The present disclosure discloses an earthen dam structure including a core wall that includes a homogeneous mixture of clay, sand, powdered tire rubber and Portland cement. Additionally, the core wall contains the powdered tire rubber in an amount sufficient to increase a modulus of elasticity of the core wall to over 10 MPa while keeping a hydraulic conductivity of the core wall under 100 feet/year. The earthen dam structure further includes an upstream embankment portion and a downstream embankment portion, each positioned adjacent to the core wall, and a spillway configured to prevent water from overtopping a crest of the core wall.

A pier assembly for supporting a structure includes a guide member having a base plate and a plurality of tubular guides extending from the base plate. In addition, the base plate includes a plurality of through holes and each tubular guide includes a through passage aligned with one of the through holes of the base plate. Further, the pier assembly includes a plurality of elongate members. Each elongate member extends through one through hole in the base plate and the through passage of the corresponding tubular guide.

The present invention provides a method for protecting a soil slope from rain erosion by improving with phosphogypsum and a microbe. The method includes: (1) placing Bacillus pasteurii in a culture medium to prepare a microbial solution, and mixing urea, calcium chloride and water to prepare a cementing solution; (2) mixing a mixture, the microbial solution and water well, and adding the cementing solution and water to prepare an improving mixture slurry; and (3) spraying the improving mixture slurry to a face of the slope twice by wet spraying, mixing the improving mixture slurry with grass seeds well, spraying to the face of the slope once, covering with a non-woven fabric by tying and fixing to the slope, and watering every day.

A method for installing a tubular metal pile in a rocky ground, successively comprises the steps of drilling the rocky ground in order to form a cavity of predetermined diameter and depth, filling the cavity with a granular material, arranging the granular material present in the cavity by vibration, and installing the pile in the cavity.

The invention relates to a low-permeability geotechnical barrier material including a blend of approximately equal parts of: aggregate particles, sand-size particles and manufactured composite particles that include a hydratable sealant material composed of naturally-occurring clay minerals and/or polymer-enhanced clay minerals, such that the actual percentage of clay mineral component is less than 10% by weight in the blended material. In a particular embodiment, the construction of a low-permeability geotechnical barrier using predominantly coarse grain materials by conventional compaction efforts is rarely attempted due to the difficulty of maintaining a uniform mix of well-graded sand and aggregate blends necessary to achieve low permeability. The regularly achievable permeability offered by this material blend when installed with specific proscribed techniques using conventional equipment can be 5×10.sup.−8 cm/sec or lower.

A pocket structure for receiving containerized plants is sloped and hung from a wire of a wire basket. The pocket structure includes hooks, an irrigation fitting and corresponding drip channel to transmit water toward the rear of the pocket, and slots in the walls. The mesh units include braces and are sized for shipping. An earth wall is formed of the mesh units and pockets, and includes irrigation tubing.

A hexagonal wire netting (7), a process for manufacturing such a wire netting and a device for manufacturing a hexagonal wire netting (7), the device comprising an assembly of tubes (5) for leading the wires (1) of which every other is twisted into a spiral shape, a spindle (6) assembly and a drum (8) receiving the wire netting (7), the drum (8) being provided with &tent elements (21). Between each tube (5) leading the spirally twisted wire (I) and the cooperating spindle (6) a straightening guide (IO, IO′) is located having an inlet opening (13, 15) cooperating with the tube (5) and an outlet opening (12, 20) cooperating with the spindle (6). The detent elements (21) are arranged on the drum (8) in such a way that the produced wire netting (7) has meshes in which the proportion of the width (A) to the length (B) is less than 0.75.

A bio-friendly water flow control system can include a portable structure adapted to contain organic waste material. The water flow control system can be configured for deployment outdoors to guide water flow to limit erosion. A portable structure of such a system can include a sheath that is configured to contain waste material within an interior of the sheath. The portable structure may be configured to allow a flow of water into the interior of the sheath. The portable structure may include a waste material that includes processed palm frond particles. The portable structure may be configured to absorb a weight of water at least 50% greater than a dry weight of the portable structure.

Embodiments of the present disclosure generally relate to a pumping unit base and methods for operating with the pumping unit base. The pumping unit base may include a plurality of driven piles installed in the ground, and a metal platform fixedly attached to the plurality of driven piles, wherein the metal platform is positioned above the ground. The metal platform may be removed from the driven piles and reinstalled to the driven piles.

Concrete foundations for supporting towers and other structures under heavy cyclical loads are described. Some or all of the major concrete components, such as the beams and the hubs, that form the foundation are fabricated off-site and then transported to the intended use site for the foundation. The concrete components can be fabricated as pre-cast segments, sections, or pieces, with the pre-cast segments then being assembled in the field at the use site to form each component, and the components then being assembled together to form the foundation. In one embodiment, the beams used in the foundation may have a box-girder construction.