WO2020011110A1 - Mécanisme d'amplification de déformation de pente fondé sur un système de satellite de navigation beidou - Google Patents

Mécanisme d'amplification de déformation de pente fondé sur un système de satellite de navigation beidou Download PDF

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Publication number
WO2020011110A1
WO2020011110A1 PCT/CN2019/094857 CN2019094857W WO2020011110A1 WO 2020011110 A1 WO2020011110 A1 WO 2020011110A1 CN 2019094857 W CN2019094857 W CN 2019094857W WO 2020011110 A1 WO2020011110 A1 WO 2020011110A1
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WIPO (PCT)
Prior art keywords
cable
base
wire
fixed
support
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PCT/CN2019/094857
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English (en)
Chinese (zh)
Inventor
梁晓东
周俊华
熊用
杨振武
雷创业
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湖南联智桥隧技术有限公司
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Publication of WO2020011110A1 publication Critical patent/WO2020011110A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/51—Relative positioning

Definitions

  • the invention relates to the technical field of geological monitoring, and in particular to a slope deformation amplification mechanism based on the Beidou satellite navigation system.
  • slope deformation monitoring technology based on the Beidou satellite navigation system has begun to emerge. Thanks to the high accuracy of the Beidou system, centimeter-level deformation monitoring is possible.
  • the deformation of the slope is a process of slowly accumulating and changing from quantity to quality, so how to quickly and accurately identify the deformation trend in the slowly changing stage is a very meaningful thing.
  • Using the Beidou satellite navigation system to adopt the carrier phase difference Technologies such as millimeter-level accuracy can be obtained from long-term observation requirements.
  • the positioning error of the millimeter level will cover the slow deformation of the millimeter level of the slope, so it cannot be used for a short time.
  • the data can quickly determine the slope deformation trend.
  • the purpose of the present invention is to provide a slope deformation amplification mechanism based on the Beidou satellite navigation system to solve the problem of unrecognizable millimeter-level deformation.
  • the present invention provides a slope deformation amplification mechanism based on the Beidou satellite navigation system, which includes a monitoring pile main body portion, an amplification mechanism portion located at the top of the monitoring pile main portion, a cable connection portion at the bottom of the monitoring pile main portion, Displacement detection section at the other end of the cable connection section.
  • the main body of the monitoring pile includes a post and a support base, and the bottom end of the post is fixed on the support base.
  • the amplifying mechanism part includes a fixed base and a rotating antenna support;
  • the fixed base further includes a base, a compression spring, a limit plate, and a tension spring;
  • the rotating antenna support also includes a support rod, a ring bolt, a positioning antenna, a sliding nut, and a positioning bolt Draw wire retaining ring;
  • the base is installed at the top of the column, and the support rod is connected to the base through a pin;
  • the limit plate is connected to the base through a compression spring and fixed with a pin; one end of the tension spring is connected with the support rod through a ring bolt, The other end is connected to the base through a pin;
  • the positioning antenna is fixed at the top of the support rod;
  • the side of the support rod is provided with a sliding groove matching the sliding nut, and the cable retaining ring is fixed by the positioning bolt and the sliding nut.
  • the cable connecting part includes a cable head and a cable tail;
  • the cable head includes a cable head, a cable, a hollow stud, a cable support and a cable sleeve;
  • the cable head is inserted into the cable retaining ring of the rotating antenna bracket part, and the hollow stud It is fixed on the cable support by clamping nut;
  • the tail of the cable includes a rigid tube, an opening cover, and a solid stud;
  • the rigid tube is fixedly connected to the side of the bottom of the column;
  • the opening cover is connected to the rigid tube by a thread, and the cable sleeve passes through the opening cover The small groove is stuck and fixed.
  • the displacement detecting part includes a detecting body and an adjusting ring; the detecting body includes a concrete block, a screw and a clamping nut; one end of the screw is fixedly connected with the concrete block, and the other end is connected with the adjusting ring through the clamping nut; the other end of the adjusting ring is through the card
  • the tightening nut is connected to the solid stud of the cable connecting portion.
  • ratchet teeth are provided on a portion of the support rod that is in contact with the limiting plate, and the size of the tooth groove is matched with the sectional size of the limiting plate.
  • the rigid pipe comprises a plurality of sections of pipes, which are fixedly connected through a corner joint to form a rigid whole.
  • the detection body includes a concrete block, a screw and a clamping nut; one end of the screw is fixedly connected to the concrete block, and the other end is connected to the adjusting ring through the clamping nut.
  • round holes are provided at both ends of the adjusting ring, and the tension of the cable is controlled by adjusting the corresponding clamping nut.
  • the main body of the monitoring pile further includes a photovoltaic power generation system and a distribution box, which are respectively connected to the posts through connecting plates and fastened with bolts.
  • a satellite receiver for receiving positioning antenna signals is placed in the distribution box.
  • a slope deformation amplifying mechanism based on the Beidou satellite navigation system of the present invention has a displacement amplification function, which can amplify the slow deformation of the slope millimeter level to the displacement change of the centimeter level or even more, so that the slope deformation
  • the trend can be quickly and accurately monitored without being limited by the positioning accuracy and the amount of observation data of the Beidou satellite navigation system.
  • the real displacement value can be derived from the enlarged data through the geometric relationship, and the slope deformation can be monitored. There is a big breakthrough in accuracy.
  • the support rod of the magnifying mechanism part is in a force-balanced state under the joint action of the pull wire and the tension spring to ensure the position of the positioning antenna is stable.
  • the limit plate continues to be supported on the support rod as it rotates under the action of the compression spring.
  • the support rod is provided with ratchet teeth. The support rod will not move even when the displacement detection part moves back and forth, swings or other special conditions. The wobble phenomenon will not interfere with the determination of the positioning data and ensure the accuracy of the data.
  • separating the displacement detecting portion from the main body portion of the monitoring pile and conducting displacement conduction through a wire drawing device is beneficial to reducing the volume and mass of the displacement detecting portion and enabling it to be more safely arranged to the landslide.
  • the movement of the soil can be more accurately captured and fed back.
  • the main part of the monitoring pile can be arranged in a safe area with wide field of vision, stable geology, and good signal, ensuring the stability of signal transmission quality, and photovoltaic power generation. Efficient operation of the system.
  • even a soil landslide occurs it will not affect the monitoring equipment and Beidou positioning system, which can ensure the normal operation of the system.
  • FIG. 1 is a structural diagram of the present invention
  • FIG. 2 is a schematic diagram of an enlarged mechanism part
  • Fig. 6 is a simplified diagram of the enlargement ratio calculation.
  • Amplification mechanism part 2. Pull wire connection part, 3. Monitoring pile main body part, 4. Displacement detection part, 1.1, Fixed base, 1.2, Rotating antenna bracket, 2.1, Pull head, 2.2, Pull tail, 4.1 Detector, 4.2, Adjustment ring, 1.1.1, Bolt, 1.1.2, Pin two, 1.1.3, Base, 1.1.4, Pin three, 1.1.5, Compression spring, 1.1.6, Limit Bit plate, 1.1.7, tension spring, 1.1.8, split pin two, 1.1.9, split pin three, 1.2.1, split pin one, 1.2.2, pin one, 1.2.3, support rod, 1.2.4, eye bolts, 1.2.5, positioning antenna, 1.2.6, slide nut, 1.2.7, positioning bolt, 1.2.8, cable retaining ring, 2.1.1, cable head, 2.1.2, cable, 2.1 .3, hollow studs, 2.1.4, clamping nut one, 2.1.5, clamping nut two, 2.1.6, cable support, 2.1.7, cable sleeve, 2.2.1, rigid tube, 2.2.2 Opening cover, 2.2.3, solid stud, 2.
  • FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6, a slope deformation amplifying mechanism based on the Beidou satellite navigation system. This embodiment is applied to the monitoring of road slope deformation.
  • a slope deformation amplifying mechanism based on a Beidou satellite navigation system includes an amplifying mechanism portion 1, a cable connecting portion 2, a monitoring pile main portion 3, and a displacement detecting portion 4;
  • the monitoring pile main portion 3 includes a post 3.1 and a support base 3.2, and a bottom of the post The end is fixed on the support base;
  • the enlargement mechanism part 1 includes a fixed base 1.1 and a rotating antenna bracket 1.2;
  • the fixed base 1.1 also includes a base 1.1.3, a compression spring 1.1.5, a limit plate 1.1.6, and a tension spring 1.1.
  • Rotating antenna bracket 1.2 also includes support rod 1.2.3, eye bolt 1.2.4, positioning antenna 1.2.5, sliding nut 1.2.6, positioning bolt 1.2.7, cable retaining ring 1.2.8; base 1.1.3 installation At the top of the column 3.1, it is fixed by bolts 1.1.1; the support rod 1.2.3 is rotatably connected to the base 1.1.3 through the pin 1.2.2; the limit plate 1.1.6 is connected to the base 1.1 by the compression spring 1.1.5.
  • the displacement detection section 4 includes a probe body 4.1 and an adjustment ring 4.2;
  • the cable connection section 2 includes a cable head 2.1 and a cable tail 2.2;
  • the cable head 2.1 includes a cable head 2.1.1, a cable 2.1.2, a hollow stud 2.1.3, Cable support 2.1.6 and cable sleeve 2.1.7; cable head 2.1.1 snaps onto the cable clamp ring 1.2.8 of the rotating antenna bracket part, and the hollow stud 2.1.3 is clamped by the clamping nut 2.1.4 and clamped
  • the second nut 2.1.5 is fixed on the cable support 2.1.6, and the antenna support is rotated with the pull of the cable;
  • the tail of the cable 2.2 includes a rigid tube 2.2.1, an opening cover 2.2.2, and a solid stud 2.2.3; rigid
  • the tube 2.2.1 is fixedly connected to the side of the bottom of the column;
  • the opening cover 2.2.2 is screwed to the rigid tube 2.2.1, and the cable sleeve 2.1.7 is fixed and fixed by the narrow groove on the opening cover 2.
  • Pin 1.2.2, pin 2.1.1, pin 3.1.1 and one end of the pin 1.1.4 are correspondingly provided with split pin 1.1.2, split pin two 1.1.8 and split pin three 1.1.9 to prevent The pin comes off when the mechanism is in use.
  • the part of the support rod 1.2.3 that is in contact with the limit plate 1.1.6 is provided with ratchet teeth.
  • the antenna bracket 1.2 can only rotate in one direction under the combined action of the tension spring 1.1.7 and the compression spring 1.1.5. At the same time, it can remain in a certain position.
  • the cable retaining ring 1.2.8 can be moved up and down on the support rod 1.2.3, and fastened by a positioning bolt, and different positions correspond to different displacement magnifications.
  • the rigid pipe 2.2.1 includes multiple sections of pipes, which are fixedly connected through a corner joint to form a rigid whole, and the length is determined according to actual needs.
  • the detection body 4.1 includes a concrete block 4.1.1, a screw 4.1.2; a concrete block 4.1.1 and a screw 4.1.2 are fixedly connected, and the screw 4.1.2 is through a clamping nut 5 4.1.4 and a clamping nut 6. 4.1.3 Connect with the adjustment ring 4.2.
  • the adjusting ring 4.2 has round holes at both ends, and the tension of the pulling wire 2.1.2 can be controlled by adjusting the corresponding clamping nut.
  • the main body of the monitoring pile further includes a photovoltaic power generation system and a distribution box, which are connected to the posts through connection plates and fastened with bolts, and a satellite receiver for receiving positioning antenna signals is placed in the distribution box.
  • the mechanism When the mechanism is arranged, firstly select the monitoring points prone to landslides, bury the displacement detection part at the monitoring points, and then choose the nearby foundation with a relatively solid foundation, a wide field of vision, and a good signal to erect the monitoring pile main part. After the whole device is installed, adjust the tension of the cable through the adjusting ring to make the positioning antenna at a proper starting position.
  • the displacement detection part When the soil at the monitoring point slips, the displacement detection part will be driven to slide slowly together, so that the cable is pulled, and the cable sleeve will not move under the constraints of the rigid pipe, the main body of the monitoring pile and the cable support, thus the cable displacement It will be faithfully transmitted to the cable snap ring, which will drive the support rod to rotate about the pin axis.
  • the rotation displacement of the positioning antenna is related to the tension displacement of the cable.
  • This proportional relationship is related to the cable snap ring
  • the position on the rod is related, and different magnification relationships can be obtained by adjusting the position to suit different project needs.
  • the true displacement of the slope can also be derived from this proportional relationship.
  • Point A is the cable support
  • point B is the fixing point of the tension spring and the base
  • point C is the position of the cable clamp on the pole
  • point D is the positioning antenna.
  • the point is the fixed point of the support pin
  • ED 1 indicates the position of the support rod before displacement
  • ED 2 indicates the position of the support rod after displacement.
  • right-angled triangle AEC 1 it can be obtained from the Pythagorean theorem,
  • the scale of the institution can be expressed as: Taking b as the independent variable (0 ⁇ b ⁇ a) and other parameters as constants, the derivative of function i can be obtained:
  • i ′ ⁇ 0 is constant, and the i function decreases monotonically. That is to say, the closer the pull wire snap ring is on the support rod to the base, the larger the enlargement ratio of the mechanism; conversely, the further away from the base, the smaller the enlargement ratio of the mechanism.
  • the strut Under normal circumstances, the strut is in a force-balanced state under the combined action of the tension wire and the tension spring to ensure the position of the positioning antenna is stable.
  • the displacement detection part moves to drive the strut to rotate a certain angle, the limit plate is compressed by the spring. Under the action, it continues to be supported on the support rod.
  • the support rod is provided with ratchet teeth. Even under the back and forth movement, swing or other special conditions of the displacement detection part, the support rod will not swing and will not be positioned. The judgment of the data is disturbed to ensure the accuracy of the data.
  • the slope's displacement accumulation may reach the maximum detection value of the displacement amplification mechanism.
  • the positioning antenna can be returned to a suitable starting position. Continue normal monitoring.
  • a slope deformation amplifying mechanism based on the Beidou satellite navigation system the soil displacement is amplified by the mechanism and transmitted to the positioning antenna of the Beidou satellite receiver, so that the millimeter-level slow deformation of the slope can be amplified to the centimeter level or even more.
  • the large-scale displacement change enables the slope deformation trend to be quickly and accurately monitored without being limited by the positioning accuracy and the amount of observation data.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

L'invention concerne un mécanisme d'amplification de déformation de pente fondé sur un système de satellite de navigation BeiDou comprenant une partie mécanisme d'amplification (1), une partie connexion de câble (2), une partie corps d'arbre de surveillance (3) et une partie détection de déplacement (4). La partie corps d'arbre de surveillance (3) comprend une colonne (3.1) et une base de support (3.2), et une extrémité inférieure de la colonne (3.1) est fixée à la base de support (3.2). La partie mécanisme d'amplification (1) comprend une base fixe (1.1) et un support d'antenne rotatif (1.2). La base fixe (1.1) comprend en outre une base (1.1.3), un ressort comprimé (1.1.5), une plaque de limitation de position (1.1.6), et un ressort tendu (1.1.7). Le support d'antenne rotatif (1.2) comprend en outre une entretoise (1.2.3), un piton (1.2.4), une antenne de limitation de position (1.2.5), un écrou coulissant (1.2.6), une vis de limitation de position (1.2.7), et un fermoir de câble (1.2.8). La partie de détection de déplacement (4) comprend un corps de détection (4.1) et un anneau de réglage (4.2). La partie de connexion de câble (2) comprend une partie tête de câble (2.1) et une partie queue de câble (2.2). La partie tête de câble (2.1) comprend une tête de câble (2.1.1), un câble (2.1.2), un goujon creux (2.1.3), une base de support de câble (2.1.6), et un manchon de câble (2.1.7). La partie queue de câble (2.2) comprend un tube rigide (2.2.1), un couvercle d'ouverture (2.2.2) et un goujon solide (2.2.3). La présente invention présente une fonction d'amplification de déplacement, et permet d'amplifier une déformation lente d'une pente de l'ordre de quelques centimètres, ce qui améliore fortement la précision de surveillance de la déformation de pente.
PCT/CN2019/094857 2018-07-09 2019-07-05 Mécanisme d'amplification de déformation de pente fondé sur un système de satellite de navigation beidou WO2020011110A1 (fr)

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CN201810743256.X 2018-07-09
CN201810743256.XA CN108387166B (zh) 2018-07-09 2018-07-09 一种基于北斗卫星导航系统的边坡形变放大机构

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Cited By (1)

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CN114963964A (zh) * 2022-05-20 2022-08-30 南昌大学 基于北斗的地表及深层三维空间变形监测装置及数据处理方法

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CN108387166B (zh) * 2018-07-09 2018-10-16 湖南联智桥隧技术有限公司 一种基于北斗卫星导航系统的边坡形变放大机构
CN109751951B (zh) * 2019-03-06 2024-01-30 湖南联智监测科技有限公司 一种边坡形变监测装置的安装装置
CN109785587B (zh) * 2019-03-12 2023-12-22 湖南联智科技股份有限公司 一种基于北斗卫星定位的监测装置
CN110700333B (zh) * 2019-10-18 2021-07-09 四川盐业地质钻井大队 一种基于北斗卫星导航的边坡变形放大装置
CN111426263B (zh) * 2020-06-10 2020-10-09 湖南联智科技股份有限公司 一种基于北斗的边坡监测装置及监测方法
CN111811422B (zh) * 2020-07-30 2021-08-27 中国水利水电科学研究院 一种基于锚索稳固的岩石边坡形变在线监测采集装置

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CN114963964B (zh) * 2022-05-20 2024-01-26 南昌大学 基于北斗的地表及深层三维空间变形监测装置及数据处理方法

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