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High-pressure jet grouting pile construction technology
The high-pressure jet grouting pile construction technology comprises the following steps of S1, construction preparation, S2, jet grouting pile construction, S3, primary construction grouting and S4, secondary construction grouting. The step S1 of construction preparation comprises the following steps: S11, geological exploration; s12, a drawing is determined; s13, construction is conducted; the step S2 of jet grouting pile construction comprises the following steps that S21, a center point is determined; s22, designing an elevation; s23, guide hole prefabrication is carried out; s24, prefabricating a rotary spraying pipe; the step S3 of construction grouting comprises the following steps: S31, slurry preparation; s32, rotary jet grouting is carried out; s33, grouting presetting is carried out; s34, removal and prefabrication are carried out; the step S4 of jet grouting pile reinforcement comprises the following steps: S41, reinforcement presetting; s42, an antifriction agent is laid; s43, reinforcement is completed; according to the construction technology, the early strength agent slurry, the first reinforcing liquid and the second reinforcing liquid are mixed, grouting is conducted in a repeated stepping mode through a four-hole method, and during grouting, high-pressure water and compressed air are introduced at the same time, so that cement slurry is prevented from being lost from particle gaps of a particle layer all the time.
本发明公开了一种高压旋喷桩施工工艺，包括以下步骤：S1施工准备、S2旋喷桩施工、S3第一次施工灌浆和S4二次施工灌浆；步骤S1施工准备包括以下步骤：S11：地质勘探；S12：确定图纸；S13：施工进行；步骤S2旋喷桩施工包括以下步骤：S21：确定中心点；S22：设计标高；S23：引孔预制；S24：旋喷管预制；步骤S3施工灌浆包括以下步骤：S31：泥浆制备；S32：旋喷注浆；S33：注浆预设；S34：移除预制；步骤S4旋喷桩加固包括以下步骤：S41：加固预设；S42：铺设减摩剂；S43：加固完成；该施工工艺，通过设置早强剂浆、加固液一和加固液二进行混合，采用四孔法反复步进式进行灌浆，在灌浆时，通过同时通入高压水和压缩空气，避免了水泥浆一直从颗粒层的颗粒缝隙中流失。
High-pressure jet grouting pile construction technology
The high-pressure jet grouting pile construction technology comprises the following steps of S1, construction preparation, S2, jet grouting pile construction, S3, primary construction grouting and S4, secondary construction grouting. The step S1 of construction preparation comprises the following steps: S11, geological exploration; s12, a drawing is determined; s13, construction is conducted; the step S2 of jet grouting pile construction comprises the following steps that S21, a center point is determined; s22, designing an elevation; s23, guide hole prefabrication is carried out; s24, prefabricating a rotary spraying pipe; the step S3 of construction grouting comprises the following steps: S31, slurry preparation; s32, rotary jet grouting is carried out; s33, grouting presetting is carried out; s34, removal and prefabrication are carried out; the step S4 of jet grouting pile reinforcement comprises the following steps: S41, reinforcement presetting; s42, an antifriction agent is laid; s43, reinforcement is completed; according to the construction technology, the early strength agent slurry, the first reinforcing liquid and the second reinforcing liquid are mixed, grouting is conducted in a repeated stepping mode through a four-hole method, and during grouting, high-pressure water and compressed air are introduced at the same time, so that cement slurry is prevented from being lost from particle gaps of a particle layer all the time.
本发明公开了一种高压旋喷桩施工工艺，包括以下步骤：S1施工准备、S2旋喷桩施工、S3第一次施工灌浆和S4二次施工灌浆；步骤S1施工准备包括以下步骤：S11：地质勘探；S12：确定图纸；S13：施工进行；步骤S2旋喷桩施工包括以下步骤：S21：确定中心点；S22：设计标高；S23：引孔预制；S24：旋喷管预制；步骤S3施工灌浆包括以下步骤：S31：泥浆制备；S32：旋喷注浆；S33：注浆预设；S34：移除预制；步骤S4旋喷桩加固包括以下步骤：S41：加固预设；S42：铺设减摩剂；S43：加固完成；该施工工艺，通过设置早强剂浆、加固液一和加固液二进行混合，采用四孔法反复步进式进行灌浆，在灌浆时，通过同时通入高压水和压缩空气，避免了水泥浆一直从颗粒层的颗粒缝隙中流失。
High-pressure jet grouting pile construction technology
一种高压旋喷桩施工工艺
LIU JINGGUO (author) / LU CHUNYU (author) / CHEN LEFENG (author) / QIAN CHENGCHE (author) / YAO LIANGLIANG (author) / TANG JINGWEI (author) / TAN XIN (author) / ZHANG JIANSHENG (author) / LIN WEI (author) / JIANG JIUXUE (author)
2024-08-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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