CN211113669U - Prestressed reinforced concrete breast wall pile - Google Patents
Prestressed reinforced concrete breast wall pile Download PDFInfo
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- CN211113669U CN211113669U CN201921909807.1U CN201921909807U CN211113669U CN 211113669 U CN211113669 U CN 211113669U CN 201921909807 U CN201921909807 U CN 201921909807U CN 211113669 U CN211113669 U CN 211113669U
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Abstract
The utility model discloses a prestressed reinforcement concrete dado pile, the vertical main atress reinforcing bar that is close to pile back of the body soil body one side in the pile body of single dado pile adopts prestressing force twisted steel, encloses into with all the other vertical ordinary atress reinforcing bars in the pile, vertical structure reinforcing bar and indulges the muscle. Each prestressed threaded steel bar is sleeved in a steel sleeve respectively, and the steel sleeve is welded on the inner side of each reinforcing stirrup in the horizontal direction; and the other longitudinal common stressed steel bars N2 and the longitudinal structural steel bars N3 are respectively welded between the outer side of each reinforcing stirrup N4 in the horizontal direction and the inner side of the spiral steel bar N5 to form a steel bar cage. The utility model discloses when can guarantee that the dado pile receives soil body horizontal force, the pile body concrete does not ftracture, improves the rigidity of dado pile, reduces the cost of dado pile, reduces the lateral deformation of dado pile by a wide margin, effectively avoids because of the dorsal part of stake to the various underground pipe fracture of dado pile top that warp and arouse, the potential safety hazard of adjacent building fracture, the safety of the various pipeline of dado pile top and adjacent building of improvement.
Description
Technical Field
The utility model belongs to the technical field of side slope and excavation supporting, a prestressed reinforcement concrete dado pile that municipal works, housing construction engineering used especially.
Background
Along with the development of urban construction industry, municipal engineering and house building engineering projects are increasing day by day, and slope and foundation pit excavation support are main contents and important links frequently used in the projects.
At present, side slope and foundation pit support generally adopts support forms such as retaining wall piles, steel sheet piles, suspended net shotcrete and the like. If the common reinforced concrete retaining wall pile is adopted for supporting, lateral deformation is easily generated under the conditions of water and soil saturation and soil pressure increase after the pile, so that potential safety hazards such as cracking, leakage and adjacent building cracking caused by underground pipeline fracture can cause sinking and collapse of a pile top road. Therefore, it is necessary to research a prestressed reinforced concrete retaining pile with firm connection.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a prestressed reinforcement concrete dado pile, when guaranteeing that the dado pile receives soil body horizontal force, the pile body concrete does not ftracture, effectively improve the rigidity of dado pile, reduce the cost of dado pile, reduce the lateral deformation of dado pile, thereby effectively avoid because of the dorsal part of stake to the various underground pipe fracture in dado pile top that warp and arouse, potential safety hazards such as adjacent building fracture, improve the safety of the various pipelines in dado pile top and adjacent building, and simple structure, and easy and simple to handle.
The utility model discloses an above-mentioned technical problem is solved to following technical scheme:
a prestressed reinforced concrete retaining pile features that the prestressed screw steel bars are used to surround the longitudinal steel bars and other ordinary longitudinal stressed steel bars and longitudinal structural steel bars in the pile body of single retaining pile.
Each prestressed threaded steel bar is sleeved in a steel sleeve respectively, and the steel sleeve is welded on the inner side of each reinforcing stirrup in the horizontal direction; the inner sides of each of the other longitudinal common stressed steel bars and each of the longitudinal structural steel bars are respectively welded to the outer sides of the reinforcing stirrups in the horizontal direction.
The outer sides of each longitudinal common stressed steel bar and each longitudinal structural steel bar are respectively welded with the inner sides of the spiral steel bars to form a steel bar cage.
The steel reinforcement cage is arranged in the pile hole, and the pile body is poured with concrete.
The retaining wall pile is provided with a plurality of, establishes the fender apron between two adjacent pile bodies, forms the campshed promptly.
The utility model has the advantages as follows:
the utility model discloses a when the prestressed reinforcement concrete dado pile can guarantee that the dado pile receives soil body horizontal force, the pile body concrete does not ftracture, effectively improves the rigidity of dado pile, reduces the cost of dado pile, reduces the lateral deformation of dado pile by a wide margin to effectively avoid because of the dorsal part of stake to the various underground pipe fracture in dado pile top that warp and the potential safety hazards such as adjacent building fracture, greatly improve the safety of the various pipelines in dado pile top and adjacent building.
Drawings
FIG. 1 is a schematic diagram of a vertical section reinforcement of a prestressed reinforced concrete retaining wall pile of the present invention;
FIG. 2 is a schematic cross-sectional view of 1-1 of FIG. 1;
fig. 3 is a schematic view of the spatial arrangement of fig. 1.
Wherein: a is a retaining plate, B is the ground outside the pile top, C is the ground or pit bottom, D: pile back soil body, N1, longitudinal main stressed steel bars, N2, longitudinal common stressed steel bars, N3, longitudinal construction steel bars, N4, reinforcing stirrups, N5, spiral steel bars, N6: and (5) a pile body.
Detailed Description
The following detailed description of the embodiments of the prestressed reinforced concrete retaining pile according to the present invention is made with reference to the accompanying drawings, but not limited to the scope of the claims of the present invention.
As shown in fig. 1 to 3, in a prestressed reinforced concrete retaining pile, a longitudinal main stressed steel bar N1 in a pile body N6 of a single retaining pile, which is close to one side D of a pile back soil body, namely an area I (the angle is more than or equal to 60 degrees and less than or equal to 120 degrees, namely the circumference of 1/6 to 1/3), adopts prestressed threaded steel bars, and surrounds longitudinal bars with longitudinal common stressed steel bars N2 and longitudinal structural steel bars N3 in the rest areas ii, iii and iv.
Each longitudinal main stressed steel bar N1 in the area I is respectively sleeved in a steel sleeve, the set length of the steel sleeve is from the ground B outside the pile top, the bottom end of the steel sleeve reaches the ground or below a pit bottom surface C, and the steel sleeve is welded on the inner side of each reinforcing stirrup N4 in the horizontal direction; and the other longitudinal common stressed steel bars N2 and the longitudinal structural steel bars N3 are respectively welded between the outer side of each reinforcing stirrup N4 in the horizontal direction and the inner side of the spiral steel bar N5 to form a steel bar cage. The steel reinforcement cage is hung and suspended in the pile hole, then concrete is poured into the pile body, after the concrete reaches the designed strength, the longitudinal main stress steel bar N1 is tensioned through tensioning equipment, and then the anchoring end is fixed, so that a single pile body of the retaining pile is formed.
And repeating the construction of each pile body and each section of the retaining plate between two adjacent pile bodies, wherein the retaining wall piles are connected with the retaining plate, and thus, the retaining wall pile row pile or the pile plate type retaining wall is formed.
The utility model relates to a prestressed reinforcement concrete dado pile uses the construction steps in municipal works, housing construction engineering:
first, preparation of the previous stage
1. Before municipal works and house building engineering construction are started, an excavation plan and a construction scheme of each foundation pit are prepared in advance and pass review.
2. The preparation, the report and the examination and approval of various construction data, materials and machines.
(II) construction steps:
1. surveying the terrain again; 2. leveling the field; 3. paying off the center positions of the side lines and the piles in an excavation mode; 4. drilling a pile mechanical in-situ; 5. mechanically forming a hole; 6. manufacturing and hoisting a reinforcement cage; 7. pouring concrete to form a pile; 8. stretching the prestressed twisted steel; 9. constructing a retaining plate A between every two adjacent retaining wall piles; 10. and (5) excavating soil bodies on the side slope and the foundation pit free face.
The concrete construction method of the above 5 th to 8 th steps is as follows:
1. drilling a mechanical hole (a prestressed reinforced concrete breast wall pile hole) by a pile drilling machine;
2. mounting and welding prestressed twisted steel bars to manufacture a steel bar cage;
3. hoisting a reinforcement cage in the pile hole and fixing the elevation position of the reinforcement cage according to a design drawing;
4. pouring concrete to form a pile (prestressed reinforced concrete breast wall pile body);
5. maintaining each retaining wall pile to reach the design strength;
6. stretching and fixing the prestressed twisted steel;
7. and grouting concrete into the steel sleeve of the prestressed twisted steel, and filling the concrete to the head end and the tail end of the sleeve to seal the sleeve.
Claims (5)
1. A prestressed reinforced concrete dado pile is characterized in that: the longitudinal main stressed steel bars close to one side of the pile back soil body in the pile body of a single retaining wall pile adopt prestressed threaded steel bars, and the prestressed threaded steel bars, other longitudinal common stressed steel bars and longitudinal structural steel bars in the pile are encircled to form longitudinal steel bars.
2. The prestressed reinforced concrete retaining wall pile of claim 1, wherein: each prestressed threaded steel bar is sleeved in a steel sleeve respectively, and the steel sleeve is welded on the inner side of each reinforcing stirrup in the horizontal direction; the inner sides of each of the other longitudinal common stressed steel bars and each of the longitudinal structural steel bars are respectively welded to the outer sides of the reinforcing stirrups in the horizontal direction.
3. The prestressed reinforced concrete retaining wall pile as recited in claim 2, wherein: the outer sides of each longitudinal common stressed steel bar and each longitudinal structural steel bar are respectively welded with the inner sides of the spiral steel bars to form a steel bar cage.
4. The prestressed reinforced concrete retaining wall pile as recited in claim 3, wherein: the steel reinforcement cage is arranged in the pile hole, and the pile body is poured with concrete.
5. The prestressed reinforced concrete retaining wall pile of claim 1, wherein: the retaining wall pile is provided with a plurality of, establishes the fender apron between two adjacent pile bodies, forms the campshed promptly.
Priority Applications (1)
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CN201921909807.1U CN211113669U (en) | 2019-11-07 | 2019-11-07 | Prestressed reinforced concrete breast wall pile |
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CN201921909807.1U CN211113669U (en) | 2019-11-07 | 2019-11-07 | Prestressed reinforced concrete breast wall pile |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111945742A (en) * | 2020-08-13 | 2020-11-17 | 兰州交通大学 | Unilateral prestressing force fender pile |
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2019
- 2019-11-07 CN CN201921909807.1U patent/CN211113669U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111945742A (en) * | 2020-08-13 | 2020-11-17 | 兰州交通大学 | Unilateral prestressing force fender pile |
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