Browsing by Subject "Embankments -- Design and construction"
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Item Influence of grout mix design and placement procedures on the integrity of installed soil nails(Texas Tech University, 2004-12) Turner, John BThe evolution of methods to stabilize vertical soil walls includes a technique referred to as soil nailing. This technique utilizes steel tendons embedded in cementitious grout to bind a consolidated soil mass together sufficiently to prevent sloughing of the soil mass as its face is excavated. This thesis summarizes an effort to determine the factors related to the grout and its installation which affect wall stability. This research found that proper installation of grout materials will occur only where the grout is placed using a tremie pipe or grout tube which reaches the full length of the soil nail tendon. Additionally, this study shows that grout consistency can be selected to suit the installer and that, installed properly, any grout of sufficient strength which can be pumped using a general purpose concrete or grout pump should properly fill the soil nail borehole and embed the tendon.