Transport of Sand and Partly Cohesive Sediments in a Circular Pipe Run Partially Full

Many sediment deposits contain not only a granular but also a mineral and/or organic cohesive fraction, which has the potential to change significantly the erosion response when compared to noncohesive sediment deposits. Sediment deposits containing a low proportion of cohesive sediment display a specific, transitional behavior between cohesive and noncohesive sediments. In the past, several studies have examined partly cohesive sediment, however, the quantification of its erosion behavior is still unsatisfactory. In an attempt to advance the understanding and qualitative description of erosion and transport of mixed sediments in pipes, a comprehensive experimental investigation on the erosion behavior was designed. Tests were conducted in a flume with semicircular cross section with a diameter of 0.39 m using fine sand with a d50 =0.19 mm and partly cohesive sediment deposits being a mixture of sand and clay with proportion of 3–10% by weight of clay. Tests covered a range of flow conditions with Froude ...

[1]  M. Huygens,et al.  Influence of the Cross-Section on the Erosion Criteria for Partly Cohesive Sediments , 1994 .

[2]  R. W. Crabtree,et al.  Sediments in Sewers , 1989 .

[3]  Thorkild Hvitved-Jacobsen,et al.  Urban Drainage Impacts on Receiving Waters , 1996 .

[4]  Jose J. Ota,et al.  Urban Storm Sewer Design: Approach in Consideration of Sediments , 2003 .

[5]  H. Einstein,et al.  The Bed-Load Function for Sediment Transportation in Open Channel Flows , 1950 .

[6]  F. R. Hama.  Boundary Layer characteristics for smooth and rough surfaces , 1954 .

[7]  Gustavo Perrusquía,et al.  Bedload Transport in Storm Sewers. Stream Traction in Pipe Channels. , 1991 .

[8]  Robert Banasiak,et al.  The erosion behaviour of biologically active sewer sediment deposits: observations from a laboratory study. , 2005, Water research.

[9]  M. Yalin.  On the Determination of Ripple Geometry , 1985 .

[10]  Yee-Meng Chiew,et al.  Effect of Bed-Load Movement on Flow Friction Factor , 1998 .

[11]  Helen Mitchener,et al.  Erosion of mud/sand mixtures , 1996 .

[12]  Richard Ashley,et al.  The Deposition and Erosion of Sediments in Sewers , 1992 .

[13]  Stephen E. Coleman,et al.  Closed-Conduit Bed-Form Initiation and Development , 2003 .

[14]  Peter Ackers,et al.  Sediment Transport: New Approach and Analysis , 1973 .

[15]  Enrique Mauricio Alvarez-Hernandez.  The influence of cohesion on sediment movement in channels of circular cross-section , 1990 .

[16]  Van Rijn,et al.  Closure of "Sediment Transport, Part III: Bed Forms and Alluvial Roughness" , 1984 .

[17]  R. A. Kleijwegt.  On sediment transport in circular sewers with non-cohesive deposits , 1992 .

[18]  Jørgen Fredsøe,et al.  Shape and Dimensions of Stationary Dunes in Rivers , 1982 .

[19]  H. Shen,et al.  Bed Form Resistances in Open Channel Flows , 1990 .

[20]  Robert Banasiak,et al.  ADV measurements of turbulence over an eroded sediment bed in a semicircular flume , 2004 .

[21]  J. Nikuradse.  Stromungsgesetze in rauhen Rohren , 1933 .

[22]  Richard Ashley,et al.  The Quality of Sewage Flows and Sediment in Dundee , 1990 .

[23]  Richard Ashley,et al.  Near bed solids transport in sewers , 1996 .