Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Screw type grouting anchor rod structure and using method thereof
The invention discloses a screw type grouting anchor rod structure and a using method thereof. The screw type grouting anchor rod structure comprises a drill bit, a drill rod, a steel strand, a spring limiting stopper and an open-close type grouting structure. According to the screw type grouting anchor rod structure and the using method thereof, an anchor rod body is driven into a soil body through a drill hole in a construction working face, the steel strand penetrating through the spring limiting stopper penetrates into the anchor rod body, the spring limiting stopper is fixed to the rock-soil body, the drill bit and the drill rod are unscrewed, a grouting structure outside the drill bit is opened through high-pressure grouting, the drill bit and the drill rod are unscrewed, and grouting is conducted while the drill rod is removed till grouting is completed. The opening and closing type grouting structure works to form an external support, in the opening process of the support, the support and the rock-soil body are fully extruded to form extrusion resistance, friction resistance is generated in the rock-soil body to achieve the falling prevention effect, a structural face is formed outside the drill bit through grouting, and therefore the screw spike type grouting anchor rod structure achieves the optimal anchoring state, and the stability of the rock-soil body is enhanced; and according to the screw type grouting anchor rod structure, the anchor rod drill bit is driven into the rock-soil body, the engineering amount is reduced, meanwhile, the steel strand improves various performance of concrete, anchoring force is greatly improved, the problem of falling off is solved to a certain extent by grouting, pushing out, supporting and embedding into the soil body, the screw type grouting anchor rod is simple in structure and easy to operate, and the soil stabilizing and reinforcing capacity is high.
本发明型公开了一种螺丝钉式注浆锚杆结构及其使用方法，包括钻头、钻杆、钢绞线、弹簧限位器、开闭式注浆结构，所述螺丝钉式注浆锚杆结构及其使用方法在施工工作面上通过钻孔将锚杆主体打入土体内，穿入穿过弹簧限位器的钢绞线，弹簧限位器与岩土体固定，拧松钻头与钻杆的连接，高压注浆将钻头外部的注浆结构打开，拧掉钻头与钻杆的连接，边撤钻杆边注浆，直至注浆完毕。其中开闭式注浆结构工作形成外附支撑，支撑打开过程中与岩土体进行充分挤压形成挤压阻力，并与岩土体内产生摩阻力以达到防止脱落的效果，通过注浆在钻头外部形成结构面，从而使螺丝钉式注浆锚杆结构达到最佳的锚固状态，增强岩土体的稳定性；螺丝钉式注浆锚杆结构通过将锚杆钻头打入岩土体内，在减少工程量的同时，钢绞线提高了混凝土的各项性能锚固力也得到了大幅度的提升，通过注浆推出支撑嵌入土体在一定程度上解决了脱落问题，螺丝钉式注浆锚杆，结构简单，易于操作，对土体稳定加固能力强。
Screw type grouting anchor rod structure and using method thereof
The invention discloses a screw type grouting anchor rod structure and a using method thereof. The screw type grouting anchor rod structure comprises a drill bit, a drill rod, a steel strand, a spring limiting stopper and an open-close type grouting structure. According to the screw type grouting anchor rod structure and the using method thereof, an anchor rod body is driven into a soil body through a drill hole in a construction working face, the steel strand penetrating through the spring limiting stopper penetrates into the anchor rod body, the spring limiting stopper is fixed to the rock-soil body, the drill bit and the drill rod are unscrewed, a grouting structure outside the drill bit is opened through high-pressure grouting, the drill bit and the drill rod are unscrewed, and grouting is conducted while the drill rod is removed till grouting is completed. The opening and closing type grouting structure works to form an external support, in the opening process of the support, the support and the rock-soil body are fully extruded to form extrusion resistance, friction resistance is generated in the rock-soil body to achieve the falling prevention effect, a structural face is formed outside the drill bit through grouting, and therefore the screw spike type grouting anchor rod structure achieves the optimal anchoring state, and the stability of the rock-soil body is enhanced; and according to the screw type grouting anchor rod structure, the anchor rod drill bit is driven into the rock-soil body, the engineering amount is reduced, meanwhile, the steel strand improves various performance of concrete, anchoring force is greatly improved, the problem of falling off is solved to a certain extent by grouting, pushing out, supporting and embedding into the soil body, the screw type grouting anchor rod is simple in structure and easy to operate, and the soil stabilizing and reinforcing capacity is high.
本发明型公开了一种螺丝钉式注浆锚杆结构及其使用方法，包括钻头、钻杆、钢绞线、弹簧限位器、开闭式注浆结构，所述螺丝钉式注浆锚杆结构及其使用方法在施工工作面上通过钻孔将锚杆主体打入土体内，穿入穿过弹簧限位器的钢绞线，弹簧限位器与岩土体固定，拧松钻头与钻杆的连接，高压注浆将钻头外部的注浆结构打开，拧掉钻头与钻杆的连接，边撤钻杆边注浆，直至注浆完毕。其中开闭式注浆结构工作形成外附支撑，支撑打开过程中与岩土体进行充分挤压形成挤压阻力，并与岩土体内产生摩阻力以达到防止脱落的效果，通过注浆在钻头外部形成结构面，从而使螺丝钉式注浆锚杆结构达到最佳的锚固状态，增强岩土体的稳定性；螺丝钉式注浆锚杆结构通过将锚杆钻头打入岩土体内，在减少工程量的同时，钢绞线提高了混凝土的各项性能锚固力也得到了大幅度的提升，通过注浆推出支撑嵌入土体在一定程度上解决了脱落问题，螺丝钉式注浆锚杆，结构简单，易于操作，对土体稳定加固能力强。
Screw type grouting anchor rod structure and using method thereof
一种螺丝钉式注浆锚杆结构及其使用方法
WANG KUN (Autor:in) / ZHENG DAWEI (Autor:in) / MA WUWEI (Autor:in)
20.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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