지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 안태봉
- 발행연도
- 2017
- 저작권
- 우송대학교 논문은 저작권에 의해 보호받습니다.
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Because of the 70% of Korea''s geography covered with mountains, civil works field mostly secure developing area by cutting mountain.
With the increasing number of industrial complex near the big city, securing site boundary became an important part of location requirement. So, it is necessary to utilize panel type retaining wall for the low-cost land purchase.
Also, the application of panel type retaining wall is increasing in railroad, road construction to minimize environmental damage and use land effectively.
Panel type retaining wall is a construction method to reinforce and protect in-situ ground with precast panel. And it''s method of reinforcement is pre-reinforcement concept to minimize ground loosening by excavation. And it is variously used in cut slope reinforcement in accordance with the kind of reinforcement, construction method, etc.
Panel type retaining wall system is the construction method that has the panel engraved with natural rock shape to improve the landscape. This system is developed to complete top-down method, and it is possible to have vertical cut, and to adhere to in-situ ground, improve construction ability by minimizing ground loosening and exclusion the trench and backfill process.
In this study the field test were performed to verify the construction ability about the vertical cut and complete top-down process. The behavior of panel type retaining wall adhered to in-situ ground analyzed by a series of site test, large scale loading test, conducting numerical analysis and measurement results during loading test.
With the increasing number of industrial complex near the big city, securing site boundary became an important part of location requirement. So, it is necessary to utilize panel type retaining wall for the low-cost land purchase.
Also, the application of panel type retaining wall is increasing in railroad, road construction to minimize environmental damage and use land effectively.
Panel type retaining wall is a construction method to reinforce and protect in-situ ground with precast panel. And it''s method of reinforcement is pre-reinforcement concept to minimize ground loosening by excavation. And it is variously used in cut slope reinforcement in accordance with the kind of reinforcement, construction method, etc.
Panel type retaining wall system is the construction method that has the panel engraved with natural rock shape to improve the landscape. This system is developed to complete top-down method, and it is possible to have vertical cut, and to adhere to in-situ ground, improve construction ability by minimizing ground loosening and exclusion the trench and backfill process.
In this study the field test were performed to verify the construction ability about the vertical cut and complete top-down process. The behavior of panel type retaining wall adhered to in-situ ground analyzed by a series of site test, large scale loading test, conducting numerical analysis and measurement results during loading test.
목차
Ⅰ. 서론 ······································································································11. 연구배경 및 목적 ············································································································12. 연구동향 ·····························································································································53. 연구방법 및 범위 ············································································································8Ⅱ. 이론적 고찰 ·····················································································111. 쏘일네일링 기본이론 ····································································································11가. 흙과 네일의 상호작용 ··························································································13나. 네일 벽체에 작용하는 토압 ················································································20다. 네일의 휨 저항력 ································································································242 쏘일네일의 거동특성 ·····································································································25가. 네일의 인장력분포와 최대인장력선 ··································································25나. 네일 벽체의 변형과 변위 ··················································································28다. 네일의 전면부 변위 및 두부거동 ······································································293 쏘일네일 벽체의 해석방법 ···························································································32가. 쏘일네일 벽체의 파괴유형 ··················································································32나. 한계평형해석 ··········································································································33다. 유사정적 해석방법 ································································································354. 수직굴착한계 ··················································································································405. 수치해석 ···························································································································42가. 수치해석 개요 ········································································································42나. MIDAS GTS NX ································································································43다. Mohr-Coulomb 이론 모델 ·················································································44Ⅲ. 현장시험 ···························································································501. 시험 개요 ·························································································································502. 자연암반형 패널 제작 ··································································································51가. 원지반 부착식 옹벽 ······························································································51나. 패널 제작 ················································································································523. 1차 현장시험시공 ··········································································································54가. 시험시공 개요 ········································································································54나. 지반조사 ··················································································································56다. 예비해석 ··················································································································57라. 시험시공 ··················································································································59마. 계측계획 ··················································································································63바. 1차 현장시험시공 결과분석 ················································································65사. 수치해석에 의한 거동분석 ··················································································674. 2차 현장시험시공 ··········································································································71가. 개요 ··························································································································71나. 지반조사 ··················································································································72다. 예비해석 ··················································································································73라. 시험시공 ··················································································································79마. 쏘일네일링 인발시험 ····························································································84Ⅳ. 대형재하시험 ···················································································851. 대형 재하시험 개요 ······································································································852. 시험하중 산정 ················································································································86가. 검토 개요 ················································································································86나. 검토 결과 ················································································································873. 대형재하시험 방법 및 계측 계획 ·············································································89가. 시험방법 및 하중 재하장치 ················································································89나. 하중 재하장치 설치계획 ······················································································90다. 하중재하 및 제하 방법 ························································································92라. 재하시험장치 설치순서 ······················································································94마. 대형재하시험 계측 계획 ······················································································974. 대형재하시험 결과분석 ·····························································································100가. 하중-침하곡선 분석 ····························································································100나. 하중 재하단계에 따른 옹벽 전면부 변위 분석 ············································102다. 쏘일네일링 발생 축력 분석 ··············································································106라. 쏘일네일 발생 응력 분석 ··················································································107마. 패널 작용 토압 분석 ··························································································110바. 지중경사계 계측결과 분석 ················································································111Ⅴ. 수치해석 ·······················································································1131. 수치해석 개요 ··············································································································1132. 해석조건 및 방법 ········································································································113가. 해석 조건 ··············································································································113나. 해석 적용 물성치 ································································································115다. 해석 순서 ··············································································································1153. 수치해석 결과 ··············································································································117가. 지반변위 및 응력 검토결과 ··············································································118나. 보강재 축력 검토결과 ························································································129다. 패널 응력 검토결과 ····························································································134VI. 결과분석 및 고찰 ········································································1361. 대형재하시험에 의한 지반변위 분석 ····································································1362. 옹벽 전면부의 변위 분석 ·························································································1373. 보강재의 축력 및 응력 분석 ···················································································1394. 고찰 ·································································································································142ⅥI. 결론 ································································································144
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