نتایج جستجو برای: excavations method
تعداد نتایج: 1632359 فیلتر نتایج به سال:
T he excavations directed by Professor Dart at the Makapansgat Limeworks, and conducted mainly by myself at the site since 1960, were concerned during the 19631965 field seasons with an examination of the surface soil overlying the consolidated pink breccias, and of the contents of the abundant solution cavities which penetrate the underlying breccia mass to depths of up to 15
Modern humans overlapped in time and space with other hominins, such as Neanderthals and Denisovans, and limited amounts of hybridization occurred. Here, we review recent work that has identified archaic hominin sequence that survives in modern human genomes and what these genomic excavations reveal about human evolutionary history.
When a tunnel passes through weak soil with different conditions, or there is a thin layer of soil on top of the tunnel, the mass of soil or rock must be stabilized. In addition, an excavation method must be chosen and applied in order to control the amount of subsidence and convergence which are among the most significant factors in excavation a tunnel especially in urban area, since the soil ...
Cross walls have been used as alternative auxiliary measures to protect buildings in some areas of Asia. Realizing the inadequacy classical Winkler foundation predict deflection diaphragm wall with cross wall, a modified finite element method (MEFB) was formulated this paper. Then, MEFB verified through two excavation cases and applied new well-documented history. Results showed that by propose...
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