Substrate strand optical cable for sensing forms optical cable with sensing optical fiber with together with temperature correction optical fiber with the reinforcement of GFRP glass fibre reinforcement.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374331A (en) * | 2014-11-18 | 2015-02-25 | 河海大学 | Optical fiber testing method for monitoring SMW construction method inward inserted H type steel deformation |
| CN105043285A (en) * | 2015-09-10 | 2015-11-11 | 北京航空航天大学 | Optical fiber sensor-based method for measuring deformation of beam with variable cross section |
| CN107543568A (en) * | 2017-09-15 | 2018-01-05 | 南京大学（苏州）高新技术研究院 | A kind of distributed sensing optical cable with boring distribution method and device |
| CN107941249A (en) * | 2017-10-31 | 2018-04-20 | 江苏省地质调查研究院 | A kind of device and installation method by optical fiber embedment deep drilling vertical core |
| CN108007779A (en) * | 2017-12-26 | 2018-05-08 | 南京大学 | A kind of sensing optic cable couples system safety testing device with soil deformation |
| CN108387989A (en) * | 2018-01-23 | 2018-08-10 | 广东电网有限责任公司清远供电局 | The underground laying of stress optical cable and guard method for substation's foundation displacement monitoring |
| CN108534730A (en) * | 2018-06-14 | 2018-09-14 | 昆山市建设工程质量检测中心 | A kind of device for measuring soil body deeply mixing cement-soil pile and surface settlement in real time |
| CN108844833A (en) * | 2018-08-22 | 2018-11-20 | 南京工业大学 | Simple sliding face multiple spot shear stress monitoring device and monitoring method |
| CN112361978A (en) * | 2020-11-04 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Rock-soil body deformation monitoring device based on distributed optical fiber |
| CN112412394A (en) * | 2020-11-11 | 2021-02-26 | 安徽理工大学 | Drilling layered filling method |
| CN113417272A (en) * | 2021-08-20 | 2021-09-21 | 江苏中云筑智慧运维研究院有限公司 | Foundation pit settlement real-time monitoring device and method based on fiber bragg grating |
| CN113503163A (en) * | 2021-07-22 | 2021-10-15 | 苏州大学 | Monitoring method for construction deformation of shield-driven underground diaphragm wall |
| CN113959470A (en) * | 2021-09-08 | 2022-01-21 | 中煤科工生态环境科技有限公司 | Coal mine goaf overlying strata moving distributed optical fiber measurement guide head and monitoring method |
| CN114518095A (en) * | 2021-12-28 | 2022-05-20 | 湖北三江航天红峰控制有限公司 | Rock-soil mass deep displacement monitoring method |
| CN116908983A (en) * | 2023-06-27 | 2023-10-20 | 昆山市建设工程质量检测中心 | Drilling direct-buried optical cable lowering anti-torsion device and method |
| CN117213443A (en) * | 2023-11-07 | 2023-12-12 | 江苏省地质调查研究院 | Construction and updating method of ground settlement monitoring network with integration of heaves, earth and depth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009294039A (en) * | 2008-06-04 | 2009-12-17 | Mie Univ | Structure deformation monitoring method using distribution type optical-fiber sensing system, and device thereof |
| CN201753600U (en) * | 2010-06-22 | 2011-03-02 | 河北钢铁集团矿业有限公司 | Optical fiber monitoring device for mine shaft deformation |
| CN103033139A (en) * | 2012-12-21 | 2013-04-10 | 中国水电顾问集团华东勘测设计研究院 | Measuring device for brillouin optical sensing type continuous multipoint displacement meter |
-
2013
- 2013-09-05 CN CN2013103990920A patent/CN103438820A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009294039A (en) * | 2008-06-04 | 2009-12-17 | Mie Univ | Structure deformation monitoring method using distribution type optical-fiber sensing system, and device thereof |
| CN201753600U (en) * | 2010-06-22 | 2011-03-02 | 河北钢铁集团矿业有限公司 | Optical fiber monitoring device for mine shaft deformation |
| CN103033139A (en) * | 2012-12-21 | 2013-04-10 | 中国水电顾问集团华东勘测设计研究院 | Measuring device for brillouin optical sensing type continuous multipoint displacement meter |
Non-Patent Citations (1)
| Title |
|---|
| 王刚: "鲍店煤矿钻孔植入光栅监测地层沉降***波长分析", 《中国优秀硕士论文学位沦为全文数据库工程科技Ⅰ辑》 * |
Cited By (23)
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| CN104374331A (en) * | 2014-11-18 | 2015-02-25 | 河海大学 | Optical fiber testing method for monitoring SMW construction method inward inserted H type steel deformation |
| CN105043285A (en) * | 2015-09-10 | 2015-11-11 | 北京航空航天大学 | Optical fiber sensor-based method for measuring deformation of beam with variable cross section |
| CN107543568A (en) * | 2017-09-15 | 2018-01-05 | 南京大学（苏州）高新技术研究院 | A kind of distributed sensing optical cable with boring distribution method and device |
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| CN107941249B (en) * | 2017-10-31 | 2020-03-17 | 江苏省地质调查研究院 | Device for embedding optical fiber into deep-drilled vertical hole and installation method |
| CN107941249A (en) * | 2017-10-31 | 2018-04-20 | 江苏省地质调查研究院 | A kind of device and installation method by optical fiber embedment deep drilling vertical core |
| CN108007779B (en) * | 2017-12-26 | 2020-07-03 | 南京大学 | Sensing optical cable and soil body deformation coupling testing device |
| CN108007779A (en) * | 2017-12-26 | 2018-05-08 | 南京大学 | A kind of sensing optic cable couples system safety testing device with soil deformation |
| CN108387989A (en) * | 2018-01-23 | 2018-08-10 | 广东电网有限责任公司清远供电局 | The underground laying of stress optical cable and guard method for substation's foundation displacement monitoring |
| CN108387989B (en) * | 2018-01-23 | 2023-09-01 | 广东电网有限责任公司清远供电局 | Stress optical cable underground laying and protecting method for monitoring foundation displacement of transformer substation |
| CN108534730A (en) * | 2018-06-14 | 2018-09-14 | 昆山市建设工程质量检测中心 | A kind of device for measuring soil body deeply mixing cement-soil pile and surface settlement in real time |
| CN108844833A (en) * | 2018-08-22 | 2018-11-20 | 南京工业大学 | Simple sliding face multiple spot shear stress monitoring device and monitoring method |
| CN108844833B (en) * | 2018-08-22 | 2023-07-04 | 南京工业大学 | Simple sliding surface multipoint shear stress monitoring device and monitoring method |
| CN112361978A (en) * | 2020-11-04 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Rock-soil body deformation monitoring device based on distributed optical fiber |
| CN112412394A (en) * | 2020-11-11 | 2021-02-26 | 安徽理工大学 | Drilling layered filling method |
| CN113503163A (en) * | 2021-07-22 | 2021-10-15 | 苏州大学 | Monitoring method for construction deformation of shield-driven underground diaphragm wall |
| CN113417272A (en) * | 2021-08-20 | 2021-09-21 | 江苏中云筑智慧运维研究院有限公司 | Foundation pit settlement real-time monitoring device and method based on fiber bragg grating |
| CN113959470A (en) * | 2021-09-08 | 2022-01-21 | 中煤科工生态环境科技有限公司 | Coal mine goaf overlying strata moving distributed optical fiber measurement guide head and monitoring method |
| CN114518095A (en) * | 2021-12-28 | 2022-05-20 | 湖北三江航天红峰控制有限公司 | Rock-soil mass deep displacement monitoring method |
| CN116908983A (en) * | 2023-06-27 | 2023-10-20 | 昆山市建设工程质量检测中心 | Drilling direct-buried optical cable lowering anti-torsion device and method |
| CN116908983B (en) * | 2023-06-27 | 2024-05-31 | 昆山市建设工程质量检测中心 | Drilling direct-buried optical cable lowering anti-torsion device and method |
| CN117213443A (en) * | 2023-11-07 | 2023-12-12 | 江苏省地质调查研究院 | Construction and updating method of ground settlement monitoring network with integration of heaves, earth and depth |
| CN117213443B (en) * | 2023-11-07 | 2024-03-19 | 江苏省地质调查研究院 | Construction and updating method of ground settlement monitoring network with integration of heaves, earth and depth |
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Application publication date: 20131211 |