科目名 Course Title
Geodynamics [地盤動力学 E]
講義題目 Subtitle
責任教員
Instructor
石川 達也 [Tatsuya ISHIKAWA] (大学院工学研究院)
担当教員 Other
Instructors
開講年度 Year
2013
時間割番号 Course Number (E3)
092206 (31010)
開講学期 Semester
２学期
単位数
2
Number of Credits
補足事項 Other Information
キーワード Key Words
soil liquefaction, earthquake, soils and foundations, dynamic behavior, disaster prevention measure
授業の目標 Course Objectives
Dynamics behavior of soil ground and earth structure subjected to vibration and soil liquefaction at the earthquake are
studied. First, dynamic strength?deformation characteristics of soil and its numerical modeling are outlined as well as testing
method of dynamic behavior of soils. Next, mechanism of soil liquefaction and its damage to foundation and earth structure are
explained along with events triggering soil liquefaction. Finally, methods of microzonation for liquefaction-induced ground
failure, typical liquefaction assessments based on numerical methods and disaster prevention measure for soil liquefaction are
introduced.
到達目標 Course Goals
A student taking a course attains the engineering design ability to deal with geotechnical problems encountered with actual
designing of earth structures and foundations rationally based on the Geodynamics.
授業計画 Course Schedule
1. Dynamic behavior of soil ground and its numerical modeling
Descriptions of the dynamics behavior of soil ground by various kinds of dynamic loading, with its representative modeling
methods.
2. Mechanism of soil liquefaction and its damage
Descriptions of the mechanism of soil liquefaction at an earthquake in terms of soil mechanics. Introduction of liquefactioninduced ground failure at a massive earthquake, e.g. damage due to soil liquefaction at the 1995 South Hyogo Prefecture
Earthquake.
3. Testing method of liquefaction strength
Descriptions of the testing methods of laboratory element tests and in-situ tests for the evaluation of dynamic
strength?deformation characteristics and liquefaction strength of soils and foundations, e.g. cyclic triaxial compression test
and standard penetration test.
4. Factors affecting soil liquefaction
Descriptions of the events triggering soil liquefaction in terms of soil property, initial stress state, drainage condition and
characteristics of seismic vibration.
5. Prediction methods of soil liquefaction
Descriptions of various prediction methods of soil liquefaction ranged from simple methods based on a topographic map and a
liquefaction history to detailed methods based on the results of laboratory element tests and seismic response analysis.
Introduction of numerical analysis such as dynamic response analysis and zoning methods for liquefaction-induced instability of
ground.
6. Disaster prevention measure for soil liquefaction
Introduction of liquefaction countermeasures based on various principles for the disaster prevention of liquefaction-induced
ground failure, and descriptions of the effects on the improvement in the earthquake-resistant performance of foundations and
earth structures.
準備学習（予習・復習）等の内容と分量 Homework
While preparation for lecture sessions is not essential, the students are instead encouraged to review well the highlights of the
lectures afterwards. Assignments, handed out at appropriate intervals, will assist their learning.
成績評価の基準と方法 Grading System
based on attendance (10%), the results of reports and presentations given during the course (40%) and final examination (50%).
テキスト・教科書 Textbooks
There is no one text that adequately responds to the goals and topics of this lecture. Some readings and handouts will be
prepared for you. Please contact the instructor if you need further advice.
講義指定図書 Reading List
参照ホームページ Websites
研究室のホームページ Website of Laboratory
備考 Additional Information