CN112681276A - Monitoring system and method for determining maximum rainfall infiltration depth of lower hollyhock soil slope - Google Patents
Monitoring system and method for determining maximum rainfall infiltration depth of lower hollyhock soil slope Download PDFInfo
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- CN112681276A CN112681276A CN202011491132.0A CN202011491132A CN112681276A CN 112681276 A CN112681276 A CN 112681276A CN 202011491132 A CN202011491132 A CN 202011491132A CN 112681276 A CN112681276 A CN 112681276A
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Abstract
The invention provides a monitoring system and a method for determining the maximum rainfall infiltration depth of a lower sand slope, wherein the system comprises the following steps: the rainfall monitoring device comprises a water content sensor, an automatic rainfall monitor, a solar panel, a box body, a remote data transmission module and a monitoring data early warning and forecasting platform. The method comprises the following steps: extracting data of five water content sensors at the top of a lower hollyhock side slope, the middle upper part of a slope body, the middle lower part of the slope body and the slope toe through a data early warning and forecasting platform, and drawing a change curve of the data of each water content sensor with time and a change curve of rainfall data with time; analyzing data of five water content sensors at the top, the middle upper part, the middle lower part and the foot of a slope of the lower hollyhock soil slope to obtain the maximum rainfall infiltration depth range of each position; and connecting the maximum rainfall infiltration depth of each position to obtain a maximum rainfall infiltration depth curve of the lower hollyhock soil slope. The method can accurately obtain the maximum rainfall infiltration depth curve of the lower hollyhock soil slope.
Description
Technical Field
The invention relates to the technical field of monitoring of side slope soil infiltration capacity, in particular to a monitoring system and a monitoring method for determining the maximum rainfall infiltration depth of an underlying soil side slope.
Background
The lower Shu soil is special sedimentary soil formed in the middle and late renewals of the world, is widely distributed in the middle and lower reaches of the Yangtze river, and is distributed in hills, low mountains, river terraces, plains of the Yangtze delta, east China sea continents and the like in the area of the Ningzhen mountains. In rainy seasons every year, landslides occur frequently in regions where the lower hollyhock soil is distributed, and the life and property safety of residents, factory workers and tourists around the landslides is seriously influenced. Therefore, in the background of the frequent global extreme climate, the stability of the slope of the subsoil under the action of rainfall must be considered to be of sufficient importance.
In general, the groundwater level in a lower sand slope is low, and rainfall infiltration is a major source of groundwater. In order to reasonably analyze the instability mechanism of the soil slope under rainfall action, the maximum rainfall infiltration depth is one of the key problems, however, a means for testing the maximum rainfall infiltration depth of the soil slope is still lacked at present, so that a monitoring system and an evaluation method for the maximum rainfall infiltration depth of the soil slope are urgently needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a monitoring system and a monitoring method for determining the maximum rainfall infiltration depth of an under-actuated soil side slope.
In order to achieve the above object, the present invention provides the following technical solutions, and the present invention provides a monitoring system for determining a maximum rainfall infiltration depth of a lower hollyhock slope, including: the system comprises a water content sensor, an automatic rainfall monitor, a solar panel, a box body, a remote data transmission module and a monitoring data early warning and forecasting platform;
the moisture content sensor is connected with the data transmission module through a moisture content sensor cable; the rainfall automatic monitor is connected with the data transmission module; the data transmission module is connected with the monitoring data early warning and forecasting platform;
the water content sensor is used for detecting the water content of the lower hollyhock soil to obtain water content data;
the rainfall automatic monitor is used for automatically collecting and storing rainfall data;
the solar panel is used for supplying power to the monitoring system;
the data transmission module is used for sending the water content data and the rainfall data to a monitoring data early warning and forecasting platform;
the monitoring data early warning and forecasting platform is used for displaying change curves of water content and rainfall data and time.
Preferably, the moisture content sensor is buried in the lower hollyhock soil layer and is arranged on the soil wall by arranging a moisture content sensor probe.
Preferably, the water content sensors are respectively arranged at the top of the lower hollyhock side slope, the middle upper part of the slope body, the middle lower part of the slope body and the bottom of the slope.
Preferably, the automatic rainfall monitor is arranged at the top of a lower hollywood side slope.
Preferably, one end of the case is capable of being opened and closed.
Preferably, the remote data transmission module is placed inside the box body.
Preferably, the solar panel is arranged on the top of the box body.
Preferably, the monitoring data early warning and forecasting platform comprises a computer or a mobile phone terminal.
The monitoring method for determining the maximum rainfall infiltration depth of the lower sand slope comprises the following steps:
s1, extracting data of five water content sensors at the top, middle upper part, middle lower part and foot of the lower hollyhock slope through the data early warning and forecasting platform, and drawing a change curve of the data of each water content sensor with time and a change curve of rainfall data with time;
s2, analyzing data of the five water content sensors at the top, the middle upper part, the middle lower part and the foot of the lower hollyhock side slope to obtain the maximum rainfall infiltration depth range of each position;
and S3, connecting the maximum rainfall infiltration depth at each position to obtain a maximum rainfall infiltration depth curve of the lower-sand side slope.
Preferably, the calculation process of the maximum rainfall infiltration depth range is as follows: if the data of the water content sensor fluctuates greatly along with the change of time, the rainfall infiltration depth is greater than the embedding depth of the water content sensor; and if the data of the water content sensor is not fluctuated basically along with the change of time, the rainfall infiltration depth is less than the embedding depth of the water content sensor.
The invention discloses the following technical effects:
according to the method, the moisture content sensors are embedded at different slope positions and depths of the lower hollyhock soil slope, and data change of the moisture content sensors under the action of rainfall is analyzed, so that the maximum rainfall infiltration depth of the lower hollyhock soil slope is obtained, the change rule of the moisture content of the lower hollyhock soil slope in the rainfall infiltration process can be comprehensively monitored, wireless transmission of monitoring data can be realized, the continuity of the data is ensured, the maximum rainfall infiltration depth curve of the lower hollyhock soil slope can be accurately obtained, a theoretical basis is provided for the design of the rainstorm working condition of the lower hollyhock soil slope, and the method has great engineering significance.
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 it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural view of a system for monitoring the maximum rainfall infiltration depth of a lower sand slope, in which: 1. a water content sensor; 2. a Sichuan soil layer is arranged; 3. bedrock; 4. an automatic rainfall detector; 5. a solar panel; 6. a box body; 7. a remote data transmission module; 8. detecting a data early warning and forecasting platform;
FIG. 2 is a schematic diagram of the embedding of a moisture content sensor according to an embodiment of the present invention, in which: 9. a water content sensor cable; 10. a probe; 11. probing the rear soil wall of the groove;
FIG. 3 is a schematic diagram of the change of water content with time according to the embodiment of the present invention, wherein: FIG. 3(a) is a schematic view of a change curve of water content at the top of a lower Shu soil slope along with time; FIG. 3(b) is a schematic view of a change curve of the water content at the middle upper part of the lower hollyhock soil slope body along with time; FIG. 3(c) is a schematic view of a change curve of the water content of the lower part of the lower hollyhock side slope body along with time; FIG. 3(d) is a schematic view of a change curve of the water content at the toe of the lower hollyhock soil slope with time;
fig. 4 is a schematic diagram of the maximum rainfall infiltration depth range in the embodiment of the present invention, wherein: 12. the maximum rainfall infiltration depth range of the lower hollyhock soil side slope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention provides a monitoring system for determining the maximum rainfall infiltration depth of a lower hollyhock slope, which comprises a water content sensor 1, an automatic rainfall monitor 4, a solar panel 5, a box body 6, a remote data transmission module 7 and a monitoring data early warning and forecasting platform 8;
the water content sensor 1 is used for monitoring the water content of the lower hollyhock soil 2 to obtain water content data;
the rainfall automatic monitor 4 is used for automatically collecting and storing rainfall data;
the solar panel 5 is used for supplying power to the system;
the data transmission module 7 is used for sending the water content and rainfall data to the monitoring data early warning and forecasting platform 8;
the monitoring data early warning and forecasting platform 8 is used for displaying the change curves of the water content and rainfall data and time.
The water content sensors 1 are respectively arranged at the top of a slope, the middle upper part of a slope body, the middle lower part of the slope body and the toe of the slope of a side slope of the lower hollyhock soil, and five water content sensors are embedded in each position.
As shown in fig. 2, the burying of the moisture content sensor 1 is carried out by adopting a manual hole digging method, the hole digging depth is slightly larger than 5m, the moisture content sensor probes 10 at the top of the slope, the middle upper part of the slope, the middle lower part of the slope and the toe of the lower hollyhock slope are respectively inserted into soil walls 11 at positions 1m, 2m, 3m, 4m and 5m away from the surface of the corresponding slope, meanwhile, each moisture content sensor cable 9 is led out of an orifice, the excavated raw soil is backfilled to the orifice of the hole, and finally, each moisture content cable 9 at each position is connected to a remote data transmission module 7, so that moisture content data can be wirelessly transmitted to a monitoring data early warning platform 8 in real time.
Rainfall automatic monitor 4 arranges in the top of a slope of lower hollywood side slope, and this rainfall automatic monitor has rainfall's automatic acquisition and long-term solid state storage function, inserts rainfall automatic monitor 4 to remote data transmission module 7 for rainfall data can be transmitted to monitoring data early warning forecast platform 8 by wireless real time.
The monitoring data early warning and forecasting platform 8 can be a computer or a mobile phone end, the monitored water content and rainfall data are wirelessly transmitted to the monitoring data early warning and forecasting platform 8 through the remote data transmission module 7, and the maximum rainfall infiltration depth of each position is obtained by analyzing the water content data of each position.
The invention also provides a monitoring method for determining the maximum rainfall infiltration depth of the lower sand slope, which comprises the following steps:
s1, extracting data of five water content sensors 1 at the top, middle upper part, middle lower part and foot of the lower hollyhock side slope according to the data early warning and forecasting platform 8, drawing a change curve of the data of each water content sensor 1 with time, and drawing a change curve of rainfall data with time;
and S2, analyzing the data of the five water content sensors 1 at the top, the middle upper part, the middle lower part and the foot of the side slope of the lower hollyhock soil to obtain the maximum rainfall infiltration depth range at each position.
In the embodiment, the water content data of the top, the middle upper part, the middle lower part and the foot of the lower hollyhock side slope are respectively analyzed, and if the data of the water content sensor 1 fluctuates greatly along with the change of time, the rainfall infiltration depth of the position can be considered to be larger than the embedding depth of the water content sensor 1; if the data of the water content sensor 1 does not fluctuate substantially with time, the rainfall infiltration depth at that position is considered to be smaller than the embedding depth of the water content sensor 1.
As shown in FIG. 3(a), the water content of the slope tops of 1m, 2m, 3m and 4m of the lower hollyhock soil fluctuates with the change of time, while the water content of the slope top of 5m does not change obviously with the change of time, and the maximum rainfall infiltration depth of the slope top is between 4m and 5 m.
As shown in FIG. 3(b), the water content of the upper parts 1m, 2m and 3m of the lower hollyhock slope body fluctuates with the change of time, while the water content of the upper parts 4m and 5m of the slope body is not obviously changed with the change of time, and the maximum rainfall infiltration depth of the upper parts of the slope body is between 3m and 4 m.
As shown in fig. 3(c), the water content of the lower part of the slope body of the lower hollyhock soil at positions 1m, 2m and 3m fluctuates with the change of time, while the water content of the lower part of the slope body at positions 4m and 5m is not obviously changed with the change of time, and the maximum rainfall infiltration depth of the lower part of the slope body is between 3m and 4 m.
As shown in FIG. 3(d), the water content at 1m, 2m, 3m and 4m of the slope angle of the lower Shu soil slope fluctuates with the time change, while the water content at 5m of the slope angle does not change obviously with the time change, and the maximum rainfall infiltration depth at the slope toe of the slope body is between 4m and 5 m.
And S3, connecting the maximum rainfall infiltration depths at each position to obtain a maximum rainfall infiltration depth curve of the lower-sand side slope, wherein the maximum rainfall infiltration depth curve obtained in the embodiment is shown in FIG. 4.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a confirm that the biggest rainfall infiltration degree of following shu soil side slope monitoring system, its characterized in that includes: the rainfall monitoring device comprises a water content sensor (1), an automatic rainfall monitor (4), a solar panel (5), a box body (6), a remote data transmission module (7) and a monitoring data early warning and forecasting platform (8);
the water content sensor (1) is connected with the data transmission module (7) through a water content sensor cable (9); the automatic rainfall monitor (4) is connected with the data transmission module (7); the data transmission module (7) is connected with the monitoring data early warning and forecasting platform (8);
the water content sensor (1) is used for detecting the water content of the lower Sichuan soil (2) to obtain water content data;
the automatic rainfall monitor (4) is used for automatically collecting and storing rainfall data;
the solar panel (5) is used for supplying power to the monitoring system;
the data transmission module (7) is used for sending the water content data and the rainfall data to the monitoring data early warning and forecasting platform (8);
the monitoring data early warning and forecasting platform (8) is used for displaying change curves of water content and rainfall data and time.
2. The monitoring system for determining the maximum rainfall infiltration depth of an undergrowth soil slope according to claim 1, wherein the moisture content sensor (1) is embedded in an undergrowth soil layer (2) and is arranged on a soil wall (11) by arranging a moisture content sensor probe (10).
3. The monitoring system for determining the maximum rainfall infiltration depth of the lower hollyhock soil slope according to claim 1, wherein the water content sensors (1) are respectively arranged at the top of the lower hollyhock soil slope, the middle upper part of the slope body, the middle lower part of the slope body and the bottom of the slope body.
4. The monitoring system for determining the maximum rainfall infiltration depth of an subsoil slope according to claim 1, wherein said automatic rainfall monitor (4) is arranged at the top of the subsoil slope.
5. The monitoring system for determining the maximum rainfall infiltration depth of a siltation slope according to claim 1, wherein one end of the box (6) is openable and closable.
6. The monitoring system for determining the maximum rainfall infiltration depth of a lower soil slope according to claim 1, wherein the remote data transmission module (7) is placed inside the box (6).
7. The monitoring system for determining the maximum rainfall infiltration depth of a siltation slope according to claim 1, wherein the solar panel (5) is disposed on top of the box (6).
8. The monitoring system for determining the maximum rainfall infiltration depth of the lower hollyhock soil slope according to claim 1, wherein the monitoring data early warning and forecasting platform (8) comprises a computer or a mobile phone terminal.
9. The monitoring method for determining the maximum rainfall infiltration depth of an underwater soil slope according to any one of claims 1 to 8, comprising the steps of:
s1, extracting data of five water content sensors (1) at the top, middle upper part, middle lower part and foot of a lower hollyhock slope through the data early warning and forecasting platform (8), and drawing a change curve of the data of each water content sensor (1) with time and a change curve of rainfall data with time;
s2, analyzing data of five water content sensors (1) at the top, middle upper part, middle lower part and foot of the lower hollyhock side slope to obtain the maximum rainfall infiltration depth range at each position;
and S3, connecting the maximum rainfall infiltration depth at each position to obtain a maximum rainfall infiltration depth curve of the lower-sand side slope.
10. The monitoring method for determining the maximum rainfall infiltration depth of an underlying soil slope according to claim 9, wherein the calculation process of the maximum rainfall infiltration depth range is as follows: if the data of the water content sensor (1) fluctuate greatly along with the change of time, the rainfall infiltration depth is greater than the embedding depth of the water content sensor (1); if the data of the water content sensor (1) basically does not fluctuate along with the change of time, the rainfall infiltration depth is smaller than the embedding depth of the water content sensor (1).
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| CN113789819A (en) * | 2021-09-18 | 2021-12-14 | 江苏省地质矿产局第三地质大队 | System and method for monitoring prestress of anchor rod of expansive soil slope |
| CN113917113A (en) * | 2021-10-18 | 2022-01-11 | 国能神东煤炭集团有限责任公司 | Intelligent soil water content time sequence monitoring device |
| CN114264789A (en) * | 2021-11-15 | 2022-04-01 | 武汉科技大学 | Method and system for monitoring adjacent rock stratum above side slope weak interlayer |
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