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意大利庞特科尔沃水电站的引水渠道,利用2.5厘米厚的预应力挠性混凝土预制薄板作衬砌,效果很好。它与一般混凝土护面相比,既具备坚固耐久的优点,又能避免在现场浇制时难免的开裂现象及预制刚性混凝土块时常有的接缝脱开和位移等缺点。与沥青护面相比,它既具备沥青护面能粘贴渠床并随渠基变动而自行调整和适应等优点,又避免了沥青护面需要经常维修的缺陷。
The water diversion channel at Pontecorvo, Italy, works well with a 2.5 cm thick prestressed flexible concrete prefabricated sheet lining. Compared with the general concrete face, it not only has the advantages of strong and durable, but also avoid the inevitable cracking phenomenon in the field pouring and precast rigid concrete blocks often disconnect and displacement joints and other shortcomings. Compared with asphalt surfacing, asphalt surfacing has the advantages of being able to stick the drainage bed and adjusting and adapting itself as the foundation is changed, and avoids the defects that the asphalt surfacing needs regular maintenance.