Matches 1 - 50 out of 235 1 2 3 4 5 >
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7500806 Method and apparatus for constructing filter zones in earthfill dams  
A method and apparatus for constructing a filter zone of an earthfill dam, in which the filter zone includes adjacent coarse and fine filter layers. The coarse and fine filter materials are...
7374371 Process and composition for forming an earthen hardpan  
A brine sealant solution and both a one-step and two-step process for producing an earthen hardpan in a pond or slush pit is described. The process disperses clay in an aqueous solution using...
7306406 Method of using anionic copolymer formulations for seepage control  
This invention relates to a method of seepage control which comprises contacting a soil surface with a composition comprising anionic copolymers and a surfactant. This invention provides a method...
7156580 Interlockable drainage system  
The specification and drawing figures describe and show an interlockable drainage system insertable into a ditch that includes two or more liner sections. Each liner section includes a plurality of...
7083358 Aquatic weed suppressor  
A sub surface aquatic weed barrier consisting of a strip of plastic held to the aquatic substrate by transverse weights bonded to the plastic strip. Gas release ports are located in the plastic...
7077198 In situ recovery from a hydrocarbon containing formation using barriers  
A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be...
7032660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation  
An oil shale formation may be treated using an in situ thermal process. Fluid migration into and/or out of a treatment area in the formation may be inhibited. In some embodiments, a barrier may be...
6974278 Thermo-structural base for construction on unstable soils  
In this invention, after the grade at a construction site has been excavated and/or graded to its preliminary rough grade, re-enforcing material, typically synthetic in nature, such as nylon or...
6957932 Benthic screen for controlling aquatic plant growth  
A benthic screen for controlling aquatic plant growth comprising a sheet of flexible material, a plurality of spaced-apart, elongated retaining members that are transversely positioned across the...
6955502 Method for repairing in-ground tunnel structures  
A method for repairing in-ground tunnel structure involves applying a first curable resin over a cementitious liner which lines the interior wall surfaces of the tunnel, drilling drainage holes in...
6926469 Crawlspace encapsulation system with resealable access openings  
An improvement in an installation having a continuous water-impervious liner forming a barrier against the entry of water vapor and insects such as termites from the sub-soil into a crawlspace....
6869256 Sealing composition and its use  
A method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about...
6860680 Waste containment and processing facilities formed contemporaneously with the disposal of mineral refuse, and related methods  
The invention pertains to means and methods for enabling the further use of previously negative assets, and particularly from those facilities formed from gypsum waste, such as that suitable for...
6840710 Underground alluvial water storage reservoir and method  
An underground reservoir for storing water in alluvial deposits utilizes slurry walls keyed to an aquiclude beneath the reservoir to form a substantially impermeable water seal. A variety of water...
6837655 Submersible canal bypass  
A submersible canal bypass is used to bypass the flow around a distinct section of an earthen canal for lining. The canal bypass is placed within the canal and uses a plurality of pipelines and a...
6821059 Polyurethane-forming composition with adjustable mix viscosity, geotextile composites prepared therefrom and a process for producing such composites  
A polyurethane-forming reaction mixture characterized by its ability to be adjusted with respect to its viscosity in response to changing temperature and humidity conditions is achieved with a...
6802805 Method for recombining soil  
A method for recombining and then solidifying groups of soil particles by utilizing changes in the status and properties of soil particles which comprises a combination (in an adhering state)...
6786680 Process for patching canals and ditches with a non-sagging polyurethane composition  
Seams are sealed and surface defects are repaired in a polyurethane/geotextile composite applied over concrete, an earthen canal or a ditch with a non-sagging polyurethane composition. This...
6755596 Plastic lined canal  
An irrigation canal includes a plastic liner mechanically connected to the canal by fasteners extending through tabs located between the liner and the canal so the fasteners do not extend through...
6691472 Foundation wall protector  
A foundation protector for a foundation wall prevents moisture being retained in the foundation wall and also provides drainage for surface water so that water does not rest against the surface of...
6612779 Embankment dam and waterproofing method  
A dam includes a body ( 11 ) made of loose material, for example earth and/or rocks (A), and a water barrier ( 12 ) axially extending to the dam body ( 11 ), including a waterproofing layered...
6575666 Crawlspace encapsulation system  
A system for encapsulating a crawlspace against the entry of sub-soil water vapor and also against the entry of external ground water from the crawlspace walls and for completely isolating the...
6558080 Methods and compact apparatus for covering landfill  
An apparatus and method for covering landfill includes a deployer suspended below the bucket of a loader. A roll of film is disposed on the deployer and uncoiled to deploy a film covering on the...
6543968 Submersible canal bypass  
A submersible canal bypass is used to successively bypass the flow around distinct sections of an earthen canal for lining. The canal bypass is placed within the canal and uses a plurality of...
6409818 Disposable water resistant foamed concrete cover for bulk salt  
The present invention is directed to a composition and method for forming an inexpensive, semi-permanent cured foamed cementitious cover layer over deicing salt which is stored outdoors in large...
6303204 Earthen liner with clay seam cover  
A geosynthetic liner may be formed of sheets of substantially liquid impermeable synthetic material such as high density polyethylene. The adjacent edges of adjacent sheets may be lapped over one...
6270291 Method for applying plastic soil mulch  
A method for applying liquid plastic polymers to soil surfaces in order to form a continuous membrane film for soil mulch. The plastic mulch is useful for enhancing crop production, disinfestation...
6264400 Dispenser for material on a roll  
The disposal of rubbish (trash, garbage), and other waste materials, is nowadays effected in a properly-designed tip (dump) so constructed and lined that none of its contents can in any way affect...
6250848 Process for guidance, containment, treatment, and imaging in a subsurface environment utilizing ferro-fluids  
Disclosed are processes for monitoring and control of underground contamination, which involve the application of ferrofluids. Two broad uses of ferrofluids are described: (1) to control liquid...
6241426 Method for forming an interconnected underground structure  
A method is provided for forming an interconnected underground structure which avoids settling of adjacent soil structure. A plurality of underground support columns is initially formed, with the...
6238766 Moisture barrier protection system and method  
A tough, high-strength geomembrane made from a custom blend of polyethylene copolymers, for protecting waterproofing courses from impact and pressure damage of debris resting against the waterproof...
6238137 Containment system for spills  
A spill containment system for storage tanks, flow devices, and the like, and a containment system for spilled light non-aqueous phase liquid are provided. The spill containment system comprises a...
6102617 Impoundment leak detection, location, and containment system and method with mobile sensor  
An impoundment leak detection, location, and containment system includes a leak detection and location structure positioned below the impoundment with a system of conduit spanning substantially all...
6095720 Stabilized fluid barrier member and method of forming same  
The invention relates to a stabilized fluid barrier member and to methods of forming the same. The fluid barrier comprises a first outer sheet member having a top surface and a bottom surface, with...
6074132 Lining for a landfill site  
A method of lining a side face (11) of a landfill site comprising the steps of erecting a framework (10) including laterally spaced substantially vertically extending members (12) adjacent the...
6071043 System for securing landfills  
The invention provides a method for securing waste landfills so as to prevent seepage of fluids into natural formations. A coating composition containing rubber crumb is sprayed onto polymeric...
6065903 Enhancing load bearing characteristics of compacted soil  
Methods are disclosed for preparation of chemically-stabilized emulsions of tall oil in water. Temperature and pH are controlled during preparation of the emulsions so as to prevent saponification...
6065901 System and method of gas dispersal and collection for preventing gas contamination  
6059035 Subterranean zone sealing methods and compositions  
The present invention provides sealing methods and compositions for use in subterranean zones penetrated by well bores. The methods of the invention basically include the steps of preparing a...
6053662 Panel assembly for RCC dam and construction method  
A panel assembly to be used in an RCC dam structure, or the like, includes a precast concrete panel, a geomembrane liner extending over the full face of the panel and a geotextile sheet backing on...
5990196 Surface-layer structure of soil having weed emergence inhibitor activity and method of weed emergence inhibition  
The present invention provides a ground surface structure for prevention of weed growing. The structure includes a germination-preventing sheet (2) resistant to penetration of buds of a plant and...
5961437 Multi-layer waste containment barrier  
An apparatus for constructing an underground containment barrier for containing an in-situ portion of earth. The apparatus includes an excavating device for simultaneously (i) excavating earthen...
5921319 Methods of terminating water flow in a subterranean formation  
This invention relates to methods of using environmentally friendly cementitious compositions for terminating water flow in a subterranean formation such as in a fresh water zone or water aquifer....
5915881 Method and composition of a clay slurry capping system for landfill and mineral waste areas  
A method and composition are shown for capping exposed land areas, such as landfills, toxic waste sites, and mineral waste sites areas. A formulation is prepared by making a hydrated solution of a...
5915878 Silt fence machine  
A device for slicing through soil and simultaneously inserting silt fence into the soil. Silt fence is a synthetic material installed in and above the ground to impede silt erosion from areas...
5906572 Liquid hydrocarbon sorbing and solidifying pillow  
A device for collection and containment of spilled or leaked liquid hydrocarbons absorbs pollutants that come in contact. The absorbed material is solidified-within the pillow into a rubber-like...
5897946 Flowable material to isolate or treat a surface  
A flowable material to isolate or treat a surface consists of a plurality of manufactured composite particles. Each composite particle includes a core, and a sealant layer at least partially...
5893680 Volatile contaminant extraction from subsurface apparatus and method  
The present invention is a soil remediation system which uses naturally occurring barometric pressure oscillations to remediate volatile contamination in the vadose zone. By applying a surface...
5879110 Methods for encapsulating buried waste in situ with molten wax  
A method is disclosed for constructing, verifying, and maintaining underground vaults that isolate and contain radioactive burial sites. The method employs a buoyant lift technique to isolate a...
5863153 Waste treatment  
Landfill sites or other refuse deposits are temporarily covered by sheet material between successive filling or dumping operations. The sheet material may be left in place and more refuse deposited...
Matches 1 - 50 out of 235 1 2 3 4 5 >