Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOIL IMPROVEMENT METHOD AND COLUMNAR IMPROVEMENT BODY
To prevent a binding material from flowing out into the soil from a bottom of an excavated hole according to a soil improvement method of forming a core body consisting solely of a binding material within a columnar shape improvement body made of a solidified mixture of an excavated soil and a binding material, and to obtain a stable supporting force by forming the core body into a uniform shape.SOLUTION: The binding material is injected into an excavated hole 40, and after stirring and mixing an excavated soil and the binding material to form an unsolidified mixture 5, the binding material is additionally injected into an axial center part of the excavated hole 40, and an unsolidified core part 6 consisting of only the binding material inside the unsolidified mixture 5 is formed to a columnar shape, and solidified to form a core body 60 consisting only of the binding material inside the cylindrical improvement body made of a solidified mixture 50. Here, a core bottom lid material 3 is disposed at a position that does not reach a bottom of the excavated hole 40 and a binding material for forming the unsolidified core part 6 is injected above the core bottom lid material 3, so that the core body 60 is formed to be spaced apart from the lowest bottom part 41 of the excavated hole 40 in a uniform manner.SELECTED DRAWING: Figure 4
【課題】 掘削土と結合材との固化混合物からなる円柱状改良体の内部に、結合材のみからなる芯体を形成する地盤改良工法において、掘削孔の底部から結合材が土壌中に流出するのを防ぎ、芯体を均整な形状に形成して、安定した支持力を得る。【解決手段】 掘削孔４０内に結合材を注入し、掘削土と結合材とを攪拌混合して未固化の混合物５を生成した後、掘削孔４０の軸心部分に結合材を追加的に注入し、未固化の混合物５の内部に結合材のみからなる未固化の芯部６を柱状に形成して、それらを固化させることにより、固化混合物５０からなる円柱状改良体の内部に結合材のみからなる芯体６０を形成するに際し、掘削孔４０の最底部に届かない位置に芯底蓋材３を配置して、芯底蓋材３よりも上方に未固化の芯部６を形成するための結合材を注入することで、芯体６０を掘削孔４０の最底部４１よりも上方に離隔させて均整に形成する。【選択図】 図４
SOIL IMPROVEMENT METHOD AND COLUMNAR IMPROVEMENT BODY
To prevent a binding material from flowing out into the soil from a bottom of an excavated hole according to a soil improvement method of forming a core body consisting solely of a binding material within a columnar shape improvement body made of a solidified mixture of an excavated soil and a binding material, and to obtain a stable supporting force by forming the core body into a uniform shape.SOLUTION: The binding material is injected into an excavated hole 40, and after stirring and mixing an excavated soil and the binding material to form an unsolidified mixture 5, the binding material is additionally injected into an axial center part of the excavated hole 40, and an unsolidified core part 6 consisting of only the binding material inside the unsolidified mixture 5 is formed to a columnar shape, and solidified to form a core body 60 consisting only of the binding material inside the cylindrical improvement body made of a solidified mixture 50. Here, a core bottom lid material 3 is disposed at a position that does not reach a bottom of the excavated hole 40 and a binding material for forming the unsolidified core part 6 is injected above the core bottom lid material 3, so that the core body 60 is formed to be spaced apart from the lowest bottom part 41 of the excavated hole 40 in a uniform manner.SELECTED DRAWING: Figure 4
【課題】 掘削土と結合材との固化混合物からなる円柱状改良体の内部に、結合材のみからなる芯体を形成する地盤改良工法において、掘削孔の底部から結合材が土壌中に流出するのを防ぎ、芯体を均整な形状に形成して、安定した支持力を得る。【解決手段】 掘削孔４０内に結合材を注入し、掘削土と結合材とを攪拌混合して未固化の混合物５を生成した後、掘削孔４０の軸心部分に結合材を追加的に注入し、未固化の混合物５の内部に結合材のみからなる未固化の芯部６を柱状に形成して、それらを固化させることにより、固化混合物５０からなる円柱状改良体の内部に結合材のみからなる芯体６０を形成するに際し、掘削孔４０の最底部に届かない位置に芯底蓋材３を配置して、芯底蓋材３よりも上方に未固化の芯部６を形成するための結合材を注入することで、芯体６０を掘削孔４０の最底部４１よりも上方に離隔させて均整に形成する。【選択図】 図４
SOIL IMPROVEMENT METHOD AND COLUMNAR IMPROVEMENT BODY
地盤改良工法および円柱状改良体
YAGI MASAO (Autor:in) / MATSUMOTO YASUSHI (Autor:in) / MATSUTANI YUJI (Autor:in) / KATO YUKIMASA (Autor:in) / HATTORI KENJI (Autor:in) / YONEMURA TAKESHI (Autor:in)
07.02.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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