CN114718057B - Secant pile unit, partition wall and construction process thereof - Google Patents
Secant pile unit, partition wall and construction process thereof Download PDFInfo
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- CN114718057B CN114718057B CN202210563820.6A CN202210563820A CN114718057B CN 114718057 B CN114718057 B CN 114718057B CN 202210563820 A CN202210563820 A CN 202210563820A CN 114718057 B CN114718057 B CN 114718057B
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- 238000005192 partition Methods 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 72
- 235000013372 meat Nutrition 0.000 claims abstract description 56
- 235000013311 vegetables Nutrition 0.000 claims abstract description 37
- 238000011065 in-situ storage Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 40
- 230000002787 reinforcement Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
Abstract
The application relates to the technical field of bridge construction, in particular to a secant pile unit, a partition wall and a construction process thereof, wherein the secant pile unit comprises a cast-in-situ meat pile and two prefabricated vegetable piles; the two prefabricated plain piles are symmetrically arranged on a plane where the central axis of the cast-in-situ meat pile is positioned, two engagement notches are formed in the peripheral side of the prefabricated plain piles, and one engagement notch is matched with and fixedly connected with the peripheral side of the cast-in-situ meat pile; according to the designed occluding pile unit, the partition wall and the construction process thereof, through the precast plain piles with the occluding gaps which are poured in advance, concrete of two adjacent plain piles can be prevented from being cut when holes for accommodating cast-in-situ meat piles are drilled, so that the waste of concrete in the construction process of the occluding piles is reduced, meanwhile, the two plain piles are manufactured in a precast mode, conventional concrete is used, the construction time is saved, and the extra cost caused by using ultra-retarding concrete is saved.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a secant pile unit, a partition wall and a construction process thereof.
Background
The scouring of river water or flood is one of the important reasons for causing the uneven settlement of bridge foundation and even the exposure of the substrate, and greatly threatens the safety of the upper structure of the bridge and even causes the collapse of the bridge, so in the reinforcement of the bridge foundation, the occluding piles are mostly used as a supporting structure, the circumference of the part between adjacent concrete row piles is embedded, and the reinforcing steel bar cage is inserted into the piles which are constructed in the following sequence in a staggered manner, so that the integral continuous waterproof and soil retaining enclosure structure with good seepage prevention effect is formed.
The occlusion pile is a foundation pit enclosure structure which is formed by mutual occlusion arrangement between piles, the arrangement mode of the piles is that one pile is not reinforced, super retarding plain concrete pile (A pile) and one steel reinforced concrete pile (B pile) are arranged at intervals (construction by a full casing drill), during construction, the A pile is firstly constructed, the B pile is then constructed, construction of the B pile is completed after the concrete of the A pile is initially set and before final set, the A pile and the B pile are all constructed by the full casing drill, and concrete of an intersection part of the adjacent A piles is cut off, so that occlusion is realized.
In view of the above related art, the inventor considers the designed construction method of the secant pile, and the cast-in part of the concrete in the pile a is cut off in the construction process of the pile B, which causes the waste of the concrete.
Disclosure of Invention
In order to reduce the waste of concrete in the construction process of the secant pile, the application provides a secant pile unit, a partition wall and a construction process thereof, and adopts the following technical scheme:
in a first aspect, the present application provides a pile-engaging unit, which adopts the following technical scheme:
a secant pile unit comprises a cast-in-situ meat pile and two prefabricated vegetable piles;
the two prefabricated vegetable piles are symmetrically arranged on the plane where the central axis of the cast-in-situ meat pile is located, two engagement notches are formed in the outer peripheral side of the prefabricated vegetable pile, and one engagement notch is matched with and fixedly connected with the outer peripheral side of the cast-in-situ meat pile.
By adopting the technical scheme, a hole for accommodating the prefabricated element pile is drilled on a construction site by utilizing the full-casing drilling machine, then the prefabricated element pile is placed into a drilling casing of the full-casing drilling machine through hoisting equipment, and the drilling casing is gradually pulled out along with the lowering of the prefabricated element pile until the prefabricated element pile is lowered to the bottom of the hole; then moving the full sleeve drilling machine according to the design gauge, drilling another hole for accommodating the prefabricated vegetable pile, repeating the step of lowering the prefabricated vegetable pile until the prefabricated vegetable pile is lowered to the bottom of the hole, drilling a hole for accommodating the cast-in-situ meat pile according to the design gauge between the two holes, placing a reinforcement cage into the hole, and casting concrete into the hole to form the cast-in-situ meat pile; according to the designed occluding pile unit, through the precast plain piles with the occluding gaps which are poured in advance, concrete of two adjacent plain piles can be prevented from being cut when holes for accommodating cast-in-situ meat piles are drilled, so that the waste of concrete in the construction process of the occluding piles is reduced, meanwhile, the two plain piles are manufactured in a precast mode, the conventional concrete is used, the construction time is saved, and the extra cost caused by using ultra-retarding concrete is saved.
Optionally, the prefabricated element pile comprises a column body and two partition strips;
the two partition strips are symmetrically arranged on a plane where the central axis of the cylinder is located, and the partition strips are integrally connected with the cylinder.
By adopting the technical scheme, the prefabricated vegetable pile is convenient to control the flowing range of concrete when the cast-in-situ meat pile is poured through the column body and the two partition strips.
Optionally, the cylinder comprises a cylindrical section and a plurality of annular sections;
the annular sections are distributed along the axial direction of the cylindrical section, the annular sections are coaxially arranged with the cylindrical section, the outer diameter of the annular sections is larger than that of the cylindrical section, the annular sections are integrally connected with the cylindrical section, and the engagement notch is formed in the annular sections.
Through adopting above-mentioned technical scheme, the cylinder of design is convenient for form a plurality of cavities that are convenient for concrete flow through cylinder section and annular section and partition strip, simultaneously, through a plurality of annular sections that set up along cylinder axis direction, can separate into each cavity from the axis direction in hole with the hole that is used for holding prefabricated plain stake, avoids the mutual interference between two adjacent cavities in the maximum.
Optionally, the cavity formed by the annular section, the cylindrical section and the partition strip is filled with a first concrete connecting piece.
By adopting the technical scheme, the first concrete connecting piece can further improve the connection strength between the cast-in-situ meat pile and the prefabricated plain pile.
In a second aspect, the present application provides a construction process of a pile unit, including the following process steps:
s1: manufacturing a reinforcement cage and manufacturing a prefabricated plain pile;
s2: punching and pile-down: drilling two pile accommodating holes for accommodating the prefabricated pile manufactured in the step S1 on a construction site, and lowering the two prefabricated piles into the pile accommodating holes;
s3: punching and cast-in-situ: and (2) drilling a meat pile accommodating hole between the two vegetable pile accommodating holes in the step (S2), putting the reinforcement cage manufactured in the step (S1) into the meat pile accommodating hole, pouring concrete into the meat pile accommodating hole, simultaneously pulling out the sleeve for meat pile drilling section by section, and pouring the concrete into the meat pile accommodating hole into the cavity formed by the annular section, the cylindrical section and the partition strip until the first concrete connecting piece is formed.
By adopting the technical scheme, a reinforcement cage in a cast-in-situ meat pile is manufactured in advance, two prefabricated vegetable piles are cast, then a first vegetable pile accommodating hole for accommodating the prefabricated vegetable piles is drilled on a construction site by means of a full sleeve drilling machine, the prefabricated vegetable piles are hoisted into a vegetable pile drilling sleeve by means of hoisting equipment, the outer peripheral side of an annular section and one side of a partition strip away from a cylindrical section are slidingly connected with the inner periphery of the vegetable pile drilling sleeve, the vegetable pile drilling sleeve is gradually pulled out of the vegetable pile accommodating hole while the prefabricated vegetable piles are gradually lowered to the bottom of the vegetable pile accommodating hole until the prefabricated vegetable piles are lowered to the bottom of the vegetable pile accommodating hole, the full sleeve drilling machine is moved to an adjacent drilling hole, and another vegetable pile accommodating hole is drilled again and the prefabricated vegetable piles are lowered; then a meat pile accommodating hole is drilled between two vegetable pile accommodating holes, then the manufactured reinforcement cage is put down into the meat pile accommodating hole, concrete is poured into the meat pile accommodating hole, meanwhile the meat pile is pulled out section by the concrete for drilling, the concrete poured into the meat pile accommodating hole flows into a cavity formed by the annular section, the cylindrical section and the partition strip under the action of gravity and the upper layer concrete pressure until a first concrete connecting piece is formed to fixedly connect the prefabricated vegetable pile with the cast-in-situ meat pile; the construction process of the designed secant pile unit can reduce the waste of concrete in the construction process of the secant pile while saving the construction time of the secant pile, and can strengthen the connection strength between the prefabricated plain pile and the cast-in-situ pile.
In a third aspect, the present application provides a partition wall, which adopts the following technical scheme:
a partition wall comprises at least two secant pile units, wherein two adjacent secant pile units are fixedly connected through a second concrete connecting piece.
Through adopting above-mentioned technical scheme, the partition wall of design, through interlock stake unit and the second concrete connecting piece that is used for connecting two adjacent interlock stake units, can form the whole waterproof, the soil retaining enclosure partition wall that keeps off that has good prevention of seepage effect.
Optionally, the horizontal section of the partition wall presents a shape of a straight line, a broken line or a square.
By adopting the technical scheme, the designed horizontal section shape is a straight line, a broken line or a square partition wall, so that different enclosure requirements of a construction site can be met.
In a fourth aspect, the present application provides a construction process of a partition wall, including the following construction process steps:
s1: manufacturing at least two occluding pile units;
s2: and (3) filling concrete into the gaps between two adjacent precast plain piles in the adjacent two occluding pile units manufactured in the step (S1) until the second concrete connecting piece is formed.
By adopting the technical scheme, the construction of two adjacent occluding pile units is completed on a construction site, then concrete is poured into a gap between two adjacent prefabricated piles in the two adjacent occluding pile units, and the concrete is poured into a cavity surrounded by a cylindrical section, an annular section and a partition strip in the two adjacent prefabricated piles to form a second concrete connecting piece; the designed construction process of the partition wall is convenient for connecting two adjacent occluding pile units into a whole, thereby forming the integral continuous waterproof retaining and enclosing partition wall with good seepage prevention effect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the designed occluding pile unit, through the precast plain piles with the occluding gaps which are cast in advance, concrete of two adjacent plain piles can be prevented from being cut when holes for accommodating cast-in-situ meat piles are drilled, so that the waste of the concrete in the construction process of the occluding piles is reduced, meanwhile, the two plain piles are manufactured in a precast mode, and the conventional concrete is used, so that the construction time is saved, and the extra cost caused by using ultra-retarding concrete is saved;
2. the designed construction process of the occluding pile unit can reduce the waste of concrete in the construction process of the occluding pile while saving the construction time of the occluding pile, and can strengthen the connection strength between the prefabricated pile and the cast-in-situ pile;
3. the designed partition wall can form the integral continuous waterproof and soil-retaining enclosure partition wall with good seepage prevention effect through the secant pile units and the second concrete connecting pieces for connecting the two adjacent secant pile units.
Drawings
FIG. 1 is a schematic view showing the overall structure of a bite pile unit according to embodiment 1 of the present application;
FIG. 2 is a schematic view of a pile unit according to embodiment 1 of the present application in a soil layer;
FIG. 3 is a schematic view showing the overall structure of a partition wall according to embodiment 3 of the present application;
FIG. 4 is a schematic plan view of a horizontal cross section of example 3 of the present application;
fig. 5 is a schematic view of a pile unit according to embodiment 3 of the present application in a soil layer.
Reference numerals: 1. casting a meat pile in situ; 2. prefabricating a plain pile; 21. a column; 211. a cylindrical section; 212. an annular section; 22. a partition strip; 23. a bite notch; 24. a first concrete connection; 3. a plain pile accommodating hole; 4. meat pile containing holes; 5. and a second concrete connecting piece.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
In a first aspect, embodiments of the present application disclose a bite pile unit.
Embodiment 1 of the application discloses a secant pile unit.
Referring to fig. 1 and 2, a snap pile unit includes a cast-in-place meat pile 1 and two prefabricated element piles 2, the two prefabricated element piles 2 are symmetrically arranged about a vertical plane where a central axis of the cast-in-place meat pile 1 is located, the prefabricated element piles 2 include a column 21 and two partition strips 22, the two partition strips 22 are symmetrically arranged about the vertical plane where the central axis of the column 21 is located, and the partition strips 22 and the column 21 are integrally cast and formed, in the application, the partition strips 22 can be arranged along an axial direction of the column 21, can be distributed along a radial direction of the column 21 while being arranged along the axial direction of the column 21, and can be arranged in a zigzag shape on an outer peripheral side of the column 21, and in the embodiment, the partition strips 22 are arranged along the axial direction of the column 21.
Referring to fig. 1 and 2, the column 21 includes a cylindrical section 211 and a plurality of annular sections 212, the plurality of annular sections 212 are distributed along the axial direction of the cylindrical section 211, and the annular sections 212 are coaxially arranged with the cylindrical section 211, the outer diameter of the annular sections 212 is larger than that of the cylindrical section 211, and the annular sections 212 and the cylindrical section 211 are integrally cast, two engagement notches 23 are formed in the annular sections 212, the two engagement notches 23 are respectively located on two opposite sides of the plane where the two partition strips 22 are located, and one engagement notch 23 is matched with the outer circumferential side of the cast-in-situ meat pile 1 and is connected through concrete.
Referring to fig. 1 and 2, the cavity formed by the annular section 212, the cylindrical section 211 and the partition strip 22 is filled with a first concrete joint 24, and the first concrete joint 24 is formed of concrete that flows into the cavity when the meat pile is cast in place.
The implementation principle of the construction process of the occluding pile unit in the embodiment 1 of the application is as follows: and (3) firstly drilling a pile accommodating hole 3 for accommodating the prefabricated pile 2 on a construction site by using a full-casing drilling machine, then placing the prefabricated pile 2 into a drilling casing of the full-casing drilling machine through hoisting equipment, and gradually pulling out the drilling casing along with the lowering of the prefabricated pile 2 until the prefabricated pile 2 is lowered to the bottom of the pile accommodating hole 3.
Then moving the full sleeve drilling machine according to the design gauge, drilling another vegetable pile accommodating hole 3 for accommodating the prefabricated vegetable pile 2, repeating the step of lowering the prefabricated vegetable pile 2 until the prefabricated vegetable pile 2 is lowered to the bottom of the vegetable pile accommodating hole 3, drilling a meat pile accommodating hole 4 for accommodating the cast-in-situ meat pile 1 according to the design gauge between the two vegetable pile accommodating holes 3, putting a reinforcement cage into the meat pile accommodating hole 4, and casting concrete into the meat pile accommodating hole 4 to form the cast-in-situ meat pile 1.
While pouring the cast-in-situ meat pile 1, the concrete in the meat pile accommodating hole 4 flows into the cavity surrounded by the cylindrical section 211, the annular section 212 and the partition strip 22 along the gap to form a first concrete connecting piece 24 until the cavity is filled with the concrete.
In a second aspect, embodiment 2 of the present application discloses a construction process of a pile unit, including the following construction process steps:
s1: manufacturing a reinforcement cage and manufacturing a prefabricated plain pile 2 in the engaged pile unit according to the embodiment 1 of the application;
s2: punching and pile-down: firstly drilling a pile accommodating hole 3 for accommodating the prefabricated pile 2 manufactured in the step S1 on a construction site by means of a full-casing drilling machine, then lowering the prefabricated pile 2 into a casing for pile drilling by means of hoisting equipment, simultaneously pulling out the casing for pile drilling section by section until the prefabricated pile 2 is lowered to the bottom of the pile accommodating hole 3, and then lowering another adjacent prefabricated pile 2 into another pile accommodating hole 3 by means of the same construction step;
s3: punching and cast-in-situ: and (2) drilling a meat pile accommodating hole 4 between the two vegetable pile accommodating holes 3 in the step (S2), putting the reinforcement cage manufactured in the step (S1) into the meat pile accommodating hole 4, pouring concrete into the meat pile accommodating hole 4, simultaneously pulling out the sleeve for meat pile drilling section by section, and flowing the concrete poured into the meat pile accommodating hole 4 into the cavity formed by the annular section 212, the cylindrical section 211 and the partition strip 22 until the first concrete connecting piece 24 is formed.
In a third aspect, embodiment 3 of the present application discloses a partition wall.
Embodiment 3 of the present application discloses a partition wall.
Referring to fig. 3, 4 and 5, a partition wall includes at least two secant pile units as disclosed in embodiment 1 of the present application, and two adjacent secant pile units are fixedly connected by a second concrete connecting member 5, and concrete poured into a gap between two adjacent precast piles 2 between two adjacent secant pile units forms the second concrete connecting member 5; the horizontal section of the partition wall can be in a straight line, a broken line or a square shape; in this example 3, only a case where the partition wall has a square horizontal cross-sectional shape is shown.
The implementation principle of the partition wall of the embodiment 3 of the application is as follows: and manufacturing two occluding pile units on a construction site, and then forming a second concrete connecting piece 5 by filling concrete into a gap between two adjacent prefabricated element piles 2 between two adjacent occluding pile units until the horizontal section shape and the overall length of the partition wall meet the site construction requirement.
In a fourth aspect, embodiment 4 of the present application discloses a construction process of a partition wall, including the following construction process steps:
s1: making at least two keying pile units as described in example 1 of the present application;
s11: manufacturing a reinforcement cage and manufacturing a prefabricated plain pile 2 in the engaged pile unit according to the embodiment 1 of the application;
s12: punching and pile-down: firstly drilling a pile accommodating hole 3 for accommodating the prefabricated pile 2 manufactured in the step S1 on a construction site by means of a full-casing drilling machine, then lowering the prefabricated pile 2 into a casing for pile drilling by means of hoisting equipment, simultaneously pulling out the casing for pile drilling section by section until the prefabricated pile 2 is lowered to the bottom of the pile accommodating hole 3, and then lowering another adjacent prefabricated pile 2 into another pile accommodating hole 3 by means of the same construction step;
s13: punching and cast-in-situ: and (2) drilling a meat pile accommodating hole 4 between the two vegetable pile accommodating holes 3 in the step (S2), putting the reinforcement cage manufactured in the step (S1) into the meat pile accommodating hole 4, pouring concrete into the meat pile accommodating hole 4, simultaneously pulling out the sleeve for meat pile drilling section by section, and flowing the concrete poured into the meat pile accommodating hole 4 into the cavity formed by the annular section 212, the cylindrical section 211 and the partition strip 22 until the first concrete connecting piece 24 is formed.
S2: and (2) filling concrete into the gaps between two adjacent precast plain piles 2 in the adjacent two engaged pile units manufactured in the step (S1) until the second concrete connecting piece 5 is formed.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. The occluding pile unit is characterized by comprising a cast-in-situ meat pile (1) and two prefabricated vegetable piles (2);
two prefabricated vegetable piles (2) are symmetrically arranged on a plane where the central axis of the cast-in-situ meat pile (1) is located, two engagement notches (23) are formed in the peripheral side of the prefabricated vegetable piles (2), and one engagement notch (23) is matched with and fixedly connected with the peripheral side of the cast-in-situ meat pile (1);
the prefabricated pile (2) comprises a column body (21) and two partition strips (22);
the two partition strips (22) are symmetrically arranged on a plane where the central axis of the column body (21) is located, and the partition strips (22) are integrally connected with the column body (21);
the cylinder (21) comprises a cylindrical section (211) and a plurality of annular sections (212);
the annular sections (212) are distributed along the axial direction of the cylindrical section (211), the annular sections (212) and the cylindrical section (211) are coaxially arranged, the outer diameter of the annular sections (212) is larger than that of the cylindrical section (211), the annular sections (212) and the cylindrical section (211) are integrally connected, and the engagement notch (23) is formed in the annular sections (212);
the cavity formed by the annular section (212), the cylindrical section (211) and the partition strip (22) is filled with a first concrete connecting piece (24).
2. The construction process of the occluding pile unit is characterized by comprising the following construction process steps of:
s1: manufacturing a reinforcement cage and manufacturing a prefabricated plain pile (2) of the engaged pile unit according to claim 1;
s2: punching and pile-down: drilling two pile accommodating holes (3) for accommodating the prefabricated piles (2) manufactured in the step S1 on a construction site, and lowering the two prefabricated piles (2) into the pile accommodating holes (3);
s3: punching and cast-in-situ: and (2) drilling a meat pile accommodating hole (4) between the two vegetable pile accommodating holes (3) in the step (S2), and putting the reinforcement cage manufactured in the step (S1) into the meat pile accommodating hole (4), then pouring concrete into the meat pile accommodating hole (4), simultaneously pulling out the sleeve for meat pile drilling section by section, and flowing the concrete poured into the meat pile accommodating hole (4) into a cavity formed by the annular section (212), the cylindrical section (211) and the partition strip (22) until the first concrete connecting piece (24) is formed.
3. A partition wall, characterized in that: comprising at least two secant pile units according to claim 1, and the adjacent two secant pile units are fixedly connected by means of a second concrete connection (5).
4. A partition wall according to claim 3, wherein: the horizontal section of the partition wall presents a shape of a straight line, a broken line or a square.
5. The construction process of the partition wall is characterized by comprising the following construction process steps of:
s1: making at least two snap-pile units according to claim 1;
s2: and (3) filling concrete into the gaps between two adjacent precast plain piles (2) in the adjacent two occluding pile units manufactured in the step (S1) until a second concrete connecting piece (5) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210563820.6A CN114718057B (en) | 2022-05-23 | 2022-05-23 | Secant pile unit, partition wall and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210563820.6A CN114718057B (en) | 2022-05-23 | 2022-05-23 | Secant pile unit, partition wall and construction process thereof |
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| CN114718057A CN114718057A (en) | 2022-07-08 |
| CN114718057B true CN114718057B (en) | 2023-12-26 |
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| KR100824399B1 (en) * | 2006-11-28 | 2008-04-22 | 유창건설(주) | Jig for setting a steel pipe pile |
| CN104131567A (en) * | 2013-05-02 | 2014-11-05 | 上海城地建设股份有限公司 | Novel waterstop prefabricated centrifugal rectangular pile retaining structure and construction method thereof |
| CN104863120A (en) * | 2015-05-13 | 2015-08-26 | 中国建筑第八工程局有限公司 | Occlusive pile construction method and prefabricated occlusive piles used for method |
| KR101662091B1 (en) * | 2016-01-29 | 2016-10-05 | (주)서현컨스텍 | Water proofing wallusing internal water proof member and the structure construction method therewith |
| CN210684722U (en) * | 2019-08-26 | 2020-06-05 | 深圳市大升高科技工程有限公司 | Deep foundation pit supporting structure next to subway |
| CN211257009U (en) * | 2019-11-16 | 2020-08-14 | 王水利 | Waterproof curtain secant pile |
| CN111042119A (en) * | 2019-12-18 | 2020-04-21 | 付志成 | Prefabricated part, occlusive pile and construction method of occlusive pile |
| CN111021338A (en) * | 2019-12-30 | 2020-04-17 | 深圳市市政设计研究院有限公司 | Occlusive pile and construction method thereof |
| CN113668557A (en) * | 2021-08-18 | 2021-11-19 | 中铁第四勘察设计院集团有限公司 | Steel sleeve for plain pile construction of secant pile, secant pile and secant pile construction method |
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