A SURVEY ON SLOPE FAILURES

Of the disasters caused to the railway structures of JNR, the disaster caused by the failure of slope accounts for 30 percent in the number of occurrence and 35 percent in damage. The countermeasure against the disaster by slope failure occupies an important portion of the disaster prevention plan for the railway structures. As to the maintenance of railway structures, it is also important to know what are the factors influencing the slope failures.