Research On Some Problems In Emending Of Technical Regulation For Building In Expansive Soil Regions Of Guangxi

Investigation Design Construction & Maintenance Regulation for Industrial and Civil Building in Expansive Soil Regions of Guangxi ,promulgated 18 years ago, has played a great role for construction projects in Guangxi' expansive soil regions and accumulated rich experience. During the past more than 10 years, studies of expansive soil problems at home and aboard have developed gradually, and made quite a number of scientific research achievements. Based on the mentioned above, the thesis puts forward ten problems in the existing regulation, and analyzes characteristics and deficiency of the domestic codes and regulations in being. Furthermore, according to the classification of expansive soil by types of causes of formation, the characteristics and engineering property are summarized and distributing charts are protracted. Next, differentiation and classification of expansive soil are thoroughly analyzed and summarized, and a more scientific and applicable method is advanced in accordance with Guangxi's geology and climate. Finally, based on sum-up of the character, and causation of expansive soil slide, considered fully the characteristics of expansive soil, it analyzes the inner relation of "water content-suction pressure-strength" for expansive soil silde by unsaturated soil strength theory, and raises suggestions for analysis of slope stability and for remedy measurement. The research fruits of this thesis will have important value for the emending and workout of Technical Code for Building in Expansive Soil Regions of Guangxi.