CN111395331A - Artificial-hole-digging rectangular-section anchoring pile assembled retaining wall and construction process thereof - Google Patents
Artificial-hole-digging rectangular-section anchoring pile assembled retaining wall and construction process thereof Download PDFInfo
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- CN111395331A CN111395331A CN202010344957.3A CN202010344957A CN111395331A CN 111395331 A CN111395331 A CN 111395331A CN 202010344957 A CN202010344957 A CN 202010344957A CN 111395331 A CN111395331 A CN 111395331A
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
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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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses an anchor pile assembled type retaining wall with a rectangular cross section for manual hole digging and a construction process thereof. The retaining wall is a rectangular structure formed by splicing a plurality of U-shaped well plate prefabricated members and a plane well plate prefabricated member, the U-shaped well plate prefabricated members enable splicing seams of the retaining wall to be located on the plane of the pile well to reduce internal force borne by the retaining wall, the filler ensures close adhesion between the retaining wall and the well wall, and the section size is reduced.
Description
Technical Field
The invention relates to the field of railway, highway, municipal administration and ground disaster remediation, in particular to an artificial hole digging rectangular cross-section anchoring pile assembled retaining wall and a construction process thereof.
Background
The rectangular cross-section anchor pile is widely applied to the fields of railway, highway and municipal slope retaining protection and ground disaster remediation in China. At present, most of rectangular cross-section anchor piles are constructed by manual hole digging, pile wells collapse or permeate water to prevent large deformation of well walls in construction engineering, safety of constructors is guaranteed, pile diameter side walls generally need to be provided with retaining wall protection, and conventional retaining walls are used for on-site formwork erection and pouring of reinforced concrete. The conventional retaining wall has the following defects: 1. steel bars need to be bound on site, and templates need to be erected and dismantled, so that the process is multiple; 2. the cast-in-place concrete reaches the strength, generally over 7 days, so that the excavation from the pile well is exposed to the retaining wall to play a protection function, the time consumption is long, the well wall is greatly deformed, and the risk of pile well collapse or water permeation is large.
In the prior art, a prefabricated assembled steel retaining wall structure is proposed by domestic technicians, but the structure needs to be poured with concrete in the steel retaining wall in order to solve the rigidity problem of the steel retaining wall, and the technology actually only solves the defects of conventional retaining wall formwork erection and formwork removal. Prefabricated concrete dado has also been proposed by the skilled person, but the technique can only be applied to circular section piles. The rectangular cross-section anchoring pile for the retaining structure is large in cross-sectional size, the internal force (bending moment and shearing force) borne by the retaining wall in the pile well excavation process is far larger than that of a circular cross section, and the technology is not applicable.
Disclosure of Invention
The invention aims to: aiming at the problem that the prefabricated spliced concrete retaining wall in the prior art is not suitable for a rectangular-section pile, the assembled retaining wall for the anchor pile with the rectangular section and the manual hole digging and the construction process thereof are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
an assembled retaining wall of an anchor pile with a rectangular cross section for manual hole digging comprises a connecting piece and a well sheet prefabricated piece, wherein the well sheet prefabricated piece is positioned on a well wall;
the well plate prefabricated parts comprise two U-shaped well plate prefabricated parts and two plane well plate prefabricated parts, and the two U-shaped well plate prefabricated parts and the two plane well plate prefabricated parts are spliced into a rectangular structure along the circumferential direction of the pile well;
the two U-shaped well plate prefabricated parts and the two plane well plate prefabricated parts are connected with each other through a connecting piece;
and a filler is poured between the outer side of the well sheet prefabricated part and the well wall.
Through the structure, the protecting wall is of a rectangular structure formed by splicing a plurality of U-shaped well sheet prefabricated parts and plane well sheet prefabricated parts, the U-shaped well sheet prefabricated parts and the plane well sheet prefabricated parts are spliced into a whole through connecting pieces, the U-shaped well sheet prefabricated parts are adopted to enable splicing seams of the U-shaped well sheet prefabricated parts and the plane well sheet prefabricated parts to be located on a pile well plane, the splicing seams of the well wall can be guaranteed to avoid four corners with stress concentration structurally, the internal force applied to the protecting wall in the pile well excavation process is reduced, the close adhesion between the protecting wall and the well wall is guaranteed by the filler between the rectangular protecting wall and the rectangular well wall, the gap and the cross-sectional size between the protecting wall and the well wall are reduced, when the rectangular protecting wall protects the well wall of a rectangular cross-section pile, the working procedures are reduced, the efficiency is improved, and the rectangular protecting wall is suitable for manual hole.
As a preferable scheme of the invention, the U-shaped well plate prefabricated member is arranged on the short side outer wall of the anchor pile well, and the plane well plate prefabricated member is arranged on the long side outer wall of the anchor pile well. Through above-mentioned structure, U type well piece prefab sets up and is being gone into the well relatively easy short lateral wall hoist and mount, and the structure size of U type well piece prefab in the well is rich in the allowance great, makes things convenient for construction operation.
As a preferred scheme of the invention, two ends of the U-shaped well plate prefabricated member are provided with a first staggered platform and a first reserved hole, two ends of the plane well plate prefabricated member are provided with a second staggered platform and a second reserved hole, axes of the first reserved hole and the second reserved hole are positioned on the same straight line, the shape of the first staggered platform is matched with that of the second staggered platform, and the connecting piece penetrates through the first reserved hole and the second reserved hole to fixedly connect the U-shaped well plate prefabricated member and the plane well plate prefabricated member. Through the structure, the U-shaped well plate prefabricated member and the plane well plate prefabricated member are spliced together to form a complete rectangular protective wall.
As a preferable scheme of the invention, the plane well plate prefabricated member is provided with a bolt groove, the axis of the bolt groove and the axes of the first preformed hole and the second preformed hole are positioned on the same straight line, and the end parts of the first preformed hole and the second preformed hole are positioned on the side wall of the bolt groove. Through the structure, the connecting piece can enter the bolt groove through the first preformed hole and the second preformed hole.
As a preferable aspect of the present invention, the connecting member includes a connecting bolt.
According to the preferable scheme, the number of the well sheet prefabricated members is at least two, the at least two groups of well sheet prefabricated members are arranged along the vertical direction of the pile well, hoisting holes are formed in the U-shaped well sheet prefabricated members and the plane well sheet prefabricated members, and the hoisting holes are through holes. Through above-mentioned structure, pour the filler through the hole for hoist between dado and the wall of a well, the filler can further strengthen being connected between U type well piece prefab and plane well piece prefab and the wall of a well, has reduced cross-sectional dimension.
As a preferable scheme of the invention, the retaining wall further comprises a pile well locking opening, the pile well locking opening is fixed on a pile well mouth, and the pile well locking opening is arranged at the top of the retaining wall. Through above-mentioned structure, prevent that stake well head from collapsing.
An assembly type retaining wall construction process for an anchor pile with a rectangular cross section for manual hole digging comprises the following steps:
s1: constructing a pile well locking opening;
s2: excavating a pile well;
s3: leveling the part of the bottom of the pile well foundation pit corresponding to the retaining wall;
s4: installing the two U-shaped well plate prefabricated parts in place;
s5: installing the two plane well plate prefabricated parts in place;
s6: installing a connecting piece between the adjacent U-shaped well plate prefabricated members and the plane prefabricated members and screwing the connecting piece;
s7: filling filler into a gap between the retaining wall and the wall of the pile well;
s8: and repeating the steps S3 to S9 until the design elevation of the pile bottom is reached.
The construction process is used for effectively realizing the functions of the retaining wall, can be quickly assembled on site, reduces the working procedures, is convenient to operate, improves the efficiency, and is suitable for well wall protection of manual hole digging rectangular-section piles in various soil layers.
As a preferred aspect of the present invention, in step S1, U-shaped well plate preforms and flat well plate preforms are prefabricated at a prefabrication yard and then transported to a pile well location.
As a preferred embodiment of the present invention, in step S6, after the two planar well plate preforms are installed in place, a diagonal brace is disposed outside the planar well plate preforms.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the retaining wall is a rectangular structure formed by splicing a plurality of U-shaped well sheet prefabricated members and plane well sheet prefabricated members, the U-shaped well sheet prefabricated members and the plane well sheet prefabricated members are spliced into a whole through connecting pieces, splicing seams of the U-shaped well sheet prefabricated members and the plane well sheet prefabricated members are positioned on a pile well plane by adopting the U-shaped well sheet prefabricated members, the splicing seams of the well wall can be ensured to avoid four corners with stress concentration on the structure, the internal force applied to the retaining wall in the pile well excavation process is reduced, the close adhesion between the retaining wall and the well wall is ensured by filling materials between the rectangular retaining wall and the rectangular well wall, the gap and the section size between the retaining wall and the well wall are reduced, when the rectangular retaining wall protects the well wall of a rectangular section pile, the working procedures are reduced, the efficiency is improved, and the rectangular retaining wall is suitable for protecting the well wall of various soil layer.
The construction process is used for effectively realizing the function of the retaining wall, can be quickly assembled on site, reduces the working procedures, is convenient to operate, improves the efficiency, and is suitable for protecting the outer wall of the pile well of the pile with the rectangular cross section and manually dug in various soil layers.
Drawings
Fig. 1 is a schematic structural view of an assembled retaining wall of an anchor pile with a rectangular cross section and manually excavated according to the invention.
Fig. 2 is a cross-sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic structural diagram of a U-shaped well plate preform according to the present invention.
Fig. 4 is a schematic structural diagram of a planar well plate preform according to the present invention.
Icon: 1-pile well; 2-U-shaped well plate prefabricated parts; 3-a planar well plate prefabricated part; 41-first slab staggering; 42-second staggering; 5-connecting bolts; 6 a-first preformed hole; 6 b-second preformed hole; 7-bolt slot; 8-hoisting holes; 9-well wall; 10-locking of the pile well; 11-anchor rod; 12-a filler.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 1 to 4, the present embodiment provides a fabricated retaining wall of an anchor pile with a rectangular cross section for artificial excavation, which comprises a connecting piece and a well plate prefabricated member;
the well piece prefabricated member sets up on the wall of a well 9, the quantity of well piece prefabricated member is at least two sets ofly, at least two sets of well piece prefabricated members set up along 1 vertical direction in stake well, a set of well piece prefabricated member includes two U type well piece prefabricated members 2 and two plane well piece prefabricated members 3, U type well piece prefabricated member 2 sets up on the short lateral wall of stake well 1, plane well piece prefabricated member 3 sets up on the long lateral wall of stake well 1, two U type well piece prefabricated members 2 and two plane well piece prefabricated members 3 splice into the rectangle along stake well 1 circumferential direction, and form complete rectangle structure through the connecting piece, specifically, the connecting piece is connecting bolt 5, U type well piece prefabricated member 2 and plane well piece prefabricated member 3 are the reinforced concrete material, well piece prefabricated member thickness generally is 0.3-0.5m, the length of every group well piece prefabricated member is 1-2 m.
The retaining wall also comprises two pile well locking openings 10, the number of the pile well locking openings 10 is two, the pile well locking openings are respectively and fixedly arranged at two ends of the pile well opening, and the pile well locking openings 10 are arranged at the top of the retaining wall.
Two ends of the U-shaped well piece prefabricated member 2 are provided with a first staggered platform 41 and a first reserved hole 6a, two ends of the plane well piece prefabricated member 3 are provided with a second staggered platform 42 and a second reserved hole 6b, the axes of the first reserved hole 6a and the second reserved hole 6b are located on the same straight line, the first staggered platform 41 is matched with the shape of the second staggered platform 42, the connecting bolt 5 penetrates through the first reserved hole 6a and the second reserved hole 6b to connect the U-shaped well piece prefabricated member 2 and the plane well piece prefabricated member 3 together, specifically, the connecting bolt 5 is generally arranged in each meter extending along the depth direction of the pile well 1, the connecting bolt 5 is arranged close to the inner side of the pile well 1, and the thickness of the concrete protective layer outside the first reserved hole 6a and the second reserved hole 6b is generally 5-7 cm.
The plane well plate prefabricated part 3 is provided with a bolt groove 7 along the horizontal direction, the axis of the bolt groove 7 and the axes of the first preformed hole 6a and the second preformed hole 6b are positioned on the same straight line, and the end parts of the first preformed hole 6a and the second preformed hole 6b are positioned on the side wall of the bolt groove 7.
And hoisting holes 8 are formed in the U-shaped well sheet prefabricated part 2 and the plane well sheet prefabricated part 3, and a filler 12 is poured between the protecting wall and the well wall 9 through the hoisting holes 8, wherein the filler 12 specifically comprises cement mortar or clean slurry.
The embodiment also provides a construction process of the fabricated retaining wall of the anchor pile with the rectangular cross section for manual hole digging, which comprises the following steps:
s1: constructing a pile well locking opening 10;
specifically, the U-shaped well plate prefabricated parts 2 and the plane well plate prefabricated parts 3 are prefabricated in a centralized manner in a prefabricated field, the prefabricated parts are transported to the positions of anchor piles after the strength meets the requirements, and pile-well locking openings 10 are constructed according to the traditional manual hole digging pile process;
s2: excavating a pile well 1;
specifically, the excavation depth of each batch of the pile well 1 is consistent with the length of the standard knot of the prefabricated spliced retaining wall, generally 1-2m, and the section size of the excavation of the pile well 1 is 2-5m larger than the outer contour of the retaining wall;
s3: leveling the part of the bottom of the foundation pit of the pile well 1 corresponding to the retaining wall;
specifically, the part of the bottom of the foundation pit of the pile well 1 corresponding to the retaining wall is leveled by adopting medium coarse sand or cement mortar;
s4: installing the two U-shaped well plate prefabricated parts 2 in place;
specifically, two U-shaped well plate prefabricated parts 2 are respectively hoisted into the bottom of a pile well 1 by adopting a crane and are installed in place;
s5: installing the two plane well plate prefabricated parts 3 in place;
specifically, two plane well plate prefabricated members 3 are respectively hung into the bottom of the pile well 1 by a crane and are installed in place, and the plane well plate prefabricated members 3 are prevented from inclining by arranging inclined struts;
s6: installing and screwing down a connecting piece;
specifically, the connecting bolt 5 is installed and screwed;
s7: filling filler 12 into a gap between the retaining wall and the wall of the pile well 1;
specifically, cement mortar is poured into a gap between the retaining wall and the wall of the pile well 1 through the hoisting hole 8, and an anchor rod 11 is driven into the hoisting hole 8 to enhance the stability of the retaining wall structure of the weak stratum section;
s8: and repeating the steps S3 to S9 until the design elevation of the pile bottom is reached.
The embodiment provides an artificial hole rectangular cross section anchor pile assembled dado and construction process's beneficial effect lies in:
the retaining wall is a rectangular structure formed by splicing a plurality of U-shaped well sheet prefabricated parts 2 and a planar well sheet prefabricated part 3, the U-shaped well sheet prefabricated parts 2 and the planar well sheet prefabricated part 3 are spliced into a whole through connecting pieces, the U-shaped well sheet prefabricated parts 2 and the planar well sheet prefabricated part 3 are spliced into a whole through the U-shaped well sheet prefabricated parts 2, splicing seams of the retaining wall are positioned on the plane of the pile well 1, the splicing seams of the retaining wall can be positioned at the position with the minimum internal force of the structure, the internal force borne by the retaining wall in the excavation process of the pile well 1 is reduced, the packing 12 between the rectangular retaining wall and the rectangular well wall ensures the close adhesion between the retaining wall and the well wall, the gap and the cross-section size between the retaining wall and the well wall are reduced, when the rectangular retaining wall protects a rectangular cross-section pile, the working procedures are reduced, the efficiency is improved, and;
the U-shaped well sheet prefabricated part 2 is arranged on the outer wall of the short side, and is easy to hoist and lower into the well, and the structural size allowance of the U-shaped well sheet prefabricated part 2 in the well is large, so that construction operation is facilitated;
the filler 12 can further strengthen the connection between the U-shaped well plate prefabricated member 2 and the plane well plate prefabricated member 3 and the well wall;
the pile well locking opening 10 prevents the collapse of the well head of the pile well 1;
the anchor rod 11 can further enhance the bearing capacity of the retaining wall and reduce the deformation of the retaining wall, and meanwhile, the anchor rod 11 can further enhance the connection between the U-shaped well sheet prefabricated member 2 and the plane well sheet prefabricated member 3 and the pile well 1 and prevent the outer wall of the pile well from being contused;
the construction process is used for effectively realizing the function of the retaining wall, can be quickly assembled on site, reduces the working procedures, is convenient to operate, improves the efficiency, and is suitable for pile well external protection of manual hole digging rectangular section piles in various soil layers.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The assembled retaining wall of the anchor pile with the rectangular cross section for manual hole digging is characterized by comprising a connecting piece and a well sheet prefabricated piece, wherein the well sheet prefabricated piece is positioned on a well wall (9);
the well plate prefabricated member comprises two U-shaped well plate prefabricated members (2) and two plane well plate prefabricated members (3), and the two U-shaped well plate prefabricated members (2) and the two plane well plate prefabricated members (3) are spliced into a rectangular structure along the circumferential direction of the pile well (1);
the two U-shaped well plate prefabricated parts (2) and the two plane well plate prefabricated parts (3) are connected with each other through the connecting piece;
and a filler (12) is poured between the outer side of the well sheet prefabricated part and the well wall (9).
2. An artificial dug rectangular section anchor pile fabricated dado according to claim 1, characterized in that the U-shaped well plate prefabricated member (2) is arranged on the short side outer wall of the anchor pile well, and the plane well plate prefabricated member (3) is arranged on the long side outer wall of the anchor pile well.
3. The assembled retaining wall of an anchor pile with a rectangular section for artificial hole digging according to claim 1 is characterized in that a first staggered platform (41) and a first reserved hole (6a) are arranged at two ends of the U-shaped well plate prefabricated member (2), a second staggered platform (42) and a second reserved hole (6b) are arranged at two ends of the plane well plate prefabricated member (3), the axes of the first reserved hole (6a) and the second reserved hole (6b) are located on the same straight line, the shape of the first staggered platform (41) is matched with that of the second staggered platform (42), and the connecting piece penetrates through the reserved hole (6) to fixedly connect the U-shaped well plate prefabricated member (2) and the plane well plate prefabricated member (3).
4. A fabricated retaining wall for an artificial excavated rectangular section anchor pile according to claim 3, characterized in that the planar well plate prefabricated member (3) is provided with a bolt groove (7), the axis of the bolt groove (7) is in the same line with the axis of the first and second prepared holes (6a, 6b), and the ends of the first and second prepared holes (6a, 6b) are located on the side wall of the bolt groove (7).
5. A fabricated retaining wall of an anchor pile with a rectangular cross-section for artificial excavation according to claim 3, characterized in that the connecting member comprises a connecting bolt (5).
6. The assembled retaining wall for the artificial dug rectangular-section anchor pile of claim 1, wherein the number of the well plate prefabricated members is at least two, at least two groups of the well plate prefabricated members are arranged along the vertical direction of the pile well (1), hoisting holes (8) are formed in the U-shaped well plate prefabricated member (2) and the plane well plate prefabricated member (3), and the hoisting holes (8) are through holes.
7. An artificial excavation rectangular section anchor pile fabricated retaining wall according to claim 1, characterized by further comprising a pile well locking notch (10), the pile well locking notch (10) is fixed at the mouth of the pile well (1), and the pile well locking notch (10) is arranged at the top of the retaining wall.
8. The construction process of the assembled retaining wall of the anchor pile with the rectangular cross section for manually digging the hole is characterized by comprising the following steps of:
s1: constructing a pile well locking opening (10);
s2: excavating a pile well (1);
s3: leveling the part of the foundation pit bottom of the pile well (1) corresponding to the retaining wall;
s4: installing the two U-shaped well plate prefabricated parts (2) in place;
s5: installing the two plane well plate prefabricated parts (3) in place;
s6: installing a connecting piece between the adjacent U-shaped well plate prefabricated members (2) and the plane well plate prefabricated members (3) and screwing down;
s7: filling filler (12) into a gap between the retaining wall and the wall of the pile well (1);
s8: and repeating the steps S3 to S9 until the design elevation of the pile bottom is reached.
9. The fabricated retaining wall construction process for artificial excavation rectangular section anchor piles according to claim 8, wherein in the step S1, the U-shaped well plate prefabricated members (2) and the plane well plate prefabricated members (3) are prefabricated in a prefabricated yard and then transported to the position of the pile well (1).
10. The assembly type retaining wall construction process of artificial excavation rectangular section anchor pile according to claim 8, characterized in that, in step S6, after two prefabricated planar sheets (3) are installed in place, a diagonal brace is arranged outside the prefabricated planar sheets (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344957.3A CN111395331A (en) | 2020-04-27 | 2020-04-27 | Artificial-hole-digging rectangular-section anchoring pile assembled retaining wall and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010344957.3A CN111395331A (en) | 2020-04-27 | 2020-04-27 | Artificial-hole-digging rectangular-section anchoring pile assembled retaining wall and construction process thereof |
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| CN111395331A true CN111395331A (en) | 2020-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115198742A (en) * | 2022-07-06 | 2022-10-18 | 国网福建省电力有限公司经济技术研究院 | Assembled retaining wall for manually excavated foundation and construction method thereof |
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2020
- 2020-04-27 CN CN202010344957.3A patent/CN111395331A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115198742A (en) * | 2022-07-06 | 2022-10-18 | 国网福建省电力有限公司经济技术研究院 | Assembled retaining wall for manually excavated foundation and construction method thereof |
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