Evaluation of Water Content on the Mechanism of Action of Different Soils

Abstract

Water content is one of the important physical parameters of soil. In different soils, water content has different effects on their physical and mechanical properties. In the face of the increasingly complex international situation, the study of battlefield activities and support is particularly important. As an important part of the battlefield environment, rock and soil mass elements need to be explored in actual combat. Taking a training ground as an example, this paper collects samples of different soil types and makes mathematical statistics and analysis of laboratory results on the basis of in-situ tests. The research shows that: (1) In soils with relatively low porosity and dense matrix, the moisture content has a delayed effect on the timeliness. With the increase of moisture content, the cohesiveness of the soil increases, while the internal friction Angle decreases. For viscous soil, the moisture content contributes to the shear resistance, while for non-cohesive soil, the moisture content decreases the shear resistance. (2) The sensitivity of different soils to water content is obviously different. In the dense and hard soil area, water content changes slowly and has little influence on the final military-related activities. Compared with the three soils in the area, the sensitivity is in the order of silt > gravel sand > crushed (pebble) stone; (3) In the simulated pre-rain and post-rain training environment, the bearing capacity of soil mass and the damage effect evaluation of the same type of shell in the anti-strike area are consistent with the correlation of soil water content, indicating that under the same environment, the change of different water content will affect the mechanical properties of soil mass itself. (4) Moisture content has a great influence on geotechnical physical parameters, which is an important part of the analysis of battlefield environmental factors, and the research results can guide the design of relevant exercises and training activities.