Study on bearing performance of rectangular closed diaphragm walls as bridge foundation under vertical loading;

Diaphragm wall-soil-cap interaction in rectangular-closed-diaphragm-wall bridge foundations;

The key technique for bridge foundation construction in plateau perma frost areas;

Research purposes: The analysis are made for the purpose of seeking the key process,the technology and the method related to the safety of traffic and construction when conducting reconstruction of bridge and culvert base and on existing line and on second line with jacking method.