초록 ▼

$\circ$ 암반특성평가 S/W 개발
- 수정 암반평가기법 개발
- 암석물성시험자료 자동처리 및 DB화를 위한 통계처리 프로그램 개발
- 절리분석 이미지프로세싱 프로그램 개발
$\circ$ 암반파괴균열탐지 해석기법 및 계측시스템 개발
- AE 균열탐지 실험실시스템 개발 및 축소모형시험 적용 검증
- 암반의 변형/손상 메커니즘 분석 및 해석기법 확립
- 현장 AE/MS 계측시스템 개발
$\circ$ 내공변위 자동계측시스템(TPMS)

$\circ$ 암반특성평가 S/W 개발
- 수정 암반평가기법 개발
- 암석물성시험자료 자동처리 및 DB화를 위한 통계처리 프로그램 개발
- 절리분석 이미지프로세싱 프로그램 개발
$\circ$ 암반파괴균열탐지 해석기법 및 계측시스템 개발
- AE 균열탐지 실험실시스템 개발 및 축소모형시험 적용 검증
- 암반의 변형/손상 메커니즘 분석 및 해석기법 확립
- 현장 AE/MS 계측시스템 개발
$\circ$ 내공변위 자동계측시스템(TPMS) 개발
- 터널 내공변위 자동계측시스템 개발
- 건설/운영중 터널에 대한 내공변위 자동계측감시시스템 현장적용 검증
$\circ$ 안전유지관리 공학적 지침(계측인자, 위험경고수준, 조치기준) 정립
- 지하구조물 위해요소 분석 및 파괴위험수위 예측 기법 개발
- 안전유지관리(구조물 변형파괴) 지침 정립
$\circ$ 안전진단 전문가시스템 개발
- 통합안전감시 프로그램 코딩
- 각 모듈의 통합 관리 프로그램 작성

Abstract ▼

In recent years, demands for underground structures and facilities have considerably increased throughout the world and urged many countries to construct various underground facilities as national projects according to their own needs. In particular, there have been increasing necessities for underg

In recent years, demands for underground structures and facilities have considerably increased throughout the world and urged many countries to construct various underground facilities as national projects according to their own needs. In particular, there have been increasing necessities for underground facilities in Korea partly because there is not enough space to accommodate the increasing population and industrial facilities, and partly because there are also inevitable needs for storing energy resources under environmental conservation.
Although field investigations for safety diagnostics of underground structures have periodically been performed, these activities basically aimed for identifying whether changes in the target of investigation satisfy the design criterion or not. This type of maintenance system is of course indispensable to assess the stability of an underground structure, but it has limitations to get information on potential hazards, which may happen in the near future. It strongly suggests a necessity of more active integrated safety monitoring system capable of predicting any serious problems, which might occur in an underground structure, and even providing appropriate measures for potential danger before it happens.
The main objective of the research is to develop an integrated safety monitoring system for underground structures. The detail targets of this research are as follow:
$\bullet$ Development of expert system for safety diagnostic
$\bullet$ Construction of field monitoring system
$\bullet$ Establishment of engineering guideline for safety maintenance of underground structures.
Brief descriptions of the results are as follow:
- A new expert system is developed. This system will be closely linked with field monitoring system. It provide a warning and a countermeasure according to hazard level.
- A tunnel profile monitoring system is constructed and is set up at two tunneling sites for field test. The daily displacement changes are monitored automatically based on a real time and displayed on a terminal through the Web.
- Physical modeling test is performed for tracking a crack formation around an underground opening by monitoring the AE signal.
- A prototype Microseismic Event(ME) measurement system is constructed and is installed at an underground mining. Also an operating program based on Labview is developed to process of measured data.
- A new rock classification system is developed. It makes up for the weak points in the current RMR and Q systems and shall be called KIGAM rock classification method.
- Damage controlled tests are performed numerically. CWFS(Cohesion Weakening Frictional Strengthening) model is employed. Two and three dimensional tests using the FLAC and the PFC show the appropriateness of the model better than that of the Mohr-Coulomb model for estimating the damaged zone.
- An engineering guideline for safety maintenance of underground structures is proposed. It will make possible to assess the stability of the structures after taking of measurements simply by comparing the measured values to the hazard warning level.

목차 Contents

• 제 1 장 연구개발과제의 개요...14
• 제 1 절 연구개발 목적 및 필요성...14
• 제 2 절 연구개발 내용 및 범위...15
• 제 2 장 국내외 기술개발 현황 분석...18
• 제 1 절 암반평가기법...18
• 제 2 절 암반균열탐지 AE/ME 계측기술...21
• 제 3 절 터널내공변위 원격자동계측기술...23
• 제 4 절 안전진단 및 안전유지관리 지침/기준...25
• 제 3 장 연구개발수행 내용 및 결과...30
• 제 1 절 암반평가기법 개발...30
• 제 2 절 암반균열탐지 AE/ME 계측시스템 개발...42
• 제 3 절 내공변위 원격자동계측시스템 개발...65
• 제 4 절 안전유지관리 공학적 지침 정립...76
• 제 5 절 암반구조물 통합 안전진단 전문가시스템 개발...93
• 제 4 장 목표 달성도 및 관련분야에의 기여도...110
• 제 1 절 목표 달성도...110
• 제 2 절 관련분야에의 기여도...111
• 제 5 장 연구개발 결과의 활용 계획...114
• 제 6 장 참고문헌...118