Lattice column pile with function of melting precipitation

Abstract

A kind of lattice column pile of fusion precipitation function, including vertically arranged steel pipe pile, the bottom of steel pipe pile is equipped with concrete base, the outer periphery of steel pipe pile is provided with several circumferentially arranged water inlet holes on the upside of concrete base, the steel pipe pile at water inlet hole position is filled with filter material, water pump is also installed in steel pipe pile, water inlet pipe is installed on the water inlet of water pump, water inlet pipe is located at the upside position of filter material, drainage pipe is installed on the water outlet of water pump, and drainage pipe is stretched out from the top opening of steel pipe pile.The positive effect of the utility model is that: the utility model avoids the disadvantages that the traditional foundation pit needs to set up a separate precipitation well, eliminates the interference of well wall structure to construction machinery, significantly improves the foundation pit excavation efficiency, reduces the secondary destruction cost, solves the technical problems of mutual interference of support and precipitation system in foundation pit engineering through structural innovation and function fusion.

Description

Technical Field

[0001] This utility model relates to the field of lattice column technology, specifically a lattice column pile that integrates precipitation function. Background Technology

[0002] When carrying out foundation pit excavation, in order to provide an installation foundation for the internal supports, lattice columns are usually buried before excavation. During the process of excavating layer by layer downwards, temporary support structures are built between the lattice columns in the foundation pit. To prevent water accumulation inside the foundation pit from affecting the excavation operation, drainage wells are usually built inside the excavation area to achieve the corresponding dewatering purpose. However, the drainage wells located in the foundation pit in the traditional way can affect the subsequent excavation construction inside the foundation pit. It is necessary to remove the well walls before using excavators and other equipment for earthwork excavation, which to some extent affects the construction efficiency of the foundation pit. Utility Model Content

[0003] The purpose of this utility model is to provide a grid column pile that integrates the function of dewatering. By integrating the dewatering function into the grid column, it can serve as both a grid column and a dewatering well, without affecting the subsequent construction in the foundation pit, thus solving the problems in the existing technology.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a grid-structured column pile integrating precipitation function, comprising a vertically arranged steel pipe pile, a concrete base at the bottom of the steel pipe pile, and several circumferentially arranged water inlet holes on the outer periphery of the steel pipe pile above the concrete base. The steel pipe pile at the water inlet hole position is filled with filter material. A water pump is also installed inside the steel pipe pile, with an inlet pipe installed on the inlet of the water pump, located above the filter material. A drain pipe is installed on the outlet of the water pump, extending from the top opening of the steel pipe pile. A calibration ring plate is installed at the top of the steel pipe pile, with several circumferentially arranged screw holes on the calibration ring plate. Each screw hole is fitted with an adjusting screw, a rotating handle is installed at the top of the adjusting screw, and a support base is installed at the bottom of the adjusting screw. The steel pipe pile has a matching platform plate installed inside, and the water pump is located on the platform plate. The platform plate has protrusions on both sides, and the inner wall of the steel pipe pile has grooves that mate with the protrusions. An openable and closable inspection door is also installed on the steel pipe pile. A fixed pulley is installed on the inner wall of the steel pipe pile above the inspection door, and a pull rope is fitted onto the fixed pulley. One end of the pull rope is fixed to the platform plate, and the other end passes around the fixed pulley and is fixed to the inspection door. A reinforcing cage is installed inside the concrete base, and reinforcing bars are provided on the outer periphery of the bottom of the steel pipe pile, located inside the concrete base. An inclined concrete shielding plate is provided on the inner periphery of the steel pipe pile above the water inlet hole. A through hole is opened on the inner periphery of the concrete shielding plate, through which the water inlet pipe passes downwards.

[0005] The positive effects of this utility model are as follows: The grid-structured column pile integrating dewatering function described in this utility model includes a steel pipe pile and a concrete base at the bottom. A water pump is installed inside the steel pipe pile, and a water inlet hole is opened at the bottom of the steel pipe pile and filled with filter material to achieve the corresponding dewatering function. The function of the dewatering well is deeply integrated with the grid-structured column, which can serve as both a load-bearing column for foundation pit support and a groundwater extraction function. This avoids the drawbacks of traditional foundation pits requiring separate dewatering wells, eliminates the interference of the well wall structure on construction machinery, significantly improves foundation pit excavation efficiency, and reduces secondary demolition costs. Through structural innovation and functional integration, it solves the technical problem of mutual interference between support and dewatering systems in foundation pit engineering. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the state of this utility model during calibration and installation; Figure 3 This is a schematic diagram of a structure with a platform plate installed inside a steel pipe pile; Figure 4 yes Figure 3 Sectional view along line AA; Figure 5 yes Figure 1 A magnified view of part of I; Figure 6 yes Figure 1 A magnified view of part II. Detailed Implementation

[0007] The grid-structured column pile that integrates precipitation function described in this utility model, such as Figure 1 As shown, it includes a vertically arranged steel pipe pile 1, and a concrete base 2 at the bottom of the steel pipe pile 1. The concrete base 2 can improve the support strength of the overall lattice column pile. The steel pipe pile 1 is hollow inside, which makes it easy to pour concrete into the interior to form the concrete base 2.

[0008] To achieve the dewatering function of the lattice column piles, several circumferentially arranged water inlet holes 3 are opened on the outer periphery of the steel pipe pile 1 on the upper side of the concrete base 2. The water inlet holes 3 can be located 3-5 meters from the bottom of the foundation pit to ensure effective collection of groundwater at the bottom of the foundation pit. The steel pipe pile 1 at the location of the water inlet holes 3 is filled with filter material 4. The filter material 4 can effectively isolate silt and sand during the pumping process and prevent clogging. The filter material 4 should be a material with good permeability and non-clogging properties, such as quartz sand or gravel, to ensure that groundwater can smoothly enter the steel pipe pile 1. The design of the circumferentially arranged water inlet holes 3 and the filter material 4 forms a ring seepage channel, which can effectively intercept silt and impurities while ensuring efficient collection of groundwater.

[0009] A water pump 5 is installed inside the steel pipe pile 1. An inlet pipe 6 is installed on the inlet of the water pump 5, located above the filter media 4. A drain pipe 7 is installed on the outlet of the water pump 5, extending from the top opening of the steel pipe pile 1. Groundwater in the foundation pit can be collected by the inlet pipe 6 through the inlet hole 3 and the filter media 4, and discharged through the drain pipe 7 to the lattice column piles. This achieves dewatering without requiring additional dewatering wells in the foundation pit, effectively improving the subsequent excavation efficiency.

[0010] When the above-mentioned lattice column piles are pre-embedded and installed, suitable holes need to be excavated before the foundation pit is excavated. Then, a steel cage 17 is placed inside the hole, and the steel pipe pile 1 is hoisted to the upper position of the steel cage 17. After the position is calibrated, concrete is filled into the hole through the steel pipe pile 1. The concrete and the steel cage 17 form a concrete base 2. Then, filter material 4 and water pump 5 are placed inside the steel pipe pile 1. After the placement is completed, the uppermost support system of the foundation pit is constructed between the top of the lattice column piles. At the same time, holes for drainage pipes 7 are reserved. Then, the soil is excavated downwards so that the lattice column piles can achieve the support function and the corresponding dewatering function.

[0011] Furthermore, in order to adjust the relative position between the steel pipe pile 1 and the hole during installation, ensure the coaxiality of the steel pipe pile 1 and the bottom concrete base 2, and avoid problems such as skewing during concrete pouring, such as... Figure 2 As shown, a calibration ring plate 8 can be installed at the top of the steel pipe pile 1. The calibration ring plate 8 has several screw holes 9 arranged in a circle. Each screw hole 9 is fitted with an adjusting screw 10. A rotating handle 11 is installed at the top of the adjusting screw 10, and a support base 12 is installed at the bottom of the adjusting screw 10.

[0012] The support base 12 is in contact with the ground before the excavation of the foundation pit. By rotating the handle 11 at the corresponding position, the steel pipe pile 1 can be raised, lowered, and swung. The top calibration ring plate 8 and the adjustable support base 12 form a three-dimensional adjustment mechanism. By rotating the handle 11 to control the adjusting screw 10, the verticality of the steel pipe pile 1 can be finely adjusted at the millimeter level. This design not only improves the installation accuracy but also dynamically compensates for deviations during geological settlement, enhancing the overall stability of the foundation pit support system.

[0013] After the position adjustment is completed, concrete can be poured into the steel pipe pile 1. After the bottom concrete base 2 is cured, the coaxiality of the concrete base 2 and the steel pipe pile 1 will be consistent. Subsequently, the adjusting screw 10 can be removed, and the part of the steel pipe pile 1 that exceeds the ground can be used as a temporary top support for unified construction.

[0014] Furthermore, to facilitate the placement of a water pump 5 inside the steel pipe pile 1, such as... Figure 3 and Figure 4As shown, a matching platform plate 13 can be installed inside the steel pipe pile 1. The water pump 5 is located on the platform plate 13. The platform plate 13 has protrusions 14 on both sides, and a sliding groove 15 that mates with the protrusions 14 is opened on the inner wall of the steel pipe pile 1. The platform plate 13 with the water pump 5 can be hoisted to the sliding groove 15 inside the steel pipe pile 1 using a crane or other equipment. Under gravity, it descends to the bottom of the sliding groove 15, thus completing the installation. The platform plate 13 has a through hole through which the water inlet pipe 6 passes downwards.

[0015] In order to enable the retrieval of the water pump 5 inside the lattice column pile after the corresponding precipitation function is completed, an inspection door 16 that can be opened and closed can also be installed on the steel pipe pile 1. A fixed pulley 17 is installed on the inner wall of the steel pipe pile 1 above the inspection door 16. A pull rope 18 is installed on the fixed pulley 17. One end of the pull rope 18 is fixed to the platform plate 13, and the other end of the pull rope 18 passes around the fixed pulley 17 and is fixed to the inspection door 16.

[0016] After opening the maintenance door 16, staff can move the platform plate 13 upward along the slide 15 by pulling the rope 18, so that the water pump 5 can be inspected or recovered without the need for additional hoisting equipment.

[0017] Furthermore, in order to enhance the strength of the bottom concrete base 2, such as Figure 5 As shown, a reinforcing cage 17 can be installed inside the concrete base 2. To improve the connection performance between the steel pipe pile 1 and the concrete base 2, reinforcing bars 20 are provided on the outer periphery of the bottom of the steel pipe pile 1, and the reinforcing bars 20 are located inside the concrete base 2. The reinforcing cage 17 and the reinforcing bars 20 inside the concrete base 2 can form a rigid connection, making the steel pipe pile 1 and the foundation form an integral force-bearing system. This design can increase the pull-out resistance by 40%, which is particularly suitable for complex strata such as soft soil and quicksand, ensuring that the column maintains its structural integrity during dewatering.

[0018] Furthermore, in order to prevent the poured concrete from blocking the water inlet hole 3 at the bottom of the steel pipe pile 1 during the pouring of the concrete base 2, thereby affecting groundwater collection, such as... Figure 6 As shown, an inclined concrete shielding plate 19 is provided on the inner circumferential wall of the steel pipe pile 1 located above the water inlet 3. The inner circumference of the concrete shielding plate 19 is provided with a through hole, through which the water inlet pipe 6 passes downward. In conjunction with the flow guiding structure of the concrete shielding plate 19, the water inlet channel is prevented from being blocked during concrete pouring, thus ensuring the long-term stable operation of the pumping system.

[0019] The grid column pile with integrated dewatering function described in this utility model integrates dewatering function into the grid column through structural innovation and functional integration. It can serve as a load-bearing column for foundation pit support and also realize the function of groundwater extraction, which significantly improves the efficiency of foundation pit excavation, reduces construction costs, and has broad application prospects.

[0020] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.

Claims

1. A grid-structured column pile integrating precipitation function, characterized in that: The system includes vertically installed steel pipe piles (1), with a concrete base (2) at the bottom of the steel pipe piles (1). Several circumferentially arranged water inlet holes (3) are opened on the outer periphery of the steel pipe piles (1) above the concrete base (2). The steel pipe piles (1) at the positions of the water inlet holes (3) are filled with filter material (4). A water pump (5) is also installed inside the steel pipe piles (1). A water inlet pipe (6) is installed on the water inlet of the water pump (5). The water inlet pipe (6) is located on the upper side of the filter material (4). A drain pipe (7) is installed on the drain outlet of the water pump (5). The drain pipe (7) extends out from the top opening of the steel pipe piles (1).

2. The grid-structured column pile with integrated precipitation function according to claim 1, characterized in that: A calibration ring plate (8) is installed at the top of the steel pipe pile (1). Several screw holes (9) are arranged in a circle on the calibration ring plate (8). An adjusting screw (10) is installed in each screw hole (9). A rotating handle (11) is installed at the top of the adjusting screw (10), and a support seat (12) is installed at the bottom of the adjusting screw (10).

3. The grid-structured column pile with integrated precipitation function according to claim 1, characterized in that: The steel pipe pile (1) is equipped with a matching platform plate (13), and the water pump (5) is located on the platform plate (13). The platform plate (13) has protrusions (14) on both sides. The inner wall of the steel pipe pile (1) is provided with a sliding groove (15) that matches the protrusions (14). The steel pipe pile (1) is also equipped with an openable and closable inspection door (16). The inner wall of the steel pipe pile (1) above the inspection door (16) is equipped with a fixed pulley (17). A pull rope (18) is installed on the fixed pulley (17). One end of the pull rope (18) is fixed on the platform plate (13), and the other end of the pull rope (18) passes around the fixed pulley (17) and is fixed on the inspection door (16).

4. A grid-structured column pile integrating precipitation function according to claim 1, characterized in that: The concrete base (2) is equipped with a steel cage (17) inside, and the steel pipe pile (1) is equipped with reinforcing bars (20) on the outer periphery of the bottom. The reinforcing bars (20) are located inside the concrete base (2).

5. A grid-structured column pile integrating precipitation function according to claim 1, characterized in that: An inclined concrete shielding plate (19) is provided on the inner wall of the steel pipe pile (1) at the position above the water inlet (3). A through hole is opened on the inner circumference of the concrete shielding plate (19), and the water inlet pipe (6) passes through the through hole downward.

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