Unit beam type roadbed settlement test simulation device

Abstract

The utility model discloses a unit beam formula roadbed settlement test simulation device, include: ground settlement platform frame, settlement beam is provided with several sets, limiting beam is arranged on ground settlement platform frame, settlement control system, settlement control system includes several sets of settlement control unit, and settlement control unit is arranged below settlement beam, roadbed body, roadbed body sets up at the top surface of settlement beam, water seepage system, water seepage system includes water supply unit and water seepage pipe, and water seepage pipe is provided with several sets, and several sets of water seepage pipe equidistance parallel arrangement in roadbed body, and water supply unit is connected between water seepage pipe, wherein, the settlement control unit is installed with electronic vernier caliper, the utility model can simulate the field construction process and the settlement function of ground truly, plays its prototype condition under the intuitiveness of test, can give full play to the systematicness, stability and accuracy of indoor test determination again, to draw reliable big scale model test conclusion.

Description

Technical Field

[0001] This utility model relates to the field of roadbed construction technology, and in particular to a unit beam roadbed settlement test simulation device. Background Technology

[0002] Collapsible loess refers to soil that, under certain pressure and when soaked with water, rapidly deteriorates in structure and experiences significant additional settlement, particularly impacting the safety of building structures. Constructing roadbeds in large areas of collapsible loess is highly susceptible to problems such as roadbed settlement and slope collapse due to the loose structure of the loess and the influence of train loads and rainfall, thus threatening traffic safety. Therefore, the challenge of settlement disasters in roadbed engineering in collapsible loess areas urgently requires in-depth research to address the key scientific issues behind the technological bottlenecks in the prevention and control of such geological hazards.

[0003] To better and more realistically study and analyze the disaster-inducing mechanism of roadbed engineering in collapsible loess areas, and to overcome the shortcomings of field tests and small-scale model tests, this utility model proposes a test device to simulate roadbed foundation settlement. Utility Model Content

[0004] The purpose of this invention is to provide a unit beam roadbed settlement test simulation device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a unit beam type roadbed settlement test simulation device, comprising:

[0006] Foundation settlement platform frame;

[0007] Settlement beams, wherein several sets of settlement beams are provided, and several sets of settlement beams are erected side by side on the foundation settlement platform frame;

[0008] A limiting beam is provided, which is arranged on the foundation settlement platform frame, and the settlement beam and the limiting beam are mutually limiting and cooperating.

[0009] A settlement control system, comprising several sets of settlement control units, each set of settlement control units being arranged corresponding to the settlement beam, and the settlement control units being arranged below the settlement beam for controlling the settlement of the settlement beam;

[0010] The roadbed is disposed on the top surface of the settlement beam;

[0011] A water infiltration system, comprising a water supply unit and infiltration pipes, wherein several groups of infiltration pipes are arranged in parallel at equal intervals within the roadbed, and the water supply unit is connected to the infiltration pipes.

[0012] The settlement control unit is equipped with an electronic vernier caliper for measuring the settlement amount.

[0013] According to the unit beam type roadbed settlement test simulation device provided by this utility model, the settlement beam is a longitudinal settlement beam, and several sets of longitudinal settlement beams are provided. Several sets of longitudinal settlement beams are built side by side on the foundation settlement platform frame, and the bottom of the longitudinal settlement beam is fixed to the settlement control unit.

[0014] According to the unit beam type roadbed settlement test simulation device provided by this utility model, the limiting beam includes a longitudinal limiting beam. Several sets of the longitudinal limiting beams are fixed at equal intervals on the foundation settlement platform frame, and the longitudinal settlement beams are arranged between adjacent longitudinal limiting beams.

[0015] According to the unit beam type roadbed settlement test simulation device provided by this utility model, the settlement beam is a transverse settlement beam, and several sets of transverse settlement beams are provided. Several sets of transverse settlement beams are erected side by side on the foundation settlement platform frame, and the bottom of the transverse settlement beam is fixed to the settlement control unit.

[0016] According to the unit beam type roadbed settlement test simulation device provided by this utility model, the limiting beam includes a transverse limiting beam. Several sets of transverse limiting beams are fixed at equal intervals on the foundation settlement platform frame, and transverse settlement beams are arranged between adjacent transverse limiting beams.

[0017] According to the unit beam roadbed settlement test simulation device provided by this utility model, the settlement control unit includes several jack bases and mechanical jacks. The jack bases are respectively fixed to the bottom of the mechanical jacks. The top of the mechanical jacks is fixed with a pad. The pad is fixed to the bottom of the settlement beam. An electronic vernier caliper is provided between the pad and the jack base. The pads on adjacent mechanical jacks are connected by a connecting rod.

[0018] According to the unit beam roadbed settlement test simulation device provided by this utility model, the water supply unit includes a constant pressure water tank and a water supply pump. The water supply pump is connected to the output end of the constant pressure water tank. The output end of the water supply pump is connected to the seepage pipe through a delivery pipe and a diversion pipe. A flow valve is installed on the delivery pipe.

[0019] According to the unit beam roadbed settlement test simulation device provided by this utility model, the mechanical jack is detachably connected to an adjustable lifting rod.

[0020] The present invention discloses the following technical effects:

[0021] This invention allows for the individual control units of each settling control unit in the settlement control system to control the settlement of the corresponding settlement beams. Combined with real-time measurement using electronic vernier calipers, it enables precise control and recording of settlement, providing accurate data for experimental research.

[0022] In this utility model, several sets of seepage pipes are arranged in parallel at equal intervals in the seepage system, and the water supply unit is adjustable, which can flexibly simulate different seepage intensities and ranges, and meet the needs of foundation settlement simulation under various hydrological conditions.

[0023] The limiting beam and the settlement beam of this invention are matched to each other, which effectively prevents the settlement beam from shifting during the settlement process and ensures the stability and reliability of the experimental process.

[0024] This utility model of electronic vernier caliper can measure and record settlement in real time without manual intervention, which improves the efficiency and accuracy of data acquisition and facilitates subsequent data processing and analysis.

[0025] This invention can simulate foundation changes under different settlement and seepage conditions, and is applicable to foundation settlement research in fields such as roads and buildings, providing a reference for related engineering design and construction. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the unit beam type roadbed settlement test simulation device of this utility model;

[0028] Figure 2 This is a schematic diagram of the longitudinal settlement beam of this utility model;

[0029] Figure 3 This is a schematic diagram showing the longitudinal arrangement of the mechanical jacks of this utility model;

[0030] Figure 4 This is a schematic diagram of the transverse settlement beam of this utility model;

[0031] Figure 5 This is a schematic diagram showing the horizontal arrangement of the mechanical jacks of this utility model;

[0032] Figure 6 This is a schematic diagram of the limiting beam of this utility model;

[0033] Figure 7 This is a schematic diagram of the settlement control unit of this utility model.

[0034] The components include: 1. Foundation settlement platform frame; 2. Subgrade; 3. Drainage pipe; 4. Electronic vernier caliper; 5. Longitudinal settlement beam; 6. Longitudinal limiting beam; 7. Transverse settlement beam; 8. Transverse limiting beam; 9. Jack base; 10. Mechanical jack; 11. Pad; 12. Connecting rod; and 13. Adjustable lifting rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figures 1-7 This utility model provides a unit beam type roadbed settlement test simulation device, comprising:

[0038] Foundation settlement platform frame 1;

[0039] Settlement beams, several sets of settlement beams are set up side by side on the foundation settlement platform frame 1;

[0040] A limiting beam is arranged on the foundation settlement platform frame 1, and the settlement beam and the limiting beam are matched in a limiting manner.

[0041] The settlement control system includes several sets of settlement control units, which are arranged corresponding to the settlement beam. The settlement control units are located below the settlement beam and are used to control the settlement of the settlement beam.

[0042] Roadbed 2, which is set on the top surface of the settlement beam;

[0043] The infiltration system includes a water supply unit and infiltration pipes 3. Several sets of infiltration pipes 3 are arranged in parallel at equal intervals within the roadbed 2. The water supply unit is connected to the infiltration pipes 3.

[0044] The settlement control unit is equipped with an electronic vernier caliper 4, which is used to measure the settlement.

[0045] In operation, this invention first constructs a foundation settlement platform frame 1 to ensure structural stability and provide foundation support for subsequent component installation. Several sets of settlement beams are then erected side-by-side on the foundation settlement platform frame 1, and their positions are adjusted to ensure neat alignment. Limiting beams are placed on the foundation settlement platform frame 1 to ensure precise positioning and prevent displacement of the settlement beams during settlement. Settlement control units are then positioned below the settlement beams to complete the assembly of the settlement control system. An electronic vernier caliper 4 is installed on the settlement control unit and calibrated to ensure measurement accuracy. A roadbed 2 is constructed on the top surface of the settlement beams, and several sets of drainage pipes 3 are arranged parallel and at equal intervals within the roadbed 2. A water supply unit is connected to the drainage pipes 3 to complete the drainage system construction, and the pipe sealing is checked. The settlement control system is then activated, and each set of settlement control units controls its corresponding settlement beam to settle according to preset parameters. During settlement, the electronic vernier caliper 4 on the settlement control unit measures the settlement of the settlement beam in real time and records the relevant data. The infiltration system is activated simultaneously, with the water supply unit supplying water to the roadbed 2 through the infiltration pipe 3 to simulate different infiltration conditions. The infiltration flow rate and duration can be controlled by adjusting the water supply unit. The settlement data and changes in the roadbed 2 under the action of infiltration are continuously monitored until the preset settlement and infiltration cycle is completed.

[0046] The scheme is further optimized so that the settlement beam is a longitudinal settlement beam 5. Several sets of longitudinal settlement beams 5 are set up and built side by side on the foundation settlement platform frame 1. The bottom of the longitudinal settlement beam 5 is fixed to the settlement control unit.

[0047] The scheme is further optimized. The limiting beam includes a longitudinal limiting beam 6. Several sets of longitudinal limiting beams 6 are fixed at equal intervals on the foundation settlement platform frame 1, and longitudinal settlement beams 5 are arranged between adjacent longitudinal limiting beams 6.

[0048] The scheme is further optimized so that the settlement beam is a transverse settlement beam 7. Several sets of transverse settlement beams 7 are set up and built side by side on the foundation settlement platform frame 1. The bottom of the transverse settlement beam 7 is fixed to the settlement control unit.

[0049] The scheme is further optimized. The limiting beam includes a transverse limiting beam 8. Several sets of transverse limiting beams 8 are fixed at equal intervals on the foundation settlement platform frame 1, and transverse settlement beams 7 are arranged between adjacent transverse limiting beams 8.

[0050] The transverse settlement beam 7 and the longitudinal settlement beam 5 can correspond to different experiments.

[0051] Further optimization of the scheme: The settlement control unit includes several jack bases 9 and mechanical jacks 10. The jack bases 9 are fixed to the bottom of the mechanical jacks 10 respectively. The top of the mechanical jacks 10 is fixed with a pad 11. The pad 11 is fixed to the bottom of the settlement beam. An electronic vernier caliper 4 is provided between the pad 11 and the jack base 9. The pads 11 on adjacent mechanical jacks 10 are connected by a connecting rod 12.

[0052] In the lowering control unit, the jack base 9 provides stable support for the mechanical jack 10. The clamping pad 11 on the top of the mechanical jack 10 is fixedly connected to the bottom of the settlement beam, forming a force transmission chain of "base-jack-clamping pad 11-settlement beam". When the mechanical jack 10 is extended or retracted, its force is directly transmitted to the settlement beam through the clamping pad 11, realizing the lifting and lowering control of the settlement beam, thereby simulating the foundation settlement process.

[0053] An electronic vernier caliper 4 is positioned between the clamping pad 11 and the jack base 9. Since the clamping pad 11 moves synchronously with the settlement beam, while the jack base 9 remains fixed, the change in distance between the two represents the settlement amount of the settlement beam. During the adjustment of the mechanical jack 10, the electronic vernier caliper 4 captures this distance change in real time, accurately records the settlement data, and provides quantitative evidence for the experiment.

[0054] The pads 11 on adjacent mechanical jacks 10 are connected by a connecting rod 12. The connecting rod 12 can constrain the relative displacement of each settlement beam, prevent a single set of settlement beams from shifting or tilting due to independent adjustment, and ensure that multiple sets of settlement beams maintain overall coordination during the settlement process, simulating a more realistic uniform or non-uniform settlement scenario.

[0055] The scheme is further optimized. The water supply unit includes a constant pressure water tank and a water supply pump. The water supply pump is connected to the output end of the constant pressure water tank. The output end of the water supply pump is connected to the seepage pipe 3 through the delivery pipe and the diversion pipe. A flow valve is installed on the delivery pipe.

[0056] The design has been further optimized, with an adjustable lifting rod 13 detachably connected to the mechanical jack 10.

[0057] The mechanical jacks 10 are leveled by adjusting the lifting rod 13 to ensure that the mechanical jacks 10 of a single set of settlement control units have the same height.

[0058] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A unit beam type roadbed settlement test simulation device, characterized in that, include: Foundation settlement platform frame (1); Settlement beams, wherein several sets of settlement beams are provided, and several sets of settlement beams are erected side by side on the foundation settlement platform frame (1); A limiting beam is arranged on the foundation settlement platform frame (1), and the settlement beam and the limiting beam are mutually limiting and cooperating; A settlement control system, comprising several sets of settlement control units, each set of settlement control units being arranged corresponding to the settlement beam, and the settlement control units being arranged below the settlement beam for controlling the settlement of the settlement beam; Roadbed (2), the roadbed (2) is disposed on the top surface of the settlement beam; The infiltration system includes a water supply unit and infiltration pipes (3). Several groups of infiltration pipes (3) are provided, and the several groups of infiltration pipes (3) are arranged in parallel at equal intervals in the roadbed (2). The water supply unit is connected to the infiltration pipes (3). The settlement control unit is equipped with an electronic vernier caliper (4) for measuring the settlement amount.

2. The unit beam type roadbed settlement test simulation device according to claim 1, characterized in that, The settlement beam is a longitudinal settlement beam (5), and several sets of the longitudinal settlement beam (5) are provided. Several sets of the longitudinal settlement beam (5) are built side by side on the foundation settlement platform frame (1), and the bottom of the longitudinal settlement beam (5) is fixed to the settlement control unit.

3. The unit beam type roadbed settlement test simulation device according to claim 2, characterized in that, The limiting beam includes a longitudinal limiting beam (6), and several sets of the longitudinal limiting beams (6) are fixed at equal intervals on the foundation settlement platform frame (1), and the longitudinal settlement beams (5) are arranged between adjacent longitudinal limiting beams (6).

4. The unit beam type roadbed settlement test simulation device according to claim 1, characterized in that, The settlement beam is a transverse settlement beam (7), and several sets of transverse settlement beams (7) are provided. Several sets of transverse settlement beams (7) are erected side by side on the foundation settlement platform frame (1), and the bottom of the transverse settlement beam (7) is fixed to the settlement control unit.

5. The unit beam type roadbed settlement test simulation device according to claim 4, characterized in that, The limiting beam includes a transverse limiting beam (8), and several sets of transverse limiting beams (8) are fixed at equal intervals on the foundation settlement platform frame (1), and transverse settlement beams (7) are arranged between adjacent transverse limiting beams (8).

6. The unit beam type roadbed settlement test simulation device according to claim 1, characterized in that, The settlement control unit includes several jack bases (9) and mechanical jacks (10). The jack bases (9) are fixed to the bottom of the mechanical jacks (10). A pad (11) is fixed to the top of the mechanical jacks (10). The pad (11) is fixed to the bottom of the settlement beam. An electronic vernier caliper (4) is provided between the pad (11) and the jack base (9). The pads (11) on adjacent mechanical jacks (10) are connected by a connecting rod (12).

7. The unit beam type roadbed settlement test simulation device according to claim 1, characterized in that, The water supply unit includes a constant pressure water tank and a water supply pump. The water supply pump is connected to the output end of the constant pressure water tank. The output end of the water supply pump is connected to the seepage pipe (3) through a delivery pipe and a diversion pipe. A flow valve is installed on the delivery pipe.

8. The unit beam type roadbed settlement test simulation device according to claim 6, characterized in that, The mechanical jack (10) is detachably connected to an adjusting lifting rod (13).

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