CN105604008A - Manufacturing equipment of circular-arch-shaped plugging T-shaped piles - Google Patents
Manufacturing equipment of circular-arch-shaped plugging T-shaped piles Download PDFInfo
- Publication number
- CN105604008A CN105604008A CN201610088796.XA CN201610088796A CN105604008A CN 105604008 A CN105604008 A CN 105604008A CN 201610088796 A CN201610088796 A CN 201610088796A CN 105604008 A CN105604008 A CN 105604008A
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- Prior art keywords
- pile
- driving
- rectangular
- driving box
- concrete
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1607—Shapes round, e.g. circle
- E02D2200/1614—Shapes round, e.g. circle made from single element
Abstract
The invention provides manufacturing equipment of circular-arch-shaped plugging T-shaped piles. A plurality of concrete cylindrical piles, which are arranged at an interval of one rectangular pile, are manufactured; when the concrete of the concrete cylindrical piles on the two sides reaches certain strength, one concrete rectangular pile is manufactured in the distance between every two cylindrical piles through a rectangular pile pile-forming machine by adopting a working manner that the concrete rectangular piles are manufactured by the rectangular pile pile-forming machine, so that concave circular arcs at the left and right ends of each concrete rectangular pile are matched with the outer circles of the concrete cylindrical piles at the left and right ends respectively; and one cement rectangular pile is manufactured at the front part of each cylindrical pile through the rectangular pile pile-forming machine by adopting a working manner that the cement rectangular piles are manufactured by the rectangular pile pile-forming machine, so that the rear end circular arcs of the cylindrical piles at the front parts are matched with the outer circles of the cylindrical piles; and furthermore, a T-pile pile wall is formed by the plurality of T-shaped piles which are in mutual circular-arc-shaped plugging, and is used for soil stopping and leakage prevention of a building foundation.
Description
Technical field
The present invention relates to a kind of circular arc and plug together equipment, the circular arc of the manufacture T stake particularly using in a kind of foundation engineering plugs together T stake manufacturing equipment.
Background technology
Soil cement pile-formation machine is to rotate by the multiple drill bits of power drive, multiple drill bits stir into cement earth pile by the earth cutting of drill bit bottom with cement mortar in rotation process, at present, be all to form by multiple soil cement cylinders overlap joints for the cement-soil pile of the consolidation process of weak base foundation.
Summary of the invention
The present invention has made up above shortcoming, provides a kind of and can manufacture the circular arc that rectangular pile and cylinder pile circular arc plug together and plug together T stake manufacturing equipment.
The present invention is achieved through the following technical solutions:
The circular arc that the mutual circular arc of rectangular pile and cylinder pile plugs together plugs together a T stake manufacturing equipment, comprises rectangular pile pile-formation machine and cylinder pile pile-formation machine.
Rectangular pile pile-formation machine comprises following structure: creep into bar lower end and be fixed on motor one upper end, driving box three upper ends are fixed in motor one lower end; Creep into bar bottom left end and be fixed with transverse arm one, the left end bottom of transverse arm one is fixed with armstand one, and the lower end of armstand one is fixed with driving box one, creeps into bar bottom right-hand member and is fixed with transverse arm two, the right-hand member bottom of transverse arm two is fixed with armstand two, and the lower end of armstand two is fixed with driving box two; The lower end of driving box one, driving box two, driving box three is respectively equipped with a drilling rod one, and the lower end of each drilling rod one is respectively equipped with a drill bit one; Between driving box three and driving box one, be respectively equipped with a driving shaft one between driving box three and driving box two, a linking arm is fixed respectively on the middle both sides of every driving shaft one, and the outer end of each linking arm is fixed respectively one and stirred cutter; A driving shaft two is exported respectively in the right back of driving box two and right front, and the right-hand member of this each driving shaft two is fixed respectively a recessed dise knife; A driving shaft two is exported respectively in the left back of driving box one and left front, and the right-hand member of this each driving shaft two is fixed respectively a recessed dise knife.
Cylinder pile pile-formation machine comprises following structure: the upper end of the lower end fixed motor two of drilling rod two, the output shaft of motor two lower ends is fixed with drill bit two.
The present invention has following feature:
The present invention can manufacture the pile body that concrete rectangular stake and concrete circular stanchion circular arc plug together, for gear soil, the antiseep of building foundation.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is the front view of rectangular pile pile-formation machine;
Fig. 2 is A-A view of Fig. 1;
Fig. 3 is the front view of cylinder pile pile-formation machine;
Fig. 4 is the cross-sectional view that rectangular pile and cylinder pile circular arc plug together.
In figure: 1, creep into bar, 2, motor one, 3, driving box three, 4, driving box one, 5, driving box two, 6, transverse arm one, 7, transverse arm two, 8, driving shaft one, 9, stir cutter, 10, armstand one, 11, armstand two, 12, drilling rod one, 13, drill bit one, 14, driving shaft two, 15, recessed dise knife, 16, linking arm, 21, drilling rod two, 22, motor two, 23, drill bit two.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention, and this embodiment comprises rectangular pile pile-formation machine and cylinder pile pile-formation machine.
Rectangular pile pile-formation machine comprises the structure in Fig. 1, Fig. 2; Concrete structure is as follows: creep into bar 1 lower end and be fixed on motor one 2 upper ends, driving box 33 upper ends are fixed in motor one lower end; Creep into bar bottom left end and be fixed with transverse arm 1, the left end bottom of transverse arm one is fixed with armstand 1, and the lower end of armstand one is fixed with driving box 1, creeps into bar bottom right-hand member and is fixed with transverse arm 27, the right-hand member bottom of transverse arm two is fixed with armstand 2 11, and the lower end of armstand two is fixed with driving box 25; The lower end of driving box one, driving box two, driving box three is respectively equipped with a drilling rod 1, and the lower end of each drilling rod one is respectively equipped with a drill bit 1; Between driving box three and driving box one, be respectively equipped with a driving shaft 1 between driving box three and driving box two, a linking arm 16 is fixed respectively on the middle both sides of every driving shaft one, and the outer end of each linking arm is fixed respectively one and stirred cutter 9; A driving shaft 2 14 is exported respectively in the right back of driving box two and right front, and the right-hand member of this each driving shaft two is fixed respectively a recessed dise knife 15; A driving shaft 2 14 is exported respectively in the left back of driving box one and left front, and the right-hand member of this each driving shaft two is fixed respectively a recessed dise knife 15.
The specific works mode that rectangular pile pile-formation machine is manufactured concrete rectangular stake is as follows: rectangular pile pile-formation machine is provided with grouting pump, when work, grouting pump injects respectively water under high pressure to each drill bit one, motor one drives driving box three runnings, driving box three rotating drive driving box one, driving box two by driving shaft one in operation process turns round, and driving box two drives respectively the driving shaft two of right back and the driving shaft two of right front relative to synchronously rotating in operation process; Driving box one drives respectively the driving shaft two of left back and the driving shaft two of left front relative to synchronously rotating in operation process; Driving box one, driving box two, driving box three drive drill bit one rotation by the drilling rod one of its lower end respectively, and three drill bits one cut the earth of its lower end in rotation; Two driving shafts one drive respectively two linking arms drives on each driving shaft one to stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process by between every two drill bits one, between two common tangents of two drill bit one cylindricals, the unhewn earth cutting of drill bit one, two driving shafts two of right-hand member drive respectively the recessed dise knife on two driving shafts two of right-hand member to rotate in rotation, and two recessed dise knifes of right-hand member become concave arc by the soil cutting of the termination of right part in rotation; Two driving shafts two of left end drive respectively the recessed dise knife on two driving shafts two of left end to rotate in rotation, and two recessed dise knifes of left end become concave arc by the soil cutting of the termination of left part in rotation; The soil body machining away is mixed in mud, and mud flows out from hole, creep into bar and compress into process downwards and form two ends, a left and right respectively with the rectangular opening of concave arc, in this hole casting concrete, form concrete rectangular stake.
The specific works mode that rectangular pile pile-formation machine is manufactured soil cement rectangular pile is as follows: when the work of rectangular pile pile-formation machine, grouting pump is to each drill bit one injected water mud respectively, motor one drives driving box three runnings, driving box three rotating drive driving box one, driving box two by driving shaft one in operation process turns round, and driving box two drives respectively the driving shaft two of right back and the driving shaft two of right front relative to synchronously rotating in operation process; Driving box one drives respectively the driving shaft two of left back and the driving shaft two of left front relative to synchronously rotating in operation process; Driving box one, driving box two, driving box three drive drill bit one rotation by the drilling rod one of its lower end respectively, and three drill bits one stir the earth of its lower end and cement mortar in rotation; Two driving shafts one drive respectively two linking arms drives on each driving shaft one to stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process by between every two drill bits one, between two common tangents of two drill bit one cylindricals, the unhewn earth of drill bit one and cement mortar stir, two driving shafts two of right-hand member drive respectively the recessed dise knife on two driving shafts two of right-hand member to rotate in rotation, and two recessed dise knifes of right-hand member stir into concave arc by the soil body of the termination of right part and cement mortar in rotation; Two driving shafts two of left end drive respectively the recessed dise knife on two driving shafts two of left end to rotate in rotation, and two recessed dise knifes of left end stir into concave arc by the soil body of the termination of left part and cement mortar in rotation; Creeping into bar compresses into process and forms two ends, a left and right respectively with the rectangle cement earth pile of concave arc downwards.
Cylinder pile pile-formation machine comprises the structure in Fig. 3; Concrete structure is as follows: the upper end of the lower end fixed motor 2 22 of drilling rod 2 21, the output shaft of motor two lower ends is fixed with drill bit 2 23.
Cylinder pile pile-formation machine can work independently, specific works mode is as follows: when work, grouting pump pours into water under high pressure to drill bit, motor two drives drill bit two rotations, drill bit two in rotary course by the soil cutting of drill bit lower end, the soil body machining away is mixed in mud, mud flows out from hole, and drilling rod two forms the circular hole of certain depth in the process of compressing into, casting concrete, formation concrete circular stanchion in this hole.
The concave arc at the dome arc of cylinder pile and two ends, rectangular pile left and right coincide.
The working method that rectangular pile pile-formation machine and cylinder pile pile-formation machine are manufactured T stake is as follows: first in the position that needs pile, manufacture a concrete circular stanchion according to the working method of above-mentioned cylinder pile pile-formation machine with cylinder pile pile-formation machine, on the right side of this cylinder pile, the distance of the rectangular pile in interval is manufactured another concrete circular stanchion, so manufacture the concrete circular stanchion of the rectangular pile distance in multiple intervals, when the concrete strength of the concrete circular stanchion on both sides reaches a timing, again in the spacing between every two cylinder piles, manufacture respectively a concrete rectangular stake by the working method that rectangular pile pile-formation machine is manufactured concrete rectangular stake according to above-mentioned rectangular pile pile-formation machine, make the concave arc at two ends, each concrete rectangular stake left and right be fit to respectively the cylindrical of the concrete circular stanchion at two ends, left and right, manufacture a soil cement rectangular pile in the front portion of each cylinder pile, the working method of using rectangular pile pile-formation machine to manufacture soil cement rectangular pile according to above-mentioned rectangular pile pile-formation machine, make the rear end concave arc of anterior rectangular pile be fit to the cylindrical of cylinder pile, so form the T stake piling wall that the mutual circular arc of multiple T stakes plugs together, for gear soil, the antiseep of building foundation.
Claims (2)
1. circular arc plugs together a T stake manufacturing equipment, comprises rectangular pile pile-formation machine and cylinder pile pile-formation machine, it is characterized in that:
The concrete structure of rectangular pile pile-formation machine comprises: creep into bar (1) lower end and be fixed on motor one (2) upper end, driving box three (3) upper ends are fixed in motor one lower end; Creep into bar bottom left end and be fixed with transverse arm one (6), the left end bottom of transverse arm one is fixed with armstand one (10), the lower end of armstand one is fixed with driving box one (4), creep into bar bottom right-hand member and be fixed with transverse arm two (7), the right-hand member bottom of transverse arm two is fixed with armstand two (11), and the lower end of armstand two is fixed with driving box two (5); The lower end of driving box one, driving box two, driving box three is respectively equipped with a drilling rod one (12), and the lower end of each drilling rod one is respectively equipped with a drill bit one (13); Between driving box three and driving box one, be respectively equipped with a driving shaft one (8) between driving box three and driving box two, a linking arm (16) is fixed respectively on the middle both sides of every driving shaft one, and the outer end of each linking arm is fixed respectively one and stirred cutter (9); A driving shaft two (14) is exported respectively in the right back of driving box two and right front, and the right-hand member of this each driving shaft two is fixed respectively a recessed dise knife (15); A driving shaft two (14) is exported respectively in the left back of driving box one and left front, and the left end of this each driving shaft two is fixed respectively a recessed dise knife (15);
Rectangular pile pile-formation machine is manufactured the specific works mode of concrete rectangular stake: when the work of rectangular pile pile-formation machine, grouting pump injects respectively water under high pressure to each drill bit one, motor one drives driving box three runnings, driving box three rotating drive driving box one, driving box two by driving shaft one in operation process turns round, and driving box two drives respectively the driving shaft two of right back and the driving shaft two of right front relative to synchronously rotating in operation process; Driving box one drives respectively the driving shaft two of left back and the driving shaft two of left front relative to synchronously rotating in operation process; Driving box one, driving box two, driving box three drive drill bit one rotation by the drilling rod one of its lower end respectively, and three drill bits one cut the earth of its lower end in rotation; Two driving shafts one drive respectively two linking arms drives on each driving shaft one to stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process by between every two drill bits one, between two common tangents of two drill bit one cylindricals, the unhewn earth cutting of drill bit one, two driving shafts two of right-hand member drive respectively the recessed dise knife on two driving shafts two of right-hand member to rotate in rotation, and two recessed dise knifes of right-hand member become concave arc by the soil cutting of the termination of right part in rotation; Two driving shafts two of left end drive respectively the recessed dise knife on two driving shafts two of left end to rotate in rotation, and two recessed dise knifes of left end become concave arc by the soil cutting of the termination of left part in rotation; The soil body machining away is mixed in mud, and mud flows out from hole, creep into bar and compress into process downwards and form two ends, a left and right respectively with the rectangular opening of concave arc, in this hole casting concrete, form concrete rectangular stake;
The specific works mode that rectangular pile pile-formation machine is manufactured soil cement rectangular pile is as follows: when the work of rectangular pile pile-formation machine, grouting pump is to each drill bit one injected water mud respectively, motor one drives driving box three runnings, driving box three rotating drive driving box one, driving box two by driving shaft one in operation process turns round, and driving box two drives respectively the driving shaft two of right back and the driving shaft two of right front relative to synchronously rotating in operation process; Driving box one drives respectively the driving shaft two of left back and the driving shaft two of left front relative to synchronously rotating in operation process; Driving box one, driving box two, driving box three drive drill bit one rotation by the drilling rod one of its lower end respectively, and three drill bits one stir the earth of its lower end and cement mortar in rotation; Two driving shafts one drive respectively two linking arms drives on each driving shaft one to stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process by between every two drill bits one, between two common tangents of two drill bit one cylindricals, the unhewn earth of drill bit one and cement mortar stir, two driving shafts two of right-hand member drive respectively the recessed dise knife on two driving shafts two of right-hand member to rotate in rotation, and two recessed dise knifes of right-hand member stir into concave arc by the soil body of the termination of right part and cement mortar in rotation; Two driving shafts two of left end drive respectively the recessed dise knife on two driving shafts two of left end to rotate in rotation, and two recessed dise knifes of left end stir into concave arc by the soil body of the termination of left part and cement mortar in rotation; Creeping into bar compresses into process and forms two ends, a left and right respectively with the rectangle cement earth pile of concave arc downwards;
The concrete structure of cylinder pile pile-formation machine is as follows: the upper end of the lower end fixed motor 2 22 of drilling rod 2 21, and the output shaft of motor two lower ends is fixed with drill bit 2 23;
The specific works mode of cylinder pile pile-formation machine: when work, grouting pump pours into water under high pressure to drill bit, motor two drives drill bit two rotations, drill bit two in rotary course by the soil cutting of drill bit lower end, the soil body machining away is mixed in mud, mud flows out from hole, drilling rod two forms the circular hole of certain depth in the process of compressing into, casting concrete, formation concrete circular stanchion in this hole;
Rectangular pile pile-formation machine and cylinder pile pile-formation machine are manufactured the mode of T stake: first in the position that needs pile, manufacture a concrete circular stanchion according to the working method of above-mentioned cylinder pile pile-formation machine with cylinder pile pile-formation machine, on the right side of this cylinder pile, the distance of the rectangular pile in interval is manufactured another concrete circular stanchion, so manufacture the concrete circular stanchion of the rectangular pile distance in multiple intervals, when the concrete strength of the concrete circular stanchion on both sides reaches a timing, again in the spacing between every two cylinder piles, manufacture respectively a concrete rectangular stake by the working method that rectangular pile pile-formation machine is manufactured concrete rectangular stake according to above-mentioned rectangular pile pile-formation machine, make the concave arc at two ends, each concrete rectangular stake left and right be fit to respectively the cylindrical of the concrete circular stanchion at two ends, left and right, manufacture a soil cement rectangular pile in the front portion of each cylinder pile, the working method of using rectangular pile pile-formation machine to manufacture soil cement rectangular pile according to above-mentioned rectangular pile pile-formation machine, make the rear end concave arc of anterior rectangular pile be fit to the cylindrical of cylinder pile, so form the T stake piling wall that the mutual circular arc of multiple T stakes plugs together, for gear soil, the antiseep of building foundation.
2. circular arc according to claim 1 plugs together T stake manufacturing equipment, it is characterized in that: the dome arc of cylinder pile and the concave arc of rectangular pile right-hand member coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610088796.XA CN105604008A (en) | 2016-02-18 | 2016-02-18 | Manufacturing equipment of circular-arch-shaped plugging T-shaped piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610088796.XA CN105604008A (en) | 2016-02-18 | 2016-02-18 | Manufacturing equipment of circular-arch-shaped plugging T-shaped piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105604008A true CN105604008A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610088796.XA Withdrawn CN105604008A (en) | 2016-02-18 | 2016-02-18 | Manufacturing equipment of circular-arch-shaped plugging T-shaped piles |
Country Status (1)
| Country | Link |
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| CN (1) | CN105604008A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604020A (en) * | 2016-02-18 | 2016-05-25 | 宗琪 | Arc buckling Y-shaped pile manufacturing device |
| CN105625407A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc inserting-connecting V-shaped piles |
| CN105625398A (en) * | 2016-02-18 | 2016-06-01 | 李会修 | Manufacturing equipment for circular-arc inserting-buckling T-shaped piles |
| CN105625409A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc inserting-buckling X-shaped piles |
| CN105625408A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc locking T-shaped piles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204876A (en) * | 1997-01-21 | 1998-08-04 | Fujita Corp | Soil improvement method by using pile |
| CN104727313A (en) * | 2015-04-12 | 2015-06-24 | 张璐 | Four-end stirring drill rig |
| CN105019444A (en) * | 2015-08-09 | 2015-11-04 | 朱艳菊 | Pile-forming machine for semicircle connector piles |
| CN105155521A (en) * | 2015-08-09 | 2015-12-16 | 朱艳菊 | Using method for semicircle connector pile forming machine |
-
2016
- 2016-02-18 CN CN201610088796.XA patent/CN105604008A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204876A (en) * | 1997-01-21 | 1998-08-04 | Fujita Corp | Soil improvement method by using pile |
| CN104727313A (en) * | 2015-04-12 | 2015-06-24 | 张璐 | Four-end stirring drill rig |
| CN105019444A (en) * | 2015-08-09 | 2015-11-04 | 朱艳菊 | Pile-forming machine for semicircle connector piles |
| CN105155521A (en) * | 2015-08-09 | 2015-12-16 | 朱艳菊 | Using method for semicircle connector pile forming machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604020A (en) * | 2016-02-18 | 2016-05-25 | 宗琪 | Arc buckling Y-shaped pile manufacturing device |
| CN105625407A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc inserting-connecting V-shaped piles |
| CN105625398A (en) * | 2016-02-18 | 2016-06-01 | 李会修 | Manufacturing equipment for circular-arc inserting-buckling T-shaped piles |
| CN105625409A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc inserting-buckling X-shaped piles |
| CN105625408A (en) * | 2016-02-18 | 2016-06-01 | 宗琪 | Manufacturing equipment for circular-arc locking T-shaped piles |
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Application publication date: 20160525 |
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| WW01 | Invention patent application withdrawn after publication |