CN206722835U - A kind of elastic wave reflex subtraction unit on shield machine - Google Patents
A kind of elastic wave reflex subtraction unit on shield machine Download PDFInfo
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- CN206722835U CN206722835U CN201720210938.5U CN201720210938U CN206722835U CN 206722835 U CN206722835 U CN 206722835U CN 201720210938 U CN201720210938 U CN 201720210938U CN 206722835 U CN206722835 U CN 206722835U
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Abstract
A kind of elastic wave reflex subtraction unit on the shield machine, wherein device include the cutterhead of vibration exciter, wave detector, elastic device, wire and shield machine, and vibration exciter and wave detector can be arranged along cutterhead circumferential arrangement or along cutter radius direction arrangeds.The utility model solves that existing a variety of methods can carry out forecast work when being excavated with drilling and blasting method at present, but when with shield machine construction, can not possibly be entered in front of the cutterhead of driving by people and operated, industry wishes that equipment is arranged on the problem of being automatically brought into operation on shield machine；The utility model solves fills the objects such as sandstone, soil, water, foam in front of cutterhead, if the element detected is arranged on the problem of being worn quickly on cutterhead.
Description
Technical field
It the utility model is related to the prediction technology of highway, railway tunnel, subway, water power water conservancy water-conveyance tunnel etc.
Field, more particularly, to a kind of elastic wave reflex subtraction unit on shield machine.
Background technology
Front of tunnel heading geologic prediction when tunnel and tunnel construction is an important job.Opened at present with drilling and blasting method
Existing a variety of methods can carry out forecast work during digging, but when with shield machine construction, can not possibly be by people in front of the cutterhead of driving
Into operation, industry wishes equipment to be arranged on shield machine to be automatically brought into operation, and fill in front of cutterhead sandstone, soil, water,
The objects such as foam, if the element detected is arranged on cutterhead, it will be worn quickly.
The content of the invention
The purpose of this utility model is to design a kind of new elastic wave reflex subtraction unit being arranged on shield machine, solution
Certainly above mentioned problem.
To achieve these goals, the technical solution adopted in the utility model is as follows：
A kind of elastic wave reflex subtraction unit on shield machine, including vibration exciter, wave detector, elastic device, wire
With the cutterhead of shield machine, behind the cutterhead on drilling is set, cutterhead face has 5~10cm not drill through described in the hole spacing
The cutterhead, the vibration exciter and the wave detector are loaded in the drilling and impulses and receives towards tunneling direction；
The vibration exciter and the wave detector are pushed against on the cutterhead by the elastic device from below, make described impulse
Device and the wave detector will not move freely；The wave detector front end receiver vibration signal one side, is coated with couplant material,
As the wave detector and the couplant at the drilling bottom of the front cutterhead；The wire draws the cutterhead；
The vibration exciter and the arrangement form of the geophone arrangement include：
A. arranged along the circumferencial direction of the cutterhead, the vibration exciter is each at a distance of 25cm~40cm respectively in centre, both sides
A wave detector, the wave detector and the vibration exciter are put towards front face Parallel Tunnel center line direction；
B. arranged along the radial direction of the cutterhead, the vibration exciter is in centre, along radial direction both sides respectively at a distance of 25
~60cm respectively puts a wave detector, and the wave detector is towards front Parallel Tunnel center line direction；An or inspection
Ripple device is inclined to 5 °~7 ° of cutterhead edge towards front, a wave detector；
C. coordinate with one of above-mentioned 2 kinds of modes, arrange another group of device along the cutter radius direction, the vibration exciter exists
Centre, a wave detector, the wave detector court are respectively put in the 25~60cm of vibration exciter both sides along the cutter radius direction
It is respectively 5 °~10 ° and 7 °~15 ° to cutterhead outer rim direction, the vibration exciter is that 2 wave detectors are inclined towards cutterhead outer rim direction
Angle sum it 1/2.
The elastic device is spring, and the couplant material is butter or vaseline.
The vibration exciter and the wave detector are passed through the elastic device, hard tube and bonnet by the elastic device from below
It is pushed against on the cutterhead.
The lead guides the main shaft of the cutterhead into from the cutterhead, be drilled with the main shaft wire by hole, institute
It is 2 to state by hole, and by controlling the forceful electric power wire of the vibration exciter, a hole passes through the wave detector in a hole
Connect the weak-current lead of main frame.
The lead guides the main shaft of cutterhead into from the cutterhead, be drilled with the main shaft wire by hole, it is described logical
Via be 1, will connect the wave detector weak-current lead and connection forceful electric power the vibration exciter wire synthesize one group by, will
The weak-current lead adds screen layer, avoids high intensity pulsing electromagnetic field from producing electromagnetic interference.
The vibration exciter is ultra-magnetic telescopic shake vibration exciter in parallel；The wave detector is the high-resolution of seismic prospecting
Rate wave detector, worked using single-point serial section form.
A kind of measuring method of elastic wave reflex subtraction unit on shield machine：
Using cutterhead rotation measuring mode, the cutterhead is run with 0.2~0.5 cycle per minute velocity of rotation, every certain angle
I.e. vibration exciter and wave detector rotate certain distance measurement once, and the linear velocity rotated according to cutterhead sets the interval that impulses of vibrator
Time, i.e. a measuring point, and determine measuring point away from；The cutterhead rotates one week as 360 °, you can completes what multiple measuring points were formed
Circle measurement section, the time cross-section of a cylindrical shape or taper barrel can be formed after data processing.
When not making forecast measurement, wire departs from main frame extraction wire, in order to avoid wire during cutter head of shield machine headwork
Winding；In measurement manually or the wire is connected by manipulator with the main frame extraction wire；By manually or mechanically after survey
Hand is departed from.
For the measurement front of tunnel heading soil body and rock mass velocity, the vibration exciter is set to impulsing in front of excavation face using in abutment wall
Method：
A arranges 3~4, the wave detector towards face direction on the vibration exciter both sides, forms a short survey line,
The vibration exciter and the wave detector are arranged on a support, described to impulse by manually or with manipulator being pressed against on abutment wall
For device along being that parallel center line direction impulses towards face, the wave detector measures the back wave come from face direction；
B, the wire of measurement connects with main frame always；
Main frame gives the signal that impulses when C, measuring, and the vibration exciter impulses and provides signal to be gathered；
D combines with the measurement result being located on cutterhead, calculates velocity of wave.
The connection of circuit and cross complaint signal, in order for：
A. shield machine rotates starts with measurement host：
B. the shield machine signals to the measurement host after being ready to；
C. the measurement host starts signals to the shield machine, while gives the vibration exciter enabling signal；
D. the shield machine rotates, and provides angular signal to the measurement host；
E. the measurement host provides the vibration exciter of the excitation signal to the 1st group of arrangement, and the vibration exciter, which provides, to impulse
Pass signal gives the measurement host, and the measurement host provides beginning measurement signal, adds determination to start to receive the 1st group after being delayed
Arrange the geophone signal of the vibration exciter both sides；
F. the shield machine constantly sends the angle signal of rotation, after turning certain angle, by a predetermined angle with described in the time
Measurement host provides the signal that impulses to the 1st group of arrangement vibration exciter, and the vibration exciter provides the pass signal that impulses to the survey
Main frame is measured, the measurement host provides beginning measurement signal, adds and determines to start the 1st group of arrangement vibration exciter both sides of reception after being delayed
Geophone signal；
G. return to c~e so to repeat, to 360 ° of the shield machine corner only；
H. the measurement host and the connection of 4 wave detectors on the vibration exciter and the cutterhead are released, is opened
The survey velocity of wave for beginning to make abutment wall works.
The vibration exciter of ultra-magnetic telescopic shake son parallel connection in this patent, referring to the Chinese invention patent (patent No.：
201110430481.6)；The high resolution detector of seismic prospecting in this patent, referring to Chinese utility model patent (specially
Profit number：201020260262.9).The purpose of this utility model be to provide a kind of high wide band elastic wave reflex method and its
Installation method on shield machine, to solve to install the problem of equipment automatic measurement on shield machine.
To achieve the above object, the technical solution adopted in the utility model is as follows：
(1) using " ultra-magnetic telescopic shake vibration exciter in parallel " (patent of invention, the patent No.：201110430481.6) make
For focus, using " high resolution detector of seismic prospecting " (utility model patent, the patent No.：201020260262.9) make
To receive the wave detector of vibration signal, worked using single-point serial section form；
(2) behind the cutterhead of shield machine on drill, retaining cutterhead face has 5~10cm not drill through as protective layer, will swash
Shake device and wave detector loads, impulse and receive towards tunneling direction；
(3) after vibration exciter and wave detector load, be pushed against with spring from below on cutterhead, top power need it is small, make vibration exciter and
Wave detector will not move freely.Wave detector front end receiver vibration signal one side, is coated with a small amount of butter or vaseline, as inspection
Ripple device and the couplant at front impeller eye bottom.
(4) by the way of being measured when cutterhead rotates, the lead of wave detector and vibration exciter twines during to avoid cutterhead from rotating
Around lead guides the main shaft of cutterhead into from cutterhead, and wire is drilled with main shaft by hole, hole is provided with 2 kinds of modes：
A. 2 are bored by hole, by controlling the forceful electric power wire of vibration exciter, a hole connects main frame by wave detector in a hole
Weak-current lead；
B. one is bored by hole, and the vibration exciter wire of the weak-current lead of tie geophone and connection forceful electric power is synthesized one group and led to
Cross, weak-current lead is at this moment added into screen layer, avoid high intensity pulsing electromagnetic field from producing electromagnetic interference；
(5) when not making forecast measurement, above-mentioned wire departs from main frame extraction wire, in order to avoid cutter head of shield machine headwork
When wire wind.In measurement manually or manipulator connects two section leads；Departed from after survey by manually or mechanically hand；
(6) wave detector and vibration exciter arrange and each group of metering system impulses a little and the arrangement of geophone arrangement can be with a variety of
Form
A, arranged along the circumferencial direction of cutterhead, the vibration exciter respectively puts one at a distance of 25cm~40cm respectively in centre, both sides
Wave detector, wave detector and vibration exciter are towards front face Parallel Tunnel center line direction.Using cutterhead rotation measuring mode, cutterhead
Run with 0.2~0.5 cycle per minute velocity of rotation, be that vibration exciter and wave detector rotate certain distance measurement once every certain angle,
The linear velocity setting vibrator rotated according to cutterhead impulses interval time, i.e. a measuring point, and determine measuring point away from.Cutterhead turns
Dynamic one week is 360 °, you can complete the circular measurement section that multiple measuring points are formed, data can be formed after handling a cylindrical shape or
The time cross-section of person's taper barrel；Also removably 2 horizontal surveys line and 2 vertical surveys line during data interpretation, pass through existing side
Method (patent of invention, the patent No.：201010266601.9) calculate reflecting surface locus；
B. arranged along cutter radius direction, vibration exciter is respectively put at a distance of 25~60cm respectively in centre, along radial direction both sides
One wave detector, wave detector rotate one week towards front Parallel Tunnel center line direction, cutterhead and measure multiple measuring points, turned according to cutterhead
Dynamic linear velocity setting vibrator impulses interval time, i.e. a measuring point, and determine measuring point away from；2 circular surveys line are formed,
Also 4 horizontal surveys line and 4 vertical surveys line can be splitted into during data interpretation, pass through existing method (patent of invention, the patent No.：
201010266601.9) calculate reflecting surface locus；Also can a wave detector towards front, a wave detector deviation cutterhead side
5 °~7 ° of edge, cutterhead, which rotates, measures multiple measuring points for one week, forms 2 circular surveys line, a level can be formed after data processing
Drum-shaped time section, the time section of a taper barrel are qualitative by data:After quantitative interpretation, a water can be formed
Flat barrel surface and the log sheet in a taper cone barrel face, wherein the ground in the taper cone barrel face that the wave detector at deviation cutterhead edge obtains
Matter profile can detect the object outside tunnel contour, and the object away from tunnel perimeter about 4~6m can be detected outside 50m；
C. coordinate with one of above-mentioned 2 kinds of modes, arrange another group of device along cutter radius direction, vibration exciter is on centre, edge
A wave detector is respectively put in cutter radius direction in 25~60cm of vibration exciter both sides, wave detector towards cutterhead outer rim direction be respectively 5 °~
10 ° and 7 °~15 °, vibration exciter towards cutterhead outer rim direction be 2 wave detector drift angle sums it 1/2.Cutterhead rotation is measured multiple for one week
Measuring point, 2 circular sections are formed, 2 barrel-shaped log sheets of circular cone can be formed after data processing, can distinguish from them
Obtain the information of about 4m~15m object outside 50m outer tunnels profile；
(7) in order to measure the front of tunnel heading soil body and rock mass velocity, swashed using vibration exciter is set in abutment wall in front of excavation face
The method of shake, vibration exciter both sides arrangement towards face direction 3~4, wave detector, formed a short survey line, vibration exciter and
Wave detector is arranged on a shelf, by manually or with manipulator being pressed against on abutment wall, is joined with the measurement result being located on cutterhead
Close, calculate velocity of wave (patent of invention, the patent No.：201010290400.2)；
(8) connection of circuit and cross complaint signal, in order for：
A. shield machine rotates starts with measurement host：
B. shield machine signals to measurement host after being ready to；
C. host-initiated signals to shield machine, while gives vibration exciter enabling signal；
D. shield machine rotates, and provides angular signal to main frame；
E. start to receive the detection of the 1st group of arrangement vibration exciter both sides after determining delay time according to fixed delay time
Device signal；
F. shield machine constantly sends the angle signal of rotation, after turning certain angle, is provided by a predetermined angle with time main frame
The signal that impulses gives the 1st group of arrangement vibration exciter, and vibration exciter provides the pass signal that impulses to main frame, and main frame provides beginning measurement signal,
Start to receive the geophone signal of the 1st group of arrangement vibration exciter both sides after adding fixed delay time；
G. c~e is returned, is so repeated, 360 ° are stopped to shield machine corner；
H. the connection of main frame and 4 wave detectors on vibration exciter and cutterhead is released, starts to make the survey velocity of wave work of abutment wall；
(9) soil body and rock mass velocity before measurement face：
Using the method that velocity of wave is measured on the abutment wall of shield machine head rear：
A, the support containing vibration exciter and 3-4 wave detector is pressed tightly on abutment wall by human hand or manipulator, vibration exciter
Impulsed along center line direction, the back wave that wave detector measurement comes from face direction.
B, the wire of measurement can connect with main frame always；
Main frame gives the signal that impulses when C, measuring, and vibration exciter impulses and provides signal to be gathered.
The beneficial effects of the utility model can be summarized as follows：
1st, the utility model solves at present that existing a variety of methods can carry out forecast work when being excavated with drilling and blasting method, but
It can not possibly be entered when with shield machine construction, in front of the cutterhead of driving by people and operated, industry wishes that equipment is arranged on shield machine
The problem of being automatically brought into operation.
2nd, the utility model solves fills the objects such as sandstone, soil, water, foam in front of cutterhead, the element detected
If the problem of being worn quickly on cutterhead.
Brief description of the drawings
Fig. 1 be vibration exciter and wave detector installed on cutterhead along one of cutter radius profile, vibration exciter and wave detector
Arranged along cutter radius direction, vibration exciter and wave detector are towards the parallel center line direction of front face.
Wherein：
1 wave detector；
2 vibration exciters；
The drilling of 3 installation wave detectors and vibration exciter；
4 hard tube for withstanding wave detector；
5 install wave detector and vibration exciter after stablize their spring；
6 connection vibration exciters and the wire of wave detector and main frame；
7 installation vibration exciters and wave detector withstand the bonnet of spring；
10 cutterheads；
K vibration exciters and the distance of wave detector installation.
Fig. 2 be vibration exciter and wave detector installed on cutterhead along the two of cutter radius profile, vibration exciter and wave detector
Arranged along cutter radius direction, vibration exciter and wave detector are towards tunnel edge direction.
Wherein：
1 wave detector；
2 vibration exciters；
The drilling of 3 installation wave detectors and vibration exciter；
4 hard tube for withstanding wave detector；
Stablize their spring after 5 mounted wave detectors and vibration exciter；
6 connection vibration exciters and the wire of wave detector and main frame；
7 installation vibration exciters and wave detector withstand the bonnet of spring；
10 cutterheads；
K vibration exciters and the distance of wave detector installation.
One of vertical cutter radius profile that Fig. 3 installs for vibration exciter and wave detector on cutterhead, vibration exciter and detection
Device arranges along vertical cutter radius direction, towards front face center line direction parallel with center line.
Wherein
1 wave detector；
2 vibration exciters；
The drilling of 3 installation wave detectors and vibration exciter；
4 hard tube for withstanding wave detector；
Stablize their spring after 5 mounted wave detectors and vibration exciter；
6 connection vibration exciters and the wire of wave detector and main frame；
7 vibration exciters and wave detector withstand the bonnet of spring；
10 cutterheads；
K vibration exciters and the distance of wave detector installation.
Fig. 4 is to impulse and receive schematic diagram.
Wherein：
1 wave detector；
2 vibration exciters；
11 measuring surface；
12 reflectings surface.
Fig. 5 is the vibration exciter and wave detector scheme of installation that velocity of wave is surveyed on abutment wall.
Wherein：
1 wave detector；
2 vibration exciters；
The drilling of 3 installation wave detectors and vibration exciter；
4 hard tube for withstanding wave detector；
Stablize their spring after 5 mounted wave detectors and vibration exciter；
6 connection vibration exciters and the wire of wave detector and main frame；
7 vibration exciters and wave detector withstand the bonnet of spring；
The metal derby to be impulsed in front of 8 vibration exciters；
9 supports；
K vibration exciters and the distance of wave detector installation.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
A kind of elastic wave reflex subtraction unit on shield machine as Figure 1-5, including vibration exciter 2, wave detector
1st, the cutterhead 10 of elastic device 5, wire 6 and shield machine, behind the cutterhead 10 on drilling 3 is set, the drilling 3 is apart from institute
Stating cutterhead face has 5~10cm and does not drill through the cutterhead, and the vibration exciter 2 and the wave detector 1 are loaded in the drilling 3 simultaneously
And impulse and receive towards tunneling direction.
The vibration exciter 2 and the wave detector 1 are pushed against the cutterhead by the elastic device 5 behind the cutterhead 10
On 10, the vibration exciter 2 and the wave detector 1 is set to move freely；The front end receiver vibration signal one of wave detector 1
Face, couplant material is coated with, as the couplant between the bottom of drilling 3 of the wave detector 1 and the front cutterhead 10；It is described to lead
Line 6 draws the cutterhead.
The arrangement form of vibration exciter 2 and the wave detector 1 arrangement includes：
A. arranged along the circumferencial direction of the cutterhead 10, the vibration exciter 2 is in centre, and both sides are respectively at a distance of 25cm~40cm
Respectively put a wave detector 1, the wave detector 1 and the vibration exciter 2 are towards front face Parallel Tunnel center line direction；
B. arranged along the radial direction of the cutterhead 10, the vibration exciter 2 is in centre, along radial direction both sides respectively apart
25~60cm respectively puts a wave detector 1, and the wave detector 1 is towards front Parallel Tunnel center line direction；An or institute
State wave detector 1 and be inclined to 5 °~7 ° of 10 edge of cutterhead towards front, another described wave detector 1；
C. coordinate with one of above-mentioned 2 kinds of modes, another group of device, the vibration exciter are arranged along the radial direction of cutterhead 10
2 in centre, a wave detector 1 is respectively put in the 25~60cm of both sides of vibration exciter 2 along the radial direction of cutterhead 10, described in two
Wave detector 1 towards cutterhead outer rim direction be respectively 5 °~10 ° and 7 °~15 °, the vibration exciter 2 towards cutterhead outer rim direction be 2
The individual drift angle sum of wave detector 1 it 1/2.
In more preferred embodiment, the elastic device 5 is spring, and the couplant material is butter or all scholars
Woods.
In more preferred embodiment, the elastic device 5 leads to the vibration exciter 2 and the wave detector 1 from below
The elastic device 5, hard tube 4 and bonnet 7 is crossed to be pushed against on the cutterhead 10.
In more preferred embodiment, the lead guides the main shaft of the cutterhead 10 into, is drilled with and leads in the main shaft
Line 6 by hole, described by hole is 2, and a hole is by controlling the forceful electric power wire 6 of the vibration exciter 2, described in one
Hole connects the weak-current lead 6 of main frame by the wave detector 1.
In more preferred embodiment, the lead guides the main shaft of cutterhead 10 into from the cutterhead 10, in the main shaft
In be drilled with wire 6 by hole, described by hole be 1, will connect the weak-current lead 6 and connection forceful electric power of the wave detector 1
The wire 6 of vibration exciter 2 synthesizes one group by by the weak-current lead 6 plus screen layer, avoiding high intensity pulsing electromagnetic field from producing electromagnetism and doing
Disturb.
In more preferred embodiment, the vibration exciter 2 is ultra-magnetic telescopic shake vibration exciter in parallel；The detection
Device 1 is the high resolution detector of seismic prospecting, is worked using single-point serial section form.
A kind of measuring method of elastic wave reflex subtraction unit on shield machine：
Using cutterhead rotation measuring mode, the cutterhead 10 is run with 0.2~0.5 cycle per minute velocity of rotation, every certain angle
Degree is that vibration exciter 2 and wave detector 1 rotate certain distance measurement once, and the linear velocity setting rotated according to the cutterhead 10 is described to swash
Shake the impulsing interval time of device 2, i.e. a measuring point, and determine measuring point away from；The cutterhead 10 rotates one week as 360 °, you can complete
The circular measurement section formed into multiple measuring points, the time section of a cylindrical shape or taper barrel can be formed after data processing
Figure.
In more preferred embodiment, when not making forecast measurement, wire 6 departs from main frame extraction wire 6, in order to avoid shield
Wire 6 is wound during structure machine knife 10 headwork of disk；In measurement manually or manipulator draws the wire 6 and the main frame
Wire 6 connects；Departed from after survey by manually or mechanically hand.
It is described using being set in abutment wall for the measurement front of tunnel heading soil body and rock mass velocity in more preferred embodiment
The method that vibration exciter 2 impulses to excavation face front：
A, 3~4 wave detectors 1 towards face direction are arranged on the both sides of vibration exciter 2, forms a short survey
Line, the vibration exciter 2 and the wave detector 1 are arranged on a support 9, by manually or with manipulator being pressed against on abutment wall, institute
State vibration exciter 2 to impulse along towards the i.e. parallel center line direction of face, the wave detector 1 measures the reflection come from face direction
Ripple；
B, the wire 6 of measurement connects with main frame always；
Main frame gives the signal that impulses when C, measuring, and the vibration exciter 2 impulses and provides signal to be gathered；
D, combine with the measurement result being located on cutterhead, calculate velocity of wave.
In more preferred embodiment, the connection of circuit and cross complaint signal, in order for：
A. shield machine rotates starts with measurement host：
B. the shield machine signals to the measurement host after being ready to；
C. the measurement host starts signals to the shield machine, while gives the enabling signal of vibration exciter 2；
D. the shield machine rotates, and provides angular signal to the measurement host；
E. the measurement host provides the vibration exciter 2 of the excitation signal to the 1st group of arrangement, and the vibration exciter 2 provides sharp
Shake pass signal gives the measurement host, and the measurement host provides beginning measurement signal, adds determination to start to receive the 1st after being delayed
Group arranges the signal of wave detector 1 of the both sides of vibration exciter 2；
F. the shield machine constantly sends the angle signal of rotation, after turning certain angle, by a predetermined angle with described in the time
Measurement host provides the signal that impulses to the 1st group of arrangement vibration exciter 2, and the vibration exciter 2 provides the pass signal that impulses to described
Measurement host, the measurement host provide beginning measurement signal, add determination to start to receive the 1st group of 2 liang of arrangement vibration exciter after being delayed
The signal of wave detector 1 of side；
G. return to c~e so to repeat, to 360 ° of the shield machine corner only；
H. the measurement host and the connection of 4 wave detectors 1 on the vibration exciter 2 and the cutterhead are released,
The survey velocity of wave for starting to make abutment wall works.
In some specific embodiment：
(1) if 10 a diameter of 6.4m of cutter head of shield machine, situation as shown in Figure 3, at away from the side edge 0.4m of cutterhead 10
If arrangement is detected in vertical cutter radius direction, containing vibration exciter 2 and wave detector 1, vibration exciter 2 is in centre, and both sides are away from impulsing
Point 25cm respectively sets a wave detector 1.So, cutterhead 10 rotates a circle 360 °, and its circumference is 18.84m；
(2) by the 0.3 cycle per minute setting rotating speed of cutterhead 10, then linear velocity is 10.47cm/s, and angular speed is 2 °/s.By Fig. 3 side
Formula makees arrangement of measuring-line：Preceding when once impulsing, left wave detector 1 is on the left side of vibration exciter 2, and right wave detector 1 is on the right of vibration exciter 2；Under
When once impulsing, vibration exciter 2 rotates 50cm, that is, turns 9.6 °, the right institute of wave detector 1 when at this moment left wave detector 1 once impulses before
The interval time that impulses so to be impulsed every time a little in position ... is 4.78 seconds.Each measuring point should impulse 2 times, and interval time is
0.5s, at this moment cutterhead 10 move 5.25cm.The information of this 2 receptions that impulse is superimposed by acquisition software；
(3) ripple for being directed towards excavating the front of tunnel heading in direction immediately ahead of tunnel surveyed by above-mentioned (1), (2) arrangement, knife
Disk 10 circles, and forms a circular survey line, the time section of a drum type can be formed after processing, can be used as qualitative solution
The three-dimensional data released.2 horizontal surveys line and 2 vertical surveys line can also be therefrom splitted into simultaneously, 4 width can be turned into after data is handled
Plane time section, optional a horizontal profile and a vertical section make quantitative interpretation；
(4) Fig. 2 method for arranging is pressed, separately there is one group of arrangement arranged along the radial direction of cutterhead 10.Vibration exciter is set in centre
2, a wave detector 1 is respectively set along the both sides of radial direction vibration exciter 2, wherein a wave detector 1 is towards 10 ° of 10 edge direction of cutterhead, it is another
Wave detector 1 is towards 5 ° of cutterhead edge direction, and vibration exciter 2 is towards 7 ° of 10 edge direction of cutterhead.What at this moment they were surveyed is directed towards tunnel
Geological condition outside road outer rim, such as the 8.8m that oblique 10 ° of wave detectors 1 survey can will be measured outside tunnel contour outside 50m,
About 12m outside tunnel contour can be measured outside 70m；Oblique 5 ° of wave detectors 1 survey the 4.4m that can will be measured outside tunnel contour outside 50m,
About 6.7m outside tunnel contour can be measured outside 70m；
By 2 measurement data of each measurement point by 2 measurement data longitudinal stacks of each measurement point.So it may make up
2 circular surveys line, may make up the time section of 2 width cone after data processing, and main detect will each measure outside tunnel
2 measurement data longitudinal stacks of point.2 circular surveys line are so may make up, 2 width cone is may make up after data processing
Time section, the main geological condition detected outside tunnel outer margin contour.
(5) in order to measure velocity of wave, as shown in Figure 5, vibration exciter 2 and four wave detectors 1 are arranged on support 9, in use,
With manipulator or manpower vertical to being attached on abutment wall, the end of wave detector 1 is coated with butter or vaseline does couplant, and vibration exciter
The shake face of the shake block 8 of 2 front ends is adjacent in abutment wall, is connected the wire 6 of each wave detector 1 and vibrator and main frame with manipulator or manpower
Connect, then vibration exciter 2 and shake block 8 impulse along face direction, and wave detector 1 receives.Then the measurement knot with being located on cutterhead 10
Fruit is combined, and calculates velocity of wave (patent of invention, the patent No.：201010290400.2).
The utility model solves at present that existing a variety of methods can carry out forecast work when being excavated with drilling and blasting method, but
It can not possibly be entered during with shield machine construction, in front of the cutterhead of driving by people and operated, industry wishes that equipment is arranged on shield machine certainly
The problem of dynamic operation.The utility model solves fills the objects such as sandstone, soil, water, foam in front of cutterhead, the member detected
If part is arranged on cutterhead, the problem of being worn quickly.
The utility model is described in detail above by specific and preferred embodiment, but those skilled in the art should
This understands that the utility model is not limited to embodiment described above, all within the spirit and principles of the utility model, is made
Any modification, equivalent substitution etc., should be included within the scope of protection of the utility model.
Claims (6)
- A kind of 1. elastic wave reflex subtraction unit on shield machine, it is characterised in that：Including vibration exciter, wave detector, elasticity The cutterhead of device, wire and shield machine, behind the cutterhead on drilling is set, cutterhead face described in the hole spacing has 5~ 10cm does not drill through the cutterhead, and the vibration exciter and the wave detector are loaded in the drilling and impulses and receives towards pick Enter direction；The vibration exciter and the wave detector are pushed against on the cutterhead by the elastic device from below, make the vibration exciter and The wave detector will not move freely；The wave detector front end receiver vibration signal one side, is coated with couplant material, as The wave detector and the couplant at the drilling bottom of the front cutterhead；The wire draws the cutterhead；The vibration exciter and the arrangement form of the geophone arrangement include：A. arranged along the circumferencial direction of the cutterhead, the vibration exciter respectively puts one at a distance of 25cm~40cm respectively in centre, both sides The wave detector, the wave detector and the vibration exciter are towards front face Parallel Tunnel center line direction；B. arranged along the radial direction of the cutterhead, the vibration exciter in centre, along radial direction both sides respectively at a distance of 25~ 60cm respectively puts a wave detector, and the wave detector is towards front Parallel Tunnel center line direction；An or detection Device is inclined to 5 °~7 ° of cutterhead edge towards front, a wave detector；C. coordinate with one of above-mentioned 2 kinds of modes, arrange another group of device along the cutter radius direction, the vibration exciter is in Between, respectively put a wave detector, the wave detector direction in the 25~60cm of vibration exciter both sides along the cutter radius direction Cutterhead outer rim direction is respectively 5 °~10 ° and 7 °~15 °, the vibration exciter towards cutterhead outer rim direction be 2 wave detector drift angles Sum it 1/2.
- 2. the elastic wave reflex subtraction unit according to claim 1 on shield machine, it is characterised in that：The elasticity Device is spring, and the couplant material is butter or vaseline.
- 3. the elastic wave reflex subtraction unit according to claim 1 on shield machine, it is characterised in that：The elasticity The vibration exciter and the wave detector are pushed against the cutterhead by device from below by the elastic device, hard tube and bonnet On.
- 4. the elastic wave reflex subtraction unit according to claim 1 on shield machine, it is characterised in that：Lead is from institute State the main shaft that cutterhead guides the cutterhead into, be drilled with the main shaft wire by hole, described by hole is 2, an institute Hole is stated by controlling the forceful electric power wire of the vibration exciter, a hole passes through the weak-current lead that the wave detector connects main frame.
- 5. the elastic wave reflex subtraction unit according to claim 1 on shield machine, it is characterised in that：Lead is from institute State the main shaft that cutterhead guides cutterhead into, be drilled with the main shaft wire by hole, described by hole is 1, by described in connection The weak-current lead of wave detector and the vibration exciter wire of connection forceful electric power synthesize one group by the way that the weak-current lead is added into shielding Layer, high intensity pulsing electromagnetic field is avoided to produce electromagnetic interference.
- 6. the elastic wave reflex subtraction unit according to claim 1 on shield machine, it is characterised in that：It is described to impulse Device is ultra-magnetic telescopic shake vibration exciter in parallel；The wave detector is the high resolution detector of seismic prospecting, using list The form work of point serial section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720210938.5U CN206722835U (en) | 2017-03-06 | 2017-03-06 | A kind of elastic wave reflex subtraction unit on shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720210938.5U CN206722835U (en) | 2017-03-06 | 2017-03-06 | A kind of elastic wave reflex subtraction unit on shield machine |
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| Publication Number | Publication Date |
|---|---|
| CN206722835U true CN206722835U (en) | 2017-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720210938.5U Withdrawn - After Issue CN206722835U (en) | 2017-03-06 | 2017-03-06 | A kind of elastic wave reflex subtraction unit on shield machine |
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| CN (1) | CN206722835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703822A (en) * | 2017-03-06 | 2017-05-24 | 北京水工资环新技术开发有限公司 | Elastic wave reflecting method device installed on shield and its measuring method |
-
2017
- 2017-03-06 CN CN201720210938.5U patent/CN206722835U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703822A (en) * | 2017-03-06 | 2017-05-24 | 北京水工资环新技术开发有限公司 | Elastic wave reflecting method device installed on shield and its measuring method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171208 Effective date of abandoning: 20200313 |
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| AV01 | Patent right actively abandoned |