CN212405104U - Combined pile and foundation pit support structure using same - Google Patents
Combined pile and foundation pit support structure using same Download PDFInfo
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- CN212405104U CN212405104U CN202020573755.1U CN202020573755U CN212405104U CN 212405104 U CN212405104 U CN 212405104U CN 202020573755 U CN202020573755 U CN 202020573755U CN 212405104 U CN212405104 U CN 212405104U
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Abstract
The utility model relates to a combined pile and a foundation pit support structure using the combined pile, wherein the combined pile comprises an H-shaped steel pile body and a sheet pile body; the width of the sheet pile body is larger than that of the flange of the H-shaped steel pile body, and the sheet pile body is fixedly connected to the outer side of the flange of the H-shaped steel pile body. The foundation pit support structure comprises combined piles and steel sheet piles which are alternately arranged in sequence. The utility model discloses can enough improve the bulk stiffness in the foundation ditch envelope work progress, also can use the preparation that current material realized the composite pile to reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the technique of foundation ditch enclosure and specifically relates to a combination pile and use foundation ditch envelope of this combination pile is related to.
Background
In the construction process of foundation engineering, the enclosure structure of the foundation pit needs to be tracked to ensure that the interior of the foundation pit can normally operate. The combined pile enclosure is the most common one of foundation pit enclosure structures, and comprises a Larsen steel combined pile enclosure structure, a pile in a PC construction method, a pile in an HU construction method and the like.
The Larsen steel composite pile is convenient to construct, but the resistance strength to the soil side pressure after the construction is finished is not high, and the Larsen steel composite pile is not suitable for use when the depth of a foundation pit is too large. And the defects of insufficient rigidity of the Larsen steel combined pile are correspondingly solved by the PC construction method pile and the HU construction method pile.
For example, chinese patent with an authorization publication number of CN207749511U discloses a combined steel composite pile envelope. The utility model comprises an H-shaped steel and a hat-shaped steel plate which are alternately arranged and connected in parallel; the H-shaped steel comprises a web plate, a short flange plate and a long flange plate which are perpendicular to the web plate, and a first buckling part and a first locking part are respectively arranged on the two side edges of the long flange plate; the cap-shaped steel plate comprises a central web, the edges of two sides of the central web are inclined towards the same side of the central web respectively and extend outwards to form oblique shoulders, the two oblique shoulders are arranged in a mode that the central axis of the central web is used as axial symmetry, the edges of the two oblique shoulders extend outwards horizontally to form extension arms, the edges of the two extension arms are respectively provided with a second buckling part and a second locking part and are connected with the first buckling part and the first locking part in a matched mode.
The above prior art solutions have the following drawbacks: because the length of the H-shaped steel towards the long flange of the foundation pit is long, the H-shaped steel can cause deformation of the long flange in the soil body driving process, the later-stage Larsen steel combined pile cannot be centered in the driving process, and the construction difficulty is high.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, one of the purposes of the utility model is to provide a combination pile, its effect that has reinforcing bulk rigidity and reduces construction cost.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a composite pile comprises an H-shaped steel pile body and a sheet pile body; the width of sheet pile body is greater than the width on the edge of a wing of H shaped steel pile body, just sheet pile body fixed connection is in the outside on the edge of a wing of H shaped steel pile body.
Through adopting above-mentioned technical scheme, H shaped steel pile body adopts H shaped steel, and H shaped steel is standard steel structural component, can directly obtain through the purchase. Corresponding sheet pile bodies can be obtained through purchase, structures in the market are fixed to form the combined pile as a whole, the cost for manufacturing the special-shaped pile bodies through mold opening again can be reduced, and therefore construction cost is reduced. The combination pile is directly driven into the soil body through the pile driver, and compared with the pile body of the H-shaped steel or the sheet pile which directly uses the special shape, the combination pile has higher rigidity and can reduce the deflection probability in the pile driving process. Compared with the HU construction method, the H-shaped steel and the Larsen steel sheet pile are driven into the soil body twice, so that a gap exists between the H-shaped steel and the Larsen steel sheet pile, the overall strength is low, and the construction progress is slow. The combined pile provided by the application can perfectly solve the problem.
The present invention may be further configured in a preferred embodiment as: the sheet pile body and the flange of the H-shaped steel pile body are fixedly welded, and the flange of the H-shaped steel pile body is located in the middle of the sheet pile body.
By adopting the technical scheme, the operation is convenient and fast, the construction method can be manufactured and used on the construction site, and the construction cost is reduced.
The present invention may be further configured in a preferred embodiment as: the plate pile body and the flange of the H-shaped steel pile body are fixed through bolts, and the flange of the H-shaped steel pile body is located in the middle of the plate pile body.
Through adopting above-mentioned technical scheme, the bolt has very high joint strength, can improve joint strength between sheet pile body and the H shaped steel pile body to can assemble at the scene, the transportation still can be transported and deposited alone sheet pile body and H shaped steel pile body, reduced the transportation degree of difficulty. Meanwhile, sheet pile bodies with different widths can be matched on site, replacement after structure calculation is facilitated, and applicability is high.
The present invention may be further configured in a preferred embodiment as: the bolt comprises a screw rod with two open ends and arranged in a hollow mode, a head which is sleeved on the end portion of the screw rod and is in threaded fit with the screw rod, and a nut which is sleeved on the outer portion of the screw rod and is in threaded fit with the screw rod, the screw rod penetrates through the sheet pile body and the H-shaped steel pile body to be arranged, and the end face of the head and the end face of the nut are respectively abutted to the side wall of the sheet pile body and the side wall of the flange of the H-shaped steel.
Through adopting above-mentioned technical scheme, when the infiltration appears in the bolt position, can insert the slip casting pipe and inject high-pressure mortar inside the screw rod through unscrewing the head end to make the soil that the H shaped steel pile body closes on harden, and then realize the stagnant water, strengthen the integral rigidity and the intensity of composite pile in step.
The present invention may be further configured in a preferred embodiment as: the bottom of sheet pile body is located the below of H shaped steel pile body, be fixed with the load board on the lateral wall that is located H shaped steel pile body below on the lateral wall of sheet pile body, just the bottom of H shaped steel pile body is contradicted with the terminal surface of load board.
Through adopting above-mentioned technical scheme, because the pile in-process, the web of pile driver centre gripping H shaped steel is under construction, when through bolt fastening sheet pile body and H shaped steel pile body, the relative displacement trend between H shaped steel pile body and the sheet pile body can lead to the bolt to be broken, and sets up on the bearing plate can directly conduct this part effort to the shear force that the reduction bolt bore reduces the probability that the bolt is pulled apart.
The present invention may be further configured in a preferred embodiment as: the flange of the H-shaped steel pile body connected with the sheet pile body is provided with a mounting opening, and a bearing plate is inserted in the mounting opening; one end of the bearing plate is positioned in the mounting opening, the other end of the bearing plate is positioned on the side wall of the sheet pile body, and the bearing plate is simultaneously fixed on the H-shaped steel pile body and the sheet pile body.
By adopting the technical scheme, in the operation process of the foundation pit support structure, the sheet pile body mainly plays a role in water stop, and the H-shaped steel pile body mainly plays a role in bearing acting forces such as lateral pressure of soil and water, so that the length of the sheet pile body does not need to be very long. Set up installing port installation load bearing plate on the lateral wall of H shaped steel to with effort transfer for load bearing plate between H shaped steel pile body and the sheet pile body, can enough reduce the probability that the bolt is broken by the stretch-break, also can reduce the steel use amount of sheet pile body, reduce the holistic steel content of composite pile.
The present invention may be further configured in a preferred embodiment as: the sheet pile body is provided with a through fixing hole, and the fixing hole is arranged through the flange of the H-shaped steel pile body attached to the sheet pile body.
Through adopting above-mentioned technical scheme, inside enclosing purlin, stand or other structures of foundation ditch envelope can use the fixed orifices and directly utilize bolt and combination stake to fix to on-the-spot punching has been avoided.
A second object of the utility model is to provide a foundation ditch envelope.
The above utility model discloses an above-mentioned utility model purpose secondly can realize through following technical scheme:
a foundation pit support structure comprises combined piles and steel sheet piles which are alternately arranged in sequence.
By adopting the technical scheme, the combined pile has extremely strong rigidity and can enhance the resistance of the soil side pressure of the foundation pit support structure. The steel sheet piles have certain flexibility, and can deform to a certain extent according to the design shape of the foundation pit and the deviation between the two combined piles, so that the foundation pit support structure and the foundation pit are more adaptive. In the actual work progress, H shaped steel pile body can be located sheet pile body and deviate from foundation ditch one side, also can be located sheet pile body and be close to foundation ditch one side.
The present invention may be further configured in a preferred embodiment as: the steel sheet pile is arc setting, and the protruding position of steel sheet pile deviates from the foundation ditch.
Through adopting above-mentioned technical scheme, the steel sheet pile that is the arc setting has stronger rigidity, combines keeping away from of influence line, can reduce the steel sheet pile and squeeze into the probability that leads to warping in-process to the soil body. In the in-service use process, when the bellied one side of steel sheet pile bears the pressure measurement of soil, certain deformation takes place for the steel sheet pile under moment of flexure effect, can make the connection between steel sheet pile and the sheet pile body inseparabler.
The present invention may be further configured in a preferred embodiment as: the steel sheet pile is zigzag-shaped and is formed by combining a middle section and edge sections positioned at two ends of the middle end, and the suspended end of each edge section is connected with the corresponding combined pile.
Through adopting above-mentioned technical scheme, be the dogleg shape with the steel sheet pile setting and can improve its global rigidity to reduce the crooked probability of steel sheet pile in the pile driving process. In the actual construction process, Z-shaped steel sheet piles sold in the market can be used as the steel sheet piles.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the H-shaped steel pile body and the sheet pile body are fixedly combined to form the combined pile, so that the integral rigidity of the foundation pit support structure in the construction process can be improved, the manufacturing of the combined pile can be realized by using the existing material, and the production cost is reduced;
2. the combined pile is combined with the steel sheet pile structure arranged in an arc shape, so that the integral rigidity and structural strength of the foundation pit support structure are improved by utilizing the lateral pressure given by soil.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of embodiment 2;
FIG. 3 is a schematic structural view of embodiment 3;
FIG. 4 is a schematic structural view of embodiment 4;
FIG. 5 is a partial structural view of examples 5 to 6;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a partial vertical sectional view schematically showing embodiment 7-10;
FIG. 8 is a partial schematic vertical sectional view of examples 11 to 14;
FIG. 9 is a partial schematic front view of the structure of the embodiment 15 to 28;
FIG. 10 is a schematic structural view of example 29;
FIG. 11 is a schematic structural view of example 30;
FIG. 12 is a schematic structural view of example 31.
In the figure, 1, H-shaped steel pile bodies; 11. an installation port; 2. sheet pile body; 3. a bolt; 31. a screw; 311. a gasket; 32. a head portion; 33. a nut; 4. steel sheet piles; 5. a fixing hole; 6. a bearing plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, for the utility model discloses a combined pile, including H shaped steel pile body 1 and sheet pile body 2. The sheet pile body 2 is a Larsen steel sheet pile with a notch width larger than the flange of the H-shaped steel pile body 1.
During manufacturing, the center line of the sheet pile body 2 is aligned with the center line of the flange of the H-shaped steel pile body 1, and the concave side of the sheet pile body 2 is welded on the flange.
Example 2
Referring to fig. 2, for the utility model discloses a combined pile, including highly uniform H shaped steel pile body 1 and sheet pile body 2. The sheet pile body 2 is a straight sheet steel plate with the width larger than the flange of the H-shaped steel pile body 1, and lock catches are welded at two ends of the straight sheet steel plate. During manufacturing, the center line of the sheet pile body 2 is aligned with the center line of the flange of the H-shaped steel pile body 1, and the sheet pile body 2 is welded on the flange. Due to the existence of the H-shaped steel pile body 1, enough rigidity can be completely provided, so that the straight steel plate is not easy to deform, and the steel content of the combined pile is reduced.
Example 3
Referring to fig. 3, for the utility model discloses a combined pile, with embodiment 1's only difference lie in that fix through bolt 3 between the edge of a wing of sheet pile body 2 and H shaped steel pile body 1.
Example 4
Referring to fig. 4, in order to the present invention, the only difference between the composite pile and the embodiment 2 is that the sheet pile body 2 and the flange of the H-shaped steel pile body 1 are fixed by the bolt 3.
Examples 5 to 6
With reference to fig. 5 and 6, in order to disclose a composite pile, the only difference from embodiments 3-4 is that there is a difference in the structure of the bolt 3.
The bolt 3 includes a screw 31, a head 32, and a nut 33. The screw 31 is externally provided with external threads and internally provided with a pore canal which is through along the axial direction. The head 32 is provided in a cap shape and internally provided with an internal thread. The head 32 can be fitted over one end of the screw 31 and screwed to the end of the screw 31, thereby closing one end of the screw 31. The nut 33 is fitted to the outside of the screw 31 and is moved in the axial direction of the screw 31 by rotating the nut 33.
During installation, the screw 31 penetrates through the flange of the sheet pile body 2 and the flange of the H-shaped steel pile body 1, the head 32 is firstly taken to be sleeved at one end of the screw 31, which is positioned at the sheet pile body 2, and the head 32 is rotated to be fixed with the screw 31. Then, the nut 33 is sleeved at one end of the screw 31, which is located at the H-shaped steel pile body 1, and the nut 33 is rotated until the end surface of the head 32 and the end surface of the nut 33 are respectively abutted against the flanges of the sheet pile body 2 and the H-shaped steel pile body 1.
In actual use, a gasket 311 may be sleeved outside the screw rod 31, and the gasket 311 is located between the head 32 and the sheet pile body 2, so as to improve the sealing property between the head 32 and the sheet pile body 2.
Examples 7 to 10
Referring to fig. 7, in order to the present invention, the difference between the present invention and the embodiments 3-6 is that the top of the sheet pile body 2 is aligned with the top of the H-shaped steel pile body 1, and the bottom of the sheet pile body 2 is located below the bottom of the H-shaped steel pile body 1. The interval between the bottom end face of the sheet pile body 2 and the bottom end face of the H-shaped steel is 10cm, and the bearing plate 6 is welded on the side wall of the sheet pile body 2, namely the height of the bearing plate 6 is 10 cm. The width of the bearing plate 6 is not less than the width of the flange of the H-shaped steel pile body 1, and the bottom end face of the H-shaped steel pile body 1 is abutted against the end face of the bearing plate 6, so that the bearing plate 6 can bear the shearing force applied to the bolt 3 in the piling process.
Examples 11 to 14
Referring to fig. 8, in order to the present invention, the difference between the present invention and the embodiments 3-6 is that the top of the sheet pile body 2 is aligned with the top of the H-shaped steel pile body 1, and the bottom of the sheet pile body 2 is located above the bottom of the H-shaped steel pile body 1. The interval between the bottom end face of the sheet pile body 2 and the bottom end face of the H-shaped steel is 50cm, so that the steel content of the combined pile is reduced.
Two mounting openings 11 are formed in the position, 1m upwards, of the bottom of the H-shaped steel pile body 1, and the two mounting openings 11 are located on the two sides of the flange, attached to the sheet pile body 2, of the H-shaped steel pile body 1. The bearing plate 6 with the thickness the same as that of the flange of the H-shaped steel pile body 1 is inserted into the mounting opening 11, the bearing plate 6 extends to the outside of the mounting opening 11 along the direction perpendicular to the web plate of the H-shaped steel pile body 1, and the bearing plate 6 is welded and fixed with the H-shaped steel pile body 1 and the sheet pile body 2 respectively.
Examples 15 to 28
Referring to fig. 9, in order to the utility model discloses a foundation pit support structure, with the difference of embodiment 1-14, set up the fixed orifices 5 that link up on sheet pile body 2, fixed orifices 5 link up with the edge of a wing setting of the H shaped steel pile body 1 of sheet pile body 2 laminating.
Example 29
Referring to fig. 10, for the utility model discloses a foundation pit support structure, include as in embodiment 2, 4, 6, 9, 10, 13, 14 any one the public composite pile and with composite pile in proper order alternate arrangement's steel sheet pile 4, steel sheet pile 4 chooses for use the larsen steel sheet pile, and connect through the hasp between composite pile and the larsen steel sheet pile. The lock catch adopts a full-surrounding form, and only one inserting port is reserved, so that the connection between the combined pile and the steel sheet pile 4 can be locked in all directions in the horizontal direction. Part of the combined piles are replaced by corresponding combined piles with fixing holes in the embodiments 16, 19, 20, 23, 24, 27 and 28, so that the combined piles can be conveniently fixed with surrounding purlins, inclined struts, upright posts and other members in the foundation pit.
H shaped steel pile body 1 can be located sheet pile body 2 and deviate from foundation ditch one side in actual work progress, also can be for sheet pile body 2 towards foundation ditch one side. When the H-shaped steel pile body 1 is positioned on one side, away from the foundation pit, of the sheet pile body 2, the earthwork excavation amount in the construction process and the later earthwork backfill amount are reduced.
Example 30
Referring to fig. 11, for the utility model discloses a foundation pit support structure, with embodiment 29's only difference lie in, arc plate body structure is chooseed for use to steel sheet pile 4, and the bellied position of steel sheet pile 4 deviates from the foundation pit to can resist the lateral pressure of soil better.
Example 31
Referring to fig. 12, for the utility model discloses a foundation pit support structure, with the only difference of embodiment 29 lies in, steel sheet pile 4 chooses for use zigzag plate structure. The steel sheet pile 4 is formed by combining a middle section and edge sections positioned at two ends of the middle end, and a lock catch is fixed at the suspended end of each edge section, so that the steel sheet pile is conveniently connected with a corresponding combined pile. The fold-line-shaped steel sheet piles 4 have higher rigidity, and longer steel sheet piles 4 can be arranged within the range of the same rigidity bearing capacity, so that unit bodies inside the foundation pit enclosure structure are reduced, and the construction progress is accelerated.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A composite pile is characterized in that: comprises an H-shaped steel pile body (1) and a sheet pile body (2); the width of sheet pile body (2) is greater than the width on the edge of a wing of H shaped steel pile body (1), just sheet pile body (2) fixed connection is in the outside on the edge of a wing of H shaped steel pile body (1).
2. A composite pile according to claim 1, characterised in that: the sheet pile body (2) and the flange of the H-shaped steel pile body (1) are fixedly welded, and the flange of the H-shaped steel pile body (1) is located in the middle of the sheet pile body (2).
3. A composite pile according to claim 1, characterised in that: the plate pile is characterized in that the flange of the plate pile body (2) and the flange of the H-shaped steel pile body (1) are fixed through bolts (3), and the flange of the H-shaped steel pile body (1) is located in the middle of the plate pile body (2).
4. A composite pile according to claim 3, characterised in that: bolt (3) include both ends opening and cavity screw rod (31) that set up, cup joint in screw rod (31) tip and rather than screw-thread fit's head (32) and cup joint in screw rod (31) outside and rather than screw-thread fit's nut (33), screw rod (31) pass sheet pile body (2) and H shaped steel pile body (1) setting, and the terminal surface of head (32) and nut (33) support tightly respectively on the lateral wall on the flange of sheet pile body (2) lateral wall and H shaped steel pile body (1).
5. A composite pile according to claim 3, characterised in that: the bottom of sheet pile body (2) is located the below of H shaped steel pile body (1), be fixed with bearing plate (6) on the lateral wall that is located H shaped steel pile body (1) below on the lateral wall of sheet pile body (2), just the bottom of H shaped steel pile body (1) is contradicted with the terminal surface of bearing plate (6).
6. A composite pile according to claim 3, characterised in that: a mounting opening (11) is formed in a flange of the H-shaped steel pile body (1) connected with the sheet pile body (2), and a bearing plate (6) is inserted into the mounting opening (11); one end of the bearing plate (6) is positioned in the mounting opening (11), the other end of the bearing plate is positioned on the side wall of the sheet pile body (2), and the bearing plate (6) is simultaneously fixed on the H-shaped steel pile body (1) and the sheet pile body (2).
7. A composite pile according to claim 1, characterised in that: the sheet pile is characterized in that a through fixing hole (5) is formed in the sheet pile body (2), and the fixing hole (5) penetrates through the flange of the H-shaped steel pile body (1) attached to the sheet pile body (2).
8. A foundation pit enclosure using the composite pile of claim 1, wherein: including combined pile and steel sheet pile (4) that set up in turn, H shaped steel pile body (1) is located sheet pile body (2) and deviates from foundation ditch one side.
9. A foundation pit enclosure according to claim 8 wherein: the steel sheet pile (4) is arranged in an arc shape, and the protruding position of the steel sheet pile (4) deviates from the foundation pit.
10. A foundation pit enclosure according to claim 8 wherein: the steel sheet piles (4) are arranged in a zigzag shape, the steel sheet piles (4) are formed by combining a middle section and edge sections positioned at two ends of the middle end, and the suspended ends of the edge sections are connected with the corresponding combined piles respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573755.1U CN212405104U (en) | 2020-04-16 | 2020-04-16 | Combined pile and foundation pit support structure using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573755.1U CN212405104U (en) | 2020-04-16 | 2020-04-16 | Combined pile and foundation pit support structure using same |
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| CN212405104U true CN212405104U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774965A (en) * | 2021-08-17 | 2021-12-10 | 绍兴文理学院 | Manufacturing and testing method of test piece for testing bending resistance of combined steel sheet pile |
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2020
- 2020-04-16 CN CN202020573755.1U patent/CN212405104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774965A (en) * | 2021-08-17 | 2021-12-10 | 绍兴文理学院 | Manufacturing and testing method of test piece for testing bending resistance of combined steel sheet pile |
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