A weighing and monitoring system for pile foundation construction fill material
By using a weighing monitoring system in pile foundation construction, the weight of the fill material in the concrete hopper is monitored in real time and transmitted to the main control unit, which solves the problem of inaccurate monitoring of crushed stone filling in the existing technology and ensures the quality of the pile and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN DIGITAL ENG TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
Existing technologies cannot accurately monitor the amount of crushed stone filled during pile foundation construction, resulting in low data accuracy and authenticity.
A pile foundation construction fill material weighing and monitoring system was designed, including a pile driver mast, pile pipe, fixing frame and concrete hopper. The system uses a weighing device to weigh the fill material in the concrete hopper in real time and transmits the data to the main control unit in the cab via wireless communication, so as to realize the accurate measurement of the amount of crushed stone filling.
Without altering the construction process, accurate monitoring of the amount of crushed stone filling was achieved, allowing for timely detection of potential quality issues, ensuring the compactness and bearing capacity of the piles, and improving construction quality.
Smart Images
Figure CN224451643U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of driven stone pile machine, and in particular relates to a weighing and monitoring system for pile foundation construction fill material. Background Technology
[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.
[0003] Crushed stone pile driving is a commonly used foundation treatment technology. It involves creating holes in soft soil using vibration or hammering, then pressing sand, crushed stone, or a mixture of sand and gravel through the pile casing into the holes to form a dense pile casing. This improves the bearing capacity of the foundation, reduces settlement, enhances resistance to liquefaction, and improves soil stability. Filling the pile with crushed stone is a crucial construction step, and the amount of crushed stone used is an important monitoring parameter during construction.
[0004] Currently, there are two main methods for monitoring the amount of crushed stone used during construction:
[0005] The weight of the crushed stone stockpile during the material preparation stage before construction is directly measured using a static weighing device.
[0006] The weight of crushed stone is monitored in real time during the transportation process using dynamic weighing devices or sensors.
[0007] The construction step of filling the pile pipe with crushed stone is a hidden operation, making it difficult to visualize and monitor in real time. The two existing monitoring methods mentioned above deviate from the actual amount of crushed stone filling during the actual construction process, resulting in low accuracy and authenticity of the data. Summary of the Invention
[0008] The purpose of this invention is to provide a weighing and monitoring system for pile foundation construction fill material to solve the technical problem that the fill material quantity cannot be accurately measured at any time in the existing technology.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] This utility model provides a weighing and monitoring system for pile foundation construction fill, including:
[0011] The system includes a pile driver mast, a pile pipe, a fixing frame, and a concrete hopper. A power hammer is fixed to the top of the pile pipe, and a first sliding wheel is provided on one side of the power hammer. A track is provided on the side of the pile driver mast opposite to the pile pipe, and the track cooperates with the first sliding wheel.
[0012] A crossbeam is installed at the top of the pile driver mast, and a first pulley block is installed on the crossbeam. The power end of the first pulley block is connected to a first winch, and its resistance end is connected to a weighing device. The weighing device has a hook, which is connected to the fixed frame. The concrete hopper is fixed on the fixed frame. A second sliding wheel is installed on one side of the fixed frame and is assembled and connected to the rail on the pile driver mast. The fixed frame has space to accommodate the pile pipe and allow it to pass through.
[0013] The weighing device is used to weigh the filler material in the concrete hopper; the pile pipe is provided with a feed inlet.
[0014] In one embodiment, a second pulley block is also provided on the crossbeam, with the power end of the second pulley block connected to a second winch and the resistance end connected to a power hammer.
[0015] In one implementation, the first winch is connected to the weighing device via a rope passing through a first pulley block; the second winch is connected to the power hammer via a rope passing through a second pulley block.
[0016] As one implementation method, a side door that can be controlled to open and close is provided on one side of the concrete hopper.
[0017] In one implementation, the side door corresponds to the feeding port of the pile pipe.
[0018] In one embodiment, the pile pipe is hollow inside, providing space to accommodate the filling material.
[0019] As one implementation method, a fixed base is provided at the bottom of the pile driver mast.
[0020] In one implementation, the weighing device has a built-in microprocessor, which communicates with the instrument via OCS wireless data transmission communication.
[0021] In one implementation, the instrument transmits data to the main control unit of the construction guidance system via an RS485 interface.
[0022] In one implementation, the main control unit of both the instrument and the construction guidance system is located in the driver's cab.
[0023] The technical solution of this utility model has the following beneficial effects:
[0024] This utility model, without changing the construction operation process or affecting the original operation time, achieves the effect of accurately obtaining the amount of crushed stone filled during the construction process by weighing and accumulating the weight of the filler material in each concrete hopper. It can promptly detect potential quality hazards of pile pipes due to insufficient crushed stone, provide a basis for improving the construction quality of concealed construction technology, and ensure the compactness and bearing capacity of the formed pile pipes.
[0025] Advantages of the present invention in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0026] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0027] Figure 1 This is a schematic diagram of the overall structure of a pile foundation construction fill material weighing and monitoring system according to the present invention.
[0028] Among them, 1. weighing device, 2. concrete hopper, 3. feed inlet, 4. filler, 5. rope, 6. power hammer, 7. pile pipe, 8. fixed frame, 9. track, 10. first pulley block, 11. second pulley block, 12. first winch, 13. second winch. Detailed Implementation
[0029] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0030] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this utility model.
[0031] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0032] This utility model discloses a mechanical weighing system for four types of filler; such as Figure 1 As shown, the system includes: a pile driver mast, a pile pipe 7, a fixed frame 8, and a concrete hopper 2. A power hammer 6 is fixed to the top of the pile pipe 7, and a first sliding wheel is provided on one side of the power hammer 6. A track 9 is provided on the side of the pile driver mast opposite to the pile pipe 7, and the track 9 cooperates with the first sliding wheel. A crossbeam is provided at the top of the pile driver mast, and a first pulley block 10 is provided. The power end of the first pulley block 10 is connected to a first winch 12, and its resistance end is connected to a weighing device 1. The first winch 12 acts as a power source and cooperates with the first pulley block 10 to realize the upward or downward movement of the weighing device 1. The weighing device 1 has a hook that is connected to the fixed frame 8. The concrete hopper 2 is fixed on the fixed frame 8, and the weighing device is used to weigh the weight of the filling material 4 in the concrete hopper 2. A second sliding wheel is provided on one side of the fixed frame 8 and is assembled and connected to the track 9 on the pile driver mast. The fixed frame 8 has a space that can accommodate the pile pipe 7 and allow it to pass through. A feed inlet 3 is provided on the pile pipe 7.
[0033] In a specific implementation, a second pulley block 11 is also provided on the crossbeam. The power end of the second pulley block 11 is connected to a second winch 13, and its resistance end is connected to a power hammer 6. The second winch 13, as a power source, works with the second pulley block 11 to realize the upward or downward movement of the pile pipe 7.
[0034] In a specific implementation, a fixed base is provided at the bottom of the pile driver mast. A track 9 is laid from bottom to top on the side wall of the pile driver mast. One side of the fixed frame 8 is used to fix the concrete hopper 2, and a second pulley is provided at the other end of the frame. The second pulley is slidably installed with the mast track 9. A space for accommodating the pile pipe 7 is provided in the middle of the fixed frame 8.
[0035] In a specific implementation, the first winch 12, in conjunction with the first pulley block 10 on the crossbeam, pulls the rope 5 upward. The rope 5 pulls the electronic weighing device 1, which in turn pulls the concrete hopper 2 upward, thus achieving the weighing function. During the upward movement of the concrete hopper 2, due to the presence of the fixed frame 8, the concrete hopper 2 will rise steadily without shaking or tilting, ensuring safety during the operation and the accuracy of the filling material 4.
[0036] In a specific implementation, the upper part of the pile pipe 7 of the stone crushing pile machine is also provided with a feed inlet 3. The feed inlet 3 is used to receive the filler 4 poured out by the concrete hopper 2. The filler 4 enters the interior of the pile pipe 7 through the feed inlet 3. The interior of the pile pipe 7 is hollow and has space to accommodate the filler 4.
[0037] The concrete hopper 2 is used to hold crushed stone. A side door, which can be controlled to open and close, is located on one side of the concrete hopper 2. This side door corresponds to the feeding port of the stone crushing pile machine. When the concrete hopper 2 rises to a suitable height, a worker controls the side door to open, allowing the filler material 4 to be fed into the pile pipe 7 of the stone crushing pile machine. The concrete hopper 2 switch device of the stone crushing pile machine is a key component for controlling the feeding of crushed stone. It is generally operated by a manual lever in the cab, which is existing technology.
[0038] In a specific implementation, the weighing device 1 is an electronic hook weighing device used to weigh the crushed stone in the concrete hopper 2. The weighing device 1 includes a mechanical support structure, sensing elements, a signal processing module, a wireless transmission module, an energy system, and an instrument module. The hook directly hooks onto the concrete hopper 2 through the mechanical support structure, and the hook is connected to the internal sensing elements via a metal connecting rod. The sensing elements are mostly metal strain beams, column-type, or S-type sensors, with resistance strain gauges pasted on their surfaces, which deform under stress. The strain gauges are pasted onto the surface of the elastic element, typically four in total (two under tension and two under compression), forming a Wheatstone bridge circuit that converts minute resistance changes into measurable electrical signals. The output is connected to the signal processing module. The signal processing module consists of an operational amplifier (such as an OP amplifier), an ADC, and a microcontroller, amplifying the weak voltage signal (millivolt level) output by the Wheatstone bridge. Receiving the amplified analog voltage signal, the ADC converts the analog signal into a digital signal (such as 12-bit / 24-bit binary data), which is then connected to the microcontroller via a data line. The microcontroller transmits the weighing data to the instrument module via the wireless transmission module. The power supply module is typically a lithium battery pack, which provides the necessary power for the equipment to operate.
[0039] The weighing device 1 works by converting mechanical signals into electrical signals to measure weight. When a concrete hopper 2 containing crushed stone is hung on the hook of the weighing device 1, the weight is transmitted through the hook to the elastic sensitive element (such as a metal strain beam or column sensor) inside the weighing device 1. The elastic element undergoes a slight deformation under stress, the degree of which is proportional to the weight of the object. A resistance strain gauge is attached to the surface of the elastic element; its resistance changes with the deformation of the elastic element. When the strain gauge is compressed, it stretches or compresses, causing the resistance to increase or decrease. This change in resistance is converted into a weak voltage signal by a Wheatstone bridge circuit. This weak voltage signal is amplified by an operational amplifier and then converted into a digital signal by an analog-to-digital converter (ADC) for processing by a microprocessor. The digital signal is transmitted to the microprocessor (MCU), which calculates the cumulative weight value using an algorithm. An instrument is installed in the crane cab; the microprocessor communicates with the instrument via OCS wireless data transmission, transmitting the measured weight value to the instrument.
[0040] In a specific implementation, the instrument of the weighing device 1 is installed in the cab, and it communicates with the weighing device 1 wirelessly via OCS data transmission; it is used to receive the weight data of the filling material 4 detected by the electronic weighing device 1. The main control unit of the stone pile driver construction guidance system is installed in the cab to monitor the operation of the stone pile driver. After the main control unit operates "start pile driving", it begins to monitor the construction data of the stone pile driver; the instrument transmits data with the main control unit through an RS485 interface. It should be noted that the instrument recording device and the main control unit of the construction guidance system are not existing technologies, and will not be described in detail here.
[0041] In a specific implementation, an excavator typically feeds crushed stone into the concrete hopper 2 via its bucket. This design suspends a weighing device 1 above the concrete hopper 2 of the crushed stone pile equipment to weigh and accumulate the concrete hopper 2 in real time. The data is transmitted to a data receiver via OCS wireless data transmission, allowing the calculation of the weight of the crushed stone entering the pile pipe 7 through the concrete hopper 2.
[0042] Working principle of this utility model:
[0043] After the stone crushing pile machine sinks the pile pipe 7 into the ground to a certain depth, the concrete hopper 2 will put crushed stone into the feed inlet 3 as needed. The crushed stone then enters the sinking position deep in the foundation through the pile pipe 7 to form a stone crushing pile.
[0044] The empty concrete hopper 2 is then tare off by the "tare" operation of the instrument recording device of the weighing device 1 to remove the weight of the concrete hopper 2 and other non-target items, ensuring that the electronic hook of the weighing device 1 only records the weight of the crushed stone loaded into the concrete hopper 2.
[0045] After the staff clicks the "Start Piling" operation on the construction guidance system, it will send commands to the instrument recording device of the electronic weighing device 1 at the set frequency to obtain the real-time weight.
[0046] The concrete hopper 2 moves up and down using a dedicated first winch 12 and a first pulley block 10 fixed to the top of the pile driver to lower the rope 5. As the rope 5 is lowered, the concrete hopper 2 moves downward until it touches the ground. The excavator bucket then feeds the filler 4 into the concrete hopper 2. The rope 5 is pulled up to completely lift the concrete hopper 2 off the ground. At this point, the electronic weighing device 1 detects the actual weight of the filler 4 and transmits this weight data to the instruments in the control room for display. The concrete hopper 2 continues to move upward until it reaches the loading port. The operator then controls and opens the side door of the concrete hopper 2. The filler 4 in the concrete hopper 2 slides into the interior of the stone pile driver due to gravity. The rope 5 is lowered until the concrete hopper 2 touches the ground, and the above steps are repeated.
[0047] Since the crushed stone filled into the concrete hopper 2 all enters the pile pipe 7 directly through the feed inlet 3 to form a crushed stone pile body, it can be assumed that the amount of crushed stone filled into the concrete hopper 2 during construction is the amount of crushed stone used to form this crushed stone pile body. The actual amount of crushed stone poured in is obtained by cumulatively weighing the N fillers 4 poured into the concrete hopper 2 during construction.
[0048] When the excavator bucket fills the concrete hopper 2 with crushed stone, when the specified rated weight is reached, the weight is accumulated and recorded in the crushed stone filling data through the "print" function of the instrument recording device; after the construction guidance system clicks the "end pile driving" operation, the accumulated crushed stone volume during the construction of this pile is recorded and sent back to the server.
[0049] This invention aims to obtain the actual amount of crushed stone poured during the construction of crushed stone piles, ensuring the authenticity and reliability of the data. Based on real-time data on the amount of crushed stone used during construction, potential quality problems in the pile body that may arise due to insufficient crushed stone usage can be identified in a timely manner. These problems include insufficient pile density caused by insufficient crushed stone or uneven pile body caused by excessive use. This provides a basis for quality improvement, ensuring the compactness and bearing capacity of the formed pile body.
[0050] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A pile construction filler weighing monitoring system, characterized by, The system includes a pile driver mast, a pile pipe, a fixing frame, and a concrete hopper. A power hammer is fixed to the top of the pile pipe, and a first sliding wheel is provided on one side of the power hammer. A track is provided on the side of the pile driver mast opposite to the pile pipe, and the track cooperates with the first sliding wheel. A crossbeam is installed at the top of the pile driver mast, and a first pulley block is installed on the crossbeam. The power end of the first pulley block is connected to a first winch, and its resistance end is connected to a weighing device. The weighing device has a hook, which is connected to the fixed frame. The concrete hopper is fixed on the fixed frame. A second sliding wheel is installed on one side of the fixed frame and is assembled and connected to the rail on the pile driver mast. The fixed frame has space to accommodate the pile pipe and allow it to pass through. The weighing device is used to weigh the filler material in the concrete hopper; the pile pipe is provided with a feed inlet.
2. A pile construction filler weighing monitoring system according to claim 1, wherein, A second pulley block is also installed on the crossbeam. The power end of the second pulley block is connected to the second winch, and its resistance end is connected to the power hammer.
3. A pile construction filler weighing monitoring system as claimed in claim 2, characterised in that, The first winch is connected to the weighing device via a rope passing through the first pulley block; the second winch is connected to the power hammer via a rope passing through the second pulley block.
4. A pile construction filler weighing monitoring system according to claim 1, wherein A side door with controllable opening and closing is installed on one side of the concrete hopper.
5. A pile construction filler weighing monitoring system as claimed in claim 4, characterised in that, The side door corresponds to the feeding port of the pile pipe.
6. A pile construction filler weighing monitoring system according to claim 1, wherein, The pile pipe is hollow inside, providing space to accommodate the filling material.
7. A pile construction filler weighing monitoring system according to claim 1, wherein The base of the pile driver mast is equipped with a fixed seat.
8. A pile construction filler weighing monitoring system as claimed in claim 1, characterized in that, The weighing device has a built-in microprocessor, which communicates with the instrument via OCS wireless data transmission communication.
9. A pile construction filler weighing monitoring system as claimed in claim 8, characterised in that, The instrument transmits data to the main control unit of the construction guidance system via an RS485 interface.
10. A pile construction filler weighing monitoring system as claimed in claim 9, wherein, The main control unit for both the instrument panel and the construction guidance system is located in the driver's cab.