Experimental study on countermeasure against liquefaction-induced flotation of manhole using recycled materials packed in sandbags  

作　　者：Masaho Yoshida Masaru Tonoo Masakatsu Miyajima Masaru Kitaura 

机构地区：[1]Fukui National College of Technology,Geshi,Sabae,Fukui 916-8507,Japan [2]Kanazawa University,Kakuma-machi,Kanazawa,Ishikawa 920-1192,Japan

出　　处：《Global Geology》2006年第2期150-155,共6页世界地质（英文版）

摘　　要：The 2004 Niigata-ken Chuetsu earthquake in Japan caused serious damage to sewage facilities such as uplift of manholes and settlement of pavement above backfill soil for pipes.This paper deals with shake table tests in a 1 g gravity field on application of recycled materials for ground improvement to mitigation of liquefaction-induced flotation of manhole during earthquakes.The recycled materials used in tests were tire chips made of waste tires and crushed gravels made of waste reinforced concrete,and they were packed in sandbags.From the test results,it was confirmed that the recycled materials packed in sandbags could be treated as one of the countermeasures to restrain the flotation of manholes and settlement of ground surrounded by sandbags.The 2004 Niigata-ken Chuetsu earthquake in Japan caused serious damage to sewage facilities such as uplift of manholes and settlement of pavement above backfill soil for pipes. This paper deals with shake table tests in a 1 g gravity field on application of recycled materials for ground improvement to mitigation of liquefaction-induced flotation of manhole during earthquakes. The recycled materials used in tests were tire chips made of waste tires and crushed gravels made of waste reinforced concrete, and they were packed in sandbags. From the test results, it was confirmed that the recycled materials packed in sandbags could be treated as one of the countermeasures to restrain the flotation of manholes and settlement of ground surrounded by sandbags.

关 键 词：recycled material SANDBAG LIQUEFACTION MANHOLE shake table test 

分 类 号：TU435[建筑科学—岩土工程]