Evaluation of causes of excessive settlements of pavements behind bridge abutments and their remedies - phase I progress report no. 1 (84-12-2)
Abstract
Bridge approach settlement problem is quite extensive in the
U.S.A. This problem has been investigated since early 1960s, but
no satisfactory solution has been achieved. A comprehensive
literature search has been carried out with the aim of understanding
the problem and the approaches of many investigators.
The pertinent works have been reviewed thoroughly and the
highlights of these previous studies are presented in this
report. It was felt that the experience of various agencies
involved in construction of roads and highways would be immensely
helpful in deciding the course of this research. Hence, a survey
was conducted by sending a questionnaire to various agencies
involved in construction and maintenance of roads and highways.
The responses have been carefully analyzed and presented in the
report. At the end, a discussion of the findings and
recommendations for further research have been made.