First Workshop of the Thematic Network on SHP
How can civil engineering contribute to a better environmental integration? How can the construction costs of civil works be reduced? How the efficiency can be increased by an appropriate civil engineering?
Bolzano/Italy 18th September
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First Workshop of the Thematic Network on SHP
How can civil engineering contribute to a better environmental integration ? ¾ Go underground where possible (covered structures) ¾ Reduce height of structures (ungated weirs if possible) ¾ Avoid installation of trashrack cleaning machines (selfcleaning trashracks) ¾ Design fish-passes as small river with large boulders (rapid - pool system) with appropriate minimum discharge ¾ Avoid construction of new access roads (choice of site) ¾ Open air penstocks without expansion joints (no need for maintenance ad access roads) ¾ …… Bolzano/Italy 18th September
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First Workshop of the Thematic Network on SHP
How can the construction costs of civil works be reduced? ¾ Improve overall design (general conception) ¾ Develop standardized civil structures (especially intakes and weirs) ¾ Use alternative material and concepts (rubber weirs, PVC or Glass Fiber Reinforced Plastic penstocks, a.s.o. ¾ Avoid river diversion works during construction (overall design, prefabricated structural elements) ¾ Develop alternative flood safety concept (e. g. fuse plug spillways, slide gates lowering in the body of the weir instead of raising up in case of flood) ¾ …… Bolzano/Italy 18th September
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First Workshop of the Thematic Network on SHP
How the efficiency can be increased by an appropriate civil engineering? ¾ Civil engineering can’t be neglected (competent designer required) ¾ Improve the design of intakes (high diversion rate and better handling of sediments and floating debris) ¾ Develop simple devices for water level control upstream of weirs ¾ Reduce head losses by compact design ¾ Reduce operation cost by innovative overall design ¾ …… Bolzano/Italy 18th September
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