Landslide online monitoring program

Last update time : 2018年1月2日

Author : zhang jie

Importance of monitoring landslide online

Landslides refers to a part of the mountain slope of rock and soil under gravity (including the geotechnical gravity and groundwater hydrostatic pressure) under the action of certain weak structural surface (shear band) to produce shear displacement to the overall slope The role of the bottom of the move and the phenomenon. Commonly known as “go mountain”, “collapse”, “slip ground”, “soil slip” and so on. Is one of the common geological disasters.

At present, the process of urbanization in our country is accelerating constantly, geological disasters also increase, and landslides are very common disasters in geological disasters. At the same time, many of the landslides in our country nowadays are caused by arbitrary mining and construction work. Due to the large amount of mining and construction work carried out, the mountain slope is very unstable and the geological conditions, mountain slope and hydrological conditions have undergone great changes, and their changes have resulted in frequent landslides This phenomenon has a great impact on the people around us. It seriously affects the safety of people’s lives and property and is very detrimental to people. Therefore, we must discuss and analyze the causes of the landslides, so that we can Proposed solutions targeted.

Our country has a vast territory and a very complex geographical situation. This feature has also caused the distribution of landslides in our country to be very widespread, especially in the northwestern regions of China and the mountainous regions in the southwestern region. Landslides often occur in these areas. In the event of landslides, many of the mountains usually slide slowly for long periods of time, and intermittent phenomena may occur. These landslides are usually of different sizes, with the largest area sometimes reaching several million cubic meters and many small areas of only a few hundred cubic meters. If the landslides are extremely serious, it is likely to have devastating effects on the surrounding mountainous villages. Frequent injuries and fatalities will frequently occur and the property of the people living there will also be greatly damaged. Serious landslides often cause river truncations and dammed lakes. Will damage a large number of farmland and trees, which is very bad for the development of our national economy and seriously affects people’s lives and property.

The main reasons for landslides occurred include: topography and structure of the reasons; precipitation causes; man-made causes of these categories.

Reasons for the topography: Landslides occur frequently because the topography and topography have reached a certain limit, for example, the mountain reaches a certain slope and many other conditions. Landslides often occur in flat areas, slopes of roads, slopes in rivers and other places, and slopes around railroads as long as their ramps reach fifteen to fifty degrees and The terrain in the middle of the area must also be very gentle. The downhill terrain of these places must be steeply shaped. These places are uphill slopes and are ring-shaped, so long as this is the case, landslides can easily occur.

 The reason for the structure: As long as there is a discontinuity in the soil on the mountain slope, it will be very easy to produce the condition of the mountain landslide. The landslide will often produce the landslide when the soil cutting phenomenon appears, but it is not only the mountain, When these two conditions occur, landslides may also occur. If the mountains and hills are often subject to long-term scrubs of rainwater, waterways will emerge that will allow the layers, faults and cracks of the mountains to be washed away by the rain, at a time when landslides are most apt to occur.

 Reasons for rain: Many landslides occur during the season with heavy rain. Large amounts of rainwater infiltrate the surface of the local mountain body. This situation will cause the water inside the slope body to continuously increase. So that the weight of soil appears increasing condition. In addition, the slope soil is often softened by soaking of the rainwater for a long time, which will degrade the shear strength of the slope soil. And the groundwater around the mountain will also change greatly. It will change the hydrostatic pressure, which will also have a great impact on the mountain landslide area, which will become one of the main causes of the landslide phenomenon.

Man-made causes: Workers often cause great damage to the mountain when carrying out engineering development in the mountainous areas. This is also one of the major causes of the landslide. There are many examples of this situation. The most common examples are the workers’ safety problems caused by road construction, which often affect the stability of the landslide area during highway construction.
SaiYing vein to self-developed Geomative DC law instrument as the core, the integration of TDR sensors, rainfall sensors, integration of wireless network technology, cloud platform technology, built into a landslide on-line monitoring system can be prone to landslides in key areas for landslides Remote monitoring. Rainfall sensors can report the situation of precipitation at this site in time, and whether there will be a direct correlation between landslides and soil moisture. In the slope, according to the situation deployment of electricity law instrument product line, regular monitoring of soil resistivity changes, inversions stratum stratigraphic structure and water changes. The TDR sensor in the coaxial cable, you can shift the soil displacement information into electrical signals reported. The Landslide landslide monitoring system is an example of the successful combination of displacement and imaging methods. The following is a system diagram:

The system is mainly composed of the following modules:
1. DC method products;
2. Rainfall meter, TDR and other sensors;
3. Controller;
4. Power Module;
5. Geo Could cloud server;
6. Client software;

Case reference site pictures:

http://www.geomative.com/台湾项目测试反演图对比.html

Calificación: 4.3 / 5 (Basada en 6 calificación) ¡Gracias por su calificación!
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Score: 4.2 / 5
Last update time 2018年1月2日

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