Title: COUNTERMEASURES FOR SCOUR AT SPILL-THROUGH BRIDGE ABUTMENTS
Abstract: Experimental data for the use of riprap and cable-tied blocks to protect the fill material at spill-through bridge abutments are presented, including data by Eve (1999) for riprap, and by Hoe (2001) for cable-tied blocks. The experiments were undertaken under clear-water conditions, which are relevant to bridge abutments situated in the floodplain. Eve (1999) studied the use of riprap at spill-through bridge abutments under clear-water scour conditions. She determined that riprap is an effective protection for spill-through abutment fill material. A particular focus of the project was the use of an apron of riprap to protect the toe of the spill-through slopes. Based on her observations of progressive failure of the abutment embankments, she developed a relation for determining the extent of protection. Hoe (2001) undertook similar investigations to those of Eve, using cable-tied blocks in place of riprap. The same experimental flume and abutment and flow configurations were used in both studies. Hoe determined that although cable-tied blocks can offer protection to spill-through abutment fill material, the technique is probably inferior to the use of riprap.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot