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A platform for research: civil engineering, architecture and urbanism
Geotechnical engineering sectional type hollow grouting anchor cable and grouting method
The invention provides a geotechnical engineering sectional type hollow grouting anchor cable. The geotechnical engineering sectional type hollow grouting anchor cable comprises a hollow anchor cablebody (1), a hollow anchor cable lock head (11) and an anchor cable tray (12), wherein a through hole (13), a steel strand (14) of an anchor cable rod body and a grout outlet (15) of the anchor cable rod body are formed in the center of the anchor cable rod body; a hole sealing device (2) is arranged at the outer end of the hollow anchor cable rod body; one or more middle isolation devices (6) arearranged on the outer wall of the hollow anchor cable rod body at intervals; grouting pressure opening devices (4) are arranged at the positions, below the middle isolation devices (6), of the hollowanchor cable rod body, and when grout reaches the rated pressure, the grout outlet (5) breaks through a pressure pipe wall (41) to open the next-stage grouting process; a self-expansion anchoring device (7) is arranged at the inner end of the hollow anchor cable rod body, and anchoring can be conducted according to needs; a first-stage grout outlet is formed in the upper portion of the hollow anchor cable rod body; and the number of the grouting pressure opening devices is the same as that of the middle isolation devices. The geotechnical engineering sectional type hollow grouting anchor cablehas the beneficial effects that the grouting sequence can be changed from inside to outside and from deep to shallow; and sectional grouting is achieved, grouting is more uniform, the grout running amount is greatly reduced, and the grouting supporting effect is greatly improved. The invention further discloses a sectional type hollow grouting method.
一种岩土工程分段式中空注浆锚索，包括中空锚索体(1)、中空锚索锁头(11)、锚索托盘(12)，所述锚索杆体中心具有通孔(13)，锚索杆体的钢绞线(14)和锚索杆体的出浆口(15)；所述中空锚索杆体外端封孔装置(2)；所述中空锚索杆体外壁上间隔设置一个或数个中间隔离装置(6)；所述中空锚索杆体在每个中间隔离装置(6)以下安装注浆压力开启装置(4)，实现浆液达到额定压力时，从出浆口(5)突破压力管壁(41)开启下一级的注浆过程；所述中空锚索杆体内端头设自膨胀锚固装置(7)，也可根据需要不进行锚固；所述中空锚索杆体上部具有第一级出浆口；所述注浆压力开启装置个数与中间隔离装置个数相同。该分段式中空注浆锚索优势能够使得注浆顺序由里到外，由深到浅；实现分段注浆，注浆更加均匀，跑浆量大幅度降低，注浆支护效果大幅度增加。还公开一种分段式中空注浆方法。
Geotechnical engineering sectional type hollow grouting anchor cable and grouting method
The invention provides a geotechnical engineering sectional type hollow grouting anchor cable. The geotechnical engineering sectional type hollow grouting anchor cable comprises a hollow anchor cablebody (1), a hollow anchor cable lock head (11) and an anchor cable tray (12), wherein a through hole (13), a steel strand (14) of an anchor cable rod body and a grout outlet (15) of the anchor cable rod body are formed in the center of the anchor cable rod body; a hole sealing device (2) is arranged at the outer end of the hollow anchor cable rod body; one or more middle isolation devices (6) arearranged on the outer wall of the hollow anchor cable rod body at intervals; grouting pressure opening devices (4) are arranged at the positions, below the middle isolation devices (6), of the hollowanchor cable rod body, and when grout reaches the rated pressure, the grout outlet (5) breaks through a pressure pipe wall (41) to open the next-stage grouting process; a self-expansion anchoring device (7) is arranged at the inner end of the hollow anchor cable rod body, and anchoring can be conducted according to needs; a first-stage grout outlet is formed in the upper portion of the hollow anchor cable rod body; and the number of the grouting pressure opening devices is the same as that of the middle isolation devices. The geotechnical engineering sectional type hollow grouting anchor cablehas the beneficial effects that the grouting sequence can be changed from inside to outside and from deep to shallow; and sectional grouting is achieved, grouting is more uniform, the grout running amount is greatly reduced, and the grouting supporting effect is greatly improved. The invention further discloses a sectional type hollow grouting method.
一种岩土工程分段式中空注浆锚索，包括中空锚索体(1)、中空锚索锁头(11)、锚索托盘(12)，所述锚索杆体中心具有通孔(13)，锚索杆体的钢绞线(14)和锚索杆体的出浆口(15)；所述中空锚索杆体外端封孔装置(2)；所述中空锚索杆体外壁上间隔设置一个或数个中间隔离装置(6)；所述中空锚索杆体在每个中间隔离装置(6)以下安装注浆压力开启装置(4)，实现浆液达到额定压力时，从出浆口(5)突破压力管壁(41)开启下一级的注浆过程；所述中空锚索杆体内端头设自膨胀锚固装置(7)，也可根据需要不进行锚固；所述中空锚索杆体上部具有第一级出浆口；所述注浆压力开启装置个数与中间隔离装置个数相同。该分段式中空注浆锚索优势能够使得注浆顺序由里到外，由深到浅；实现分段注浆，注浆更加均匀，跑浆量大幅度降低，注浆支护效果大幅度增加。还公开一种分段式中空注浆方法。
Geotechnical engineering sectional type hollow grouting anchor cable and grouting method
一种岩土工程分段式中空注浆锚索及注浆方法
CHENG YUNHAI (author) / BAI JINCHAO (author)
2020-06-12
Patent
Electronic Resource
Chinese
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