Double-row pile U-shaped wall reinforcing structure
By drilling a new row of cast-in piles on the back of the single cast-injected piles of the current drainage channel and pulling them together, combining the canal base beam as the bottom support, forming a 'U'-shaped structure, the current drainage channel bank protection structure is solved. The problems of insufficient stability and space saving have achieved improvements in structural safety and economic benefits after reinforcement.
Patent Information
- Application Number
- CN202323661979.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
Smart Images
Figure CN222206190U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of municipal water conservancy engineering, and specifically relates to a double-row pile "U"-shaped wall reinforcement structure. Background Art
[0002] Some existing flood drainage channels in the city use single-row cantilever cast-in-place piles as bank protection structures. With the development of urban construction and the improvement of flood control and drainage standards, some existing flood drainage channels can no longer meet the requirements of their use functions. When there are residential houses or other buildings (structures) close to both sides of the existing flood drainage channel, widening the channel requires large-scale demolition, which will increase financial pressure. In this case, the existing flood drainage channel can be deepened and renovated.
[0003] When deepening and renovating the existing flood drainage channel, the original single-row cantilever cast-in-place pile revetment structure can no longer meet the stability requirements of anti-slip and anti-overturning, and needs to be reinforced. If conventional pile-anchor structure is used for reinforcement, the anchor rod will invade the foundation of the residential building, not only exceeding the red line but also increasing the safety hazards of adjacent buildings (structures). Therefore, it is necessary to use a method that can save space and play an effective reinforcement role to reinforce the existing revetment, so that the safety and stability of the reinforced structure can meet the requirements of current specifications and standards. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a double-row pile "U"-shaped wall reinforcement structure, in which a second row of cast-in-place piles can be newly driven on the rear side of the first cast-in-place piles (the existing single-row cast-in-place piles), and connected to the first cast-in-place piles through a crown beam to form a new double-row pile bank protection system, and then a lattice beam bottom support is set at the bottom of the channel to form a "U"-shaped structural combination with the bank protection structures on both sides.
[0005] To achieve the above object, the utility model adopts the following technical scheme: a double-row pile "U"-shaped wall reinforcement structure, comprising at least two rows of first cast-in-place piles and at least two rows of second cast-in-place piles, the two rows of the first cast-in-place piles are respectively located on both sides of the flood drainage channel, the two rows of the first cast-in-place piles are arranged along the extension direction of the flood drainage channel, the two rows of the second cast-in-place piles are respectively located on both sides of the flood drainage channel, the two rows of the second cast-in-place piles are arranged along the extension direction of the flood drainage channel, and the second cast-in-place piles are located on the same side of the first cast-in-place piles facing away from the flood drainage channel;
[0006] It also includes at least two crown beams, the two crown beams are respectively located on both sides of the flood discharge channel, and the tops of the first cast-in-place pile and the second cast-in-place pile on the same side are anchored in the crown beam on the same side;
[0007] It also includes a plurality of horizontally arranged lattice beams, wherein the lattice beams are perpendicular to the extension direction of the flood drainage channel, and the two ends of the lattice beams are respectively fixed to the two rows of the first cast-in-place piles.
[0008] Preferably, a plurality of the lattice beams are arranged at intervals along the extension direction of the flood drainage channel, and a distance between two adjacent lattice beams is one to two times the depth of the flood drainage channel.
[0009] Preferably, two adjacent first cast-in-place piles on the same side are closely connected.
[0010] Preferably, the distance between two adjacent second cast-in-place piles on the same side is one to three times the distance between two adjacent first cast-in-place piles.
[0011] Preferably, the net spacing between a row of the first cast-in-place piles and a row of the second cast-in-place piles on the same side is twenty centimeters.
[0012] Preferably, the lattice beam is a reinforced concrete structure.
[0013] Preferably, steel bars are implanted in the first cast-in-place piles, and the lattice beams are fixed to the steel bars.
[0014] Preferably, a guardrail is fixed to the top of the crown beam.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The double-row pile "U"-shaped wall reinforcement structure provided by the utility model has the following advantages: (1) the first cast-in-place pile (the existing cast-in-place pile) is fully utilized to effectively reduce waste; (2) the second cast-in-place pile is added to the rear side to effectively save construction space, and the pile foundation construction has little impact on the adjacent residential buildings; (3) the newly built second cast-in-place pile and the first cast-in-place pile are connected to form a whole by a crown beam, thereby improving the overall rigidity and stability of the bank protection; (4) the lattice beam is added to the bottom of the channel as a bottom support, which can effectively reduce the horizontal displacement of the row pile bank protection, reduce the construction impact range, and increase the stability of the bank protection, thereby ensuring that the structure meets the requirements of current specifications and standards. The reinforcement structure can not only meet the requirements of structural stability, but also meet the requirements of land red line and reducing the construction impact range, so as to achieve the purpose of reducing the waste of engineering quantity, shortening the construction period, protecting the safety of existing residential buildings, and saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic cross-sectional structure diagram of a double-row pile "U"-shaped wall reinforcement structure provided by an embodiment of the utility model;
[0018] Figure 2 A schematic top view of a double-row pile "U"-shaped wall reinforcement structure provided in an embodiment of the utility model.
[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0020] 1. The first cast-in-place pile; 2. The second cast-in-place pile; 3. The crown beam; 4. The lattice beam; 5. The guardrail; 6. The flood drainage channel. DETAILED DESCRIPTION
[0021] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.
[0022] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this application can be understood according to specific circumstances.
[0023] like Figure 1 As shown, there is a row of existing cast-in-place piles on both sides of the flood drainage channel 6. The traditional reinforcement method is to set anchor rods behind the piles, but the construction range of the anchor rods is large and even invades the foundation of residential buildings, which not only exceeds the red line but also increases the safety hazard of existing residential buildings.
[0024] In order to avoid the above problems, Figure 1-2 As shown, this embodiment provides a double-row pile "U"-shaped wall reinforcement structure, including two rows of first cast-in-place piles 1 and two rows of second cast-in-place piles 2. The two rows of the first cast-in-place piles 1 are respectively located on both sides of the flood drainage channel 6, and the first cast-in-place piles 1 and the second cast-in-place piles 2 are both vertically arranged. The two rows of the first cast-in-place piles 1 are arranged along the extension direction of the flood drainage channel 6, and the two rows of the second cast-in-place piles 2 are respectively located on both sides of the flood drainage channel 6. The two rows of the second cast-in-place piles 2 are arranged along the extension direction of the flood drainage channel 6, and the second cast-in-place piles 2 are located on the same side of the first cast-in-place piles 1 facing away from the flood drainage channel 6. The first bored piles 1 are existing bored piles, the pile ends of which have entered the bearing layer and can be used as the front row of double-row piles. The second bored piles 2 are newly built bored piles, and the lateral spacing between the second bored piles 2 and the first bored piles 1 is relatively small. For example, the net spacing between a row of the first bored piles 1 and a row of the second bored piles 2 on the same side is 20 centimeters. In this way, when constructing the second bored piles 2, construction space can be effectively saved, and the pile foundation construction has little impact on neighboring houses.
[0025] In order to improve the stability of the first cast-in-place pile 1 and the second cast-in-place pile 2, the reinforcement structure provided in this embodiment also includes two crown beams 3, which are respectively located on both sides of the flood drainage channel 6. The crown beams 3 are horizontally arranged and arranged along the extension direction of the flood drainage channel 6. The tops of the first cast-in-place pile 1 and the second cast-in-place pile 2 on the same side are anchored in the crown beam 3 on the same side. During construction, the existing crown beam at the top of the first cast-in-place pile 1 is chiseled out, and a new crown beam, namely the crown beam 3, which can meet the requirements of the double-row pile assembly, can be reconstructed. The crown beam 3 can fix the first cast-in-place pile 1 and the second cast-in-place pile 2 on the same side, and the top of the crown beam 3 can be flush with the road surface. A guardrail 5 can be fixedly installed on the top of the crown beam 3, and the guardrail 5 can play a certain protective role.
[0026] In order to improve the overall stability of the double-row piles on both sides of the flood discharge channel 6, the reinforcement structure provided in this embodiment also includes a plurality of horizontally arranged lattice beams 4, the lattice beams 4 are located at the bottom of the flood discharge channel 6, the lattice beams 4 are perpendicular to the extension direction of the flood discharge channel 6, and the two ends of the lattice beams 4 are respectively fixed to the two rows of the first cast-in-place piles 1. Specifically, a lattice beam is made at the bottom of the channel, which can be used as a supporting member for the revetments on both sides, and the structures on both sides are combined into an integral "U"-shaped wall structure. That is, the lattice beam 4 can connect the double-row piles on both sides into a whole, and can also play a supporting role, effectively improving the stability of the double-row piles on both sides, such as anti-overturning.
[0027] In summary, the double-row pile "U"-shaped wall reinforcement structure provided in this embodiment newly drives a row of the second cast-in-place piles 2 at the rear side of the first cast-in-place piles 1 (existing cast-in-place piles) revetment, and connects the second cast-in-place piles 2 with the first cast-in-place piles 1 through the crown beam 3 to form a new double-row pile revetment system, and then sets a lattice beam 4 as a bottom support at the bottom of the channel to form a "U"-shaped structural assembly with the revetment structures on both sides. The "U"-shaped structural assembly has the following advantages: (1) Make full use of the existing cast-in-place piles to reduce waste; (2) The method of adding cast-in-place piles at the rear side can effectively save construction space, and the pile foundation construction has little impact on the neighboring houses; (3) The newly built cast-in-place piles and the existing cast-in-place piles are connected to form a whole with the crown beam, which improves the overall stiffness and stability of the revetment; (4) Adding a lattice beam as a bottom support at the bottom of the channel can effectively reduce the horizontal displacement of the row pile revetment, reduce the construction impact range, and increase the stability of the revetment, thereby ensuring that the structure meets the requirements of current specifications and standards.
[0028] like Figure 2As shown, in this embodiment, a plurality of lattice beams 4 are arranged at intervals along the extension direction of the flood discharge channel 6, and the distance between two adjacent lattice beams 4 is one to two times the depth of the flood discharge channel 6. The lattice beams 4 are arranged at the bottom of the channel, which will not affect the water flow. The lattice beams 4 can be reinforced concrete structures with a long service life. In order to improve the stability of the lattice beams 4, during construction, steel bars can be implanted in the first cast-in-place piles 1 in advance, and then the lattice beams 4 can be fixed to the steel bars in the first cast-in-place piles 1 on both sides.
[0029] Two adjacent first cast-in-place piles 1 on the same side are closely connected. There is usually no gap between the existing cast-in-place piles, or the gap is small. In this way, the first cast-in-place piles 1 can be used as the front row of double-row piles.
[0030] When there is a small gap between two adjacent first cast-in-place piles 1 on the same side, the spacing between two adjacent second cast-in-place piles 2 on the same side is one to three times the spacing between two adjacent first cast-in-place piles 1. As the back row of double-row piles, the second cast-in-place piles 2 (newly built cast-in-place piles) can increase the distance between piles and reduce the length of piles according to calculation, thereby achieving the purpose of saving construction costs. For example, the length of the second cast-in-place pile 2 is less than that of the first cast-in-place pile 1, the top of the first cast-in-place pile 1 is flush with the top of the second cast-in-place pile 2, and the bottom of the first cast-in-place pile 1 is lower than the bottom of the second cast-in-place pile 2, which not only reduces the construction cost of the second cast-in-place pile 2, but also ensures its stability.
[0031] Based on the above structure, the double-row pile "U"-shaped wall reinforcement structure provided in this embodiment may include the following steps for its construction method:
[0032] S1. Remove the existing crown beam at the top of the first cast-in-place pile 1;
[0033] S2. Construction of a row of second cast-in-place piles 2 behind the first cast-in-place pile 1;
[0034] S3 production of new crown beam 3, the first cast-in-place pile 1 and the second cast-in-place pile 2 are combined into a double-row pile structure;
[0035] S4. Excavate the channel to the bottom elevation of the lattice beam 4 cushion layer;
[0036] S5. Implant steel bars in the first cast-in-place pile 1 and cast the lattice beam 4 to complete the construction.
[0037] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.
[0038] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0039] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A double-row pile "U"-shaped wall reinforcement structure, characterized in that: The invention comprises at least two rows of first cast-in-place piles (1) and at least two rows of second cast-in-place piles (2), wherein the two rows of the first cast-in-place piles (1) are respectively located on both sides of a flood discharge channel (6), and the two rows of the first cast-in-place piles (1) are arranged along the extension direction of the flood discharge channel (6); the two rows of the second cast-in-place piles (2) are respectively located on both sides of the flood discharge channel (6), and the two rows of the second cast-in-place piles (2) are arranged along the extension direction of the flood discharge channel (6), and the second cast-in-place piles (2) are located on the same side of the first cast-in-place piles (1) facing away from the flood discharge channel (6); It also comprises at least two crown beams (3), the two crown beams (3) are respectively located on both sides of the flood discharge channel (6), and the top ends of the first cast-in-place pile (1) and the second cast-in-place pile (2) on the same side are both anchored in the crown beam (3) on the same side; It also comprises a plurality of horizontally arranged lattice beams (4), wherein the lattice beams (4) are perpendicular to the extension direction of the flood discharge channel (6), and the two ends of the lattice beams (4) are respectively fixed to two rows of the first cast-in-place piles (1).
2. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: A plurality of the lattice beams (4) are arranged at intervals along the extension direction of the flood drainage channel (6), and the interval between two adjacent lattice beams (4) is one to two times the depth of the flood drainage channel (6).
3. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: Two adjacent first cast-in-place piles (1) on the same side are tightly connected.
4. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: The spacing between two adjacent second cast-in-place piles (2) on the same side is one to three times the spacing between two adjacent first cast-in-place piles (1).
5. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: The net spacing between a row of the first cast-in-place piles (1) and a row of the second cast-in-place piles (2) on the same side is 20 centimeters.
6. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: The lattice beam (4) is a reinforced concrete structure.
7. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: Steel bars are implanted in the first cast-in-place pile (1), and the lattice beam (4) is fixed to the steel bars.
8. A double-row pile "U"-shaped wall reinforcement structure according to claim 1, characterized in that: A guardrail (5) is fixed to the top of the crown beam (3).