Soil Nailing Systems: Description and Design Examples
SOIL NAILING & GUNITING - PRACTICAL CONSTRUCTION ASPECTS
By
Ir. Neoh Cheng Aik (E-Geo Consultant Sdn Bhd)
MALAYSIA
ABSTRACT Soil nailing and guniting are cost-effective techniques commonly adopted by slope designers to reinforce or stabilize common shallow slips of residual soil cut slopes or enhance slope stability when cut slopes are very high or steep with low or unsatisfactory factor of safety. Generally, soil nailing is not recommended or not cost-effective in soft or loose or saturated slopes. Basically and normally, soil nailing consists of reinforcing the slope with reinforcement bars in drilled holes with cement grout until a block of soil mass is adequately formed to resist lateral earth pressure, sliding, overturning and bearing pressure and possess overall stability. In fact, soil nailing is quite similar to reinforced earth principle. Soil nails are usually installed with nail heads to disperse potential high load concentration at nail head when the slope is very steep and high. The nailed wall or slope surface is also normally and promptly protected with gunite facing to avoid the soil between the soil nails becoming unstable, especially when the slope is very steep (> 670).
Download
GUIA GENERAL
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Soil nailing abridge
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soil nailing design EXAMPLE
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SOIL NAILING & GUNITING - PRACTICAL CONSTRUCTION ASPECTS
By
Ir. Neoh Cheng Aik (E-Geo Consultant Sdn Bhd)
MALAYSIA
ABSTRACT Soil nailing and guniting are cost-effective techniques commonly adopted by slope designers to reinforce or stabilize common shallow slips of residual soil cut slopes or enhance slope stability when cut slopes are very high or steep with low or unsatisfactory factor of safety. Generally, soil nailing is not recommended or not cost-effective in soft or loose or saturated slopes. Basically and normally, soil nailing consists of reinforcing the slope with reinforcement bars in drilled holes with cement grout until a block of soil mass is adequately formed to resist lateral earth pressure, sliding, overturning and bearing pressure and possess overall stability. In fact, soil nailing is quite similar to reinforced earth principle. Soil nails are usually installed with nail heads to disperse potential high load concentration at nail head when the slope is very steep and high. The nailed wall or slope surface is also normally and promptly protected with gunite facing to avoid the soil between the soil nails becoming unstable, especially when the slope is very steep (> 670).
Download
GUIA GENERAL
*
Soil nailing abridge
*
soil nailing design EXAMPLE
*
