Earticle

초록

영어

During a recent earthquake of magnitude of 5.4 in Pohang, Gyeongsangbuk-do Province, 6.5 cm of land creeping was observed on the wire system drawing keen attention from the public. According to the Korea Forest Service’s “Basic Survey on Land Creeping in Pohang” commissioned by the Korean Association of Soil and Water Conservation, only 19 sites of 694 suspected land creeping sites were identified. Consequently there is a need to establish a status survey method for land creeping and to develop algorithms for determining the priority of land creeping. The status survey on land creeping is carried out by the following: 1) a preliminary survey to identify the natural and social environment of the surrounding area based on aerial photos, topography and existing survey data, 2) aa field survey to identify topographical and geological features, vegetation and hydrology in narrow areas including areas undergoing land creeping, 3) a natural environmental impact survey to identify impacts of land creeping on the surrounding natural environment, and 4) a topographical and surface movement survey to identify the situation, range, direction and amount of movement of land creeping. A mechanism analysis is also carried out to determine the movement mechanism of a block undergoing land creeping and to quantitatively identify the relevant factors affecting land creeping activity. The mechanism analysis is carried out by the following: 1) a geological survey (geophysical exploration, boring survey, and geophysical logging) to determine the necessary construction methods for land creeping prevention, 2) a survey on soil characteristics (intrusion experiment, soil and rock experiment, clay mineral experiment, age dating survey, and drilling observation survey), 3) a hydrologic survey (meteorological and ground-water survey), and 4) a survey on land creeping dynamics (surface movement and underground change survey). Currently, the land creeping is caused by a combination of topography, geology, geological structure and ground-water, and various countermeasures should be applied depending on the cause. Prevention works for land creeping are divided into 1) control works (surface-water drainage works, ground-water drainage works, soil retaining works, loading embankment works, gas exclusion works and check dam) to reduce or eliminate factors that cause land creeping and 2) restraint works (pile works, shaft works, and anchor works) to increase the structural stability of land creeping.

키워드

저자

• Kun Woo Chun [ College of Forest and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea ]
• Jung Il Seo [ Department of Forest Resources, Kongju National University, Yesan 32439, Republic of Korea ]
• Suk Woo Kim [ College of Forest and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea ] Corresponding Author
• Youn Tae Lee [ The Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea ]
• Su Jin Jang [ College of Forest and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  강원대학교 산림과학연구소 학술대회

• 간기

  부정기

• 수록기간

  2017~2024

• 십진분류

  KDC 526 DDC 634