BAMBOO PILE, LIQUEFACTION COUNTERMEASURE FOUNDATION STRUCTURE USING BAMBOO PILE, AND MANUFACTURING METHOD OF BAMBOO PILE

摘要

PROBLEM TO BE SOLVED: To provide a bamboo pile with which a controlling effect against subsidence does not decline even when used over a long period.SOLUTION: A bamboo pile 1 is made by filling resin foam 3 in an inner space S between joints of a bamboo pole 2. Since inner spaces S, S, ... between the joints of the bamboo pole 2 are filled with the resin foam 3, water does not infiltrate into the inner space S even when the bamboo pole 2 cracks, etc., when used as a friction pile. As such, buoyancy obtained by multiplying the specific gravity of water by a volume of water replaced by the bamboo pile 1 does not decline. The self-weight of the bamboo pile 1 remains very light even when filled with the resin foam 3, because the specific gravity of the resin foam 3 is extremely small compared to the specific gravity of water. As such, a significant effect to control subsidence is maintained over a long period. Also, a rise in manufacturing costs may be controlled by using hard or semi-hard urethane foam as the resin foam 3, as the low-priced and easy-to-handle hard or semi-hard urethane foam is filled in the inner space S.SELECTED DRAWING: Figure 1