nail fold

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nail fold

n.
A fold of hard skin overlapping the base and sides of a fingernail or toenail.
References in periodicals archive ?
Although software programs for soil nailing are available to design nail size and length, they lack the capability to design temporary or permanent wall-facing elements or check the stability of the overall soil nail wall system.
Addressing first supported excavations and then mechanically stabilized earth retaining walls, the 93 selected and refereed papers examine such topics as recommendations for assessing bending moments for stiff wall systems, results of an instrumented helical soil nail wall, the design and construction of circular cofferdams for earth retention in a flyash disposal basin, mobilizing reinforcement tension with geosynthetic-reinforced soil structures, the collapse of mechanically stabilized earth wall panels due to the effects of freezing temperatures, the seismic design of retaining walls, a three-dimensional analysis of the construction process for tunneling Donghu Metro Station in Guangzhou, and prehistoric landslide stabilization with ground anchors and surface reaction pads.
According to published FHWA reports, the average soil nail wall is 1,335 m2, with an average cost of $350 m2.
After a review of several options, EFLHD decided to install a 290-meter (950-foot)-long soil nail wall consisting of a 305-centimeter (12-inch)thick shotcrete wall with internal drainage and high-strength steel anchor bars drilled and grouted into rock for lateral support.