ABSTRACT
The most intensive research project in Civil Engineering at Washington at that time was on the properties of the concrete designed for use in construction of Hoover Dam. The primary complicating factor in the dynamic response is that it is influenced strongly by dynamic interaction of the dam with its environment — specifically by dam–reservoir interaction and by dam–foundation interaction. For the test of Dongjiang Dam, bore holes were drilled into the foundation rock to a depth of forty meters at a location 800 meters downstream of the dam and centered in the canyon. In a secondary test series on Dongjiang Dam, the system was excited by small explosive charges suspended in the reservoir. The final dam tested in this US–China program of cooperative research was Longyangxia, located near the headwaters of the Yellow River.
