CN105862869B - A kind of filling system - Google Patents
A kind of filling system Download PDFInfo
- Publication number
- CN105862869B CN105862869B CN201610223247.9A CN201610223247A CN105862869B CN 105862869 B CN105862869 B CN 105862869B CN 201610223247 A CN201610223247 A CN 201610223247A CN 105862869 B CN105862869 B CN 105862869B
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- pipe
- material cylinder
- cylinder
- cone
- cylindrical
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of filling system, including hydraulic cylinder, material cylinder, slurry pool, support and hydraulic pump, described hydraulic cylinder is lain in a horizontal plane on support with material cylinder, the front end connection hydraulic pump of hydraulic cylinder, the rear end connection material cylinder of hydraulic cylinder, hydraulic cylinder in material cylinder with being respectively equipped with piston and back-up ring, piston in hydraulic cylinder is connected with the piston in material cylinder by piston rod, the rear end of described material cylinder is provided with slurry pool, it is attached between material cylinder and slurry pool by pulp-absorbing pipe, steel reinforcement cage is arranged at the bottom of material cylinder, described steel reinforcement cage is placed in the soil body, steel reinforcement cage is formed by Grouting Pipe and binding reinforcing bars, steel reinforcement cage placed inside has three Grouting Pipes, the angle of three Grouting Pipes between any two is 120o, material cylinder connects Grouting Pipe by slip casting flexible pipe, and the bottom of Grouting Pipe is provided with nozzle, and the interface of the interface of pulp-absorbing pipe and material cylinder, slip casting flexible pipe and material cylinder is respectively arranged with check valve.Simple in construction, the durable convenience of the present invention, using effect are good.
Description
Technical field
The present invention relates to a kind of filling system, particularly a kind of filling system for cast-in-situ bored pile slip casting.
Background technology
Cast-in-situ bored pile is a kind of most common pile-type, but there is stake side mud be present in cast-in-situ bored pile application process
Figure for shadow-play rings side resistance and played, and due to using in Grouting Pipe bottom side or slip casting bottom of the tube, the method for setting grouting port, slurries are from note
After starching mouth outflow, by the free-flowing of slurries, pile bottom sediment is reinforced, but because stake bottom such as is uneven at the reason, slurry
Liquid stream is dynamic to be often truncated, it is impossible to which reaching needs the position of slip casting, causes a bottom the unguyed sediment in part to be present, influences end and rents hair
Wave, because the problems such as construction level difference, sediment thickness difference and geological conditions part difference causes same building site large area engineering
Pile vertical carrying capacity dispersed problem may result in the differential settlement of multi-column pier foundation, volume contraction after pile concrete consolidation,
Gap is produced between pile concrete and borehole wall and causes pile side resistance to reduce, slip casting is interrupted, grout, jam of grouting pipe,
The problem of slurries are lost in, in view of the above-mentioned problems, some filling systems are developed, but existing system is mostly complicated,
Operation inconvenience.
The content of the invention
It is an object of the invention to provide the good filling system of a kind of convenience simple in construction, durable, using effect.For reality
Existing above-mentioned purpose, the technical scheme is that：
A kind of filling system, including hydraulic cylinder, material cylinder, slurry pool, support and hydraulic pump, described hydraulic cylinder and material cylinder water
Placing flat is on support, and the front end connection hydraulic pump of hydraulic cylinder, the rear end connection material cylinder of hydraulic cylinder, hydraulic cylinder in material cylinder with distinguishing
Provided with piston and back-up ring, the piston in hydraulic cylinder is connected with the piston in material cylinder by piston rod, and the rear end of described material cylinder is set
Slurry pool is equipped with, is attached between material cylinder and slurry pool by pulp-absorbing pipe, steel reinforcement cage, described steel reinforcement cage are arranged at the bottom of material cylinder
It is placed in the soil body, steel reinforcement cage is formed by Grouting Pipe and binding reinforcing bars, and steel reinforcement cage placed inside has three Grouting Pipes, three Grouting Pipes
Angle between any two is 120o, for material cylinder by slip casting flexible pipe connection Grouting Pipe, the bottom of Grouting Pipe is provided with nozzle, pulp-absorbing pipe
The interface of interface, slip casting flexible pipe and material cylinder with material cylinder is respectively arranged with check valve.
Further, wireless launcher and pressure sensor are mounted on described back-up ring, when pressure sensor is examined
When measuring the contact of piston and back-up ring, wireless launcher transmitting wireless signal, hydraulic pump is received after wireless signal i.e.
Change piston movement direction.
Further, described slip casting flexible pipe uses PVC plastic with material cylinder junction, slip casting flexible pipe and Grouting Pipe junction
Band and wrapping linear sealing.
Further, the material used in described Grouting Pipe is cast iron.
Further, described Grouting Pipe equal injected hole at pipe range 1/3, at 2/3 and at 5/6 from top to bottom, often place set
It is of five storeys, every layer of 4 injected hole are provided with protective layer in the outside of injected hole, and described protective layer is twined by non-woven fabrics and wrapping line
Around slip casting tube wall formed, filter screen is installed on the top of every place's injected hole, check valve is installed in injected hole.
Further, described check valve center is provided with cone-shaped hole, cone angle 45o, the side of cone-shaped hole is set
There is baffle plate, opposite side is provided with magnet, the valve element of cone is provided with cone-shaped hole, the material of valve element is cast iron.
Further, two through holes are provided between described valve element and check valve, the angle between two through holes is 90o,
Rubber band is mounted with through hole.
Further, the center of described nozzle is provided with cylindrical direct projection jet pipe, and the surrounding of cylindrical direct projection jet pipe is uniform
The cylindrical centrifugal jet pipe of four closed upper parts is dispersed with, is passed through between cylindrical direct projection jet pipe and each cylindrical centrifugal jet pipe
Two cylindrical conduits are connected, and the bottom of cylindrical direct projection jet pipe and cylindrical centrifugal jet pipe is equipped with frustum of a cone, and cone angle is
100o, the ratio between the height of frustum of a cone upper bottom surface radius and frustum of a cone is 5:1, it is provided with the center of frustum of a cone bottom surface
The spout of cylinder, the top surface area of spout is the 1/2 of frustum of a cone bottom surface area, passes through screw thread between nozzle and Grouting Pipe
Connection.
Further, the inwall of described cylindrical centrifugal jet pipe and the inwall of cylindrical conduit are tangent, cylindrical centrifugal
The internal diameter of jet pipe is 4 times of the internal diameter of cylindrical conduit.
The present invention is a kind of filling system, and its advantage is：
The present invention carries out slip casting using electrohydraulic control system, and realizes midge and slip casting function by the opening and closing of check valve,
More full liquid control system is simple in construction, and cost is low, easy to control.Using Post Grouting Technique is buried, Grouting Pipe is located inside steel reinforcement cage,
Be advantageous to steel reinforcement cage to transfer in the soil body, the angle of Grouting Pipe between any two is 120o, steel reinforcement cage internal stress is uniformly distributed, is kept away
Exempt from the steel reinforcement cage local collapse caused by steel reinforcement cage local stress is excessive, while can provided with injected hole at Grouting Pipe bottom and pipe side
Slip casting is carried out to stake side and stake bottom to realize, solves the influence of mudcake and sediment to cast-in-situ bored pile intensity, while can solve
Slip casting certainly in construction caused by Grouting Pipe bending or grouting port are blocked is interrupted, grout, slurries losing issue, every layer
Filter screen is provided with above injected hole, slurries can be filtered, the spout of slurry plugs injected hole and nozzle is prevented, every
Protective layer is provided with outside place's injected hole, protective layer can prevent the impurity such as clod, stone from blocking injected hole, pass through opening for check valve
Close to realize midge, slip casting, enormously simplify system.Magnet and rubber band are provided with check valve, utilizes the suction of magnet
Valve element is set to be closed automatically when not by external force with the elastic force of rubber band, valve element is in cone, edge when by larger external force
Cone-shaped hole moves, and realizes midge and slip casting, during traditional slip casting, after slurries outflow grouting port, and by the free-flowing of slurries,
Reach the reinforcing to pile bottom sediment, easily causing a bottom subregion can not be reinforced, and the present invention adopts in the bottom of Grouting Pipe
With nozzle, it can be realized to the effective slip casting of stake end bottom larger area using the method for nozzle spray, realize and stake bottom is sunk
The reinforcing of slag, so as to prevent stake from local sedimentation occurs, the center of nozzle is cylindrical direct projection jet pipe, in cylindrical direct projection jet pipe
Surrounding devises four cylindrical centrifugal jet pipes, passes through two circles between cylindrical direct projection jet pipe and each cylindrical centrifugal jet pipe
Cylindrical conduit connects, and the inwall of cylindrical conduit and the cylindrical centrifugal nozzle wall of upper end closed are tangent, and cylindrical centrifugal
The internal diameter of jet pipe is 4 times of the internal diameter of cylindrical conduit, and the bottom of cylindrical direct projection jet pipe and cylindrical centrifugal jet pipe is equipped with
Frustum of a cone, frustum of a cone are called round platform, cone angle 100o, the ratio between the height of frustum of a cone upper bottom surface radius and frustum of a cone is
5:1, the spout of cylinder is provided with the center of frustum of a cone bottom surface, the top surface area of spout is frustum of a cone bottom surface face
Long-pending 1/2, the discharging speed of slurry can be made to tend towards stability, the slurries into cylindrical centrifugal jet pipe rotate decline, form stream
Body shape, the too fast generation segregation phenomenon of flow velocity will not be caused, will not also be resulted in blockage slowly excessively because of flow velocity, while cylinder can be made
Centrifugation jet pipe and cylindrical direct projection jet pipe reach larger spray angle, and wherein the spray angle of cylindrical centrifugal jet pipe is 90o-
130oBetween, the spray angle of cylindrical direct projection jet pipe is 10o-18oBetween, it is possible to achieve effective injection to stake bottom region, make
Slurries are effectively scattered at stake bottom, improve slip casting area.
Brief description of the drawings
Fig. 1 is a kind of structural representation of filling system of the present invention.
Fig. 2 is a kind of reinforcement cage structure schematic diagram of filling system of the present invention.
Fig. 3 is a kind of Grouting Pipe structural representation of filling system of the present invention.
Fig. 4 is a kind of one-way valve structures schematic diagram of filling system of the present invention.
Fig. 5 is a kind of nozzle arrangements schematic diagram of filling system of the present invention.
Fig. 6 is the structural representation of A-A sections in a kind of Fig. 5 of filling system of the present invention.
In accompanying drawing marked as：1 is hydraulic cylinder, and 2 be piston rod, and 3 be back-up ring, and 4 be material cylinder, and 5 be check valve, and 6 be pulp-absorbing pipe,
7 be slurry pool, and 8 be piston, and 9 be slip casting flexible pipe, and 10 be steel reinforcement cage, and 11 be support, and 12 be PVC plastic band, and 13 be the soil body, and 14 are
Hydraulic pump, 101 be Grouting Pipe, and 1011 be protective layer, and 1012 be injected hole, and 1013 be filter screen, and 1014 be nozzle, and 10141 be to cut
Head circular cone, 10142 be spout, and 10143 be cylindrical conduit, and 10144 be cylindrical direct projection jet pipe, and 10145 be cylindrical centrifugal
Jet pipe, 51 be through hole, and 52 be magnet, and 53 be valve element, and 54 be rubber band, and 55 be baffle plate, and 56 be cone-shaped hole.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description：
As shown in figs 1 to 6, during use hydraulic pump 14 from hydraulic cylinder 1 imbibition press oil, pull hydraulic cylinder 1 in piston 8,
Piston 8 in hydraulic stem 2, material cylinder 4 moves, installed in the baffle plate 55 of pulp-absorbing pipe 6 and the check valve 5 of the interface of material cylinder 4 in material cylinder 4
Side, the material of valve element 53 is cast iron, and the suction of piston 8 overcomes the elastic force of the suction of magnet 52 and rubber band 54 to do work, makes valve element
Gap between 53 hole walls and valve element 53 for passing through from cone-shaped hole 56 to the slurries in the end motion of baffle plate 55, slurry pool 7
It is injected into material cylinder 4, realizes midge.
When the piston 8 in material cylinder 4 moves to the back-up ring 3 in contact material cylinder 4, the pressure sensor installed on back-up ring 3 is examined
Measure the pressure between piston 8 and back-up ring 3 and become big, send electric signal to the wireless launcher installed on back-up ring 3, wireless transmission
Device launches wireless signal, and after hydraulic pump 14 receives wireless signal, imbibition force feed stops, and starts to inject liquid into hydraulic cylinder 1
Force feed, the valve element 53 of the check valve 5 in pulp-absorbing pipe 6 act in the suction of magnet 52, the elastic force of rubber band 54 and slurry pressure
Lower to be closed to away from the end motion of baffle plate 55, check valve 5, midge process terminates, and slip casting process starts.
Steel reinforcement cage 10 is arranged at the bottom of material cylinder 4, and steel reinforcement cage 10 is formed by Grouting Pipe 101 and binding reinforcing bars, and material cylinder 4 passes through
Slip casting flexible pipe 9 connects Grouting Pipe 101, and slip casting flexible pipe 9 uses PVC plastic with Grouting Pipe 101, slip casting flexible pipe 9 and the junction of material cylinder 4
Material strip 12 and wrapping linear sealing, the interface of slip casting flexible pipe 9 and material cylinder 4 are provided with check valve 5, the baffle plate 55 of check valve 5 by
The nearly side of slip casting flexible pipe 9, is also provided with check valve 5, baffle plate 55 is close to the soil body 13 1 on the injected hole 1012 of Grouting Pipe 101
Side, the valve element 53 of check valve 5 passes through cone-shaped hole under the pressure of slurry to close to the lateral movement of baffle plate 55 1, slurries during slip casting
Gap between 56 hole wall and valve element 53 is injected into slip casting flexible pipe 9, and then slurries flow into Grouting Pipe 101 by slip casting flexible pipe 9
In, under the pressure of slurries, the valve element 53 of the check valve 5 in injected hole 1012 passes through cone to motion at baffle plate 55, slurries
Between the hole wall and valve element 53 of through hole 56 gap outflow, realize the slip casting into the soil body 13, due in Grouting Pipe 101 from top to bottom
It is provided with pipe range 1/3, at 2/3 and at 5/6 at three, often locates 5 layers, every layer of 4 injected hole 1012, rather than by injected hole
1012 are positioned only at the ttom of pipe of Grouting Pipe 101, can solve to be made by Grouting Pipe bending or grouting port are blocked in construction
Into slip casting interruption, grout, slurries losing issue, be provided with filter screen 1013 above every layer of injected hole 1012, can be to slurries
Filtered, prevent the spout 10142 of slurry plugs injected hole 1012 and nozzle 1014, be provided with outside every place's injected hole 1012
Protective layer 1011, protective layer 1011 are formed by non-woven fabrics and wrapping line winding Grouting Pipe 101, and protective layer 1011 can prevent
Slurries are flow backwards into injected hole 1012, block injected hole 1012.
When the piston 8 in hydraulic cylinder 1 moves to the back-up ring 3 in contact hydraulic cylinder 1, the pressure sensing installed on back-up ring 3
After device detects that pressure between piston 8 and back-up ring 3 becomes big, to back-up ring 3 on the wireless launcher transmission signal installed, wirelessly
Emitter launches wireless signal, and after hydraulic pump 14 receives wireless signal, fluid injection force feed stops, and starts to inhale from hydraulic cylinder 1
Hydraulic oil, piston 8 and piston rod 2 move to close to the direction of hydraulic pump 14, the valve of check valve 5 at the grouting port of material cylinder 4
Core 53 is closed under the effect of the suction of magnet 52, the elastic force of rubber band 54 and slurry pressure to away from the end motion of baffle plate 55, check valve 5,
Slip casting process terminates, and midge process starts.
In this way, by the continuous reciprocating motion of piston 8 and piston rod 2, continuous midge, slip casting process are realized.
During slip casting, nozzle 1014 is arranged at the bottom of Grouting Pipe 101, and the center of nozzle 1014 is cylindrical direct projection jet pipe
10144, devise four cylindrical centrifugal jet pipes 10145, cylindrical direct projection jet pipe in the surrounding of cylindrical direct projection jet pipe 10144
Connected between 10144 and each cylindrical centrifugal jet pipe 10145 by two cylindrical conduits 10143, from the upper of nozzle 1014
When portion is overlooked, it can be seen that two cylindrical conduits 10143 being connected with each cylindrical centrifugal jet pipe 10145 put coincidence, circle
The inwall of cylindrical centrifugal jet pipe 10145 of the inwall of cylindrical conduit 10143 and upper end closed is tangent, and cylindrical centrifugal jet pipe
10145 internal diameter is 4 times of the internal diameter of cylindrical conduit 10143, cylindrical direct projection jet pipe 10144 and cylindrical centrifugal jet pipe
10145 bottom is equipped with frustum of a cone 10141, cone angle 100o, the upper bottom surface radius and frustum of a cone of frustum of a cone 10141
The ratio between 10141 height is 5:1, the spout 10142 of cylinder, spout are provided with the center of the bottom surface of frustum of a cone 10141
10142 top surface area is the 1/2 of the bottom surface area of frustum of a cone 10141, and the discharging speed of slurry can be made to tend towards stability, entered
The slurries rotation for entering cylindrical centrifugal jet pipe 10145 declines, and forms flow-like, will not cause the too fast generation segregation phenomenon of flow velocity,
Also it will not slowly be resulted in blockage excessively because of flow velocity, while cylindrical centrifugal jet pipe 10145 and cylindrical direct projection jet pipe 10144 can be made
Reach larger spray angle, it is possible to achieve effective injection to stake bottom region, make slurries effectively scattered at stake bottom, improve slip casting
Area.
Embodiment described above, simply presently preferred embodiments of the present invention, not limits the scope of the present invention, therefore
The equivalent change or modification that all construction, feature and principles according to described in the scope of the invention are done, all should be included in the present patent application
In the scope of the claims.
Claims (8)
1. a kind of filling system, including hydraulic cylinder（1）, material cylinder（4）, slurry pool（7）, support（11）And hydraulic pump（14）, it is special
Sign is, described hydraulic cylinder（1）With material cylinder（4）Lie in a horizontal plane in support（11）On, hydraulic cylinder（1）Front end connection hydraulic pump
（14）, hydraulic cylinder（1）Rear end connection material cylinder（4）, hydraulic cylinder（1）With material cylinder（4）In be respectively equipped with piston（8）And back-up ring（3）,
Hydraulic cylinder（1）In piston（8）And material cylinder（4）In piston（8）Pass through piston rod（2）It is connected, described material cylinder（4）Rear end
It is provided with slurry pool（7）, material cylinder（4）And slurry pool（7）Between pass through pulp-absorbing pipe（6）It is attached, material cylinder（4）Bottom have steel
Muscle cage（10）, described steel reinforcement cage（10）It is placed in the soil body（13）In, steel reinforcement cage（10）By Grouting Pipe（101）With binding reinforcing bars shape
Into steel reinforcement cage（10）Placed inside has three Grouting Pipes（101）, three Grouting Pipes（101）Angle between any two is 120o, material
Cylinder（4）Pass through slip casting flexible pipe（9）Connect Grouting Pipe（101）, Grouting Pipe（101）Bottom nozzle is installed（1014）, pulp-absorbing pipe
（6）With material cylinder（4）Interface, slip casting flexible pipe（9）With material cylinder（4）Interface be respectively arranged with check valve（5）；
Described nozzle（1014）Center be provided with cylindrical direct projection jet pipe（10144）, cylindrical direct projection jet pipe（10144）Four
It is uniform-distribution with the cylindrical centrifugal jet pipe of four closed upper parts week（10145）, cylindrical direct projection jet pipe（10144）With each circle
Cylindricality centrifuges jet pipe（10145）Between pass through two cylindrical conduits（10143）It is connected, cylindrical direct projection jet pipe（10144）With
Cylindrical centrifugal jet pipe（10145）Bottom be equipped with frustum of a cone（10141）, cone angle 100o, frustum of a cone（10141）'s
Upper bottom surface radius and frustum of a cone（10141）The ratio between height be 5:1, frustum of a cone（10141）Set at the center of bottom surface
There is the spout of cylinder（10142）, spout（10142）Top surface area be frustum of a cone（10141）The 1/2 of bottom surface area,
Nozzle（1014）And Grouting Pipe（101）Between be connected through a screw thread.
A kind of 2. filling system according to claim 1, it is characterised in that described back-up ring（3）On wireless hair is installed
Injection device and pressure sensor, when pressure sensor detects piston（8）With back-up ring（3）Contact when, wireless transmission dress
Put transmitting wireless signal, hydraulic pump（14）Change piston after receiving wireless signal（8）The direction of motion.
A kind of 3. filling system according to claim 1, it is characterised in that described slip casting flexible pipe（9）With material cylinder（4）Even
Connect place, slip casting flexible pipe（9）With Grouting Pipe（101）Use PVC plastic band in junction（12）With wrapping linear sealing.
A kind of 4. filling system according to claim 1, it is characterised in that described Grouting Pipe（101）Material used
For cast iron.
A kind of 5. filling system according to claim 1, it is characterised in that described Grouting Pipe（101）Exist from top to bottom
Injected hole is equipped with pipe range 1/3, at 2/3 and at 5/6（1012）, often place be of five storeys, every layer has 4 injected holes（1012）, noting
Starch hole（1012）Outside be provided with protective layer（1011）, described protective layer（1011）It is by non-woven fabrics and wrapping line winding slip casting
Pipe（101）What tube wall was formed, in every place's injected hole（1012）Top filter screen is installed（1013）, injected hole（1012）Middle installation
There is check valve（5）.
A kind of 6. filling system according to claim 1, it is characterised in that described check valve（5）Center is provided with circular cone
Shape through hole（56）, cone angle 45o, cone-shaped hole（56）Side be provided with baffle plate（55）, opposite side is provided with magnet（52）, circle
Conical through-hole（56）In be provided with cone valve element（53）, described valve element（53）Material be cast iron.
A kind of 7. filling system according to claim 6, it is characterised in that described valve element（53）With check valve（5）It
Between be provided with two through holes（51）, two through holes（51）Between angle be 90o, through hole（51）In be mounted with rubber band
（54）.
A kind of 8. filling system according to claim 1, it is characterised in that described cylindrical centrifugal jet pipe（10145）
Inwall and cylindrical conduit（10143）Inwall it is tangent, cylindrical centrifugal jet pipe（10145）Internal diameter be cylindrical conduit
（10143）4 times of internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223247.9A CN105862869B (en) | 2016-04-12 | 2016-04-12 | A kind of filling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223247.9A CN105862869B (en) | 2016-04-12 | 2016-04-12 | A kind of filling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105862869A CN105862869A (en) | 2016-08-17 |
| CN105862869B true CN105862869B (en) | 2017-12-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610223247.9A Expired - Fee Related CN105862869B (en) | 2016-04-12 | 2016-04-12 | A kind of filling system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551918A (en) * | 2017-10-31 | 2018-01-09 | 天津科创复兴科技咨询有限公司 | A kind of twin-tub swing type fluid foods mixing arrangement |
| CN108385690B (en) * | 2018-04-13 | 2023-09-05 | 薛一 | Annular mud jacking distributor and mud jacking system |
| CN110656666B (en) * | 2019-10-15 | 2021-06-08 | 汶上县永丰机械有限公司 | Small high-pressure jet grouting cement pile machine for test and construction method thereof |
| CN111364455B (en) * | 2020-03-12 | 2022-04-22 | 咸宁职业技术学院 | Grouting device for anchor connection of spiral stirrup of assembly member |
| CN111706361A (en) * | 2020-06-04 | 2020-09-25 | 中铁大桥勘测设计院集团有限公司 | Steel frame back filling equipment in tunnel and construction method thereof |
| CN112538850B (en) * | 2020-12-03 | 2022-10-04 | 中建市政工程有限公司 | Device and method suitable for advanced grouting of pipe gallery for tree protection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525271Y (en) * | 2001-06-07 | 2002-12-11 | 黄循锦 | Pneumatic plunger mortar grouting pump and mixing machine and automatic mortar mixing and grouting equipment |
| CN2522178Y (en) * | 2001-11-26 | 2002-11-27 | 郑程玉 | Low-pressure centrifugal atomizing apparatus |
| CN1226491C (en) * | 2003-10-30 | 2005-11-09 | 北京城建集团有限责任公司 | Post mudjack construction technics for sidewal and bottom of bore of filling pile |
| DE102004015415A1 (en) * | 2004-03-26 | 2005-10-13 | Putzmeister Ag | Device and method for controlling a two-cylinder slurry pump |
| CN201090421Y (en) * | 2007-09-21 | 2008-07-23 | 郑州知信机电科技开发有限公司 | Scaling ratio stepless regulating device for double-cylinder and double-liquid mud-injection pump |
| CN201192691Y (en) * | 2008-04-30 | 2009-02-11 | 陈奕 | Air exhausting device |
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2016
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| CN105862869A (en) | 2016-08-17 |
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