Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for eliminating seismic liquefaction of saturated sand
The invention provides a method for eliminating seismic liquefaction of saturated sand, which comprises the following steps: S1, construction preparation: leveling and cleaning a construction site; s2, pile position lofting is carried out, and hole positions are arranged through paying off; s3, vibrating, soil-squeezing and hole-forming are conducted, and under the vibration effect of a vibroflot, the pile pipe is sunk to the specified design depth; s4, vibration is stopped, the vibroflot is lifted, and gravels are injected into the pile pipe through the feeding opening; s5, the broken stones are repeatedly vibrated and injected in a segmented mode, and the pipe is pulled out till the whole pipe is pulled out; and S6, the pile pipe is lifted to be higher than the ground, vibration is stopped, and orifice feeding is conducted till the designed elevation is achieved. The saturated sand soil layer is compacted by adopting the well casing vibro-replacement gravel piles to form the composite foundation, so that seismic liquefaction is eliminated.
本发明提供一种消除饱和砂土地震液化的方法，包括如下步骤：S1、施工准备，对施工场地进行平整、清理；S2、桩位放样，通过放线布设孔位；S3、振动挤土成孔，在振冲器的振动作用下，把桩管沉至规定的设计深度；S4、停止振动，提起振冲器，将碎石由加料口注入桩管内；S5、分段重复振捣注入碎石并拔管，直至全管拔出；S6、提升桩管高于地面，停止振动进行孔口投料直至设计标高。本发明通过采用井管振冲碎石桩挤密饱和砂土层，形成复合地基，从而消除地震液化。
Method for eliminating seismic liquefaction of saturated sand
The invention provides a method for eliminating seismic liquefaction of saturated sand, which comprises the following steps: S1, construction preparation: leveling and cleaning a construction site; s2, pile position lofting is carried out, and hole positions are arranged through paying off; s3, vibrating, soil-squeezing and hole-forming are conducted, and under the vibration effect of a vibroflot, the pile pipe is sunk to the specified design depth; s4, vibration is stopped, the vibroflot is lifted, and gravels are injected into the pile pipe through the feeding opening; s5, the broken stones are repeatedly vibrated and injected in a segmented mode, and the pipe is pulled out till the whole pipe is pulled out; and S6, the pile pipe is lifted to be higher than the ground, vibration is stopped, and orifice feeding is conducted till the designed elevation is achieved. The saturated sand soil layer is compacted by adopting the well casing vibro-replacement gravel piles to form the composite foundation, so that seismic liquefaction is eliminated.
本发明提供一种消除饱和砂土地震液化的方法，包括如下步骤：S1、施工准备，对施工场地进行平整、清理；S2、桩位放样，通过放线布设孔位；S3、振动挤土成孔，在振冲器的振动作用下，把桩管沉至规定的设计深度；S4、停止振动，提起振冲器，将碎石由加料口注入桩管内；S5、分段重复振捣注入碎石并拔管，直至全管拔出；S6、提升桩管高于地面，停止振动进行孔口投料直至设计标高。本发明通过采用井管振冲碎石桩挤密饱和砂土层，形成复合地基，从而消除地震液化。
Method for eliminating seismic liquefaction of saturated sand
一种消除饱和砂土地震液化的方法
ZHAO XIAODONG (Autor:in) / HE QIANG (Autor:in) / LIU JIANXUN (Autor:in) / WU BENJIAN (Autor:in) / SUN SAIHUI (Autor:in) / LI PEIYAO (Autor:in) / WANG JIALE (Autor:in) / LI JIA (Autor:in) / LI CHAO (Autor:in) / JIANG FENGQING (Autor:in)
22.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Liquefaction Resistance of Saturated Sand
| Springer Verlag | 2022
CONSTRUCTION METHOD AND CONSTRUCTION SYSTEM FOR ELIMINATING SAND LIQUEFACTION
| Europäisches Patentamt | 2023
Seismic liquefaction analysis of saturated sand soil based on Finn constitutive model
| British Library Online Contents | 2010
Assessment of liquefaction of soils in saturated sand dams under seismic loads
| Online Contents | 1984
Assessment of liquefaction of soils in saturated sand dams under seismic loads
| Springer Verlag | 1984