Prestressed concrete filled steel pipe pile and method of use thereof

Abstract

This invention relates to the field of steel pipe pile technology and discloses a prestressed steel pipe concrete pile and its usage method, including an overall external mechanism, which also includes an overall chassis. The invention is designed with a bottom fixing mechanism. The soil characteristics from the soil surface to 40 cm underground are relatively dry, fine and have poor seismic resistance. The soil characteristics below 40 cm are moist, soft and have poor stability. According to the normal construction process of small villas, the foundation should be buried to a depth of 100 cm. When the foundation of this invention is being fixed, the bottom fixing mechanism extends outward due to soil resistance and stores a portion of the fine and dry surface soil inside the fixing column. After going deeper, it mixes with the moister soil underground, making the equipment more stable. It takes advantage of the large temperature difference between day and night in suburban areas, the poor thermal conductivity of the outer wall of the overall stone slab, and the low temperature. The overall condensation plate is a metal product with high thermal conductivity, which absorbs the surrounding temperature and prevents condensation from occurring inside.

Description

Technical Field

[0001] This invention relates to the field of steel pipe pile equipment technology, specifically to a prestressed steel pipe concrete pile and its application method. Background Technology

[0002] Prestressed steel pipe piles, also known as precast concrete piles, are prefabricated in a precast component processing plant, cured to the design strength, transported to the construction site, and driven into the soil using a pile driver. A foundation beam (slab) is then poured on top of the pile. To resist hammering and penetrate the soil, the stirrups at the pile top and tip are densely packed, and the main reinforcement at the pile tip is bent up and welded to a mandrel. Reinforced concrete precast piles have advantages such as simple manufacturing, high strength, high rigidity, and the ability to be made into various cross-sectional shapes. However, manual labor typically results in lower construction efficiency and insufficient strength, which limits the construction technology available.

[0003] Currently, it is difficult to transport equipment and materials in suburban areas. After installation, the equipment is still affected by the natural environment (rain erosion, ground vibration, etc.), resulting in gaps between the equipment and the soil. The large temperature difference between day and night in suburban areas makes the iron and copper products inside the equipment prone to condensation, affecting the service life of the product. On the other hand, pipe piles are products used for a long time. Although staff will inspect them, the metal itself is easily corroded by oxygen, resulting in metal oxidation, which will damage the metal and affect the service life of the equipment. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a prestressed steel-concrete composite pipe pile, including an integral external mechanism, which also includes an integral chassis. Several integral side grooves are opened on the top outer wall of the integral chassis, and several integral side columns are fixedly connected to the central axis of the top outer wall of the integral chassis. The integral external mechanism provides an installation position for subsequent mechanisms and plays a stabilizing role during operation.

[0005] The collection obstruction mechanism includes a collection bottom ring fixedly connected to the outer wall of the top of several integral side columns. A collection top plate is fixedly connected to the central axis of the outer wall of the top of the collection bottom ring. Several small collection grooves are opened on the outer wall of the top of the collection top plate. The collection obstruction mechanism collects water generated from the outside and transmits it downwards. When the conditions are met, the water reaches the bottom fixed mechanism through the small collection grooves.

[0006] The bottom fixing mechanism includes several fixed small columns fixedly connected to the central axis of the outer wall of the top of the overall chassis. Several small fixing grooves are opened on the side walls of the fixed small columns, and fixed collection plates are fixedly connected to the inner walls of the overall side columns. This mechanism takes advantage of the characteristics of the surface soil, which is relatively dry, fine and has poor shock resistance, and the characteristics of the soil below, which is moist, soft and has poor stability. The mechanism achieves a more solid effect by mixing the soil.

[0007] Preferably, the overall external mechanism also includes several integral condensation plates fixedly connected to the top outer wall of the integral side channel. Several integral stone slabs are fixedly connected to the side walls of the integral condensation plates. An integral central hole is opened at the central axis of the top outer wall of the integral chassis. Taking advantage of the large temperature difference between day and night in suburban areas, the outer wall of the integral stone slab has poor thermal conductivity and low temperature in the early morning. The integral condensation plate is made of metal and has high thermal conductivity. Installing an integral condensation plate made of metal on the outer wall of the equipment can actively absorb the temperature changes around the device, allowing the condensed water to flow to a specific area and preventing water from seeping into the interior of the equipment and damaging the internal mechanical structure.

[0008] Preferably, the overall external mechanism also includes several integral collection troughs opened on the outer wall of the top of the overall chassis, and several integral small holes are opened on the inner wall of the several integral collection troughs. An integral baffle is fixedly connected to the outer wall of the overall chassis. The integral baffle is made of concrete, and the inclined angle can effectively prevent animal excrement from entering the equipment and corroding the metal equipment, thus extending the service life of the product.

[0009] Preferably, the collection obstruction mechanism further includes a collection filter screen fixedly connected to the inner wall of the collection trough, a collection center hole opened on the top outer wall of the collection top plate, a collection fixing body fixedly connected to the top outer wall of the collection center hole, a collection small body fixedly connected to the top outer wall of the collection top plate, a collection large plate fixedly connected to the end of the collection small body away from the collection top plate, a collection baffle fixedly connected to the top outer wall of the collection large plate, and several collection small columns fixedly connected to the side wall of the collection large plate. The ends of the several collection small columns away from the collection top plate are fixedly connected to the outer wall of the overall chassis. This mechanism utilizes the fact that when air enters the internal contraction part from the expansion part of the collection large plate, the air velocity increases due to the reduced cross-sectional area of ​​the contraction part, thus achieving a gradual cooling effect.

[0010] Preferably, the bottom fixing mechanism further includes a fixed main column fixedly connected to the outer wall of the bottom of the fixed collection plate, a fixed rotating column rotatably connected to the inner wall of the fixed main column, the side wall of the fixed rotating column rotatably connected to the inner wall of the overall side groove, and a plurality of fixed side grooves are opened on the side wall of the fixed main column. When the foundation of the present invention is being fixed, the bottom fixing mechanism extends outward due to the resistance of the soil, and stores a portion of the fine, dry surface soil inside the fixed main column. After going deeper, it mixes with the more moist soil underground, making the equipment more stable.

[0011] Preferably, the bottom fixing mechanism also includes a fixed water inlet opened on the inner wall of the fixed side groove, several fixed small openings opened on the outer wall of the fixed main column, several fixed side teeth fixedly connected to the front end of the outer wall of the fixed main column, a fixed inclined groove opened at the end of the fixed main column away from the fixed collection plate, and several fixed square grooves opened at the bottom of the outer wall of the fixed main column. Using the above method, the water source formed enters the fixed main column through the fixed side pipe. By wetting the soil, the water source carries some mud and sand to fill the gaps and approach the soil surface. When the weather rains, the soil absorbs the water source and becomes soft, filling the gaps between the soil and the fixed main column caused by vibration. This can effectively prevent the gap between the fixed column and the soil surface from widening during vibration. In this process, the fixed main column continuously undergoes a repair process of drought and moisture, forming an "oxygen-free film" on the outside of the fixed main column to achieve the effect of isolating air and avoiding metal corrosion.

[0012] Preferably, the bottom fixing mechanism also includes a fixing side tube rotatably connected to the inner wall of several fixing side grooves. Several fixing small holes are opened on the outer wall of the fixing side tube, and a fixing rotating plate is rotatably connected to the inner wall of several fixing square grooves. The "oxygen-insulating membrane" can absorb and dissipate a lot of heat during the day. At night, it allows the equipment to cool down gradually, which can prevent condensation from forming on the internal metal and copper products due to large temperature changes, thus affecting the service life of the product.

[0013] The fixing method for prestressed steel-concrete composite pipe piles includes the following steps:

[0014] S1: Place the prestressed steel pipe concrete pile in the required position and drive it into the soil by hammering, so that the bottom fixing mechanism is completely submerged in the soil.

[0015] S2: The overall condensation plate actively absorbs temperature changes around the device, and the collection plate is tilted upwards, which obstructs air from passing through the bottom and causes the condensed water to flow to a specific area.

[0016] S3: During the pounding process, the soil is shoveled by the fixed inclined groove, allowing the soil to enter the interior of the fixed main column, and the dew is collected by the fixed side pipe and dispersed to the perimeter of the fixed main column.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention is designed with a bottom fixing mechanism. The soil on the surface is dry and fine with poor earthquake resistance, while the soil underneath is moist and soft with poor fixation. When the foundation of the present invention is being fixed, the bottom fixing mechanism extends outward due to soil resistance and stores a portion of the fine and dry soil on the surface inside the fixing column. After going deeper, it mixes with the moist soil underneath, making the equipment more stable.

[0019] (2) The first effect of this invention is that the water source formed enters the fixed main column through the fixed side pipe. By wetting the soil, the water source carries some mud and sand to fill the gap. When the weather rains, the soil absorbs the water source and becomes soft, filling the gap between the soil and the fixed main column caused by vibration. This can effectively prevent the gap between the fixed column and the soil surface from becoming larger during vibration. In this process, the fixed main column is constantly subjected to the repair process of drought and moisture, so that a layer of "oxygen-free film" is formed on the outside of the fixed main column to achieve the effect of isolating the air and avoiding the phenomenon of metal corrosion.

[0020] (3) The present invention takes advantage of the large temperature difference between day and night in the suburbs. In the early morning, the thermal conductivity of the outer wall of the stone slab is poor and the temperature is low. The condensation plate is made of metal and has high thermal conductivity. A metal condensation plate is installed on the outer wall of the device. It can actively absorb the temperature changes around the device and let the condensed water flow to a specific area to prevent water from seeping into the device and damaging the internal mechanical structure.

[0021] (4) The present invention utilizes the above process to form an "oxygen-free membrane" on the outside. During the day, the oxygen-free layer can absorb and dissipate a lot of heat. At night, it allows the equipment to cool down gradually, which can prevent the internal metal and copper products from condensing due to large temperature changes, thus affecting the service life of the product. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3This is a schematic diagram of the overall external structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the bottom ring for collecting data according to the present invention;

[0027] Figure 5 This is a cross-sectional schematic diagram of the obstruction mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the bottom fixing mechanism of the present invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the bottom fixing mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the fixed side tube of the present invention;

[0031] Figure 9 This is a schematic diagram of the overall fixing operation of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] In the diagram: 1. Overall external structure; 101. Overall chassis; 102. Overall side channel; 103. Overall side column; 104. Overall condensation plate; 105. Overall stone slab; 106. Overall center hole; 107. Overall collection trough; 108. Overall small hole; 109. Overall baffle; 2. Collection obstruction mechanism; 201. Collection bottom ring; 202. Collection top plate; 203. Collection trough; 204. Collection filter; 205. Collection center hole; 206. Collection fixing body; 207. Collection small body 208. Collection plate; 209. Collection baffle; 210. Collection column; 3. Bottom fixing mechanism; 301. Fixing column; 302. Fixing side channel; 303. Fixing collection plate; 304. Fixing main column; 305. Fixing rotating column; 306. Fixing side channel; 307. Fixing inlet; 308. Fixing small opening; 309. Fixing side teeth; 310. Fixing inclined channel; 311. Fixing square channel; 312. Fixing side pipe; 313. Fixing small hole; 314. Fixing rotating plate. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figure 1 - Figure 3The present invention is a prestressed steel pipe concrete pipe pile, including an integral external mechanism 1, which also includes an integral chassis 101. Several integral side grooves 102 are opened on the top outer wall of the integral chassis 101, and several integral side columns 103 are fixedly connected to the central axis of the top outer wall of the integral chassis 101. The integral external mechanism 1 provides an installation position for subsequent mechanisms and plays a stabilizing role during operation.

[0036] The collection obstruction mechanism 2 includes a collection bottom ring 201 fixedly connected to the top outer wall of several integral side columns 103. A collection top plate 202 is fixedly connected to the central axis of the top outer wall of the collection bottom ring 201. Several collection slots 203 are opened on the top outer wall of the collection top plate 202. The collection obstruction mechanism 2 collects water generated from the outside and transmits it downwards. When the conditions are met, the water reaches the bottom fixing mechanism 3 through the collection slots 203.

[0037] The bottom fixing mechanism 3 includes several fixing columns 301 fixedly connected to the central axis of the outer wall of the top of the overall chassis 101. Several fixing small side grooves 302 are opened on the side walls of the fixing columns 301. Fixed collection plates 303 are fixedly connected to the inner walls of the overall side columns 103. This mechanism takes advantage of the characteristics of the surface soil, which is relatively dry, fine and has poor shock resistance, and the characteristics of the soil below, which is moist, soft and has poor stability. It achieves a more solid effect by mixing the soil.

[0038] The overall external mechanism 1 also includes several integral condensation plates 104 fixedly connected to the top outer wall of the integral side channel 102. Several integral stone slabs 105 are fixedly connected to the side walls of the integral condensation plates 104. An integral center hole 106 is opened at the central axis of the top outer wall of the integral chassis 101. Taking advantage of the large temperature difference between day and night in suburban areas, the outer wall of the integral stone slabs 105 has poor thermal conductivity and low temperature in the early morning. The integral condensation plates 104 are made of metal and have high thermal conductivity. Installing an integral condensation plate 104 made of metal on the outer wall of the equipment can actively absorb the temperature changes around the device, allowing the condensed water to flow to a specific area and preventing water from seeping into the equipment and damaging the internal mechanical structure.

[0039] The overall external mechanism 1 also includes several integral collection troughs 107 opened on the top outer wall of the overall chassis 101. Several integral small holes 108 are opened on the inner wall of the integral collection troughs 107. An integral baffle 109 is fixedly connected to the outer wall of the overall chassis 101. The integral baffle 109 is made of concrete. The inclined angle can effectively prevent animal excrement from entering the equipment and corroding the metal equipment, thus extending the service life of the product.

[0040] Example 2, please refer to Figure 4 - Figure 8 This invention relates to a prestressed steel-concrete composite pipe pile. Based on Example 1, the collecting obstruction mechanism 2 further includes a collecting filter 204 fixedly connected to the inner wall of the collecting trough 203. A collecting center hole 205 is provided on the top outer wall of the collecting top plate 202. A collecting fixing body 206 is fixedly connected to the top outer wall of the collecting center hole 205. A collecting small body 207 is fixedly connected to the top outer wall of the collecting top plate 202. A collecting large plate 208 is fixedly connected to the end of the collecting small body 207 away from the collecting top plate 202. A collecting baffle 209 is fixedly connected to the top outer wall of the collecting large plate 208. Several collecting small columns 210 are fixedly connected to the side wall of the collecting large plate 208. The ends of the several collecting small columns 210 away from the collecting top plate 202 are fixedly connected to the outer wall of the overall chassis 101. This mechanism utilizes the fact that when air enters the internal contraction part from the expansion part of the collecting large plate 208, the air speed increases due to the reduced cross-sectional area of ​​the contraction part, achieving a gradual cooling effect.

[0041] The bottom fixing mechanism 3 also includes a fixed main column 304 fixedly connected to the outer wall of the bottom of the fixed collection plate 303. A fixed rotating column 305 is rotatably connected to the inner wall of the fixed main column 304. The side wall of the fixed rotating column 305 is rotatably connected to the inner wall of the integral side groove 102. Several fixed side grooves 306 are opened on the side wall of the fixed main column 304. When the foundation of the present invention is being fixed, the bottom fixing mechanism 3 extends outward due to the resistance of the soil, and the fixed main column 304 stores a portion of the fine and dry soil on the ground surface. After going deeper, it mixes with the more moist soil underground, making the equipment more stable.

[0042] The bottom fixing mechanism 3 also includes a fixed water inlet 307 opened on the inner wall of the fixed side groove 306, several fixed small openings 308 opened on the outer wall of the fixed main column 304, several fixed side teeth 309 fixedly connected to the front end of the outer wall of the fixed main column 304, a fixed inclined groove 310 opened at the end of the fixed main column 304 away from the fixed collection plate 303, and several fixed square grooves 311 opened at the bottom of the outer wall of the fixed main column 304. Using the above method, the water source formed enters the fixed main column 304 through the fixed side pipe 312. By wetting the soil, the water source carries some mud and sand to fill the gaps and approach the soil surface. When the weather rains, the soil absorbs the water source and becomes soft, filling the gaps between the soil and the fixed main column 304 caused by vibration. This can effectively prevent the gap between the fixed small column 301 and the soil surface from becoming larger during vibration. In this process of continuous drought and wet repair, a layer of "oxygen-free film" is formed on the outside of the fixed main column 304 to achieve the effect of isolating air and avoiding metal corrosion.

[0043] The bottom fixing mechanism 3 also includes a fixing side tube 312 rotatably connected to the inner wall of several fixing side grooves 306. Several fixing small holes 313 are opened on the outer wall of the fixing side tube 312. A fixing rotating plate 314 is rotatably connected to the inner wall of several fixing square grooves 311. The "oxygen-insulating membrane" can absorb and dissipate a lot of heat during the day. At night, it can gradually cool down the entire equipment and avoid condensation on the internal metal and copper products due to large temperature changes, which would affect the service life of the product.

[0044] The method for fixing prestressed steel-concrete composite pipe piles includes the following steps:

[0045] S1: Place the prestressed steel pipe concrete pile in the required position and use a hammer to insert the equipment into the soil so that the bottom fixing mechanism 3 is completely submerged in the soil.

[0046] S2: The overall condensation plate 104 actively absorbs temperature changes around the device, and the collection plate 208 is tilted upwards, which obstructs air from passing through the bottom and causes the condensed water to flow to a specific area.

[0047] S3: During the pounding process, the soil is scooped into the interior of the fixed main column 304 by the fixed inclined groove 310, and the dew is collected and dispersed to the perimeter of the fixed main column 304 through the fixed side pipe 312.

[0048] A specific application of this embodiment is as follows: During operation, the device is placed in the desired location and, through hammering, inserted into the soil, ensuring the bottom fixing mechanism 3 is completely submerged. Utilizing the characteristics of the surface soil (dry, fine, and with poor shock resistance) and the underlying soil (wet, loose, and with poor stability), during the foundation fixing process, the bottom fixing mechanism 3 extends outwards due to soil resistance, and the fixing column 304 stores a portion of the fine, dry surface soil. After further penetration, this soil mixes with the wetter underground soil, making the device more stable. This also takes advantage of the large diurnal temperature range in suburban areas, where the outer wall of the overall stone slab 105 has poor thermal conductivity and a lower temperature in the early morning, allowing the overall condensation plate 104 to... Metal products have high thermal conductivity. A metal condensation plate 104 is installed on the outer wall of the equipment. It can actively absorb temperature changes around the device and allow the condensed water to flow to a specific area. The water source enters the fixed main column 304 through the fixed side pipe 312. By wetting the soil, the water source carries some mud and sand to fill the gaps. Through the continuous process of drought and wetness repair, a "barrier film" is formed on the outside of the fixed main column 304 to isolate the air and prevent metal corrosion. It also prevents water from seeping into the equipment and damaging the internal mechanical structure. When air enters the internal contraction section from the expansion section of the collection plate 208, the air velocity increases due to the reduced cross-sectional area of ​​the contraction section, achieving a cooling effect.

[0049] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A prestressed steel-concrete composite pipe pile, comprising an integral external mechanism (1), wherein the integral external mechanism (1) further comprises an integral chassis (101), wherein a plurality of integral side grooves (102) are provided on the top outer wall of the integral chassis (101), and a plurality of integral side columns (103) are fixedly connected to the central axis of the top outer wall of the integral chassis (101), characterized in that, Also includes: The collection obstruction mechanism (2) includes a collection bottom ring (201) fixedly connected to the top outer wall of several integral side columns (103), and a collection top plate (202) fixedly connected to the central axis of the top outer wall of the collection bottom ring (201). Several collection slots (203) are opened on the top outer wall of the collection top plate (202). Bottom fixing mechanism (3), the bottom fixing mechanism (3) includes a number of fixing columns (301) fixedly connected to the central axis of the top outer wall of the overall chassis (101), a number of fixing small side grooves (302) are opened on the side wall of the number of fixing columns (301), and a fixing collection plate (303) is fixedly connected to the inner wall of the number of overall side columns (103). The overall external mechanism (1) also includes several overall condensation plates (104) fixedly connected to the top outer wall of the overall side groove (102), several overall stone slabs (105) fixedly connected to the side walls of the several overall condensation plates (104), and an overall center hole (106) is opened at the central axis of the top outer wall of the overall chassis (101). The overall external mechanism (1) also includes several overall collection slots (107) opened on the top outer wall of the overall chassis (101), several overall small holes (108) are opened on the inner wall of the several overall collection slots (107), and an overall baffle (109) is fixedly connected to the outer wall of the overall chassis (101). The collection obstruction mechanism (2) further includes a collection filter (204) fixedly connected to the inner wall of the collection trough (203). A collection center hole (205) is provided on the top outer wall of the collection top plate (202). A collection fixing body (206) is fixedly connected to the top outer wall of the collection center hole (205). A collection small body (207) is fixedly connected to the top outer wall of the collection top plate (202). A collection large plate (208) is fixedly connected to the end of the collection small body (207) away from the collection top plate (202). A collection baffle (209) is fixedly connected to the top outer wall of the collection large plate (208). A number of collection small columns (210) are fixedly connected to the side wall of the collection large plate (208). The ends of the collection small columns (210) away from the collection top plate (202) are fixedly connected to the outer wall of the overall chassis (101).

2. The prestressed steel-concrete composite pipe pile according to claim 1, characterized in that: The bottom fixing mechanism (3) further includes a fixed main column (304) fixedly connected to the bottom outer wall of the fixed collection plate (303). A fixed rotating column (305) is rotatably connected to the inner wall of the fixed main column (304). The side wall of the fixed rotating column (305) is rotatably connected to the inner wall of the integral side groove (102). Several fixed side grooves (306) are opened on the side wall of the fixed main column (304).

3. A prestressed steel-concrete composite pipe pile according to claim 2, characterized in that: The bottom fixing mechanism (3) also includes a fixed water inlet (307) opened on the inner wall of the fixed side groove (306), a number of fixed small openings (308) opened on the outer wall of the fixed main column (304), a number of fixed side teeth (309) fixedly connected to the front end of the outer wall of the fixed main column (304), a fixed inclined groove (310) opened at the end of the fixed main column (304) away from the fixed collection plate (303), and a number of fixed square grooves (311) opened at the bottom of the outer wall of the fixed main column (304).

4. A prestressed steel-concrete composite pipe pile according to claim 3, characterized in that: The bottom fixing mechanism (3) further includes a fixing side tube (312) rotatably connected to the inner wall of several fixing side grooves (306). Several fixing small holes (313) are opened on the outer wall of the fixing side tube (312), and a fixing rotating plate (314) is rotatably connected to the inner wall of several fixing square grooves (311).

5. A method of using a prestressed steel-concrete composite pipe pile, as described in claim 4, characterized in that... Includes the following steps: S1: Place the prestressed steel pipe concrete pile in the required position and hammer it to insert the equipment into the soil so that the bottom fixing mechanism (3) is completely submerged in the soil. S2: The overall condensation plate (104) actively absorbs the temperature changes around the device, and the collection plate (208) is in the form of an upward tilt, which obstructs the air from passing through the bottom and causes the condensed water to flow to a specific area. S3: During the pounding process, the soil is shoveled by the fixed inclined groove (310) and enters the interior of the fixed main column (304). The dew is collected by the fixed side pipe (312) and dispersed to the periphery of the fixed main column (304).

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