CN209690232U - Transient state shear wave exciting device in a kind of hole - Google Patents
Transient state shear wave exciting device in a kind of hole Download PDFInfo
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- CN209690232U CN209690232U CN201920417492.2U CN201920417492U CN209690232U CN 209690232 U CN209690232 U CN 209690232U CN 201920417492 U CN201920417492 U CN 201920417492U CN 209690232 U CN209690232 U CN 209690232U
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- cylinder
- exciting device
- knocking hammer
- movable branching
- pneumatic knocking
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Abstract
The utility model relates to transient state shear wave exciting devices in a kind of hole, including exciting device shell, upper Pneumatic knocking hammer, lower Pneumatic knocking hammer, beche fixed bracket, upper movable branching rod, lower movable branching rod, upper cylinder, lower cylinder.The present apparatus can be used push rod that device is placed in the certain depth in drilling, pass through the upper Pneumatic knocking hammer and lower Pneumatic knocking hammer percussion excitation shear-wave in device, it solves existing in the prior art using earth's surface transient excitation, when hole depth is larger or rock-soil layer is harder, the energy of earth's surface exciting may be unable to satisfy the test request of deep measuring point, or when drilling is located at waters, impenetrably table taps excitation shearing wave, leads to not the technical issues of carrying out the test of shearing wave.
Description
Technical field
The utility model relates to Geotechnical Engineering field, transient state shear wave exciting device in especially a kind of hole.
Background technique
Elastic wave is divided into longitudinal wave and shear wave, and longitudinal wave is the direction of vibration of the particle wave coaxial with the direction of propagation, the spy of shear wave
Point is that the direction of vibration of particle is vertical with the direction of propagation of wave.Transverse wave speed is reflection medium to shear wave propagation ability and Rock And Soil
One important parameter of dynamic characteristics, the shear wave speed index of rock-soil layer are widely used in engineering practice.It is single
Hole method wave velocity testing is the important means that Rock And Soil shear wave velocity is tested in geotechnical investigation.
Currently, single-hole method shear wave velocity measurement mostly uses earth's surface transient excitation, tapped using sledgehammer in aperture horizontal direction
The high seismic wave of the shear plate excitation shearing wave component accounting of upper ballast, is examined using the three-component for being placed on designated depth in hole
Wave device and wave velocity testing instrument receive ground exciting, are transferred to the seismic wave in hole by stratum media, using wave in focus and inspection
The distance between wave device and propagation time calculate stratum shear wave velocity.First is that single-shot draws the time to receiving point, subtract adjacent
Point shear wave first arrival time obtains arrival time difference, the velocity of wave sought, and when excitation reception spacing is larger, wave passes wave and is possible to not be complete phase
Same path.Second is that this use earth's surface transient excitation mode, when hole depth is larger or rock-soil layer is harder, the energy of earth's surface exciting may
It is unable to satisfy the test request of deep measuring point, or when drilling is located at waters, impenetrably table taps excitation shearing wave, causes
It can not carry out the test of shearing wave.
Utility model content
In order to overcome the shortcomings of existing transient excitation device, the utility model provides transient state shear wave exciting dress in a kind of hole
It sets.
The technical scheme adopted by the utility model to solve the technical problem is as follows: transient state shear wave exciting device in a kind of hole,
Including exciting device shell, upper Pneumatic knocking hammer, lower Pneumatic knocking hammer, beche fixed bracket, upper movable branching rod, lower activity
Strut, upper cylinder, lower cylinder, upper support bar, lower support bar, upper Pneumatic knocking hammer tracheae, lower Pneumatic knocking hammer tracheae, cylinder gas
Pipe, push rod, shock sensor and sensor wire interface；
For cylindrical, both ends are hemispherical among the exciting device shell, at the middle part of exciting device shell inner cavity
The fixed bracket of beche is installed, the upper Pneumatic knocking hammer and lower Pneumatic knocking hammer are in installation contrary, symmetrical above and below
On the fixed bracket of beche；
The upper cylinder is mounted on exciting device shell inner cavity top, and three L-shaped upper movable branching rod lower ends pass through hinge
Chain is mounted on the fixed cradle top of beche, and the piston rod of upper cylinder is equipped with upper free bearing, one end connection of three upper support bars
On upper free bearing, the other end is connected to the middle part of three upper movable branching rods by hinge；On the exciting device shell
The upper strip-shaped hole stretched there are three being opened up on the side wall in portion for upper movable branching rod；
The lower cylinder is mounted on exciting device shell inner cavity lower part, and three L-shaped lower movable branching rod upper ends pass through hinge
Chain is mounted on the fixed frame bottom of beche, and the piston rod of lower cylinder is equipped with lower free bearing, one end connection of three lower support bars
On lower free bearing, the other end is connected to the middle part of three lower movable branching rods by hinge；Under the exciting device shell
The lower strip-shaped hole stretched there are three being opened up on the side wall in portion for lower movable branching rod；
Cylinder tracheae for controlling upper cylinder and lower cylinder expanding-contracting action is two, two cylinder tracheaes respectively all with it is upper
Cylinder is connected with lower cylinder, and cylinder tracheae is stretched out from the top of exciting device shell；
The upper Pneumatic knocking hammer tracheae connects upper Pneumatic knocking hammer, and lower Pneumatic knocking hammer tracheae connection is lower pneumatically to be tapped
Hammer, upper Pneumatic knocking hammer tracheae and lower Pneumatic knocking hammer tracheae are stretched out from the top of exciting device shell；
The fixed bracket of the beche is equipped with shock sensor, shock sensor and set on exciting device cover top portion
The sensor wire interface connection being equipped with；
The outer wall of the exciting device cover top portion is equipped with push stem nut, the push rod and push stem nut
It is threadedly coupled.
Further, the end of the upper movable branching rod and lower movable branching rod is equipped with the sawtooth that turns down outward, make device with
Hole wall inner support is solid and reliable.
The shape and length of the upper movable branching rod and lower movable branching rod are all the same, and realization device, which can stablize support, to be fixed
In the wall of a borehole.
The upper movable branching rod of described three is equidistantly arranged in upward radiation, and three lower movable branching rods are in decentralization
It penetrates shape equidistantly to arrange, device is made to contact supporting point symmetrically in hole wall, it can the stabilization of holding meanss during the work time.
The exciting device shell is made of stainless steel material, and material is corrosion-resistant, the various severe rings that are suitable for field
Border.
The upper cylinder and lower cylinder is two-way telescopic cylinder, reliable in action.
The cylinder tracheae is connect with upper cylinder by T shape gas-tpe fitting, is adapted to field environment and is quickly disassembled and installed.
It is certain in drilling that the utility model has the beneficial effect that push rod can be used to be placed in device for the present apparatus
Depth solves to deposit in the prior art by the upper Pneumatic knocking hammer and lower Pneumatic knocking hammer percussion excitation shear-wave in device
Use earth's surface transient excitation, when hole depth is larger or rock-soil layer is harder, the energy of earth's surface exciting may be unable to satisfy deep survey
The test request of point, or when drilling is located at waters, impenetrably table taps excitation shearing wave, leads to not carry out shearing wave
Test the technical issues of.
It is acted by upper cylinder, lower cylinder, synchronizes in three upper support bars and three lower support bars and strut upper movable branching rod
Pneumatic knocking hammer steady operation is kept in radiation opening, it can be achieved that device is reliably fixed with hole wall with lower movable branching rod.
One end of the present apparatus three upper lower support bars is connected on free bearing, the upper activity branch of the hinge connection that the other end is equipped with
The middle part of bar, lower movable branching rod cooperates the piston rod of upper and lower air cylinders to act, and the up and down strut that links is flexible, realization device with
Hole wall is reliably fixed.
The fixed bracket of present apparatus beche is equipped with shock sensor, and shock sensor is connected by sensor wire interface
Ground surface works seismic detector；The pulse signal generated is shaken, triggering ground surface works seismic detector carries out timing and monitoring record.
Present apparatus cylinder tracheae is connect with upper cylinder by T shape gas-tpe fitting, realizes that modularization is quickly torn open in field environment
It unloads and installs, greatly improve working efficiency.
The utility model is ingenious in design, easy to operate, is able to achieve larger or rock-soil layer is harder, the energy of earth's surface exciting in hole depth
Amount may be unable to satisfy the test request of deep measuring point, while also be able to achieve when drilling is located at waters, and impenetrably table taps
The Geography monitor of shearing wave is excited, there is good practical value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is structural schematic diagram when the up and down strut of the utility model is shunk；
Fig. 3 is structural schematic diagram when the up and down strut of the utility model opens；
Fig. 4 is the up and down strut retraction schematic diagram of the utility model implementation process；
Fig. 5 is that the up and down strut of the utility model implementation process opens schematic diagram.
Components and number in figure:
1- exciting device shell；The upper Pneumatic knocking hammer of 2-；The upper Pneumatic knocking hammer tracheae of 21-；Pneumatic knocking hammer under 3-；31-
Lower Pneumatic knocking hammer tracheae；4- beche fixes bracket；The upper movable branching rod of 5-；Movable branching rod under 6-；7- upper cylinder；It is cut with scissors on 71-
Seat；8- lower cylinder；Free bearing under 81-；9- upper support bar；10- lower support bar；11- cylinder tracheae；12- push rod；13- vibration passes
Sensor；14- sensor wire interface；The upper strip-shaped hole of 15-；Strip-shaped hole under 16-；17- pushes stem nut.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1~fig. 5, transient state shear wave exciting device in a kind of hole, including, exciting device shell 1, upper pneumatic percussion
The fixed bracket 4 of hammer 2, lower Pneumatic knocking hammer 3, beche, upper movable branching rod 5, lower movable branching rod 6, upper cylinder 7, lower cylinder 8, on
Support rod 9, lower support bar 10, upper Pneumatic knocking hammer tracheae 21, lower Pneumatic knocking hammer tracheae 31, cylinder tracheae 11, push rod 12,
Shock sensor 13 and sensor wire interface 14；
It is that cylindrical, both ends are hemispherical among the exciting device shell 1, in 1 inner cavity of exciting device shell
Portion is equipped with the fixed bracket 4 of beche, and the upper Pneumatic knocking hammer 2 and lower Pneumatic knocking hammer 3 are in contrary, symmetrical above and below
It is mounted on the fixed bracket 4 of beche；
The upper cylinder 7 is mounted on 1 inner cavity top of exciting device shell, and three L-shaped upper 5 lower ends of movable branching rod pass through
Hinge is mounted on fixed 4 top of bracket of beche, and the piston rod of upper cylinder 7 is equipped with upper free bearing 71, and the one of three upper support bars 9
End is connected on free bearing 71, and the other end is connected to the middle part of three upper movable branching rods 5 by hinge；The exciting dress
Set the upper strip-shaped hole 15 stretched there are three opening up on the side wall on 1 top of shell for upper movable branching rod 5；
The lower cylinder 8 is mounted on 1 inner cavity lower part of exciting device shell, and three L-shaped lower 6 upper ends of movable branching rod pass through
Hinge is mounted on fixed 4 bottom of bracket of beche, and the piston rod of lower cylinder 8 is equipped with lower free bearing 81, three lower support bars 10
One end is connected on lower free bearing 81, and the other end is connected to the middle part of three lower movable branching rods 6 by hinge；The exciting
The lower strip-shaped hole 16 stretched there are three being opened up on the side wall of 1 lower part of crust of the device for lower movable branching rod 6；
Cylinder tracheae 11 for controlling 8 expanding-contracting action of upper cylinder 7 and lower cylinder is two, and two cylinder tracheaes 11 are distinguished
All it is connected with upper cylinder 7 and lower cylinder 8, cylinder tracheae 11 is stretched out from the top of exciting device shell 1；
The upper Pneumatic knocking hammer tracheae 21 connects upper Pneumatic knocking hammer 2, and lower Pneumatic knocking hammer tracheae 31 connects lower gas
Dynamic hammer 3, upper Pneumatic knocking hammer tracheae 21 and the lower Pneumatic knocking hammer tracheae 31 of tapping is stretched out from the top of exciting device shell 1；
The fixed bracket 4 of the beche is equipped with shock sensor 13, shock sensor 13 and outside exciting device
The sensor wire interface 14 being equipped at the top of shell 1 connects；
The outer wall at 1 top of exciting device shell is equipped with push stem nut 17, the push rod 12 and push
Stem nut 17 is threadedly coupled.
In order to keep device and hole wall inner support solid and reliable, the end of the upper movable branching rod 5 and lower movable branching rod 6 is set
There is the sawtooth of turned-out folding.
In order to realization device can stabilization symmetrical above and below be supported and fixed in the wall of a borehole, the upper movable branching rod 5 and lower work
The shape and length of dynamic strut 6 are all the same.
In order to can holding meanss tap the course of work in stabilization.The upper movable branching rod 5 of described three is in radiation upwards
Shape is equidistantly arranged, and the lower movable branching rod 6 of described three is equidistantly arranged in downward radiation, and device is made to contact supporting point in hole wall
Symmetrically.
The exciting device shell 1 is made of stainless steel material, and material is corrosion-resistant, the various severe rings that are suitable for field
Border.
Reliably consistent for upper movable branching rod 5 and lower 6 expanding-contracting action of movable branching rod, the upper cylinder 7 and lower cylinder 8 use
Two-way telescopic cylinder.
The cylinder tracheae 11 is connect with upper cylinder 7 by T shape gas-tpe fitting, and the fast quick-detach of field environment and peace are adapted to
Dress.
Implementation process: as shown in Fig. 4~Fig. 5, the engineering seismograph on ground passes through the pickup wire on exciting device shell 1
Cable interface 14 connects shock sensor 13, cylinder tracheae 11, upper Pneumatic knocking hammer tracheae 21, lower Pneumatic knocking hammer tracheae 31 difference
Connect the pressurized control device on ground, upper movable branching rod 5 and lower movable branching rod 6 are shunk in exciting device shell 1, push rod 12
It is threadedly coupled with push stem nut 17, the present apparatus is pushed to the set depth of drilling.
Ground air compressing device is pressurizeed by the cylinder tracheae 11 stretched out to one for piston, controls upper cylinder 7, lower cylinder
8 synchronization actions, piston rod overhanging drive upper support bar 9 and the lower support bar 10 respectively of upper cylinder 7, lower cylinder 8, link on three
Movable branching rod 5 and lower movable branching rod 6 stretch out outside the upper strip-shaped hole 15 and lower strip-shaped hole 16 of 1 side wall of exciting device shell, are in respectively
Upper and lower radioactivity is opened, and the bottom end of upper movable branching rod 5 and lower movable branching rod 6 is equipped with sawtooth and penetrates hole wall, realization device and hole wall
It is reliably fixed.
Ground air compressing device to upper Pneumatic knocking hammer tracheae 21 by pressurizeing, and Pneumatic knocking hammer 2 works as and reaches percussion in control
When three-way magnetic valve inside hammer switchs set closing pressure, the magnetic piston fallen at a high speed hits substrate and generates transient state shake
Dynamic, impact force is transmitted to exciting device shell 1, realizes and taps excitation shear-wave downwards.
Ground air compressing device to lower Pneumatic knocking hammer tracheae 31 by pressurizeing, and Pneumatic knocking hammer 3 works as and reaches percussion under controlling
When three-way magnetic valve inside hammer switchs set closing pressure, the magnetic piston fallen at a high speed hits substrate and generates transient state shake
Dynamic, impact force is transmitted to exciting device shell 1, realizes and taps excitation shear-wave downwards.
The fixed bracket 4 of beche is equipped with shock sensor 13, the sensing on shock sensor 13 and exciting device shell 1
Device cable interface 14 is connected to the engineering seismograph on ground；Shock sensor 13 receives Pneumatic knocking hammer 2 and lower pneumatically strikes
The percussion vibration of hammer 3 generates pulse signal, issues trigger signal, and engineering seismograph carries out timing and detection record.
After the completion of work to be tested, ground air compressing device is pressurizeed by being used for the cylinder tracheae 11 of piston retraction to one,
Three upper movable branching rods 5 and lower movable branching rod 6 bounce back in exciting device shell 1, carry out returning for the present apparatus by push rod 12
Knock off work.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (7)
1. transient state shear wave exciting device in a kind of hole, which is characterized in that including exciting device shell (1), upper Pneumatic knocking hammer
(2), lower Pneumatic knocking hammer (3), beche fixed bracket (4), upper movable branching rod (5), lower movable branching rod (6), upper cylinder (7),
Lower cylinder (8), upper support bar (9), lower support bar (10), upper Pneumatic knocking hammer tracheae (21), lower Pneumatic knocking hammer tracheae (31),
Cylinder tracheae (11), push rod (12), shock sensor (13) and sensor wire interface (14)；
For cylindrical, both ends are hemispherical among the exciting device shell (1), in exciting device shell (1) inner cavity
It is fixed bracket (4) that portion is equipped with beche, the upper Pneumatic knocking hammer (2) and lower Pneumatic knocking hammer (3) be in it is contrary, on
Under be symmetrically mounted on beche fixed bracket (4)；
The upper cylinder (7) is mounted on exciting device shell (1) inner cavity top, and three L-shaped upper movable branching rod (5) lower ends are logical
It crosses hinge to be mounted at the top of beche fixed bracket (4), the piston rod of upper cylinder (7) is equipped with upper free bearing (71), three upper branch
One end of strut (9) is connected on free bearing (71), and the other end is connected in three upper movable branching rod (5) by hinge
Portion；The upper strip-shaped hole stretched there are three being opened up on the side wall on described exciting device shell (1) top for upper movable branching rod (5)
(15)；
The lower cylinder (8) is mounted on exciting device shell (1) inner cavity lower part, and three L-shaped lower movable branching rod (6) upper ends are logical
It crosses hinge and is mounted on fixed bracket (4) bottom of beche, the piston rod of lower cylinder (8) is equipped with lower free bearing (81), props up under three
One end of strut (10) is connected on lower free bearing (81), and the other end is connected to three lower movable branching rods (6) by hinge
Middle part；The lower bar shaped stretched there are three being opened up on the side wall of described exciting device shell (1) lower part for lower movable branching rod (6)
Hole (16)；
Cylinder tracheae (11) for controlling upper cylinder (7) and lower cylinder (8) expanding-contracting action is two, two cylinder tracheaes (11)
Difference is all connected with upper cylinder (7) and lower cylinder (8), and cylinder tracheae (11) is stretched out from the top of exciting device shell (1)；
Pneumatic knocking hammer (2) in upper Pneumatic knocking hammer tracheae (21) connection, under lower Pneumatic knocking hammer tracheae (31) connection
The top of Pneumatic knocking hammer (3), upper Pneumatic knocking hammer tracheae (21) and lower Pneumatic knocking hammer tracheae (31) from exciting device shell (1)
Portion is stretched out；
The beche fixed bracket (4) is equipped with shock sensor (13), shock sensor (13) and set on exciting device
Sensor wire interface (14) connection being equipped at the top of shell (1)；
Outer wall at the top of the exciting device shell (1) is equipped with push stem nut (17), the push rod (12) with push away
Stem nut (17) are sent to be threadedly coupled.
2. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the upper movable branching rod
(5) and the end of lower movable branching rod (6) is equipped with the sawtooth turned down outward.
3. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the upper movable branching rod
(5) and the shape of lower movable branching rod (6) and length it is all the same.
4. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the upper activity branch of described three
Bar (5) is equidistantly arranged in upward radiation, and the lower movable branching rod (6) of described three is equidistantly arranged in downward radiation.
5. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the exciting device shell
(1) it is made of stainless steel material.
6. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the upper cylinder (7) and
Lower cylinder (8) is two-way telescopic cylinder.
7. transient state shear wave exciting device in a kind of hole as described in claim 1, which is characterized in that the cylinder tracheae (11)
It is connect with upper cylinder (7) by T shape gas-tpe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417492.2U CN209690232U (en) | 2019-03-29 | 2019-03-29 | Transient state shear wave exciting device in a kind of hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417492.2U CN209690232U (en) | 2019-03-29 | 2019-03-29 | Transient state shear wave exciting device in a kind of hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209690232U true CN209690232U (en) | 2019-11-26 |
Family
ID=68606762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920417492.2U Active CN209690232U (en) | 2019-03-29 | 2019-03-29 | Transient state shear wave exciting device in a kind of hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209690232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137602A (en) * | 2021-10-21 | 2022-03-04 | 南京工业大学 | Transverse wave excitation source device and transverse wave excitation method |
| CN116973971A (en) * | 2023-04-28 | 2023-10-31 | 上海勘测设计研究院有限公司 | Vibration hammer and earthquake wave excitation device |
-
2019
- 2019-03-29 CN CN201920417492.2U patent/CN209690232U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137602A (en) * | 2021-10-21 | 2022-03-04 | 南京工业大学 | Transverse wave excitation source device and transverse wave excitation method |
| CN114137602B (en) * | 2021-10-21 | 2023-08-11 | 南京工业大学 | Transverse wave excitation source device and transverse wave excitation method |
| CN116973971A (en) * | 2023-04-28 | 2023-10-31 | 上海勘测设计研究院有限公司 | Vibration hammer and earthquake wave excitation device |
| CN116973971B (en) * | 2023-04-28 | 2024-03-29 | 上海勘测设计研究院有限公司 | Vibration hammer and earthquake wave excitation device |
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Address after: 611139 No.6, 18th floor, building 13, No.166, Section 2, Wenjiang District, Chengdu City, Sichuan Province Patentee after: Sichuan Zhonggui huatou Construction Engineering Co., Ltd Address before: 611130 No.07 Yongkang Road, Liucheng, Wenjiang District, Chengdu, Sichuan Province Patentee before: Sichuan Yudeng engineering survey and Design Co.,Ltd. |