Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reducing soil squeezing effect of pile group
The invention relates to the technical field of pipe pile construction methods, in particular to a construction method for reducing the soil squeezing effect of a pile group. The construction method for reducing the soil squeezing effect of the pile group comprises the following steps of S1, measuring the positions of an isolation ditch and a steel sheet pile between a pile group construction area and an external building area; S2, driving the steel sheet pile into the ground; S3, digging the isolation ditch; S4, drilling a plurality of stress release holes at the bottom of the isolation ditch, and immersing a vibration isolation assembly in each stress release hole; and S5, carrying out construction on the pile group construction area. According to the construction method for reducing the soil squeezing effect of the pile group, vibration wave transmission and surface upheaval caused by static pressure pile sinking of a pipe pile are effectively weakened through the isolation ditch; the stress release holes are matched with the vibration isolation assembly to isolate surrounding soft soil vibration and thixotropy caused by pipe pile sinking, horizontal and vertical displacement of soft soil is reduced, and excess pore water pressure generated in the soft soil is discharged; the steel sheet pile can block residual vibration of the stress release holes and refract and return vibration waves, so that sensitive buildings are protected.
本发明涉及管桩施工方法技术领域，尤其涉及一种消减群桩挤土效应的施工方法，包括如下步骤：步骤1、在群桩施工区域与外部建筑物区域之间测定隔离沟和钢板桩的位置；步骤2、将钢板桩打设在地面中；步骤3、开挖隔离沟；步骤4、在隔离沟的底部钻设多个应力释放孔，并向每个应力释放孔中沉放隔振组件；步骤5、对群桩施工区域进行施工。本发明通过隔离沟有效减弱管桩静压沉桩引发的振动波传递和地表隆起；通过应力释放孔与隔振组件相配合隔断管桩沉桩引发的周边软土振动和触变，减少软土水平和竖向位移，并将软土中产生的超孔隙水压力排出；且钢板桩能够对应力释放孔剩余的振动进行阻断及振动波的折射返回，保护敏感性建筑物体。
Construction method for reducing soil squeezing effect of pile group
The invention relates to the technical field of pipe pile construction methods, in particular to a construction method for reducing the soil squeezing effect of a pile group. The construction method for reducing the soil squeezing effect of the pile group comprises the following steps of S1, measuring the positions of an isolation ditch and a steel sheet pile between a pile group construction area and an external building area; S2, driving the steel sheet pile into the ground; S3, digging the isolation ditch; S4, drilling a plurality of stress release holes at the bottom of the isolation ditch, and immersing a vibration isolation assembly in each stress release hole; and S5, carrying out construction on the pile group construction area. According to the construction method for reducing the soil squeezing effect of the pile group, vibration wave transmission and surface upheaval caused by static pressure pile sinking of a pipe pile are effectively weakened through the isolation ditch; the stress release holes are matched with the vibration isolation assembly to isolate surrounding soft soil vibration and thixotropy caused by pipe pile sinking, horizontal and vertical displacement of soft soil is reduced, and excess pore water pressure generated in the soft soil is discharged; the steel sheet pile can block residual vibration of the stress release holes and refract and return vibration waves, so that sensitive buildings are protected.
本发明涉及管桩施工方法技术领域，尤其涉及一种消减群桩挤土效应的施工方法，包括如下步骤：步骤1、在群桩施工区域与外部建筑物区域之间测定隔离沟和钢板桩的位置；步骤2、将钢板桩打设在地面中；步骤3、开挖隔离沟；步骤4、在隔离沟的底部钻设多个应力释放孔，并向每个应力释放孔中沉放隔振组件；步骤5、对群桩施工区域进行施工。本发明通过隔离沟有效减弱管桩静压沉桩引发的振动波传递和地表隆起；通过应力释放孔与隔振组件相配合隔断管桩沉桩引发的周边软土振动和触变，减少软土水平和竖向位移，并将软土中产生的超孔隙水压力排出；且钢板桩能够对应力释放孔剩余的振动进行阻断及振动波的折射返回，保护敏感性建筑物体。
Construction method for reducing soil squeezing effect of pile group
一种消减群桩挤土效应的施工方法
MA BINGBING (Autor:in) / WANG XIAOMING (Autor:in) / MA ZHUYIN (Autor:in) / XIE QING (Autor:in) / SUN YI (Autor:in) / TANG JIAHAO (Autor:in) / QU JIEHUI (Autor:in)
13.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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