Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grouting reinforcement method for weak intercalated layer in pile end stress concentration area
The invention provides a grouting reinforcement method for a weak intercalated layer in a pile tip stress concentration area, which comprises the following steps: firstly, drilling exploration treatment is carried out on the weak intercalated layer below a pile foundation to determine geological parameters of the weak intercalated layer, and the weak intercalated layer comprises a pile tip soil area corresponding to a pile tip and a pile periphery soil area surrounding the outer side of the pile tip soil area; secondly, permeation filling grouting treatment is conducted on the soil layer defects of the soil area around the pile; thirdly, splitting grouting treatment is conducted on the remaining soil layer defects obtained after permeation filling grouting treatment; and finally, a cone area enveloped by the 45-degree divergence angle below the pile end is subjected to compaction grouting treatment, and the height of the cone area is the same as the thickness of the weak intercalated layer. According to the grouting reinforcement method for the weak intercalated layer in the pile end stress concentration area, the weak intercalated layer at the bottom of the pile foundation is subjected to composite grouting from outside to inside by adopting different grouting machines according to different stages, and finally the pile end reinforcement effect is achieved.
本发明提供了一种桩端应力集中区软弱夹层注浆加固方法，包括：首先，对桩基下方的软弱夹层进行钻探勘查处理，以确定软弱夹层的地质参数，软弱夹层包括与桩端对应的桩端土区域以及环绕桩端土区域外侧的桩周土区域；其次，对桩周土区域的土层缺陷进行渗透充填注浆处理；再次，对经过渗透充填注浆处理后的剩余土层缺陷进行劈裂注浆处理；最后，对桩端以下45º扩散角所包络的圆锥体区域进行压密注浆处理，圆锥体区域的高度与软弱夹层的厚度相同。本发明提供的桩端应力集中区软弱夹层注浆加固方法通过对桩基底部软弱夹层按不同阶段采用不同注浆机理由外向内进行复合注浆，最终达到桩端加固效果。
Grouting reinforcement method for weak intercalated layer in pile end stress concentration area
The invention provides a grouting reinforcement method for a weak intercalated layer in a pile tip stress concentration area, which comprises the following steps: firstly, drilling exploration treatment is carried out on the weak intercalated layer below a pile foundation to determine geological parameters of the weak intercalated layer, and the weak intercalated layer comprises a pile tip soil area corresponding to a pile tip and a pile periphery soil area surrounding the outer side of the pile tip soil area; secondly, permeation filling grouting treatment is conducted on the soil layer defects of the soil area around the pile; thirdly, splitting grouting treatment is conducted on the remaining soil layer defects obtained after permeation filling grouting treatment; and finally, a cone area enveloped by the 45-degree divergence angle below the pile end is subjected to compaction grouting treatment, and the height of the cone area is the same as the thickness of the weak intercalated layer. According to the grouting reinforcement method for the weak intercalated layer in the pile end stress concentration area, the weak intercalated layer at the bottom of the pile foundation is subjected to composite grouting from outside to inside by adopting different grouting machines according to different stages, and finally the pile end reinforcement effect is achieved.
本发明提供了一种桩端应力集中区软弱夹层注浆加固方法，包括：首先，对桩基下方的软弱夹层进行钻探勘查处理，以确定软弱夹层的地质参数，软弱夹层包括与桩端对应的桩端土区域以及环绕桩端土区域外侧的桩周土区域；其次，对桩周土区域的土层缺陷进行渗透充填注浆处理；再次，对经过渗透充填注浆处理后的剩余土层缺陷进行劈裂注浆处理；最后，对桩端以下45º扩散角所包络的圆锥体区域进行压密注浆处理，圆锥体区域的高度与软弱夹层的厚度相同。本发明提供的桩端应力集中区软弱夹层注浆加固方法通过对桩基底部软弱夹层按不同阶段采用不同注浆机理由外向内进行复合注浆，最终达到桩端加固效果。
Grouting reinforcement method for weak intercalated layer in pile end stress concentration area
一种桩端应力集中区软弱夹层注浆加固方法
MO ZHENLIN (Autor:in) / YUAN YONGQIANG (Autor:in) / YI XIANG (Autor:in) / XIAO YANG (Autor:in) / PENG XIAOJUN (Autor:in) / YANG SHAOPENG (Autor:in) / CHENG XIWEN (Autor:in) / CHEN HAOQI (Autor:in) / ZHANG LAN (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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