A system and method to provide water and sediment flow through a dam or rock jetty, including a plurality of flow pipes positioned through the dam or jetty to receive water carrying sediment and a principal flow pipe to receive flow from the plurality of flow pipes and to deposit water and sediment a predetermined distance to the rear of the dam or jetty. A continuous trough may be mounted on the jetty forward face to efficiently capture water and sediment at entrances of the plurality of flow pipes. A system and method is also provided to suppress wave action against a shoreline and to collect sediment to build up the shoreline, comprising shelves extending out from a front wall of each body section, below a plurality of flow pipes, the shelves for shearing a wave and dispersing and using wave energy to direct sediment through the flow pipes.

The method for preventing and controlling glacial lake outbreak flood and related debris flows by the present invention is mainly controlling the scale of the floods by separating water and rocks and dispersing its energy step by step. The cascading amplification effects of floods can be reduced by controlling the initiation of source material with energy dissipation by using ground sills, groups of piles, and placed large stones and prefabricated artificial structures. The diversion dam built in the downstream area discharge floods in different layers, which can quickly guide water to the main river. The preconstructed engineering system can be used in a timely manner to prevent and control floods and debris flows induced by a sudden outburst of glacial lakes in areas with important facilities and inhabitants enduring the risk of natural hazards. Prevention and control systems can separate floods and debris flows and dissipate their energy. The groups of ground sills and check dams gradually dissipate the energy of floods, prevent high-energy boulders, and control the initiation of source materials in the channel and bank. Moreover, the systems can also separate the water and rocks in dilute debris flows or debris flows with high bulk densities but low viscosities. The diversion dams also enhance the separation function and keep the flood and debris flow discharge in the lower and upper channel to the main river.

The method for preventing and controlling glacial lake outbreak flood and related debris flows by the present invention is mainly controlling the scale of the floods by separating water and rocks and dispersing its energy step by step. The cascading amplification effects of floods can be reduced by controlling the initiation of source material with energy dissipation by using ground sills, groups of piles, and placed large stones and prefabricated artificial structures. The diversion dam built in the downstream area discharge floods in different layers, which can quickly guide water to the main river. The preconstructed engineering system can be used in a timely manner to prevent and control floods and debris flows induced by a sudden outburst of glacial lakes in areas with important facilities and inhabitants enduring the risk of natural hazards. Prevention and control systems can separate floods and debris flows and dissipate their energy. The groups of ground sills and check dams gradually dissipate the energy of floods, prevent high-energy boulders, and control the initiation of source materials in the channel and bank. Moreover, the systems can also separate the water and rocks in dilute debris flows or debris flows with high bulk densities but low viscosities. The diversion dams also enhance the separation function and keep the flood and debris flow discharge in the lower and upper channel to the main river.

A river course ecological treatment system for use in a river includes a plurality of plastic retaining dams disposed in the river that receive and divide the river course into sequential retaining regions arranged in a direction from upstream to downstream; a plurality of ecological biological water purification systems disposed in the sequential retaining regions and each ecological biological water purification system being located between any two adjacent plastic retaining dams of the plurality of plastic retaining dams to purify water within the sequential retaining regions and discharge purified water; and at least one damp land ecological water purification system that is disposed beside the river and that includes a rainwater channel disposed along the river; aquatic plants disposed in the rainwater channel are effective to purify water flowing within the rainwater channel; and draining vents provided in the rainwater channel that discharge purified water into the river course.

A system and method to provide water and sediment flow through a dam or rock jetty, including a plurality of flow pipes positioned through the dam or jetty to receive water carrying sediment and a principal flow pipe to receive flow from the plurality of flow pipes and to deposit water and sediment a predetermined distance to the rear of the dam or jetty. A continuous trough may be mounted on the jetty forward face to efficiently capture water and sediment at entrances of the plurality of flow pipes. A system and method is also provided to suppress wave action against a shoreline and to collect sediment to build up the shoreline, comprising shelves extending out from a front wall of each body section, below a plurality of flow pipes, the shelves for shearing a wave and dispersing and using wave energy to direct sediment through the flow pipes.

A system and method to provide water and sediment flow through a dam or rock jetty, including a plurality of flow pipes positioned through the dam or jetty to receive water carrying sediment and a principal flow pipe to receive flow from the plurality of flow pipes and to deposit water and sediment a predetermined distance to the rear of the dam or jetty. A continuous trough may be mounted on the jetty forward face to efficiently capture water and sediment at entrances of the plurality of flow pipes. A system and method is also provided to suppress wave action against a shoreline and to collect sediment to build up the shoreline, comprising shelves extending out from a front wall of each body section, below a plurality of flow pipes, the shelves for shearing a wave and dispersing and using wave energy to direct sediment through the flow pipes.

This patent pertains to secondary containment systems. One implementation includes a support assembly that includes an elongate post member and a stabilization plate. In one instance, a stabilization plate is mounted on the elongate post member to reduce movement of the elongate post member when the stabilization plate is embedded in the ground. Another implementation includes a panel splice assembly including reinforcing members that secure overlapping, corrugated panels.

This patent pertains to secondary containment systems. One implementation includes a support assembly that includes an elongate post member and a stabilization plate. In one instance, a stabilization plate is mounted on the elongate post member to reduce movement of the elongate post member when the stabilization plate is embedded in the ground. Another implementation includes a panel splice assembly including reinforcing members that secure overlapping, corrugated panels.

A river course ecological treatment system essentially comprises a plurality of ecological biological water purification systems and a plurality of plastic retaining dams disposed along a river course, and at least one damp land ecological water purification system disposed beside the river course. The plastic retaining dams separate the river course into several retaining regions. The ecological biological water purification systems purify the water in the retaining regions by microorganism purification. Afterward, the water purified by the ecological biological water purification systems is introduced into rainwater channels of the at least one damp land ecological water purification system. After being purified by aquatic plants in the at least one damp land ecological water purification system, the water returns to the retaining regions the downstream portion of the river course. Therefore, a river improvement system capable of performing both step-by-step treatment and joint treatment is effectuated.

A reusable flood barrier that may be easily collapsed and deployed is disclosed. The barrier may comprise a flexible sheet, a plurality of parallel wall support members, a plurality of parallel base support members, a limiter configured to hold the wall up relative to the base in an erected configuration, and a hinge. After closing the barrier at the hinge, the barrier may be rolled up for easy portability and storage. The barrier is flexible, and while erected it can bend to form convex or concave curves in the barrier wall to enable construction of a flood barrier that goes around corners.