CN218812974U - High-pressure cement shotcrete bridge head foundation structure - Google Patents
High-pressure cement shotcrete bridge head foundation structure Download PDFInfo
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- CN218812974U CN218812974U CN202222725832.2U CN202222725832U CN218812974U CN 218812974 U CN218812974 U CN 218812974U CN 202222725832 U CN202222725832 U CN 202222725832U CN 218812974 U CN218812974 U CN 218812974U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The utility model discloses a high pressure slurry shotcrete pier foundation structure, including stratum, soil layer and platform backing layer, the upper end fixedly connected with pier of trapezoidal platform, the right side fixedly connected with bridge body of pier, the inside of stratum is provided with the high pressure slurry shotcrete, and the inside on soil layer is provided with the anchor block, and the platform backing layer includes waterproof layer, rubber layer and foam concrete back up coat, and foam concrete back up coat pours and lays the upper surface on rubber layer, and foam concrete back up coat's upper surface is provided with the road surface attachment strap. Can consolidate the rock stratum through setting up high-pressure cement shotcrete, can consolidate the soil layer through setting up the anchor button, through setting up the road surface attachment strap, when first pile foundation or second pile foundation take place to subside, utilize the rotation connection relation of connector and bridgehead platform, can subside the gradual change formula that changes road surface attachment strap length into with the single point and subside, thereby can effectively avoid appearing disconnected cliff formula and subside, make and subside gradual change, thereby can effectively avoid appearing bridgehead jump phenomenon.
Description
Technical Field
The utility model relates to a bridgehead foundation technical field specifically is a high-pressure cement shotcrete bridgehead foundation structure.
Background
The high-speed road has high driving speed and large traffic flow, and has higher requirements on the road base compared with the common road. Not only the roadbed is required to be stable, but also the post-construction settlement is required to be higher, and especially the asymmetric settlement after construction is required to be mastered. However, the highway often needs to pass through a soft soil section, and the phenomenon of bumping at the bridge head is caused by asymmetrical settlement after construction. The high-pressure jet grouting pile has the characteristics of high strength of the reinforcing body, uniform reinforcing quality and controllable appearance of the reinforcing body, so that the high-pressure jet grouting pile can be used for injecting slurry to reinforce the bridge head foundation.
High-pressure cement shotcrete pier bridgehead foundation structure generally includes stratum, soil layer and abutment layer, but just consolidates with high-pressure jet grouting pile to the stratum among the prior art, and abutment and soil layer still have the risk of subsiding, still can appear bridgehead jump car phenomenon.
Therefore, a high-pressure grouting pile bridgehead foundation structure is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high pressure cement shotcrete pier bridgehead foundation structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high pressure slurry shotcrete bridgehead foundation structure, including stratum, soil layer and step back layer, the inside of stratum and soil layer is inserted and is equipped with first pile foundation, the inside of stratum, soil layer and step back layer is inserted and is equipped with the second pile foundation, the trapezoidal platform of upper end fixedly connected with of first pile foundation, the upper end fixedly connected with bridgehead platform of trapezoidal platform, the right side fixedly connected with bridge body of bridgehead platform, the inside of stratum is provided with the high pressure slurry shotcrete, the inside of soil layer is provided with the anchor block, the step back layer includes the waterproof layer, rubber layer and foam concrete back up coat, the upper surface at the waterproof layer is laid on the rubber layer, the upper surface of laying on the rubber layer is pour to the foam concrete back up coat, the upper surface of foam concrete back up coat is provided with the road surface attachment strap.
Preferably, the trapezoidal groove has been seted up in the left side of bridge head platform, and the upper end of second pile foundation is seted up flutedly, and the right-hand member fixedly connected with connector of road surface attachment strap, the lower fixed surface of road surface attachment strap is connected with the lug, and the connector rotates through the pivot to be connected at the trapezoidal inslot wall, and the lug joint is at recess inner wall to road surface attachment strap and second pile foundation pass through the bolt fixed connection of threaded connection at road surface attachment strap upper surface.
Preferably, the pavement slab is integrally formed by pouring steel bars and mixed soil.
Preferably, the upper surfaces of the bridge body, the bridge head platform and the pavement attachment strap are flush.
Preferably, the number of the high-pressure cement spraying piles is several, the high-pressure cement spraying piles are distributed in a rectangular array, and the distance between two adjacent high-pressure cement spraying piles is 600mm.
Preferably, the reinforcing blocks can be limestone, marble, granite or basalt fragments, and the rubber layers can be waste tire rubber.
Advantageous effects
The utility model provides a high-pressure cement shotcrete pier bridgehead foundation structure possesses following beneficial effect:
1. this high-pressure slurry shotcrete bridgehead foundation structure can consolidate the stratum through setting up high-pressure slurry shotcrete, can consolidate the soil layer through setting up the reinforcement piece, through setting up the road surface attachment strap, when first pile foundation or second pile foundation take place to subside, utilize the rotation connection relation of connector and bridgehead platform, can subside the gradual change formula that changes into road surface attachment strap length with the single point and subside, thereby can effectively avoid appearing disconnected cliff formula and subside, make and subside gradual change, thereby can effectively avoid appearing bridgehead jump car phenomenon.
2. This high pressure cement shotcrete bridgehead foundation structure through setting up the waterproof layer, can effectively avoid avoiding the rainwater to permeate soil layer and rock stratum, makes the ground become soft, through setting up the rubber layer, utilizes abandonment tire rubber to act as rubber, can effectively resources are saved, plays energy-concerving and environment-protective efficiency, and the rubber layer can also play the buffering guard action simultaneously.
Drawings
FIG. 1 is a schematic view of the front cut structure of the present invention;
FIG. 2 is a schematic view of the top view structure of the pavement slab of the present invention;
fig. 3 is the schematic view of the distribution structure of high-pressure grouting pile.
In the figure: the concrete bridge comprises 1 rock stratum, 2 soil layers, 3 backing layers, 4 first pile foundations, 5 second pile foundations, 6 trapezoidal platforms, 7 bridge head platforms, 8 bridge bodies, 9 high-pressure cement spraying piles, 10 reinforcing blocks, 11 waterproof layers, 12 rubber layers, 13 foam concrete reinforcing layers, 14 pavement butt straps, 15 trapezoidal grooves, 16 connectors, 17 bumps, 18 rotating shafts and 19 bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high pressure slurry shotcrete bridgehead foundation structure, including stratum 1, soil layer 2 and abutment layer 3, stratum 1 and 2's inside is inserted and is equipped with first pile foundation 4, stratum 1, soil layer 2 and abutment layer 3's inside is inserted and is equipped with second pile foundation 5, the trapezoidal platform of upper end fixedly connected with 6 of first pile foundation 4, the upper end fixedly connected with bridgehead platform 7 of trapezoidal platform 6, the right side fixedly connected with bridge body 8 of bridgehead platform 7, stratum 1's inside is provided with high pressure slurry shotcrete 9, soil layer 2's inside is provided with reinforcing block 10, reinforcing block 10 can be the lime stone, the marble, granite or basalt fragment, rubber layer 12 can be waste tire rubber, reinforcing block 10 can consolidate soil layer 2 through setting up.
The counter top layer 3 comprises a waterproof layer 11, a rubber layer 12 and a foam concrete reinforcing layer 13, the rubber layer 12 is laid on the upper surface of the waterproof layer 11, the foam concrete reinforcing layer 13 is laid on the upper surface of the rubber layer 12 in a pouring mode, a pavement attachment plate 14 is arranged on the upper surface of the foam concrete reinforcing layer 13, and the pavement attachment plate 14 is integrally formed by steel bars and mixed collar soil in a pouring mode.
Through setting up waterproof layer 11, can effectively avoid the rainwater to permeate soil layer 2 and rock stratum 1, make the ground become soft, through setting up rubber layer 12, utilize abandonment tire rubber to act as rubber, effective resources are saved can play energy-concerving and environment-protective efficiency, and rubber layer 12 can also open the buffer protection effect simultaneously.
Can consolidate rock stratum 1 through setting up high pressure thick liquid shotcrete 9, can consolidate soil layer 2 through setting up reinforcing block 10, through setting up road surface attachment strap 14, when first pile foundation 4 or second pile foundation 5 take place to subside, utilize the rotation connection relation of connector 16 and bridgehead platform 7, can subside the gradual change formula of changing into road surface attachment strap 14 length with the single point and subside, thereby can effectively avoid appearing disconnected cliff formula and subside, make and subside gradual change, be similar to the gentle slope effect, thereby can effectively avoid appearing bridgehead jump car phenomenon.
The quantity of high-pressure slurry shotcrete 9 is a plurality of, is the rectangle array and distributes to the interval between two adjacent high-pressure slurry shotcrete 9 is 600mm, can consolidate rock stratum 1 through setting up high-pressure slurry shotcrete 9.
The working principle is as follows: when the high-pressure cement shotcrete bridge head foundation structure is constructed, firstly, high-pressure rotary shotcrete piles are adopted to reinforce a rock stratum 1, the distance between two adjacent high-pressure cement shotcrete piles 9 is 600mm, then reinforcing blocks 10 are filled into a soil layer 2, a waterproof layer 11 is laid on the upper surface of the soil layer 2, a rubber layer 12 is laid on the upper surface of the waterproof layer 11, a foam concrete reinforcing layer 13 is poured and laid on the upper surface of the rubber layer 12, one end of a pavement butt plate 14 is rotatably connected to the side surface of a bridge head platform 7, a convex block 17 is clamped in a groove, finally, a bolt 19 is in threaded connection with the upper surface of the pavement butt plate 14, when a first pile foundation 4 or a second pile foundation 5 is settled, the connection relation of rotation of a connector 16 and the bridge head platform 7 is utilized, single-point settlement can be converted into gradual-change settlement of the length of the pavement butt plate 14, so that the broken cliff type settlement can be effectively avoided, the gradual change of the settlement can be avoided, and the occurrence of bridge head skip phenomenon can be effectively avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high pressure cement shotcrete pier foundation structure, includes rock stratum (1), soil layer (2) and abutment layer (3), its characterized in that: the concrete bridge is characterized in that a first pile foundation (4) is inserted into the rock stratum (1) and the soil layer (2), a second pile foundation (5) is inserted into the rock stratum (1), the soil layer (2) and the platform back layer (3), a trapezoid table (6) is fixedly connected to the upper end of the first pile foundation (4), a bridge head table (7) is fixedly connected to the upper end of the trapezoid table (6), a bridge body (8) is fixedly connected to the right side of the bridge head table (7), a high-pressure cement jet pile (9) is arranged inside the rock stratum (1), reinforcing blocks (10) are arranged inside the soil layer (2), the platform back layer (3) comprises a waterproof layer (11), a rubber layer (12) and a foam concrete reinforcing layer (13), the rubber layer (12) is laid on the upper surface of the waterproof layer (11), the foam concrete reinforcing layer (13) is laid on the upper surface of the rubber layer (12), and a pavement butt strap (14) is arranged on the upper surface of the foam concrete reinforcing layer (13).
2. A high-pressure shotcrete bridge head foundation structure according to claim 1, wherein: trapezoidal groove (15) have been seted up in the left side of bridge head platform (7), the upper end of second pile foundation (5) is seted up flutedly, the right-hand member fixedly connected with connector (16) of road surface attachment strap (14), lower fixed surface of road surface attachment strap (14) is connected with lug (17), connector (16) are rotated through pivot (18) and are connected at trapezoidal groove (15) inner wall, lug (17) joint is at the recess inner wall, and bolt (19) fixed connection at road surface attachment strap (14) upper surface is passed through threaded connection in road surface attachment strap (14) with second pile foundation (5).
3. A high-pressure shotcrete bridge head foundation structure according to claim 1, wherein: the pavement butt strap (14) is formed by pouring reinforcing steel bars and mixed soil.
4. The high-pressure grouting pile-spraying bridge head foundation structure as claimed in claim 1, wherein: the upper surfaces of the bridge body (8), the bridge abutment (7) and the pavement butt strap (14) are flush.
5. The high-pressure grouting pile-spraying bridge head foundation structure as claimed in claim 1, wherein: the quantity of high-pressure slurry spraying piles (9) is a plurality of, and the high-pressure slurry spraying piles are distributed in a rectangular array, and the distance between two adjacent high-pressure slurry spraying piles (9) is 600mm.
6. A high-pressure shotcrete bridge head foundation structure according to claim 1, wherein: the reinforcing blocks (10) can be limestone, marble, granite or basalt fragments, and the rubber layer (12) can be waste tire rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222725832.2U CN218812974U (en) | 2022-10-17 | 2022-10-17 | High-pressure cement shotcrete bridge head foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222725832.2U CN218812974U (en) | 2022-10-17 | 2022-10-17 | High-pressure cement shotcrete bridge head foundation structure |
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| Publication Number | Publication Date |
|---|---|
| CN218812974U true CN218812974U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222725832.2U Active CN218812974U (en) | 2022-10-17 | 2022-10-17 | High-pressure cement shotcrete bridge head foundation structure |
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| CN (1) | CN218812974U (en) |
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2022
- 2022-10-17 CN CN202222725832.2U patent/CN218812974U/en active Active
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