Walking type foundation plate load test platform car

Abstract

The utility model relates to the technical field of foundation detection, in particular to a walking type foundation flat plate load test platform car, which comprises a power system, a bearing system, a walking type walking system and a static load loading system, the power system is connected with and drives the walking type walking system, the bearing system is driven by the walking type walking system to move, and the static load loading system is arranged below the bearing system. The utility model has the advantages that the platform car is driven by electric power and is provided with power by the hydraulic component, so that the walking system drives the platform car to quickly transition, the detection efficiency is improved, the construction period is saved, and the cost is reduced; the safety of engineering detection operation is ensured, and the platform does not need to be disassembled and a balancing weight does not need to be hoisted again after the balancing weight is hoisted once through the bearing system and the walking system; and the vehicle can smoothly pass through various bad roads and is slightly influenced by weather.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation detection, in particular to a walking type foundation flat plate load test platform vehicle. Background Art

[0002] With the continuous development of the construction industry, in order to ensure the quality of construction projects, the bearing capacity of the foundation must be tested. Among them, the plate load test is the earliest and most widely used in-situ test method, which is recognized as the most accurate and reliable test result. By placing a rigid pressure plate of a certain size on the foundation of the intended test site, applying loads to the pressure plate step by step, and measuring the change of the settlement of the pressure plate with the load, the bearing capacity and deformation parameters of the foundation can be determined. The plate load test must be provided with sufficient reaction force by the reaction force system, and the reaction force system generally has the stacking method and the anchor method, or the two are used in combination. At present, the more commonly used method is the stacking method, and the stacking material is mainly concrete or sandbags. This method is mainly hoisted by large-scale machinery such as cranes. However, this experimental method has many inconveniences when it needs to be transferred, including the need to repeatedly install and disassemble the load-bearing platform for detection, the need to repeatedly hoist the counterweight block, and the long test preparation time, resulting in low efficiency, certain safety hazards, and increased costs. How to optimize the traditional load reaction system to achieve rapid transfer without repeated lifting and reduce experimental preparation time is a research direction of plate load testing.

[0003] In response to the above problems, relevant experts and engineers have begun to study walking static load test platforms, striving to achieve rapid movement and avoid repeated loading and unloading, etc. However, this device is only for the bearing capacity detection of pile foundation projects. In actual projects, due to the bearing capacity of the foundation, especially the bearing capacity detection of the composite foundation, the load plate area is required to be larger and the distance between the support points of the load platform should meet the requirements of the specification. The net distance between the pressure plate and the weight platform pier is not less than max (pressure plate width or diameter b, pier width B, 2m). This requires that the spacing of the load platform piers far exceeds the spacing requirements for pile foundation detection.

[0004] How to improve the efficiency of setting up the load reaction platform for testing the bearing capacity of the foundation, reduce the transfer time, avoid repeated lifting, and at the same time be suitable for the bearing capacity testing needs of large-area foundations or composite foundations. This requires the development of a new type of walking foundation flat plate load test platform vehicle to solve related problems. Summary of the invention

[0005] The purpose of the utility model is to provide a walking-type foundation plate load test platform vehicle based on the above-mentioned deficiencies of the prior art, which drives the platform vehicle to move in the site through a walking-type walking system and cooperates with the structural design to ensure the smooth implementation of the foundation plate load test.

[0006] The purpose of this utility model is achieved by the following technical solutions:

[0007] A walking-type foundation flat plate load test platform vehicle, characterized in that it includes a power system, a bearing system, a walking system and a static load loading system, wherein the walking system is arranged below the bearing system, the power system is connected to drive the walking system, the bearing system moves driven by the walking system, and the static load loading system is arranged below the bearing system.

[0008] The bearing system includes a fuselage load-bearing platform and a hydraulic telescopic mechanism, wherein a long boat and a short boat are respectively arranged at the bottom of the fuselage load-bearing platform, wherein the long boat and the short boat are respectively connected to the hydraulic telescopic mechanism, and both are raised and lowered under the drive of their own hydraulic telescopic mechanisms.

[0009] A pressure plate is provided at the bottom of the fuselage load-bearing platform, and the pressure plate is connected to the fuselage load-bearing platform through an electric hoist. The pressure plate is raised and lowered under the drive of the electric hoist.

[0010] A central pressure rod, a hydraulic cylinder and a pressure sensor are provided at the bottom of the fuselage load-bearing platform. The central pressure rod corresponds to the position of the pressure plate. The pressure sensor is installed at the end of the central pressure rod. The central pressure rod is raised and lowered under the drive of the hydraulic cylinder and causes the pressure sensor to contact the pressure plate.

[0011] The long boat is connected to a hydraulic cylinder via a sliding seat, and the sliding seat is arranged in the hull and is slidably connected to the guide rail.

[0012] The advantages of the utility model are:

[0013] 1) It solves the problem of low efficiency and high lifting cost caused by the traditional stacking method, which requires repeated lifting of counterweights and the construction of stacking platforms. Through electric drive and hydraulic components to provide power, the walking system drives the platform vehicle to quickly transfer, which improves the inspection efficiency. Compared with the traditional stacking platform construction, it can be increased by more than 2 times, saving construction time and reducing costs.

[0014] 2) It solves the potential safety hazard caused by the traditional stacking method which requires repeated lifting, ensures the safety of engineering inspection operations, and achieves the goal of lifting the counterweight only once through the load-bearing system and the walking system, without the need to dismantle the platform and lift the counterweight again.

[0015] 3) The traditional loading method requires cranes and trucks to transport components and counterweights, which has high requirements on the bearing capacity of the site roads. Rainy weather affects the transportation capacity and makes the test impossible. The ground pressure on the site is small, and the roads that are difficult for cranes and trucks to pass can also be passed smoothly by this platform vehicle due to its small ground pressure on the site ground, and it is less affected by the weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 It is a top view of the utility model. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0020] like Figure 1-3 As shown in the figure, marks 1-15 respectively represent: fuselage load-bearing platform 1, counterweight block 2, central pressure rod 3, pressure sensor 4, pressure plate 5, electric hoist 6, hydraulic telescopic mechanism 7, long boat 8, hydraulic telescopic mechanism 9, short boat 10, slide 11, hydraulic cylinder 12, hydraulic cylinder 13, guide rail 14, power system 15.

[0021] Example: Figures 1 to 3 As shown, the walking-type foundation flat plate load test platform vehicle in this embodiment includes the following usage method:

[0022] 1) Survey the site on site, understand the site conditions, measure and place points, dig a test pit, set up a walking foundation flat plate load test platform vehicle, and place the counterweight block 2 on the fuselage load-bearing platform 1.

[0023] 2) The walking-type ground-based plate load test platform vehicle is controlled to move quickly to the testing position through the lateral walking mechanism and the longitudinal walking mechanism.

[0024] Specifically, the fuselage load-bearing platform 1 is moved longitudinally through the power system 15, and the short boat 10 is controlled by the hydraulic telescopic mechanism 9 to contact the ground to support the fuselage load-bearing platform. The long boat 8 is controlled by the hydraulic telescopic mechanism 7 to lift off the ground, and then the slide 11 is driven by the hydraulic cylinder 12 to drive the long boat 8 to move longitudinally. When the maximum adjustable range of the long boat 8 is reached, the long boat 8 is controlled by the hydraulic telescopic mechanism 7 to fall to the ground until it can fully support the fuselage load-bearing platform 1, and then the hydraulic telescopic mechanism 9 controls the short boat 10 to rise in the air, and the hydraulic cylinder 12 is started to drive the slide 11 to slide in the long boat 10 along the guide rail 14, so that the fuselage load-bearing platform 1 moves longitudinally, thus completing a complete longitudinal movement. The above operations are then repeated until the fuselage load-bearing platform 1 reaches the detection point.

[0025] 3) After the walking foundation plate load test platform vehicle is in place, the pressure plate 5 is placed downward by controlling the electric hoist sling 6 so that the pressure plate 5 coincides with the center of the detection point, and then the central pressure rod 3 is adjusted downward by the hydraulic cylinder 13 to drive the pressure sensor 4 to contact the pressure plate 5, and then other static load test equipment is installed, and the test is started by step-by-step pressurization.

[0026] 4) After completing the first inspection point, there is no need to dismantle the equipment and hoist the weight; by controlling the walking system, the walking foundation plate load test platform vehicle continues to move to the next inspection point for inspection.

[0027] The platform vehicle in this embodiment is used for application test. The proposed site is located on the east side of Yulong Island Binhai Road in Huangshanguan Town, Longkou City, Shandong Province, and on the west side of National Highway G206. In the triangle land on the north side of Jiehe River, at the location of the former Nanshan General Airport, according to the geological conditions of the site and the actual situation on site, the design adopts a high-energy level dynamic compaction foundation pretreatment method. The dynamic compaction treatment requires that the characteristic value of the bearing capacity of the treated foundation fak ≥ 250kPa. After the dynamic compaction construction is completed, the dynamic compaction effect is tested, and the test of the dynamic compaction site is carried out 14-28 days after the completion of the dynamic compaction. The load plate area of ​​the tank foundation area is 4m 2 The use of the platform vehicle in this embodiment to perform the foundation plate load test has a good effect and greatly shortens the construction period, reduces safety hazards, and saves about 1 / 2 of the construction period and 3 / 4 of the cost compared to the traditional heap loading method.

[0028] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A walking type foundation flat plate load test platform vehicle, characterized in that: It includes a power system, a bearing system, a walking system and a static load system, wherein the walking system is arranged below the bearing system, the power system is connected to drive the walking system, the bearing system moves driven by the walking system, and the static load system is arranged below the bearing system.

2. A walking type foundation flat plate load test platform vehicle according to claim 1, characterized in that: The bearing system includes a fuselage load-bearing platform and a hydraulic telescopic mechanism, wherein a long boat and a short boat are respectively arranged at the bottom of the fuselage load-bearing platform, wherein the long boat and the short boat are respectively connected to the hydraulic telescopic mechanism, and both are raised and lowered under the drive of their own hydraulic telescopic mechanisms.

3. A walking type foundation plate load test platform vehicle according to claim 2, characterized in that: A pressure plate is provided at the bottom of the fuselage load-bearing platform, and the pressure plate is connected to the fuselage load-bearing platform through an electric hoist. The pressure plate is raised and lowered under the drive of the electric hoist.

4. The walking type foundation plate load test platform vehicle according to claim 3, characterized in that: A central pressure rod, a hydraulic cylinder and a pressure sensor are provided at the bottom of the fuselage load-bearing platform. The central pressure rod corresponds to the position of the pressure plate. The pressure sensor is installed at the end of the central pressure rod. The central pressure rod is raised and lowered under the drive of the hydraulic cylinder and causes the pressure sensor to contact the pressure plate.

5. The walking type foundation plate load test platform vehicle according to claim 2, characterized in that: The long boat is connected to a hydraulic cylinder via a sliding seat, and the sliding seat is arranged in the hull and is slidably connected to the guide rail.

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