Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To modify soil while reducing labor and cost without discharging inside liquid of an undersoil structure.SOLUTION: A first filling material 41 is filled into the inside of a first casing 32 of which the lower end 33 reaches an upper surface 14 of a pile cap 12 in a first boring step and a first filling step with respect to an existing underground structure 10 which has the pile cap 12 and a bottom slab 13 and includes liquid 11 present the inside 18 thereof. A second filling material 42 is filled into the inside of a second casing 52 of which the lower end 53 reaches an upper surface 16 of the bottom slab 13 while penetrating through the first filling material 41 and the liquid 11 in a second boring step and a second filling step. A modification material 71 is injected into the soil 1 from a third boring part 61 reaching the soil 1 while penetrating through the second filling material 42 and the bottom slab 13 in a third boring step and an injection step. Thus, the soil 1 can be modified while reducing labor and cost without discharging the liquid of the inside 18 of an underground structure 10. The first casing 32 and the like are removed in a removal step, so that the underground structure 10 can be used similarly as usual.SELECTED DRAWING: Figure 12
【課題】地中構造物の内部の液体を排出せずに労力及び費用を低減しつつ地盤を改質する。【解決手段】内部１８に液体１１が存在し、頂版１２と底版１３とを有する既設の地中構造物１０に対し、第１削孔工程及び第１充填工程で、下端３３が頂版１２の上面１４に到る第１ケーシング３２の内部に第１充填材４１が充填される。第２削孔工程及び第２充填工程で、第１充填材４１及び液体１１を貫通しつつ下端５３が底版１３の上面１６に到る第２ケーシング５２の内部に第２充填材４２が充填される。第３削孔工程及び注入工程では、第２充填材４２及び底版１３を貫通しつつ地盤１に到る第３削孔部６１から地盤１に改質材７１が注入される。よって、地中構造物１０の内部１８の液体を排出せずに、労力及び費用を低減しつつ地盤１を改質することができる。また、撤去工程により、第１ケーシング３２等の撤去が行われるため、地中構造物１０を従前と同様に使用できる。【選択図】図１２
PROBLEM TO BE SOLVED: To modify soil while reducing labor and cost without discharging inside liquid of an undersoil structure.SOLUTION: A first filling material 41 is filled into the inside of a first casing 32 of which the lower end 33 reaches an upper surface 14 of a pile cap 12 in a first boring step and a first filling step with respect to an existing underground structure 10 which has the pile cap 12 and a bottom slab 13 and includes liquid 11 present the inside 18 thereof. A second filling material 42 is filled into the inside of a second casing 52 of which the lower end 53 reaches an upper surface 16 of the bottom slab 13 while penetrating through the first filling material 41 and the liquid 11 in a second boring step and a second filling step. A modification material 71 is injected into the soil 1 from a third boring part 61 reaching the soil 1 while penetrating through the second filling material 42 and the bottom slab 13 in a third boring step and an injection step. Thus, the soil 1 can be modified while reducing labor and cost without discharging the liquid of the inside 18 of an underground structure 10. The first casing 32 and the like are removed in a removal step, so that the underground structure 10 can be used similarly as usual.SELECTED DRAWING: Figure 12
【課題】地中構造物の内部の液体を排出せずに労力及び費用を低減しつつ地盤を改質する。【解決手段】内部１８に液体１１が存在し、頂版１２と底版１３とを有する既設の地中構造物１０に対し、第１削孔工程及び第１充填工程で、下端３３が頂版１２の上面１４に到る第１ケーシング３２の内部に第１充填材４１が充填される。第２削孔工程及び第２充填工程で、第１充填材４１及び液体１１を貫通しつつ下端５３が底版１３の上面１６に到る第２ケーシング５２の内部に第２充填材４２が充填される。第３削孔工程及び注入工程では、第２充填材４２及び底版１３を貫通しつつ地盤１に到る第３削孔部６１から地盤１に改質材７１が注入される。よって、地中構造物１０の内部１８の液体を排出せずに、労力及び費用を低減しつつ地盤１を改質することができる。また、撤去工程により、第１ケーシング３２等の撤去が行われるため、地中構造物１０を従前と同様に使用できる。【選択図】図１２
SOIL MODIFICATION METHOD
地盤改質方法
YASUNAGA MASAMICHI (Autor:in)
08.03.2018
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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