CN215105458U - High cantilever pile foundation joist - Google Patents
High cantilever pile foundation joist Download PDFInfo
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- CN215105458U CN215105458U CN202121178449.9U CN202121178449U CN215105458U CN 215105458 U CN215105458 U CN 215105458U CN 202121178449 U CN202121178449 U CN 202121178449U CN 215105458 U CN215105458 U CN 215105458U
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- joist
- pile foundation
- pile
- foundation
- retaining wall
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Abstract
The utility model relates to a high cantilever pile foundation joist, belonging to the technical field of roadbed retaining, comprising a pile foundation (5), a joist (2) and a weighing barricade (1); the pile foundations (5) are fixed in the foundation at intervals, the joists (2) are transversely fixed at the top of each pile foundation (5), and the constant-weight retaining walls (1) are fixed on the joists (2); the pile foundation (5) is connected with the joist (2) in a pouring manner, and the joist (2) is connected with the constant weight retaining wall (1) in a pouring manner; the utility model discloses an off-load effect of weighing type barricade (1) has reduced the height of cantilever, makes the very big reduction of pile bolck displacement, and the anchor length of pile foundation (5) is corresponding to be reduced, has guaranteed a fender height simultaneously, effectively receives the slope, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the road bed fender, specific theory relates to a high cantilever pile foundation joist.
Background
In railway, municipal and highway engineering construction, a slope-collecting retaining measure is often set for a filling roadbed or a steep slope roadbed section, and the common modes at present mainly comprise a retaining wall, a pile foundation joist retaining wall, a pile plate wall and the like. For a section with a large height difference, if a pile plate wall is arranged, the cantilever of the anti-slide pile is high, the displacement of the pile top is large, and in order to solve the problems, a large section pile diameter is needed, so that the method is poor in economy; if the pile foundation joist retaining wall is adopted, the height of the retaining wall is larger, and the masonry amount is also larger.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model provides a high-cantilever pile foundation joist,
through the unloading effect of the weight-balanced retaining wall, the height of the cantilever is reduced, the displacement of the pile top is greatly reduced, the anchoring length of the slide-resistant pile is correspondingly reduced, the supporting height is ensured, the slope is effectively collected, and the practicability is high.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a high cantilever pile foundation joist comprises a pile foundation, a joist and a balance weight type retaining wall; the pile foundations are anchored in the foundation at equal intervals, the joist is transversely fixed at the top of each pile foundation, and the constant-weight retaining wall is fixed on the joist; and the pile foundation is connected with the joist, the joist and the constant weight retaining wall in a pouring manner.
Preferably, a soil guard plate is provided between the ground line and the joist between two adjacent piles.
Preferably, the steel bars at the top of the pile foundation are inserted into the joists and connected in a pouring mode.
Preferably, the top of the joist is provided with a connecting steel bar which is connected with the balance weight type retaining wall in a pouring way.
The utility model has the advantages that:
the utility model discloses a structure, through the off-load effect of weighing apparatus formula barricade, has reduced the height of cantilever, makes the very big reduction of pile bolck displacement, and the anchor length of friction pile correspondingly reduces, has guaranteed a fender height simultaneously, effectively receives the slope, and the cost is lower, and can reach comparable engineering effect, and the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a left side view of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1-2, the embodiment of the present invention provides a high cantilever pile foundation joist, which comprises a pile foundation 5, a joist 2, a constant weight retaining wall 1 and a retaining plate 3. The pile foundations 5 are fixed in foundation rock soil at equal intervals, the joist 2 is transversely fixed at the top of each pile foundation 5, and the constant weight type retaining wall 1 is fixed on the joist 2. And the pile foundation 5 is connected with the joist 2, the joist 2 and the balance weight type retaining wall 1 in a pouring manner. The cantilever length of the pile foundation 5 is reduced to the top of the joist by the retaining wall top, the cantilever length of the pile foundation 5 is effectively reduced, the displacement of the pile top is reduced, the partial soil pressure of the height of the cantilever is reduced, and the downward pressing effect of soil filling on the weighing platform and the backward movement of the gravity center of the whole wall are facilitated through the upper wall of the weighing retaining wall 1.
The pile foundations 5 are arranged in parallel at the road shoulder, and a soil blocking plate 3 is arranged between the two adjacent pile foundations 5 and between the ground line 4 and the joist 2.
The top steel bar of the pile foundation 5 is inserted into the joist 2 for pouring connection, so that the connection structure is more stable. The top of the joist 2 is provided with a connecting steel bar to be poured and connected with the balance weight type retaining wall 1, so that the friction force is increased, and the stability of the balance weight type retaining wall 1 is facilitated.
The utility model discloses a work progress:
firstly, the pile foundation 5 is positioned in a plane, a pile well is excavated, the pile foundation 5 reinforced concrete is poured, the ground part is poured by synchronous vertical templates after the underground part is poured, and the reserved extension steel bar is connected with the joist 2.
Secondly, binding a joist 2 reinforcement cage after the pile foundation 5 concrete reaches 75% of the design strength; the steel bars of the joist 2 are fixedly connected with the exposed main steel bars of the pile foundation 5.
Thirdly, inserting the connecting steel bars after pouring concrete on the joist 2 for 1-2 h, and taking the condition that the steel bars are not sunk as the standard;
and fourthly, pouring the weight-balancing retaining wall 1 by using a vertical mold.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a high cantilever pile foundation joist which characterized in that: comprises a pile foundation (5), a joist (2) and a balance weight type retaining wall (1); the pile foundations (5) are anchored in the foundation, the joists (2) are transversely fixed at the tops of the pile foundations (5), and the balance weight type retaining walls (1) are fixed on the joists (2); the pile foundation (5) is connected with the joist (2), the joist (2) is connected with the constant weight retaining wall (1) in a pouring mode.
2. The high cantilever pile foundation joist of claim 1, wherein: and a soil retaining plate (3) is arranged between the two adjacent pile foundations (5) and between the ground line (4) and the joist (2).
3. A high-cantilever pile foundation joist according to claim 1 or 2, characterised in that: and top steel bars of the pile foundation (5) are inserted into the joist (2) for pouring connection.
4. The high cantilever pile foundation joist of claim 1, wherein: the top of the joist (2) is provided with a connecting steel bar which is connected with the constant weight retaining wall (1) in a pouring way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121178449.9U CN215105458U (en) | 2021-05-29 | 2021-05-29 | High cantilever pile foundation joist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121178449.9U CN215105458U (en) | 2021-05-29 | 2021-05-29 | High cantilever pile foundation joist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215105458U true CN215105458U (en) | 2021-12-10 |
Family
ID=79301444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121178449.9U Active CN215105458U (en) | 2021-05-29 | 2021-05-29 | High cantilever pile foundation joist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215105458U (en) |
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2021
- 2021-05-29 CN CN202121178449.9U patent/CN215105458U/en active Active
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