A technical treatment method for landslide emergency prevention and control

Abstract

The invention belongs to the technical field of landslide control and discloses a treatment method for landslide emergency prevention and control technology. Firstly, drill holes are arranged, and heat preservation infusion tubes are inserted into the drill holes. There are two parts in the ventilation section, and the air compressor and the liquid nitrogen tanker are connected with the gas pipeline inserted into the drill hole with the infusion tube; liquid nitrogen is injected into each drill hole to directly freeze the potential landslide body, and the potential landslide body is cooled by ultra-low temperature liquid nitrogen. The sliding surface is directly frozen to achieve formation reinforcement. When the soil around the borehole reaches the set freezing area and the temperature reaches the expected temperature, reduce the liquid nitrogen injection speed and adjust the liquid nitrogen injection speed to keep the temperature of the surrounding rock and soil at the rated low temperature , to achieve the effect of using soil freezing to improve the stability of landslides. The invention has low project cost for emergency treatment, simple and convenient operation in the implementation process of the treatment project, does not involve earth and rock excavation engineering in the treatment process, can quickly produce reinforcement effect, and has a particularly obvious effect in landslide emergency treatment.

Description

technical field [0001] The invention belongs to the technical field of landslide prevention and control, and in particular relates to a technical treatment method for landslide emergency prevention and control. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: landslides are one of the most common geological disasters, especially in the construction process of southwest mountainous areas, this kind of disaster often causes heavy losses to engineering construction, and is an important factor restricting regional development . The vast majority of landslides are closely related to rainfall, and landslides occur because the physical and mechanical parameters of the structural surface of the softened slope controlled by rainfall reduce the anti-sliding force. Most of the landslides in the southwest area are characterized by clusters, especially in the rainy season or areas with large fluctuations in the water level of...

AI Technical Summary

Problems solved by technology

[0004] (1) The anti-sliding calculation mostly depends on the existing sliding belt parameters, and the sliding belt parameters are defaulted as inherent conditions. In order to improve the stability coefficient, the treatment cost has to be greatly increased

[0005] (2) The cost of supporting measures is high, the changes to the landform are relatively large, the measures are irreversible, and the construction is easy to cause pollution to the environment

[0006] (3) Drainage measures have high requirements on the drainage environment of the slope, and many slopes often lack favorable landform environment, which makes it difficult to guarantee the effectiveness of drainage measures

Images