A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Easily-collapsed hole stratum anchor cable hole forming equipment and synchronous hole washing and grouting construction method
The invention discloses anchor cable hole-forming equipment for a hole-collapsing-prone stratum and a synchronous hole washing and grouting construction method. The anchor cable hole-forming equipment for the hole-collapsing-prone stratum is composed of an alloy drill bit, a drill rod, a conversion section, a conversion bin connector, a pre-stressed anchor cable, an anchor plate, a centering support, a water injection pipe and a grouting pipe. The synchronous hole washing and grouting construction method for anchor cable hole forming in the hole collapse-prone stratum comprises the eight construction steps of hole guiding, drill rod mounting, conversion bin connector connecting, prestressed anchor cable mounting, water injection auxiliary anchor hole cutting, hole forming detection and cleaning, drill rod pulling synchronous high-pressure grouting and water injection and anchor cable prestress tensioning. The hollow drill rod is adopted to carry the anchor cable for water injection cutting drilling, a stable protection wall can be formed, and accidents such as hole collapse and drill jamming are reduced; the internal space of the drill rod serves as a slag suction channel, the grouting pipe and the water injection pipe are arranged, grouting and hole washing operation are synchronously conducted at the bottom of a drill hole, the construction period is greatly shortened, sludge at the bottom of the drill hole is synchronously conducted through negative pressure, and the problem that the drill hole is not cleaned thoroughly is solved.
本发明公开了一种易塌孔地层锚索成孔设备及同步洗孔注浆施工方法，易塌孔地层锚索成孔设备由合金钻头、钻杆、转换节段、转换仓接头、预应力锚索、锚固板、对中支架、注水管、注浆管组成；易塌孔地层锚索成孔同步洗孔注浆施工方法包括引孔、钻杆安装、连接转换仓接头、预应力锚索安装、注水辅助切割锚孔、成孔检测与清洗、拔钻杆同步高压注浆与注水、锚索预应力张拉八个施工步骤；采用空心钻杆携带锚索进行注水切割钻进，可形成稳定护壁，减少塌孔、卡钻等事故；钻杆内部空间作为吸渣通道，并设置注浆管和注水管，在钻孔底部同步进行注浆和洗孔作业，大大减少了施工周期，且同步通过负压对钻孔底部泥渣进行，解决了钻孔清孔不彻底问题。
Easily-collapsed hole stratum anchor cable hole forming equipment and synchronous hole washing and grouting construction method
The invention discloses anchor cable hole-forming equipment for a hole-collapsing-prone stratum and a synchronous hole washing and grouting construction method. The anchor cable hole-forming equipment for the hole-collapsing-prone stratum is composed of an alloy drill bit, a drill rod, a conversion section, a conversion bin connector, a pre-stressed anchor cable, an anchor plate, a centering support, a water injection pipe and a grouting pipe. The synchronous hole washing and grouting construction method for anchor cable hole forming in the hole collapse-prone stratum comprises the eight construction steps of hole guiding, drill rod mounting, conversion bin connector connecting, prestressed anchor cable mounting, water injection auxiliary anchor hole cutting, hole forming detection and cleaning, drill rod pulling synchronous high-pressure grouting and water injection and anchor cable prestress tensioning. The hollow drill rod is adopted to carry the anchor cable for water injection cutting drilling, a stable protection wall can be formed, and accidents such as hole collapse and drill jamming are reduced; the internal space of the drill rod serves as a slag suction channel, the grouting pipe and the water injection pipe are arranged, grouting and hole washing operation are synchronously conducted at the bottom of a drill hole, the construction period is greatly shortened, sludge at the bottom of the drill hole is synchronously conducted through negative pressure, and the problem that the drill hole is not cleaned thoroughly is solved.
本发明公开了一种易塌孔地层锚索成孔设备及同步洗孔注浆施工方法，易塌孔地层锚索成孔设备由合金钻头、钻杆、转换节段、转换仓接头、预应力锚索、锚固板、对中支架、注水管、注浆管组成；易塌孔地层锚索成孔同步洗孔注浆施工方法包括引孔、钻杆安装、连接转换仓接头、预应力锚索安装、注水辅助切割锚孔、成孔检测与清洗、拔钻杆同步高压注浆与注水、锚索预应力张拉八个施工步骤；采用空心钻杆携带锚索进行注水切割钻进，可形成稳定护壁，减少塌孔、卡钻等事故；钻杆内部空间作为吸渣通道，并设置注浆管和注水管，在钻孔底部同步进行注浆和洗孔作业，大大减少了施工周期，且同步通过负压对钻孔底部泥渣进行，解决了钻孔清孔不彻底问题。
Easily-collapsed hole stratum anchor cable hole forming equipment and synchronous hole washing and grouting construction method
易塌孔地层锚索成孔设备及同步洗孔注浆施工方法
2023-12-01
Patent
Electronic Resource
Chinese
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