Answer:
Explanation:
Soil nailing system is a popular method used for stabilizing deep excavations. It is a technique where reinforcing bars, known as nails, are drilled horizontally into the soil, and grouted or cemented into place. This process increases the soil's shear strength and decreases pore water pressure. Soil nailing is ideal for shallow to medium-deep excavations up to 30m depth.
The stability of deep excavations is key to preventing severe damage to adjacent buildings and infrastructures. Soil nailing is widely accepted as one of the most effective and economical solutions for this purpose. By using this technique, engineers can effectively stabilize the soil mass behind the excavation, thereby preventing failure mechanisms like sliding, overturning, and buckling.
Research has been carried out to investigate the effectiveness of soil nailing systems in stabilizing deep excavations. The results show that soil nailing is highly effective in stabilizing deep excavations, particularly when compared to other methods such as shotcrete, retaining walls, and soldier piles.
In conclusion, soil nailing is a popular and efficient method used for the stabilization of deep excavations. It provides a cost-effective solution and its effectiveness has been proven through extensive research studies. The use of soil nailing has become more widespread in recent years, due to its numerous advantages and benefits.
References:
1. Sharma A.K., Kulhawy F.H., and Wilkins M.D. (2005) Soil nailing for support of excavation: Recent advances and future directions. Journal of Geotechnical and Geoenvironmental Engineering, 131(7), pp. 916-927.
2. Chang M.F., Juang C.H., and Chiu C.P. (2011) Analysis of soil nail wall behavior under different conditions using a numerical model. Computers and Geotechnics, 38(5), pp. 666-678.