Geotechnical reconnaissance of the 2010 Darfield (Canterbury) earthquake

摘要: On 4 September 2010, a magnitude Mw 7.1 earthquake struck the Canterbury region on South Island of New Zealand. The epicentre was located in Darfield area about 40 km west city Christchurch. Extensive damage inflicted to lifelines and residential houses due widespread liquefaction lateral spreading areas close major streams, rivers wetlands throughout Christchurch Kaiapoi. Unreinforced masonry buildings also suffered extensive region. Despite severe infrastructure houses, fortunately, no deaths occurred only two injuries were reported this earthquake. From an engineering viewpoint, one may argue that most significant aspects 2010 Earthquake geotechnical nature, with being principal culprits for damage. Following earthquake, intensive reconnaissance conducted capture evidence perishable data from event. surveys performed foot, by car helicopter over period six days. A broad-brush field first days, followed pin-point investigations at specific locations including detailed site inspections testing using: Dynamic Cone Penetration Test (DCPT), Swedish Weight Sounding (SWS), Spectral Analysis Surface Waves (SASW). This paper summarizes observations preliminary findings early work.