본 연구에서는 대곡댐의 계측자료에 의한CFRD의 축조에 따른 거동분석을 통하여 댐체가 받는 하중의 변화에 따른 침하 변형 거동을 분석하였으며, 외국의 CFRD 계측 결과와 비교 분석하였다. 대곡댐의 깊이에 따른 침하량 분석 결과, 전체적인 거동양상이 일반적인 CFRD 거동과 잘 일치하는 것으로 평가되었다. 또한, 38개 CFRD의 계측자료 분석 결과 변형계수, 간극비, 형상계수 등은 댐체의 침하 거동을 예측하는데 중요한 인자임을 확인하였으며 최대 층별 침하량이 작을수록 간극비는 낮게 나타났다. 최대 층별 침하량과 댐 높이의 관계에서 0.001에서 0.01사이에 상관계수를 갖는 댐이 26개로서, 일반적인 CFRD는 대략적으로 평균하였을 경우 최대 층별 침하량과 댐 높이는 0.005의 상관계수를 갖는 것으로 나타났다. 간극비가 낮은 경우 변형계수가 높았으며 형상계수는 4 이하로 나타났고 간극비가 높은 경우 상대침하율이 상대적으로 컸으며 형상계수도 4 이상으로 나타났다.
본 연구에서는 대곡댐의 계측자료에 의한CFRD의 축조에 따른 거동분석을 통하여 댐체가 받는 하중의 변화에 따른 침하 변형 거동을 분석하였으며, 외국의 CFRD 계측 결과와 비교 분석하였다. 대곡댐의 깊이에 따른 침하량 분석 결과, 전체적인 거동양상이 일반적인 CFRD 거동과 잘 일치하는 것으로 평가되었다. 또한, 38개 CFRD의 계측자료 분석 결과 변형계수, 간극비, 형상계수 등은 댐체의 침하 거동을 예측하는데 중요한 인자임을 확인하였으며 최대 층별 침하량이 작을수록 간극비는 낮게 나타났다. 최대 층별 침하량과 댐 높이의 관계에서 0.001에서 0.01사이에 상관계수를 갖는 댐이 26개로서, 일반적인 CFRD는 대략적으로 평균하였을 경우 최대 층별 침하량과 댐 높이는 0.005의 상관계수를 갖는 것으로 나타났다. 간극비가 낮은 경우 변형계수가 높았으며 형상계수는 4 이하로 나타났고 간극비가 높은 경우 상대침하율이 상대적으로 컸으며 형상계수도 4 이상으로 나타났다.
In this study, the deformation behavior of Daegok dam during the construction was analyzed based on the measurement data and a comparative analysis with foreign CFRD measurements was performed. From measuring settlements of Daegok dam with depth, overall behavior was evaluated to be consistent with ...
In this study, the deformation behavior of Daegok dam during the construction was analyzed based on the measurement data and a comparative analysis with foreign CFRD measurements was performed. From measuring settlements of Daegok dam with depth, overall behavior was evaluated to be consistent with measured data of other CFRD dams. In addition, construction modulus, void ratio and shape factor were also evaluated to be major factors in predicting the settlement behavior during construction of CFRD-typed dam from measured data of 38 CFRD-typed dams, and the maximum internal settlement is proportional to the void ratio. From the relationship between the maximum internal settlement and the height of a dam, 26 dams were assessed to have its relative modulus ranging between 0.001 and 0.01. In case of general CFRD, the average modulus of maximum internal settlement to the height of a dam is estimated to be 0.005. In case of a low void ratio, the construction modulus was high with its shape factor below 4. On the other hand, in case of a high void ratio, the relative settlement rate was high with its shape factor more than 4.
In this study, the deformation behavior of Daegok dam during the construction was analyzed based on the measurement data and a comparative analysis with foreign CFRD measurements was performed. From measuring settlements of Daegok dam with depth, overall behavior was evaluated to be consistent with measured data of other CFRD dams. In addition, construction modulus, void ratio and shape factor were also evaluated to be major factors in predicting the settlement behavior during construction of CFRD-typed dam from measured data of 38 CFRD-typed dams, and the maximum internal settlement is proportional to the void ratio. From the relationship between the maximum internal settlement and the height of a dam, 26 dams were assessed to have its relative modulus ranging between 0.001 and 0.01. In case of general CFRD, the average modulus of maximum internal settlement to the height of a dam is estimated to be 0.005. In case of a low void ratio, the construction modulus was high with its shape factor below 4. On the other hand, in case of a high void ratio, the relative settlement rate was high with its shape factor more than 4.
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제안 방법
was analyzed based on the data. Also, various problems that may occur during inpounding were examined and a cone)arison analysis with foreign CFRD measurement data (height, shape factor, void ratio, settlement, settlement rate, and deformation modulus) was performed to provide a basic information that will be needed for domestic CFRD design, construction, and long-term maintenance.
In this research, the measurement data of Daegok dam during its construction were collected and the defonnation behavior was analyzed based on the data. Also, various problems that may occur during inpounding were examined and a cone)arison analysis with foreign CFRD measurement data (height, shape factor, void ratio, settlement, settlement rate, and deformation modulus) was performed to provide a basic information that will be needed for domestic CFRD design, construction, and long-term maintenance.
Pinto and Marques (1998) suggested calculating the void ratio of a body in order to measure its degree of compaction. In this study, it was examined that the deformation rate can be predicted with the void ratio by comparing the relationship between the void ratio and a construction modulus. As can be seen in Fig.
In this study, the deformation behavior of Daegok dam during the construction was analyzed based on the measurement data and a comparative analysis with foreign CFRD measurements was performed. Followings are the main conclusions drawn from this study.
성능/효과
0 m). In conclusion, this part of the dam structure is expected to have a greater displacement than other parts. A continuous observation is required.
후속연구
This was not observed in the traditional dams. Even though it is thought that it happened because the inclinometer was installed not to the center but slightly to the downstream, and further observations are needed in the future.
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