Elastic statics mainly relates to the connection between force and transmogrification, elastic body's invalidation, the guide line of design in invalidation.

静力学主要涉力和变形之间物关系，以体失效、失效有关准则。

However, the caving maybe happen because of too large transmogrification and rheologic fracture to high crustal stres.

统一流变断裂准则，最终形成了诱导条件下节理岩体持续大规模自然崩落判据。