Water well drilling tools, also known as well drilling tools, are water flushing well drilling equipment, mainly used for drill bits, roadbeds, slope treatment, underground deep foundation pit support, tunnel surrounding rock stability, landslide prevention and other disaster treatment, underground Engineering support, and high-rise building foundation treatment, suitable for deep foundation pit jetting protection, slope soil nailing engineering non-prestressed anchor support.

　　Two methods are generally used to make soil-nailed walls: insert reinforcement through drilling and grouting to form mortar anchor rods. This method is time-consuming and material-consuming, and is not easy to construct on quicksand and sand layers; it is to use rebar, angle steel, steel pipe, and other materials. , Made into soil nails with machinery, or artificially driven into the soil or sand layer to form a soil nail wall.

　　Water well drilling tools are light in weight and compact in structure, which is conducive to mobile relocation. The roof bolter is composed of the main engine, a cylinder, an impactor, a hammerhead, an operating table, and a windpipe. The drilling rig is light in weight and compact in structure, which is conducive to moving and relocation. The roof bolter is composed of a host, an operating table, and a windpipe. The bolt installation machine uses a pneumatic hand-held bolt drill to install resin bolts, tighten and remove bolts and nuts, and can also be used for the installation and removal of bolts and nuts in other workplaces. The bolt installation machine uses a pneumatic hand-held bolt drill to install resin bolts, tighten and remove bolts and nuts, and can also be used for the installation and removal of bolts and nuts in other workplaces.

　　The layout of the drilling rig requires theodolite to accurately locate and mark the holes and anchor holes. The horizontal and vertical errors of the anchor rod are limited, the horizontal error is less than 50 mm, and the vertical error is less than 100 mm. Because the thickness of rocks and ground is unstable.

　　In addition to the geological survey data of the design site, the design can be modified at a critical moment, and the depth of the anchor rod cannot exceed the design length of 0.5m. The open-cut method is to excavate the collapsed body directly. This method is relatively safe and effective. Its limitation is that it can only be constructed near the surface, and the workload is relatively small. The deep underground method is difficult to construct. The pipe shed method is to insert steel pipes diagonally from the ground into the pipe shed. The strong support of the pipe prevents the arch from collapsing.

　　Anticorrosive anchor rods should be used in tunnel construction, such as anchor rod method, grouting pipe roof method, grouting method, pipe roof method, open channel method, and slab method.