Engineering Technologies of Rural Obsolescent Toft Reclamation in Hilly Area of Southwest China

Although reclamation of rural obsolescent toft has become more and more pervasive in China，there are no specific criteria about the key technology in the process of reclamation.Based on investigation and research of 54 reclamation area sites in Longmen Town of Kai County，Chongqing city，engineering measures of residence demolishment，waste treatment technology and earthwork balance project of plots during the process of rural obsolescent toft reclamation were proposed and discussed.And characteristices of rural Obsolescent toft are taken into consideration in the discussion，such as the area of the site is too small and the distrbution is too scattered.Suggestions are as follows：①engineering measures of residence demolishment should be more nichetargeting for different types of house.And available materials，such as bricks and stone slabs，which are removed from discarded rural obsolescent toft，should be recycle according to the related engineering design；②waste treatment technologies mainly include four different kinds of ways；③soil in earthwork balance project of plots can be furnished by four various ways.Results could provide a reference to the rational implementation of similar reclamation projects.