A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of variable cross-section anchoring type micro pile
The invention aims to disclose a construction method of a variable cross-section anchoring type micro pile. The construction method comprises the following steps of vertically driving the micro pile into a soil body of a slip mass, and enabling the middle point of a protective sleeve to be positioned on a slip crack surface; enabling an anchor rod to penetrate through a mounting hole, and driving one end of the anchor rod into the slip mass; and pressurizing and grouting from the top of the micro pile, wherein slurry seeps out from the open hole of the protective sleeve and forms a mixed material with the peripheral soil body so as to reinforce the peripheral soil body. The problem that the contact surface of the micro pile and the slip crack surface can be bent or even damaged in the prior art is solved.
本发明的目的是公开一种变截面锚固型微型桩的施工方法，施工方法包括以下步骤：将微型桩铅垂打入滑体的土体内，使保护套的中点位于滑裂面上；将锚杆穿过安装孔，并将锚杆的一端打入滑体内；从微型桩顶部加压注浆，浆液从保护套的开孔处渗出，与周边土体形成混合材料加固周边土体。解决了现有技术中微型桩在与滑裂面接触面处会发生弯曲甚至破坏的问题。
Construction method of variable cross-section anchoring type micro pile
The invention aims to disclose a construction method of a variable cross-section anchoring type micro pile. The construction method comprises the following steps of vertically driving the micro pile into a soil body of a slip mass, and enabling the middle point of a protective sleeve to be positioned on a slip crack surface; enabling an anchor rod to penetrate through a mounting hole, and driving one end of the anchor rod into the slip mass; and pressurizing and grouting from the top of the micro pile, wherein slurry seeps out from the open hole of the protective sleeve and forms a mixed material with the peripheral soil body so as to reinforce the peripheral soil body. The problem that the contact surface of the micro pile and the slip crack surface can be bent or even damaged in the prior art is solved.
本发明的目的是公开一种变截面锚固型微型桩的施工方法，施工方法包括以下步骤：将微型桩铅垂打入滑体的土体内，使保护套的中点位于滑裂面上；将锚杆穿过安装孔，并将锚杆的一端打入滑体内；从微型桩顶部加压注浆，浆液从保护套的开孔处渗出，与周边土体形成混合材料加固周边土体。解决了现有技术中微型桩在与滑裂面接触面处会发生弯曲甚至破坏的问题。
Construction method of variable cross-section anchoring type micro pile
一种变截面锚固型微型桩的施工方法
ZHANG YU (author) / LIU JIN (author) / DING XIAO (author) / ZHAO YANG (author) / MENG TIANYI (author) / FAN TEJIA (author) / XU CHENYANG (author) / YE SHENG (author)
2021-07-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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