CN206862331U - Geology internal displacement three-dimension monitor system - Google Patents

Geology internal displacement three-dimension monitor system Download PDF

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Publication number
CN206862331U
CN206862331U CN201720580571.6U CN201720580571U CN206862331U CN 206862331 U CN206862331 U CN 206862331U CN 201720580571 U CN201720580571 U CN 201720580571U CN 206862331 U CN206862331 U CN 206862331U
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axis
negative
positive
detecting
pvc straight
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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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Abstract

The utility model discloses a kind of geology internal displacement three-dimension monitor system, including the three-dimensional positive and negative two direction inertia sensing and detecting system for being placed in underground and the information acquisition system for being placed in ground;Three-dimensional positive and negative two direction inertia sensing and detecting system is connected by cable with information acquisition system;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, is 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.Indivedual monitoring points that the utility model solves the problems, such as to have fixed the appearance of deviational survey instrument system cause monitoring result distortion extremely, it is ensured that monitoring result is closer to actual geological deformation situation.

Description

Geology internal displacement three-dimension monitor system
Technical field
A kind of geology internal displacement three-dimension monitor system is the utility model is related to, belongs to the geological deformation monitoring of Geotechnical Engineering Field.
Background technology
The deformation monitoring of Geotechnical Engineering includes surface displacement observation and internal displacement observation.Deformation monitoring is mainly observation water Prosposition moves and vertical displacement, grasps changing rule, and research has free from flaw, landslide, the trend slided and toppled.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, the dam in such as hydraulic engineering for being related to control deformation, cavern, side slope, highway With the roadbed of railway, and Civil Aviation Airport ground etc., 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 has turned into the development of this area Trend, but it has only been applied in terms of Geotechnical Engineering side slope at this stage.Referring to shown in Fig. 1 and Fig. 2, normally, some installations 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 at the place of ending 92 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 Larger difference be present with geology practical distortion in the deformation tendency line 101 that fixed inclinometer 91 obtains.Second, above-mentioned fixed inclinometer System is only capable of realizing two-dimentional deformation observation, and measurement accuracy is relatively low, systematic error be present, and error amount can be with deformation accumulation calculating Process is constantly cumulative, so as to cause final result distortion phenomenon occur.
Utility model content
The purpose of this utility model is to provide a kind of geology internal displacement three-dimension monitor system, this three-dimension monitor Solutions of Systems Determine and fixed the problem of indivedual monitoring points that deviational survey instrument system occurs cause monitoring result distortion extremely, it is ensured that monitoring knot Fruit is closer to actual geological deformation situation.
To achieve these goals, the utility model employs following technical scheme:
A kind of geology internal displacement three-dimension monitor system, it is characterised in that:It includes being placed in the three-dimensional positive and negative two-way of underground Inertia sensing detecting system and the information acquisition system for being placed in ground;Three-dimensional positive and negative two direction inertia sensing and detecting system passes through cable It is connected with information acquisition system;Three-dimensional positive and negative two direction inertia sensing and detecting system includes joining end to end, being placed in along PVC straight tube axis Some MEMS sensors in PVC straight tubes, PVC straight tubes are placed in drilling, and cement grout and water are perfused with drilling and PVC straight tubes Slurry liquid has solidified, wherein:MEMS sensor includes a pair of inertial sensors of the positive and negative two-way setting in X, Y, Z axis respectively; The axis of PVC straight tubes is defined as Z axis, and being defined in the plane vertical with Z axis has mutually perpendicular X-axis and Y-axis.
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, power module and dual-mode antenna, wherein:Signal acquisition module The cable connection of geological surface, power module, transmitting-receiving day are stretched out for two direction inertia sensing and detecting system positive and negative with the three-dimensional Line is connected with signal acquisition module, and power module provides electric power.
Being provided with the ground can be with the information management system of described information acquisition system wireless telecommunications.
Described information management system includes communication module, deformation analysis module, data memory module.
The utility model has the advantages that:
The utility model realizes the comprehensive monitoring to geology internal modification trend from three-dimensional view angle, and measurement accuracy is high, misses Difference is small, can effectively prevent because indivedual monitoring points caused by geological interface factor increase suddenly or the generation of steep drop anomaly, can Truly, the practical distortion situation inside geology is reflected intuitively, exactly, so as to which to check design, offer science is instructed in construction Foundation and reliable technical support.
The utility model three-dimension monitor system can be applied to continuously distributed formula dam, side slope, cavern, roomy roadbed, stand The geology internal modification monitoring occasion of Slag etc..
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 the utility model geology internal displacement three-dimension monitor system.
Fig. 4 is the implementation explanation figure of the utility model geology internal displacement three-dimension monitor system.
Embodiment
As shown in figure 3, the utility model geology internal displacement three-dimension monitor system includes being placed in underground (i.e. inside geology) Three-dimensional positive and negative two direction inertia sensing and detecting system and be placed in the information acquisition system 30 of ground;Three-dimensional positive and negative two direction inertia sensing Detecting system is connected by cable with information acquisition system 30;Three-dimensional positive and negative two direction inertia sensing and detecting system includes passing through signal Some MEMS sensors 10 that line joins end to end, is placed in along the axis of PVC straight tubes 20 in PVC straight tubes 20, i.e., head and the tail connection is each The straight line that MEMS sensor 10 (being considered as monitoring point) is formed and the axis coaxle of PVC straight tubes 20, PVC straight tubes 20 are placed to be monitored In the drilling 50 drilled out in geologic structure, it is perfused with cement grout in 50 and PVC of drilling straight tubes 20 and cement grout has solidified, its In:MEMS sensor 10 includes a pair of inertial sensors of the positive and negative two-way setting in X, Y, Z axis respectively, that is to say, that in X-axis On, X-axis positive direction and negative direction are provided with a pair of detections inertial sensor 12,13 in opposite direction, in Y-axis, towards Y Axle positive direction and negative direction are provided with a pair of detections inertial sensor 14,15 in opposite direction, equally on Z axis, towards Z axis just Direction and negative direction are also equipped with a pair of detections inertial sensor 16,17 in opposite direction.In each pair inertial sensor, one Towards axis (X, Y or Z axis), positive direction is measured and another is measured towards same axis (X, Y or Z axis) negative direction.
In the utility model, the axis (central shaft) of PVC straight tubes 20 is defined as Z axis, is defined in the plane vertical with Z axis There are mutually perpendicular X-axis and Y-axis, X, Y and Z axis together form a three-dimensional system of coordinate.
In the utility model, the axis of PVC straight tubes 20 can also can be tilted at geological surface perpendicular to geological surface 40 40, or even can be parallel to geological surface 40.
The main function of PVC straight tubes 20 is:First, it is easy to each order of MEMS sensor 10 and transfers in PVC straight tubes 20 And the mutual entirety of all MEMS sensors 10 is remain simultaneously and shows linear state;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.
It is positive and negative two-way in X, Y, Z axis on the premise of interference-free between each inertial sensor in the utility model Installation site of three pairs of inertial sensors in MEMS sensor 10 set can flexible design, it is without limitations.Fig. 3 is shown The installation of the top of MEMS sensor 10 is respectively facing the inertial sensor that X, Y, Z axis positive direction measures and in MEMS sensor 10 bottoms are installed by the situation for being respectively facing the inertial sensor that X, Y, Z axis negative direction measures.
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 (the alternatively referred to as micro electronmechanical collection mould of signal acquisition module 33 Block), power module 32 and dual-mode antenna 31, wherein:Signal acquisition module 33 is used for and three-dimensional positive and negative two direction inertia sensing detection System stretch out geological surface 40 cable connection, power module 32, dual-mode antenna 31 signal port respectively with signal acquisition mould The corresponding signal port connection of block 33, power module 32 provide 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, being additionally provided with the ground can be with the information management system 70 of the wireless telecommunications of information acquisition system 30.
Furthermore, it is understood that information management system 70 may include communication module 71, deformation analysis module 72, data memory module 73, wherein:The signal port corresponding signal port with deformation analysis module 72 respectively of communication module 71, data memory module 73 Connection, communication module 71 are used for the wireless telecommunications of dual-mode antenna 31 with information acquisition system 30.
In actual design, information management system 70 may also include information reorganization module 74, chart is shown and enquiry module 75th, print module 76.The composition of information management system 70 can be of all kinds, without limitations.
The Embedded installation method of the utility model geology internal displacement three-dimension monitor system comprises the following steps:
1) quantity of MEMS sensor 10 according to needed for actual monitoring, each MEMS sensor 10 is connected by signal wire head and the tail Connect and assemble;
2) it is advisable in geologic structure to be monitored by drill hole of drilling machine, aperture with can just accommodate PVC straight tubes 20, generally PVC straight tubes 20 and 50 coaxial designs of drilling, then clean hole wall;
3) PVC straight tubes 20 are transferred in drilling 50;
4) order of a string of MEMS sensors 10 connected from beginning to end is transferred in PVC straight tubes 20, the caliber of PVC straight tubes 20 It is advisable so that MEMS sensor 10 can just be accommodated, it is ensured that all formation of MEMS sensors 10 one are same with the axis of PVC straight tubes 20 The straight line of axle;
5) by grouting equipment into drilling 50 and PVC straight tubes 20 cement injection slurries, until cement grout fills spilling;
6) after cement grout solidifies (it is generally necessary to week age), mount message acquisition system 30 on the ground;
7) 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 information acquisition system 30.
In practice of construction, then information management system 70 is installed on the ground, then debug each system, carry out each system Between combined debugging, setting monitoring primary data etc., in case follow-up monitoring uses.
When being monitored using the utility model monitoring system, each system power supply is opened, it is ensured that be powered normal.
The Monitoring 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 carries out X, Y, Z according to the Monitoring frequency of setting at each collection moment The detection of three shaft distortion amounts, then each MEMS sensor 10 will detect obtained data and send information acquisition system 30 to, then by Information acquisition system 30 sends information management system 70 to via dual-mode antenna 31, is finally calculated by information management system 70 Each collection moment and the interior actual geological deformation situation occurred of setting time section inside geology herein, and simultaneous display goes out The data such as deformation tendency curve.
In actual analysis, the utility model monitoring system can also arrange secondary meter, with carry out system acquisition data with The artificial comparison read between data.
The geology internal displacement measuring method that the utility model geology internal displacement three-dimension monitor system is implemented includes as follows Step:
1) each MEMS sensor 10 is used as a monitoring point, based on forward and reverse trend function method, each monitoring point by 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) closest to the monitoring point of geological surface 40 or using the monitoring point farthest apart from geological surface 40 as starting point, to start The X, Y, Z axis deflection of each monitoring point is gathered one by one, then simultaneously fits reflection three-dimensional just for all monitoring points, accumulation calculating The X, Y, Z axis deformation curve of anti-two direction inertia sensing and detecting system position;
3) according to X, Y, Z axis deformation curve, the accumulation calculating and to fit reflection three-dimensional positive and negative two-way under three-dimensional system of coordinate Relative deformation form inside the geology of inertia sensing detecting system position, sent out so as to truly reflect inside geology herein The situation of raw displacement.
Such as Fig. 4, the X-axis deformation curve 81, Y-axis deformation curve 82 and the Z axis that show accumulation calculating in figure and fit Deformation curve 83, as requested, this three curves are integrated into 3 D stereo deformation form under three-dimensional system of coordinate, you can to prison The geology internal displacement situation of geodetic point is made directly perceived, true, comprehensive 3 D stereo and shown.
The utility model has the advantages that:
The utility model realizes the comprehensive monitoring to geology internal modification trend from three-dimensional view angle, and measurement accuracy is high, misses Difference is small, can effectively prevent because indivedual monitoring points caused by geological interface factor increase suddenly or the generation of steep drop anomaly, can Truly, the practical distortion situation inside geology is reflected intuitively, exactly, so as to which to check design, offer science is instructed in construction Foundation and reliable technical support.
The technical principle described above for being the utility model preferred embodiment and its being used, for those skilled in the art It is any based on technical solutions of the utility model basis in the case of without departing substantially from spirit and scope of the present utility model for member On equivalent transformation, it is simple replace etc. it is obvious change, belong within scope of protection of the utility model.

Claims (5)

  1. A kind of 1. geology internal displacement three-dimension monitor system, it is characterised in that:It includes being placed in the three-dimensional positive and negative two-way used of underground Property sensing and detecting system and be placed in the information acquisition system of ground;Three-dimensional positive and negative two direction inertia sensing and detecting system by cable with Information acquisition system is connected;Three-dimensional positive and negative two direction inertia sensing and detecting system includes joining end to end, being placed in along PVC straight tube axis Some MEMS sensors in PVC straight tubes, PVC straight tubes are placed in drilling, and cement grout and water are perfused with drilling and PVC straight tubes Slurry liquid has solidified, wherein:MEMS sensor includes a pair of inertial sensors of the positive and negative two-way setting in X, Y, Z axis respectively; The axis of PVC straight tubes is defined as Z axis, and being defined in the plane vertical with Z axis has mutually perpendicular X-axis and Y-axis.
  2. 2. geology internal displacement three-dimension monitor 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. 3. geology internal displacement three-dimension monitor system as claimed in claim 1, it is characterised in that:
    Described information acquisition system includes signal acquisition module, power module and dual-mode antenna, wherein:Signal acquisition module is used for Positive and negative with three-dimensional two direction inertia sensing and detecting system stretches out the cable connection of geological surface, power module, dual-mode antenna with Signal acquisition module connects, and power module provides electric power.
  4. 4. the geology internal displacement three-dimension monitor system as described in claim 1 or 2 or 3, it is characterised in that:
    Being provided with the ground can be with the information management system of described information acquisition system wireless telecommunications.
  5. 5. geology internal displacement three-dimension monitor system as claimed in claim 4, it is characterised in that:
    Described information management system includes communication module, deformation analysis module, data memory module.
CN201720580571.6U 2017-05-23 2017-05-23 Geology internal displacement three-dimension monitor system Active CN206862331U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108709535A (en) * 2018-07-19 2018-10-26 中铁隧道局集团有限公司 Tunnel deformation monitoring method based on inertia measurement principle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108709535A (en) * 2018-07-19 2018-10-26 中铁隧道局集团有限公司 Tunnel deformation monitoring method based on inertia measurement principle

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