with integral soil anchors because compacted earth fill provides sound support and the resistance nature of tail walls with integral soil anchors actually increases from such loads wall heights of about 3 meters u2013 20 meters are easily retainable for open cell construction with integral soil anchors although longer or shorter sheets may be used however practical limitations are present for example longer sheets are difficult to handle and drive and are therefore less preferred cell width is preferably about 10 meters but can be varied to account for end conditions and low wall height transitions tail wall lengths vary significantly subject a wide number of design parameters sheet pile construction involves driving sheets a distance below the ground surface which by its very nature can be difficult if very deep driving is required difficulty can almost always be expected open cell structures with integral soil anchors of the present invention do not require deep embedment for stability due to the increased soil resistance provided by the integral soil anchors and as a result are easier to construct and have redundancy for unusual conditions such as toe scour toe liquification or overloads additionally sheets of the present invention may be driven with fast vibratory hammers alternatively open cell structures with integral soil anchors may include deep embedment for additional stability usually a one level template is adequate for open cell construction and wall tolerance is maintained by close attention to position and plumbness.