Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method
The invention discloses a water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method. The water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method comprises the steps that (1) the embedding depth of a steel casing is determined according to the thickness of a sand gravel soil layer and the height of a water head; (2) the steel casing is embedded, backfilling and tamping are conducted according to the designed elevation of a backfilling layer; (3) grouting pipes are driven into the periphery of the steel casing, and grouting is conducted according to pressure to form a grouting body surrounding the steel casing; and (4) after the grouting body reaches the consolidation strength, drilling operation is conducted through a drilling machine. According to the water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method, the water-rich sand gravel soil layer around the steel casing is grouted, so that the impermeability and the strength of the soil layer are improved, and the problems that a pile foundation at the bottom of the steel casing is prone to hole collapse, water emerges from the outer wall of the steel casing, and the steel casing shifts and inclines in water-rich sand gravel soil layer pile foundation construction are solved; operation can be continuously and effectively conducted during water-rich sand gravel soil layer pile foundation drilling, the construction efficiency is improved, potential safety hazards caused by hole collapse and water emitting are avoided, and the safety risk is reduced.
本发明公开了一种富水砂砾石土层桩基护筒注浆加固施工方法，包括①根据砂砾石土层厚度、水头高度确定钢护筒埋设深度②埋设钢护筒，并按照回填层设计标高进行回填、夯实③在钢护筒周围打入注浆管，并按压力进行注浆，形成环绕钢护筒的注浆体④待注浆体达到固结强度以后，利用钻机进行钻孔作业。本发明通过对钢护筒周围富水砂砾石土层进行注浆的方式，增加了该土层的防渗性和强度，解决了富水砂砾石土层桩基施工中钢护筒底桩基易塌孔、钢护筒外壁冒水以及钢护筒移位、倾斜等情况的发生，使得富水砂砾石土层桩基钻孔时能连续、有效地进行作业，提高了施工效率，避免了因塌孔、冒水造成的安全隐患，降低了安全风险。
Water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method
The invention discloses a water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method. The water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method comprises the steps that (1) the embedding depth of a steel casing is determined according to the thickness of a sand gravel soil layer and the height of a water head; (2) the steel casing is embedded, backfilling and tamping are conducted according to the designed elevation of a backfilling layer; (3) grouting pipes are driven into the periphery of the steel casing, and grouting is conducted according to pressure to form a grouting body surrounding the steel casing; and (4) after the grouting body reaches the consolidation strength, drilling operation is conducted through a drilling machine. According to the water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method, the water-rich sand gravel soil layer around the steel casing is grouted, so that the impermeability and the strength of the soil layer are improved, and the problems that a pile foundation at the bottom of the steel casing is prone to hole collapse, water emerges from the outer wall of the steel casing, and the steel casing shifts and inclines in water-rich sand gravel soil layer pile foundation construction are solved; operation can be continuously and effectively conducted during water-rich sand gravel soil layer pile foundation drilling, the construction efficiency is improved, potential safety hazards caused by hole collapse and water emitting are avoided, and the safety risk is reduced.
本发明公开了一种富水砂砾石土层桩基护筒注浆加固施工方法，包括①根据砂砾石土层厚度、水头高度确定钢护筒埋设深度②埋设钢护筒，并按照回填层设计标高进行回填、夯实③在钢护筒周围打入注浆管，并按压力进行注浆，形成环绕钢护筒的注浆体④待注浆体达到固结强度以后，利用钻机进行钻孔作业。本发明通过对钢护筒周围富水砂砾石土层进行注浆的方式，增加了该土层的防渗性和强度，解决了富水砂砾石土层桩基施工中钢护筒底桩基易塌孔、钢护筒外壁冒水以及钢护筒移位、倾斜等情况的发生，使得富水砂砾石土层桩基钻孔时能连续、有效地进行作业，提高了施工效率，避免了因塌孔、冒水造成的安全隐患，降低了安全风险。
Water-rich sand gravel soil layer pile foundation pile casing grouting reinforcement construction method
富水砂砾石土层桩基护筒注浆加固施工方法
JIE ZHIGANG (Autor:in) / ZHAO HAO (Autor:in) / BAI HONGZHOU (Autor:in) / BAO JIANWEN (Autor:in) / LI SHIMAO (Autor:in) / LIU JIANWEN (Autor:in) / XU XUSHENG (Autor:in) / ZHANG YUANSONG (Autor:in) / DUAN ERQIANG (Autor:in) / ZHANG WEIPENG (Autor:in)
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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