TAILIEUCHUNG - Dissertation summary: Research on characteristics of Quaternary sediments and the relations to land subsidence in the West area of Hanoi

Research objectives: To elucidate of characteristics of lithological composition, physicalmechanical properties and distribution of Quaternary sediments, the relationships between sediment characteristics, especially, the soft soil layers in the West Hanoi to land subsidence and ground collapse; then to propose prevention measures for sustainable development of infrastructure. | MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY NGUYEN VAN BINH RESEARCH ON CHARACTERISTICS OF QUATERNARY SEDIMENTS AND THE RELATIONS TO LAND SUBSIDENCE IN THE WEST AREA OF HANOI Speciality Geology Code 62 44 02 01 SUMMARY OF GEOLOGY DOCTORAL THESIS HA NOI 2015 The thesis was completed at Graduate University of Science and Technology Vietnam Academy of Science And Technology Scientific Supervisors 1. Assoc. Prof. Dr. Do Minh Duc 2. Assoc. Prof. Dr. Doan Dinh Lam Reviewer 1 Dr. Do Van Nhuan Reviewer 2 Assoc. Prof. Dr. Nguyen Huy Phuong Reviewer 3 Assoc. Prof. Dr. Pham Quy Nhan This thesis is going to be defended at the council of doctorate thesis examiners of Graduate University at . .hour day. 2015. Thesis can be found at - National Library Hanoi - Library of Vietnam Academy of Science and Technology - Library of Graduate University of Science and Technology 1 PREFACE The West Hanoi formerly Hatay province was merged into Hanoi since 2008 this area in the process of urbanization at high speed. Geological characteristics in this area considered complex the limestone layer widely distributed high fractured and somewhere has underground karst. The Quaternary sediments include many kind and difference in ages origin composition physical - mechanical properties. Especially existence of the soft soil layer has thickness and distribution irregular. From 2007 to present in some places as Ngoc My Thach Than communes Quoc Oai district appeared many cracks on the walls of old constructions with low loading capacity and these cracks are expanding. Research results identified that the surface in this area being subsidence expressions of land subsidence complex and unpredictable. In additions some geological hazards have been occurred with damages and destroy constructions. Land subsidence and ground collapse occurred for many reasons and related to Quaternary sediment lithological composition

• Thạc sĩ - Tiến sĩ - Cao học
• Characteristics of Quaternary sediments
• Relations to land subsidence
• West area of Hanoi
• Physicalmechanical properties
• Dissertation summary
• Soft soil layers