• Title/Summary/Keyword: roof stone

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Petrological and Geological Safety Diagnosis of Multi-storied Stone Pagoda in the Daewonsa Temple, Sancheong, Korea (대원사 다층석탑의 지질학적 및 암석학적 안전진단)

  • 이찬희;서만철
    • Economic and Environmental Geology
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    • v.35 no.4
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    • pp.355-368
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    • 2002
  • The multi-storied Daewonsa stone pagoda (Treasure No. 1112) in the Sancheong, Korea was studied on the basis of deterioration and geological safety diagnosis. The stone pagoda is composed mainly of granitic gneiss, partly fine-grained granitic gneiss, leucocratic gneiss, biotite granite and ceramics. Each rock of the pagoda is highly exfoliated and fractured along the edges. Some fractures in the main body and roof stones are treated by cement mortar. This pagoda is strongly covered with yellowish to reddish brown tarnish due to the amorphous precipitates of iron hydroxides. Dark grey crust by manganese hydroxides occur Partly, and some Part coated with white grey gypsum and calcite aggregates from the reaction of cement mortar and rain. As the main body, roof and upper part of the pagoda, the rocks are developed into the radial and linear cracks. Surface of this pagoda shows partly yellowish brown, blue and green patchs because of contamination by algae, lichen, moss and bracken. Besides, wall-rocks of the Daewonsa temple and rock aggregates in the Daewonsa valley are changed reddish brown color with the same as those of the pagoda color. It suggests that the rocks around the Daewonsa temple are highly in iron and manganese concentrations compared with the normal granitic gneiss which color change is natural phenomena owing to the oxidation reaction by rain or surface water with rocks. Therefore, for the attenuation of secondary contamination, whitening and reddishness, the possible conservation treatments are needed. Consisting rocks of the pagoda would be epoxy to reinforce the fracture systems for the structural stability on the basements.

Present Deterioration Situation and Study on the Conservation Treatment of the Seven-story Stone Pagoda of Jeongamsa Temple (정선 정암사 수마노탑의 손상현황과 보존처리연구)

  • Hwang, Jeong Eun;Kim, Sa-Dug;Jung, Hee Soo
    • 보존과학연구
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    • s.34
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    • pp.110-122
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    • 2013
  • The Seven-story Stone Pagoda of Jeongamsa Temple consists of dolomitic limestone. The surface of the stone stupa is efflorescene. There are spaces between parts in the stereobate and part of roof at the fifth story and above. The space between parts is colonized by biological contaminants. There are breakaway parts in the third, fifth, sixth, seventh story. The dry and wet cleaning of all the biological contaminants, efflorescene. The steam cleaning of rest of efflorescene. The use of poultice with oxalic acid, were done to remove the rust. Breakaway parts are inosculated by L30 and Por-rok. Spaces between parts are waterproofing by Porrok. After treatment, the efflorescene of part of waterproofing are comparatively scarce. So waterproofing is effective at reduced efflorescene and waterproof.

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Stability Evaluation of Multi-storied Stone Pagoda in the Daewonsa Temple using Three-dimensional Image Analysis (3차원 영상분석을 이용한 대원사다층석탑의 안정성 평가)

  • Jun, Byung-Kyu;Lee, Chan-Hee;Suh, Man-Cheol
    • Journal of Conservation Science
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    • v.22
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    • pp.31-42
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    • 2008
  • A stone cultural heritage often lacks design drawing and detailed geometric informations, thus it becomes more difficult to conservation and restoration. Even though there is active database of detail shape information and numerical measurement for stone monuments, most of the data is in hard-to-utilize two-dimensional images. The new technology developed to overcome this problem is three-dimensional image scanning system. The multi-storied stone pagoda of the Daewonsa temple was analysed with 3D scanning image data then survey map with orientation displacement was evaluated. The difference of each side became apparent with the members of the stone properties was measured, also horizontal and vertical displacement occurred. Horizontal displacement occurred in increasing severity from left to right and from body section to upper part. The 8th roof stones are leaning toward northwest direction due to lateral displacement. The evaluation and measurement of displacement could cause a little errors due to the characteristics uneven surface of stone monuments, computer program and mistakes from the researcher. In future, more precise measurement and stability studies should be done to suggest that accurate data for conservation and understanding of damage condition can be provided.

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Deterioration and Conservation Treatment of the Three Storied Stone Pagoda in Seoak-ri, Gyeongju (경주 서악리 삼층석탑의 훼손상태 및 보존처리)

  • Lee, Myeong-Seong;Jeong, Min-Ho;Jung, Young-Dong;Lee, Chan-Hee
    • Journal of Conservation Science
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    • v.18 s.18
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    • pp.63-74
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    • 2006
  • All rock materials of the three storied stone pagoda in Seoakri were composed of light gray alkali granite with medium grained and developed with small mialolitic cavities. This stone pagoda is preserving almost archetype except the head part because there was repair work already. But, foundation, basement and roof rocks are serious state by microbial invasion such as lichens. Because there are tree and grass that cause direct effect to stone pagoda surrounding. Therefore, conservation treatment executed the primary dry cleaning and secondary wet cleaning treatment. Stone surface is partly not removed well such as lichens which part removed using cleansing device that use high temperature steam. Some treated part concrete and epoxy resin remove and retreatment with mixing talc and alkali granite powder to epoxy resin. Did color matching at mixing process of epoxy resin and fillers to properties with set the feel of a material. Also, drainage ditched to minimize inflow of rainwater fall from slope that is on the east of stone pagoda, tree and grass in stone pagoda surrounding wished to do remove and control occurrence of lichens hereafter minimizing moisture conteats.

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Deterioration Analysis and Source Area on Rock Properties of the Seokgatap Pagoda in the Bulguksa Temple, Korea (불국사 석가탑의 풍화훼손도 분석 및 기원암의 산지추정)

  • Lee, Myeong-Seong;Lee, Chan-Hee;Suh, Man-Cheol;Choi, Seok-Won
    • 한국문화재보존과학회:학술대회논문집
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    • 2004.10a
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    • pp.15-24
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    • 2004
  • The Seokgatap pagoda composed of mainly alkali granite and other minor pink-feldspar granite, fine-grained granite, granodiorite, diorite, gabbro, and tuff. Despite the small loss and damage derived from joints, its peel-off and exfoliation are serious enough to cause the heavy deterioration on the stone surface. The chemical and petrological weathering has partly replaced the original rock-forming minerals with clay minerals and iron oxyhydroxides. Based on the petrogenesis, rock materials of the pagoda is very similar to rocks of Dabotap pagoda and the Namsan granite in the Gyeongju. The central fart of the pagoda has sunken highly, which caused all the corners to split and the structural transformation to become worse. The reverse V-shaped gaps between the materials have broken stones filled in a coarse way. The iron plates inserted between the upper flat stone laid on other stones and tile pagoda body in the north and east side has been exposed in the air and corroded, discoloring of the adjacent stones. The overall diagnosis of the Seokgatap pagoda is the deteriorated functions of the stone materials, which calls for a long-term monitoring and plans to reinforce the stone surfaces. But the main body including the pagoda roof stone needs washing on a regular basis, and the many different cracks should be fixed with glue by using the fillers or hardeners designed for stone cultural properties after removing the cement mortar. In case of the replacement of the stone materials with new stones, it's necessary to examine the pagoda for the center of gravity and support intensity of the materials. The structural stability of the pagoda can be attained by taking a reinforce measure in geotechnical engineering and making a drainage. The ground humidity, which has aggravated weathering and structural instability, should be resolved by setting up a humidity reduction facility. The contamination of lichens and bryophyte around the pagoda and on the surface is serious. Thus biochemical treatments should be given too in order to prevent further biological damages and remove the vegetation growing on the discontinuous planes.

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A Study on Stone Pagodas with Silla Style in the Honam Region of Korea in Goryeo Period (고려시대의 호남지역 신라계 석탑 연구)

  • Tahk, Kyung Baek
    • Korean Journal of Heritage: History & Science
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    • v.49 no.4
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    • pp.4-21
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    • 2016
  • Until now, most studies regarding stone pagodas of the Honam region have been about stone pagodas with Baekje style because it was the territory of Baekje. However, after reviewing the designated cultural properties, I found that among the 94 stone pagodas in the Honam region there are 15 stone pagodas with Baekje style built in the Goryeo Dynasty and 34 stone pagodas with Silla style. So far, most research efforts have been concentrating on stone pagodas with Baekje style. Through a review of stone pagodas with Silla style, I sought to reveal new aspects of the pagodas in the Honam region. After reviewing the placement of pagodas, I found stone pagodas with Silla style were built mostly in South Jeolla Province during the Unified Silla period. However, in the Goryeo Dynasty stone pagodas with Silla style were erected throughout the Honam region. This shows enhanced Buddhist control over the Honam region than in the previous period. It can be verified especially in Gimje, Jeongeup, Sunchang, Damyang, Yeongam, and Gangjin, where stone pagodas with Baekje style and stone pagodas with Silla style coexist. The types of stone pagodas with Silla style in the Honam region can be divided into two. There are 21 pagodas with two-story foundation, and 12 with single foundation. They seem to have inherited characteristics of the two-story foundation of Silla pagodas. Two pagodas with single foundation were made of a single rock or natural rock for lower foundation. Regarding the body of the pagoda, there are 21 three-story pagodas and 12 five-story pagodas. 25 pagodas have first floors made of a single rock. These are likely to be in the tradition of Silla pagodas. However, the lower part of the roof stones vary as there are three, four, or five-tiered ones. Overall, 12 out of 16 pagodas with middle column in foundation, and 15 out of 21 three-story pagodas are located in South Jeolla Province. This proves that stone pagodas in the South Jeolla Province well maintained the tradition of Silla and became popular.

A Study on the Modern Adaptation of Traditional Thatched Roof House -Special Reference to Interior Elements of Restaurants and Cafes- (전통 초가의 현대적 적용 사례에 관한 연구 -식음료 판매 공간의 실내구성요소를 중심으로-)

  • 오혜경
    • Journal of the Korean Home Economics Association
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    • v.38 no.11
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    • pp.137-149
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    • 2000
  • The Purpose of this study was to investigate actual condition about the modem adaptation of interior elements(floor, wall, ceiling, door & window) in traditional thatched roof house. The examined objects were interior space of 36 restaurants and cafes in Seoul and Kyung-Ki Do area. 1. Floor: Jang-pan was mostly alternated with linoleum which huts Jang-pan pattem. Wumul-maru was adapted from the original and Jang-maru was alternated with wood or linolium which has western state Jang-maru pattern. Mud was adapted from the original or alternated with slate stone or rough finish cement. 2. Wall: Rice proper was alternated with rice paper book witch has chinese character, paper for parcels or modem wall paper. Plaster-white paint or white handy coat. Mud-mud color paint or bamboo stick witch located in the mud wall orginal. Log-half cut log. Wooden board-without cross bar or irregular form. 3. Ceiling: Yondung-Chongang was mostly adapted from the original and Banja-Chonjang was alternated with rice paper book which has Chinese character or modem wall paper. 4. Door and Window: Ttisal-mun and Panjang-mun were adapted from the original. Wan and A’character door and window were simplified character itself.

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The conservation of a gilt-bronze Sarira Reliquary, Treasure No. 955 (보물 제955호 선암사 금동팔각원당형사리탑 보존처리)

  • Go, Hyeong-Sun;Yu, Jae-Eun
    • 보존과학연구
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    • s.24
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    • pp.215-227
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    • 2003
  • The gilt-bronze Sarira Reliquary was discovered when repairing three-stories east stone pagoda (Treasure No. 395) at Seungju-eup in Suncheon city in Jeollanam-do Province in August, 1986. Then it was appointed as Treasure in 1988. The Sarira Reliquary had been held in Seonamsa temple, but deterioration on the surface and corrosion had appeared affecting its surface detail. Consequently, the conservation treatment was carried out from November 2002 to March 2003.The corrosion and dirt on the surface of the Sarira Reliquary were cleaned with ethyl alcohol and Benzotriazole was applied to prevent further corrosion. Finally, NAD-10(Paraloid NAD-10), acrylic resin, was used to consolidate the structure. Moreover, after non-destructive analysis to confirm element of alloy, copper, gold, silver and mercury were discovered and this result tells us that it was plated with gold by amalgam. Fibers at the pedestal were examined under the microscope and identified as silk. The total height of this Sarira Reliquary is 6.0cm, the height of lotus pedestal and the roof is 2.7cm and 1.8cm, respectively. The roof and body are joined together, and the lotus pedestal can be separated, on which the octagonal reliquary is impaled. The pedestal consists of 3layers of petals and the surface is decorated with flower pattern. The reliquary is presumed to be created in the 14th century, and it becomes valuable historical material to reveal the secret of metal work in the late Goryeo Dynasty.

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A Study on the Application of Design in the Facade of the National University - Focused on the k-National University in Deagu - (국립대학교 교사 입면의 디자인 적용현황 연구 - 대구지역의 K대학을 중심으로 -)

  • Seo, Hee-Sook
    • Korean Institute of Interior Design Journal
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    • v.20 no.3
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    • pp.22-32
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    • 2011
  • The purpose of this study is on the application of the facade design of k-national university in deagu. The subjects of the study examined 75 buildings from the 117 university buildings in main campus. The analysis items is analyzed by several elements; flat and sloping roof, main entrance, design principle, style of architecture, finishing materials, and characteristics of design surveyed by analysis items. The results are as follows: In the 1950s, 2 subjects have shown conflicting characteristics except brick finishing materials. In he 1960s, flat make up 75% of a whole, centrality in main entrances occur, but have an asymmetrical, during this period vertical motif have been underlined by repetition of column, stone has application to main adminstration building. The buildings in the 1970s were so characteristics of modern architecture by painting and flat except main entrance at the center of facade. In the 1980s, position of main entrance have a corner of a wall, finishing materials of a wall were beginning to use stone, glass and metal. The buildings in the 1990s and 2000s are looking a three-dimensional composition by rhythm of superimposition and segmentation and all finishing materials of analysis items are in use.

Analysis of the Organic Acid Contaminants on the surface of TEN-STORIED STONE PAGODA ON THE SITE OF WON-GAKSA (원각사지 십층석탑 오염물의 유기산 분석)

  • Lee, Kyu-Shik;Han, Sung-Hee
    • 보존과학연구
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    • s.16
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    • pp.112-122
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    • 1995
  • TEN-STORIED STONE PAGODA ON THE SITE OFWON-GAKSA(Temple) which is one of three marble pagodas in South Korea, were dated from the thirteenth year of the reign of King Sejo(1467). On the roof and surface of each the stories, there were large amount of the contaminants such as pigeon′s excretions, dust and environmental elements for a long time. The pH of contaminants is not acid, but is 7.2, neutral. To find the species of organic acidscontained in the contaminants and the degree of damaging for a marble pagoda, we analyzed the contaminants using GC-MSD method by the following procedures. Organic acids were extracted by saponifying whole contaminants. After Saponification, the organic acids were mathylated to increase their volatility upon subsequent GC-MSD analysis. The mathyl esters of the organic acids are extracted from the acidified aqueous solution. And the organic extracts were washed with adilute base solution. The washed extract were analyzed by GC(Hewlett Packard 5890)with a nonpolar capillary column(Crosslinked 5% Ph Me Silicone, $50×0.2㎜×0.33\mum$film thickness, USA) and Mass Spectrometric Detector(Hewlett Packard 5970B).As the result, it was found that 12 organic acids were the main compound in pagoda′contaminants, and the amount of organic acid were negligible.

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