KR101475470B1

KR101475470B1 - Rainfall mode provision for debris flow or slope erosion flume

Info

Publication number: KR101475470B1
Application number: KR1020140051637A
Authority: KR
Inventors: 정관수; 정안철; 김민석
Original assignee: 충남대학교산학협력단
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2014-12-22

Abstract

The present invention relates to a simulation testing apparatus providing a rainfall environment of mud and stone flow or slope erosion and, more specifically, to a simulation testing apparatus providing a rainfall environment of mud and stone flow or slope erosion that is capable of testing mud and stone flow or slope erosion in an accurate rainfall environment because water is supplied to a flume only in case the water injected from an upper portion of the flume is injected at a set pressure. According to the present invention, a nozzle shield blocks a lower portion of a rainfall nozzle to be capable of being opened and closed, and thus the supply of the water injected at an early stage from the rainfall nozzle to the flume can be prevented. Accordingly, only the water having the set pressure is supplied to the flume and the testing can be performed in the accurate rainfall environment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rainfall-

The present invention relates to a simulated test apparatus for providing a rainfall environment of soil erosion and slope erosion, and more particularly, to a simulation test apparatus for providing a rainfall environment simulating test apparatus, The present invention relates to a simulated test apparatus for providing a rainfall environment of soil erosion and slope erosion which can be tested.

Due to the frequent occurrence of heavy rains due to recent weather events, interest and awareness about landslides and slope collapse are increasing more and more. In the summer season, due to the rainy season and heavy rains with typhoons, And landslides, resulting in deaths and massive damage to property.

The main cause of landslides occurring in Korea is locally heavy rainfall. When a lot of rain comes in a short time, the shallow soil layer on the bedrock flows down and slope erosion occurs. Soils along the valley, debris flow occurs.

The debris flow materials, which are the main constituent of the debris flow, contain several meters of boulder in very small clay particles (less than 0.002 mm) Destroy and cause many human casualties.

In recent years, there have been developed simulated test apparatuses for testing the characteristics of slope erosion and soil erosion indoors.

There is an indoor model test apparatus for simulating the flow characteristics for each type of landslide proposed in Korean Patent Registration No. 10-1195403 as a simulation apparatus of the prior art.

As shown in FIG. 1, a plurality of plumes 300 forming a path of the earths stone are formed, and the inclination angle of the plumes 300 is varied to form a test environment. The rain is simulated by spraying water through the nozzle 910 in the upper part.

Here, in order to accurately simulate the rainfall environment of the heavy rain, the injection pressure of the nozzle 910 should be set to various pressures, and the water must be uniformly sprayed at the set pressure.

Generally, since the initial pressure of the nozzle 910 is unstable, it takes a certain time until the pressure is set to a predetermined pressure.

However, in the test apparatus of the prior art, since water initially sprayed from the nozzle 910 is sprayed directly onto the plume 300, it is impossible to test the accurate rainfall environment.

Korean Patent Publication No. 10-1195403

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for supplying a water of a rainfall nozzle to a plume only when water sprayed from a rainfall nozzle reaches a set pressure, The present invention has been made to provide a simulated test apparatus capable of providing a rainfall environment of erosion.

Another object of the present invention is to provide a simulated test apparatus capable of simulating a flow environment of surface water due to rainfall along with a rainfall environment caused by a rainfall nozzle, and providing a rainfall environment with soil erosion and slope erosion.

According to another aspect of the present invention, there is provided a simulated test apparatus for providing a rainfall environment of a soil erosion type slope, comprising: a frame; At least one plume that is angularly coupled to the frame to provide a ramp of debris or slope erosion; A plurality of rainfall nozzles installed at an upper portion of the plume and simulating a rainfall environment while spraying water of a set pressure to the plume; And a nozzle shield which is openably and closably provided at a lower portion of the rainfall nozzle and discharges the water sprayed from the rainfall nozzle to the outside of the plume while blocking the water sprayed from the rainfall nozzle until the water sprayed from the rainfall nozzle is sprayed at a predetermined pressure .

For example, the nozzle shield is provided at a lower portion of the rainfall nozzle with a fixed end hinged to the frame, and has a free end pivoting about the hinge to open or shield the lower part of the rainfall nozzle; Guiding means for guiding the water of the rainfall nozzle blocked by the shielding of the closure plate to the outer periphery of the plume; And a locking member for detachably fixing the free end of the cover plate to the frame and locking the cover plate in a shielded state.

For example, the shielding plate may include a frame-shaped shielding plate frame hinged to the frame and making the fixed end and the free end thereof hinged together; And a shielding membrane of a waterproofing material, which is coupled to the shielding plate frame and blocks water sprayed from the rainfall nozzle.

For example, the guide means may include a drain communicating with the closure plate and draining the water of the rainfall nozzle to the outside of the plume.

In addition, the guide means may guide the water of the rainfall nozzle to the outer periphery of the plume through the inclined surface while the shielding plate shields the lower portion of the rainfall nozzle in an inclined state.

For example, the locking member may include a velcro fastener that is provided on the frame and the cover plate in male and female form, and is fixed while being coupled to each other or separated by pressing.

Alternatively, the locking member may include a latching protrusion which is provided in the frame so as to protrude and retract, and which locks the blocking plate while being caught by the free end of the blocking plate.

The locking member may further include an actuator for providing locking force to the locking projection to control locking of the locking plate while projecting and retracting the locking projection.

The nozzle shield may further include a rotating member that rotates the free end of the cover plate while providing a rotational force to the cover plate.

For example, the rotating member may include a retractor that rotates the clipping plate while pulling the free end of the clipping plate while being fixed to the frame.

The present invention may further comprise a surface water supply member for separating the rainfall nozzle and supplying water to the floum in a state adjacent to the floum to simulate the flow environment of the surface water in the soil stone.

For example, the surface water supply member may include a tubular surface water nozzle installed adjacent to the plume across the width of the plume, a plurality of drainage holes formed along an outer circumferential surface to discharge water through the drainage hole; And a sponge coupled with the surface water nozzle in a wrapped state to prevent dispersion of water discharged from the drain hole.

Since the nozzle shield shields the lower part of the rainfall nozzle so as to be able to open and close as the rain shield is provided, the water spraying at the initial injection from the rainfall nozzle can be prevented, The water can be tested by establishing an accurate rainfall environment.

Specifically, water in the rainfall nozzle is discharged to the outside of the plume while the cover plate constituting the nozzle shield rotates to shield the lower part of the rainfall nozzle, so that the water of the rainfall nozzle that is initially sprayed is not supplied to the plume, An accurate rainfall environment can be created by opening the cover when the pressure is stabilized at the set pressure.

Further, since the shielding plate is locked to the frame by the Velcro fastener or locked in the state of being caught by the engagement protrusion, the shielding plate can be fixed in a state shielding the rainfall nozzle.

Further, in the case where an actuator for projecting and retracting the locking projection is formed, the opening of the rainfall nozzle by the closure plate can be automatically performed.

Further, as the shielding plate is rotated by the retractor constituting the rotating member, the closing of the rainfall nozzle by the shielding plate can be automatically performed.

Since the sponge is wound on the surface water nozzle constituting the surface water supply member and water is discharged to the plume, the flow environment of the surface water can be simulated because the water is supplied to the plume while the water is prevented from being dispersed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a simulation test apparatus for soil erosion and slope erosion according to the prior art; FIG.
Fig. 2 is a schematic view showing a simulated test apparatus for providing a rainfall environment of a meteoric erosion and slope erosion according to the present invention. Fig.
3 is a perspective view showing the nozzle shield of the present invention.
4 is a front view showing a state in which a rainfall nozzle is shielded by a nozzle shield according to the present invention;
5 is an enlarged view showing another embodiment of the locking member shown in Fig.
6 is a configuration diagram showing a surface water supply member of the present invention;

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

2 is a block diagram of a simulated test apparatus for providing a rainfall environment of a soil erosion and slope erosion according to the present invention. The simulated test apparatus includes a frame 100, a plume 200, a rainfall nozzle 300 and a nozzle shield 400 .

The frame 100 is a member that provides a supporting force for constructing the test apparatus of the present invention in a room, and is installed through a combination of a horizontal frame and a vertical frame.

Such a frame 100 may be installed in a form conforming to the shape of the test chamber or the size and quantity of the plume 200.

3, the plume 200 is formed as a pipe having an open top, and is a constituent element providing a slope of the erosion of the meteorite or slope.

As shown in FIG. 2, the plumes 200 may be connected to each other as shown in FIG. 2. The plumes 200 may be installed in a state where the angle of the frame 100 is adjustable, thereby providing various test environments through angle adjustment.

For example, as shown in FIG. 2, the plume 200 can be adjusted in inclination angle while the other side is raised and lowered by the hoist 220 while one side is coupled to the frame 100 through the hinge 210.

As shown in FIG. 2, the plume 200 may be coupled to the elevator 230 so that the inclination angle of the plume 200 can be adjusted while the both ends thereof are lifted and lowered.

Meanwhile, the plume 200 may be formed in a rectangular shape having an open top as shown in FIG. 4, or may be formed in an inverted triangular shape, a semicircular shape, or a semi-hexagonal shape depending on a test form.

In addition, the plume 200 may be provided with an unillustrated gate to store the debris constituting the debris, and the debris may be supplied from a storage tank (not shown).

The rainfall nozzle 300 is a component for simulating the rainfall environment in the full room 200. The rainfall nozzle 300 is installed on the upper part of the plume 200 as shown in FIGS. Water is sprayed to provide rainfall conditions such as heavy rainfall.

The rainfall nozzle 300 is connected to a pump (not shown) and is supplied with water. The plurality of rainfall nozzles 300 spray water to the plume 200.

Here, the plurality of rainfall nozzles 300 may be provided with open / close valves (not shown), respectively, and spraying of water may be controlled according to the length or shape of the plume 200.

Also, since the rainfall nozzle 300 is equipped with the pressure regulator (not shown), the water supplied from the pump can be set to various pressures.

2 and 3, the nozzle shield 400 shields the lower part of the rainfall nozzle 300 so as to openably close the rainfall nozzle 300 to prevent the initial sprayed water from being supplied to the plume 200 from the rainfall nozzle 300 Lt; / RTI >

That is, the nozzle shield 400 is a component that drains the water of the rainfall nozzle 300 to the outside of the plume 200 while blocking the water of the rainfall nozzle 300 until the water of the rainfall nozzle 300 reaches the set pressure.

For example, the nozzle shield 400 may include a shielding plate 410, a guide member, and a locking member 430 as shown in FIG.

3, the shielding plate 410 is fixed at one end thereof to the frame 100 with a hinge 415, and the other end of the shielding plate 410 is pivotally rotated about the hinge 415, (Not shown).

The shielding plate 410 may include a shielding plate frame 411 and a shielding film 412 as shown in FIG.

The shielding plate frame 411 has a frame shape and is fixed to the hinge 415 so as to pivot around the hinge 415.

The shielding film 412 is made of a waterproof material such as vinyl, for example, and is connected to the shielding plate frame 411 to block water sprayed from the rainfall nozzle 300.

The guiding means 420 guides the water of the rainfall nozzle 300, which is obstructed by the shielding plate 410, to the outside of the plume 200 and drains the water. For example, as shown in Fig. 3, And a drain 420 which is communicably connected to the shielding film 412 constituting the shielding film 410.

The drain 420 may be formed of the same material as the glass film 412 and may be connected to the thin film 412 while forming a tubular shape and extend to the outer side of the plume 200 as shown in FIG. The water in the rainfall nozzle 300 is drained to the outer periphery of the plume 200.

The guiding unit 420 guides the water initially sprayed from the rainfall nozzle 300 to the outer periphery of the plume 200 through the inclined surface by shielding the closure plate 410 shielding the rainfall nozzle 300 in an inclined state It is possible.

The locking member 430 is a member for locking the shielding plate 410 in a shielded state by detachably fixing the free end of the shielding plate 410 to the frame 100 as shown in FIGS.

For example, the locking member 430 may be composed of a velcro fastener 431 as shown in FIG.

As shown in FIG. 4, the velcro fastener 431 is provided at the free end of the shielding plate 410 and the frame 100 in a male and female form, and can be fixed to each other or separated by pressing.

That is, when the initial spraying of the rainfall nozzle 300 is performed by the user, the blocking plate 410 is locked in a state shielding the rainfall nozzle 300 by engagement of the Velcro fastener 431 by the user, The lower portion of the rainfall nozzle 300 is opened while the water in the rainfall nozzle 300 is rotated as the velcro fastener 431 is separated by the pressure of the user.

5, the locking member 430 is provided in the frame 100 so as to protrude from the free end of the shielding plate 410 and prevent the rotation of the shielding plate 410, ).

The locking protrusion 433 is provided with a knob (not shown) to lock the blocking plate 410 while releasing the locking of the blocking plate 410, thereby opening the lower portion of the rainfall nozzle 300.

5, the locking protrusion 433 may be connected to the actuator 435, and may be protruded or retracted by the operation of the actuator 435. [

That is, the blocking plate 410 can automatically open the lower portion of the rainfall nozzle 300 while releasing the engagement protrusion 433 automatically as the locking projection 433 is projected and retracted by the actuator 435.

On the other hand, the nozzle shield 400 may further include a rotating member 440 as shown in FIG.

The rotating member 440 is a component for automatically rotating the shielding plate 410 by providing a rotating force to the shielding plate 410.

4, the rotation member 440 is connected to the free end of the shielding plate 410 while being fixed to the frame 100 to extend and contract the free end of the shielding plate 410, And a retractor.

Alternatively, the rotatable member 440 may be formed of a cylinder that is not shown to lift and contract the free end of the shielding plate 410 while being expanded or contracted by hydraulic pressure or air pressure.

Further, the rotary member 440 may be constituted by a rotary motor (not shown) for rotating a fixed end coupled to the hinge 415. [

The blocking plate 410 can automatically open and close the lower part of the rainfall nozzle 300 while being automatically lifted and lowered by the rotating member 440 and can be automatically locked to the frame 100 by the locking member 430 Or the locking can be released.

6, the present invention may further include a surface water supply member 500. [

The surface water supply member 500 is a component for simulating the flow environment of the surface water on the soil slope or slope while flowing water in an adjacent state to the plume 200. [

For example, the surface water supply member 500 may be configured to include a surface water nozzle 510 and a sponge 520 as shown in FIG.

As shown in FIG. 6, the surface water nozzles 510 are formed in a tubular shape and are arranged adjacent to each other across the width of the plume 200 to supply water. A plurality of drain holes 511 are formed along the outer circumferential surface, (511).

As shown in FIG. 6, the sponge 520 is joined with the surface water nozzle 510 wrapped around to form a flow environment of water.

That is, the sponge 520 prevents the water discharged from the drain hole 511 from being scattered while allowing the water to flow down to the surface of the plume 200 or the earth stone as the surface water nozzle 510 is coupled in a state of wrapping the surface water nozzle 510, .

The operation and operation of the present invention including the above-described components will be described.

The user injects water into the plume 200 through the rainfall nozzle 300 in order to test the erosion of soil and slope in a rainfall environment such as heavy rainfall.

At this time, the user manually rotates the closure plate 410 to shield the lower part of the rainfall nozzle 300 or rotate the closure plate 410 while driving the rotation member 440 to shield the lower part of the rainfall nozzle 300 And locks the shielding plate 410 in a shielded state through the engagement of the Velcro fastener 431 and the engagement of the engagement protrusion 433.

Then, the user opens the rainfall nozzle 300 and operates a pump (not shown) to spray water at a predetermined pressure.

At this time, the water initially sprayed from the rainfall nozzle 300 is discharged to the outside of the plume 200 through the drain 420 provided in the cover plate 410.

When the water sprayed from the rainfall nozzle 300 is stabilized to a predetermined pressure, the user releases the locking of the locking member 430 and rotates the blocking plate 410 to the original position to open the lower portion of the rainfall nozzle 300 do.

Accordingly, as the set water is injected into the plume 200, an accurate rainfall environment is created, and the test of the erosion of the earth rock and slope is carried out.

Meanwhile, in order to create a flow environment of the surface water together with the rainfall environment by the rainfall nozzle 300, water is supplied to the surface water nozzle 510 and the water discharged from the surface water nozzle 510 is supplied to the soil stone by the sponge 520 Test soil erosion and slope erosion in the surface water environment by allowing it to flow.

As described above, according to the simulated test apparatus of the present invention, the nozzle shield 400 shields the lower part of the rainfall nozzle 300 so as to be able to open and close, Water can be prevented from being supplied to the plume, so that only the water at the pressure set in the plume 200 can be supplied, thereby realizing an accurate rainfall environment.

More specifically, since the water of the rainfall nozzle 300 is drained to the outside of the plume 200 while the shielding plate 410 constituting the nozzle shield 400 rotates to shield the lower part of the rainfall nozzle 300, The water of the nozzle 300 is not supplied to the plume 200 and when the injection pressure of the rainfall nozzle 300 is stabilized to a predetermined pressure, the shielding plate 410 is opened so that an accurate rainfall environment can be created.

Since the blocking plate 410 is locked with the frame 100 by the Velcro fastener 431 or locked with the blocking projection 433, the blocking plate 410 is fixed in a state of shielding the rainfall nozzle 300 .

In addition, when the actuator 435 for projecting and retracting the locking protrusion 433 is formed, the opening of the rainfall nozzle 300 by the closure plate 410 can be automatically performed.

Also, as the closure plate 410 rotates by the retractor constituting the rotary member 440, the closure of the rainfall nozzle 300 by the closure plate 410 can be automatically performed.

Water is discharged to the plume 200 while the sponge 520 is wound around the surface water nozzle 510 constituting the surface water supplying member 500. The water is supplied to the plume 200 The flow environment of the surface water can be simulated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

100: Frame 200: Plume
210: Hinge 220: Hoist
230: elevator 300: rainfall nozzle
400: Nozzle shield 410: Closing plate
411: Closing plate frame 412: Cladding film
420: drain 430: locking member
431: Velcro fastener 433:
435: actuator 440: rotating member
500: surface water supply member 510: surface water nozzle
511: Drain 520: Sponge

Claims

frame;
At least one plume that is angularly coupled to the frame to provide a ramp of debris or slope erosion;
A plurality of rainfall nozzles installed at an upper portion of the plume and simulating a rainfall environment while spraying water of a set pressure to the plume; And
And a nozzle shield which is openably and closably provided at a lower portion of the rainfall nozzle and discharges the water sprayed from the rainfall nozzle to the outside of the plume while blocking the water sprayed from the rainfall nozzle until the water sprayed from the rainfall nozzle is sprayed at a predetermined pressure,
Wherein the nozzle shield comprises:
A shielding plate installed at a lower portion of the rainfall nozzle with a fixed end hinged to the frame and opening or shielding a lower portion of the rainfall nozzle while the free end is pivotally rotated about the hinge;
Guiding means for guiding the water of the rainfall nozzle blocked by the shielding of the closure plate to the outer periphery of the plume; And
And a locking member for releasably securing the free end of the closure plate to the frame while locking the closure plate in a shielded state.

delete

The method according to claim 1,
Wherein,
A closure plate frame hinged to the frame and having a fixed end and a free end; And
And a shielding membrane of a waterproof material which is coupled to the shielding plate frame and blocks water sprayed from the rainfall nozzle.

The method according to claim 1,
Wherein the guide means comprises:
And a drain communicably provided in the closure plate for draining the water of the rainfall nozzle to an outer periphery of the plume.

The method according to claim 1,
Wherein the guide means comprises:
Wherein the shielding plate guides the water of the rainfall nozzle to the outside of the plume through an inclined surface while shielding the lower part of the rainfall nozzle in an inclined state.

The method according to claim 1,
Wherein the locking member comprises:
And a Velcro fastener provided on the frame and the cover plate in a male and female form and fixed to each other and separated by pressing.

The method according to claim 1,
Wherein the locking member comprises:
And a locking protrusion provided on the frame so as to protrude and retract and to lock the cover plate while being caught by the free end of the cover plate.

The method of claim 7,
Wherein the locking member comprises:
And an actuator for controlling the locking of the closure plate by providing a moving force to the closure protrusion to project and retract the closure protrusion, and to control the locking of the closure plate.

The method according to claim 1,
Wherein the nozzle shield comprises:
Further comprising: a rotation member for rotating the free end of the cover plate while providing a rotational force to the cover plate; and a rotation member for rotating the free end of the cover plate.

The method of claim 9,
The rotating member includes:
And a retractor for rotating the cover plate while pulling the free end of the cover plate in a state fixed to the frame.

The method according to claim 1,
And a surface water supply member for separating the rain water from the rain water and supplying water to the float in a state adjacent to the floum to simulate a flow environment of the surface water on the ground water. Test equipment.

The method of claim 11,
The surface water supplying member
A tubular surface water nozzle disposed adjacent to the plume across the width of the plume and having a plurality of drain holes formed along an outer circumferential surface thereof to discharge water through the drain hole; And
And a sponge coupled with the surface water nozzle in a wrapped state to prevent dispersion of water discharged from the drain hole.