The invention relates to an erosion-controlling protective surfacing for the soil comprising flexible liquid-permeable supporting sheet means conforming to the contour of the soil and a mat of blocks on said supporting sheet means, said mat having drainage passageways therethrough so that water can pass through the surfacing. Preferably, the surfacing includes filter means and the blocks are secured to the supporting sheet means.

A length of mechanically strong material of cross-shaped cross-section, when placed along a beach, is resistant to tipping on wave-impact and prevents or hinders erosion. It can be made of concrete, in the shape of a cross of four equal arm lengths, either integrally or as interlocking slotted slabs. These slabs can also be built up into a chain of indefinite length, thus preventing gaps between individual members.

This apparatus is directed to an erosion barrier for use with a shoreline of tidal water having a flood and ebb phase in each tidal cycle in which a first tire barrier has a plurality of vertically stacked tiers of tires cut in half and positioned side by side in rows and the rows arranged in stacked tiers staggered and each tier connected to the tier immediately therebeneath. The half tires are positioned with their rounded tread positioned toward the tidal source and their open portion toward ...

An erosion bit for earth-drilling operations having a first nozzle system open for conducting drilling fluid and a second nozzle system closed by a pressure-sensitive closure means. Means are provided for plugging the first nozzle system and for actuating the pressure-sensitive closure means to open the second nozzle system. Drilling fluid can initially be flowed through the first nozzle system until the nozzles become eroded and then through the second nozzle system.

A slider resists erosion due to moisture, dirt and ultraviolet of sunlight and protects a pattern or the bonded surface from wear and tear. The slider contains a foam core, a top layer, a pattern, and a bottom layer. The foam core has a top surface, a bottom surface and edge surfaces. The top layer is a composite layer heat laminated to the top surface and edge surfaces of the foam core. The pattern is formed within the top layer and visible from outside of the top layer. The bottom layer is hea...

An erosion resistant waterwall in which a plurality of erosion resistant stud members are attached to the exposed surface of a waterwall consisting of a plurality of spaced water tubes connected together by continuous fins. The size of the stud members relative to the tubes are such that a plurality of the stud members extend around the periphery of each exposed tubes surface in a spaced relationship in a direction perpendicular to the axis of each tube. The stud members may be in the form of st...

An erosion resistant waterwall in which a plurality of erosion resistant stud members are attached to the exposed surface of a waterwall consisting of a plurality of spaced water tubes connected together by continuous fins. The size of the stud members relative to the tubes are such that a plurality of the stud members extend around the periphery of each exposed tubes surface in a spaced relationship in a direction perpendicular to the axis of each tube. The stud members may be in the form of st...

An erosion control system for protecting a shoreline is provided comprising a first row of starter elements in contact with one another and fixedly attached to the shoreline; a second row of standard elements in contact with one another and matably engaged with the first row, such that the second row is closer to the shoreline and overlaps the first row in an interlocking manner; a third row of standard elements in contact with one another and matably engaged with the second row, such that the t...

A structure which inhibits erosion of a hillside having a grade includes an upwardly open trough extending down the grade of the hillside, the trough having lateral skirts buried in the hillside to a depth below the lowermost trough depth measured transversely. The skirts and the trough are impervious to water and sealed together in watertight fashion and the trough forms a channel which is transversely lowermost in a valley extending down the grade of the hillside. The valley has sidewalls whic...

A hollow, L-shaped plastic block has a protrusion on a first end and a recess on the opposite end which fit together to form a retaining wall. A rod extends between openings in the protrusion and the recess to secure adjacent blocks against lateral movement. Alternating ribs and grooves are formed in two laterally extending surfaces and a horizontally extending surface to reinforce them against bulging and to provide passageways for runoff. Rebar is used to attach the blocks to the underlying an...