CN-122016603-A - Soil body seepage flow inner erosion transparent soil model test device

CN122016603ACN 122016603 ACN122016603 ACN 122016603ACN-122016603-A

Abstract

The invention relates to the technical field of soil mass seepage and discloses a device which comprises an angle-adjustable bearing frame, wherein the right side of the top of the angle-adjustable bearing frame is fixedly connected with a hinge seat, the hinge seat is hinged with a fixed connection bracket through a rotating shaft, the left side of the top of the angle-adjustable bearing frame is fixedly connected with a servo electric cylinder, and the moving end of the servo electric cylinder is rotatably connected with a moving connection bracket through a rotating shaft hinge seat. The soil body seepage internal erosion transparent soil model test device plays roles in setting and maintaining any inclination angle of a model box in a high-precision, stepless and automatic manner before or during a test by matching and setting an angle-adjustable bearing frame, a hinged seat, a servo electric cylinder, a movable connecting bracket, a limiting sliding rod, a buffer spring, an adjusting limiting frame and a digital angle meter, provides core geometric conditions for simulating complex seepage fields in actual engineering such as side slopes, dykes and the like, and realizes accurate, stable and automatic adjustment of the inclination angle of the model.

Inventors

LIU LEILEI
HUANG JIN
WANG SIHAI
LIU XIAOFENG
BAI SHI
TAN QIYING
WANG LIN
MA PEIFENG
CAI BINBIN
LU PANPAN
Ge Linrong

Assignees

江苏工程职业技术学院
智性纤维复合加固南通有限公司

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (9)

1. The utility model test device for soil mass seepage internal erosion transparent soil model comprises an angle-adjustable bearing frame (1), and is characterized in that a hinge seat (2) is fixedly connected to the right side of the top of the angle-adjustable bearing frame (1), a fixed connection support (3) is hinged to the hinge seat (2) through a rotating shaft, a servo electric cylinder (4) is fixedly connected to the left side of the top of the angle-adjustable bearing frame (1), a movable connection support (5) is rotatably connected to the movable end of the servo electric cylinder (4) through the hinge seat of the rotating shaft, a limit slide rod (6) is arranged in the movable connection support (5) in a penetrating manner, a buffer spring (7) is sleeved on one side of the limit slide rod (6) on the movable connection support (5), both ends of the limit slide rod (6) are fixedly connected with an adjusting limit frame (8), a transparent soil model test box (9) is fixedly connected to the top of the adjusting limit frame (8), a front observation plate of the transparent soil model test box (9) is a high-level glass plate, a left side plate and a light-proof liquid-permeable test box (10) is uniformly embedded in the left side plate and is provided with a light-permeable test box (10) and is provided with a light-permeable sealing cover, the inside of the seepage liquid storage tank is fixedly connected with a filter screen (11), a peristaltic pump (12) is fixedly arranged at the top of the seepage liquid storage tank (10), a water suction pipe of the peristaltic pump (12) stretches into the inner bottom of the seepage liquid storage tank (10), and a water outlet pipe of the peristaltic pump penetrates through and is fixed on the side wall of the transparent soil model test box (9) in a sealing mode and is used for conveying seepage liquid into the box.
2. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein the top edge of the transparent soil model test box (9) is rotatably connected with a protective top cover (13) through a damping rotating shaft, a high-definition industrial camera (14) is fixedly arranged in the middle of the inner top wall of the protective top cover (13), and waterproof light supplementing lamps (15) are arranged on two sides of the protective top cover.
3. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein the inner side wall of the transparent soil model test box (9) is fixedly connected with a clamping frame (16), and a porous composite water permeable plate (17) is detachably clamped and fixed on the clamping frame (16).
4. The soil seepage internal erosion transparent soil model test device according to claim 1, wherein a water outlet is arranged at the lower right side of the transparent soil model test box (9) and is fixedly connected with a soil seepage guide pipe (18).
5. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein the right side of the angle-adjustable bearing frame (1) is detachably connected with a detachable erosion product collecting disc (20) through a spring buckle (19), an experimental electronic scale (21) is fixedly installed on the detachable erosion product collecting disc (20), a soil body seepage collecting cylinder (22) for receiving muddy water flowing out of the soil body seepage conduit (18) is placed on a weighing platform of the experimental electronic scale (21), and the servo electric cylinder (4), the peristaltic pump (12), the high-definition industrial camera (14), the waterproof light supplementing lamp (15), the LED array light source plate and the experimental electronic scale (21) are all electrically connected with a central control system, the soil body seepage collecting cylinder (22) is made of transparent materials, and seepage erosion products collected in the soil body seepage collecting cylinder can be used for subsequent turbidity water body, particle grading or material content analysis.
6. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein a digital angle meter (23) is fixedly arranged on the outer side of the bottom of the transparent soil model test box (9) and used for displaying the inclination angle of the test box in real time.
7. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein the porous composite water permeable plate (17) is composed of a base plate with a clamping edge, a high-precision stainless steel filter screen paved on the base plate and a belt Kong Yaban pressed on the filter screen through a clamping groove combination, and is integrally clamped in the clamping frame (16), and the bottom of the porous composite water permeable plate (17) is clamped with an inner bottom wall groove of a transparent soil model test box (9).
8. The soil body seepage internal erosion transparent soil model test device according to claim 1, wherein the servo electric cylinder (4), the peristaltic pump (12), the high-definition industrial camera (14), the waterproof light supplementing lamp (15), the LED array light source plate and the experimental electronic scale (21) are electrically connected with a central control system.
9. The soil body seepage internal erosion transparent soil model test device is characterized by comprising the following steps: 1) Filling prepared transparent soil or conventional soil samples into the transparent soil model test box (9), sliding and translating the prepared transparent soil or conventional soil samples outside the limiting slide rod (6) through a movable connecting bracket (5) and a buffer spring (7) by telescopic driving of the servo electric cylinder (4), and arranging a movable track in the adjusting limiting frame (8) to enable the test box to stably rotate around a rotating shaft of the hinge seat (2), so that the test box is adjusted and fixed at a preset inclination angle; 2) The system initialization comprises the steps of closing a protective top cover (13), starting an LED array light source plate and a waterproof light supplementing lamp (15) to provide uniform illumination, placing a soil seepage collecting cylinder (22) on an experimental electronic scale (21) and ensuring that the soil seepage collecting cylinder is aligned with an outlet of a soil seepage conduit (18), and setting the flow of a peristaltic pump (12) and shooting parameters of a high-definition industrial camera (14) through a central control system; 3) Starting a peristaltic pump (12), pumping seepage liquid from a liquid storage tank (10) into a soil sample in a test box (9), and simulating a seepage process, and synchronously triggering a high-definition industrial camera (14) by a central control system to perform continuous or timing image acquisition and recording real-time mass data of a soil seepage collection cylinder (22) displayed by an experimental electronic scale (21); 4) The process observation and data recording, namely, observing the migration of particles in the soil body and the formation and development of an erosion channel in real time through an image transmitted back by a high-definition industrial camera (14), wherein the data of an experimental electronic scale (21) are used for calculating the real-time loss rate and the accumulated mass of erosion products; 5) Parameter adjustment and multi-station test, namely, in the test process or among different test groups, changing the stroke of a servo electric cylinder (4) through a central control system to adjust the inclination angle of a model box, and/or changing the flow of a peristaltic pump (12) to adjust the seepage speed, and simulating the erosion process under the combined working condition of various hydraulic boundaries and geometric boundaries; 6) And comprehensively analyzing the starting mechanism, development mode and dip angle effect of erosion in soil mass seepage by combining erosion development image sequences and accurate mass loss data acquired under different dip angles and seepage speed conditions.

Description

Soil body seepage flow inner erosion transparent soil model test device Technical Field The invention relates to the technical field of soil seepage, in particular to a model test device for erosion transparent soil in soil seepage. Background Erosion in soil seepage is a common progressive damage phenomenon in geotechnical engineering, mainly refers to that fine particles in the soil are migrated and taken away under the seepage effect, so that a pore structure is gradually enlarged, seepage permeability is changed, and finally the soil structure is possibly unstable. The mechanism is widely applied to dykes, roadbeds, slopes and underground engineering, and the deep research on the influence of the mechanism on engineering safety is important. At present, an indoor physical model test is a main means for researching the problem. However, the traditional test device has obvious limitations that most device models are of fixed upright structures, non-horizontal seepage fields in actual slopes or inclined soil layers cannot be simulated, deviation exists between test working conditions and engineering reality, the traditional angle-adjustable device is low in precision and poor in stability, the angle is difficult to keep constant in the test process, illumination is uneven or observation visual angles are limited when the conventional device is used for realizing visualization of an erosion process, accurate capture of the erosion channel sprouting and expanding process is affected, seepage control is dependent on a fixed water head, and precise and dynamic control of flow or pressure is difficult to realize. Aiming at the problems, particularly the situations of insufficient simulation of inclined seepage working conditions and rough control of test conditions, the development of an integrated test device which can accurately adjust and maintain any model inclination angle, realize accurate control of seepage parameters and integrate high-quality panoramic observation and real-time loss metering functions is needed to simulate and research soil mass seepage internal erosion under complex boundary conditions more truly and finely, so that the soil mass seepage internal erosion transparent soil model test device is provided. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a soil body seepage internal erosion transparent soil model test device which has the advantages of high-precision automatic adjustment and maintenance of inclination angles, flexible programmable control of seepage parameters (flow speed/flow), panoramic high-definition visual synchronous recording of erosion process, real-time dynamic accurate measurement of erosion loss, convenient integral modularization operation and the like, and solves the problems that the traditional device is difficult to truly simulate an inclined seepage field, the seepage boundary condition is controlled to be rough, the internal erosion process is limited in observation and cannot be strictly synchronous with quantitative data, and the operation is complicated and the adaptability is poor. (II) technical scheme In order to achieve the purposes of high-precision automatic adjustment and maintenance of the inclination angle, flexible programmable control of seepage parameters (flow speed/flow), panoramic high-definition visual synchronous recording of erosion process, real-time dynamic accurate measurement of erosion loss amount and convenient integral modularized operation, the invention provides the technical scheme that the soil mass seepage internal erosion transparent soil model test device comprises an angle-adjustable bearing frame, wherein the right side of the top of the angle-adjustable bearing frame is fixedly connected with a hinged seat, the hinged seat is hinged with a fixed connecting bracket through a rotating shaft, the left side of the top of the angle-adjustable bearing frame is fixedly connected with a servo electric cylinder, the movable end of the servo electric cylinder is rotatably connected with a movable connecting bracket through the hinged seat of the rotating shaft, a limit slide rod is penetrated in the movable connecting bracket, a buffer spring is sleeved on one side of the limit slide rod, both ends of the limit slide rod are fixedly connected with an adjustment limit frame, the fixed connecting bracket and the top of the adjustment limit frame are jointly fixedly connected with a transparent soil model test box, the front observation plate of the transparent soil model test box is a high-level glass plate, the left side plate and the transparent soil liquid suction side plate are fixedly connected with a peristaltic pump, the LED is fixedly arranged on the side plate and the side plate is fixedly connected with the side wall plate of the LED, the LED is fixedly arranged on the side plate and the side plate is fixedly connected with the side wall plate, t