CAJ | 학술논문

为确定一种新型水力吹填用水沙分离装置———泥沙浓缩旋管关键部件清液排放口的布置形式，使用数值模拟与物理模型试验相结合的方法对初步拟定的几种清液排放口形式进行了研究，并综合考虑工程适用性与浓缩效率，选取垂直主管布置排放管的外排放口作为该装置清液排放口。结果表明，该排放口形式的泥沙浓缩旋管不但可以提高吹填造陆入场泥沙浓度，同时还会降低入场泥沙细颗粒含量，从而改善吹填泥沙的工程性质。
위학정일충신형수력취전용수사분리장치———니사농축선관관건부건청액배방구적포치형식，사용수치모의여물리모형시험상결합적방법대초보의정적궤충청액배방구형식진행료연구，병종합고필공정괄용성여농축효솔，선취수직주관포치배방관적외배방구작위해장치청액배방구。결과표명，해배방구형식적니사농축선관불단가이제고취전조륙입장니사농도，동시환회강저입장니사세과립함량，종이개선취전니사적공정성질。
In this paper, it is proposed a new type of water-sediment separation device named sediment concentrated spiral tube ( SCST) , which is used in hydraulic fill. To confirm layout form of clear liquid discharge port—key components of the device, several tentative of clear liquid discharge port of SCST were investigated by numerical simulation and physical experiment. Considering the engineering applicability and efficiency of concentration, this paper selected the outside discharge port, whose discharge pipe was perpendicular to the main pipe, as the recommended clear liquid discharge port for SCST. Overall, the results showed:SCST, with the selected layout form, not only could improve sediment concentration for hydraulic fill, but also reduced the content of fine particles, as well as improved the engineering properties of fill sediment.