CN107101624A - Geological deformation stereo observing system and its Embedded installation method, measuring method - Google Patents

Geological deformation stereo observing system and its Embedded installation method, measuring method Download PDF

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Publication number
CN107101624A
CN107101624A CN201710370967.2A CN201710370967A CN107101624A CN 107101624 A CN107101624 A CN 107101624A CN 201710370967 A CN201710370967 A CN 201710370967A CN 107101624 A CN107101624 A CN 107101624A
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gnss
axis
deformation
straight tubes
geological
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CN107101624B (en
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汪小刚
姜龙
赵宇飞
王玉杰
段庆伟
刘立鹏
孙平
林兴超
曹瑞琅
郑理峰
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The invention discloses a kind of geological deformation stereo observing system and its Embedded installation method, and the geology internal modification measuring method realized based on geological deformation stereo observing system.Stereo observing system includes the three-dimensional positive and negative two direction inertia sensing and detecting system for being placed in underground, and is placed in the GNSS observation stations and information acquisition system of ground.Three-dimensional positive and negative two direction inertia sensing and detecting system includes some MEMS sensors for joining end to end, being placed in along PVC straight tube axis in PVC straight tubes, and PVC straight tubes are placed in drilling, be perfused with cement grout in drilling and PVC straight tubes and cement grout has solidified.MEMS sensor includes a pair of inertial sensors of the positive and negative two-way setting in X, Y, Z axis respectively.GNSS observation stations are placed at drilling orifice and coaxial with PVC straight tubes.The present invention solves the indivedual monitoring points for having fixed the appearance of deviational survey instrument system the problem of cause monitoring result distortion extremely, it is ensured that monitoring result is closer to actual geological deformation situation.

Description

Geological deformation stereo observing system and its Embedded installation method, measuring method
Technical field
The present invention relates to a kind of geological deformation stereo observing system and the Embedded installation of the geological deformation stereo observing system Method, and the geology internal modification measuring method realized based on the geological deformation stereo observing system, belong to Geotechnical Engineering Geological deformation monitors field.
Background technology
The deformation monitoring of Geotechnical Engineering includes surface displacement observation and internal displacement observation.Deformation monitoring is mainly observation water Prosposition is moved and vertical displacement, grasps changing rule, and research has free from flaw, the trend for coming down, sliding and toppling.Conventional interior position Moving observation instrument has displacement meter, crack gauge, dipmeter, sedimentometer, fixed inclinometer, plumb line coordinator, tensile-line instrument, multiple spot to become Position meter and strain gauge etc..Surface displacement observation instrument has spirit level, total powerstation, GPS, three-dimensional laser scanning technique etc..
With the fast development of science and technology, safety monitoring technology is in fields such as water conservancy and hydropower, highway, railway, civil aviatons Constantly improving.At this stage, in such as hydraulic engineering for being related to control deformation dam, cavern, side slope, highway In terms of the roadbed of railway, and Civil Aviation Airport ground, typically using single-point type (sedimentation plate, sedimentation ring) and distribution (Gu Determine inclinometer, sedimentometer) mode carry out settlement monitoring.
At present, using MEMS related variation instruments, such as fixed inclinometer carries out deformation monitoring turns into the development of this area Trend, but it has only been applied in terms of Geotechnical Engineering side slope at this stage.It is normally, some to install referring to shown in Fig. 1 and Fig. 2 The fixation inclinometer 91 for having MEMS (MEMS) inertial sensor 92 is connected by rigid connecting rod 93.During measurement, mutually End to end fixed inclinometer 91 is inserted inside geology to be measured, as shown in Fig. 2 each MEMS inertia on fixed inclinometer 91 Sensor 92 is used as a monitoring point.When observing geology internal modification, to originate or the MEMS inertial sensor 92 at the place of ending is made For Fixed Initial Point, by originated or ending at monitoring point absolute two-dimentional deformation values, you can extrapolate the absolute of each monitoring point Deflection, so as to carry out the accumulation calculating of deflection, the sedimentation result finally calculated is to be monitored relative at starting or ending The relative two dimensional deformation values of point.
As can be seen that the geology internal modification observation procedure that above-mentioned fixed deviational survey instrument system is realized is present from actual implement Following defect:First, influenceed by geological interface (tomography, crushed zone), the deflection of the monitoring point acquisition of indivedual fixed inclinometers There is larger difference with deformation tendency and actual geological deformation situation.Such as Fig. 2, label 102 shows actual geological interface, by each There is larger difference with geology practical distortion in the deformation tendency line 101 that fixed inclinometer 91 is obtained.Second, above-mentioned fixed inclinometer System is only capable of realizing two-dimentional deformation observation, and measurement accuracy is relatively low, there is systematic error, and error amount can be with deformation accumulation calculating Process constantly adds up, so as to cause final result distortion phenomenon occur.
The content of the invention
It is an object of the invention to provide a kind of geological deformation stereo observing system and the geological deformation stereo observing system Embedded installation method, and based on the geological deformation stereo observing system realize geology internal modification measuring method, its solve The indivedual monitoring points for having fixed the appearance of deviational survey instrument system determined the problem of cause monitoring result distortion extremely, it is ensured that monitoring knot The closer actual geological deformation situation of fruit.
To achieve these goals, present invention employs following technical scheme:
A kind of geological deformation stereo observing system, it is characterised in that:It includes being placed in the three-dimensional positive and negative two direction inertia of underground Sensing and detecting system, and it is placed in the GNSS observation stations and information acquisition system of ground;Three-dimensional positive and negative two direction inertia sensing detection System, GNSS observation stations are connected by cable with information acquisition system respectively;Three-dimensional positive and negative two direction inertia sensing and detecting system bag Some MEMS sensors for joining end to end, being placed in along PVC straight tube axis in PVC straight tubes are included, PVC straight tubes are placed in drilling, drilling Be perfused with cement grout in PVC straight tubes and cement grout has solidified;MEMS sensor includes positive and negative double in X, Y, Z axis respectively To a pair of inertial sensors of setting;The axis of PVC straight tubes is defined as Z axis, and definition has orthogonal in the plane vertical with Z axis X-axis and Y-axis;GNSS observation stations are placed at drilling orifice and coaxial with PVC straight tubes.
The MEMS sensor includes signal processing controller, and signal processing controller connects with all inertial sensors Connect.
Described information acquisition system includes signal acquisition module, GNSS signal receiving module and dual-mode antenna, wherein:Signal Acquisition module is used for the cable connection that geological surface is stretched out with the three-dimensional positive and negative two direction inertia sensing and detecting system, GNSS signal Receiving module is connected with the GNSS observation stations, and dual-mode antenna is connected with signal acquisition module, GNSS signal receiving module.
The GNSS observation stations are also communicated wirelessly between GNSS base stations by GNSS antenna, so that the GNSS Observation station obtains the X, Y, Z axis deflection that its position is under three-dimensional system of coordinate from GNSS base stations.
Ground is provided with information management system that can be with described information acquisition system wireless telecommunications, and information management system includes logical Interrogate module, deformation analysis module, data memory module.
A kind of Embedded installation method of described geological deformation stereo observing system, it is characterised in that it includes following step Suddenly:
1) each MEMS sensor is assembled by signal wire head and the tail;
2) drilled in geologic structure to be observed;
3) the PVC straight tubes are transferred in drilling;
4) all MEMS sensors for connecting head and the tail are transferred in the PVC straight tubes, it is ensured that all described MEMS sensor forms the straight line of one and the PVC straight tubes axis coaxle;
5) the cement injection slurries into drilling and the PVC straight tubes, until cement grout fills spilling;
6) after after cement grout solidification, the GNSS observation stations are installed at drilling orifice, it is ensured that the GNSS observation stations It is coaxial with the PVC straight tubes;
7) described information acquisition system is installed on the ground;
8) cable connection that the MEMS sensor closest to geological surface is extended to ground is gathered to described information In system, and the GNSS observation stations are passed through in cable connection to described information acquisition system.
A kind of geology internal modification measuring method realized based on described geological deformation stereo observing system, its feature is existed In it comprises the following steps:
1) each MEMS sensor is as a monitoring point, and each monitoring point passes through from positive and negative pair in X, Y, Z axis X, Y, Z axis deflection is respectively obtained to three couple of setting inertial sensor;
2) using the monitoring point closest to geological surface or using the monitoring point farthest apart from geological surface as starting point, start one by one Gather the X, Y, Z axis deflection of each monitoring point;
3) the GNSS observation stations obtain the X, Y, Z axis deflection of its position as observation station from GNSS base stations;
4) observation station and all monitoring points are directed to, accumulation calculating simultaneously fits the reflection three-dimensional positive and negative two direction inertia biography Feel the X, Y, Z axis absolute deformation curve of detecting system position;
5) according to X, Y, Z axis absolute deformation curve, accumulation calculating and the reflection three-dimensional is fitted under three-dimensional system of coordinate Absolute deformation form inside the geology of positive and negative two direction inertia sensing and detecting system position.
It is an advantage of the invention that:
The present invention realizes the comprehensive monitoring to geology internal modification trend from three-dimensional view angle, and measurement accuracy is high, error is small, It can effectively prevent the indivedual monitoring points brought by geological interface factor from increasing suddenly or the steep generation for dropping anomaly, and monitoring knot Fruit is the absolute deformation amount under three-dimensional coordinate, and the practical distortion situation inside geology can be reflected truly, intuitively, exactly, from And be to check design, construction to instruct the foundation of offer science and reliable technical support.
Stereo observing system of the present invention can be applied to dam, side slope, cavern, roomy roadbed, yard to continuously distributed formula Geology internal modification monitoring occasion in terms of base.
Brief description of the drawings
Fig. 1 is the scheme of installation of existing fixed deviational survey instrument system.
Fig. 2 is the service condition explanation figure of existing fixed deviational survey instrument system.
Fig. 3 is the preferred embodiment schematic diagram of geological deformation stereo observing system of the present invention.
Fig. 4 is the composition schematic diagram of information management system.
Fig. 5 is the composition schematic diagram of GNSS base stations.
Embodiment
As shown in figure 3, geological deformation stereo observing system of the present invention is including being placed in the three-dimensional of underground (i.e. inside geology) just Anti- two direction inertia sensing and detecting system, and it is placed in the GNSS observation stations 60 and information acquisition system 30 of ground;It is three-dimensional positive and negative double It is connected respectively by cable with information acquisition system 30 to inertia sensing detecting system, GNSS observation stations 60.It is three-dimensional positive and negative two-way Inertia sensing detecting system includes some MEMS sensors for joining end to end, being placed in along the axis of PVC straight tubes 20 in PVC straight tubes 20 The straight line and the axis coaxle of PVC straight tubes 20 of each MEMS sensor 10 (being considered as monitoring point) formation of 10, i.e. head and the tail connection, PVC are straight Pipe 20 is placed in the drilling 50 got out in geologic structure to be observed, and cement grout is perfused with 50 and PVC of drilling straight tubes 20 And cement grout has solidified, wherein:MEMS sensor includes 10, and a pair of inertia of positive and negative two-way setting are passed in X, Y, Z axis respectively Sensor, that is to say, that in X-axis, a pair of detections inertial sensor in opposite direction is provided with towards X-axis positive direction and negative direction 12nd, 13, in Y-axis, Y-axis positive direction and negative direction are provided with a pair of detections inertial sensor 14,15 in opposite direction, together Sample is also equipped with a pair of detections inertial sensor 16,17 in opposite direction on Z axis towards Z axis positive direction and negative direction.Every To in inertial sensor, one measured towards axis (X, Y or Z axis) positive direction and another towards same axis (X, Y or Z axis) negative direction measures.GNSS observation stations 60 are placed at 50 apertures of drilling and coaxial with PVC straight tubes 20.Normally, PVC is straight Pipe 20 50 is coaxially disposed with drilling, thus GNSS observation stations 60 50 are equally coaxially disposed with drilling.
In the present invention, the axis (central shaft) of PVC straight tubes 20 is defined as Z axis, there is mutually definition in the plane vertical with Z axis Perpendicular X-axis and Y-axis, X, Y and Z axis together form a three-dimensional system of coordinate.
In the present invention, the axis of PVC straight tubes 20 can also can be tilted at geological surface 40, very perpendicular to geological surface 40 Extremely can be parallel to geological surface 40.
The main function of PVC straight tubes 20 is:First, it is easy to which each order of MEMS sensor 10 is transferred in PVC straight tubes 20 And remain that all MEMS sensors 10 are overall mutually to show linear state simultaneously;Second, MEMS sensor 10 is served One good protective effect.
In actual fabrication, PVC straight tubes 20 can be spliced by some PVC short tubes, and being also using the making of other materials can With, it is without limitations.
In the present invention, on the premise of interference-free between each inertial sensor, the positive and negative two-way setting in X, Y, Z axis Installation site of three pairs of inertial sensors in MEMS sensor 10 can flexible design, it is without limitations.Fig. 3 is shown in MEMS The top of sensor 10, which is installed, is respectively facing inertial sensor that X, Y, Z axis positive direction measures and at the bottom of MEMS sensor 10 Portion is installed by the situation for being respectively facing the inertial sensor that X, Y, Z axis negative direction is measured.
In actual design, MEMS sensor 10 includes signal processing controller 11, the letter of each inertial sensor 12~17 Number port is connected with the corresponding signal port of signal processing controller 11 respectively.
In actual design, information acquisition system 30 may include signal acquisition module 33, the and of GNSS signal receiving module 34 Dual-mode antenna 31, wherein:Signal acquisition module 33 is used to stretch out geological surface with three-dimensional positive and negative two direction inertia sensing and detecting system 40 cable connection, GNSS signal receiving module 34 is connected with GNSS observation stations 60, dual-mode antenna 31 and signal acquisition module 33, GNSS signal receiving module 34 is connected.Other information acquisition system 30 is additionally provided with the power module 32 for providing electric power.
Specifically, in three-dimensional positive and negative two direction inertia sensing and detecting system, signal is passed through between each MEMS sensor 10 The cable that processing controller 11 is drawn is attached, closest to the signal transacting control of that MEMS sensor 10 of geological surface 40 Device 11 processed reaches the corresponding signal port of the signal acquisition module 33 of the cable and information acquisition system 30 outside geological surface 40 Connection.
Such as Fig. 3 and Fig. 5, GNSS observation station 60 are also communicated wirelessly between GNSS base stations 80 by GNSS antenna, So that GNSS observation stations 60 (being considered as observation station) from GNSS base stations 80 obtain its position be in three-dimensional system of coordinate under X, Y, Z axis deflection, wherein, GNSS base stations 80, which are arranged on, can provide stabilization, on the geographical position of reliable reference coordinate, GNSS The 3-D walls and floor definition that the 3-D walls and floor of observation station 60 is defined with MEMS sensor 10 is consistent, i.e., GNSS observation stations 60 are determined The X, Y, Z axis of justice is identical with X, Y, Z axis defined in MEMS sensor 10.
In the present invention, such as Fig. 1, GNSS observation stations 60 include GNSS antenna 61, GNSS receiver 63 and power supply 62.As schemed 5, GNSS base stations 80 include GNSS antenna 81, GNSS receiver 83, difference radio station 82 and power supply 84.
GNSS observation stations 60 and GNSS base stations 80 belong to the existing device of this area, and how GNSS observation stations 60 are from GNSS The geographical location information that base station 80 is obtained under three-dimensional system of coordinate belongs to technology known in the art, therefore is not described in detail herein.
Such as Fig. 4, be additionally provided with the ground can be with the wireless telecommunications of information acquisition system 30 information management system 70, information management system System 70 may include communication module 71, deformation analysis module 72, data memory module 73, wherein:Communication module 71, data storage mould The signal port of block 73 is connected with the corresponding signal port of deformation analysis module 72 respectively, and communication module 71 is used for and information gathering The wireless telecommunications of dual-mode antenna 31 of system 30.
In actual design, information management system 70 may also include information reorganization module 74, chart and show and enquiry module 75th, print module 76, GNSS reorganization modules 77.
The composition of information management system 70 can be of all kinds, without limitations.
The invention also provides a kind of Embedded installation side designed for the invention described above geological deformation stereo observing system Method, comprises the following steps:
1) quantity of MEMS sensor 10 according to needed for actual observation, each MEMS sensor 10 is connected by signal wire head and the tail Connect and assemble;
2) by drill hole of drilling machine in geologic structure to be observed, aperture is advisable with can just accommodate PVC straight tubes 20, then Clean hole wall;
3) PVC straight tubes 20 are transferred in drilling 50;
4) all MEMS sensors 10 (a string of MEMS sensors) for connecting head and the tail sequentially transfer to PVC straight tubes 20 Interior, the caliber of PVC straight tubes 20 is advisable with that can just accommodate MEMS sensor 10, it is ensured that all formation of MEMS sensor 10 one With the straight line of the axis coaxle of PVC straight tubes 20;
5) by grouting equipment into drilling 50 and PVC straight tubes 20 cement injection slurries, until cement grout fills spilling;
6) after after cement grout solidification (it is generally necessary to week age), GNSS observation stations 60 are installed at 50 apertures that drill, Ensure that GNSS observation stations 60 are coaxial with PVC straight tubes 20, in other words, GNSS observation stations 60 are arranged on the aperture position of geological surface 40 Put (Fig. 3 schematically show only GNSS observation stations 60, therefore GNSS observation stations 60 are not drawn on geological surface);
7) mount message acquisition system 30 on the ground;
8) concrete protective case is made by concrete blinding, the size of guard box than information acquisition system 30 size slightly Greatly, in order to cable connections such as signal wire and power lines, by guard box by closest to the MEMS sensor 10 of geological surface 40 The cable connection of ground is extended to adopt to information by cable connection to information acquisition system 30, and by GNSS observation stations 60 On collecting system 30.
In practice of construction, then information management system 70 and GNSS base stations 80 are installed on the ground, then debug Each system, carries out the combined debugging between each system, setting observation primary data, reference data etc., in case follow-up observation is used.
When being observed using observation system of the present invention, each system power supply is opened, it is ensured that be powered normal.
The observation frequency of three-dimensional positive and negative two direction inertia sensing and detecting system, Ran Houbian are set by information management system 70 It can start working.
Three-dimensional positive and negative two direction inertia sensing and detecting system, GNSS observation stations 60 are according to the observation frequency of setting in each collection Moment carries out the detection of the shaft distortion amount of X, Y, Z tri-, and then each MEMS sensor 10, GNSS observation stations 60 transmit obtained data Via dual-mode antenna 31 send information management system 70 to information acquisition system 30, then by information acquisition system 30, finally by Information management system 70 is calculated inside geology herein to be occurred practically in each collection moment and setting time section Matter deformation, and simultaneous display goes out the results such as absolute deformation trend curve.
In actual analysis, observation system of the present invention can also arrange secondary meter, with carry out system acquisition data with it is artificial Read the comparison between data.
Based on the invention described above geological deformation stereo observing system, the invention also provides a kind of measurement of geology internal modification Method, comprises the following steps:
1) each MEMS sensor 10 is as a monitoring point, and based on forward and reverse trend function method, each monitoring point passes through certainly Three pairs of inertial sensors of positive and negative two-way setting respectively obtain the X, Y, Z axis deflection of self-position in X, Y, Z axis;
2) using the monitoring point closest to geological surface 40 or using the monitoring point farthest apart from geological surface 40 as starting point, start The X, Y, Z axis deflection of each monitoring point is gathered one by one;
3) the three-dimensional geographical location information that GNSS observation stations 60 are provided as observation station from GNSS base stations 80 obtains its institute X, Y, Z axis deflection in position, geological surface where the X, Y, Z axis deflection that GNSS observation stations 60 are obtained represents it Deformation values;
4) observation station and all monitoring points are directed to, accumulation calculating simultaneously fits the three-dimensional positive and negative two direction inertia sensing inspection of reflection The X, Y, Z axis absolute deformation curve of examining system position;
5) according to X, Y, Z axis absolute deformation curve, the accumulation calculating and to fit reflection three-dimensional positive and negative under three-dimensional system of coordinate Absolute deformation form inside the geology of two direction inertia sensing and detecting system position, so as to truly reflect in geology herein The situation that portion is subjected to displacement.
In other words, absolute deformation curve is the phase for obtaining the same collection moment based on monitoring point inside each geology That obtains is coupled to deflection and the earth's surface deflection obtained based on observation station, compared with relative deformation, this absolute change Shape amount more can directly show the geology internal modification situation of position to be observed for actual geographic orientation.
It is an advantage of the invention that:
The present invention realizes the comprehensive monitoring to geology internal modification trend from three-dimensional view angle, and measurement accuracy is high, error is small, It can effectively prevent the indivedual monitoring points brought by geological interface factor from increasing suddenly or the steep generation for dropping anomaly, and monitoring knot Fruit is the absolute deformation amount under three-dimensional coordinate, and the practical distortion situation inside geology can be reflected truly, intuitively, exactly, from And be to check design, construction to instruct the foundation of offer science and reliable technical support.
The technical principle described above for being present pre-ferred embodiments and its being used, comes for those skilled in the art Say, without departing from the spirit and scope of the present invention, any equivalent transformation based on the basis of technical solution of the present invention, Simple replacement etc. is obvious to be changed, and is belonged within the scope of the present invention.

Claims (7)

1. a kind of geological deformation stereo observing system, it is characterised in that:The three-dimensional positive and negative two direction inertia that it includes being placed in underground is passed Feel detecting system, and be placed in the GNSS observation stations and information acquisition system of ground;Three-dimensional positive and negative two direction inertia sensing detection system System, GNSS observation stations are connected by cable with information acquisition system respectively;Three-dimensional positive and negative two direction inertia sensing and detecting system includes Some MEMS sensors for joining end to end, being placed in along PVC straight tube axis in PVC straight tubes, PVC straight tubes be placed in drilling in, drilling and Cement grout is perfused with PVC straight tubes and cement grout has solidified;MEMS sensor includes positive and negative two-way in X, Y, Z axis respectively A pair of the inertial sensors set;The axis of PVC straight tubes is defined as Z axis, and definition has mutually perpendicular in the plane vertical with Z axis X-axis and Y-axis;GNSS observation stations are placed at drilling orifice and coaxial with PVC straight tubes.
2. geological deformation stereo observing system as claimed in claim 1, it is characterised in that:
The MEMS sensor includes signal processing controller, and signal processing controller is connected with all inertial sensors.
3. geological deformation stereo observing system as claimed in claim 1, it is characterised in that:
Described information acquisition system includes signal acquisition module, GNSS signal receiving module and dual-mode antenna, wherein:Signal acquisition Module is used for the cable connection that geological surface is stretched out with the three-dimensional positive and negative two direction inertia sensing and detecting system, and GNSS signal is received Module is connected with the GNSS observation stations, and dual-mode antenna is connected with signal acquisition module, GNSS signal receiving module.
4. geological deformation stereo observing system as claimed in claim 1, it is characterised in that:
The GNSS observation stations are also communicated wirelessly between GNSS base stations by GNSS antenna, so that the GNSS is observed Stand and obtain the X, Y, Z axis deflection that its position is under three-dimensional system of coordinate from GNSS base stations.
5. the geological deformation stereo observing system as any one of Claims 1-4, it is characterised in that:
Ground is provided with information management system that can be with described information acquisition system wireless telecommunications, and information management system is including communicating mould Block, deformation analysis module, data memory module.
6. a kind of Embedded installation method of the geological deformation stereo observing system any one of claim 1 to 5, its feature It is, it comprises the following steps:
1) each MEMS sensor is assembled by signal wire head and the tail;
2) drilled in geologic structure to be observed;
3) the PVC straight tubes are transferred in drilling;
4) all MEMS sensors for connecting head and the tail are transferred in the PVC straight tubes, it is ensured that all MEMS are passed Sensor forms the straight line of one and the PVC straight tubes axis coaxle;
5) the cement injection slurries into drilling and the PVC straight tubes, until cement grout fills spilling;
6) after after cement grout solidification, the GNSS observation stations are installed at drilling orifice, it is ensured that the GNSS observation stations and institute State PVC straight tubes coaxial;
7) described information acquisition system is installed on the ground;
8) MEMS sensor closest to geological surface is extended to the cable connection of ground to described information acquisition system On, and the GNSS observation stations are passed through in cable connection to described information acquisition system.
7. become inside the geology that a kind of geological deformation stereo observing system based on any one of claim 1 to 5 is realized Shape measuring method, it is characterised in that it comprises the following steps:
1) each MEMS sensor is as a monitoring point, and each monitoring point from positive and negative in X, Y, Z axis by two-way setting The three couples inertial sensor put respectively obtains X, Y, Z axis deflection;
2) using the monitoring point closest to geological surface or using the monitoring point farthest apart from geological surface as starting point, start to gather one by one The X, Y, Z axis deflection of each monitoring point;
3) the GNSS observation stations obtain the X, Y, Z axis deflection of its position as observation station from GNSS base stations;
4) observation station and all monitoring points are directed to, accumulation calculating simultaneously fits the reflection three-dimensional positive and negative two direction inertia sensing inspection The X, Y, Z axis absolute deformation curve of examining system position;
5) according to X, Y, Z axis absolute deformation curve, the accumulation calculating and to fit the reflection three-dimensional positive and negative under three-dimensional system of coordinate Absolute deformation form inside the geology of two direction inertia sensing and detecting system position.
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