The continuous external thread is made by hot extrolling method. The shape of thread bar is shown as following figure.
The main diameter is 15mm to 75mm and the strength is 500MPa to 1080MPa.
Soil nailing uses grouted, tension-resisting steel elements (nails) to reinforce in situ soils and create a gravity retaining wall for permanent or temporary excavation support.
The continuous external thread is made by hot extrolling method. The shape of thread bar is shown as following figure.
The main diameter is 15mm to 75mm and the strength is 500MPa to 1080MPa.
Soil nail full threaded steel bar PSB830 accessoriesAll Couplings and Hex/Collar Nuts exceed 100% of the bar’s published ultimate strength and couplings will meet ACI 318 Section 25.5.7.1 for mechanical rebar connections.
Type Couplings
Hex/Collar Nuts
The lock nut is better with high-strength nut and hexagonal nut
Soil nail walls are generally constructed from the top down. Typically, the soil is excavated in three to six feet deep stages. After each excavation stage, near-horizontal holes are drilled into the exposed face at typically three to six-foot centers. Tension-resisting steel bars are inserted into the holes and grouted in place. A drainage system is installed on the exposed face, followed by the application of reinforced shotcrete wall facing. Precast face panels can also be used. Bearing plates are then fixed to the heads of the soil nails. This installation process is repeated until the design wall depth is reached. The finished soil nails then produce a zone of reinforced ground.
Hebei Jiufu Industrial and Mining Parts Co., Ltd. is a manufacturer specializing in the supply of supporting materials for coal mining, construction engineering and large-scale concrete projects. It mainly produces self-drilling bolts, friction bolts, glass fiber reinforced plastic solid bolts
