Foundation pit supporting structure of water source booster pump station

Abstract

The invention relates to the field of water source booster pump station foundation pit supporting, in particular to a water source booster pump station foundation pit supporting structure which comprises four corner piles distributed at the four corners in a foundation pit, a plurality of steel pipe piles are jointly arranged among the four corner piles, and the steel pipe piles and the four corner piles define a rectangular structure to support the foundation pit. Inclined supporting pieces are arranged on the sides, close to one another, of the four corner piles. When the corner piles and the steel pipe piles are driven to support the foundation pit, through anchoring of the anchor rods on the inclined supporting pieces and multi-reinforcement design of the first stabilizing mechanism and the second stabilizing mechanism, an integral supporting structure of the steel pipe piles and the corner piles is formed, the stability of a foundation pit supporting system is improved, and the steel pipe piles are driven in a staggered and symmetrical piling sequence, so that the foundation pit supporting efficiency is improved. The defect that in a traditional technology, due to single-side concentrated piling, a soil body generates too large lateral extrusion is effectively overcome, the risk that the steel pipe piles subjected to pile sinking deviate is reduced, and the overall stability of a supporting structure is further guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water source pressurized pump station foundation pit support, and particularly relates to a water source pressurized pump station foundation pit support structure. BACKGROUND

[0002] In water conservancy construction, as a key facility for ensuring stable water supply, the stability and safety of the foundation pit support of a water source pressurized pump station are crucial. At present, for the foundation pit support of a water source pressurized pump station, a steel pipe pile support technology is generally used, that is, a plurality of steel pipe piles are sunk into the pit wall of the foundation pit to form a rectangular structure to achieve preliminary support, and then a steel enclose purlin is installed inside the steel pipe pile rectangular structure, and a pull anchor is arranged for auxiliary support, so as to enhance the overall stability of the foundation pit.

[0003] However, the above-mentioned traditional support process has certain deficiencies. In the steel pipe pile sinking process, because the construction process needs to sink the piles on each side of the foundation pit in stages, when the sinking of the steel pipe piles on one side of the foundation pit is completed, the sinking of the steel pipe piles on the other side is carried out, and the sunk steel pipe piles are in a state without targeted protection. The land vibration generated in the sinking operation can disturb the surrounding soil, and this disturbance can cause the sunk steel pipe piles to slightly deviate or tilt, thereby damaging the overall perpendicularity of the steel pipe piles. Once the perpendicularity of the steel pipe piles cannot be guaranteed, not only the single pile bearing capacity will be reduced, but also the overall stability of the foundation pit support structure will be weakened, which seriously affects the construction quality of the subsequent pump station. SUMMARY

[0004] In view of the above problems, the water source pressurized pump station foundation pit support structure provided by the embodiments of the present application can enhance the support effect of the foundation pit in the process of sinking the steel pipe piles, so that the newly sunk steel pipe piles can quickly form a whole with the existing support structure, and ensure that the foundation pit support system always maintains high stability during the whole construction process.

[0005] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions: the present application provides a water source pressurized pump station foundation pit support structure, which comprises four corner piles distributed at four corners inside the foundation pit, a plurality of steel pipe piles are arranged between the four corner piles, the plurality of steel pipe piles and the four corner piles form a rectangular structure to support the foundation pit, and the side of each of the four corner piles close to each other is provided with a diagonal brace, the upper parts of the four diagonal braces are jointly and fixedly provided with a steel enclose purlin for supporting the steel pipe piles, and the side of the steel enclose purlin close to the steel pipe piles is attached to the steel pipe piles.

[0006] A stabilizing mechanism one is arranged on each of the steel enclose purlins on the front and back sides, the stabilizing mechanism one comprises a bottom plate one arranged between the corresponding two diagonal braces and a supporting plate, the supporting plate is located at the upper part of the bottom plate one, and a reinforcing piece one for reinforcing the steel pipe piles in cooperation with the corresponding steel enclose purlin is arranged between the bottom plate one and the supporting plate.

[0007] Stabilizing mechanism 2 is provided on the steel walers on both the left and right sides. Stabilizing mechanism 2 includes a base plate 2 set between the corresponding two base plates 1. The base plate 2 is provided with a reinforcing component 2 that cooperates with the corresponding steel waler to reinforce the steel pipe pile.

[0008] The upper part of the steel waler is provided with multiple arc-shaped openings, and a movable ring is provided inside the arc-shaped opening. A compression ring that drives the movable ring to move is fixedly provided on the outer side of the steel pipe pile near the steel waler. The bottom of the compression ring is in close contact with the upper part of the movable ring.

[0009] According to an advantageous embodiment, the diagonal bracing member includes a bottom support plate and a diagonal bracing plate that are set on the outside of the corner pile by a plurality of bolts. The upper part of the bottom support plate is fixedly connected to the bottom of the diagonal bracing plate, and two anchor rods inserted into the foundation pit are fixedly installed at the bottom of the bottom support plate. The upper part of the diagonal bracing plate is connected to the bottom of the steel waler.

[0010] According to an advantageous embodiment, the first reinforcement component includes a first movable plate disposed on the outside of the corresponding movable ring. An inclined plate is fixedly disposed on the side of the first movable plate away from the movable ring. An insert rod is fixedly disposed on the inner side of the inclined plate, and the bottom end of the insert rod passes through the support plate and is inserted into the pit. A pressing plate is fixedly disposed on the side of the inclined plate near the first bottom plate.

[0011] According to an advantageous embodiment, the upper part of the steel waler is provided with a plurality of rectangular openings communicating with the arc-shaped openings, a movable plate is located in the corresponding rectangular opening, and the upper part of the base plate is provided with a groove for use with the extrusion plate, the extrusion plate is located in the corresponding groove.

[0012] According to an advantageous embodiment, a U-shaped clip is fixedly provided inside the rectangular opening and inside the groove. An outward expansion guide section is provided on both sides of the open end of the U-shaped clip. The transition between the U-shaped clip and the outward expansion guide section forms an inward buckling anti-detachment section. The moving plate and the pressing plate are both located on the inward buckling anti-detachment section of the corresponding U-shaped clip.

[0013] According to an advantageous embodiment, the second reinforcement component includes a second movable plate disposed within the corresponding rectangular opening. The second movable plate is located on the inner anti-detachment section of the corresponding U-shaped clip. A second insertion rod is fixedly disposed at the bottom of the second movable plate. The bottom end of the second insertion rod passes through the corresponding U-shaped clip, the steel waler, and the second bottom plate in sequence and is inserted into the pit.

[0014] According to an advantageous embodiment, the base plate one is connected to the base support plate by a plurality of bolts two, and the base plate two is connected to the base plate one by a plurality of bolts three.

[0015] According to an advantageous embodiment, a mounting plate is provided on the side of the brace plate near the support plate by a plurality of bolts, and the side of the mounting plate away from the brace plate is connected to the support plate.

[0016] According to an advantageous embodiment, the support plate has a plurality of circular openings 1 for inserting rod 1 to pass through, and the base plate 2 has a plurality of circular openings 2 for inserting rod 2 to pass through.

[0017] According to an advantageous embodiment, two symmetrically distributed locking plates are fixedly installed on the outer side of the steel pipe pile, and two adjacent locking plates are inserted together. Two locking plates are fixedly installed on the outer side of the corner pile near the steel pipe pile, and are inserted together with the corresponding locking plates.

[0018] Compared with the prior art, the water source booster pump station foundation pit support structure provided by the embodiments of the present invention has the following beneficial effects: 1. When the foundation pit is supported by driving corner piles and steel pipe piles, the present invention forms an overall support structure for the steel pipe piles and corner piles through the anchor rod anchoring on the inclined brace and the multiple reinforcement design of the first and second stabilizing mechanisms, thereby improving the stability of the foundation pit support system. In conjunction with the staggered and symmetrical pile driving sequence for the steel pipe piles, it effectively overcomes the excessive lateral compression of the soil caused by concentrated pile driving on one side in the traditional process, reduces the risk of displacement of the steel pipe piles that have been driven, and further ensures the overall stability of the support structure.

[0019] 2. This invention includes two stabilizing components. When the steel pipe pile is driven into the foundation pit, the horizontal displacement of the steel pipe pile can be effectively restricted by the interlocking of locking plate one and locking plate two. Then, when the steel pipe pile sinks, the compression ring and the moving ring are linked, driving the insertion rod one and insertion rod two to automatically insert into the foundation pit. At the same time, the U-shaped clamps limit and lock the moving plate one, moving plate two and compression plate, so that the steel pipe pile, steel waler, corner pile and foundation pit soil are tightly connected to form a stable overall structure, which effectively enhances the lateral support of the steel pipe pile and greatly improves the support effect of the foundation pit.

[0020] 3. In the process of driving steel pipe piles into the foundation pit, the present invention adopts an alternating and symmetrical pile driving sequence, which can evenly release the soil stress around the foundation pit and avoid the risk of displacement of the steel pipe piles that have been driven. At the same time, as the number of steel pipe piles increases, the support effect on the foundation pit tends to be enhanced. This gradually strengthening reinforcement method allows the newly driven steel pipe piles to quickly form an integral whole with the existing support structure, ensuring that the foundation pit support system maintains high stability throughout the entire construction process. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the present invention.

[0022] Figure 2 This is a diagram showing the state of the invention when it is buried in the foundation pit.

[0023] Figure 3 This is a structural diagram showing the connection between the corner pile, the diagonal brace, and the steel waler in this invention.

[0024] Figure 4 This is a diagram showing the connection structure between the steel pipe pile, the steel waler, and the stabilizing mechanism in this invention.

[0025] Figure 5 This is a diagram showing the connection structure between the steel pipe pile, the steel waler, and the second stabilizing mechanism in this invention.

[0026] Figure 6 This is a partial connection structure diagram of the steel waler and the movable plate in this invention.

[0027] Figure 7 This is a partial connection structure diagram of the steel waler and the extrusion plate in this invention.

[0028] Figure 8 This is a diagram showing the connection structure between the U-shaped card and the movable plate in this invention.

[0029] Figure 9 This is a sequence diagram of the driving process of steel pipe piles in this invention.

[0030] Figure 10 This is a two-state diagram showing the sequence of driving steel pipe piles in this invention.

[0031] The attached diagram is labeled as follows: 1. Corner pile; 2. Steel pipe pile; 3. Diagonal brace; 31. Bottom support plate; 32. Diagonal brace plate; 33. Anchor bolt; 4. Steel waler; 5. Stabilizing mechanism one; 51. Bottom plate one; 52. Support plate; 53. Reinforcing component one; 531. Moving plate one; 532. Inclined plate; 533. Insert rod one; 534. Extrusion plate; 6. Stabilizing mechanism two; 61. Bottom plate two; 62. Reinforcing component two; 621. Moving plate two; 622. Insert rod two; 7. Arc-shaped opening; 8. Moving ring; 9. Extrusion ring; 10. Rectangular opening; 11. Groove; 12. U-shaped clip; 13. Mounting plate; 14. Locking plate one; 15. Locking plate two. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Figure 10 This application will be described in further detail.

[0033] Please refer to the following: Figure 1 A water source booster pump station foundation pit support structure includes four corner piles 1 distributed at the four corners inside the foundation pit. Multiple steel pipe piles 2 are arranged together between the four corner piles 1. The multiple steel pipe piles 2 and the four corner piles 1 form a rectangular structure to support the foundation pit. Each of the four corner piles 1 has a diagonal brace 3 on the side that is close to each other. A steel waler 4 for supporting the steel pipe piles 2 is fixedly installed on the upper part of the four diagonal braces 3. The side of the steel waler 4 that is close to the steel pipe pile 2 is in contact with the steel pipe pile 2.

[0034] See Figure 3The diagonal bracing member 3 includes a bottom support plate 31 and a diagonal bracing plate 32, which are set on the outside of the corner pile 1 by multiple bolts. The upper part of the bottom support plate 31 is fixedly connected to the bottom of the diagonal bracing plate 32, and two anchor rods 33 inserted into the foundation pit are fixedly installed at the bottom of the bottom support plate 31. The upper part of the diagonal bracing plate 32 is connected to the bottom of the steel waler 4.

[0035] See Figure 1 Two symmetrically distributed locking plates 14 are fixedly installed on the outer side of the steel pipe pile 2, and the two adjacent locking plates 14 are inserted together. Two locking plates 15 are fixedly installed on the outer side of the corner pile 1 near the steel pipe pile 2 and are inserted into the corresponding locking plates 14.

[0036] When supporting the foundation pit, the staff accurately measured and determined the positions of the corner piles 1 at the four corners of the foundation pit. Using professional pile driving equipment (such as a pile driver), the four corner piles 1 were buried at the four corners of the foundation pit respectively, ensuring that the verticality and penetration depth of the corner piles 1 met the design standards. Then, the inclined support plate 32 and the bottom support plate 31 were installed on the corner piles 1 respectively. At this time, the anchor rod 33 at the bottom of the bottom support plate 31 was inserted into the foundation pit. With the cooperation of the inclined support plate 32 and the bottom support plate 31, the corner piles 1 can be stably fixed inside the foundation pit, effectively resisting the influence of external forces generated by subsequent construction, and ensuring the position and verticality of the corner piles 1.

[0037] After the four corner piles 1 and the diagonal bracing 3 are installed and secured, the workers install the four steel walers 4 on the four diagonal bracing plates 32. Then, according to the design spacing, multiple steel pipe piles 2 are driven sequentially between the four corner piles 1, so that the multiple steel pipe piles 2 and the four corner piles 1 together form a rectangular structure, completing the initial support of the foundation pit. At this time, the quick and accurate insertion between the steel pipe piles 2 and the corner piles 1 and between the steel pipe piles 2 and each other can be achieved through the locking plate 14 and the locking plate 25. Then, with the cooperation of the steel walers 4, the displacement of the steel pipe piles 2 can be effectively restricted and the steel pipe piles 2 can be effectively supported, enhancing the overall connection stability.

[0038] See Figure 3 , Figure 4 and Figure 6 The upper part of the steel waler 4 is provided with multiple arc-shaped openings 7, and a movable ring 8 is provided inside the arc-shaped opening 7. A compression ring 9 that drives the movable ring 8 is fixedly installed on the outer side of the steel pipe pile 2 near the steel waler 4. The bottom of the compression ring 9 is in close contact with the upper part of the movable ring 8.

[0039] See Figure 1 , Figure 2 and Figure 3Stabilizing mechanisms 5 are provided on both the front and rear steel walers 4. Each stabilizing mechanism 5 includes a base plate 51 and a support plate 52 located between two corresponding diagonal braces 3. A reinforcing component 53 is provided between the base plate 51 and the support plate 52 to reinforce the steel pipe pile 2 in conjunction with the corresponding steel waler 4. The base plate 51 is connected to the bottom support plate 31 by multiple bolts 2, and the support plate 52 is located on the upper part of the base plate 51. An mounting plate 13 is provided on the side of the diagonal brace 32 near the support plate 52 by multiple bolts 3. The side of the mounting plate 13 away from the diagonal brace 32 is connected to the support plate 52.

[0040] See Figure 4 The reinforcement component 53 includes a movable plate 531 disposed on the outside of the corresponding movable ring 8. An inclined plate 532 is fixedly disposed on the side of the movable plate 531 away from the movable ring 8. An insertion rod 533 is fixedly disposed on the inner side of the inclined plate 532. A plurality of circular openings are provided on the support plate 52 for the insertion rod 533 to pass through, and the bottom end of the insertion rod 533 passes through the support plate 52 and is inserted into the pit. A pressing plate 534 is fixedly disposed on the side of the inclined plate 532 near the bottom plate 51.

[0041] See Figure 6 and Figure 7 The upper part of the steel waler 4 has multiple rectangular openings 10 that communicate with the arc-shaped opening 7. The movable plate 531 is located in the corresponding rectangular opening 10. The upper part of the base plate 51 has a groove 11 that cooperates with the extrusion plate 534. The extrusion plate 534 is located in the corresponding groove 11. U-shaped clips 12 are fixedly installed inside the rectangular opening 10 and the groove 11. Both sides of the open end of the U-shaped clip 12 are provided with outward expansion guide sections. The transition between the U-shaped clip 12 and the outward expansion guide sections forms an inward buckling anti-detachment section. The movable plate 531 and the extrusion plate 534 are both located in the inward buckling anti-detachment section on the corresponding U-shaped clip 12.

[0042] After the diagonal pile 1 is fixed, when driving multiple steel pipe piles 2 on the front and rear sides, the workers first install the base plate 51 and the support plate 52 between the corresponding two bottom support plates 31 and diagonal support plates 32, and then install the reinforcement part 53 on the corresponding steel waler 4. The moving plate 531 and the pressing plate 534 are respectively aligned with the rectangular opening 10 on the steel waler 4 and the groove 11 on the base plate 51, so that the moving plate 531 and the pressing plate 534 are respectively placed in the outer expansion guide section of the corresponding U-shaped clamp 12. At this time, the moving plate 531 is located at the upper end of the rectangular opening 10, the pressing plate 534 is located at the upper end of the groove 11, and the bottom end of the insertion rod 533 passes through the support plate 52 and contacts the foundation pit, thus completing the preliminary pre-installation of the stabilizing mechanism 5 on the steel waler 4 and the diagonal support 3, which facilitates the subsequent support of the steel pipe piles 2.

[0043] When using a pile driving device to drive multiple steel pipe piles 2 on both the front and rear sides, the compression ring 9 on the outer side of the steel pipe pile 2 moves down synchronously with the steel pipe pile 2. When the compression ring 9 contacts the moving ring 8 inside the arc-shaped opening 7 on the steel waler 4, the continuously pressing compression ring 9 generates a downward squeezing force on the moving ring 8, forcing the moving ring 8 to move into the arc-shaped opening 7. When the moving ring 8 moves down into the arc-shaped opening 7, the steel pipe pile 2 stops moving at the predetermined position. As the moving ring 8 moves down, it drives the moving plate 5. 31 moves downwards synchronously. The moving plate 531 slides down along the rectangular opening 10, passes through the outward expansion guide section of the U-shaped clamp 12, and enters the inner locking anti-disengagement section. At the same time, the inclined plate 532 connected to the moving plate 531 drives the pressing plate 534 to move down along the groove 11, and similarly engages with the inner locking anti-disengagement section of the U-shaped clamp 12. The inner locking anti-disengagement section of the U-shaped clamp 12, through its special inward retraction structure, limits the moving plate 531 and the pressing plate 534, preventing them from coming out upwards and achieving automatic locking (e.g., Figure 8 (As shown).

[0044] During the downward movement of the moving plate 531 and the pressing plate 534, the inclined plate 532 drives the insert rod 533 to move downward synchronously. The bottom end of the insert rod 533 is gradually inserted into the foundation pit soil. As the insert rod 533 goes deeper, in conjunction with the pressure of the pressing plate 534 on the bottom plate 51 and the support of the support plate 52, the front and rear steel pipe piles 2, steel walers 4, corner piles 1 and foundation pit soil are tightly connected to form a stable overall structure. As the number of steel pipe piles 2 increases, the overall support effect becomes stronger, thereby effectively enhancing the lateral support of the steel pipe piles 2 and improving the stability of the foundation pit support system.

[0045] See Figure 1 , Figure 2 and Figure 3 Stabilizing mechanism 2 6 is provided on both the left and right steel walers 4. Stabilizing mechanism 2 6 includes a base plate 2 61 set between the corresponding two base plates 1 51. The base plate 2 61 is provided with a reinforcing component 2 62 that cooperates with the corresponding steel waler 4 to reinforce the steel pipe pile 2. The base plate 2 61 and the base plate 1 51 are connected by multiple bolts 3.

[0046] See Figure 5 The second reinforcement component 62 includes a movable plate 621 set in the corresponding rectangular opening 10. The movable plate 621 is located on the inner anti-detachment section of the corresponding U-shaped clip 12. The bottom of the movable plate 621 is fixedly provided with a plug rod 622. The bottom end of the plug rod 622 passes through the corresponding U-shaped clip 12, the steel waler 4 and the bottom plate 61 in sequence and is inserted into the pit. The bottom plate 61 has multiple round openings for the plug rod 622 to pass through.

[0047] After driving multiple steel pipe piles 2 on the front and rear sides, multiple steel pipe piles 2 on the left and right sides can be driven. The workers can first install the base plate 2 61 between the two base plates 1 51, and then install the reinforcement part 2 62 on the corresponding steel waler 4. At this time, the bottom end of the insertion rod 2 622 passes through the corresponding steel waler 4 and the base plate 2 61 in sequence and contacts the foundation pit. The moving plate 2 621 is located in the outer expansion guide section of the corresponding U-shaped clamp 12. Then, when driving the steel pipe piles 2, the cooperation of the compression ring 9 and the moving ring 8 can make the moving plate 2 621 move to the corresponding U-shaped clamp 12. When the inner anti-detachment section of the clip 12 moves, the second movable plate 621 can drive the second inserted rod 622 to move down and insert into the foundation pit, thereby tightly connecting the steel pipe piles 2, steel walers 4, corner piles 1 and the foundation pit soil on both sides. Since the first bottom plate 51 is also connected to the second bottom plate 61, the first stabilizing mechanism 5 and the second stabilizing mechanism 6 form an integral force-bearing frame. The lateral earth pressure borne by the steel pipe piles 2 can be transmitted to the first stabilizing mechanism 5 and the second stabilizing mechanism 6 through the steel walers 4, and then evenly distributed into the foundation pit soil, further enhancing the collaborative working ability of the entire support system.

[0048] When driving piles for the steel walers 4 between the four corner piles 1, to further ensure overall stability, workers can adjust the driving sequence of the steel pipe piles 2. First, drive the steel pipe piles 2 into the middle positions on both the front and rear sides of the foundation pit, and then drive the steel pipe piles 2 into the middle positions on the left and right sides of the foundation pit (e.g., ...). Figure 9 As shown), then continue driving steel pipe piles 2 next to the steel pipe pile 2 at the middle position on both the front and rear sides of the foundation pit, and then continue driving steel pipe piles 2 next to the steel pipe pile 2 at the middle position on both the left and right sides of the foundation pit (as shown). Figure 10 As shown), all the steel pipe piles 2 are driven in this order. This staggered and symmetrical pile driving sequence can release the soil stress around the foundation pit evenly, avoid excessive lateral compression of the soil caused by concentrated pile driving on one side, thereby reducing the risk of displacement of the completed steel pipe piles 2 and ensuring the overall stability.

[0049] In specific work, when supporting the foundation pit, the four corner piles 1 are buried in the four corners of the foundation pit respectively. Then, the diagonal bracing 3 is installed on the corner piles 1. Next, the steel waler 4 is installed on the diagonal bracing 3. Then, the bottom plate 1 51 and the support plate 52 are installed on the corresponding diagonal bracing 3. Then, the bottom plate 2 61 is connected to the bottom plate 1 51.

[0050] When driving the steel pipe piles 2, the first reinforcement component 53 and the second reinforcement component 62 are installed. Then, multiple steel pipe piles 2 are driven into the foundation pit in a staggered and symmetrical pile driving sequence. As the steel pipe piles 2 are driven in, the compression ring 9 compresses the moving ring 8, which can drive the moving plate 531, the insertion rod 533, the compression plate 534, the moving plate 621, and the insertion rod 622 to move. This makes the stabilizing mechanism 5 and the stabilizing mechanism 6 form an integral force-bearing frame to stabilize and support the steel pipe piles 2. At the same time, it can make the soil stress around the foundation pit release evenly, avoid excessive lateral compression of the soil caused by concentrated pile driving on one side, thereby reducing the risk of displacement of the steel pipe piles 2 that have been driven, and thus ensuring the overall stability.

[0051] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A support structure for a water source booster pump station foundation pit, comprising four corner piles distributed at the four corners of the foundation pit, with multiple steel pipe piles arranged between the four corner piles, the multiple steel pipe piles and the four corner piles forming a rectangular structure to support the foundation pit, characterized in that: Each of the four corner piles is provided with a diagonal brace on one side that is close to each other. A steel waler for supporting the steel pipe pile is fixedly installed on the upper part of the four diagonal braces. The side of the steel waler that is close to the steel pipe pile is in contact with the steel pipe pile. A stabilizing mechanism is provided on both the front and rear steel walers. The stabilizing mechanism includes a base plate and a support plate located between the two corresponding diagonal braces. The support plate is located on the upper part of the base plate. A reinforcing component is provided between the base plate and the support plate to reinforce the steel pipe pile in conjunction with the corresponding steel waler. Stabilizing mechanism 2 is provided on both the left and right steel walers. Stabilizing mechanism 2 includes a base plate 2 set between the corresponding two base plates 1. The base plate 2 is provided with a reinforcing component 2 that cooperates with the corresponding steel waler to reinforce the steel pipe pile. The upper part of the steel waler is provided with multiple arc-shaped openings, and a movable ring is provided inside the arc-shaped opening. A compression ring that drives the movable ring to move is fixedly provided on the outer side of the steel pipe pile near the steel waler. The bottom of the compression ring is in close contact with the upper part of the movable ring. The steel pipe pile driving adopts an alternating and symmetrical driving sequence. After the pile driving is completed, it is reinforced by multiple diagonal piles and steel pipe piles through diagonal bracing, stabilizing mechanism one and stabilizing mechanism two.

2. The foundation pit support structure for a water source booster pump station according to claim 1, characterized in that, The diagonal bracing component includes a bottom support plate and a diagonal bracing plate, which are set on the outside of the corner pile by multiple bolts. The upper part of the bottom support plate is fixedly connected to the bottom of the diagonal bracing plate, and two anchor rods inserted into the foundation pit are fixedly installed at the bottom of the bottom support plate. The upper part of the diagonal bracing plate is connected to the bottom of the steel waler.

3. The foundation pit support structure for a water source booster pump station according to claim 1, characterized in that, The first reinforcement component includes a first movable plate disposed on the outside of the corresponding movable ring. An inclined plate is fixedly disposed on the side of the first movable plate away from the movable ring. An insert rod is fixedly disposed on the inner side of the inclined plate, and the bottom end of the insert rod passes through the support plate and is inserted into the pit. A compression plate is fixedly disposed on the side of the inclined plate close to the first bottom plate.

4. The foundation pit support structure for a water source booster pump station according to claim 3, characterized in that, The upper part of the steel waler has multiple rectangular openings that communicate with the arc-shaped openings. The movable plate is located in the corresponding rectangular opening. The upper part of the base plate has a groove that cooperates with the extrusion plate. The extrusion plate is located in the corresponding groove.

5. The foundation pit support structure for a water source booster pump station according to claim 4, characterized in that, Both the rectangular opening and the groove are fixedly equipped with U-shaped clips. Both sides of the open U-shaped clips are provided with outward expansion guide sections. The transition between the U-shaped clips and the outward expansion guide sections forms an inward buckling anti-detachment section. The moving plate and the pressing plate are both located on the inward buckling anti-detachment section of the corresponding U-shaped clips.

6. The foundation pit support structure for a water source booster pump station according to claim 5, characterized in that, The second reinforcement component includes a movable plate two set in the corresponding rectangular opening. The movable plate two is located on the inner buckle anti-detachment section of the corresponding U-shaped clip. A plug rod two is fixedly set at the bottom of the movable plate two. The bottom end of the plug rod two passes through the corresponding U-shaped clip, the steel waler and the bottom plate two in sequence and is inserted into the foundation pit.

7. The foundation pit support structure for a water source booster pump station according to claim 1, characterized in that, The base plate 1 is connected to the base support plate by multiple bolts 2, and the base plate 2 is connected to the base plate 1 by multiple bolts 3.

8. The foundation pit support structure for a water source booster pump station according to claim 2, characterized in that, The side of the diagonal brace closest to the support plate is fitted with a mounting plate by multiple bolts, and the side of the mounting plate furthest from the diagonal brace is connected to the support plate.

9. The foundation pit support structure for a water source booster pump station according to claim 5, characterized in that, The support plate has multiple circular openings for inserting rod 1 to pass through, and the base plate 2 has multiple circular openings for inserting rod 2 to pass through.

10. The foundation pit support structure for a water source booster pump station according to claim 1, characterized in that, Two symmetrically distributed locking plates are fixedly installed on the outer side of the steel pipe pile, and two adjacent locking plates are inserted together. Two locking plates are fixedly installed on the outer side of the corner pile near the steel pipe pile, and are inserted into the corresponding locking plates.

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