移動式防洪系統(tǒng)力學性能及滲漏特性試驗研究
[Abstract]:Mobile flood control system is a standardized flood control method with high safety, but the application of mobile flood control system in China is not many, and the research on its technical performance is one of the limiting factors. Based on the mobile flood control wall project in a city, this paper designs a mobile flood control wall comprehensive test base, a water storage test and a column loading and unloading test, and studies the installation method, mechanical performance and leakage characteristics of the embedded parts of the mobile flood control system. The results show that both the direct installation method and the reserved groove method can meet the requirements of construction technology and normal operation, but the former is better than the latter. When the water level is more than 1.5 m, the leakage will increase rapidly, and it can reach 300 L / h when the water level reaches 1.7 m. The leakage phenomenon of the mobile flood control wall after impoundment is shown as follows: (1) the leakage of the mobile flood control wall appears to change exponentially with the water level above 1.5 m; In the process of loading and unloading (0 ~ 100 k N), the plastic deformation of concrete will first be caused, and then the residual displacement of the column will be produced. The loading process of the column indicates that the column is subjected to force. The failure process of the pre-buried concrete system and the base concrete system should be gradually developed from the two sides of the embedded concrete to the surface of the water.
【作者單位】: 華北水利水電大學水利學院;河南省水環(huán)境治理與生態(tài)修復院士工作站;黑龍江省三江工程建設管理局;
【基金】:國家自然科學青年基金項目(51309101) 國家自然科學基金面上項目(51679092)
【分類號】:TV32;TV87
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