NUMERICAL INVESTIGATION ON THE RESPONSES OF EXISTING SINGLE PILES DUE TO ADJACENT TWIN TUNNELING CONSIDERING THE LAGGING DISTANCE

Numerical investigation on the responses of existing single piles due to adjacent twin tunneling considering the lagging distance

This paper presents an assessment of the influence of the lagging distance between two horizontal tunnel faces of the side-by-side twin tunnels on the responses of the adjacent existing single pile by a series of three-dimensional numerical analyses.Two different relative positions between the pile tip and the tunnel are considered to cover the sho

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On the available energy of an axisymmetric vortex

A theory of available energy for axisymmetric circulations is presented.The theory is a generalization of the classical theory of available potential energy, in that it accounts for both thermal and angular momentum constraints on the circulation.The Manual Breast Pump generalization relies on the Hamiltonian structure of the (conservative) dynamic

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Status of diagnosis and therapy of abdominal aortic aneurysms

Abdominal aortic aneurysms (AAAs) are characterized by localized dilation of the abdominal aorta.They are associated with several serious consequences, including compression of adjacent abdominal organs, pain, treatment-related financial expenditure.The main complication of AAA is aortic rupture, which is responsible for about 200,000 deaths per ye

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Beyond total impervious area: a new lumped descriptor of basin-wide hydrologic connectivity for characterizing urban watersheds

Urbanization impacts on hydrologic response are typically indexed as a function of the fraction of total impervious area (TIA), i.e., the proportion of impervious areas in a basin.This implicitly assumes that changes in flood characteristics are somehow proportional to the extents of land development without considering that such impacts may vary w

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