FULL-SCALE MODEL TEST ON PILE FOUNDATION EARTHQUAKE-RESISTANCE REINFORCEMENT METHOD USING GROUND SOLIDIFICATION BODY
In the past large earthquakes, many pile foundations were suffered from destructed damage due to strong vibration and ground liquefaction. The necessity of earthquake resistant reinforcement to pile foundations has risen. However, applications of existing earthquake resistant reinforcement methods to pile foundations are limited because of various unfavorable construction conditions. The authors proposed a new method for the earthquake resistant reinforcement for pile foundations based on ground solidification techniques which is applicable to both new and existing pile foundations. The proposal method aims to increase the stiffness of the pile foundation by the effect of a two layered larmen structure by the reinforcement body made in the ground around piles, and was confirmed by model shaking table tests under 1g gravitational field and numerical simulation analyses. This paper will show a full-scale model test of the proposed method that was conducted to examine the construction performance and the quality of reinforcement body in the pile foundation. The full-scale test includes horizontal load tests, vibration tests, and excavation of the reinforcement body for observation. Based on the test results, applicability of the proposed reinforcement method for a real pile foundation was confirmed.
Pile Foundation Earthquake Resistance Reinforcement Ground Solidification Lateral Loading Test Vibration Test
Y.ADACHI K.URANO T.TAKENOSHITA N.TANZAWA M.KAWAMURA
Hazama Corporation, Karima 515-1,Tsukuba,Ibaraki,305-0082,Japan Toko Corporation, Shiba 2-14-5, Minatoku, Tokyo, 104 - 0004,Japan Aoyama Kiko Corporation,Kameido 1-38-4, Kotoku,Tokyo, 136-0071,Japan Dept.of Architecture and Civil Eng., Toyohashi University of Technology, Tenpakucyo Hibarigaoka 1-1,
国际会议
第三届中日岩土工程研讨会(Proceedings of the 3rd Sino-Japan Geotechnical Symposium)
重庆
英文
59-67
2007-11-05（万方平台首次上网日期，不代表论文的发表时间）