The present invention relates to systems and methods for subterranean energy storage. The systems and methods involve a higher-pressured subterranean rock formation in fluid communication with a lower-pressured subterranean rock formation via a controllable fluid channel intersecting both formations. Potential energy is converted to electrical energy by allowing fluid to flow from the higher-pressured formation to the lower-pressured formation through a turbine in fluid communication with the fluid channel. The system is recharged by pumping fluid from the lower-pressured subterranean rock formation to the higher-pressured subterranean rock formation using a pump in fluid communication with the fluid channel.

The present invention relates to systems and methods for subterranean energy storage. The systems and methods involve a higher-pressured subterranean rock formation in fluid communication with a lower-pressured subterranean rock formation via a controllable fluid channel intersecting both formations. Potential energy is converted to electrical energy by allowing fluid to flow from the higher-pressured formation to the lower-pressured formation through a turbine in fluid communication with the fluid channel. The system is recharged by pumping fluid from the lower-pressured subterranean rock formation to the higher-pressured subterranean rock formation using a pump in fluid communication with the fluid channel.

An arrangement method for deformation of a locked patch crack of a rock slope, includes: connecting a filling pipeline on a bladder-type monitoring probe to a mortar guiding pipe through an automatic locking and unlocking device, clamping a portion to be clamped on a bladder by a clamping assembly, driving a clamping driving mechanism to move towards an adit by a push driving mechanism, and pushing the bladder into the adit; injecting cement mortar into the bladder through the mortar guiding pipe by utilizing a high-pressure injection machine to expand the bladder until an upper surface and a lower surface of the bladder abut against an upper surface and a lower surface of the adit, and making a monitor on the bladder abut against the upper and lower surfaces of the adit; and arranging a plurality of bladder-type monitoring probes in an array in the adit.

An arrangement method for deformation of a locked patch crack of a rock slope, includes: connecting a filling pipeline on a bladder-type monitoring probe to a mortar guiding pipe through an automatic locking and unlocking device, clamping a portion to be clamped on a bladder by a clamping assembly, driving a clamping driving mechanism to move towards an adit by a push driving mechanism, and pushing the bladder into the adit; injecting cement mortar into the bladder through the mortar guiding pipe by utilizing a high-pressure injection machine to expand the bladder until an upper surface and a lower surface of the bladder abut against an upper surface and a lower surface of the adit, and making a monitor on the bladder abut against the upper and lower surfaces of the adit; and arranging a plurality of bladder-type monitoring probes in an array in the adit.

An apparatus for backfill paste includes a mixing means configured to produce paste, a storage means configured to store paste, and a feeding means configured to feed paste to a borehole. The mixing means and the storing means is formed of a combined storage and mixing means. The feeding means includes a bottom discharge port configured to feed paste from the combined storage and mixing means. The apparatus includes monitoring means configured to monitor the level of paste in the combined storage and mixing means to maintain the level of paste in the combined storage and mixing means above a setpoint value so as to prevent air from entering the borehole from the combined storage and mixing means.

An apparatus for backfill paste includes a mixing means configured to produce paste, a storage means configured to store paste, and a feeding means configured to feed paste to a borehole. The mixing means and the storing means is formed of a combined storage and mixing means. The feeding means includes a bottom discharge port configured to feed paste from the combined storage and mixing means. The apparatus includes monitoring means configured to monitor the level of paste in the combined storage and mixing means to maintain the level of paste in the combined storage and mixing means above a setpoint value so as to prevent air from entering the borehole from the combined storage and mixing means.

The present invention relates to systems and methods for subterranean energy storage. The systems and methods involve a higher-pressured subterranean rock formation in fluid communication with a lower-pressured subterranean rock formation via a controllable fluid channel intersecting both formations. Potential energy is converted to electrical energy by allowing fluid to flow from the higher-pressured formation to the lower-pressured formation through a turbine in fluid communication with the fluid channel. The system is recharged by pumping fluid from the lower-pressured subterranean rock formation to the higher-pressured subterranean rock formation using a pump in fluid communication with the fluid channel.

The present invention relates to systems and methods for subterranean energy storage. The systems and methods involve a higher-pressured subterranean rock formation in fluid communication with a lower-pressured subterranean rock formation via a controllable fluid channel intersecting both formations. Potential energy is converted to electrical energy by allowing fluid to flow from the higher-pressured formation to the lower-pressured formation through a turbine in fluid communication with the fluid channel. The system is recharged by pumping fluid from the lower-pressured subterranean rock formation to the higher-pressured subterranean rock formation using a pump in fluid communication with the fluid channel.