construction and installation of structures used to stabilize soil and rock formations residing on and adjacent to man made structures in the field of civil engineering including roads, bridges, buildings, abutments, retaining walls, pilings, rock walls, excavation supports, railroad lines, culverts, and shoring

'abut':31 'adjac':16 'bridg':29 'build':30 'civil':25 'construct':1 'culvert':41 'engin':26 'excav':37 'field':23 'format':12 'includ':27 'instal':3 'line':40 'made':19 'man':18 'pile':34 'railroad':39 'resid':13 'retain':32 'road':28 'rock':11,35 'shore':43 'soil':9 'stabil':8 'structur':5,20 'support':38 'use':6 'wall':33,36

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