CN114378938B - Rhombic concrete pipe pile, mould for rhombic concrete pipe pile, preparation and installation method - Google Patents
Rhombic concrete pipe pile, mould for rhombic concrete pipe pile, preparation and installation method Download PDFInfo
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- CN114378938B CN114378938B CN202011123131.0A CN202011123131A CN114378938B CN 114378938 B CN114378938 B CN 114378938B CN 202011123131 A CN202011123131 A CN 202011123131A CN 114378938 B CN114378938 B CN 114378938B
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- concrete pipe
- pipe pile
- shaped concrete
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/80—Moulds adapted to centrifugal or rotational moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/12—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means tamping or ramming the material or the mould elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a diamond-shaped concrete pipe pile, which comprises a pipe pile body with lock catches at two sides and a connecting piece connected in the lock catches; the transverse section of the tubular pile body is square, the tubular pile body rotates 45 degrees around the central axis of the central hole to form a diamond shape, and four right-angle positions of the tubular pile body are perpendicular to the diagonal line of the tubular pile body to form passivation edges; the lock catches are respectively arranged on the passivation edges at two opposite sides; the connecting piece is connected in any lock catch. The invention is convenient for processing, storing and transporting and installing the diamond concrete pipe pile and is beneficial to anti-corrosion treatment.
Description
Technical Field
The invention relates to a lock catch pipe pile enclosure wall used as a foundation pit enclosure structure in foundation pit engineering or a cofferdam in hydraulic engineering, in particular to a diamond-shaped concrete pipe pile, a diamond-shaped concrete pipe pile die and a preparation and installation method.
Background
The retaining wall of the foundation pit retaining structure or the retaining wall and the wave wall in the hydraulic engineering not only need to bear the soil pressure or the water wave acting force, but also need to have the function of preventing water from penetrating. The prior common enclosure pile (wall) forms mainly comprise a bored concrete pile, a cement soil pile with water insulation, an underground diaphragm wall, an SMW construction method pile, a steel sheet pile, a steel pipe pile with a lock catch, a concrete sheet pile with a tongue-and-groove and the like, and the steel sheet pile, the steel pipe pile with the lock catch, the concrete sheet pile with the tongue-and-groove and the like are also common enclosure dike and wave wall forms. Because the existing foundation pit support structures are integrally built, great inconvenience is brought to processing, storage, transportation and installation of the foundation pit support structures.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a diamond-shaped concrete pipe pile, a diamond-shaped concrete pipe pile die, a preparation and installation method, which are convenient for processing, storage, transportation and installation of the diamond-shaped concrete pipe pile and are beneficial to anti-corrosion treatment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
on one hand, the diamond-shaped concrete pipe pile comprises a pipe pile body with lock catches at two sides and a connecting piece connected in the lock catches;
the transverse section of the tubular pile body is square, the tubular pile body rotates 45 degrees around the central axis of the central hole to form a diamond shape, and four right-angle positions of the tubular pile body are perpendicular to the diagonal line of the tubular pile body to form passivation edges;
the lock catches are respectively arranged on the passivation edges at two opposite sides;
the connecting piece is connected in any lock catch.
Preferably, the outer length S1 of the transverse section of the tubular pile body is set to be more than or equal to 0.4m and less than or equal to S1 and less than or equal to 4m;
the diameter D of the central hole of the tubular pile body is set to be less than or equal to 2/3 x S1;
the length S2 of the passivation edge is set to be S2 less than or equal to 1/5 x S1.
Preferably, the cross section of the lock catch is a polygonal or circular cavity with a notch, and a wrapping edge connected to the notch and extending to the outer side of the passivation edge.
Preferably, the maximum diagonal length or the circular diameter of the polygon of the lock catch section is equal to 1/6-1/12 of the outer edge length S1;
the outward extending length of the notch of the lock catch section is equal to 1/6-1/12 of the outer edge length S1;
the width of the notch of the lock catch section is equal to 1/3-1/12 of the outward extension length of the notch of the lock catch section.
Preferably, the longitudinal height H of the tubular pile body is set to be more than or equal to 2m and less than or equal to 80m.
Preferably, the shell material of the lock catch adopts engineering plastics or metal, and the wall thickness of the lock catch shell is between 3mm and 20 mm.
Preferably, steel end plates are arranged at two ends of the tubular pile body, the longitudinal height of each steel end plate is 10-40 mm, and the plane profile of each steel end plate is identical to the transverse section profile of the tubular pile body.
Preferably, the cross section of the connecting piece is a metal member which is bilaterally symmetrical left and right and front and back, and both wings of the connecting piece are provided with expansion heads, and the size of the expansion heads is matched with the size of the cavity of the lock catch;
the longitudinal height of the connecting piece is larger than, smaller than or equal to the longitudinal height of the tubular pile body.
On the other hand, the diamond-shaped concrete pipe pile die is used for preparing the diamond-shaped concrete pipe pile and comprises an upper half die and a lower half die which is arranged in mirror symmetry with the upper half die, wherein the upper half die and the lower half die are mutually buckled;
the upper half mould comprises two upper steel plates which are mutually and vertically connected, the sections of the two upper steel plates are arranged to be isosceles right triangles without bottom edges, the opening is downward, and the three corner positions are all arranged to be passivation edges;
an upper locating plate in the vertical direction is connected to the right-angle position where the two upper steel plates are connected, and the upper locating plate is used for placing one lock catch;
the outer edge of the upper half die is provided with an upper half running wheel, and the upper half die is connected with the upper half running wheel through an upper rib plate;
the lower half die comprises two lower steel plates which are mutually and perpendicularly connected, the sections of the two lower steel plates are isosceles right triangles without bottom edges, the openings are upward, and the three corner positions are all provided with passivation edges;
a lower locating plate in the vertical direction is connected to the right-angle position where the two lower steel plates are connected, and the lower locating plate is used for placing the other lock catch;
the outer edge of the lower half die is provided with a lower half running wheel, and the lower half die is connected with the lower half running wheel through a lower rib plate.
Preferably, the section widths of the upper positioning plate and the lower positioning plate are equal to the gap width of the section of the lock catch;
the section length of the upper locating plate and the lower locating plate is greater than the outward extending length of the notch of the lock catch section.
In still another aspect, a method for preparing and installing a diamond-shaped concrete pipe pile, which adopts the diamond-shaped concrete pipe pile die, comprises the following steps:
1) After pouring concrete mixture in the lower half mould, mutually buckling the upper half mould and the lower half mould to form the diamond-shaped concrete pipe pile mould;
2) Compacting and forming the concrete mixture in the diamond-shaped concrete pipe pile mould;
3) Dismantling the diamond-shaped concrete pipe pile die, and splitting the diamond-shaped concrete pipe pile die into an upper half die and a lower half die, wherein the upper positioning plate and the lower positioning plate do not prevent the diamond-shaped concrete pipe pile die from being dismantled，The lock catches placed on the upper positioning plate and the lower positioning plate are arranged in the passivation edges on two opposite sides of the diamond-shaped concrete pipe pile;
4) Repeating the steps 1) to 3) to prepare a plurality of diamond-shaped concrete pipe piles;
5) Vertically sinking a first diamond-shaped concrete pipe pile on the ground surface horizontal plane;
6) Inserting one side of the connecting piece into the lock catch on the adjacent side of the first diamond-shaped concrete pipe pile, wherein the top end of the connecting piece is exposed out of the ground;
7) Engaging the lock catch on the other side of the second diamond-shaped concrete pipe pile with the adjacent side of the connecting piece, and vertically sinking the second diamond-shaped concrete pipe pile into the ground surface horizontal plane;
8) And 5) repeating the steps 5) to 7), and vertically sinking the plurality of diamond-shaped concrete pipe piles into the ground surface horizontal plane sequentially by mutual occlusion.
Preferably, elastic water-proof strips are further arranged in gaps among the diamond-shaped concrete pipe piles.
Preferably, in the step 2), the diamond-shaped concrete pipe pile die compactly forms the concrete mixture in a centrifugal or vibrating mode.
The diamond-shaped concrete pipe pile, the diamond-shaped concrete pipe pile die, the preparation and installation method provided by the invention are used as a steel pipe pile enclosure wall with lock catches of a foundation pit enclosure structure or a cofferdam in hydraulic engineering, can not only be used for retaining soil, but also can be used for effectively retaining water. The precast concrete pipe pile with the hidden lock catch is provided for pile foundation engineering, foundation pit engineering, hydraulic engineering, military engineering, traffic engineering and disaster prevention and reduction engineering. The hidden lock catch precast concrete pipe pile is convenient to process, store and transport and install. Can expand wider application range and market space for steel.
Drawings
FIG. 1 is a schematic view of a cross-sectional view of a diamond-shaped concrete pile according to the present invention;
FIG. 2 is a schematic view of the steel end plate of the diamond-shaped concrete pile of the present invention;
FIG. 3 is a schematic structural view of a diamond-shaped concrete pipe pile die of the present invention;
FIG. 4 is a schematic view of the concrete mix cast in step 1) of the diamond-shaped concrete pile preparation and installation method of the present invention;
FIG. 5 is a schematic view of the method for preparing and installing diamond-shaped concrete pipe piles according to the present invention, in which the upper half mold and the lower half mold are fastened to each other in step 1);
FIG. 6 is a schematic view of the diamond-shaped concrete pipe pile forming in the diamond-shaped concrete pipe pile die in step 2) of the diamond-shaped concrete pipe pile manufacturing and installing method of the present invention;
FIG. 7 is a schematic diagram of the connection of two diamond-shaped concrete pipe piles in step 7) of the method for preparing and installing diamond-shaped concrete pipe piles according to the present invention;
fig. 8 is an enlarged schematic view of the position a in fig. 7.
Detailed Description
In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 2, the diamond-shaped concrete pipe pile provided by the present invention includes a pipe pile body 2 with two hidden latches 1 on both sides, and a connecting piece 3 connected to any one of the latches 1.
The transverse section of the tubular pile body 2 is square, the tubular pile body 2 is diamond-shaped by rotating 45 degrees around the central axis of the central hole, and the four right-angle positions of the tubular pile body 2 are respectively perpendicular to the diagonal line of the tubular pile body 2 and are provided with passivation edges 4.
The two lock catches 1 are respectively arranged on the passivation edges 4 on the left side and the right side along the longitudinal height direction of the tubular pile body 2, and the cross section of each lock catch 1 is provided with a rectangular cavity with a notch and a binding edge which is connected with the notch and extends to the passivation edges 4 outwards. The cross section of the shackle 1 is symmetrical about both the left and right diagonal and the front and rear diagonal.
The outer length S1 of the transverse cross section of the tubular pile body 2 is set to 0.9m, the diameter D of the central hole is set to 0.6mm, and the length S2 of the passivation edge 4 is set to 0.1mm.
The length of the rectangular cavity of the section of the lock catch 1 is 104mm, the width of the rectangular cavity of the section of the lock catch 1 is 10mm, the width of the notch is 20mm, and the distance from the notch to the outer side to the passivation edge 4 is 136mm.
The longitudinal height H of the tubular pile body 2 is set to 15m. Both end portions of the tubular pile body 2 are provided with steel end plates 5, the longitudinal height (thickness) of the steel end plates 5 is set to 20mm, and the plane contour of the steel end plates 5 is identical to the transverse section solid contour of the tubular pile body 2.
The section of the connecting piece 3 is set to be a metal component which is bilaterally symmetrical left and right and front and back, and is an H-shaped section component formed by pasting webs of U-shaped section components which are formed by bending two steel plates with the thickness of 8mm, the lengths of wing plates on two sides of the H-shaped section are 100mm, the widths of the wing plates on two sides are 8mm, and the widths of the webs of the wing plates on two sides are 16mm and the lengths of the webs are 284mm.
Referring to fig. 3, the diamond-shaped concrete pile mold 200 provided by the present invention includes an upper mold half 6 and a lower mold half 7 disposed in mirror symmetry with the upper mold half 6, wherein the upper mold half 6 and the lower mold half 7 are fastened to each other.
The upper half mould 6 comprises two upper steel plates 601 which are mutually perpendicular and connected, the section formed by the two upper steel plates 601 is an isosceles right triangle without a bottom edge, the opening of the position without the bottom edge is downward, and the positions of three corners are all provided with passivation edges.
An upper locating plate 602 in the vertical direction is connected to the right angle position where the two upper steel plates 601 are connected, and the upper locating plate 602 is used for being sleeved into a lock catch 1.
The outer side of the upper half mould 6 is provided with an upper half running wheel 8 at intervals of 2m in the longitudinal direction, and the upper half mould 6 is connected with the upper half running wheel 8 through an upper rib plate 9.
The lower half die 7 comprises two lower steel plates 701 which are mutually perpendicularly connected, the section formed by the two lower steel plates 701 is in the shape of an isosceles right triangle without a bottom edge, the opening of the position without the bottom edge is upward, and the positions of three corners are all provided with passivation edges.
A lower positioning plate 702 in the vertical direction is connected to the right-angle position where the two lower steel plates 701 are connected, and the lower positioning plate 702 is used to be sleeved into the other lock catch 1.
The outer side of the lower half die 7 is provided with a lower half running wheel 10 at intervals of 2m in the longitudinal direction, and the lower half die 7 is connected with the lower half running wheel 10 through a lower rib plate 11.
The cross-sectional widths of the upper and lower positioning plates 602, 702 are set to 20mm, and the cross-sectional lengths of the upper and lower positioning plates 602, 702 are set to 146mm.
The shell of the lock catch 1 is made of engineering plastic, and the outline of the inner edge of the section of the shell is the same as that of the outer edge of the lock catch 1. The housing of one latch 1 is inserted under the upper positioning plate 602 with the notch direction facing upward and the housing of the other latch 1 is inserted under the lower positioning plate 702 with the notch direction facing downward, and the housing wall thickness of latch 1 is set to 5mm.
Referring to fig. 4 to 8, the method for preparing and installing a diamond-shaped concrete pipe pile provided by the present invention adopts a diamond-shaped concrete pipe pile mold 100, which comprises the following steps:
1) After the concrete mixture 12 is poured into the lower half mould 7, the upper half mould 6 and the lower half mould 7 are mutually buckled to form a complete diamond-shaped concrete pipe pile mould 100, the outline of the inner edge of the diamond-shaped concrete pipe pile mould 100 is the same as the outline of the outer edge of the diamond-shaped concrete pipe pile 200, and the upper half running wheel 8 and the lower half running wheel 10 are mutually buckled to form a complete running wheel;
2) Compacting and molding the concrete mixture 12 in the diamond-shaped concrete pipe pile die 100 in a centrifugal or vibrating mode, and primarily curing;
3) The diamond-shaped concrete pipe pile mould 100 is disassembled and split into an upper half mould 6 and a lower half mould 7, wherein the upper positioning plate 602 and the lower positioning plate 702 do not obstruct the disassembly of the diamond-shaped concrete pipe pile mould 100, so that the lock catches 1 sleeved on the upper positioning plate 602 and the lower positioning plate 702 are hidden in the passivation edges 4 on the left side and the right side of the diamond-shaped concrete pipe pile 200;
4) Repeating the steps 1) to 3) to prepare a plurality of diamond-shaped concrete pipe piles 200;
5) Vertically sinking a first diamond-shaped concrete pipe pile 201 on the ground surface horizontal plane;
6) The connecting piece 3 is vertically inserted into the top end of the right side lock catch 1 of the first diamond-shaped concrete pipe pile 201, the left side of the connecting piece 3 is hidden in the right side lock catch 1 of the first diamond-shaped concrete pipe pile 201, the right side of the connecting piece 3 is exposed in the soil, and the top end of the connecting piece 3 is higher than the ground;
7) The left lock catch 1 of the second diamond-shaped concrete pipe pile 202 is engaged with the right top end of the connecting piece 3, and vertically sunk into the second diamond-shaped concrete pipe pile 202, so that the right side of the connecting piece 3 is hidden in the left lock catch 1 of the second diamond-shaped concrete pipe pile 202;
8) And 5) repeating the steps 5) to 7), and finally realizing mutual engagement among the plurality of diamond-shaped concrete pipe piles 200 to vertically sink into the surface level surface in sequence.
In addition, both the lock catch 1 and the connector 3 are hidden in the diamond-shaped concrete pipe pile 200 except for a wide gap of about 10mm formed by the web length tolerance of the connector 3. In sections where corrosion or water resistance is required, the gap formed by the web length tolerance of the connector 3 may be provided with a resilient water barrier 13 as a supplementary concealing measure.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (12)
1. A diamond-shaped concrete pipe pile mould for preparing diamond-shaped concrete pipe piles is characterized in that: the diamond-shaped concrete pipe pile comprises a pipe pile body with lock catches at two sides and a connecting piece connected in the lock catches;
the transverse section of the tubular pile body is square, the tubular pile body rotates 45 degrees around the central axis of the central hole to form a diamond shape, and four right-angle positions of the tubular pile body are perpendicular to the diagonal line of the tubular pile body to form passivation edges;
the lock catches are respectively arranged on the passivation edges at two opposite sides;
the connecting piece is connected in any lock catch,
the diamond-shaped concrete pipe pile die comprises an upper half die and a lower half die which are arranged in a mirror symmetry mode, wherein the upper half die and the lower half die are mutually buckled;
the upper half mould comprises two upper steel plates which are mutually and vertically connected, the sections of the two upper steel plates are arranged to be isosceles right triangles without bottom edges, the opening is downward, and the three corner positions are all arranged to be passivation edges;
an upper locating plate in the vertical direction is connected to the right-angle position where the two upper steel plates are connected, and the upper locating plate is used for placing one lock catch;
the outer edge of the upper half die is provided with an upper half running wheel, and the upper half die is connected with the upper half running wheel through an upper rib plate;
the lower half die comprises two lower steel plates which are mutually and perpendicularly connected, the sections of the two lower steel plates are isosceles right triangles without bottom edges, the openings are upward, and the three corner positions are all provided with passivation edges;
a lower locating plate in the vertical direction is connected to the right-angle position where the two lower steel plates are connected, and the lower locating plate is used for placing the other lock catch;
the outer edge of the lower half die is provided with a lower half running wheel, and the lower half die is connected with the lower half running wheel through a lower rib plate.
2. The diamond-shaped concrete pipe pile die according to claim 1, wherein: the outer length S1 of the transverse section of the tubular pile body is set to be more than or equal to 0.4m and less than or equal to S1 and less than or equal to 4m;
the diameter D of the central hole of the tubular pile body is set to be less than or equal to 2/3 x S1;
the length S2 of the passivation edge is set to be S2 less than or equal to 1/5 x S1.
3. The diamond-shaped concrete pipe pile die according to claim 2, wherein: the cross section of the lock catch is provided with a polygonal or circular cavity with a notch and a binding connected to the notch and extending to the passivation edge outwards.
4. A diamond-shaped concrete pipe pile die according to claim 3, wherein: the maximum diagonal length or the circular diameter of the polygon of the lock catch section is equal to 1/6-1/12 of the outer edge length S1;
the outward extending length of the notch of the lock catch section is equal to 1/6-1/12 of the outer edge length S1;
the width of the notch of the lock catch section is equal to 1/3-1/12 of the outward extension length of the notch of the lock catch section.
5. The diamond-shaped concrete pipe pile die according to claim 4, wherein: the longitudinal height H of the tubular pile body is set to be more than or equal to 2m and less than or equal to 80m.
6. The diamond-shaped concrete pipe pile die according to claim 4, wherein: the shell of the lock catch is made of engineering plastic or metal, and the wall thickness of the shell of the lock catch is 3-20 mm.
7. The diamond-shaped concrete pipe pile die according to claim 1, wherein: the two ends of the tubular pile body are respectively provided with a steel end plate, the longitudinal height of each steel end plate is 10-40 mm, and the plane profile of each steel end plate is identical to the transverse section profile of the tubular pile body.
8. The diamond-shaped concrete pipe pile die according to claim 5, wherein: the section of the connecting piece is provided with a metal member which is bilaterally symmetrical left and right and front and back, and both wings of the connecting piece are provided with enlarged heads, and the size of the enlarged heads is matched with the size of the cavity of the lock catch;
the longitudinal height of the connecting piece is larger than, smaller than or equal to the longitudinal height of the tubular pile body.
9. The diamond-shaped concrete pipe pile die according to claim 1, wherein: the section widths of the upper positioning plate and the lower positioning plate are equal to the gap width of the lock catch section;
the section length of the upper locating plate and the lower locating plate is greater than the outward extending length of the notch of the lock catch section.
10. A preparation and installation method of diamond-shaped concrete pipe piles is characterized by comprising the following steps: a diamond-shaped concrete pipe pile mould according to any one of claims 1 to 9, comprising the steps of:
1) After pouring concrete mixture in the lower half mould, mutually buckling the upper half mould and the lower half mould to form the diamond-shaped concrete pipe pile mould;
2) Compacting and forming the concrete mixture in the diamond-shaped concrete pipe pile mould;
3) Dismantling the diamond-shaped concrete pipe pile die, and splitting the diamond-shaped concrete pipe pile die into the upper half die and the lower half die, so that the lock catches placed on the upper positioning plate and the lower positioning plate are installed in the passivation edges on two opposite sides of the diamond-shaped concrete pipe pile;
4) Repeating the steps 1) to 3) to prepare a plurality of diamond-shaped concrete pipe piles;
5) Vertically sinking a first diamond-shaped concrete pipe pile on the ground surface horizontal plane;
6) Inserting one side of the connecting piece into the lock catch on the adjacent side of the first diamond-shaped concrete pipe pile, wherein the top end of the connecting piece is exposed out of the ground;
7) Engaging the lock catch on the other side of the second diamond-shaped concrete pipe pile with the adjacent side of the connecting piece, and vertically sinking the second diamond-shaped concrete pipe pile into the ground surface horizontal plane;
8) And 5) repeating the steps 5) to 7), and vertically sinking the plurality of diamond-shaped concrete pipe piles into the ground surface horizontal plane sequentially by mutual occlusion.
11. The method for preparing and installing the diamond-shaped concrete pipe pile according to claim 10, wherein the method comprises the following steps: elastic water-proof strips are also arranged in gaps among the diamond-shaped concrete pipe piles.
12. The method for preparing and installing the diamond-shaped concrete pipe pile according to claim 10, wherein the method comprises the following steps: in the step 2), the diamond-shaped concrete pipe pile die compactly forms the concrete mixture in a centrifugal or vibrating mode.
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| CN202011123131.0A CN114378938B (en) | 2020-10-20 | 2020-10-20 | Rhombic concrete pipe pile, mould for rhombic concrete pipe pile, preparation and installation method |
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| CN202011123131.0A CN114378938B (en) | 2020-10-20 | 2020-10-20 | Rhombic concrete pipe pile, mould for rhombic concrete pipe pile, preparation and installation method |
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