Static pressure pile splicing structure and method for photovoltaic power station

Abstract

The invention discloses a static pressure pile splicing structure and method for a photovoltaic power station in the technical field of static pressure piles, the static pressure pile splicing structure is applied to a static pressure pile body, the static pressure pile body should be provided with a pile hole, and the static pressure pile splicing structure for the photovoltaic power station comprises an upper connecting outer sleeve ring, a lower connecting outer sleeve ring and an upper connecting outer sleeve ring, the lower connecting inner lantern ring is arranged at the bottom end of the static pressure pile body, and the lower connecting inner lantern ring and the upper connecting outer lantern ring are matched in a nested mode; the first axial positioning grooves are formed in the inner wall of the upper connecting outer sleeve ring and are distributed in the axial direction of the static pressure pile body; and the third axial positioning groove is formed in the outer wall of the lower connecting inner sleeve ring. Through nesting of the upper connecting outer lantern ring and the lower connecting inner lantern ring and the welding process, rapid pile connection of the two static pressure pile bodies can be achieved, the axial rotation limiting function on the pile connection position of the two static pressure pile bodies is achieved, it is ensured that the two static pressure pile bodies can be stably connected, and the high use value is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of static pressure piles, and in particular to a static pressure pile connection structure and method for a photovoltaic power station. Background Art

[0002] Static pile driving is a method of pile foundation construction. It is a pile driving process that uses the pile driving mechanism of a static pile driver to provide reaction force by using the deadweight of the pile driver and the counterweight on the frame to drive the movable pile driver frame by using its own gravity and the counterweight on the pile frame to pull the wire rope through the winch, so that the upper and lower piles are vertically aligned. Then the movable pile driver frame presses the upper pile down. After reaching the required pile driving force, the upper and lower piles are firmly connected, and then the movable frame is removed, and the new pile section is connected to the upper pile, and the next pile is pressed. The advantage of static pile driving is that there is no impact force, vibration, or noise during construction, and the interference to the surrounding environment is small. At the same time, since static pile driving is driven into the soil, the disturbance to the soil is small, which is conducive to maintaining the original structure of the soil, so the bearing capacity of the pile is also high. In addition, the construction quality of static piles is easy to control, and the depth of the pile and the bearing capacity can be controlled by adjusting the pile pressure and the speed. Therefore, it has the advantages of no damage to the piles, no noise, no vibration, no impact, and no pollution during construction.

[0003] During the construction of photovoltaic power stations, the stability of the foundation directly affects the installation and operation of photovoltaic modules. Static pressure piles play an irreplaceable role in the foundation treatment of photovoltaic power stations due to their unique advantages of high bearing capacity, small impact on the surrounding environment, high bearing capacity, high stability, fast construction speed and long life. However, during use, the existing static pressure piles will be subjected to axial rotation stress, forcing the two static pressure piles connected to rotate axially, causing the connection of the static pressure piles to loosen or even break, affecting the overall bearing performance of the static pressure piles. For this reason, the present application proposes a static pressure pile connection structure and method for photovoltaic power stations. Summary of the invention

[0004] The present invention aims to provide a static pressure pile connection structure and method for photovoltaic power stations, so as to solve the problem that the existing static pressure piles are subjected to axial rotation stress and axial rotation occurs, resulting in loosening or even breaking of the pile connection of the static pressure piles.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a static pressure pile connection structure for a photovoltaic power station, comprising a static pressure pile body, the static pressure pile body is provided with a pile hole, the top of the static pressure pile body is provided with an upper connecting outer sleeve, the bottom end of the static pressure pile body is provided with a lower connecting inner sleeve, the lower connecting inner sleeve and the upper connecting outer sleeve are nested and matched, a first axial positioning groove is provided on the inner wall of the upper connecting outer sleeve, the first axial positioning groove is distributed axially along the static pressure pile body, a third axial positioning groove is provided on the outer wall of the lower connecting inner sleeve, the third axial positioning groove is distributed axially along the static pressure pile body, the third axial positioning groove is connected to an axial positioning rod, the axial positioning rod is embedded with the third axial positioning groove and the first axial positioning groove, and the axial positioning rod can shuttle along the axial direction of the static pressure pile body and be inserted into the static pressure pile body.

[0006] Furthermore, the first axial positioning groove and the third axial positioning groove are both provided with a plurality of grooves, and the number and spacing of the first axial positioning grooves and the third axial positioning grooves are the same.

[0007] Furthermore, the first axial positioning groove and the third axial positioning groove are both semicircular, and the axial positioning rod is cylindrical.

[0008] Furthermore, a blocking member is sleeved on the lower connecting inner sleeve ring, and the blocking member is detachably connected to the lower connecting inner sleeve ring and is used to limit the lower position of the axial positioning rod.

[0009] Furthermore, the blocking member is two clamping rings, which are symmetrically clamped on the lower connecting inner ring, and the two clamping rings are spot-welded to the lower connecting inner ring, and the bottom end of the axial positioning rod abuts against the clamping ring.

[0010] Furthermore, a plug hole is opened inside the pile wall at the bottom end of the static pressure pile body, the number of the plug holes is equal to the number of the axial positioning rods, and the top end of the axial positioning rod is movably inserted into the plug hole.

[0011] Furthermore, the length of the axial positioning rod is greater than the sum of the heights of the upper connecting outer ring and the lower connecting inner ring.

[0012] Furthermore, the bottom end of the lower connecting inner ring is flush with the bottom end surface of the static pressure pile body, and a connecting column is provided at the bottom end of the static pressure pile body. The connecting column and the static pressure pile body are coaxially distributed, and the connecting column is adapted to be plugged into the pile hole.

[0013] Furthermore, an axial positioning ridge is provided on the inner wall at the top end of the pile hole, and a second axial positioning groove capable of accommodating the axial positioning ridge to be embedded is provided on the side wall of the connecting column, and the axial positioning ridge and the second axial positioning groove are both distributed axially along the static pressure pile body.

[0014] Furthermore, a static pressure pile connection method for a photovoltaic power station is applied to any of the static pressure pile connection structures for a photovoltaic power station described above, comprising the following steps:

[0015] S1: The static pressure pile body is prefabricated. The static pressure pile body and the connecting column are made of high-strength and corrosion-resistant materials. The connecting column is provided with a second axial positioning groove. A pile hole is reserved in the static pressure pile body. The inner wall at the top of the pile hole is preset with an axial positioning convex ridge. A plug hole is provided in the pile wall at the bottom of the static pressure pile body. An upper connecting outer ring is fixedly embedded at the top of the static pressure pile body. The upper connecting outer ring is flush with the outer surface of the static pressure pile body. A plurality of first axial positioning grooves are provided on the inner wall of the upper connecting outer ring. A lower connecting inner ring is fixedly embedded at the bottom of the static pressure pile body. The bottom end of the lower connecting inner ring is fixedly embedded. The lower connecting inner ring is flush with the bottom end surface of the static pressure pile body, and a plurality of third axial positioning grooves are provided on the outer wall of the lower connecting inner ring. The axial positioning rod is embedded in the third axial positioning groove and the axial positioning rod is inserted into the insertion hole. A blocking member is sleeved on the lower connecting inner ring, and the blocking member is spot welded on the lower connecting inner ring. The lower limit of the axial positioning rod is set so that there is a gap between the bottom end of the axial positioning rod and the bottom end surface of the static pressure pile body. The high-strength and corrosion-resistant materials include but are not limited to prestressed concrete. The upper connecting outer ring, the lower connecting inner ring and the axial positioning rod are made of steel;

[0016] S2: Connection of static pressure pile bodies. After one static pressure pile body is pressed into the foundation, the bottom end of another static pressure pile body is docked with the top end of the pressed static pressure pile body. Specifically, the connecting column is inserted into the pile hole to first position and guide the two static pressure pile bodies. The axial positioning convex ridge is embedded in the second axial positioning groove to limit the axial rotation of the two static pressure pile bodies. Then the lower connecting inner sleeve ring is embedded in the upper connecting outer sleeve ring. As the static pressure pile body is pressed down, the spot welding point between the blocking member and the lower connecting inner sleeve ring is compressed and broken, the blocking member falls off, the lower connecting inner sleeve ring is tightly fitted with the upper connecting outer sleeve ring, the axial positioning rod automatically falls and fits with the first axial positioning groove and the third axial positioning groove, the axial rotation limit is stabilized at the connection between the two static pressure pile bodies, and finally the upper connecting outer sleeve ring and the lower connecting inner sleeve ring are welded along the joint to complete the pile connection of the two static pressure pile bodies.

[0017] The beneficial effects of the present invention are as follows: 1. Through the nested design of the upper connecting outer ring and the lower connecting inner ring, the two static pressure pile bodies can be quickly connected, thereby improving the construction efficiency; 2. By utilizing the engagement of the axial positioning rod with the first axial positioning groove and the third axial positioning groove, the axial rotation of the pile connection is effectively limited, thereby ensuring the stable connection between the static pressure pile bodies and avoiding the cracking of the weld caused by the stress generated by the rotation at the pile connection, thereby improving the overall bearing capacity of the static pressure pile body; 3. By providing the axial positioning ridge and the second axial positioning groove between the connecting column and the pile hole, the structural strength of the pile connection part is enhanced, thereby further ensuring the firm connection of the two static pressure pile bodies; 4. A blocking piece is provided on the lower connecting inner ring, and the position of the axial positioning rod is fixed by spot welding, thereby simplifying the assembly process. When the two static pressure pile bodies are connected, the blocking piece breaks and falls off with the downward pressure action, and the axial positioning rod naturally falls into the positioning groove, thereby completing the axial rotation limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a static pressure pile connection structure for a photovoltaic power station according to the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the top structure;

[0020] Figure 3 for Figure 1 Schematic diagram of the bottom structure;

[0021] Figure 4 for Figure 1 Side view of both ends;

[0022] Figure 5 for Figure 4 Sectional view in the AA direction;

[0023] Figure 6 for Figure 1 A top view of

[0024] Figure 7 for Figure 1 Bottom view of . DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: static pressure pile body 1, upper connecting outer ring 2, lower connecting inner ring 3, connecting column 4, pile hole 5, first axial positioning groove 6, axial positioning ridge 7, second axial positioning groove 8, third axial positioning groove 9, axial positioning rod 10, blocking member 11, and socket 12.

[0027] The embodiment is basically as shown in the attached Figure 1 -Attached Figure 7 As shown: a static pressure pile connection structure for a photovoltaic power station, comprising a static pressure pile body 1, the static pressure pile body 1 is provided with a pile hole 5, the top of the static pressure pile body 1 is fixedly connected with an upper connecting outer sleeve 2, the bottom of the static pressure pile body 1 is fixedly connected with a lower connecting inner sleeve 3, the lower connecting inner sleeve 3 and the upper connecting outer sleeve 2 are nested and matched, the inner wall of the upper connecting outer sleeve 2 is provided with a first axial positioning groove 6, the first axial positioning groove 6 is axially distributed along the static pressure pile body 1, the outer wall of the lower connecting inner sleeve 3 is provided with a third axial positioning groove 9, the third axial positioning groove 9 is axially distributed along the static pressure pile body 1, the third axial positioning groove 9 is slidably connected with an axial positioning rod 10, the axial positioning rod 10 is embedded with the third axial positioning groove 9 and the first axial positioning groove 6, and the axial positioning rod 10 can shuttle along the axial direction of the static pressure pile body 1 and be inserted into the static pressure pile body 1.

[0028] As a preferred implementation manner of this embodiment, eight first axial positioning grooves 6 and eight third axial positioning grooves 9 are provided, the number and spacing of the first axial positioning grooves 6 and the third axial positioning grooves 9 are the same, the first axial positioning grooves 6 and the third axial positioning grooves 9 are both semicircular structures, and the axial positioning rod 10 is set to a cylindrical structure, which is convenient for fitting and can effectively resist axial rotational stress.

[0029] As a preferred implementation manner of this embodiment, a blocking member 11 is mounted on the lower connecting inner ring 3. The blocking member 11 is detachably connected to the lower connecting inner ring 3 and is used to limit the lower position of the axial positioning rod 10 for easy assembly.

[0030] Specifically, the blocking member 11 is a pair of snap rings, which are symmetrically clamped on the lower connecting inner ring 3 and spot-welded to the lower connecting inner ring 3. The bottom end of the axial positioning rod 10 abuts against the snap ring, and the snap ring is used to limit the lower position of the axial positioning rod 10, so that a certain distance is left between the lower end of the axial positioning rod 10 and the bottom end surface of the lower connecting inner ring 3. During the pile connection process, as the static pressure pile body 1 is pressed downward, the spot welding of the snap ring will be broken by the force, and then the snap ring will fall off, and the axial positioning rod 10 can be smoothly embedded between the first axial positioning groove 6 and the third axial positioning groove 9 for axial rotation limitation.

[0031] Furthermore, a plug hole 12 is provided inside the pile wall at the bottom end of the static pressure pile body 1, and the number of the plug holes 12 is equal to the number of the axial positioning rods 10, and the top end of the axial positioning rod 10 is movably inserted into the plug hole 12. The length of the axial positioning rod 10 is greater than the sum of the heights of the upper connecting outer ring 2 and the lower connecting inner ring 3. After the axial positioning rod 10 is inserted into the first axial positioning groove 6 and the third axial positioning groove 9, the top end of the axial positioning rod 10 is still partially in the plug hole 12, and the axial positioning rod 10 itself is limited.

[0032] As a preferred implementation mode of this embodiment, the bottom end of the lower connecting inner ring 3 is flush with the bottom end surface of the static pressure pile body 1, and a connecting column 4 is provided at the bottom end of the static pressure pile body 1. The connecting column 4 is coaxially distributed with the static pressure pile body 1, and the connecting column 4 is adapted to be plugged into the pile hole 5, so as to reinforce the pile joint of the two static pressure pile bodies 1.

[0033] Furthermore, an axial positioning rib 7 is provided on the inner wall at the top end of the pile hole 5, and a second axial positioning groove 8 is provided on the side wall of the connecting column 4, into which the axial positioning rib 7 can be embedded. Both the axial positioning rib 7 and the second axial positioning groove 8 are distributed axially along the static pressure pile body 1. When the connecting column 4 and the pile hole 5 are plugged in, the axial positioning rib 7 is embedded in the second axial positioning groove 8, which can first axially position the two static pressure pile bodies 1, so that the first axial positioning groove 6 and the third axial positioning groove 9 can always be aligned during the pile connection process.

[0034] A static pressure pile connection method for a photovoltaic power station comprises the following steps:

[0035] Step S1: The static pressure pile body 1 is prefabricated, and the static pressure pile body 1 and the connecting column 4 are made of high-strength and corrosion-resistant materials. The connecting column 4 is provided with a second axial positioning groove 8, and a pile hole 5 is reserved in the static pressure pile body 1. The inner wall of the top of the pile hole 5 is preset with an axial positioning convex ridge 7. A plug hole 12 is provided in the pile wall at the bottom end of the static pressure pile body 1. The upper connecting outer sleeve 2 is fixedly embedded in the top of the static pressure pile body 1. The upper connecting outer sleeve 2 is flush with the outer surface of the static pressure pile body 1. A plurality of first axial positioning grooves 6 are provided on the inner wall of the upper connecting outer sleeve 2. The lower connecting inner sleeve 3 is fixedly embedded in the bottom end of the static pressure pile body 1. The bottom end of the lower connecting inner sleeve 3 is flush with the outer surface of the static pressure pile body 1. The bottom end surface of the static pressure pile body 1 is flush, and a plurality of third axial positioning grooves 9 are provided on the outer wall of the lower connecting inner ring 3. The axial positioning rod 10 is embedded in the third axial positioning groove 9 and the axial positioning rod 10 is inserted into the insertion hole 12. A blocking member 11 is sleeved on the lower connecting inner ring 3, and the blocking member 11 is spot welded on the lower connecting inner ring 3. The axial positioning rod 10 is limited to the lower position so that there is a gap between the bottom end of the axial positioning rod 10 and the bottom end surface of the static pressure pile body 1. The high-strength and corrosion-resistant materials include but are not limited to prestressed concrete. The upper connecting outer ring 2, the lower connecting inner ring 3 and the axial positioning rod 10 are made of steel;

[0036] Step S2: static pressure pile body 1 is connected. After one static pressure pile body 1 is pressed into the foundation, the bottom end of the other static pressure pile body 1 is docked with the top end of the pressed static pressure pile body 1. Specifically, the connecting column 4 is inserted into the pile hole 5 to first position and guide the two static pressure pile bodies 1. The axial positioning convex ridge 7 is embedded in the second axial positioning groove 8 to limit the axial rotation of the two static pressure pile bodies 1. Then the lower connecting inner sleeve ring 3 is embedded in the upper connecting outer sleeve ring 2. As the static pressure pile body 1 is pressed down, the blocking member 11 and the lower connecting inner sleeve ring 3 are pressed and broken at the spot welding point, the blocking member 11 falls off, and the lower connecting inner sleeve ring 3 is tightly fitted with the upper connecting outer sleeve ring 2. The axial positioning rod 10 automatically falls and fits with the first axial positioning groove 6 and the third axial positioning groove 9 to stabilize the axial rotation limit at the connection of the two static pressure pile bodies 1. Finally, the upper connecting outer sleeve ring 2 and the lower connecting inner sleeve ring 3 are welded along the joint to complete the pile connection of the two static pressure pile bodies 1.

[0037] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A static pressure pile connection structure for a photovoltaic power station, comprising a static pressure pile body, the static pressure pile body being provided with a pile hole, characterized in that: The top of the static pressure pile body is provided with an upper connecting outer ring, the bottom end of the static pressure pile body is provided with a lower connecting inner ring, the lower connecting inner ring and the upper connecting outer ring are nested and matched, the inner wall of the upper connecting outer ring is provided with a first axial positioning groove, the first axial positioning groove is distributed axially along the static pressure pile body, the outer wall of the lower connecting inner ring is provided with a third axial positioning groove, the third axial positioning groove is distributed axially along the static pressure pile body, the third axial positioning groove is connected with an axial positioning rod, the axial positioning rod is embedded with the third axial positioning groove and the first axial positioning groove, and the axial positioning rod can shuttle axially along the static pressure pile body and be inserted into the static pressure pile body.

2. According to claim 1, a static pressure pile connection structure for a photovoltaic power station is characterized in that: The first axial positioning groove and the third axial positioning groove are both provided with a plurality of grooves, and the number and spacing of the first axial positioning grooves and the third axial positioning grooves are the same.

3. The static pressure pile connection structure for a photovoltaic power station according to claim 2 is characterized in that: The first axial positioning groove and the third axial positioning groove are both semicircular, and the axial positioning rod is cylindrical.

4. The static pressure pile connection structure for a photovoltaic power station according to claim 3 is characterized in that: A blocking member is sleeved on the lower connecting inner sleeve ring. The blocking member is detachably connected to the lower connecting inner sleeve ring and is used for limiting the lower position of the axial positioning rod.

5. The static pressure pile connection structure for a photovoltaic power station according to claim 4 is characterized in that: The blocking member is two clamping rings, which are symmetrically clamped on the lower connecting inner ring, and the two clamping rings are spot-welded to the lower connecting inner ring, and the bottom end of the axial positioning rod abuts against the clamping ring.

6. The static pressure pile connection structure for a photovoltaic power station according to claim 5, characterized in that: The pile wall at the bottom end of the static pressure pile body is provided with insertion holes, the number of the insertion holes is equal to the number of the axial positioning rods, and the top ends of the axial positioning rods are movably inserted into the insertion holes.

7. The static pressure pile connection structure for a photovoltaic power station according to claim 6, characterized in that: The length of the axial positioning rod is greater than the sum of the heights of the upper connecting outer ring and the lower connecting inner ring.

8. The static pressure pile connection structure for a photovoltaic power station according to claim 7, characterized in that: The bottom end of the lower connecting inner ring is flush with the bottom end surface of the static pressure pile body. The bottom end of the static pressure pile body is provided with a connecting column, which is coaxially distributed with the static pressure pile body and is adapted to be plugged into the pile hole.

9. The static pressure pile connection structure for a photovoltaic power station according to claim 8, characterized in that: An axial positioning ridge is arranged on the inner wall at the top end of the pile hole, and a second axial positioning groove capable of accommodating the axial positioning ridge to be embedded is opened on the side wall of the connecting column. Both the axial positioning ridge and the second axial positioning groove are distributed along the axial direction of the static pressure pile body.

10. A static pressure pile connection method for a photovoltaic power station, applied to the static pressure pile connection structure for a photovoltaic power station according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The static pressure pile body is prefabricated. The static pressure pile body and the connecting column are made of high-strength and corrosion-resistant materials. The connecting column is provided with a second axial positioning groove. A pile hole is reserved in the static pressure pile body. The inner wall at the top of the pile hole is preset with an axial positioning convex ridge. A plug hole is provided in the pile wall at the bottom of the static pressure pile body. An upper connecting outer ring is fixedly embedded at the top of the static pressure pile body. The upper connecting outer ring is flush with the outer surface of the static pressure pile body. A plurality of first axial positioning grooves are provided on the inner wall of the upper connecting outer ring. A lower connecting inner ring is fixedly embedded at the bottom of the static pressure pile body. The bottom end of the lower connecting inner ring is fixedly embedded. The lower connecting inner ring is flush with the bottom end surface of the static pressure pile body, and a plurality of third axial positioning grooves are provided on the outer wall of the lower connecting inner ring. The axial positioning rod is embedded in the third axial positioning groove and the axial positioning rod is inserted into the insertion hole. A blocking member is sleeved on the lower connecting inner ring, and the blocking member is spot welded on the lower connecting inner ring. The lower limit of the axial positioning rod is set so that there is a gap between the bottom end of the axial positioning rod and the bottom end surface of the static pressure pile body. The high-strength and corrosion-resistant materials include but are not limited to prestressed concrete. The upper connecting outer ring, the lower connecting inner ring and the axial positioning rod are made of steel; S2: Connection of static pressure pile bodies. After one static pressure pile body is pressed into the foundation, the bottom end of another static pressure pile body is docked with the top end of the pressed static pressure pile body. Specifically, the connecting column is inserted into the pile hole to first position and guide the two static pressure pile bodies. The axial positioning convex ridge is embedded in the second axial positioning groove to limit the axial rotation of the two static pressure pile bodies. Then the lower connecting inner sleeve ring is embedded in the upper connecting outer sleeve ring. As the static pressure pile body is pressed down, the spot welding point between the blocking member and the lower connecting inner sleeve ring is compressed and broken, the blocking member falls off, the lower connecting inner sleeve ring is tightly fitted with the upper connecting outer sleeve ring, the axial positioning rod automatically falls and fits with the first axial positioning groove and the third axial positioning groove, the axial rotation limit is stabilized at the connection between the two static pressure pile bodies, and finally the upper connecting outer sleeve ring and the lower connecting inner sleeve ring are welded along the joint to complete the pile connection of the two static pressure pile bodies.

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