CN106835883A - A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation - Google Patents
A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation Download PDFInfo
- Publication number
- CN106835883A CN106835883A CN201710170584.0A CN201710170584A CN106835883A CN 106835883 A CN106835883 A CN 106835883A CN 201710170584 A CN201710170584 A CN 201710170584A CN 106835883 A CN106835883 A CN 106835883A
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- Prior art keywords
- jack
- drilling
- static pressure
- self
- lower margin
- Prior art date
- 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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- 238000005553 drilling Methods 0.000 title claims abstract description 53
- 238000005056 compaction Methods 0.000 title claims abstract description 20
- 230000003068 static effect Effects 0.000 title claims abstract description 18
- 230000007547 defect Effects 0.000 title claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000002828 fuel tank Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 201000010099 disease Diseases 0.000 abstract description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Agronomy & Crop Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation, belong to subgrade strengthening field, with low, the big problem of hand labor intensity that solves device efficiency used in the construction of existing railroad bed settlement Disease Treatment.It includes stride moving device, hydraulic lifting apparatus, drilling equipment, compacted device, compacted device includes that jack, jack lengthen frame, threaded mandrel, concrete clamping housing, buckle, the front end of jack is connected with threaded mandrel, the rear end of jack lengthens frame equipped with jack, concrete clamping housing is disposed on the axis direction of threaded mandrel, concrete block is provided with concrete clamping housing, concrete block passes through snap-lock；Drilling rod and jack diameter parallel between the two are in horizontal plane.The present invention is not only able to realize that level is compacted, and it is compacted to complete the compaction pile of certain angle；Compacted device is easy to movement, and mobility strong, efficiency of construction is high；Operation is more quick and laborsaving, and the normal operation of route is not influenceed.
Description
Technical field
The invention belongs to subgrade strengthening field, and in particular to a kind of horizontal static pressure compaction equipment.
Background technology
Used as a kind of important transportation trade, railway carries critically important role, with the increase of traffic pressure
And the raising of railway traffic rate request, there are various forms of foundation instability phenomenons in original railway bed, according to railway
The special geologic condition and environmental aspect of route, at present, existing large-scale horizontal directional drill has unworthiness, in existing iron
Device efficiency used in the construction of road subgrade settlement Disease Treatment is low, and hand labor intensity is big, a series of problems, such as, in level
There is no complete equipment to realize the filling to roadbed soil body compactness on direction.Traditional hammering, vibrations are to the normal of railway line
Influence on system operation can produce track side offset distance excessive, and then cause danger than larger.
The content of the invention
It is an object of the invention to provide a kind of existing line subgrade defect regulation the horizontal static pressure compaction equipment of self-drilling type, with
The device efficiency solved used in existing railroad bed settlement Disease Treatment construction is low, the big problem of hand labor intensity.
Technical solution of the present invention is as follows：A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation,
Including stride moving device, hydraulic lifting apparatus, drilling equipment, compacted device, the working face of stride moving device is provided with liquid
Pressure lifting device, hydraulic lifting apparatus top is provided with compacted device, and compacted device top is provided with drilling equipment；Drilling equipment includes
Drilling rod, unit head guide rail, power chain, unit head, unit head guide rail are provided with power chain, and power chain is provided with power
Head, drilling rod is located in unit head；Compacted device includes that jack, jack lengthen frame, threaded mandrel, concrete clamping housing, buckle,
The front end of jack is connected with threaded mandrel, and the rear end of jack lengthens frame equipped with jack, on the axis direction of threaded mandrel
Placement concrete clamping housing, concrete block is provided with concrete clamping housing, and concrete block passes through snap-lock；Drilling rod and jack axle between the two
Line is parallel to horizontal plane.Compacted device realizes horizontal static pressure compaction.Drilling rod is horizontal power head drilling rod and height adjustable.Concrete block leads to
Snap-lock is crossed, facilitates the lifting and installation of concrete block, and conventional art needs a dead lift.
As a further improvement on the present invention, the drill rod end has been provided with hydraulic gripper.For holding drill pipe, prevent
Sideslip during drilling.
As a further improvement on the present invention, the end of unit head guide rail is provided with the firm cushion block of thrust, and thrust consolidates cushion block
The top of housing is clamped positioned at concrete.Protection following device can be played during drilling and keeps the hole soil body to loosen.
As a further improvement on the present invention, the hydraulic lifting apparatus include afterbody balancing cylinder, support arm hydraulic oil
The bottom of cylinder, support arm, afterbody balancing cylinder and support arm hydraulic jack is fixed on working face by oil cylinder hinge respectively, tail
The upper end of portion's balancing cylinder and support arm hydraulic jack lengthens frame chain connection with jack.
As a further improvement on the present invention, it also includes lower margin fixing device, and lower margin fixing device is fixed by flange
On the corner of working face, lower margin fixing device includes screw thread lower margin, support lower margin, and screw thread lower margin is located at
The top of working face, support lower margin is located at the lower section of working face.
As a further improvement on the present invention, motor is provided with below working face, motor is by transmission device and branch
Support lower margin connection, transmission device includes power transmission shaft, first bevel gear, second bevel gear, and motor is connected with transmission shafts, is driven
Axle is bonded by first and connects first bevel gear, and the gear teeth of first bevel gear are meshed with the gear teeth of second bevel gear, the second cone tooth
Wheel is bonded by second and connects support lower margin.
As a further improvement on the present invention, the second bevel gear is provided with thrust bearing.
As a further improvement on the present invention, the chassis of the stride moving device is provided with fuel tank and hydraulic pump, fuel tank
Connected by petroleum pipeline with hydraulic pump.
As a further improvement on the present invention, the buckle is made up of box, pin thread and handle, and box is with pin thread activity even
Connect, pin thread is connected with handle.
Feature of the present invention is as follows：（1）Traditional compacted equipment is to be had openning hole with another equipment in advance, the drilling of this equipment
Device and compacted device are located in same equipment, and collection drilling is installed on one with compacted, uses electrical control hydraulic lifting apparatus
Compacting pile construction is realized, and operating attitude can be adjusted flexibly；（2）The present invention is not only able to realize that level is compacted, and can
Completion has the compaction pile of certain angle compacted；Compacted device is easy to movement, and mobility strong, efficiency of construction is high；Operation is more quick
With it is laborsaving, the normal operation of route is not influenceed.（3）The complicated landform of downline is coped with stride moving device, and ingeniously
The wonderful reaction force using the customer service that rubs during compacted；（4）Lower margin utilizes bevel gear mechanism precession ground, enhances and overcomes anti-
The function of active force, and lower margin can lengthen.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of buckle in the present invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structural representation of concrete clamping housing in the present invention；
Fig. 6 is the structural representation of lower margin fixing device in the present invention.
Reference implication is as follows：1- motor, 2- flanges, 3- screw thread lower margins, 4- hydraulic pumps, 5- oil cylinder hinges, 6- oil
Case, 7- petroleum pipelines, 8- afterbody balancing cylinders, 10- unit head guide rails, 11- power chains, 12- jack lengthen frame, and 13- is very heavy
Top, 14- unit heads, 15- drilling rods, 16- hydraulic grippers, 17- thrusts consolidate cushion block, and 18- concretes clamp housing, 19- threaded mandrels,
20- buckles, 22- support arms, 23- control sticks, 24- support arm hydraulic jacks, 25- stride moving devices, 26- support lower margins, 27-
Pedal, 28- consoles, 29- electronic boxs, 31- tool boxes, 32- handles, 33- pin threads, 34- boxes, 37- first bevel gears, 40-
Lower margin fixing device, 41- thrust bearings, 42- second bevel gears, the keys of 431- first, the keys of 432- second, 44- power transmission shafts, 45-
One concrete block, 46- the second concrete blocks, 101- working faces.
Specific embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
As illustrated, working face 101 is provided with console 28, electronic box 29, tool box 31, console 28 is provided with control stick
23, the sidepiece of working face 101 is provided with pedal 27.
As illustrated, a kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation, it includes stride
Moving device 25, hydraulic lifting apparatus, drilling equipment, compacted device, the working face 101 of stride moving device 25 are provided with hydraulic pressure
Lifting device, hydraulic lifting apparatus top is provided with compacted device, and compacted device top is provided with drilling equipment；Drilling equipment includes boring
Bar 15, unit head guide rail 10, power chain 11, unit head 14, unit head guide rail 10 are provided with power chain 11, power chain 11
Unit head 14 is provided with, drilling rod 15 is located in unit head 14；Compacted device includes that jack 13, jack lengthens frame 12, screw thread
Push rod 19, concrete clamping housing 18, buckle 20, the front end of jack 13 are connected with threaded mandrel 19, and the rear end of jack 13 is equipped with
Jack lengthens frame 12, and concrete clamping housing 18 is disposed on the axis direction of threaded mandrel 19, and concrete block is provided with concrete clamping housing 18,
Concrete block is locked by buckle 20；Drilling rod 15 and jack (13) diameter parallel between the two are in horizontal plane.Jack and drilling rod
On same straight line, for the height of landform, realize that drilling rod and jack move up and down alignment hole position, it is maximized to subtract
Small perpendicularity deviation increases substantially construction quality the influence produced by compacting pile construction quality.
The end of drilling rod 15 has been provided with hydraulic gripper 16.The end of unit head guide rail 10 is provided with the firm cushion block 17 of thrust, pushes away
The firm cushion block 17 of power is located at the top that concrete clamps housing 18.
Hydraulic lifting apparatus include afterbody balancing cylinder 8, support arm hydraulic jack 24, support arm 22, afterbody balancing cylinder 8
Bottom with support arm hydraulic jack 24 is fixed on working face 101 by oil cylinder hinge 5 respectively, afterbody balancing cylinder 8 and branch
The upper end of brace hydraulic jack 24 lengthens the chain connection of frame 12 with jack.
It also includes lower margin fixing device 40, and lower margin fixing device 40 is fixed on working face 101 by flange 2
On corner, lower margin fixing device 40 includes screw thread lower margin 3, support lower margin 26, and screw thread lower margin 3 is located at the upper of working face 101
Side, support lower margin 26 is located at the lower section of working face 101.
The chassis of stride moving device 25 is provided with fuel tank 6 and hydraulic pump 4, and fuel tank 6 and hydraulic pump 4 are connected by petroleum pipeline 7
Connect.Stride moving device ensure that the whole movement of equipment.
Drilling rod completes the drilling of pilot hole, and horizontal static pressure compaction process is realized by jack 13 by pilot hole.In work
Using the horizontal friction force produced by stride moving device 25 and ground come counteracting counterforce during work, in this, as compacted
The main reaction force source of device and drilling rod 15.
Hydraulic gripper 16 determines fixed-direction, and easy to disassemble, using the hydraulic lifting apparatus and power of itself institute's band
Chain 11 completes boring procedure.
As shown in Figure 3-Figure 5, buckle 20 is made up of box 34, pin thread 33 and handle 32, and box 34 is with the activity of pin thread 33 even
Connect, pin thread 33 is connected with handle 32.Fig. 3, Fig. 4 show that concrete block fixes the structure of bayonet socket, and Fig. 5 shows concrete clamping housing
Structure, i.e. concrete block locking state.Buckle is realized and uses quick-clamping to drilling rod, is clamped and release without artificial.When handle position
When a positions, the locking concrete block of buckle 20, when b positions are turned to by a, handle 32 promotes pin thread 33 and box 34 to depart from.
Fig. 6 shows the structure of lower margin fixing device,The lower section of working face 101 is provided with motor 1, and motor 1 is by passing
Dynamic device is connected with support lower margin 26.Transmission device includes power transmission shaft 44, first bevel gear 37, second bevel gear 42, motor 1
It is connected with the axle of power transmission shaft 44, power transmission shaft 44 connects first bevel gear 37, the gear teeth of first bevel gear 37 and the by the first key 431
The gear teeth of two bevel gears 42 are meshed, and second bevel gear 42 connects support lower margin 26 by the second key 432.In second bevel gear 42
It is provided with thrust bearing 41.Transmission device changes the direction that motor 1 produces torque, and thrust bearing 41 bears axial force.Work
The upper and lower surface for making platform uses flange 2 to reinforce to overcome shearing force, realizes whole to the resistant function of horizontal reacting force and holding
The balance of individual fuselage.
The course of work is as follows：
（1）, by stride walking mechanism 25, whole equipment reaches construction location, adjusts the whole operating position of equipment, propping up
Support lower margin 26 is connected on screw thread lower margin 3 above and fastens, and manipulates control stick 23 and causes that motor 1 works, and motor 1 drives power transmission shaft
44 rotate, and then drive first bevel gear 37, drive second bevel gear 42 to rotate by the engagement of tooth, when 42 turns of second bevel gear
When dynamic, drive support lower margin 26 to screw in underground completion lower margin by the connection of the second key 432 and fix.
（2）, hydraulic lifting apparatus are started by electronic box 29, hydraulic pump 4 started working, and the hydraulic oil of the inside of fuel tank 6 is led to
Cross petroleum pipeline 7 and be retracted to afterbody balancing cylinder 8 and support arm hydraulic jack（24）, manipulation bar 23 is so that the height of support arm 22
Rise, the cental axial position alignment of drilling rod 15 is surveyed into measured height, manipulation bar 23, the propulsion power of power chain 11 in advance
First 14 advance along unit head guide rail 10 to working face, meanwhile, the radially fixed drilling rod 15 of hydraulic gripper 16, so as to drive drilling rod 15
Advance, complete throwing into for bullport.Drilling rod is reversely screwed out by control stick.
（3）, afterbody balancing cylinder 8 and support arm hydraulic jack changed by control stick（24）Height, and then change thousand
The position of the bullport that the central axial alignment on jin top 13 has been held successfully, the extruding of the first concrete block 45 is entered, and descending jack highly, will
Second concrete block 46 is fitted into concrete clamping housing 18, is locked with buckle 20, rises jack position to operating position, hands over silk to consolidate with steel
Determine concrete block, unclamp buckle, operation carries out axial feed, completes the extruding of the second concrete block 46, repeats operation.
Claims (9)
1. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect is renovated, it is characterised in that：It includes stride
Moving device（25）, hydraulic lifting apparatus, drilling equipment, compacted device, stride moving device（25）Working face（101）On set
There are hydraulic lifting apparatus, hydraulic lifting apparatus top is provided with compacted device, and compacted device top is provided with drilling equipment；
Drilling equipment includes drilling rod（15）, unit head guide rail（10）, power chain（11）, unit head（14）, unit head guide rail
（10）It is provided with power chain（11）, power chain（11）It is provided with unit head（14）, drilling rod（15）Positioned at unit head（14）In；
Compacted device includes jack（13）, jack lengthen frame（12）, threaded mandrel（19）, concrete clamping housing（18）, buckle
（20）, jack（13）Front end be connected with threaded mandrel（19）, jack（13）Rear end equipped with jack lengthen frame（12）,
Threaded mandrel（19）Axis direction on dispose concrete clamping housing（18）, concrete clamping housing（18）In be provided with concrete block, concrete block passes through
Buckle（20）Locking, drilling rod（15）With jack (13) diameter parallel between the two in horizontal plane.
2. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 1 is renovated, its
It is characterised by：The drilling rod（15）End has been provided with hydraulic gripper（16）.
3. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 1 and 2 is renovated,
It is characterized in that：Unit head guide rail（10）End be provided with the firm cushion block of thrust（17）, thrust consolidates cushion block（17）Positioned at concrete folder
Hold housing（18）Top.
4. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 3 is renovated, its
It is characterised by：The hydraulic lifting apparatus include afterbody balancing cylinder（8）, support arm hydraulic jack（24）, support arm（22）, tail
Portion's balancing cylinder（8）With support arm hydraulic jack（24）Bottom respectively pass through oil cylinder hinge（5）It is fixed on working face（101）
On, afterbody balancing cylinder（8）With support arm hydraulic jack（24）Upper end and jack lengthen frame（12）Chain connection.
5. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 4 is renovated, its
It is characterised by：It also includes lower margin fixing device（40）, lower margin fixing device（40）By flange（2）It is fixed on working face
（101）Corner on, lower margin fixing device（40）Including screw thread lower margin（3）、
Support lower margin（26）, screw thread lower margin（3）Positioned at working face（101）Top, support lower margin（26）Positioned at working face（101）
Lower section.
6. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 5 is renovated, its
It is characterised by：Working face（101）Lower section be provided with motor（1）, motor（1）By transmission device and support lower margin（26）Even
Connect, transmission device includes power transmission shaft（44）, first bevel gear（37）, second bevel gear（42）, motor（1）With power transmission shaft（44）
Axle is connected, power transmission shaft（44）By the first key（431）Connection first bevel gear（37）, first bevel gear（37）The gear teeth and second
Bevel gear（42）The gear teeth be meshed, second bevel gear（42）By the second key（432）Connection support lower margin（26）.
7. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 6 is renovated, its
It is characterised by：The second bevel gear（42）It is provided with thrust bearing（41）.
8. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 7 is renovated, its
It is characterised by：The stride moving device（25）Chassis be provided with fuel tank（6）And hydraulic pump（4）, fuel tank（6）And hydraulic pump
（4）By petroleum pipeline（7）Connection.
9. the horizontal static pressure compaction equipment of self-drilling type that a kind of existing line subgrade defect according to claim 8 is renovated, its
It is characterised by：The buckle（20）By box（34）, pin thread（33）And handle（32）Composition, box（34）With pin thread（33）Activity
Connection, pin thread（33）With handle（32）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170584.0A CN106835883A (en) | 2017-03-21 | 2017-03-21 | A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170584.0A CN106835883A (en) | 2017-03-21 | 2017-03-21 | A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106835883A true CN106835883A (en) | 2017-06-13 |
Family
ID=59130403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710170584.0A Pending CN106835883A (en) | 2017-03-21 | 2017-03-21 | A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation |
Country Status (1)
| Country | Link |
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| CN (1) | CN106835883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441352A (en) * | 2020-04-26 | 2020-07-24 | 长沙炙夏机电科技有限公司 | Compaction pile construction device and method |
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| CN1948700A (en) * | 2006-10-25 | 2007-04-18 | 贺德新 | Rotary excavating extruding expanding drilling machine and its working method |
| CN102561349A (en) * | 2012-02-09 | 2012-07-11 | 安徽力达实业股份有限公司 | Multifunctional static pile press |
| CN203569566U (en) * | 2013-11-15 | 2014-04-30 | 杭州南联土木工程科技有限公司 | Large-dip-angle multifunctional piling machine |
| WO2015100688A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Hydrostatic pile driver of full-stroke hole guiding type |
| CN105780776A (en) * | 2016-05-12 | 2016-07-20 | 河北新钻钻机有限公司 | Steel pipe pile rotary extrusion construction facility |
| CN206680821U (en) * | 2017-03-21 | 2017-11-28 | 中铁西北科学研究院有限公司 | A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation |
-
2017
- 2017-03-21 CN CN201710170584.0A patent/CN106835883A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948700A (en) * | 2006-10-25 | 2007-04-18 | 贺德新 | Rotary excavating extruding expanding drilling machine and its working method |
| CN102561349A (en) * | 2012-02-09 | 2012-07-11 | 安徽力达实业股份有限公司 | Multifunctional static pile press |
| CN203569566U (en) * | 2013-11-15 | 2014-04-30 | 杭州南联土木工程科技有限公司 | Large-dip-angle multifunctional piling machine |
| WO2015100688A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Hydrostatic pile driver of full-stroke hole guiding type |
| CN105780776A (en) * | 2016-05-12 | 2016-07-20 | 河北新钻钻机有限公司 | Steel pipe pile rotary extrusion construction facility |
| CN206680821U (en) * | 2017-03-21 | 2017-11-28 | 中铁西北科学研究院有限公司 | A kind of horizontal static pressure compaction equipment of self-drilling type of existing line subgrade defect regulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441352A (en) * | 2020-04-26 | 2020-07-24 | 长沙炙夏机电科技有限公司 | Compaction pile construction device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |