Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Static pressure expansion chemical anchoring type anchor rod and construction method thereof
The invention provides a static pressure expansion chemical anchoring type anchor rod and a construction method thereof. The static pressure expansion chemical anchoring type anchor rod is composed of a chemical expansion inner core, a metal thin-wall outer cylinder and a concrete partition section. According to the static pressure expansion chemical anchoring type anchor rod, a plurality of chemical expansion inner cores separated by concrete separation sections are arranged in a metal thin-wall outer cylinder. The anchor rod is placed in a soil body of a pre-drilled hole, a static pressure effect is applied to the tail portion of the anchor rod, so that the outer wall of the pre-broken piece of the chemical expansion inner core is extruded outwards to deform and occlude with the surrounding soil body, meanwhile, the static pressure effect can crush the chemical expansion inner core, and the pre-broken piece of the chemical expansion inner core is fixed through a special chemical adhesive in the chemical inner core. And the chemical expansion inner core fragments, the metal thin-wall outer cylinder and the concrete separation sections are fixed in a drill hole in a cementing mode, so that anchoring of the anchor rod is achieved. The static pressure expansion chemical anchoring type anchor rod can be used in projects such as side slope reinforcement projects and excavation free face reinforcement projects, the stability of a side slope is effectively controlled, operation is easy, convenient and rapid, and a large amount of construction material cost is saved.
本发明提出一种静压扩张化学锚固式锚杆及其施工方法。该静压扩张化学锚固式锚杆由化学扩张内芯、金属薄壁外筒、混凝土分隔段组成。该静压扩张化学锚固式锚杆在金属薄壁外筒中设置多个用混凝土分隔段隔开的化学扩张内芯。在预钻孔的土体中放入该锚杆，在尾部施加静压作用，使得化学扩张内芯的预破片外壁向外挤出变形，与周边土体产生咬合作用，同时静压作用会压碎化学扩张内芯，通过化学内芯里特制的化学粘接剂，将化学扩张内芯破片与金属薄壁外筒和混凝土分隔段胶结固定于钻孔中，以实现该锚杆的锚固。本发明的静压扩张化学锚固式锚杆可以用于边坡加固工程、挖方临空面加固等工程中，有效控制边坡的稳定，操作简便快捷，节约大量的施工材料成本。
Static pressure expansion chemical anchoring type anchor rod and construction method thereof
The invention provides a static pressure expansion chemical anchoring type anchor rod and a construction method thereof. The static pressure expansion chemical anchoring type anchor rod is composed of a chemical expansion inner core, a metal thin-wall outer cylinder and a concrete partition section. According to the static pressure expansion chemical anchoring type anchor rod, a plurality of chemical expansion inner cores separated by concrete separation sections are arranged in a metal thin-wall outer cylinder. The anchor rod is placed in a soil body of a pre-drilled hole, a static pressure effect is applied to the tail portion of the anchor rod, so that the outer wall of the pre-broken piece of the chemical expansion inner core is extruded outwards to deform and occlude with the surrounding soil body, meanwhile, the static pressure effect can crush the chemical expansion inner core, and the pre-broken piece of the chemical expansion inner core is fixed through a special chemical adhesive in the chemical inner core. And the chemical expansion inner core fragments, the metal thin-wall outer cylinder and the concrete separation sections are fixed in a drill hole in a cementing mode, so that anchoring of the anchor rod is achieved. The static pressure expansion chemical anchoring type anchor rod can be used in projects such as side slope reinforcement projects and excavation free face reinforcement projects, the stability of a side slope is effectively controlled, operation is easy, convenient and rapid, and a large amount of construction material cost is saved.
本发明提出一种静压扩张化学锚固式锚杆及其施工方法。该静压扩张化学锚固式锚杆由化学扩张内芯、金属薄壁外筒、混凝土分隔段组成。该静压扩张化学锚固式锚杆在金属薄壁外筒中设置多个用混凝土分隔段隔开的化学扩张内芯。在预钻孔的土体中放入该锚杆，在尾部施加静压作用，使得化学扩张内芯的预破片外壁向外挤出变形，与周边土体产生咬合作用，同时静压作用会压碎化学扩张内芯，通过化学内芯里特制的化学粘接剂，将化学扩张内芯破片与金属薄壁外筒和混凝土分隔段胶结固定于钻孔中，以实现该锚杆的锚固。本发明的静压扩张化学锚固式锚杆可以用于边坡加固工程、挖方临空面加固等工程中，有效控制边坡的稳定，操作简便快捷，节约大量的施工材料成本。
Static pressure expansion chemical anchoring type anchor rod and construction method thereof
一种静压扩张化学锚固式锚杆及其施工方法
WANG ZHANBIN (Autor:in) / ZHOU YUAN (Autor:in) / WU YONGXIN (Autor:in) / ZHANG FEI (Autor:in) / LIU LINGXIAO (Autor:in)
26.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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