There are only elastic deformation and brittle deformation on the process of hydraulic fracturing, and not compaction.
水力劈裂过程只有弹性变形和脆性破坏，不存在裂隙压裂过程中的第三种变形机理—压缩破坏。
2
With the increase of the degree of compaction, the elastic modulus and the amount of reinforcement, the strength of reinforced soil increases.
加筋土的强度随着压实度、加筋层数及加筋材料弹性模量的增大而增大；
3
The Roller Compacted Concrete has different elastic constants in horizontal and ver-tical directions, because of layer by layer compaction in the construction.