A migration prevention system for radioactive wastewater from an underground nuclear power plant. The underground nuclear power plant includes a nuclear island including an underground cavern group including a reactor cavity and auxiliary cavities. The migration prevention system includes a protective layer coating the reactor cavity and an impermeable layer surrounding the nuclear island. The protective layer includes an inner liner, a drainage layer, and a filling layer of rock fractures in that order. The inner liner is configured to prevent exosmosis of the radioactive wastewater of the reactor cavity. The drainage layer is configured to gather and drain seepage water. The impermeable layer is disposed in the periphery of the underground cavern group including the reactor cavity and the auxiliary cavities, and is configured to isolate the underground cavern group from natural underground water.

A method of permeating and infusing a formation around the borehole with wax by heating a formation surrounding a borehole and pumping molten wax into the formation, wherein the molten wax flows into and fills voids the formation without disrupting the formation is described. Also, a method of permeating and infusing a formation around the borehole with wax by heating a formation surrounding a borehole, pumping molten wax into the borehole, heating and circulating the molten wax vertically within the borehole for an extended period using a heater and pump attached to a circulation pipe extended to the bottom of a zone of the borehole to be heated, and recovering molten wax from the borehole by displacing it back to the surface with another material of different density is described. Additionally, a method of forming subterranean barriers by drilling multiple closely-spaced boreholes along a subterranean boundary, treating the boreholes with infusions of molten wax, and forming a hydraulic barrier along said boundary is described.

A thin erosion control mattress system and method of protecting coastal structures and riverbanks against bearing failure and erosion from waves and current is disclosed. The thin mattress system includes geotextile fabric bonded to a tensile element (such as geogrid) and sand/gravel or other fill material confined in the mattress with connection elements (such as rivets) at specific intervals. The geogrid, which can be biaxial or multi-axial, provides tensile strength for picking during installation, improving foundation support and rigidity to the mattress system. The rivets function as spacers and tension elements to prevent bulging of the mattress, and are designed and spaced to temporarily secure the mattress in place for uniform filling and installation. The bonded geotextile-geogrid mat is typically sewn on all sides and filled with sand or gravel at designated fill ports. Further, a method of fabricating the thin mattress system is provided.

A thin erosion control mattress system and method of protecting coastal structures and riverbanks against bearing failure and erosion from waves and current is disclosed. The thin mattress system includes geotextile fabric bonded to a tensile element (such as geogrid) and sand/gravel or other fill material confined in the mattress with connection elements (such as rivets) at specific intervals. The geogrid, which can be biaxial or multi-axial, provides tensile strength for picking during installation, improving foundation support and rigidity to the mattress system. The rivets function as spacers and tension elements to prevent bulging of the mattress, and are designed and spaced to temporarily secure the mattress in place for uniform filling and installation. The bonded geotextile-geogrid mat is typically sewn on all sides and filled with sand or gravel at designated fill ports. Further, a method of fabricating the thin mattress system is provided.

A tape mounting system for a foundation covering having an adhesion strip including a porous substrate material. The porous substrate material having a wall adhesion side and a covering adhesion side facing opposite the wall adhesion side. An instant bond adhesive portion is included on the wall adhesion side and carries a first instant bond adhesive. An adhesive absorbing portion is included on the wall adhesion side that receives and absorbs an adhesive bead applied to a foundation wall. A second instant bond adhesive is disposed on the covering adhesion side for engaging a foundation wall covering. The instant bond adhesive on the wall adhesion side secures the adhesion strip to the foundation wall until the adhesive bead is cured to carry the foundation wall covering so that an air and moisture tight seal is formed between the foundation wall, the adhesion strip, and the covering material.

An electrically conductive geosynthetic clay liner incorporating an electrically conductive textile graphene.

An electrically conductive geosynthetic clay liner incorporating an electrically conductive textile graphene.

A collection tank for mounting under a floor of a building for collecting water from an area under the floor comprises upper and lower tank portions removably securable by rotatable mating of tabs in cavities. Additionally, a pump platform of the tank is formed by a plurality of ridges which form therebetween a channel so that the water is collectable in the tank between the ridges. Furthermore, the upper and lower tank portions are separable, and a width of the top of the upper tank portion is smaller than a width of the open top of the lower tank portion such that the upper tank portion can be received in the lower tank portion in an inverted orientation, in which the collection tank is inoperable for collecting the water, so as to decrease a height of the collection tank.

An apparatus and method for endwise connecting subterranean barrier members is disclosed. The apparatus includes at least two barrier members with each barrier member extending between top and bottom edges. Further, each barrier member has a side first edge having a flange defining a first connector and an opposed second side edge having a channel defining a second connector. The channel is sized and shaped to receive the flange of an adjacent barrier member in slidable interconnection therein. The apparatus further include a first side panel shaped to lie against a first side of the barrier members, a second side panel shaped to lie against a second side of the barrier members and a bridging plate located between the first and second panel members so as to bridge a gap therebetween, wherein the gap has a width corresponding to a width of the first and second barrier members. The associated method is directed toward creating the apparatus.

An apparatus and method for endwise connecting subterranean barrier members is disclosed. The apparatus includes at least two barrier members with each barrier member extending between top and bottom edges. Further, each barrier member has a side first edge having a flange defining a first connector and an opposed second side edge having a channel defining a second connector. The channel is sized and shaped to receive the flange of an adjacent barrier member in slidable interconnection therein. The apparatus further include a first side panel shaped to lie against a first side of the barrier members, a second side panel shaped to lie against a second side of the barrier members and a bridging plate located between the first and second panel members so as to bridge a gap therebetween, wherein the gap has a width corresponding to a width of the first and second barrier members. The associated method is directed toward creating the apparatus.