CN105525610A - Arc locking equipment for T piles and rectangular piles - Google Patents
Arc locking equipment for T piles and rectangular piles Download PDFInfo
- Publication number
- CN105525610A CN105525610A CN201511012373.1A CN201511012373A CN105525610A CN 105525610 A CN105525610 A CN 105525610A CN 201511012373 A CN201511012373 A CN 201511012373A CN 105525610 A CN105525610 A CN 105525610A
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- headstock
- driver
- stake
- fixed
- pile
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- 239000002689 soil Substances 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 23
- 238000005553 drilling Methods 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 1
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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- 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
- E02D2200/1628—Shapes rectangular
- E02D2200/1635—Shapes rectangular made from single element
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses arc locking equipment for T piles and rectangular piles. The arc locking equipment is used for manufacturing a plurality of T-shaped concrete locked piles spaced with one rectangular locked pile, wherein when concrete of the T-shaped locked piles at the two sides achieve a certain strength, a rectangular cemented soil locked pile is manufactured in a space between each two T-shaped concrete locked piles by a rectangular pile forming machine according to the working manner of the rectangular pile forming machine; a concave-arc end head at the left end of the rectangular locked pile between each two T-shaped concrete locked piles is engaged with a convex-arc end head at the right end of the T-shaped concrete locked pile at the left side, and a concave-arc end head at the right end of the rectangular cemented soil locked pile is engaged with a convex-arc end head at the left end of the T-shaped concrete locked pile at the right side; in this way, a pile wall formed through mutual arc locking for the plurality of T-shaped concrete locked piles and the rectangular cemented soil locked pile between each two T-shaped concrete locked piles is formed, and used for soil retaining and seepage prevention of a building foundation.
Description
Technical field
The present invention relates to the T stake and the arc latched equipment of rectangular pile that use in a kind of arc latched equipment, particularly a kind of building foundation engineering.
Background technology
Cement-soil pile forming machine is by the multiple drill bit rotational of power drive, the earth of drill bit bottom cuts and stirs into cement earth pile with cement paste by multiple drill bit in rotation process, at present, formed by the Soil-cement rig of other pattern, pile body is all the assembly of multiple cement-soil cylinder, is not the mutual snap close piling wall of T-shaped concrete pile and rectangle cement earth pile.
Summary of the invention
The present invention compensate for above shortcoming, provides a kind ofly can manufacture T-shaped concrete pile body and the mutually arc latched T stake of rectangle cement soil pile and the arc latched equipment of rectangular pile.
The present invention is achieved through the following technical solutions:
A kind of T stake and the arc latched equipment of rectangular pile, comprise T stake pile forming machine and rectangular pile pile forming machine.
T stake pile forming machine comprises following structure: the front end of cross bar two is fixed on the centre of cross bar one, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar one; The middle lower end of cross bar one is fixed with column three, the lower end of column three is fixed with motor one, the lower end of motor one is fixed with headstock three, the left end bottom of cross bar one is fixed with column one, the lower end of column one is fixed with headstock one, and the right-hand member bottom of cross bar one is fixed with column two, and the lower end of column two is fixed with headstock two, the rear end lower of cross bar two is fixed with column four, and the lower end of column four is fixed with headstock four; The lower end of headstock one, headstock two, headstock three, headstock four is respectively equipped with a drilling rod, and the lower end of each drilling rod is respectively equipped with a drill bit; A line shaft one is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a link arm is fixed on the middle both sides of every line shaft one respectively, and the outer end of each link arm fixes a mixing arm respectively.
Rectangular pile pile forming machine comprises following structure: motor two upper end is fixed in support bar two lower end, and driver three upper end is fixed in motor two lower end; Support bar two bottom left end is fixed with transverse arm one, the left end bottom of transverse arm one is fixed with vertical rod one, and the lower end of vertical rod one is fixed with driver one, and support bar two bottom right-hand member is fixed with transverse arm two, the right-hand member bottom of transverse arm two is fixed with vertical rod two, and the lower end of vertical rod two is fixed with driver two; The lower end of driver one, driver two, driver three is respectively equipped with a drilling rod, and the lower end of each drilling rod is respectively equipped with a drill bit; Be respectively equipped with a driving shaft one between driver three and driver one, between driver three and driver two, a linking arm is fixed on the middle both sides of every driving shaft one respectively, and the outer end of each linking arm fixes a stirring cutter respectively; The right back of driver two and right front export a driving shaft two respectively, the right-hand member of this each driving shaft two fixes a circular arc cutter respectively, the left back of driver one and left front export a driving shaft two respectively, and the left end of this each driving shaft two fixes a circular arc cutter respectively.
The present invention has following feature:
The present invention can manufacture T-shaped concrete pile body and the mutually arc latched cement-soil pile of rectangle cement soil pile, for gear soil, the antiseepage of building foundation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is the structural representation of T stake pile forming machine;
Fig. 2 is A-A direction view of Fig. 1;
Fig. 3 is B-B view of Fig. 1;
Fig. 4 is C-C direction view of Fig. 1;
Fig. 5 is the structural representation of rectangular pile pile forming machine;
Fig. 6 is D-D view of Fig. 5;
Fig. 7 is the arc latched cross-sectional view of T stake and rectangular pile.
In figure: 1, support bar one, 2, motor one, 3, headstock three, 4, headstock one, 5, headstock two, 6, cross bar one, 7, column three, 8, line shaft one, 9, mixing arm, 10, column one, 11, column two, 12, drilling rod, 13, drill bit, 15, circular arc cutter, 16, link arm, 17, cross bar two, 18, column four, 19, headstock four; 31, support bar two, 32, motor two, 33, driver three, 34, driver one, 35, driver two, 36, transverse arm one, 37, transverse arm two, 38, driving shaft one, 39, stir cutter, 40, vertical rod one, 41, vertical rod two, 44, driving shaft two, 46, linking arm.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention, and this embodiment comprises T stake pile forming machine and rectangular pile pile forming machine.
T stake pile forming machine comprises the structure in Fig. 1, Fig. 2, Fig. 3, Fig. 4; Concrete structure is as follows: the front end of cross bar 2 17 is fixed on the centre of cross bar 1, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar 1; The middle lower end of cross bar one is fixed with column 37, the lower end of column three is fixed with motor 1, the lower end of motor one is fixed with headstock 33, the left end bottom of cross bar one is fixed with column 1, the lower end of column one is fixed with headstock 1, and the right-hand member bottom of cross bar one is fixed with column 2 11, and the lower end of column two is fixed with headstock 25, the rear end lower of cross bar two is fixed with column 4 18, and the lower end of column four is fixed with headstock 4 19; The lower end of headstock one, headstock two, headstock three, headstock four is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13; A line shaft 1 is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a link arm 16 is fixed on the middle both sides of every line shaft one respectively, and the outer end of each link arm fixes a mixing arm 9 respectively.
Mixing arm on three line shafts one differs certain angle in rotation, is independent of each other mutually in rotation.
The specific works mode of T stake pile forming machine is as follows: during work, grouting pump pours into water under high pressure respectively to each drill bit, motor one drives headstock three running, and headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process; Headstock one, headstock two, headstock three, headstock four drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by four drill bits in rotation; Three line shafts one drive two link arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by mixing arm in rotation process; The soil body cut is mixed in mud, mud flows out from hole, and support bar one is compressed into process and formed about one two ends respectively with the T-shaped hole of dome arc termination downwards.
Rectangular pile pile forming machine comprises the structure in Fig. 5, Fig. 6; Concrete structure is as follows: motor 2 32 upper end is fixed in support bar 2 31 lower end, and driver 3 33 upper end is fixed in motor two lower end; Support bar two bottom left end is fixed with transverse arm 1, the left end bottom of transverse arm one is fixed with vertical rod 1, the lower end of vertical rod one is fixed with driver 1, support bar two bottom right-hand member is fixed with transverse arm 2 37, the right-hand member bottom of transverse arm two is fixed with vertical rod 2 41, and the lower end of vertical rod two is fixed with driver 2 35; The lower end of driver one, driver two, driver three is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13; Be respectively equipped with a driving shaft 1 between driver three and driver one, between driver three and driver two, a linking arm 46 is fixed on the middle both sides of every driving shaft one respectively, and the outer end of each linking arm fixes a stirring cutter 39 respectively; The right back of driver two and right front export a driving shaft 2 44 respectively, the right-hand member of this each driving shaft two fixes a circular arc cutter 15 respectively, the left back of driver one and left front export a driving shaft 2 44 respectively, and the left end of this each driving shaft two fixes a circular arc cutter 15 respectively.
The specific works mode of rectangular pile pile forming machine is as follows: rectangular pile pile forming machine is also provided with high-pressure pump, during work, high-pressure pump injects cement paste respectively to each drill bit, motor two drives driver three running, driver three is operated by the rotating drive driver one of driving shaft one, driver two in operation process, driver two drives the relative synchronous axial system of driving shaft two of the driving shaft two of right back and right front respectively in operation process, and driver one drives the relative synchronous axial system of driving shaft two of the driving shaft two of left back and left front respectively in operation process; Driver one, driver two, driver three drive drill bit rotational respectively by the drilling rod of its lower end, and the earth of its lower end and cement paste stir by three drill bits in rotation; Two driving shafts one drive two linking arms on each driving shaft one to drive respectively and stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process, the part earth and cement paste that are less than bit diameter between every two drill bits to be stirred, two driving shafts two of right-hand member drive two of right-hand member circular arc swivels to move respectively in rotation, and the soil body of the termination of right part and cement paste are stirred into concave arc termination by these two circular arc cuttves in rotation; Two driving shafts two of left end drive two of left end circular arc swivels to move respectively in rotation, and the soil body of the termination of left part and cement paste are stirred into concave arc termination by these two circular arc cuttves in rotation; Support bar two is compressed into process and is formed about one two ends respectively with the cement-soil rectangle snap close stake of concave arc termination downwards.
The concave arc termination at rectangle snap close stake two ends and the dome arc termination at T-shaped snap close stake two ends coincide.
T stake pile forming machine and rectangular pile pile forming machine associated working process as follows: first in the original position needing pile axis, a T-shaped hole is manufactured according to the working method of above-mentioned T stake pile forming machine with T stake pile forming machine, concreting, the stake of formation concrete T-shaped snap close in this T-shaped hole, on the right side of this concrete T-shaped snap close stake, the distance of interval rectangle snap close stake manufactures the stake of second concrete T-shaped snap close again, so manufacture one, multiple interval rectangle snap close pilespacing from the stake of multiple concrete T-shaped snap close, when the concrete of the T-shaped snap close stake on both sides reaches some strength, in spacing again between the stake of every two concrete T-shaped snap closes, the stake of a cement-soil rectangle snap close is manufactured according to the working method of above-mentioned rectangular pile pile forming machine with rectangular pile pile forming machine, the concave arc termination of the rectangle snap close stake left end between the stake of every two concrete T-shaped snap closes is made to be fit to the dome arc termination of left side concrete T-shaped snap close stake right-hand member, the concave arc termination of cement-soil rectangle snap close stake right-hand member is fit to the dome arc termination of the right concrete T-shaped snap close stake left end, the piling wall that cement-soil rectangle snap close stake between the snap close stake of formation like this multiple concrete T-shaped and the stake of every two concrete T-shaped snap closes is mutually arc latched, for the gear soil of building foundation, antiseep.
Claims (1)
1. T stake and the arc latched equipment of rectangular pile, comprise T stake pile forming machine and rectangular pile pile forming machine;
It is characterized in that: the concrete structure of T stake pile forming machine comprises: the front end of cross bar 2 17 is fixed on the centre of cross bar 1, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar 1; The middle lower end of cross bar one is fixed with column 37, the lower end of column three is fixed with motor 1, the lower end of motor one is fixed with headstock 33, the left end bottom of cross bar one is fixed with column 1, the lower end of column one is fixed with headstock 1, and the right-hand member bottom of cross bar one is fixed with column 2 11, and the lower end of column two is fixed with headstock 25, the rear end lower of cross bar two is fixed with column 4 18, and the lower end of column four is fixed with headstock 4 19; The lower end of headstock one, headstock two, headstock three, headstock four is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13; A line shaft 1 is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a link arm 16 is fixed on the middle both sides of every line shaft one respectively, and the outer end of each link arm fixes a mixing arm 9 respectively;
During the work of T stake pile forming machine, grouting pump pours into water under high pressure respectively to each drill bit, motor one drives headstock three running, and headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process; Headstock one, headstock two, headstock three, headstock four drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by four drill bits in rotation; Three line shafts one drive two link arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by mixing arm in rotation process; The soil body cut is mixed in mud, mud flows out from hole, and support bar one is compressed into process and formed about one two ends respectively with the T-shaped hole of dome arc termination downwards;
The concrete structure of rectangular pile pile forming machine comprises: motor 2 32 upper end is fixed in support bar 2 31 lower end, and driver 3 33 upper end is fixed in motor two lower end; Support bar two bottom left end is fixed with transverse arm 1, the left end bottom of transverse arm one is fixed with vertical rod 1, the lower end of vertical rod one is fixed with driver 1, support bar two bottom right-hand member is fixed with transverse arm 2 37, the right-hand member bottom of transverse arm two is fixed with vertical rod 2 41, and the lower end of vertical rod two is fixed with driver 2 35; The lower end of driver one, driver two, driver three is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13; Be respectively equipped with a driving shaft 1 between driver three and driver one, between driver three and driver two, a linking arm 46 is fixed on the middle both sides of every driving shaft one respectively, and the outer end of each linking arm fixes a stirring cutter 39 respectively; The right back of driver two and right front export a driving shaft 2 44 respectively, the right-hand member of this each driving shaft two fixes a circular arc cutter 15 respectively, the left back of driver one and left front export a driving shaft 2 44 respectively, and the left end of this each driving shaft two fixes a circular arc cutter 15 respectively;
During the work of rectangular pile pile forming machine, high-pressure pump injects cement paste respectively to each drill bit, motor two drives driver three running, driver three is operated by the rotating drive driver one of driving shaft one, driver two in operation process, driver two drives the relative synchronous axial system of driving shaft two of the driving shaft two of right back and right front respectively in operation process, and driver one drives the relative synchronous axial system of driving shaft two of the driving shaft two of left back and left front respectively in operation process; Driver one, driver two, driver three drive drill bit rotational respectively by the drilling rod of its lower end, and the earth of its lower end and cement paste stir by three drill bits in rotation; Two driving shafts one drive two linking arms on each driving shaft one to drive respectively and stir cutter around driving shaft one rotation in rotation, stir cutter in rotation process, the part earth and cement paste that are less than bit diameter between every two drill bits to be stirred, two driving shafts two of right-hand member drive two of right-hand member circular arc swivels to move respectively in rotation, and the soil body of the termination of right part and cement paste are stirred into concave arc termination by these two circular arc cuttves in rotation; Two driving shafts two of left end drive two of left end circular arc swivels to move respectively in rotation, and the soil body of the termination of left part and cement paste are stirred into concave arc termination by these two circular arc cuttves in rotation; Support bar two is compressed into process and is formed about one two ends respectively with the cement-soil rectangle snap close stake of concave arc termination downwards;
T stake pile forming machine and rectangular pile pile forming machine associated working process: first in the original position needing pile axis, a T-shaped hole is manufactured according to the working method of above-mentioned T stake pile forming machine with T stake pile forming machine, concreting, the stake of formation concrete T-shaped snap close in this T-shaped hole, on the right side of this concrete T-shaped snap close stake, the distance of interval rectangle snap close stake manufactures the stake of second concrete T-shaped snap close again, so manufacture one, multiple interval rectangle snap close pilespacing from the stake of multiple concrete T-shaped snap close, when the concrete of the T-shaped snap close stake on both sides reaches some strength, in spacing again between the stake of every two concrete T-shaped snap closes, the stake of a cement-soil rectangle snap close is manufactured according to the working method of above-mentioned rectangular pile pile forming machine with rectangular pile pile forming machine, the concave arc termination of the rectangle snap close stake left end between the stake of every two concrete T-shaped snap closes is made to be fit to the dome arc termination of left side concrete T-shaped snap close stake right-hand member, the concave arc termination of cement-soil rectangle snap close stake right-hand member is fit to the dome arc termination of the right concrete T-shaped snap close stake left end, the piling wall that cement-soil rectangle snap close stake between the snap close stake of formation like this multiple concrete T-shaped and the stake of every two concrete T-shaped snap closes is mutually arc latched, for the gear soil of building foundation, antiseep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012373.1A CN105525610A (en) | 2015-12-31 | 2015-12-31 | Arc locking equipment for T piles and rectangular piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012373.1A CN105525610A (en) | 2015-12-31 | 2015-12-31 | Arc locking equipment for T piles and rectangular piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105525610A true CN105525610A (en) | 2016-04-27 |
Family
ID=55768105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012373.1A Withdrawn CN105525610A (en) | 2015-12-31 | 2015-12-31 | Arc locking equipment for T piles and rectangular piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105525610A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442558A (en) * | 2015-12-31 | 2016-03-30 | 宋姝娴 | Circular-arc lock catch equipment for T-shaped piles and rectangular piles |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
| CN105019446A (en) * | 2015-08-09 | 2015-11-04 | 宋姝娴 | Using method of round-head T-shaped pile manufacturing equipment |
-
2015
- 2015-12-31 CN CN201511012373.1A patent/CN105525610A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
| CN105019446A (en) * | 2015-08-09 | 2015-11-04 | 宋姝娴 | Using method of round-head T-shaped pile manufacturing equipment |
Non-Patent Citations (1)
| Title |
|---|
| 刘古岷等: "《桩工机械》", 31 May 2001 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442558A (en) * | 2015-12-31 | 2016-03-30 | 宋姝娴 | Circular-arc lock catch equipment for T-shaped piles and rectangular piles |
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Application publication date: 20160427 |