'soil hardening' is a correct and usable phrase in written English.
It is usually used to describe a process that occurs when soil becomes tougher and more resistant to further changes. For example, "The continuous tilling of the soil caused it to harden, making it more difficult to plow."
The emphasis has been placed on presenting the particular model characteristics, simulation of soil hardening and softening response and the establishment of model nonassociativity.
The uses of H2SiF6 are various such as metal refinement, soil hardening agent, surface treatment agent, sterilizer and water system purification.
To capture the behavior of unsaturated soils, Alonso et al. ([1990]) developed the Barcelona Basic Model (BBM) by correlating soil hardening with suction.
Drought also has a mechanical stress component due to soil hardening [ 9], and salt stress has an ionic component which may be toxic and induce specific genes.
But as the proverb goes, "Soil hardens after rain".
The soil macropore system was also characterized using image analysis on the sections of soil samples hardened with polyester resin.
To halt the flow of contaminated water, Tepco built an underground barrier along the shoreline in front of one damaged reactor in June by injecting chemicals into the soil to harden it.
The numerical results indicated that the hardening soil model with the soil modulus obtained from in situ pressuremeter tests yields reasonable predictions for excavation-induced wall deformation.
That could lead to a series of problems such as soil acidification, salinization, hardening, and nutrient imbalance, causing soil degradation and yield reduction.
After hardening, soil mix elements with improved mechanical and hydraulic characteristics are realized.
The GA optimization approach tends to overpredict surface settlements at some distance from the excavation as it is constrained by a specific form of the material constitutive model (i.e. hardening soil model); while the surface settlements computed using SelfSim approach match the observed ones due to its ability to learn small strain non-linearity of soil implied in the measured settlements.
