Individual four-sided shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant four-sided tiling shape for maximized structural strength and material use efficiency. Internal four-sided shaped modules are assembled and encased by external four-sided shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal four-sided shaped modules drain into four-sided shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

A method for storing very high purity hydrogen in a salt cavern is provided. The method includes introducing a compressed very high purity hydrogen gas into a salt cavern, thereby producing a stored very high purity hydrogen gas; maintaining the stored very high purity hydrogen gas at a pressure greater than about 1.0 psi per linear foot of height within the cavern, and less than about 4.0 psi per linear foot of height within the cavern.

A method for storing very high purity hydrogen in a salt cavern is provided. The method includes introducing a compressed very high purity hydrogen gas into a salt cavern, thereby producing a stored very high purity hydrogen gas; maintaining the stored very high purity hydrogen gas at a pressure greater than about 1.0 psi per linear foot of height within the cavern, and less than about 4.0 psi per linear foot of height within the cavern.

Individual square shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant square tilling shape for maximized structural strength and material use efficiency. Internal square shaped modules are assembled and encased by external square shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal square shaped modules drain into square shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

Systems and/or methods of waste disposal use human-made caverns that are constructed within deep geological formations. A given human-made cavern may be constructed by first drilling out a vertical wellbore to a deep geological formation. Then a bottom portion of the vertical wellbore is jet drilled using an abrasive jetting fluid to form a launch chamber of void volume, that is sized to fit a reaming tool in its deployed open configuration. A reaming tool, in a closed configuration, is then inserted into the vertical wellbore for landing in the launch chamber. The reaming tool is then deployed into its open configuration while in the launch chamber. Reaming operations then occur from the launch chamber directed downwards within the deep geological formation, forming a given human-made cavern. The newly formed human-made cavern may be conditioned and/or configured for receiving amounts of the waste for long-term disposal and/or storage.

The invention relates to a slipform apparatus (12, 14, 16) and method (50) of operating a slipform apparatus for constructing a primary slipform structure (22) from one side thereof. The slipform apparatus comprising a platform (12) having a plurality of work levels (28, 30, 32), and a lift device having at least one cable (14). The platform (12) is suitable for suspending from above by said cable (14) and the lift device is operable to raise or lower the platform (12). The plurality of work levels (28, 30, 32) are provided around a perimeter of the platform (12) and surround a central space (33) through the plurality of work levels (28, 30, 32). The method includes suspending the platform (12) from above using the lift device (14, 16), performing a rebar installation operation comprising raising the platform (12) using the lift device (14, 16) and installing at least one rebar cage (18, 20), using the lift device (14, 16) to lower the platform (12) to abase of the at least one rebar cage (18, 20), and performing a concrete slipform operation of the at least one rebar cage (18, 20) comprising raising the platform using the lift device (14, 16).

Systems and methods for long-term disposal of radioactive or nuclear waste materials, in liquid, solid, and/or other physical forms, into human-made caverns, within deep geologic rock formations, derived from a wellbore, are manufactured by use of drilling and reaming technologies. The radioactive waste may be preprocessed from original surface storage site(s), transported, temporarily surface stored, and then finally further processed at a selected well site before injection into the subterranean deep human-made caverns within the host rock (deep geologic rock formations).

A method of recovering a room-and-pillar coal pillar by using external replacement supports. In the recovery of a room-and-pillar coal pillar, a cement material wall is formed by performing pouring around a coal pillar having a width to height ratio of less than 0.6, by means of a single-pillar sack arrangement technique, such that a coal pillar resource may be mined while a wall made from a cement filling material supports an overlying stratum. After mining is complete, a coal pillar goaf region is filled with the cement filling material, and after the cement filling material solidifies and is stable, the single pillar can be recovered.

Systems and methods for long-term disposal of radioactive or nuclear waste materials, in liquid, solid, and/or other physical forms, into human-made caverns, within deep geologic rock formations, derived from a wellbore, are manufactured by use of drilling and reaming technologies. The radioactive waste may be preprocessed from original surface storage site(s), transported, temporarily surface stored, and then finally further processed at a selected well site before injection into the subterranean deep human-made caverns within the host rock (deep geologic rock formations).

Individual honeycomb shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant honeycomb shape for maximized structural strength and material use efficiency. Internal hexagonal or square shaped modules are assembled and encased by external hexagonal or square shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal hexagonal or square shaped modules drain into external hexagonal or square shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.