拦沙环工程抗风蚀性能研究

Resistance of Sand-Blocked Loop Engineering to Wind Erosion

拦沙环治沙是一种新的治沙、防沙、抗风蚀技术。其利用风沙搬运功能,将拦截到的沙子筑成拦沙大坝,并且不断提升和拦截,从而实现以沙治沙目的。通过在野外风沙环境风洞内,对不同尺寸规格的拦沙环在不同风速条件下进行测试。并计算积沙量、观察和分析其拦沙效应、抗风蚀性能,从而最终得出该技术可行性的结论。

Sandy desertification is one of the most serious environmental problems in the world. Sand-blocked loop engineering, as a new technique for sand-control, takes full advantage of wind's powerfully transporting dynamics and gradually accumulates sands under it. Finally, a sandbank will be constructed and the sand-blocked loop be lifted along with the sandbank being piled up. Then the shifting sands can be continuously blocked by sandbank. Under different wind speeds, we had tested the effect of sand-blocking loops with different sizes in a field wind tunnel. It has been concluded that the technique of sand-blocked loop engineering is feasible in practice suggested by analysis on the efficiency and capacity of the engineering.