CN212031474U - Rock slope slippage test system - Google Patents

Rock slope slippage test system Download PDF

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CN212031474U
CN212031474U CN202020543683.6U CN202020543683U CN212031474U CN 212031474 U CN212031474 U CN 212031474U CN 202020543683 U CN202020543683 U CN 202020543683U CN 212031474 U CN212031474 U CN 212031474U
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slope
rock
test system
base
bottom plate
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CN202020543683.6U
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何春梅
胡浩
梁雪婷
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Neijiang Normal University
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Neijiang Normal University
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Abstract

The utility model discloses a rock slope slippage test system, which comprises a base, wherein the base is provided with an installation mechanism and a test mechanism, the test mechanism comprises a bottom plate and baffles, a slope body is arranged between the two baffles, a circulating rainfall mechanism is arranged above the slope body, and one end of the bottom plate is provided with a chute; the slope body is from outer to interior for overlying rock layer, weak soil intermediate layer and basement rock layer in proper order, is provided with the collecting vat on the base, and filtering mechanism is installed to the collecting vat bottom, and filtering mechanism and circulation rainfall mechanism communicate. The utility model provides a rock slope slippage test system, can simulate the bedding rock slope slippage motion in nature in the indoor experiment, for research side slope destruction process and mechanism; the sliding motion of bedding rock slopes of different combined structural surfaces in the nature can be simulated; and the utility model discloses corresponding detecting instrument can be adopted and corresponding destructive test data is obtained for the deep research to the destruction process of rock matter side slope.

Description

Rock slope slippage test system
Technical Field
The utility model relates to a ground mechanics experimental apparatus technical field especially relates to a rock matter slope test system that slides.
Background
With the rapid development of economic construction in China, particularly the implementation of the western major development strategy, the construction of highways, railways and bridges in the southwest mountain areas is rapidly developed, engineering activities are continuously increased, the geological environment is more and more strongly disturbed, landslide disasters, particularly large landslide disasters, are more and more frequent, and the caused economic loss and casualties are also increased continuously. Compared with the soil slope, the rock slope has a large number of discontinuous structural surfaces such as joints, cracks and the like, and the failure mode and mechanism of the rock slope are widely concerned. The damage types of the rock slopes are various, the landslide type with the largest proportion in large landslides which occur historically in China is bedding rock landslide, and the control sliding surface of the landslide is the most common in a weak interlayer.
The development universality and disaster severity of bedding rock landslide in China determine that the cause mechanism research of bedding rock landslide becomes a research hotspot more and more, an indoor simulation test is an important means for disaster research, and the lack of a bedding rock slope slip simulation system further limits the development of instability mechanism and mechanical response research of bedding slope.
SUMMERY OF THE UTILITY MODEL
Problem and situation to prior art existence, the utility model aims at providing a rock matter side slope test system that slides can be used for testing the stability of bedding rock matter side slope.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a rock slope slippage test system, which comprises a base, wherein the base is provided with an installation mechanism and a test mechanism, the installation mechanism comprises an installation seat and a jack which are fixedly installed on the base, the test mechanism comprises a bottom plate which is obliquely arranged and baffles which are fixedly installed on two sides of the bottom plate, a slope body is arranged between the two baffles, and a circulating rainfall mechanism is arranged above the slope body; the bottom of the upper end of the bottom plate is hinged with the jack, the bottom of the lower end of the bottom plate is hinged with the mounting seat, and a sliding groove is formed in one end, close to the jack, of the bottom plate; the slope body is sequentially provided with an overlying rock layer, a soft soil interlayer and a bedrock layer from outside to inside, the bottom of the bedrock layer is fixedly connected with a sliding block, and the sliding block is matched with the sliding groove; a collecting tank is arranged on the base, and one end of the bottom plate close to the mounting seat is flush with the notch of the collecting tank; and a filtering mechanism is installed at the bottom of the collecting tank and communicated with the circulating rainfall mechanism.
Preferably, more than two groups of monitoring sensors are arranged in the soft soil interlayer, and each group of monitoring sensors comprises a pore water pressure meter and a pressure meter.
Preferably, the circulating rainfall mechanism comprises a circulating pump, a water supply pipe connected with a water outlet of the circulating pump, and a shower nozzle installed at the tail end of the water supply pipe, wherein the shower nozzle is positioned above the slope body, and a flowmeter is installed on the water supply pipe.
Preferably, the filtering mechanism comprises a water inlet pipe fixedly arranged on the collecting tank, and a filter bowl and a connecting cylinder which are in threaded connection with the water inlet pipe; the filter screen is installed to the one end that the inlet tube is close to the collecting vat, the filter bowl sets up in the connecting cylinder, the connecting cylinder bottom is connected with the outlet pipe, the outlet pipe end with the circulating pump water inlet is connected.
Preferably, the water supply pipe is a hard pipe.
Preferably, a video recording device is arranged outside the baffle plate, and the video recording device is fixedly installed on the water supply pipe.
Preferably, the baffle is a transparent baffle.
Preferably, the overburden stratum and the basement stratum are concrete layers; the soft soil interlayer is a sand layer or a clay layer.
The utility model discloses a following technological effect: the utility model provides a rock slope slippage test system, can simulate the bedding rock slope slippage motion in nature in the indoor experiment, for research side slope destruction process and mechanism; by means of sectional design of the slope surface of the slope body and detachable installation of the foundation rock layer, sliding movement of bedding rock slopes of different combined structural surfaces in nature can be simulated, and practicability of the test system is improved; moreover, the utility model can adopt corresponding detecting instruments to obtain corresponding destructive test data, and is used for deep research on the destructive process of the rock slope; the utility model discloses a water supply system adopts the circulation water supply mode, continues to use in filtering the water in the collecting vat through filter mechanism and pumping once more to the gondola water faucet shower nozzle in, has prolonged the clearance cycle of collecting vat, has practiced thrift water, convenient and practical.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of the rock slope slippage test system of the present invention;
FIG. 2 is a schematic view of the separation of the ramp body from the base plate;
FIG. 3 is a schematic structural view of a base plate;
FIG. 4 is a schematic cross-sectional structure of a slope body;
FIG. 5 is a schematic view of the filter mechanism;
wherein, 1 base, 2 mount pads, 3 jack, 4 bottom plates, 5 baffles, 6 spouts, 7 overlying strata, 8 soft soil intermediate layers, 9 basement rock stratum, 10 sliders, 11 monitoring sensors, 12 collecting tanks, 13 delivery pipes, 14 shower nozzles, 15 video recording devices, 16 inlet pipes, 17 filter cups, 18 filter screens, 19 circulating pumps, 20 flow meters, 21 connecting cylinders, 22 outlet pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-5, the utility model provides a rock slope slippage test system, including base 1, be provided with installation mechanism and test mechanism on base 1, installation mechanism includes mount pad 2 and jack 3 of fixed mounting on base 1, test mechanism includes bottom plate 4 and the baffle 5 of fixed mounting in bottom plate 4 both sides that the slope set up, baffle 5 is transparent baffle, two the baffle 5 is arranged between the slope body, the baffle 5 outside is provided with video recording device 15, be provided with circulating rainfall mechanism above the slope body; the circulating rainfall mechanism comprises a circulating pump 19, a water supply pipe 13 connected with a water outlet of the circulating pump 19 and a shower head 14 arranged at the tail end of the water supply pipe 13, the shower head 14 is positioned above the slope body, a flowmeter 20 is arranged on the water supply pipe 13, the water supply pipe 13 is a hard pipe, and the video recording device 15 is fixedly arranged on the water supply pipe 13; the bottom of the upper end of the bottom plate 4 is hinged with the jack 3, the bottom of the lower end of the bottom plate 4 is hinged with the mounting seat 2, and one end, close to the jack 3, of the bottom plate 4 is provided with a sliding groove 6; the slope body is sequentially provided with an overlying rock layer 7, a soft soil interlayer 8 and a base rock layer 9 from outside to inside, the overlying rock layer 7 and the base rock layer 9 are concrete layers, the soft soil interlayer 8 is a sand layer or a clay layer, the bottom of the base rock layer 9 is fixedly connected with a sliding block 10, and the sliding block 10 is matched with the sliding groove 6; a collecting tank 12 is arranged on the base 1, and one end of the bottom plate 4 close to the mounting seat 2 is flush with a notch of the collecting tank 12; and a filtering mechanism is arranged at the bottom of the collecting tank 12 and is communicated with the circulating rainfall mechanism.
The filtering mechanism comprises a water inlet pipe 16 fixedly arranged on the collecting tank 12, a filter bowl 17 in threaded connection with the water inlet pipe 16 and a connecting cylinder 21; inlet tube 16 installs in collecting vat 12 bottom high position to prevent to wash down silt in the experimental engineering and block up inlet tube 16, inlet tube 16 is close to the one end of collecting vat 12 and installs filter screen 18, utilizes filter screen 18 to carry out prefiltration, filter bowl 17 sets up in the connecting cylinder 21, utilizes filter bowl 17 to carry out the secondary filter, guarantees that the water that gets into circulation rainfall mechanism can not block up gondola water faucet shower nozzle 14, connecting cylinder 21 bottom is connected with outlet pipe 22, outlet pipe 22 terminal with 19 water inlets of circulating pump are connected. When in use, the connecting cylinder 21 and the filter bowl 17 need to be removed periodically for cleaning, so as to ensure that the test water can be supplied normally.
In order to better obtain various test data, more than two groups of monitoring sensors 11 are arranged in the soft soil interlayer 8, and each group of monitoring sensors 11 comprises a pore water pressure meter and a pressure meter.
When the rock slope slippage test system provided by the utility model is used, firstly, according to the structural condition of the rock slope at the position of the engineering project and the similarity ratio of the indoor model test, the various structural bodies and the weak interlayer 8 which form the slope are subjected to similar simulation, and the model materials which meet the physical and mechanical properties similar to those of the prototype materials and are of the various structural bodies and the weak interlayer 8 are prepared; then, the jack 3 is utilized to adjust the gradient of the bottom plate 4 to the gradient required by the test, the sliding chute 6 on the bottom plate 4 is utilized to fix the basement layer 9 on the bottom plate 4, and various prepared structures and model materials of the weak interlayer 8 are built layer by layer according to the simulation range and the topographic characteristics of the rock slope until the manufacture of a slope model is completed to form a slope body; then, a certain amount of test water is poured into the collecting tank 12, the circulating pump 19 is started, the shower nozzle 14 is used for simulating rainfall, water flowing out of the shower nozzle 14 flows into the collecting tank 12 again through the slope body for recycling, data of the flow meter 20 and each monitoring sensor 11 are recorded, the condition of the slope body is observed through the baffle 5 until the slope is unstable integrally, and finally, comprehensive evaluation is carried out on the stability of the slope according to the test data.
The utility model provides a rock slope slippage test system, can simulate the bedding rock slope slippage motion in nature in the indoor experiment, for research side slope destruction process and mechanism; by means of sectional design of the slope surface of the slope body and detachable installation of the foundation rock layer, sliding movement of bedding rock slopes of different combined structural surfaces in nature can be simulated, and practicability of the test system is improved; and the utility model discloses corresponding detecting instrument can be adopted and corresponding destructive test data is obtained for the deep research to the destruction process of rock matter side slope.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims (8)

1. A rock slope slippage test system is characterized by comprising a base (1), wherein an installation mechanism and a test mechanism are arranged on the base (1); the mounting mechanism comprises a mounting seat (2) and a jack (3) which are fixedly mounted on the base (1); the testing mechanism comprises a bottom plate (4) which is obliquely arranged and baffle plates (5) which are fixedly arranged on two sides of the bottom plate (4), a slope body is arranged between the two baffle plates (5), and a circulating rainfall mechanism is arranged above the slope body; the bottom of the upper end of the bottom plate (4) is hinged with the jack (3), the bottom of the lower end of the bottom plate (4) is hinged with the mounting seat (2), and a sliding groove (6) is formed in one end, close to the jack (3), of the bottom plate (4); the slope body is sequentially provided with an overlying rock layer (7), a soft soil interlayer (8) and a base rock layer (9) from outside to inside, the bottom of the base rock layer (9) is fixedly connected with a sliding block (10), and the sliding block (10) is matched with the sliding groove (6); a collecting groove (12) is formed in the base (1), and one end, close to the mounting seat (2), of the bottom plate (4) is flush with the notch of the collecting groove (12); and a filtering mechanism is arranged at the bottom of the collecting tank (12), and is communicated with the circulating rainfall mechanism.
2. The lithology slope slip test system of claim 1, characterized in that: the soft soil interlayer (8) is internally provided with more than two groups of monitoring sensors (11), and each group of monitoring sensors (11) comprises a pore water pressure meter and a pressure meter.
3. The lithology slope slip test system of claim 1, characterized in that: the circulating rainfall mechanism comprises a circulating pump (19), a water supply pipe (13) connected with a water outlet of the circulating pump (19) and a shower nozzle (14) installed at the tail end of the water supply pipe (13), the shower nozzle (14) is located above the slope body, and a flowmeter (20) is installed on the water supply pipe (13).
4. The rocky slope slip test system according to claim 3, wherein: the filtering mechanism comprises a water inlet pipe (16) fixedly arranged on the collecting tank (12), a filter bowl (17) in threaded connection with the water inlet pipe (16) and a connecting cylinder (21); one end of the water inlet pipe (16) close to the collecting tank (12) is provided with a filter screen (18), the filter bowl (17) is arranged in the connecting cylinder (21), the bottom of the connecting cylinder (21) is connected with a water outlet pipe (22), and the tail end of the water outlet pipe (22) is connected with a water inlet of the circulating pump (19).
5. The rocky slope slip test system according to claim 3, wherein: the water supply pipe (13) is a hard pipe.
6. The rocky slope slip test system according to claim 5, wherein: and a video recording device (15) is arranged on the outer side of the baffle (5), and the video recording device (15) is fixedly arranged on the water supply pipe (13).
7. The lithology slope slip test system of claim 1, characterized in that: the baffle (5) is a transparent baffle.
8. The lithology slope slip test system of claim 1, characterized in that: the overburden rock layer (7) and the basement rock layer (9) are concrete layers; the soft soil interlayer (8) is a sand layer or a clay layer.
CN202020543683.6U 2020-04-14 2020-04-14 Rock slope slippage test system Active CN212031474U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323561A (en) * 2020-04-14 2020-06-23 内江师范学院 Rock slope slippage test system
CN113607927A (en) * 2021-10-08 2021-11-05 四川藏区高速公路有限责任公司 Simulation test device for rockfall slope instability mechanism under rainfall condition
CN114518223A (en) * 2022-01-21 2022-05-20 广东省有色矿山地质灾害防治中心 Model test device for measuring stability safety coefficient of rock slope
CN114624421A (en) * 2022-05-17 2022-06-14 四川省公路规划勘察设计研究院有限公司 Simulation test device for rock landslide induced by strong rainfall

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111323561A (en) * 2020-04-14 2020-06-23 内江师范学院 Rock slope slippage test system
CN113607927A (en) * 2021-10-08 2021-11-05 四川藏区高速公路有限责任公司 Simulation test device for rockfall slope instability mechanism under rainfall condition
CN114518223A (en) * 2022-01-21 2022-05-20 广东省有色矿山地质灾害防治中心 Model test device for measuring stability safety coefficient of rock slope
CN114624421A (en) * 2022-05-17 2022-06-14 四川省公路规划勘察设计研究院有限公司 Simulation test device for rock landslide induced by strong rainfall
CN114624421B (en) * 2022-05-17 2022-08-12 四川省公路规划勘察设计研究院有限公司 Simulation test device for inducing rock landslide by strong rainfall

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