STUDY ON ENGINEERING GEOLOGICAL PROBLEMS AND PREVENTION MEASURES OF THE SUPER LARGE BRIDGE KEDI BALINGHE SHANGHAI-KUNMING PASSENGER SPECIAL LINE

The super large bridge Kedi Balinghe is one of the key projects of the Guizhou section of the Shanghai-Kunming passenger special line. The geological condition is extremely complicate of the bridge project. Influence factors are topography and geomorphology, formation lithology, geological structure, et al. Rockfall, landslide, rock heap, karst are frequently. Use the surveying and mapping, geophysical prospecting and drilling data to study the type, scale, harmfulness of the engineering geological problems and the countermeasures. The research results have offered the basis for circuit scheme, and have great meanings in design, construction and operation of the bridge.