Drainage lattice unit for slope drainage and drainage lattice system formed thereby

Abstract

The utility model discloses a drainage lattice unit and drainage lattice system formed for side slope drainage, and the drainage lattice unit includes internal drainage structure body and external drainage structure body, and the surface water drainage channel with top opening is formed between internal drainage structure body and external drainage structure body, the internal drainage structure body has the closed water storage cavity, and the side of internal drainage structure body far away from surface water drainage channel is the slope side, and the internal drainage structure body has the closed water pumping pipe layout cavity at the bottom of water storage cavity, and the water pumping pipe layout cavity is internally arranged with water pumping pipe, and the water pumping pipe is communicated with water storage cavity through the drainage pipe. The utility model discloses the drainage lattice unit and the drainage lattice system formed for constructing with the bottom of side slope, realizes the dual purpose of side slope internal water discharge and side slope surface water discharge, improves side slope monitoring and drainage construction standardization and integration, can reduce the pore water pressure discharge pressure of slope body, improves the stability of side slope.

Description

Technical Field

[0001] This utility model relates to the field of slope drainage management technology, and in particular to a drainage grid unit for slope drainage and the drainage grid system formed therefrom. Background Technology

[0002] Water is a significant factor contributing to slope instability, especially during extreme weather events, with rainfall-induced slope instability showing an increasing trend. Slope drainage is crucial for slope stability, particularly for mitigating disasters under extreme rainfall conditions. Surface water infiltration and increased pore water pressure within the slope significantly reduce the shear strength of the soil and rock, thereby inducing geological disasters such as landslides and collapses. Therefore, establishing an effective slope drainage system is a key measure to ensure slope stability. Slope drainage grids are structures used for slope protection, primarily for drainage and slope reinforcement, preventing landslides and collapses caused by water. However, traditional slope drainage technologies often have limitations; for example, common surface drainage facilities such as intercepting ditches and drainage ditches, while able to intercept and divert some surface runoff, are ineffective against water that has already infiltrated into the slope. While underground drainage facilities, such as blind drains, seepage ditches, and drainage holes, can drain some groundwater, their drainage range is limited. Moreover, these traditional drainage measures are often passive and cannot be actively adjusted and intervened according to the dynamic changes in the hydrological conditions inside the slope. They are unable to cope with the severe challenges to slope stability posed by sudden events such as extreme weather (such as continuous heavy rainfall). Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems pointed out in the background art, and to provide a drainage grid unit for slope drainage and the drainage grid system formed therefrom, which realizes the dual purpose of internal water drainage and surface water drainage of the slope, improves the standardization and integration of slope monitoring and drainage construction, reduces the pore water pressure of the slope, and improves the stability of the slope.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A drainage grid unit for slope drainage includes an internal drainage structure and an external drainage structure. The bottoms of the internal and external drainage structures are integrally constructed through a structural base plate, forming a surface water drainage channel with a top opening between the internal and external drainage structures. The internal drainage structure has a closed water storage cavity inside, and the side of the internal drainage structure away from the surface water drainage channel is a slope side. A water inlet hole communicating with the water storage cavity is opened on the slope side of the internal drainage structure. The internal drainage structure has a closed pumping pipe layout cavity at the bottom of the water storage cavity, and a pumping pipe is arranged inside the pumping pipe layout cavity. The pumping pipe is connected to the water storage cavity through a drainage pipe.

[0006] To better realize this utility model, the bottom of the water storage cavity is a cavity bottom plate, the cavity bottom plate is connected to a drain pipe, the top of the water pumping pipe has a pipe joint, and the pipe joint of the water pumping pipe and the drain pipe are sealed and connected by a socket flange.

[0007] Preferably, the drainage pipe of the drainage grid unit is located at the end of the internal drainage structure.

[0008] Preferably, the external drainage structure has a monitoring and mounting cavity with a top opening, and the top opening of the monitoring and mounting cavity of the external drainage structure is closed by a closed top cover; a sensor assembly is installed in the monitoring and mounting cavity of the external drainage structure, and the sensor assembly includes a pressure sensor.

[0009] Preferably, the monitoring installation cavity of the external drainage structure is fixed with a slide rail arranged along the height direction on the side near the surface water drainage channel, and the sensor assembly is slidably installed on the slide rail.

[0010] Preferably, the monitoring installation cavity of the external drainage structure has a reinforcing structural plate at the bottom, a bottom cavity is formed below the reinforcing structural plate, and the monitoring installation cavity is above the reinforcing structural plate.

[0011] Preferably, the reinforcing structural plate has drainage holes.

[0012] Preferably, the overall height of the internal drainage structure is lower than that of the external drainage structure, the top surface of the internal drainage structure is a slope, the side of the slope closest to the water inlet is the top side, and the side of the slope closest to the surface water drainage channel is the bottom side.

[0013] Preferably, the internal drainage structure has an inspection port on the side of the pumping pipe layout cavity near the surface water drainage channel.

[0014] A drainage grid system composed of drainage grid units is provided, in which several drainage grid units are arranged side by side in sequence. The surface water drainage channels of all drainage grid units are connected in sequence to form a surface water drainage channel system. The water storage cavities of all drainage grid units are connected in sequence to form a water storage cavity system. The pumping pipe layout cavities of all drainage grid units are connected in sequence to form a pumping pipe layout cavity system. The pumping pipes of all drainage grid units share a single long pumping pipe. The connection between two adjacent drainage grid units is sealed.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0016] (1) This utility model is a drainage grid unit constructed at the bottom of the slope and a drainage grid system formed therein, which realizes the dual purpose of internal water discharge and surface water discharge of the slope, improves the standardization and integration of slope monitoring and drainage construction, reduces the pore water pressure discharge pressure of the slope, and improves the stability of the slope.

[0017] (2) This utility model integrates a sensor assembly, which can monitor the water pressure on the slope surface and the water content of the slope, and has the advantages of high integration and novel structure. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the drainage grid unit of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure from the front view.

[0020] The names corresponding to the reference numerals in the attached figures are as follows:

[0021] 1 - Internal drainage structure, 11 - Sloping surface, 2 - Water storage cavity, 3 - Cavity bottom plate, 4 - Pumping pipe layout cavity, 41 - Inspection port, 5 - Pumping pipe, 6 - Drainage pipe, 7 - Water inlet, 8 - Surface water drainage channel, 9 - External drainage structure, 91 - Monitoring installation cavity, 911 - Reinforcing structural plate, 912 - Bottom cavity, 92 - Enclosed top cover, 10 - Slide rail, 12 - Sensor assembly, 13 - Structural base plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments:

[0023] Example

[0024] like Figure 1 , Figure 2As shown, a drainage grid unit for slope drainage includes an inner drainage structure 1 and an outer drainage structure 9. The bottom of the inner drainage structure 1 and the bottom of the outer drainage structure 9 are integrally constructed through a structural base plate 13. In this embodiment, the inner drainage structure 1, the outer drainage structure 9, and the structural base plate 13 are preferably made of HDPE material (High-Density Polyethylene). HDPE material is a thermoplastic resin polymerized from ethylene monomers under high or low pressure. A surface water drainage channel 8 with a top opening is formed between the inner drainage structure 1 and the outer drainage structure 9. The inner drainage structure 1 has a closed water storage cavity 2 inside. The side of the inner drainage structure 1 away from the surface water drainage channel 8 is the slope side (the slope side is the side that is combined with the slope; preferably, the slope side is reinforced with a multi-layer structure). The slope side of the inner drainage structure 1 has an inlet hole 7 that communicates with the water storage cavity 2. Figure 1 , Figure 2 As shown, the overall height of the internal drainage structure 1 is lower than that of the external drainage structure 9. The top surface of the internal drainage structure 1 is a slope 11. The side of the slope 11 closest to the water inlet 7 is the top side of the slope, and the side of the slope 11 closest to the surface water drainage channel 8 is the bottom side of the slope.

[0025] like Figure 2 As shown, the internal drainage structure 1 has a closed pumping pipe layout cavity 4 located at the bottom of the water storage cavity 2. Preferably, the pumping pipe layout cavity 4 of the internal drainage structure 1 has an inspection port 41 on the side near the surface water drainage channel 8 (the inspection port 41 facilitates maintenance work after the installation of one or more drainage grid units). A pumping pipe 5 is installed inside the pumping pipe layout cavity 4, and the pumping pipe 5 is connected to the water storage cavity 2 via a drainage pipe 6. Preferably, a pumping pump is installed at the end of the pumping pipe 5.

[0026] like Figure 2 As shown, the bottom of the water storage cavity 2 is a cavity bottom plate 3, which is connected to a drain pipe 6. The top of the pumping pipe 5 has a pipe joint, and the pipe joint of the pumping pipe 5 and the drain pipe 6 are sealed together by a socket flange. Preferably, in order to facilitate the installation and connection between the pipe joint of the pumping pipe 5 and the drain pipe 6, the drain pipe 6 of the drainage grid unit is located at the end of the inner drainage structure 1; for a single drainage grid unit, the installation connection is located at the end of the drainage grid unit (i.e., at the end of the inner drainage structure 1), which facilitates the installation operation by the installer.

[0027] In some embodiments, such as Figure 1 , Figure 2As shown, the external drainage structure 9 has a monitoring installation cavity 91 with a top opening. The top opening of the monitoring installation cavity 91 is closed by a sealing top cover 92. A sensor assembly 12 is installed in the monitoring installation cavity 91. The sensor assembly 12 includes a pressure sensor, a moisture content detection sensor and / or a moisture percentage detection sensor. Some pressure sensors are used to detect the water pressure in the surface water drainage channel 8, and some pressure sensors can also be used to detect the pressure in the water storage cavity 2 (the detection end of the pressure sensor is placed in the water storage cavity 2 through a wire). The detection ends of the moisture content detection sensor and the moisture percentage detection sensor are placed inside the slope on the outer side of the slope of the internal drainage structure 1 through wires to detect the moisture content and moisture percentage inside the slope. A slide rail 10 arranged along the height direction is fixed on the side of the monitoring installation cavity 91 of the external drainage structure 9 near the surface water drainage channel 8. The sensor assembly 12 is slidably installed on the slide rail 10, and each sensor in the sensor assembly 12 can slide up and down on the corresponding slide rail 10. This invention also includes a monitoring terminal, which is connected to the sensor assembly 12 and stores and displays the real-time data detected by the sensor assembly 12.

[0028] like Figure 2 As shown, the monitoring mounting cavity 91 of the external drainage structure 9 has a reinforcing structural plate 911 at its bottom, a bottom cavity 912 is formed below the reinforcing structural plate 911, and the monitoring mounting cavity 91 is above the reinforcing structural plate 911. In this preferred embodiment, the reinforcing structural plate 911 has a drainage hole that communicates with the monitoring mounting cavity 91.

[0029] In use, the slope side of the internal drainage structure 1 of the drainage grid unit is constructed correspondingly at the bottom of the slope. The inlet 7 of the internal drainage structure 1 is connected to the drainage hole inside the slope (if there is a corresponding drainage hole inside the slope). If there is no corresponding drainage hole inside the slope, the inlet 7 serves as the inlet for water to collect at the bottom of the slope and is used for water discharge from inside the slope. Water inside the slope enters the water storage chamber 2 through the inlet 7, and then enters the pumping pipe 5 through the drainage pipe 6. The pumping pipe 5 is connected to a pump (when there is a large amount of seepage inside the slope, or during the slope construction and compaction stage, a pump can be used to quickly remove and discharge the water). Water on the slope surface flows through the slope surface 11 into the surface water drainage channel 8 and is discharged through the surface water drainage channel 8.

[0030] A drainage grid system composed of drainage grid units is provided, in which several drainage grid units are arranged side by side in sequence. The surface water drainage channels 8 of all drainage grid units are connected in sequence to form a surface water drainage channel system. The water storage cavities 2 of all drainage grid units are connected in sequence to form a water storage cavity system. The pumping pipe layout cavities 4 of all drainage grid units are connected in sequence to form a pumping pipe layout cavity system. The pumping pipes 5 of all drainage grid units are shared as a long pumping pipe. The connection between adjacent drainage grid units is sealed.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drainage grid unit for slope drainage, characterized in that: It includes an internal drainage structure and an external drainage structure. The bottom of the internal drainage structure and the bottom of the external drainage structure are constructed as one unit through a structural base plate. A surface water drainage channel with a top opening is formed between the internal drainage structure and the external drainage structure. The internal drainage structure has a closed water storage cavity inside. The side of the internal drainage structure away from the surface water drainage channel is a sloping side. A water inlet hole connected to the water storage cavity is opened on the sloping side of the internal drainage structure. The internal drainage structure has a closed pumping pipe layout cavity at the bottom of the water storage cavity. A pumping pipe is arranged inside the pumping pipe layout cavity. The pumping pipe is connected to the water storage cavity through a drainage pipe.

2. The drainage grid unit for slope drainage according to claim 1, characterized in that: The bottom of the water storage cavity is a cavity bottom plate, and the cavity bottom plate is connected to a drain pipe. The top of the water pumping pipe has a pipe joint, and the pipe joint of the water pumping pipe and the drain pipe are sealed and connected by a socket flange.

3. The drainage grid unit for slope drainage according to claim 2, characterized in that: The drainage pipes of the drainage grid unit are located at the end of the internal drainage structure.

4. The drainage grid unit for slope drainage according to claim 1, characterized in that: The external drainage structure has a monitoring and mounting cavity with a top opening, and the top opening of the monitoring and mounting cavity of the external drainage structure is closed by a closed top cover; a sensor assembly, including a pressure sensor, is installed in the monitoring and mounting cavity of the external drainage structure.

5. The drainage grid unit for slope drainage according to claim 4, characterized in that: The monitoring installation cavity of the external drainage structure is fixed with a slide rail arranged along the height direction on the side near the surface water drainage channel, and the sensor assembly is slidably installed on the slide rail.

6. The drainage grid unit for slope drainage according to claim 4, characterized in that: The monitoring installation cavity of the external drainage structure has a reinforcing structural plate at the bottom, a bottom cavity is formed below the reinforcing structural plate, and the monitoring installation cavity is above the reinforcing structural plate.

7. The drainage grid unit for slope drainage according to claim 6, characterized in that: The reinforced structural plate has drainage holes.

8. The drainage grid unit for slope drainage according to claim 1, characterized in that: The overall height of the internal drainage structure is lower than that of the external drainage structure. The top surface of the internal drainage structure is a sloping surface, with the side of the sloping surface closer to the water inlet being the top side and the side of the sloping surface closer to the surface water drainage channel being the bottom side.

9. The drainage grid unit for slope drainage according to claim 1, characterized in that: The internal drainage structure has an inspection port on the side of the pumping pipe layout cavity closest to the surface water drainage channel.

10. A drainage grid system composed of drainage grid units as described in any one of claims 1 to 9, characterized in that: Several drainage grid units are arranged side by side in sequence. The surface water drainage channels of all drainage grid units are connected in sequence to form a surface water drainage channel system. The water storage cavities of all drainage grid units are connected in sequence to form a water storage cavity system. The pumping pipe layout cavities of all drainage grid units are connected in sequence to form a pumping pipe layout cavity system. The pumping pipes of all drainage grid units are shared by a single long pumping pipe. The connection between two adjacent drainage grid units is sealed.

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