Water bag pre-pressing device for roadbed

Abstract

The utility model belongs to the technical field of roadbed engineering, and discloses a water bag prepressing device for a roadbed, which comprises a water bag, a water quantity adjusting component and a settlement detecting component. The plurality of water bags divide the roadbed to be measured into a plurality of pre-pressing areas, and each water bag is used for pre-pressing different pre-pressing areas. The water volume adjusting assembly comprises a water pump and a pipeline assembly, and the water pump is connected with the water bags through the pipeline assembly. In other words, the internal water storage capacity of each water bag is controlled through the water pump, and the pressure of the water bags acting on different pre-pressing areas is adjusted. The settlement detection assemblies are in one-to-one correspondence with the water bags and comprise anchoring seats, guide rails, sliding parts and displacement detection parts, the guide rails extend in the vertical direction, the lower ends of the guide rails are arranged on the anchoring seats, the sliding parts are arranged on the guide rails in a sliding mode, and the top ends of the sliding parts are not lower than the top ends of the guide rails; the displacement detection member is used for detecting the displacement of the sliding member along the guide rail.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed engineering, in particular to a roadbed water bag preloading device. Background Art

[0002] Water bag preloading is usually used in civil engineering, construction engineering and other fields in engineering construction to perform preloading, reinforcement or monitoring of structural deformation.

[0003] In the process of reinforcing the soft foundation of silt filled by sea, water bags are usually placed on the surface of soft soil roadbed, and displacement sensors are placed between the water bags and the surface of soft soil roadbed. The water bags pre-compress the soft soil roadbed, and the settlement of the roadbed is obtained by monitoring the settlement of the displacement sensor through GPS signals. However, the monitoring accuracy of this method is low, with an error of more than ten centimeters, resulting in poor settlement monitoring accuracy and affecting the quality of road construction. Utility Model Content

[0004] The utility model aims to provide a roadbed water bag preloading device, which can maintain the flatness of the roadbed under the change of softness and hardness in different areas, improve the monitoring accuracy of roadbed settlement, and improve the construction quality.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The roadbed water bag preloading device includes:

[0007] Multiple water bags;

[0008] A water volume regulating assembly, comprising a water pump and a pipeline assembly, wherein the water pump is connected to each of the water bags through the pipeline assembly;

[0009] A settlement detection component corresponding to each of the water bags, the settlement detection component comprising an anchor seat, a guide rail, a sliding member and a displacement detection member, the guide rail extending in a vertical direction, the lower end of the guide rail being arranged on the anchor seat, the sliding member being slidably arranged on the guide rail, the top end of the sliding member being not lower than the top end of the guide rail, and the displacement detection member being used to detect the displacement of the sliding member along the guide rail.

[0010] As an optional embodiment of the roadbed water bag pre-loading device, the displacement detection component is a pull rope displacement sensor, which includes a main body and a pull rope arranged on the main body, one end of the pull rope is arranged on the guide rail, and the other end is arranged on the sliding member.

[0011] As an optional embodiment of the roadbed water bag pre-pressing device, the sliding member is a hollow shell, the bottom end of the sliding member has a socket, the socket is slid downward from the top end of the guide rail and is mounted on the guide rail, and the pull rope displacement sensor is located inside the sliding member.

[0012] As an optional embodiment of the roadbed water bag preloading device, the guide rail is a guide rod, and the length of the guide rod is not less than 4 times the length of the sliding member in the vertical direction.

[0013] As an optional embodiment of the roadbed water bag preloading device, the anchor seat includes radial anchor claws, and the anchor claws are arranged at the lower end of the guide rail.

[0014] As an optional embodiment of the roadbed water bag preloading device, the anchor seat also includes a concrete block fixed outside the anchor claw.

[0015] As an optional embodiment of the roadbed water bag pre-pressing device, the water pump has a water outlet end for outputting water flow and a water return end for receiving water flow, and the pipeline assembly includes a multi-way water supply valve and a multi-way water return valve, the multi-way water supply valve is connected to the water outlet end of the water pump, the multi-way water return valve is connected to the water return end of the water pump, the multi-way water supply valve is connected to each corresponding water bag through a water inlet pipe corresponding to each water bag, and the multi-way water return valve is connected to each corresponding water bag through a water outlet pipe corresponding to each water bag.

[0016] As an optional embodiment of the roadbed water bag preloading device, a water inlet valve is provided at the connection between the water bag and the water inlet pipe, and a water outlet valve is provided at the connection between the water bag and the water outlet pipe.

[0017] As an optional embodiment of the roadbed water bag preloading device, it also includes a main controller, and the displacement detection component, the water pump, the multi-way water supply valve, the multi-way water return valve, the water inlet valve and the water outlet valve are all communicatively connected to the main controller.

[0018] As an optional embodiment of the roadbed water bag preloading device, the main controller is an STM32 single-chip microcomputer.

[0019] Beneficial effects:

[0020] When the roadbed preloading device provided by the utility model is used for construction, first, the roadbed to be tested is divided into a plurality of independent preloading areas, the area of ​​the preloading area is approximately the same as the area of ​​the water bag, and a deep hole is drilled at a drilling point selected in each preloading area; then, a settlement detection component is placed in each deep hole, specifically, the anchor seat is lowered to the bottom of the hole, so that the anchor seat is located at a deeper position of the roadbed, so that the anchor seat is fixed and does not settle, and the guide rail is located in the hole, and the top of the sliding part is flush with the surface of the roadbed to be tested; then, a water bag is arranged on each preloading area, so that the lower surface of the water bag contacts the upper surface of the roadbed in the preloading area and the upper surface of the sliding part at the same time, and then, the water pump adjusts the water storage amount in each water bag through the pipeline assembly, and monitors the detection value of the displacement detection part, so as to perform a preloading test on the roadbed to be tested. Under the pressure of the water bag, the sliding part sinks with the roadbed surface and slides along the guide rail. The displacement detection part monitors the sliding amount, which can improve the monitoring accuracy of the roadbed settlement and obtain the settlement amount of the corresponding preloading area. By monitoring the settlement and using a water pump to adjust the water volume of each water bag, it can ensure that the roadbed to be tested can still maintain flatness under the changes in the hardness of different preloading areas, ensuring the overall quality of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a settlement detection component provided by an embodiment of the utility model, which is pre-buried in a roadbed to be tested;

[0022] Figure 2 It is a schematic diagram of the arrangement of the settlement detection assembly provided by the embodiment of the utility model in different pre-pressing areas;

[0023] Figure 3 It is a schematic diagram of the structure of the water bag and the water volume regulating assembly provided in an embodiment of the utility model.

[0024] In the figure:

[0025] 100. Roadbed to be tested; 101. Deep hole;

[0026] 1. Water bag;

[0027] 2. Water volume regulating assembly; 21. Water pump; 22. Pipe assembly; 221. Multi-way water supply valve; 222. Multi-way water return valve; 223. Water inlet pipe; 224. Water outlet pipe;

[0028] 3. Settlement detection assembly; 31. Anchor seat; 311. Anchor claw; 312. Concrete block; 32. Guide rail; 33. Sliding member; 34. Displacement detection member;

[0029] 4. Main controller. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 1-Figure 3 As shown, this embodiment provides a roadbed water bag pre-pressing device, which includes a water bag 1, a water volume regulating component 2 and a settlement detection component 3.

[0035] like Figure 3 As shown, there are multiple water bags 1, and the roadbed 100 to be tested is divided into multiple pre-pressing areas, and each water bag 1 is used to pre-press a different pre-pressing area. Exemplarily, the roadbed 100 to be tested is divided into four pre-pressing areas.

[0036] like Figure 3As shown, the water volume regulating assembly 2 includes a water pump 21 and a pipeline assembly 22, and the water pump 21 is connected to each water bag 1 through the pipeline assembly 22. That is, the water volume in each water bag 1 is controlled by the water pump 21 to adjust the pressure of the water bag 1 acting on different pre-pressure areas.

[0037] like Figure 1 and Figure 2 As shown, the sedimentation detection assembly 3 corresponds one-to-one with the water bag 1. The sedimentation detection assembly 3 includes an anchor seat 31, a guide rail 32, a sliding member 33 and a displacement detection member 34. The guide rail 32 extends in a vertical direction, and the lower end of the guide rail 32 is arranged on the anchor seat 31. The sliding member 33 is slidably arranged on the guide rail 32. The top end of the sliding member 33 is not lower than the top end of the guide rail 32. The displacement detection member 34 is used to detect the displacement of the sliding member 33 along the guide rail 32.

[0038] When the roadbed water bag preloading device provided in this embodiment is used for construction, first, the roadbed 100 to be tested is divided into a plurality of independent preloading areas, the area of ​​the preloading area is approximately the same as the area of ​​the water bag 1, and a deep hole 101 is drilled at a drilling point in each preloading area. Then, a settlement detection assembly 3 is placed in each deep hole 101, specifically, the anchor seat 31 is lowered to the bottom of the hole, so that the anchor seat 31 is located at a deeper position of the roadbed, so that the anchor seat 31 is fixed and does not settle, and the guide rail 32 is located in the hole, and the top of the sliding member 33 is flush with the surface of the roadbed 100 to be tested. Next, a water bag 1 is arranged on each preloading area, so that the lower surface of the water bag 1 contacts the upper surface of the roadbed in the preloading area and the upper surface of the sliding member 33 at the same time, and then the water pump 21 regulates the water storage amount in each water bag 1 through the pipeline assembly 22, and monitors the detection value of the displacement detection member 34, so as to perform a preloading test on the roadbed 100 to be tested. Under the pressure of the water bag 1, the sliding member 33 sinks along the roadbed surface and slides along the guide rail 32. The displacement detection member 34 monitors the sliding amount, which can improve the monitoring accuracy of the roadbed settlement and obtain the settlement amount of the corresponding pre-pressing area. By monitoring the settlement and adjusting the water volume of each water bag 1 by using the water pump 21, it can be ensured that the roadbed 100 to be tested can still maintain flatness under the change of hardness in different pre-pressing areas, thereby ensuring the overall quality of the road.

[0039] The type of the displacement detection member 34 is not limited, such as an optical displacement sensor. Preferably, the displacement detection member 34 is a pull-wire displacement sensor, which includes a main body and a pull-wire disposed on the main body, one end of the pull-wire is disposed on the guide rail 32, and the other end is disposed on the sliding member 33. The pull-wire displacement sensor has the advantages of small size, compact structure, large measuring stroke and high accuracy.

[0040] like Figure 1As shown, optionally, the sliding member 33 is a hollow shell, and the bottom end of the sliding member 33 has a socket, and the socket is slid downward from the top of the guide rail 32 and sleeved on the guide rail 32, and the pull-wire displacement sensor is located in the sliding member 33. The sliding member 33 as a shell can effectively protect the internal pull-wire displacement sensor and other structures, and prevent the pull-wire displacement sensor and other structures from being contaminated by mud and the like outside the shell.

[0041] like Figure 1 As shown, optionally, the guide rail 32 is a guide rod, and the length of the guide rod is not less than 4 times the length of the sliding member 33 in the vertical direction. Specifically, the length of the guide rod is 5m, and the anchor seat 31 at the lower end of the guide rod extends into the deep soil layer, so that the guide rod itself can be fixed to prevent settlement, and the sliding member 33 is a rectangular shell, and its vertical length is 0.8m, and the distance between the top wall of the sliding member 33 and the top of the guide rod is 0.6m, which meets the settlement range.

[0042] like Figure 1 As shown, optionally, the anchor seat 31 includes radial anchor claws 311, and the anchor claws 311 are arranged at the lower end of the guide rail 32. The anchor claws 311 can be well fixed in the deep layer, so that the guide rod can be fixed.

[0043] like Figure 1 As shown, optionally, the anchor seat 31 further includes a concrete block 312 fixed outside the anchor claw 311. Specifically, after the guide rod with the anchor claw 311 is placed into the deep hole 101, cement slurry is poured into the bottom of the deep hole 101, and the cement slurry solidifies to form the concrete block 312, which fixes the anchor claw 311 and the bottom end of the deep hole 101 together. Furthermore, after the concrete block 312 solidifies and forms, soil is further filled and compacted above it to ensure that the guide rail 32 remains fixed.

[0044] like Figure 3As shown, optionally, the water pump 21 has a water outlet end for outputting water flow and a water return end for receiving water flow, and the pipeline assembly 22 includes a multi-way water supply valve 221 and a multi-way water return valve 222, the multi-way water supply valve 221 is connected to the water outlet end of the water pump 21, the multi-way water return valve 222 is connected to the water return end of the water pump 21, the multi-way water supply valve 221 is connected to the corresponding water bags 1 through the water inlet pipes 223 corresponding to each water bag 1 one by one, and the multi-way water return valve 222 is connected to the corresponding water bags 1 through the water outlet pipes 224 corresponding to each water bag 1 one by one. When in use, the multi-way water supply valve 221 is adjusted to make the water inlet pipe 223 of the water bag 1 that needs water replenishment connected to the water pump 21, and the multi-way water return valve 222 is adjusted to make the water outlet pipe 224 of the water bag 1 that needs drainage connected to the water pump 21. The water pump 21 delivers the water in the water bag 1 that needs drainage to the water bag 1 that needs water replenishment, thereby adjusting the pressure of different pre-pressing areas, and adjusting the water in the area with obvious settlement to the area with less settlement. The water utilization rate is high, the adjustment is convenient, and no additional water source is required. It is convenient to ensure that the roadbed 100 to be tested can still maintain flatness under the changes in hardness in different areas, thereby ensuring the overall quality of the road.

[0045] In this embodiment, a water inlet valve is provided at the connection between the water bag 1 and the water inlet pipe 223, and a water outlet valve is provided at the connection between the water bag 1 and the water outlet pipe 224. The water inlet valve and the water outlet valve are both arranged at the water bag 1, so as to facilitate the control of the water volume of the water bag 1. When the water bag 1 is filled with water, the water inlet valve is opened and the water outlet valve is closed, and when the water bag 1 is discharged, the water inlet valve is closed and the water outlet valve is opened.

[0046] In this embodiment, the roadbed water bag preloading device also includes a main controller 4. The displacement detection member 34, the water pump 21, the multi-way water supply valve 221, the multi-way water return valve 222, the water inlet valve and the water outlet valve are all connected to the main controller 4 in communication. In other words, the displacement information obtained by the displacement detection member 34 is collected by the main controller 4, and the main controller 4 is used to control the switches of the multi-way water supply valve 221, the multi-way water return valve 222, the water inlet valve and the water outlet valve. Not only automation is achieved without human intervention, but also the water distribution of each water bag 1 can be dynamically adjusted according to the actual situation, thereby improving the stability and consistency of the construction. During the construction process, the main controller 4 can use the displacement detection member 34 to continuously monitor the settlement, and use the water pump 21 and the pipeline assembly 22 to adjust the water volume of each water bag 1 to ensure that the roadbed can maintain a better flatness after compaction.

[0047] In this embodiment, the main controller 4 is an STM32 single chip microcomputer, which is remotely connected to the displacement detection element 34, the water pump 21, the multi-way water supply valve 221, the multi-way water return valve 222, the water inlet valve and the water outlet valve.

[0048] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A roadbed water bag preloading device, characterized in that: include: A plurality of water bags (1); A water volume regulating assembly (2), comprising a water pump (21) and a pipeline assembly (22), wherein the water pump (21) is connected to each of the water bags (1) via the pipeline assembly (22); A sedimentation detection assembly (3) corresponding to each of the water bags (1) is provided. The sedimentation detection assembly (3) comprises an anchor seat (31), a guide rail (32), a sliding member (33) and a displacement detection member (34). The guide rail (32) extends in a vertical direction. The lower end of the guide rail (32) is arranged on the anchor seat (31). The sliding member (33) is slidably arranged on the guide rail (32). The top end of the sliding member (33) is not lower than the top end of the guide rail (32). The displacement detection member (34) is used to detect the displacement of the sliding member (33) along the guide rail (32).

2. The roadbed water bag preloading device according to claim 1 is characterized in that: The displacement detection member (34) is a pull-rope displacement sensor, which comprises a main body and a pull-rope arranged on the main body, one end of the pull-rope being arranged on the guide rail (32) and the other end being arranged on the sliding member (33).

3. The roadbed water bag preloading device according to claim 2 is characterized in that: The sliding member (33) is a hollow shell, and the bottom end of the sliding member (33) has a socket, and the socket is slid downward from the top end of the guide rail (32) and sleeved on the guide rail (32), and the pull rope displacement sensor is located in the sliding member (33).

4. The roadbed water bag preloading device according to claim 3 is characterized in that: The guide rail (32) is a guide rod, and the length of the guide rod is not less than 4 times the length of the sliding member (33) in the vertical direction.

5. The roadbed water bag preloading device according to claim 1 is characterized in that: The anchor seat (31) comprises radial anchor claws (311), and the anchor claws (311) are arranged at the lower end of the guide rail (32).

6. The roadbed water bag preloading device according to claim 5 is characterized in that: The anchor seat (31) further comprises a concrete block (312) fixed outside the anchor claw (311).

7. The roadbed water bag preloading device according to claim 1 is characterized in that: The water pump (21) has a water outlet for outputting water flow and a water return end for receiving water flow. The pipeline assembly (22) comprises a multi-way water supply valve (221) and a multi-way water return valve (222). The multi-way water supply valve (221) is connected to the water outlet of the water pump (21), and the multi-way water return valve (222) is connected to the water return end of the water pump (21). The multi-way water supply valve (221) is connected to each of the corresponding water bags (1) through a water inlet pipe (223) corresponding to each of the water bags (1), and the multi-way water return valve (222) is connected to each of the corresponding water bags (1) through a water outlet pipe (224) corresponding to each of the water bags (1).

8. The roadbed water bag preloading device according to claim 7 is characterized in that: A water inlet valve is provided at the connection point between the water bag (1) and the water inlet pipe (223), and a water outlet valve is provided at the connection point between the water bag (1) and the water outlet pipe (224).

9. The roadbed water bag preloading device according to claim 8, characterized in that: It also includes a main controller (4), and the displacement detection element (34), the water pump (21), the multi-way water supply valve (221), the multi-way water return valve (222), the water inlet valve and the water outlet valve are all communicatively connected to the main controller (4).

10. The roadbed water bag preloading device according to claim 9, characterized in that: The main controller (4) is an STM32 single-chip microcomputer.

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