Permanent and temporary combined arrangement structure of gate pump building

Abstract

The utility model relates to the technical field of hydraulic engineering construction, in particular to a permanent and temporary combined arrangement structure of a gate pump building. According to the permanent and temporary combined arrangement structure of the gate pump building, double-row piles are arranged on the side of a gate pump body structure and serve as foundation pit supports in the gate pump body construction period to block soil on the two sides of a river bank; in the operation period, the double-row piles can be integrally poured through the anchoring structure and the main body structure to serve as a gate pump building foundation; the double-row pile structure meets the design requirements under different working conditions, and therefore permanent and temporary combination is achieved. The permanent and temporary combined arrangement structure is simple, the design theory and the construction technology are mature, and construction is convenient and fast; the construction support pile is used as a structural foundation pile, is economical in manufacturing cost, environment-friendly and green, and has good engineering practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project construction, and particularly relates to a permanent and temporary combined layout structure of a sluice pump building. Background Art

[0002] Coastal water conservancy hubs such as sluice pumps are mostly built in plains and cities. The construction sites of some sluice pump stations are narrow and the surrounding environment is complex. The river channels where the projects are located are often in deep soft soil areas. There are no conditions for large-scale slope excavation operations during the construction of sluice pump buildings, and temporary foundation pit support needs to be adopted. Constrained by construction conditions, the design and construction of small and medium-sized sluice pump buildings need to comprehensively consider the impacts of investment cost, construction safety, construction period optimization, energy conservation and environmental protection, etc., and carry out overall optimization design of the project. Affected by the complexity and particularity of the sluice pump structure layout and the external conditions for the construction of different parts of the project, the sluice pump foundation pits are often characterized by irregular shapes, different depths in different areas, open type, and poor geological conditions. In the prior art KR101311422B1, a connection structure between the front row pile connecting member and the rear row pile connecting member in a two-row self-standing retaining method connects the front row pile connecting member and the rear row pile connecting member while the front row pile or the rear row pile is buried obliquely. The front row and rear row pile connecting members are rod-shaped, and include a connecting member installation unit, a felt strip and a compression plate. The plate for compression compresses the fur strip and connects it to the connecting member installation unit. In the prior art, there are still problems such as double-row piles being used as temporary construction structures, which are discarded and difficult to recycle after the main body of the sluice pump is completed and the earthwork is backfilled, resulting in certain waste; and the connection structure of the double-row piles is unreliable. The inventor believes that there is still a large room for improvement. Summary of the Utility Model

[0003] The design objective of the present utility model is to combine the double-row pile support and the foundation piles of the sluice pump building, which has both the functions of construction support and foundation bearing, forms a permanent-temporary combined integral structure, reduces the number of foundation pit supports, and at the same time reduces the processes such as erection and removal of vertical supports during the main construction. It can play a favorable regulatory role in project cost, construction period and environmental protection; in this solution, the front row of piles composed of alternately arranged foundation pit support piles and foundation piles can form a cut-off curtain after construction, separating the soil between this project and adjacent other structures, and to a certain extent, it can reduce the mutual interference caused by differential deformation of different buildings in the site due to stratum differences. At the same time, the sluice pump main body and its side structure form an integral whole, reducing the differential settlement of the building itself to a certain extent. The present utility model proposes a permanent-temporary combined layout structure for a sluice pump building. The sluice pump building includes a main structure and a side structure. At least two rows of foundation piles are provided below the side structure. The top of each row of foundation piles is provided with a pile top connection structure. Above the pile top connection structure is the side structure. The pile top connection structure realizes the connection of adjacent rows of foundation piles; the row of foundation piles close to the main structure is the front row of piles. The pile top connection structure at the top of the front row of piles is provided with a reserved anchoring structure, and the reserved anchoring structure is connected to the main structure. The use of the pile top connection structure can effectively control the overall stability and deformation of the foundation pit during the construction period, reduce the setting of foundation pit supports, provide a larger construction operation space, and serve as the foundation beam or foundation raft or the bottom plate of the box foundation of the building during the operation period, reducing the processes of pile removal and erection support during the main construction, and can reduce the project cost and shorten the construction period; the use of the reserved anchoring structure is convenient for connecting with the connection part of the main structure to form an integral building, which can save building materials and shorten the project construction period.

[0004] Preferably, the front row of piles includes a support foundation pile and a soil retaining surface layer structural slab. The soil retaining surface layer structural slab is located between the main structure and the support foundation pile. The top of the soil retaining surface layer structural slab is the pile top connection structure. The soil retaining surface layer structural slab is adjacent to the main structure of the sluice pump building, and the size of the structural deformation joint is reserved. During the construction period, it serves as the soil retaining surface layer structural slab of the foundation pit support pile and also serves as the formwork support for the main structure pouring.

[0005] Preferably, the support foundation pile includes a foundation pile and a foundation pit support pile. The buried depth of the foundation pit support pile is less than that of the foundation pile. The top height of the foundation pit support pile is equal to the top height of the foundation pile. The use of the foundation pit support pile can ensure the stability of the foundation pit soil layer, effectively control the overall stability and deformation of the foundation pit, and effectively control the displacement and settlement of surrounding buildings; the setting of the foundation pile has both the function of foundation bearing and realizes the permanent-temporary combined layout structure; during the construction period, it forms a cut-off curtain to separate the soil between this project and adjacent other buildings, and to a certain extent, it can reduce the mutual interference caused by differential deformation of different buildings in the site due to stratum differences.

[0006] Preferably, the foundation pile further includes a rear row of piles. The buried depth of the rear row of piles is equal to that of the foundation pile group, and the top height of the rear row of piles is equal to the top height of the foundation pile group. The rear row of piles and the front row of piles form a hyperstatic space structure, which can effectively control the overall stability and deformation of the foundation pit, reduce the setting of foundation pit supports, and provide a larger construction operation space.

[0007] Preferably, the foundation pile group and the foundation pit support pile group are arranged at intervals. The buried depths of the foundation pile group and the foundation pit support pile group are different. Regular interval arrangement can effectively control the pile top displacement on the basis of effectively controlling the overall stability and deformation of the foundation pit.

[0008] Preferably, the pile top connection structure is integrally cast and connected with the adjacent foundation pile. Since the pile top connection structure is integrally cast and connected with the foundation pile, according to the foundation design of the building during the operation period, it can be used as the foundation beam, foundation raft or the bottom plate of the box foundation of the building.

[0009] Preferably, tenon and mortise shear keys are provided on the contact surface between the pile top connection structure of the front row of piles and the main structure. Since the front row of piles needs to be used as the building foundation during the operation period, in order to effectively control the shear slip between the front row of piles and the main structure, tenon and mortise shear keys are set to improve the load-bearing capacity of the building foundation.

[0010] Preferably, a water stop facility is provided on the contact surface between the pile top connection structure of the front row of piles and the main structure. Since the concrete structures of the front row of piles and the sluice pump building are cast successively in time, a waterproof structure is set on the contact surface between the pile top connection structure of the front row of piles and the main structure, which can play an anti-seepage role and avoid water leakage.

[0011] The utility model solves the problems that due to the complexity and particularity of the sluice pump structure layout and the influence of external conditions for construction in different parts of the project, the sluice pump foundation pit is often irregular in shape, different in partition depth, open, and difficult to set up foundation pit support due to poor geological conditions; and the double-row piles are used as temporary construction structures and are discarded and difficult to recycle after the sluice pump main body is completed and the earthwork is backfilled. The utility model has the following beneficial effects: By adopting the pile top connection structure and regularly arranging the foundation pile group and the foundation pit support pile group at intervals, the overall stability and deformation of the foundation pit can be effectively controlled during the construction period, the setting of foundation pit supports can be reduced, and a larger construction operation space can be provided. During the operation period, it can be used as the foundation beam, foundation raft or the bottom plate of the box foundation of the building, and is connected with the building through the reserved anchoring structure, reducing the processes of removing piles and setting up supports during the main construction, avoiding waste, being able to reduce the project cost and shorten the construction period. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the construction period structure of the permanent-temporary combined layout structure of the utility model;

[0013] Figure 2 This is the structural schematic diagram of the permanent-temporary combined layout structure of the present utility model during the operation period;

[0014] Figure 3 This is the plan structural schematic diagram of the permanent-temporary combined layout structure of the present utility model during the operation period;

[0015] Figure 4 This is the structural schematic diagram of the contact surface between the pile top connection structure and the main structure of the present utility model;

[0016] Figure 5 This is another structural schematic diagram of the permanent-temporary combined layout structure of the present utility model.

[0017] Explanation of reference numerals: 1 front row of piles; 2 rear row of piles; 3 pile top connection structure; 4 main structure; 5 side structure; 6 superstructure area; 7 reserved anchorage structure; 8 retaining surface structural slab; 9 mortise and tenon shear key; 10 water stop facility; 11 foundation pile foundation; 12 foundation pit support pile foundation. Specific implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] Embodiment 1

[0020] As Figure 1 shown, a permanent-temporary combined layout structure of a sluice-pump building, the sluice-pump building includes a main structure 4, a side structure 5 and a superstructure area 6. Two rows of foundation piles are provided below the side structure 5. The top of each row of foundation piles is provided with a pile top connection structure 3. The pile top connection structure 3 is above the side structure 5, and the pile top connection structure 3 realizes the connection of the two foundation piles; one row of foundation piles close to the main structure 4 is the front row of piles 1, and the other row of foundation piles is the rear row of piles 2. The left side of the front row of piles 1 in the figure is the foundation pit side, and the right side in the figure is the filling side. Both the front row of piles and the rear row of piles adopt reinforced concrete cast-in-place piles.

[0021] Through the above settings, the pile top connection structure 3 can effectively control the overall stability and deformation of the foundation pit during the construction period, reduce the setting of foundation pit supports, provide a larger construction operation space on the foundation pit side, and serve as the foundation beam, foundation raft or bottom slab of the box foundation during the operation period, reducing the pile removal and support erection processes in the main construction, which can reduce the project cost and shorten the construction period; the pile top connection structure 3 enables the rear row of piles 2 to be connected to the main structure 4 to avoid material waste; the rear row of piles 2 and the front row of piles 1 form a redundant statically indeterminate space structure of double-row piles, which can effectively control the overall stability and deformation of the foundation pit and reduce the setting of foundation pit supports, providing a larger construction operation space.

[0022] As shown Figure 2 in the figure, the left side of the front row of piles 1 in the figure is the river side, and the right side of the figure is the backfill side. The front row of piles 1 includes a support foundation pile and a retaining surface structure slab 8. The retaining surface structure slab 8 is located between the main structure 4 and the support foundation pile. The top of the retaining surface structure slab 8 is a pile top connection structure 3. The pile top connection structure 3 at the top of the front row of piles 1 is provided with a reserved anchoring structure 7, and the reserved anchoring structure 7 is connected to the main structure 4. The reserved anchoring structure 7 can be a steel section member such as reserved steel bars, steel bar couplers or embedded parts that cooperate with the main structure 4. The pile top connection structure 3 is integrally cast and connected with the adjacent foundation piles. In this embodiment, the retaining surface structure slab 8 is 20 cm thick, the structural reinforcement has a diameter of 10 cm, and the stirrup spacing is 200 mm. The reserved anchoring structure 7 is reserved steel bars.

[0023] Through the above settings, the use of the reserved anchoring structure 7 facilitates the connection with the connection part of the main structure 4 to form an integral building, which can save building materials and shorten the project construction period; the retaining surface structure slab 8 is adjacent to the main structure 4 of the sluice pump building, and the size of the structural deformation joint is reserved. During the construction period, it serves as the retaining surface structure slab 8 of the foundation pit support pile foundation and also serves as the formwork support for the pouring of the main structure 4. Since the pile top connection structure 3 is integrally cast and connected with the foundation piles, according to the foundation design of the building during the operation period, it can be used as the foundation beam, foundation raft or the bottom slab of the box foundation of the building.

[0024] As shown Figure 3 in the figure, the support foundation pile includes a foundation pile foundation and a foundation pit support pile foundation. The buried depth of the foundation pit support pile foundation is less than the buried depth of the foundation pile foundation, and the top height of the foundation pit support pile foundation is equal to the top height of the foundation pile foundation. The buried depth of the rear row of piles 2 is equal to the buried depth of the foundation pile foundation, and the top height of the rear row of piles 2 is equal to the top height of the foundation pile foundation. In this embodiment, the designed pile diameter of the foundation pile foundation is 80 cm, the pile length is 30 m, and the spacing is 3 m; the designed pile diameter of the foundation pit support pile foundation is 80 cm, the pile length is 8 m, and the spacing is 1 m. The designed pile diameter of the rear row of piles 2 is 80 cm, the pile length is 30 m, and the spacing is 3 m.

[0025] The use of the foundation pit support pile foundation can ensure the stability of the foundation pit soil layer, effectively control the overall stability and deformation of the foundation pit, and effectively control the displacement and settlement of surrounding buildings; the setting of the foundation pile foundation has both the foundation bearing function and realizes the permanent and temporary combined layout structure; during the construction period, it forms an isolation curtain to separate the soil between this project and adjacent other buildings. To a certain extent, it can reduce the mutual interference caused by the differential deformation of different buildings in the site due to the soil layer difference.

[0026] The basic pile foundation and the foundation pit support pile foundation are arranged at intervals. The burial depths of the basic pile foundation and the foundation pit support pile foundation are different. The regular interval arrangement can effectively control the overall stability and deformation of the foundation pit, and avoid the soil layer becoming too compact due to the continuous setting of the support foundation piles, resulting in the uplift of the support foundation piles during subsequent pile driving, and can effectively control the pile top displacement.

[0027] As Figure 3 shown, a mortise and tenon shear key 9 is provided on the contact surface between the pile top connection structure 3 of the front row pile 1 and the main structure 4. Since the front row pile 1 needs to be used as the building foundation during the operation period, in order to effectively control the shear slip between the front row pile 1 and the main structure 4, the mortise and tenon shear key 9 is set to improve the load-bearing capacity of the building foundation. In this embodiment, the design of the mortise and tenon shear key 9 is 20 cm wide × 30 cm high × 30 cm thick, arranged at intervals of 1 m, and is poured together during the pouring process of the pile top connection structure 3.

[0028] A water stop facility 10 is provided on the contact surface between the pile top connection structure 3 of the front row pile 1 and the main structure 4. The water stop facility 10 includes a water stop sheet, a water stop belt, and a water stop steel plate. In this embodiment, the water stop facility 10 is a water stop steel plate with a hole in the middle. Since the concrete structures of the front row pile 1 and the sluice pump building are poured successively in time, a waterproof structure is set on the contact surface between the pile top connection structure 3 of the front row pile 1 and the main structure 4, which can play a role in preventing seepage and avoid water leakage.

[0029] The utility model solves the problems that due to the complexity and particularity of the sluice pump structure arrangement and the influence of external conditions for construction in different parts of the project, the sluice pump foundation pit often has the problems of irregular shape, different partition depths, open type, and poor geological conditions, making it difficult to set up the foundation pit support; and the double-row piles are used as temporary construction structures and are discarded and difficult to recycle after the sluice pump main body is completed and the soil is backfilled. The utility model has the following beneficial effects: By adopting the pile top connection structure 3 and regularly arranging the basic pile foundation and the foundation pit support pile foundation at intervals, the overall stability and deformation of the foundation pit can be effectively controlled during the construction period, the foundation pit support setting can be reduced, a larger construction operation space can be provided, and during the operation period, it can be used as the foundation beam or foundation raft or the bottom plate of the box foundation of the building, and is connected with the building through the reserved anchoring structure 7, reducing the pile removal and upright support procedures in the main construction, avoiding waste, being able to reduce the project cost, and shortening the construction period.

[0030] In this text, specific examples are used to illustrate the principle and implementation manner of the present application. The description of the above embodiments is only to help understand the method and its core idea of the present application. The above is only the preferred implementation manner of the present application. It should be noted that due to the limited nature of written expression and objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present application, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present application.

Claims

1. A permanent and temporary combined arrangement structure of a sluice pump building, comprising a main structure (4) and a side structure (5) connected to the side of the main structure (4), characterized in that: At least two rows of foundation piles are provided below the side structure (5), and a pile top connection structure (3) is provided on the top of each row of foundation piles. The top of the pile top connection structure (3) is connected to the side structure (5), and the pile top connection structure (3) realizes the connection of adjacent rows of foundation piles. A row of foundation piles close to the main structure (4) is a front row of piles (1), and a reserved anchoring structure (7) is provided on the pile top connection structure (3) at the top of the front row of piles (1), and the reserved anchoring structure (7) is connected to the main structure (4).

2. The permanent and temporary combination arrangement structure of a gate pump building according to claim 1 is characterized in that: The front row of piles (1) comprises supporting foundation piles and a retaining surface structural plate (8), the retaining surface structural plate (8) being located between the main structure (4) and the supporting foundation piles, and the top of the retaining surface structural plate (8) being a pile top connection structure (3).

3. The permanent and temporary combination arrangement structure of a gate pump building according to claim 2 is characterized in that: The supporting foundation piles comprise a foundation pile foundation (11) and a foundation pit supporting pile foundation (12); the burial depth of the foundation pit supporting pile foundation (12) is less than the burial depth of the foundation pile foundation (11); and the top height of the foundation pit supporting pile foundation (12) is equal to the top height of the foundation pile foundation (11).

4. The permanent and temporary combination arrangement structure of a gate pump building according to claim 3 is characterized in that: The foundation piles also include rear-row piles (2), the burial depth of the rear-row piles (2) being equal to the burial depth of the foundation pile foundation (11), and the top height of the rear-row piles (2) being equal to the top height of the foundation pile foundation (11).

5. A permanent and temporary combination arrangement structure of a gate pump building according to claim 3 or 4, characterized in that: The foundation pile foundation (11) and the foundation pit support pile foundation (12) are arranged at intervals.

6. The permanent and temporary combination arrangement structure of a gate pump building according to claim 5 is characterized in that: The pile top connection structure (3) is integrally cast and connected to the adjacent foundation piles.

7. The permanent and temporary combination arrangement structure of a gate pump building according to claim 6 is characterized in that: The contact surface between the pile top connection structure (3) and the main structure (4) of the front row piles (1) is provided with a mortise and tenon shear key (9).

8. The permanent and temporary combination arrangement structure of a gate pump building according to claim 6 is characterized in that: A water-stopping facility (10) is provided on the contact surface between the pile top connection structure (3) and the main structure (4) of the front row of piles (1).

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