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| Wind tunnel experimental study on desert surface of Kubuqi desert,Inner Mongolia |
| WANG Yi-tong, TANG Ze-jun, CHEN Chao, CUI Yuan-yuan, WANG Jia |
| College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China |
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Abstract The consolidated soil layer (CSL) was composed of fly ash (FA) and polyacrylamide (PAM), and its property was similar to soil. The resistance to wind erosion of CSLs was studied using an indoor wind tunnel under simulated wind erosion conditions. The CSL was a mixture of FA (10% and 20%), PAM (0.05% and 0.1%) and the experimental soil (classified as a sandy soil), named as T1, T2, T3, and T4. The results showed that the threshold wind speed of the sandy soil was significantly increased due to the formation of CSL by FA and PAM, exhibiting an increasing trend with increasing addition rate of FA and PAM. The wind erosion amounts of different CSLs were all decreased when compared with that of the sandy soil. The resistance to wind erosion of the CSL consisting of 10% FA and 0.1% PAM was strongest.
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Received: 18 January 2017
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