Lee in 1929.In after years, he created geomechanics with tectonic system as its core and some important problems on the resources and geological hazards of China were soled by this theory.

• 随后的年代中,李四光以构造体系为核心,创立了地质力学,并以这种理论去解决我国资源和地质灾害的一些重大问题。