Simulation test system integrating start, migration and accumulation of debris flow

Abstract

The invention discloses a simulation test system integrating the start, movement and accumulation of debris flow, including an instrument table, a water supply system, a control center, a pipeline and a water distribution system, a receiving line, an electromagnetic flowmeter, a water guide pipe, and a raindrop simulation system. Sprinklers, rain sensors, source tanks, porometers, matrix suction probes, soil moisture probes, flow tanks, flow rate test devices, impact test devices, stacking plates, tailing tanks, lifting systems and digital acquisition systems. The invention can combine the two types of mud-rock flow caused by rainfall and water erosion for research, and simulate the real rainfall process; it can effectively monitor the key parameters in the mud-rock flow experiment process, and simulate the whole process of mud-rock flow initiation, migration and accumulation.

Description

technical field [0001] The invention relates to a simulation test system for mud-rock flow, in particular to a simulation test system integrating start-up, movement and accumulation of mud-rock flow. Background technique [0002] According to statistics, the area of ​​debris flow activity in China has reached 4.3 million km 2 Debris flow has become a major disaster in the economic construction of mountainous areas because of its complex formation process, sudden outbreak, fast flow, large material capacity, ferocious onset, short duration and strong destructive power. Debris flows often destroy highways, railways and other transportation facilities and even villages and towns, causing huge losses. However, debris flows often occur in remote mountainous areas, and their formation process and fluid structure are relatively complicated, with sudden outbreaks and rapid disasters, making it difficult to observe. One of the important means and core contents of the current resear...

AI Technical Summary

Problems solved by technology

[0004] However, there are some problems in the above-mentioned and existing debris flow simulation experimental devices: (1) For the two types of debris flows caused by rainfall and water erosion, the existing debris flow experimental system can only focus on one of them, and cannot combine the two for research

(2) Most of the current artificial rainfall is continuous and uniform in intensity, which cannot simulate the real rainfall process

(3) Factors related to a series of processes such as debris flow initiation, migration, and accumulation, such as material composition, particle gradation, water content, water source conditions, source troughs, circulation troughs, and slopes and roughness of accumulation plates, etc., Rainfall, rain intensity, rainfall type, rainfall process, etc., the existing experimental system can only focus on some factors

(4) The current experimental system cannot fully and effectively monitor key parameters such as pore water pressure, soil water content, matrix suction, flow velocity, and debris flow impact force during the debris flow experiment

(5) Existing debris flow simulators cannot simulate the whole process of debris flow initiation, migration and accumulation

(6) The current experimental device is inconvenient to operate for the complete simulation process of debris flow control, and the degree of systematization is not enough

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