Poroelastic Properties of Crustal Rocks

小行星9614558 PI建议利用现有的和新开发的实验室技术，通过实验确定岩石孔隙弹性特性。 岩石应力-孔隙水压力耦合过程的研究在岩石物理、水文、石油工程等领域具有重要的应用价值，需要大量的实验数据。 将开发一个实验数据库，以解决毕奥理论的前提下，孔隙压力是不耦合与剪切应变，实验将调查孔隙压力和围压的孔隙弹性模量的依赖性，孔隙弹性模量与岩石类型的一般变化，孔隙弹性模量和微观力学性能之间的关系。该研究为地球上地壳物理现象的孔隙弹性模拟提供了坚实的实验基础。 ***

9614558 Wang The PI proposes to experimentally determine rock poroelastic properties by utilizing existing and newly developed laboratory techniques. The laboratory data are needed for studying coupled stress-pore pressure processes in rocks, which are important in applications in geophysics, hydrology, and petroleum engineering. An experimental database will be developed to address the Biot theory premise that pore pressure is not coupled with shear strain, and experiments will investigate the dependence of poroelastic moduli on pore pressure and confining pressure, the general variations of poroelastic moduli with rock type, and the relationships between poroelastic moduli and micromechanical properties. The research should provide a solid experimental basis for poroelastic modeling of geophysical phenomena in the earth's upper crust. ***