CN207908705U - Horizontal drilling rock mass velocity test device - Google Patents
Horizontal drilling rock mass velocity test device Download PDFInfo
- Publication number
- CN207908705U CN207908705U CN201820355213.XU CN201820355213U CN207908705U CN 207908705 U CN207908705 U CN 207908705U CN 201820355213 U CN201820355213 U CN 201820355213U CN 207908705 U CN207908705 U CN 207908705U
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- CN
- China
- Prior art keywords
- wave velocity
- energy converter
- testing device
- velocity testing
- pusher
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of horizontal drilling rock mass velocity test device, including well logging energy converter, the protective device being set in outside well logging energy converter, flexible connection pusher on the protection device and antifriction device.Protective device includes the steel shell for having the PPR pipe perforated or nylon rod on wall and being flexibly connected with it.Pusher includes the axial aluminium alloy rod being threaded through in antifriction device and the stainless joint for being connected to its end.The wave velocity testing device of the utility model has the characteristics that using flexible, easily worn part replacement is convenient, test result is accurate.
Description
Technical field
The utility model belongs to geotechnical engineering investigation field, is related to a kind of rock mass velocity test device, more particularly to a kind of
Applied to horizontal drilling rock mass velocity test device.
Background technology
A general common hair is double currently on the market receives well logging energy converter, is by a transmitting terminal and two receiving terminal groups
At wherein transmitting terminal to the distance, delta l for receiving 1 is 30cm, and the distance, delta d for receiving 1 to reception 2 is 20cm.
When vertical drilling wave velocity testing, acoustic signals are emitted by transmitting terminal, as shown in Figure 1, two receiving terminal S1 ', S2 ' points
Not Jie Shou transmitting terminal F ' transmittings acoustic signals along hole wall slide after the fluctuating picture that generates, can be read respectively from oscillogram
Time t1, the t2 of Mintrop wave from transmitting terminal F ' arrival receiving terminal S1 ' and receiving terminal S2 '.
Then according to formula：The velocity of wave of rock mass can be calculated.
However, such energy converter is generally used for vertical drilling (well), there can be following three when applied to horizontal drilling and ask
Topic：
First, existing energy converter transmitting terminal is generally connect using flexible plastic tube with receiving terminal, and intensity is very low, and soft, because
This can not be in smooth feeding horizontal drilling；Furthermore it is easy chip off-falling without mud off, hole wall in horizontal drilling, energy converter is damaged
Seriously.
Second, drilling rock mass velocity test will obtain reliable waveform, it is necessary to assure have in entire test process good
Couplant, vertical drilling generally use hole in mud make couplant.But when horizontal drilling wave velocity testing, there are problems that two：
First, mud can not be stored in hole, couplant can not be provided in test process；Second is that energy converter is affected by gravity, the nothing in drilling
Method is placed in the middle, influences to test effect.
Third is affected by gravity, and energy converter feeding hole depth is more than that the appropriate location in 50m horizontal drillings is more difficult.
Utility model content
The utility model discloses a kind of rock mass velocity test device for horizontal drilling, including well logging energy converter, is arranged
The pusher of protective device and flexible connection on the protection device outside well logging energy converter.
Wherein, protective device includes floral tube.
Wherein, floral tube is the PPR pipe or nylon rod for having on wall perforation.
Wherein, it perforates and is distributed around tube wall, and be staggered.
Wherein, protective device includes the steel shell being set in outside well logging energy converter transmitting terminal and receiving terminal, steel shell
It is connect with floral tube by screw thread.
Wherein, it is arranged with high strength elastic layer outside steel shell, which forms the energy of cladding steel shell
The packing capsule of enough expansion/contractions.
Wherein, the pneumatic tube for being connected to each packing capsule is provided in protective device；On the packing capsule of energy converter transmitting terminal
Equipped with can to the water injection pipe of its internal water flooding, far from transmitting terminal receiving terminal packing capsule on be connected with exhaust outlet.
Wherein, butter is filled in the space formed between transmitting terminal, receiving terminal and its respective steel shell.
Wherein, pusher includes aluminium alloy rod and is connected to the stainless joint of its end, aluminium alloy rod and stainless steel
The diameter of connector is identical.
Wherein, further include antifriction device of the diameter more than protective device, the pusher is axially across antifriction dress
It sets.
Description of the drawings
Fig. 1, which is that an existing hair is double, receives well logging energy converter.
Fig. 2 is that sound wave propagates schematic diagram in protective device in the utility model.
Fig. 3 be sound wave by couplant the route of transmission schematic diagram in rock mass.
Fig. 4 is PPR pipe bore section schematic diagram in the utility model.
Fig. 5 is the wave velocity testing apparatus structure schematic diagram of the utility model.
Fig. 6 is the first embodiment schematic diagram of pusher in the utility model.
Specific implementation mode
To fully understand the purpose of this utility model, feature and effect, now by following specific embodiments, and coordinate attached
Figure, is described in detail the utility model as follows：
As shown in figure 5, horizontal drilling rock mass velocity test device described in the utility model includes mainly well logging energy converter
1, it is set in the protective device 2 logged well outside energy converter and what is be flexibly connected on the protection device is used to push energy converter to specific bit
The pusher 3 set.
Protective device 2 includes multiple steel shells 21 and the floral tube 22 being threaded between steel shell.Protective device 2 is leaned on
The end of 1 transmitting terminal F of nearly well logging energy converter is equipped with push interface, the push interface by the connection types such as buckle, screw thread with push away
Device 3 is sent to be flexibly connected.
Steel shell 21 is respectively sleeved at outside transmitting terminal F and two receiving terminals S1, S2 of well logging energy converter 1.Such as Fig. 4 institutes
Show, floral tube 22 is most preferably using the PPR pipe or nylon rod on wall with perforation 23.Perforation 23 is distributed around tube wall, and is staggered,
When so that the sound wave of transmitting terminal F transmittings being propagated along PPR pipe or nylon rod, the multiple reflections at perforation, to eliminate protective device 2
Influence to test result.Specifically, as shown in Fig. 2, using there is the PPR pipe of perforation or nylon rod to be because installing additional on wall
After protective device, the sound wave of transmitting terminal F transmittings can also fill other than being slided along rock mass and reaching two receiving terminals S1, S2 along protection
It sets to slide and reaches above-mentioned two receiving terminal.Therefore, reliable rock mass velocity is obtained, it is necessary to eliminate protective device to test result
Influence, i.e., should meet the time that energy converter is propagated by the sound wave of transmitting " transmitting terminal " in rock mass is less than and is passed in protective device
The time broadcast, as shown in figure 3, t should be met1﹥ t11, t2﹥ t22.Because perforation PPR pipe or nylon rod have higher intensity and
Porous characteristic can make velocity of wave be less than 850m/s, and after by multiple reflections of perforating, Mintrop wave is hardly visible amplitude, and is disappeared
Influence in addition to protective device 2 to test result.
Pusher 3 includes bar portion 31 and the connector 32 for being connected to its end.Required depth is promoted according to well logging energy converter 1
The bar portion 31 of multiple pushers 3 and connector 32 are interconnected to realize push.
Further, pusher 3 is described by following two embodiments.
Fig. 6 is the first embodiment of the pusher 3 of the utility model.As shown, the pusher 3 is plated using DN25
Zinc pipe, 31 diameter of bar portion are less than 32 diameter of connector.Well logging energy converter 1 is sent to specified though the pusher of this kind of structure can be realized
Position functions, but when borehole formation is crushed, the chip off-falling in hole is easy to block connector, causes well logging energy converter to fall off and falls into hole
It is interior.Drilling is isolated in advance according to drilling rod recycles this method of the pusher push energy converter of the present embodiment, connector to be easy
It is stuck in the junction of drilling rod and drilling, and then damages energy converter.
The second embodiment of pusher 3 preferably solves the above problem.The bar portion 31 of pusher 3 in the present embodiment
Using the aluminium alloy rod of outer diameter 32mm, wall thickness 3mm, length 2000mm (2m).Connector 32 use stainless joint, bond diameter with
Aluminium alloy rod diameter is identical, keeps 3 diameter of entire pusher consistent, efficiently avoids also reducing while above-mentioned card resistance problem
Weight, reduces the friction of protective device and the wall of a borehole.The aluminium alloy rod of high intensity ensures energy converter during push-and-pull
Safety, it is more than 150m that can push energy converter depth.
Again as shown in figure 5, the utility model further includes antifriction device 4.Its center have axially through through-hole.It should
The diameter of antifriction device 4 is more than the diameter of pusher 3.When energy converter 1 is logged well in push, by the bar portion 31 of pusher 3
It is then attached to the push interface in protective device 2 across the through-hole of antifriction device 4, to reduce protective device during push
2 with the friction at drilling hole bottom, effectively reduce loss.
Good couplant is the guarantee that drilling rock mass velocity test will obtain reliable waveform.Test one to vertical drilling
As using mud in hole as couplant.But mud can not be stored when horizontal drilling wave velocity testing in hole, it can not in test process
Couplant is provided.Furthermore energy converter is affected by gravity, can not be placed in the middle in drilling, influence to test effect.
To solve the above-mentioned problems, the utility model is using butter, the steel of water, high intensity packing capsule and protective device 2
Shell 21 processed forms compound couplant.
Butter is filled in the space formed between energy converter transmitting terminal F and receiving terminal S1, S2 and its respective steel shell.
High strength elastic layer is arranged with outside steel shell 21, what which formed cladding steel shell 21 can
The packing capsule 5 of expansion/contraction.Further, the material of packing capsule 5 uses high-strength rubber, can bear 1MPa or more
Pressure, diameter expandable to 200mm can ensure that energy converter 1 is fully coupled with borehole wall, to collect good wave
Shape.
The pneumatic tube 6 for being connected to each packing capsule, preferably diameter 8mm pneumatic bombs reed pipe are provided in protective device 2.Position
Being equipped in the packing capsule 5 of transmitting terminal F can be to the water injection pipe 7 of its internal water flooding, the envelope from the receiving terminals of transmitting terminal F farther out
Every being connected with exhaust outlet 8 on capsule 5.
When being tested horizontal drilling using the utility model, first noted into energy converter 1 by water injection pipe 7 with water injecting pump
Water makes the air in utility model device be discharged by gas vent.Gas vent is closed after air is drained, by the utility model
Designated position in drilling is pushed to, then continues to pressurize with water injecting pump, so that packing capsule 5 is constantly expanded, capsule 5 and rock mass to be insulated
It can be tested after coming into full contact with (water filling pump pressure is about 0.5MPa at this time).
The wave velocity testing device of the utility model has the advantage that：
1, protective device intensity is high, the safety of energy effective protection energy converter.Using steel construction and high-strength nylon stick/PPR
Pipe, can safety of effective protection energy converter during horizontal drilling wave velocity testing pushes and pulls.
2, easily worn part is replaced convenient.Three gauge heads (transmitting terminal and receiving terminal) of energy converter are respectively independent, each gauge head
Can independently it replace.
3, pusher uses aluminium alloy rod and stainless joint, effectively reduces weight, reduces the friction with hole wall.
4, aluminium alloy rod is high as push rod intensity, it is ensured that safety of energy converter during push-and-pull.
5, the connector of pusher uses stainless joint, improves the intensity and wear resistence of joint area, effectively prevent
Joint failure caused by being dismantled for a long time in wave velocity testing process.
6, antifriction device effectively reduces the friction of protective device and drilling hole bottom during push.
It is to be understood that the utility model is described by some embodiments, those skilled in the art are not taking off
In the case of spirit and scope from the utility model, various changes can be carried out to these features and embodiment or equivalent are replaced
It changes.In addition, under the introduction of the utility model, can modify to these features and embodiment with adapt to particular situation and
Spirit and scope of the material without departing from the utility model.Therefore, the utility model is not by specific implementation disclosed herein
The limitation of example, the embodiment within the scope of fallen with claims hereof belong to the scope of protection of the utility model.
Claims (10)
1. a kind of horizontal drilling rock mass velocity test device, which is characterized in that including energy converter of logging well；It is set in well logging energy converter
The pusher of outer protective device and flexible connection on the protection device.
2. wave velocity testing device as described in claim 1, which is characterized in that the protective device includes floral tube.
3. wave velocity testing device as claimed in claim 2, which is characterized in that the floral tube is the PPR pipe for having on wall perforation
Or nylon rod.
4. wave velocity testing device as claimed in claim 3, which is characterized in that the perforation is distributed around tube wall, and staggered row
Row.
5. wave velocity testing device as claimed in claim 2, which is characterized in that the protective device includes being set in well logging transducing
Steel shell outside device transmitting terminal and receiving terminal, the steel shell are connect by screw thread with floral tube.
6. wave velocity testing device as claimed in claim 5, which is characterized in that be arranged with high strength elastic outside the steel shell
Layer, the high strength elastic layer form the packing capsule that can be expanded/shrink of cladding steel shell.
7. wave velocity testing device as claimed in claim 6, which is characterized in that be provided with each packing of connection in the protective device
The pneumatic tube of capsule；The packing capsule of energy converter transmitting terminal is equipped with can be to the water injection pipe of its internal water flooding, far from transmitting terminal
Receiving terminal packing capsule on be connected with exhaust outlet.
8. wave velocity testing device as claimed in claim 5, which is characterized in that the transmitting terminal, receiving terminal and its respective steel
Butter is filled in the space formed between shell processed.
9. wave velocity testing device as described in claim 1, which is characterized in that the pusher includes aluminium alloy rod and connection
Stainless joint in its end, the aluminium alloy rod are identical as the diameter of stainless joint.
10. wave velocity testing device as described in claim 1, which is characterized in that further include the antifriction that diameter is more than protective device
Device is wiped, the pusher is axially across antifriction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355213.XU CN207908705U (en) | 2018-03-15 | 2018-03-15 | Horizontal drilling rock mass velocity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355213.XU CN207908705U (en) | 2018-03-15 | 2018-03-15 | Horizontal drilling rock mass velocity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908705U true CN207908705U (en) | 2018-09-25 |
Family
ID=63558337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820355213.XU Expired - Fee Related CN207908705U (en) | 2018-03-15 | 2018-03-15 | Horizontal drilling rock mass velocity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207908705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870229A (en) * | 2019-03-08 | 2019-06-11 | 长江水利委员会长江科学院 | Wall Rock of Tunnel velocity of wave and relaxation zone thickness testing device and method |
-
2018
- 2018-03-15 CN CN201820355213.XU patent/CN207908705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870229A (en) * | 2019-03-08 | 2019-06-11 | 长江水利委员会长江科学院 | Wall Rock of Tunnel velocity of wave and relaxation zone thickness testing device and method |
| CN109870229B (en) * | 2019-03-08 | 2019-12-03 | 长江水利委员会长江科学院 | Wall Rock of Tunnel velocity of wave and relaxation zone thickness testing device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20190315 |
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| CF01 | Termination of patent right due to non-payment of annual fee |