A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed anchor rod construction method
The invention discloses a construction method of a pre-stressed anchor rod. The construction method comprises the following steps: measuring and positioning a hole site; the drilling machine forms a hole, the drilling angle of a drilling rod is adjusted according to the designed hole position and angle, after drilling is conducted to the set depth, the casing pipe in the drilling machine is pulled out, and the drilling procedure is completed; anchor rods are arranged, specifically, prefabricated anchor cables are put into the hole bottoms from the hole openings; grouting is conducted, specifically, a grouting pipe is inserted into the hole, a grouting machine is adopted to conduct grouting on the hole through the grouting pipe, and the outer sleeve of the drilling machine is pulled out section by section after the hole is filled with grout; slurry is supplemented, specifically, slurry is supplemented within the set time after grouting; secondary grouting is conducted, specifically, grouting holes are formed in the first range of the tail end of the anchor cable, the anchor cable is tensioned during grouting, and locking is conducted through an anchorage device after tensioning is completed; the steel waist beam is installed, specifically, the steel waist beam is installed on the surface of the component to be anchored, and after the anchor cable penetrates through the steel waist beam, prestress is applied according to the design requirement. The problem that in the prior art, a pre-stressed anchor rod construction method is poor in supporting effect in a soil layer with poor self-stability is solved.
本申请公开了一种预应力锚杆施工方法，包括如下步骤：测量、定孔位；钻机成孔，根据设计孔位及角度调整钻杆钻进角度，在钻至设定深度后，拔出钻机内套管，完成钻孔工序；锚杆安置，将预制好的锚索从孔口下入孔底；注浆，将注浆管插入孔内，采用注浆机通过注浆管向孔内注浆，在浆液注满后逐节拔出钻机的外套管；补浆，在注浆后的设定时间内进行补浆；二次压浆，在锚索末端的第一范围内设置注浆孔，在注浆对锚索进行张拉，张拉完成后利用锚具锁定；钢腰梁安装，将钢腰梁安装在待锚固构件的表面，将锚索穿过钢腰梁后按设计要求施加预应力。本申请解决了相关技术中的预应力锚杆施工方法在自稳定性较差的土层中支护效果较差的问题。
Prestressed anchor rod construction method
The invention discloses a construction method of a pre-stressed anchor rod. The construction method comprises the following steps: measuring and positioning a hole site; the drilling machine forms a hole, the drilling angle of a drilling rod is adjusted according to the designed hole position and angle, after drilling is conducted to the set depth, the casing pipe in the drilling machine is pulled out, and the drilling procedure is completed; anchor rods are arranged, specifically, prefabricated anchor cables are put into the hole bottoms from the hole openings; grouting is conducted, specifically, a grouting pipe is inserted into the hole, a grouting machine is adopted to conduct grouting on the hole through the grouting pipe, and the outer sleeve of the drilling machine is pulled out section by section after the hole is filled with grout; slurry is supplemented, specifically, slurry is supplemented within the set time after grouting; secondary grouting is conducted, specifically, grouting holes are formed in the first range of the tail end of the anchor cable, the anchor cable is tensioned during grouting, and locking is conducted through an anchorage device after tensioning is completed; the steel waist beam is installed, specifically, the steel waist beam is installed on the surface of the component to be anchored, and after the anchor cable penetrates through the steel waist beam, prestress is applied according to the design requirement. The problem that in the prior art, a pre-stressed anchor rod construction method is poor in supporting effect in a soil layer with poor self-stability is solved.
本申请公开了一种预应力锚杆施工方法，包括如下步骤：测量、定孔位；钻机成孔，根据设计孔位及角度调整钻杆钻进角度，在钻至设定深度后，拔出钻机内套管，完成钻孔工序；锚杆安置，将预制好的锚索从孔口下入孔底；注浆，将注浆管插入孔内，采用注浆机通过注浆管向孔内注浆，在浆液注满后逐节拔出钻机的外套管；补浆，在注浆后的设定时间内进行补浆；二次压浆，在锚索末端的第一范围内设置注浆孔，在注浆对锚索进行张拉，张拉完成后利用锚具锁定；钢腰梁安装，将钢腰梁安装在待锚固构件的表面，将锚索穿过钢腰梁后按设计要求施加预应力。本申请解决了相关技术中的预应力锚杆施工方法在自稳定性较差的土层中支护效果较差的问题。
Prestressed anchor rod construction method
预应力锚杆施工方法
ZHANG JIE (author) / WANG ZIWEI (author) / CHEN CHEN (author) / YAN XUTONG (author) / YUAN GUOQI (author) / WANG XIANGYUAN (author) / MA XIAOBAO (author) / WEN ZHE (author) / MENG YANG (author) / ZHENG SHUAI (author)
2023-10-24
Patent
Electronic Resource
Chinese
PREFABRICATED PRESTRESSED ANCHOR ROD CONSTRUCTION METHOD
| European Patent Office | 2020