The shotcrete machine is a new type of high-efficiency shotcrete machine in the province, so it has a wide range of working places, such as mines, tunnels, culverts, subways, hydropower projects, underground engineering, and shotcrete construction in coal mines' moor roadways. Especially when working on the slope of a foundation pit, you must pay special attention. Before working, you must first check the geology of the slope. Today, I will explain the geology to you.
The slope of the shotcrete machine foundation pit slope depends on the geology. Generally 1: 0.5-1: 1 is adopted. When the foundation is dug to the design elevation, a layer of 0.3m thick is reserved. Excavation to the design level, rapid inspection, and then foundation construction. If it is said that the foundation is to be passed during the construction process, a 1m wide protective channel must be set between the pit top and the access road, and a water intercepting ditch must be set on the top surface of the foundation pit to prevent ground water from flowing into the foundation pit. When grading excavation, first excavate the excavation line according to the calculation of the plane point before digging. After all the work is ready, you can start digging. When excavating, you need to dig with machinery to save labor. And material resources. In addition, when the excavation area of the foundation pit is sloped and excavated, a working surface of about 80 cm is left on each side. When excavating inside the steel sheet pile protection, it is sufficient to dig down the steel sheet pile. Drainage ditches and water collection wells shall be set up. After excavation, the dangerous stones around the foundation pit shall be treated, and if necessary, hanging net anchor spraying treatment shall be performed.
