A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIQUEFACTION COUNTERMEASURE METHOD
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure method that is not affected by whether a liquefaction countermeasure has been provided or by any change outside of a site, does not adversely affect an existing structure outside of the site, and offers high economic efficiency.SOLUTION: A first wall-like body W1 that does not reach a non-liquefaction layer G2 is constructed on an outer peripheral part of a spread foundation 1 supporting a building 2, and a liquefaction countermeasure is provided inside an area surrounded by the first wall-like body W1 using a floating grid-form improvement body 3, etc. Furthermore, a second wall-like body W2 that reaches the non-liquefaction layer G2 is constructed outside of the first wall-like body W1, thereby shutting off an influence from liquefaction of a ground inside and outside. An effect of the liquefaction countermeasure for the ground inside the area surrounded by the first wall-like body W1 may be demonstrated fully without being affected by a change in a ground outside of the second wall-like body W2, regardless of whether the ground outside of the second wall-like body W2 is inside or outside of a site.SELECTED DRAWING: Figure 1
【課題】敷地外の液状化対策の有無あるいは変動に影響されず、また敷地外の既存構造物に対し、悪影響を与えることがなく、かつ経済性にも優れた液状化対策工法を提供する。【解決手段】建物２を支持する直接基礎１の外周部に非液状化層Ｇ２に達しない第１壁状体Ｗ１を構築し、第１壁状体Ｗ１によって囲まれる内側に浮き型格子状改良体３などによる液状化対策を施し、さらに第１壁状体Ｗ１の外側に非液状化層Ｇ２に達する第２壁状体Ｗ２を構築し、内外の地盤の液状化の影響を遮断する。第２壁状体Ｗ２の外側が敷地内であるか敷地外であるかに関わらず、第２壁状体Ｗ２の外側の地盤の変状に影響を受けることなく、第１壁状体Ｗ１によって囲まれる内側の地盤の液状化対策の効果を十分に発揮させることができる。【選択図】図１
LIQUEFACTION COUNTERMEASURE METHOD
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure method that is not affected by whether a liquefaction countermeasure has been provided or by any change outside of a site, does not adversely affect an existing structure outside of the site, and offers high economic efficiency.SOLUTION: A first wall-like body W1 that does not reach a non-liquefaction layer G2 is constructed on an outer peripheral part of a spread foundation 1 supporting a building 2, and a liquefaction countermeasure is provided inside an area surrounded by the first wall-like body W1 using a floating grid-form improvement body 3, etc. Furthermore, a second wall-like body W2 that reaches the non-liquefaction layer G2 is constructed outside of the first wall-like body W1, thereby shutting off an influence from liquefaction of a ground inside and outside. An effect of the liquefaction countermeasure for the ground inside the area surrounded by the first wall-like body W1 may be demonstrated fully without being affected by a change in a ground outside of the second wall-like body W2, regardless of whether the ground outside of the second wall-like body W2 is inside or outside of a site.SELECTED DRAWING: Figure 1
【課題】敷地外の液状化対策の有無あるいは変動に影響されず、また敷地外の既存構造物に対し、悪影響を与えることがなく、かつ経済性にも優れた液状化対策工法を提供する。【解決手段】建物２を支持する直接基礎１の外周部に非液状化層Ｇ２に達しない第１壁状体Ｗ１を構築し、第１壁状体Ｗ１によって囲まれる内側に浮き型格子状改良体３などによる液状化対策を施し、さらに第１壁状体Ｗ１の外側に非液状化層Ｇ２に達する第２壁状体Ｗ２を構築し、内外の地盤の液状化の影響を遮断する。第２壁状体Ｗ２の外側が敷地内であるか敷地外であるかに関わらず、第２壁状体Ｗ２の外側の地盤の変状に影響を受けることなく、第１壁状体Ｗ１によって囲まれる内側の地盤の液状化対策の効果を十分に発揮させることができる。【選択図】図１
LIQUEFACTION COUNTERMEASURE METHOD
液状化対策工法
SHIMIZU HIROYOSHI (author) / KAMOGAWA NAOMASA (author) / ONUMA MITSURU (author)
2018-01-25
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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