A complete case of a deep excavation was explored. According to the practical working conditions, a 3D non-linear finite element procedure is used to simulate a deep excavation supported by the composite soil nailed w...A complete case of a deep excavation was explored. According to the practical working conditions, a 3D non-linear finite element procedure is used to simulate a deep excavation supported by the composite soil nailed wall with bored piles in soft soil. The modified cam clay model is employed as the constitutive relationship of the soil in the numerical simulation. Results from the numerical analysis are fitted well with the field data, which indicate that the research approach used is reliable. Based on the field data and numerical results of the deep excavation supported by four different patterns of the composite soil nailed wall, the significant corner effect is founded in the 3D deep excavation. If bored piles or soil anchors are considered in the composite soil nailed wall, they are beneficial to decreasing deformations and internal forces of bored piles, cement mixing piles, soil anchors, soil nailings and soil around the deep excavation. Besides, the effects due to bored piles are more significant than those deduced from soil anchors. All mentioned above prove that the composite soil nailed wall with bored piles is feasible in the deep excavation.展开更多
The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, ...The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, order, and clarity work to achieve a coherent picture space uniting, through the agency of the frame and the space represented with the space occupied by the beholder. The resistance on ＂frame despotism＂ and ＂dismemberment＂ of picture by avant-garde artist exposes the illusory reality created by perspective and verisimilitude, which deconstructs the false aesthetic relationship of frame and picture. Analysis on frame by modernist art builds its art value展开更多
基金Foundation item： Project（2009-K3-2） supported by the Ministry of Housing and Urban-Rural Development of China
文摘A complete case of a deep excavation was explored. According to the practical working conditions, a 3D non-linear finite element procedure is used to simulate a deep excavation supported by the composite soil nailed wall with bored piles in soft soil. The modified cam clay model is employed as the constitutive relationship of the soil in the numerical simulation. Results from the numerical analysis are fitted well with the field data, which indicate that the research approach used is reliable. Based on the field data and numerical results of the deep excavation supported by four different patterns of the composite soil nailed wall, the significant corner effect is founded in the 3D deep excavation. If bored piles or soil anchors are considered in the composite soil nailed wall, they are beneficial to decreasing deformations and internal forces of bored piles, cement mixing piles, soil anchors, soil nailings and soil around the deep excavation. Besides, the effects due to bored piles are more significant than those deduced from soil anchors. All mentioned above prove that the composite soil nailed wall with bored piles is feasible in the deep excavation.
文摘The frame should not only be regarded as an external physical framework of artworks, but also the boundary mark of identifying the art and reality. Within classical space contained by the frame, the values of reason, order, and clarity work to achieve a coherent picture space uniting, through the agency of the frame and the space represented with the space occupied by the beholder. The resistance on ＂frame despotism＂ and ＂dismemberment＂ of picture by avant-garde artist exposes the illusory reality created by perspective and verisimilitude, which deconstructs the false aesthetic relationship of frame and picture. Analysis on frame by modernist art builds its art value
