| 摘要 |
PURPOSE: A basement bottom drainage method is provided to reduce construction expenses by decreasing the quantity of concrete and gravel and to improve drainage efficiency by draining underground water directly by uplift pressure. CONSTITUTION: A basement bottom drainage method comprises a drainage channel(50) draining underground water occurring from a concrete bottom(14) by high uplift pressure by the differential head of a basement(10) to a collecting well(24), wherein the drainage channel(50) comprises many vertical parts(50a) formed vertically into the concrete bottom(14), and horizontal parts(50b) formed horizontally to connect with the collecting well(24) by connecting many vertical parts(50a) in a passage and lays in the thickness of the concrete bottom(14) by preventing a crack and a water leakage of the concrete bottom(14).
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