CN106154310A - A kind of Portable city geologic anomaly seismic acquisition system and method - Google Patents
A kind of Portable city geologic anomaly seismic acquisition system and method Download PDFInfo
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- CN106154310A CN106154310A CN201610687306.8A CN201610687306A CN106154310A CN 106154310 A CN106154310 A CN 106154310A CN 201610687306 A CN201610687306 A CN 201610687306A CN 106154310 A CN106154310 A CN 106154310A
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- 238000001514 detection method Methods 0.000 claims abstract description 49
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- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 claims description 10
- 238000011835 investigation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000013480 data collection Methods 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000009659 non-destructive testing Methods 0.000 abstract description 3
- 230000005856 abnormality Effects 0.000 abstract description 2
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- 238000001465 metallisation Methods 0.000 description 2
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Classifications
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- G01V1/01—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
- G01V1/184—Multi-component geophones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
Abstract
The present invention relates to Portable city geologic anomaly seismic acquisition system and method, this system includes that seismic signal receives device, it uses the linear movably sensor-level connected and composed by multi link shock insulation support by several roller type seismic sensors conjuncted, the roller bearing of roller type seismic sensor arranges detector core body, being respectively mounted wireless seismic acquistion base station and external trigger device on multi link shock insulation support, seismic source apparatus is arranged on the side of multi link shock insulation support；Described seismic source apparatus is connected with external trigger device, and described wireless seismic acquistion base station is connected with detector core body, external trigger device respectively.The abnormality detection that the present invention is applicable within Urban Underground 50 meters diagnoses with geology.Owing to detector core body is fixed on roller shaft portion, in the case of ensureing deadweight coupling, achieve Non-Destructive Testing, be really different from traditional geophone arrangement, improve work efficiency.
Description
Technical field
The present invention relates to seismic exploration technique field, especially a kind of Portable city geologic anomaly seismic acquisition system and
Its detection method.
Background technology
Urban underground space is constructed, and causes ground disturbance and soil erosion, causes urban ground to subside and underground engineering is damaged
Wound, particularly 50 meters of earth's surface are more and more important with shallow anomalous body detection.Empty to the underground causing road surface subsidence both at home and abroad
Hole, leakiness band, the means of detection come to nothing etc. are mainly engineering drilling and geophysical exploration two class technology.
Probing is the most frequently used means, it is possible to the underground medium situation of direct reaction local, but the drilling operation cycle is long, effect
Rate is low, underground utilities damages cold danger, drills as " a peephole view ", it is difficult to underground medium is carried out continuous whole description,
Laterally differentiating of subsurface anomaly there is is limitation, and is limited by construction operation region.
At present, in the detection of subsurface anomaly body, conventional physical prospecting means have GPR and seismic prospecting, GPR method master
To propagate in media as well based on frequency electromagnetic waves and reflection characteristic on electrical abrupt interface, carry out a kind of thing of lossless detection
Spy method, GPR resolution is high, efficiency is high；Owing to aquifer water-bearing stratum is strong to electro-magnetic wave absorption effect, it is difficult to detection phreatic surface
Under formation variation, investigation depth is confined to more than phreatic surface.Seismic prospecting is to utilize underground medium elastic and the difference of density,
By observation with analyze the seismic wave propagation law in underground that artificial earthquake produces, infer the character of subterranean strata and form
Geophysical exploration method, mainly utilizes and has natural impedance difference between difference interface, underground.Traditional reflection shooting side
Method has the disadvantage that (1) actual detection mostly is artificial excitation when constructing and receives observation mode, requires higher at detection accuracy
Time, need to increase the distribution density of survey line, to increase the degree of covering to underground objective body, cause quantities to increase, construction effect
Rate is relatively low；(2) it mostly is Colophonium or concrete road surface due to urban road ground, causes geophone coupling poor, data acquisition matter
Measure the highest；(3) explosive source is affected relatively big by surface state, and artificial hammer force is uneven, causes Effect on Detecting not good enough；
Summary of the invention
The primary and foremost purpose of the present invention be to provide a kind of 50 meters within investigation depth, resolution is high and can improve work efficiency
Portable city geologic anomaly seismic acquisition system.
For achieving the above object, present invention employs techniques below scheme: the geologic anomaly earthquake of a kind of Portable city is visited
Examining system, receives device, wireless seismic acquistion base station, external trigger device, hand-held Pad terminal, focus dress including seismic signal
Putting and data acquisition control and process software, described seismic signal receives device and uses by several roller type seismic sensors
Constitute the linear movably sensor-level connected and composed by multi link support conjuncted, the rolling of described roller type seismic sensor
Arranging detector core body in axle, roller type seismic sensor is arranged on the lower section of multi link support, and multi link support is pacified respectively
Dress wireless seismic acquistion base station and external trigger device, seismic source apparatus is arranged in the middle part of the side of multi link support, is formed and linearly may be used
Excite in the middle of mobile and bilateral accept seismic observation system；Described seismic source apparatus is connected by wire with external trigger device, described nothing
Line earthquake-capturing base station is connected with detector core body, external trigger device respectively, and WiFi antenna is passed through in wireless seismic acquistion base station
With hand-held Pad terminal called, loading data acquisition controlling and process software in described hand-held Pad terminal.
Described roller type seismic sensor is made up of with roller bearing roller, is lubricated by butter, on roller bearing between roller and roller bearing
1～3 detector core body is installed, when roller type seismic sensor installs a detector core body, dividing of this detector core body
Amount is vertical component or horizontal component；When roller type seismic sensor installs two detector core bodies, two detector core bodies
It is two horizontal components, or is one vertical component of a horizontal component；When roller type seismic sensor installs three detections
During device core body, orthogonal two horizontal components (SH, SV) on a vertical component (P) and horizontal plane；It is easy to accept by indulging
The scattering compressional wave (P-P) coming this underground that ripple focus causes and carry out the converted shear wave (P-SH, P-SV) of this underground；Roller type senses
Device quality is not less than 1.5Kg, reaches the requirement on deadweight coupling ground；
The plurality of detector core body is connected by the air plug head sensor interface corresponding with wireless seismic acquistion base station, described outside
The triggering interface that the air plug head of triggering device is corresponding with wireless seismic acquistion base station is connected；Described wireless seismic acquistion base station includes
Wireless seismic base station body and WiFi antenna, WiFi antenna is installed on the top of earthquake base station body, wireless seismic base station body
Being arranged on the support of base station, base station support is arranged on multi link support.
Described detector core body is simple component, and the sensitive direction of detector core body is vertical direction, and detector core body leads to
Cross roller deadweight and the ground coupling；The seismic source apparatus longitudinal direction earthquake-wave-exciting matched, and passed by described roller type earthquake
Sensor gathers seismic signal, after described wireless seismic base station gathers seismic signal, is transmitted to hand-held Pad terminal by WiFi
And data handling system.
When described detector core body is simple component or double component, the sensitive direction of detector core body is horizontal direction, inspection
Ripple device core body and outside wheel trolley are by deadweight and the ground coupling；The horizontal earthquake-wave-exciting of seismic source apparatus matched, and pass through
Described roller type seismic sensor gathers seismic signal, after described wireless seismic base station gathers seismic signal, is passed by WiFi
Transport to hand-held Pad terminal and data handling system.
Described detector core body is multi-components, and detector core body comprises the component of 3 sensitive direction, wherein, component one
H1 be level along line direction, component two H2 is for being horizontally and perpendicularly to line direction, and component three V is vertical direction, line direction
For the bearing of trend of detector core body line, whole system moves detection with fixing moving step pitch along line direction.Described roller
Formula seismic sensor includes detector core body, end seat support, wheel trolley, damping screw, roller bearing, bolt and spring washer, and described wheel trolley is
External metallization roller, is perpendicular to ground and places；Described roller bearing is positioned at the center of described wheel trolley, and described detector core body is positioned at
In described roller bearing；Described end seat support is installed on the both sides of roller by described bolt and spring washer；Described damping screw is installed on
The top of end seat support；The wheel trolley of roller type seismic sensor is fixed on multi link by outer end seat support and damping screw and props up
On frame.
The number of described roller type seismic sensor is 2～16, the spacing between two adjacent roller type seismic sensors
It it is 0.2～2 meter.
Described multi link support is multi link shock insulation support.
Another object of the present invention is to provide the detection method of a kind of Portable city geologic anomaly seismic acquisition system,
The method includes the enforcement step of following order:
(1) according to the requirement of detection accuracy, detection system is set, i.e. determines roller type seismic sensors in earthquake signal receiving device
Device, the relative position relation of seismic source apparatus, determine the step pitch of every time movement, determines the spacing of roller type seismic sensor and individual
Number, and seismic signal is received device, wireless seismic acquistion base station, external trigger device, hand-held Pad terminal and seismic source apparatus exist
Assembling is portable detection system；
(2) detection system is placed in the original position of search coverage survey line, utilizes hand-held Pad to connect wireless seismic acquistion base
Stand, carry out parameter setting and data transmission in the wireless mode, need to carry out examination before formally starting and trigger, gather what first time excited
Seismic signal, receives seismic waveform, the real-time judge quality of data, if geological data first arrival is obvious, significant wave is clear and legible, then
Carry out data acquisition according to parameter current, otherwise need to delete current data, re-start earthquake data acquisition；
(3) moving step pitch is determined according to the detection system in step (1), after i.e. seismic source apparatus excites end every time, whole detection
The distance that system moves along survey line, and carry out data acquisition, and Real-time Monitoring Data quality according to step (2), until whole piece is surveyed
The data collection task of line completes；
(4) by data handling system, analyze geological data, carry out face ripple, shear wave, compressional wave, echo according to detection mode, dissipate
Ejected wave and refracted wave data prediction, superposition etc. process, it is thus achieved that the seismic profile that investigation depth is relatively big, resolution is higher；
(5) combine borehole data and the geologic information layer position information of search coverage, seismic profile is carried out high-resolution information solution
Release, delimit the scope of exceptions area, and form detection diagnosis report.
As shown from the above technical solution, the present invention uses roller type seismic sensor, each roller type seismic sensor can install 1
To 3 detector core bodies, it is conjuncted that roller type seismic sensor is connected as sensor-level by removable component, it is achieved wire detects,
Safeguard work efficiency, detector core body is fixed on roller shaft portion by roller type seismic sensor, in the situation ensureing deadweight coupling
Under achieve Non-Destructive Testing, be really different from traditional geophone arrangement, improve work efficiency；The roller being cascaded
Formula seismic sensor spacing is adjustable, and number can be expanded, and can meet the superposition condition of different degree of covering, and detection accuracy is high；Rolling
Wheeled seismic sensor sensitive direction scalable, according to longitudinal direction and transverse combination mode, can carry out multi-component earthquake data
Gather, process and explain；Seismic source apparatus can excite shear wave or compressional wave signal, in conjunction with multi-components prolongable roller type seismic sensors
Device, can carry out the seismic prospecting of multi-wave and multi-component, such as longitudinal wave exploration, shear wave exploration and Surface wave prospecting；Whole system each several part is
Detachable, portable, can Quick-moving type, in the case of ensureing investigation depth and precision, substantially increase work efficiency,
High accuracy URBAN EARTHQUAKE exploration fast and efficiently can be realized.The detection method of the present invention, within being applicable to Urban Underground 50 meters
Abnormality detection diagnoses with geology.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is the structural representation of the embodiment of the present invention three；
Fig. 4 is the structural representation of the embodiment of the present invention four；
Fig. 5 is the structural representation of the embodiment of the present invention five；
Fig. 6 is the structural representation of the embodiment of the present invention six；
Fig. 7 is the result of detection figure of the embodiment of the present invention six；
Fig. 8 is the structural representation of the roller type seismic sensor in the present invention.
In figure: 1, roller type seismic sensor, 2, detector core body, 3, wireless seismic base station body, 4, WiFi antenna, 5,
Base station support, 6, external trigger device, 7, seismic source apparatus support, 8, pulley, 9, compressional wave excite weight, 10, base, 11, multi link
Support, 12, hand-held Pad terminal, 13, seismic source apparatus connecting rod, 14, shear-wave generation weight, 15, end seat support, 16, wheel trolley,
17, damping screw, 18, roller bearing, 19, bolt.
Detailed description of the invention
As shown in Fig. 1,2,3,4,5,6, a kind of Portable city geologic anomaly seismic acquisition system, connect including seismic signal
Receiving apparatus, wireless seismic acquistion base station, external trigger device 6, hand-held Pad terminal 12, seismic source apparatus and data handling system,
Described seismic signal is received device and uses multiple roller type seismic sensor 1 linearly may be used by what multi link support 11 connected and composed
The sensor-level of movement is conjuncted, the centrally disposed detector core body 2 of roller type seismic sensor 1, and roller type seismic sensor 1 is pacified
It is contained in the lower section of multi link support 11, multi link support 11 is respectively mounted wireless seismic acquistion base station and external trigger device 6, shake
Source apparatus is arranged on the side of multi link support 11；Multi link support uses multi link shock insulation support.Described seismic source apparatus is with outer
Triggering device 6 to be connected, described wireless seismic acquistion base station is connected with detector core body 2, external trigger device 6 respectively, wireless
Earthquake-capturing base station is by WiFi antenna 4 and hand-held Pad terminal 12 communication, loading data in described hand-held Pad terminal 12
Processing system.Seismic source apparatus can excite secondary wave or compressional wave signal, can realize constant energy and excite, it is possible to uses common weight
Hammer.Detector core body 2 is connected by the sensor interface that air plug head is corresponding with wireless seismic acquistion base station, described external trigger device
The triggering interface that the air plug head of 6 is corresponding with wireless seismic acquistion base station is connected；Described wireless seismic acquistion base station includes wirelessly
Shake base station body 3 and WiFi antenna 4, WiFi antenna 4 is installed on the top of earthquake base station body, and wireless seismic base station body 3 is pacified
Being contained on base station support 5, base station support 5 is arranged on multi link support 11.
Sensor-level is conjuncted to be made up of multiple roller type seismic sensors 1, on each roller type seismic sensor install 1～
3 detector core bodies 2, when roller type seismic sensor installs a detector core body 2, the component of this detector core body 2 is
Vertical component or horizontal component；When roller type seismic sensor installs two detector core bodies 2, two detector core bodies 2 are
Two horizontal components, or be one vertical component of a horizontal component；When roller type seismic sensor installs three cymoscopes
During core body 2, three detector core bodies 2 are orthogonal two horizontal components on horizontal plane, add a vertical component.Roller
The number of formula seismic sensor 1 is 2～16, and the spacing between two adjacent roller type seismic sensors is 0.2～2 meter.
Embodiment one
As it is shown in figure 1, the detector core body 2 in roller type seismic sensor 1 is simple component, the sensitivity side of detector core body 2
To for being perpendicular to direction, ground, roller type seismic sensor 1 is by deadweight and the ground coupling；Seismic source apparatus includes base 10, shake
Source apparatus support 7, pulley 8 and for exciting the compressional wave of compressional wave seismic signals to excite weight 9, described seismic source apparatus support 7 to install
On base 10, piezoelectric transducer is placed on the ground and be internally provided with to base 10, and the positive and negative two ends of piezoelectric transducer are respectively
Being connected with the positive and negative terminal binding post on external trigger device 6, pulley 8 is installed in the upper end of seismic source apparatus support 7, and pulley 8 is by lead-in wire
Excite weight 9 to be connected with compressional wave, compressional wave excites weight 9 be perpendicular to ground configuration and be positioned at the top of base 10.Seismic source apparatus is indulged
To earthquake-wave-exciting, and gather seismic signal by described roller type seismic sensor, through described wireless seismic base station locality
After shake signal, transmitted to hand-held Pad terminal and data handling system by WiFi.
Embodiment two
As in figure 2 it is shown, the detector core body 2 in described roller type seismic sensor 1 is simple component, detector core body 2 sensitive
Degree direction is horizontal direction, and roller type seismic sensor 1 is by deadweight and the ground coupling；Seismic source apparatus includes base 10, focus
Appliance stand 7, seismic source apparatus connecting rod 13 and for exciting the shear-wave generation weight 14 of shear wave earthquake signal, described seismic source apparatus
Support 7 is arranged on base 10, and piezoelectric transducer is placed on the ground and be internally provided with to base 10, seismic source apparatus support 7
Seismic source apparatus connecting rod 13 is installed in upper end, has angle and angle to be less than between seismic source apparatus support 7 and seismic source apparatus connecting rod 13
90 degree, the other end of seismic source apparatus connecting rod 13 installs shear-wave generation weight 14, and shear-wave generation weight 14 is parallel to ground configuration
And it is positioned at the side of base 10.The horizontal earthquake-wave-exciting of seismic source apparatus, and gather earthquake by described roller type seismic sensor
Signal, after described wireless seismic base station gathers seismic signal, processes system by WiFi transmission to hand-held Pad terminal and data
System.
Visible, with the difference of embodiment one, embodiment two is that seismic source apparatus is to excite secondary wave from horizontal direction, with
Time seismic signal to receive the sensitive direction of detector core body 2 of device be horizontal direction, be more beneficial for receiving secondary wave letter
Number, this embodiment is shear wave detection method.
Embodiment three
As it is shown on figure 3, the number of roller type seismic sensor 1 is 8.The present embodiment is ground with the difference of embodiment one
Roller type seismic sensor 1 compound mode of shake signal receiving device is different, and the number of detector core body 2 can use 1,2 or 3
Individual, when roller type seismic sensor installs a detector core body, the component of this detector core body is vertical component or level
Component；When roller type seismic sensor installs two detector core bodies, two detector core bodies are two horizontal components, or
It it is one vertical component of a horizontal component；When roller type seismic sensor installs three detector core bodies, three cymoscopes
Core body is orthogonal two horizontal components on horizontal plane, adds a component being perpendicular to horizontal plane.Seismic signal receives
Device is that the sensor-level that 8 roller type seismic sensors 1 are consisted of multi link support 11 cascade is conjuncted, and roller type earthquake passes
Spacing between sensor 1 is 0.2-2m；Seismic source apparatus can select vertical according to transducer sensitivity direction or laterally excite earthquake
Ripple, in this embodiment, transducer sensitivity is vertical mode, and focus is for longitudinally exciting weight.
Embodiment four
As shown in Figure 4, the spacing between described tandem type roller type seismic sensor 1 is 1m.The present embodiment and embodiment one
Difference is that seismic signal receives the spacing difference of the roller type seismic sensor 1 of device, and 4 transducer spacings are expansible
For 1m, seismic source apparatus can select vertical or horizontal earthquake-wave-exciting, sensor in this embodiment according to transducer sensitivity direction
Sensitivity is vertical direction, and focus is for longitudinally exciting weight.
Embodiment five
As it is shown in figure 5, described detector core body 2 is multi-components, detector core body 2 comprises the component of 3 sensitive direction, its
In, component one H1 be level along line direction, component two H2 is for being horizontally and perpendicularly to line direction, and component three V is for being perpendicular to water
Square to, line direction is the bearing of trend of detector core body line, whole system with fixing moving step pitch prolong line direction move
Dynamic detection.Visible, with the difference of embodiment one, the present embodiment is that seismic signal receives the roller type seismic sensors of device
Device 1 core body is multi-components feature.In 4 roller type seismic sensors 1, each core body including that 3 sensitive direction are different, point
Measure a H1 be level along line direction, component two H2 is for being horizontally and perpendicularly to line direction, and component three V is for being perpendicular to level side
To, multi-wave and multi-component seismic exploration subtly can be realized.
Embodiment six
As shown in Figure 6, detector core body 2 is simple component, and the sensitive direction of detector core body 2 is vertical direction, cymoscope core
Body 2 and outside wheel trolley 16 are by deadweight and the ground coupling, and detector core body 2 number is 16, and spacing is 0.5m；Seismic source apparatus is adopted
With p-wave source, shot point position is each roller type seismic sensor line center, excites spacing 0.5m, then sensor arrangement
In the range of excite 15 big guns altogether, for ensure scattering seismic survey spread length, then behind home sensor front and end sensor
Side is each increases by 1 big gun, then, when using this 16 road system to detect, excite 17 big guns altogether, and after having excited, whole system is with 0.5m's
Step pitch moves integrally along survey line.Data are treated obtains scattering offset seismic profile, as it is shown in fig. 7, figure median surface one is road
Miscellaneous fill and undisturbed soil demarcation line below face, interface two is interface, subway tunnel top, and investigation depth is up to 20m.
As shown in Figure 8, roller type seismic sensor includes detector core body 2, end seat support 15, wheel trolley 16, damping screw
17, roller bearing 18, bolt 19 and spring washer；Described wheel trolley 16 is external metallization roller, is perpendicular to ground and places, has constant weight；Institute
Stating roller bearing 18 and be positioned at described wheel trolley 16 center, described detector core body 2 is positioned in roller bearing 18 in certain direction, at roller
In formula seismic sensor motor process, described roller bearing 18 remains stationary as, and does not rotates, to ensure internal detector core body 2
Sensitive direction is constant；Described end seat support 15 is installed on roller both sides by bolt 19 and spring washer, plays fixed roller 18
Effect；Described damping screw 17 is installed on two side ends seat support 15 top.The wheel trolley of roller type seismic sensor passes through outer end
Seat support 15 and damping screw 17 are fixed on multi link support 11；Roller type sensor mass is not less than 1.5Kg, reaches deadweight
The requirement on coupling ground.
This detection method includes the enforcement step of following order:
(1) according to the requirement of detection accuracy, detection system is set, i.e. determines roller type seismic sensors in earthquake signal receiving device
Device, the relative position relation of seismic source apparatus, determine the step pitch of every time movement, determines the spacing of roller type seismic sensor and individual
Number, and seismic signal is received device, wireless seismic acquistion base station, external trigger device, hand-held Pad terminal and seismic source apparatus exist
Assembling is portable detection system；
(2) detection system is placed in the original position of search coverage survey line, utilizes hand-held Pad to connect wireless seismic acquistion base
Stand, carry out parameter setting and data transmission in the wireless mode, need to carry out examination before formally starting and trigger, gather what first time excited
Seismic signal, receives seismic waveform, the real-time judge quality of data, if geological data first arrival is obvious, significant wave is clear and legible, then
Carry out data acquisition according to parameter current, otherwise need to delete current data, re-start earthquake data acquisition；
(3) moving step pitch is determined according to the detection system in step (1), after i.e. seismic source apparatus excites end every time, whole detection
The distance that system moves along survey line, and carry out data acquisition, and Real-time Monitoring Data quality according to step (2), until whole piece is surveyed
The data collection task of line completes；
(4) by data handling system, analyze geological data, carry out face ripple, shear wave, compressional wave, echo according to detection mode, dissipate
Ejected wave and refracted wave data prediction, superposition etc. process, it is thus achieved that the seismic profile that investigation depth is relatively big, resolution is higher；
(5) combine borehole data and the geologic information layer position information of search coverage, seismic profile is carried out high-resolution information solution
Release, delimit the scope of exceptions area, and form detection diagnosis report.
Operationally, first, according to the sensing in the design detection systems, i.e. detection process such as survey line length, required precision
Device spacing, geophone offset, moving step pitch and shot point and the corresponding relation of detector core body 2, determine that tandem type senses on this basis
The quantity of device, assembles sensor according to the road spacing in detection system；According to different exploitation methods, determine detector core body 2
Sensitive direction:
When carrying out longitudinal wave exploration, need to be by the detector core body 2 in tandem type roller type seismic sensor 1 according to sensitivity Vertical Square
To installation；
When carrying out shear wave exploration, need to be by the detector core body 2 in tandem type roller type seismic sensor 1 according to level of sensitivity side
To installation；
When carrying out multiband fusion, detector core body 2 need to be installed by three directions: component one H1 be level along line direction, point
Measuring two H2 for being horizontally and perpendicularly to line direction, component three V is vertical direction；
Seismic signal receives device and is made up of tandem type roller type seismic sensor 1, by its air plug head and wireless seismic base station pair
The sensor interface answered is connected；
By the air plug head of external trigger device 6, the triggering interface corresponding with wireless seismic base station is connected；
Seismic source apparatus equipped with piezoelectric transducer, the positive and negative two ends of this sensor respectively with the positive and negative terminal wiring on external trigger device 6
Post is connected, and when external force excites, compressional wave excites weight 9 freely falling body, hits base 10, the piezoelectric transducer sensing in base 10
Arrive, the signal of telecommunication of the piezoelectric transducer signal amplifying function by external trigger device 6, it is achieved the real-time external trigger of seismic signal；As
Fruit is shear-wave generation weight 14, and the most so-called external force refers to laterally hit the external force of base 10；
Open the WiFi of wireless seismic base station in seismic signal acquisition device, and pass through hand-held this WiFi of Pad terminal searching and connect
Connect, open the earthquake-capturing software of Pad terminal, and test communication condition, make whole system keep in communication normally；
Seismic source apparatus is positioned over roller type seismic sensor side, and whole system is moved along line direction with the moving step pitch of 0.2m
Dynamic, in data acquisition, monitor seismic signal in real time at hand-held Pad end, and complete earthquake data acquisition in this way.
In sum, detector core body 2 is fixed on roller shaft portion by the roller type seismic sensor 1 in the present invention, is protecting
Achieve Non-Destructive Testing in the case of card deadweight coupling, be really different from traditional geophone arrangement, improve work
Efficiency；Tandem type roller type seismic sensor 1 spacing is adjustable, and detector core body 2 number can be expanded, and can meet different covering time
The superposition condition of number, detection accuracy is high；Roller type seismic sensor 1 sensitive direction scalable, according to longitudinal direction and transverse set
Conjunction mode, can carry out multi-component earthquake data collection, process and explain；Seismic source apparatus can excite shear wave or compressional wave signal, in conjunction with
Multi-components prolongable roller type seismic sensor 1, can carry out multiple method seismic prospecting data process, as longitudinal wave exploration,
Shear wave exploration and Surface wave prospecting.
Claims (10)
1. a Portable city geologic anomaly seismic acquisition system, it is characterised in that: include that seismic signal receives device, wireless
Earthquake-capturing base station, external trigger device, hand-held Pad terminal, seismic source apparatus and data acquisition control and process software, described
Seismic signal is received device employing and linearly can be moved by what multi link support connected and composed by several roller type seismic sensors
Dynamic sensor-level is conjuncted；The roller bearing of roller type seismic sensor arranges detector core body, described roller type seismic sensor
It is arranged on the lower section of multi link support；Wireless seismic acquistion base station and external trigger device it is respectively mounted on multi link support, described
Seismic source apparatus is arranged on the side of multi link support；Described seismic source apparatus is connected with external trigger device, and described wireless seismic is adopted
Collection base station is connected with detector core body, external trigger device respectively, and WiFi antenna and hand-held are passed through in wireless seismic acquistion base station
Pad terminal called, loading data acquisition controlling and process software in described hand-held Pad terminal.
Portable city the most according to claim 1 geologic anomaly seismic acquisition system, it is characterised in that: described roller type
1～3 detector core body is installed on seismic sensor, when roller type seismic sensor installs a detector core body, this inspection
Ripple device core body is simple component, i.e. vertical component or horizontal component；When roller type seismic sensor installs two detector core bodies,
Two detector core bodies are two horizontal components, or are one vertical component of a horizontal component；When roller type seismic sensors
When three detector core bodies installed by device, three detector core bodies are that on horizontal plane, orthogonal two horizontal components and one are hung down
Straight component.
Portable city the most according to claim 1 geologic anomaly seismic acquisition system, it is characterised in that: described cymoscope
Core body is connected by the air plug head sensor interface corresponding with wireless seismic acquistion base station, the air plug head of described external trigger device with
Triggering interface corresponding to wireless seismic acquistion base station is connected；Described wireless seismic acquistion base station include wireless seismic base station body and
WiFi antenna, WiFi antenna is installed on the top of earthquake base station body, and wireless seismic base station body is arranged on the support of base station, base
Support of standing is arranged on multi link support.
Portable city the most according to claim 2 geologic anomaly seismic acquisition system, it is characterised in that: described cymoscope
Core body is simple component, and the sensitive direction of detector core body is the vertical component being perpendicular to direction, ground, and detector core body passes through
The deadweight of its roller and the ground coupling；The seismic source apparatus matched includes base, seismic source apparatus support, pulley and vertical for exciting
The compressional wave of ripple seismic signal excites weight, described seismic source apparatus support to be arranged on base, and base is placed on the ground and in it
Portion is provided with piezoelectric transducer, and the positive and negative two ends of piezoelectric transducer are connected with the positive and negative terminal binding post on external trigger device respectively；Institute
State compressional wave and excite weight longitudinal direction earthquake-wave-exciting, and gather seismic signal by described roller type seismic sensor, through described nothing
After line earthquake base station gathers seismic signal, transmitted to hand-held Pad terminal and data handling system by WiFi.
Portable city the most according to claim 2 geologic anomaly seismic acquisition system, it is characterised in that: described cymoscope
Core body is simple component, and the sensitive direction of detector core body is the horizontal component of horizontal direction, and detector core body passes through its roller
Deadweight and the ground coupling；The seismic source apparatus matched includes base, seismic source apparatus support, seismic source apparatus connecting rod and for swashing
Send out shear wave earthquake signal shear-wave generation weight, described seismic source apparatus support is arranged on base, base place on the ground and
Being internally provided with piezoelectric transducer, seismic source apparatus connecting rod, seismic source apparatus support and focus are installed in the upper end of seismic source apparatus support
Having angle and angle between device connecting rod less than 90 degree, the other end of seismic source apparatus connecting rod installs shear-wave generation weight, horizontal
Ripple excites weight be parallel to ground configuration and be positioned at the side of base, the described horizontal earthquake-wave-exciting of shear-wave generation weight, and leads to
Cross described roller type seismic sensor and gather seismic signal, after described wireless seismic base station gathers seismic signal, pass through WiFi
Transmission is to hand-held Pad terminal and data handling system.
Portable city the most according to claim 1 geologic anomaly seismic acquisition system, it is characterised in that: described cymoscope
Core body is multi-components, and detector core body comprises the component of 3 sensitive direction, wherein, component one H1 be level along line direction,
Component two H2 is for being horizontally and perpendicularly to line direction, and component three V is for being perpendicular to horizontal direction, and line direction is that detector core body connects
The bearing of trend of line, whole system moves detection with fixing moving step pitch along line direction.
Portable city the most according to claim 1 geologic anomaly seismic acquisition system, it is characterised in that: described roller type
Seismic sensor includes detector core body, end seat support, wheel trolley, damping screw, roller bearing, bolt and spring washer, and described wheel trolley is outward
Portion's Metal Contact Rollers, is perpendicular to ground and places；Described roller bearing is positioned at the center of described wheel trolley, and described detector core body is positioned at institute
State in roller bearing；Described end seat support is installed on the both sides of roller by described bolt and spring washer；Described damping screw is installed on end
The top of seat support；The wheel trolley of roller type seismic sensor is fixed on multi link support by outer end seat support and damping screw
On.
Portable city the most according to claim 2 geologic anomaly seismic acquisition system, it is characterised in that: described roller type
The number of seismic sensor is 2～16, and the spacing between two adjacent roller type seismic sensors is 0.2～2 meter.
Portable city the most according to claim 1 geologic anomaly seismic acquisition system, it is characterised in that: described multi link
Support is multi link shock insulation support.
The detection side of Portable city the most according to any one of claim 1 to 9 geologic anomaly seismic acquisition system
Method, the method includes the step of following order:
(1) according to the requirement of detection accuracy, detection system is set, i.e. determines roller type seismic sensors in earthquake signal receiving device
Device, the relative position relation of seismic source apparatus, determine the step pitch of every time movement, determines the spacing of roller type seismic sensor and individual
Number, and seismic signal is received device, wireless seismic acquistion base station, external trigger device, hand-held Pad terminal and seismic source apparatus exist
Assembling is portable detection system；
(2) detection system is placed in the original position of search coverage survey line, utilizes hand-held Pad to connect wireless seismic acquistion base
Stand, carry out parameter setting and data transmission in the wireless mode, need to carry out examination before formally starting and trigger, gather what first time excited
Seismic signal, receives seismic waveform, the real-time judge quality of data, if geological data first arrival is obvious, significant wave is clear and legible, then
Carry out data acquisition according to parameter current, otherwise need to delete current data, re-start earthquake data acquisition；
(3) moving step pitch is determined according to the detection system in step (1), after i.e. seismic source apparatus excites end every time, whole detection
The distance that system moves along survey line, and carry out data acquisition, and Real-time Monitoring Data quality according to step (2), until whole piece is surveyed
The data collection task of line completes；
(4) by data handling system, analyze geological data, carry out face ripple, shear wave, compressional wave, echo according to detection mode, dissipate
Ejected wave and refracted wave data prediction, superposition etc. process, it is thus achieved that the seismic profile that investigation depth is relatively big, resolution is higher；
(5) combine borehole data and the geologic information layer position information of search coverage, seismic profile is carried out high-resolution information solution
Release, delimit the scope of exceptions area, and form detection diagnosis report.
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