CN209470946U - A kind of simulation laboratory test device suitable for cement mixing method - Google Patents
A kind of simulation laboratory test device suitable for cement mixing method Download PDFInfo
- Publication number
- CN209470946U CN209470946U CN201822218765.9U CN201822218765U CN209470946U CN 209470946 U CN209470946 U CN 209470946U CN 201822218765 U CN201822218765 U CN 201822218765U CN 209470946 U CN209470946 U CN 209470946U
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- China
- Prior art keywords
- drill pipe
- test device
- hollow drill
- laboratory test
- grouting
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- 239000004568 cement Substances 0.000 title claims abstract description 27
- 238000004088 simulation Methods 0.000 title claims abstract description 23
- 238000009533 lab test Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007569 slipcasting Methods 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 18
- 238000012360 testing method Methods 0.000 abstract description 13
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 208000009146 rhinoscleroma Diseases 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a kind of simulation laboratory test device suitable for cement mixing method, the device includes sequentially connected grouting system, Soil-cement system and chamber, grouting system includes slip casting surge tank, grouting pump and the Grouting Pipe being sequentially connected, Soil-cement system includes outside support and inner drill rods system, and outside support includes pedestal, the control cross bar for being respectively perpendicular the screw thread member for being connected to pedestal two sides and non-threaded rod piece and being connected to screw thread member and non-threaded rod piece upper end again；Inner drill rods system includes hollow drill pipe and the drill bit for being connected to hollow drill pipe lower end, and Grouting Pipe is connected with the upper interface of a rotary joint, the lower interface connection of hollow drill pipe upper end and rotary joint.Utility model device is easy to operate, runs smoothly, and occupied area is small, can be to the soil cement pile characteristic and curing performance progress experimental study under different geological conditions, and strong applicability, pile is uniform, high-quality, and test data is accurately reliable.
Description
Technical field
The utility model relates to laboratory testing rig, specifically a kind of simulation laboratory test suitable for cement mixing method
Device.
Background technique
Cement mixing method is a kind of method for reinforcing saturation Soft Clay Foundation, it utilizes cement, the conducts such as gypsum
Curing agent, by special Mixing Machine, in ground depths by weak soil and curing agent action of forced stirring, using curing agent and weak soil it
Between the chemical reaction of generated a series of physical, make weak soil scleroma at the high-quality of globality, water stability and some strength
Ground.Curing agent and surrounding the weak soil pressure that will be pressed into weak soil with the stirring blade of revolution mix and stir to form soil cement reinforcing body.
The main approaches of cement mixing pile have field test, numerical simulation and three kinds of indoor model test.
Field test is most direct, the most reliable method of research cement mixing method bearing capacity characteristic, and
It is to verify the best means of indoor model test and numerical analysis, but the test period is long, capital consumption amount is big, and work progress is not allowed
It is easy to control, the conclusion of regularity cannot be obtained.
Numerical analysis is mainly to study a kind of simple and cheap method of cement mixing method stress deformation characteristic,
Can since the precision of relevant parameter is lower, theoretical model and the true experimental condition goodness of fit are small, so artifical influence factor compared with
Greatly.
Boundary condition, stake soil material characteristic can be more accurately set and controlled in indoor model test, and model test may be used also
Also can be carried out the research of the correlation properties such as soil cement curing agent.
Therefore, the laboratory testing rig for how designing a kind of indoor simulation cement mixing method be have at present it is to be solved
Critical issue.
Utility model content
For the deficiency of cement mixing method experimental rig technology in prior art oblongum, the utility model provides a kind of behaviour
Make simplicity, infusion of financial resources is few, suitable for interior to the simulation laboratory test device of cement-soil mixing pile machine core characteristic research.
The utility model realizes that the technical solution of above-mentioned purpose is as follows:
A kind of simulation laboratory test device suitable for cement mixing method, including sequentially connected grouting system, cement
Native stirring system and chamber；
The grouting system includes slip casting surge tank, grouting pump and the Grouting Pipe being sequentially connected；
The Soil-cement system includes outside support and inner drill rods system；
The outside support mainly includes pedestal, is respectively perpendicular the screw thread member for being connected to pedestal two sides and non-threaded bar
Part, the control cross bar for being connected to screw thread member and non-threaded rod piece upper end；The inner drill rods system includes horizontal with the control
The middle part of bar hollow drill pipe connected vertically and the drill bit for being connected to hollow drill pipe lower end；
The Grouting Pipe is connected with a rotary joint；The rotary joint has interface, Grouting Pipe and rotation up and down
Interface connects on connector, and junction is non-rotatable, and hollow drill pipe end is connect with rotary joint lower interface；
The control cross bar is connected as screw thread with screw thread member and is connected, and is connected as being smoothly connected with non-threaded rod piece；
The screw thread member controls it by the second driving machine for being located at pedestal and rotates clockwise or counterclockwise, and works as screw thread member
When rotating clockwise or counterclockwise, for the control cross bar since the screw thread with screw thread member is connected effect, control cross bar can be corresponding
Move up and down；
The middle of the base is made of four blocks of thick steel plates, and front is surrounded by with an angle of 45 ° to the ground oblique there are opening
Support.
The chamber is located on pedestal.
Further, the drill bit lower part is set there are two symmetrical injected hole, and injected hole top is equipped with two groups of blades, each
Group blade is made of two blades, and two groups of blades are mutually perpendicular to.
Further, the hollow drill pipe is connect with first driving machine, for control hollow drill pipe direction of rotation and
Rotation speed, the second driving machine control hollow drill pipe running speed by screw thread member and promote speed；
Preferably, first driving machine is mountable on control cross bar, and second driving machine is installed on screw thread member
Bottom.
There are the aperture to match with hollow drill pipe in the middle part of the control cross bar, it is smoothly connected with hollow drill pipe, hollow brill
Bar can be rotated freely diametrically, but the medium position connecting in hollow drill pipe with control cross bar, and hollow drill pipe internal diameter is constant,
Enlarged outside diameter, to guarantee that relative displacement will not occur for hollow drill pipe and control cross bar when moving up and down.
The effect of the rotary joint is to keep Grouting Pipe not follow hollow drill pipe to rotate when hollow drill pipe rotation.
In the utility model, the slip casting surge tank is used to prepare and stores slurries, and slip casting surge tank is set to slip casting
Pump is above.
Preferably, pressure gauge and drain pulp valve are equipped at the grouting pump grout outlet.For controlling grouting pressure.
Two motor are servo motor.
In the utility model, the chamber is pvc pipe, and surrounding is there are drain hole, and there are opening, lower part is envelope on top
It closes, diameter can need voluntarily to determine according to test.
The working principle of the utility model is: in the soil body filling chamber that will be studied first, layered compacting
After reaching compacting requirement, related chamber is put into the middle of the base, hollow under the co- controlling of I driving machine and the second driving machine
Drilling rod rotates down, and after drill bit reaches the absolute altitude set in advance, opens grouting valve, starts grouting pump, and slurries pass through Grouting Pipe
It flows into inside hollow drill pipe, using in two injected hole injection soil bodys, the blade on drill bit rotates so that soil and slurries are abundant
Mixing, control hollow drill pipe are reversely rotated and are lifted up, continuous grouting in lifting process, and round-trip slip casting 2-3 times can pile.
Slurries main component includes cement, water, early strength agent, gypsum, flyash etc..
The utility model simulation laboratory test device is easy to operate, runs smoothly, and occupation area of equipment is small, infusion of financial resources
It is few, can under different geological conditions soil cement pile characteristic and curing performance carry out experimental study, pile uniformly, quality
Good, strong applicability, test data is accurately reliable, and the efficiency of cement mixing method simulation laboratory test can be greatly improved.
Detailed description of the invention
Fig. 1 is the simulation laboratory test apparatus structure schematic diagram of the utility model.
Fig. 2 is simulation laboratory test device top view.
Fig. 3 is drill bit structure schematic diagram.
Fig. 4 connect top view with control cross bar for hollow drill pipe.
Fig. 5 connect main view with control cross bar for hollow drill pipe.
Fig. 6 is chamber structural front view.
Fig. 7 is Grouting Pipe, rotary joint and hollow drill pipe connection schematic diagram.
In figure, each appended drawing reference is as follows:
1- slip casting surge tank, 2- grouting pump, 3- pressure gauge, 4- drain pulp valve, 5- Grouting Pipe, 6- rotary joint, 7- are hollow
Drilling rod, 8- drill bit, 9- screw thread member, the non-threaded rod piece of 10-, 11- control cross bar, 12- pedestal, the second driving machine of 13-, 14- the
One driving machine, 15- chamber, 16- blade, 17- injected hole.
Specific embodiment
The structure of the utility model is further detailed with reference to the accompanying drawing, these attached drawings are that this is practical
Preferred specific embodiment is not limitations of the present invention.
A kind of cement mixing method simulating lab test device as shown in Figure 1, including sequentially connected grouting system, water
Soil stirring system and chamber 15；
Grouting system includes the slip casting surge tank 1, grouting pump 2 and Grouting Pipe 5 being sequentially connected；Have at 2 grout outlet of grouting pump
Pressure gauge 3 and drain pulp valve 4.Slip casting surge tank 1 is used to prepare and stores slurries, and slip casting surge tank 1 is set on grouting pump 2
Face.
Soil-cement system includes outside support and inner drill rods system；Wherein, outside support mainly include pedestal 12,
It is respectively perpendicular the screw thread member 9 for being connected to 12 two sides of pedestal and non-threaded rod piece 10, is connected to screw thread member 9 and non-threaded rod piece
The control cross bar 11 of 10 upper ends；Inner drill rods system includes the middle part hollow drill pipe 7 connected vertically with the control cross bar 11
And it is connected to the drill bit 8 of 11 lower end of hollow drill pipe；Control cross bar 11 is connected as screw thread with screw thread member 9 and is connected, with no spiral shell
Rasp bar part 10 is connected as being smoothly connected；
Screw thread member 9 controls it by the second driving machine 13 for being located at base bottom and rotates clockwise or counterclockwise, and works as screw thread
When rod piece 9 rotates clockwise or counterclockwise, control cross bar 11 controls cross bar 11 due to being connected effect with the screw thread of screw thread member 9
It can move up and down accordingly.
It is made of in the middle part of pedestal 12 four blocks of thick steel plates, front is surrounded by diagonal brace with an angle of 45 ° to the ground there are opening.
Chamber 15 is located on pedestal, and chamber 15 is pvc pipe, and surrounding is there are drain hole, and there are opening, lower part envelopes on top
It closes.
As shown in figure 3,8 lower part of drill bit is set there are two symmetrical injected hole 17,17 top of injected hole is equipped with two groups of blades 16,
Each group of blade 16 is made of two blades, and two groups of blades 16 are mutually perpendicular to.
As shown in Fig. 1-2 and Fig. 4, hollow drill pipe 7 is connected with first driving machine 14, and the first driving machine 14 is installed on control
On cross bar 11 processed, for controlling 7 direction of rotation of hollow drill pipe and rotation speed, the second driving machine 13 is controlled by screw thread member 9
7 running speed of hollow drill pipe and promotion speed, the second driving machine 13 are installed on 9 bottom of screw thread member.
As shown in figure 5, there are the apertures to match with hollow drill pipe 7 at control cross bar 11 middle part, with the smooth company of hollow drill pipe 7
It connects, hollow drill pipe 7 can be rotated freely diametrically, but the medium position connecting in hollow drill pipe 7 with control cross bar 11, hollow
11 internal diameter of drilling rod is constant, enlarged outside diameter, to guarantee that opposite position will not occur for hollow drill pipe 7 and control cross bar 11 when moving up and down
It moves.
As shown in fig. 7, Grouting Pipe 5 is connected with a rotary joint 6, about 6 rotary joint has interface, and junction is not
Rotatable, 7 end rotary joint lower interface of hollow drill pipe connection, the effect of rotary joint 6 is protected when hollow drill pipe 7 rotates
Holding Grouting Pipe 5 does not follow hollow drill pipe 7 to rotate.
Chamber 15 as shown in FIG. 6 is pvc pipe, and surrounding is there are drain hole, and there are opening, lower part is closing, high on top
900mm, diameter can need voluntarily to determine according to test.
Illustrating the course of work of the utility model simulation laboratory test device with reference to the accompanying drawing is: will be ground first
In the soil body filling chamber 15 studied carefully, after layered compacting reaches compacting requirement, chamber 15 is put into the middle part of pedestal 12, the
Under the co- controlling of one driving machine 14 and the second driving machine 13, hollow drill pipe 7 rotates down, and has set in advance when drill bit 8 reaches
After absolute altitude, slip casting valve 4 is opened, starts grouting pump 2, slurries flow into inside hollow drill pipe 7 by Grouting Pipe 5, using two
Injected hole 17 injects in the soil body, and the blade 16 on drill bit 8 rotates so that soil and slurries are sufficiently mixed, and control hollow drill pipe 7 is reversed
It rotates and is lifted up, continuous grouting in lifting process, round-trip slip casting 2-3 times can pile.
The utility model can also have other various embodiments, in the situation without departing substantially from the spirit of the present invention and its essence
Under, those skilled in the art can make various corresponding changes and modifications according to the utility model, but these are corresponding
Change and modification all should belong to the protection scope of the utility model claims.
Claims (10)
1. a kind of simulation laboratory test device suitable for cement mixing method, which is characterized in that including sequentially connected slip casting
System, Soil-cement system and chamber (15)；The grouting system includes the slip casting surge tank (1) being sequentially connected, note
Stock pump (2) and Grouting Pipe (5)；The Soil-cement system includes outside support and inner drill rods system；The outside support
Mainly include pedestal (12), be respectively perpendicular the screw thread member (9) for being connected to pedestal (12) two sides and non-threaded rod piece (10), connection
In the control cross bar (11) of screw thread member (9) and non-threaded rod piece (10) upper end；The inner drill rods system includes and the control
The middle part hollow drill pipe connected vertically (7) of cross bar (11) processed and the drill bit (8) for being connected to hollow drill pipe lower end；The Grouting Pipe
(5) it is connected with the upper interface of a rotary joint (6), the lower interface of the rotary joint (6) and the end of hollow drill pipe (7)
Connection.
2. simulation laboratory test device according to claim 1, which is characterized in that the control cross bar (11) and threaded rod
Part (9) is to be threadedly coupled, and control cross bar (11) is to be smoothly connected with non-threaded rod piece (10).
3. simulation laboratory test device according to claim 1, which is characterized in that in the middle part of the control cross bar (11) there are
The aperture to match with hollow drill pipe (7) is smoothly connected with hollow drill pipe (7).
4. simulation laboratory test device according to claim 3, which is characterized in that hollow drill pipe (7) can be diametrically square
To rotating freely, in the medium position that hollow drill pipe (7) is connect with control cross bar (11), hollow drill pipe (7) internal diameter is constant, outer diameter
Expand.
5. simulation laboratory test device according to claim 1 or 2, which is characterized in that the screw thread member (9) is by being located at
The second driving machine (13) control on pedestal (12).
6. simulation laboratory test device according to claim 1 or 4, which is characterized in that pacify on the control cross bar (11)
It fills the first driving machine (14), the direction of rotation of the first driving machine (14) control hollow drill pipe (7) and rotation speed.
7. simulation laboratory test device according to claim 1, which is characterized in that there are two drill bit (8) lower part is set
Symmetrical injected hole (17), injected hole (17) top are equipped with two groups of blades (16), and each group of blade (16) is made of two blades,
Two groups of blades (16) are mutually perpendicular to.
8. simulation laboratory test device according to claim 1, which is characterized in that the slip casting surge tank (1) is for making
Standby and storage slurries, slip casting surge tank (1) are set to grouting pump (2) above.
9. simulation laboratory test device according to claim 1, which is characterized in that the chamber (15) is located at pedestal
(12) on, chamber (15) is made of pvc pipe, and surrounding is there are drain hole, and there are opening, lower part closings on top.
10. simulation laboratory test device according to claim 1, which is characterized in that set at grouting pump (2) grout outlet
There are pressure gauge (3) and drain pulp valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218765.9U CN209470946U (en) | 2018-12-27 | 2018-12-27 | A kind of simulation laboratory test device suitable for cement mixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218765.9U CN209470946U (en) | 2018-12-27 | 2018-12-27 | A kind of simulation laboratory test device suitable for cement mixing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209470946U true CN209470946U (en) | 2019-10-08 |
Family
ID=68089978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822218765.9U Expired - Fee Related CN209470946U (en) | 2018-12-27 | 2018-12-27 | A kind of simulation laboratory test device suitable for cement mixing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209470946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646755A (en) * | 2022-03-24 | 2022-06-21 | 中交四航工程研究院有限公司 | Test device for simulating field pile-forming construction of cement soil mixing pile |
-
2018
- 2018-12-27 CN CN201822218765.9U patent/CN209470946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646755A (en) * | 2022-03-24 | 2022-06-21 | 中交四航工程研究院有限公司 | Test device for simulating field pile-forming construction of cement soil mixing pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191008 |