A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anchoring micro pile structure and construction method for reinforcing tunnel portal section side slope through anchoring micro pile structure
The anchoring micro pile structure comprises a micro pile and an anchoring structure for cable-stayed anchoring of the micro pile, the micro pile is arranged in a micro pile drill hole, and the anchoring structure is arranged in an anchor rod drill hole; the micro pile grouting body is located among an inner cavity of the steel pipe, the outer wall of the steel pipe and the inner wall of a micro pile drilling hole, and the lower end of the steel pipe is located below a sliding face below a landslide mass; the anchoring structure is composed of an anchor rod, an anchorage device and an anchor rod grouting body, and an anchor rod hole is formed in the upper end of the steel pipe. The construction method of the anchoring micro pile structure comprises the following steps: a) preparing for construction; b) measuring and setting out; c) micro pile construction; and d) constructing an anchoring structure. According to the anchoring micro pile structure and the construction method, the slenderness ratio of the micro piles is effectively reduced, the bending moment of the micro piles is reduced, a landslide body is jointly prevented from sliding down through combination of the anchoring structure and the micro piles, and treatment of landslide diseases of the side slope of the tunnel portal section is effectively achieved.
本发明的锚拉微型桩结构，包括微型桩和对微型桩进行斜拉锚固的锚拉结构，微型桩置于微型桩钻孔中，锚拉结构置于锚杆钻孔中；特征在于：微型桩由钢管以及位于钢管内腔和钢管外壁与微型桩钻孔内壁之间的微型桩注浆体构成，钢管的下端位于滑坡体下方的滑动面之下；锚拉结构由锚杆、锚具以及锚杆注浆体构成，钢管的上端开设有锚杆孔。本发明的锚拉微型桩结构的施工方法，包括：a).施工准备；b).测量放线；c).微型桩施工；d).锚拉结构施工。本发明的锚拉微型桩结构及施工方法，有效减小了微型桩的长细比相应，减少了微型桩弯矩，利用锚拉结构与微型桩的结合来共同防止滑坡体下滑，有效实现了对隧道洞口段边坡的滑坡病害的治理。
Anchoring micro pile structure and construction method for reinforcing tunnel portal section side slope through anchoring micro pile structure
The anchoring micro pile structure comprises a micro pile and an anchoring structure for cable-stayed anchoring of the micro pile, the micro pile is arranged in a micro pile drill hole, and the anchoring structure is arranged in an anchor rod drill hole; the micro pile grouting body is located among an inner cavity of the steel pipe, the outer wall of the steel pipe and the inner wall of a micro pile drilling hole, and the lower end of the steel pipe is located below a sliding face below a landslide mass; the anchoring structure is composed of an anchor rod, an anchorage device and an anchor rod grouting body, and an anchor rod hole is formed in the upper end of the steel pipe. The construction method of the anchoring micro pile structure comprises the following steps: a) preparing for construction; b) measuring and setting out; c) micro pile construction; and d) constructing an anchoring structure. According to the anchoring micro pile structure and the construction method, the slenderness ratio of the micro piles is effectively reduced, the bending moment of the micro piles is reduced, a landslide body is jointly prevented from sliding down through combination of the anchoring structure and the micro piles, and treatment of landslide diseases of the side slope of the tunnel portal section is effectively achieved.
本发明的锚拉微型桩结构，包括微型桩和对微型桩进行斜拉锚固的锚拉结构，微型桩置于微型桩钻孔中，锚拉结构置于锚杆钻孔中；特征在于：微型桩由钢管以及位于钢管内腔和钢管外壁与微型桩钻孔内壁之间的微型桩注浆体构成，钢管的下端位于滑坡体下方的滑动面之下；锚拉结构由锚杆、锚具以及锚杆注浆体构成，钢管的上端开设有锚杆孔。本发明的锚拉微型桩结构的施工方法，包括：a).施工准备；b).测量放线；c).微型桩施工；d).锚拉结构施工。本发明的锚拉微型桩结构及施工方法，有效减小了微型桩的长细比相应，减少了微型桩弯矩，利用锚拉结构与微型桩的结合来共同防止滑坡体下滑，有效实现了对隧道洞口段边坡的滑坡病害的治理。
Anchoring micro pile structure and construction method for reinforcing tunnel portal section side slope through anchoring micro pile structure
一种锚拉微型桩结构及其加固隧道洞口段边坡的施工方法
MIAO GUIHUA (author) / HE LIXIA (author) / WANG YANCHAO (author) / WANG HUSHENG (author) / LIU HENGTONG (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Tunnel portal soft foundation micro pile reinforcing structure
| European Patent Office | 2024
Construction method of variable cross-section anchoring type micro pile
| European Patent Office | 2021
Anchoring pile construction device and anchoring pile construction method
| European Patent Office | 2024
Anchoring pile slope supporting structure and construction method thereof
| European Patent Office | 2022