The invention relates to a
layout method for a surveying
control network. The
layout method comprises the following steps:
layout of control points in an overall plane
control network: controlling point positions of surveyed points by using a cross-shaped small
portal frame, and embedding prefabricated
cement columns on the controlled point positions, wherein the prefabricated
cement columns are made from deposit concrete of reinforcing steel bars, the reinforcing steel bars are reinforcing steel bars with the diameters of greater than 30 mm, the upper ends of the reinforcing steel bars are rubbed down, cross curves are carved as mark points, the lower ends of the reinforcing steel bars are bent into hooks, the reinforcing steel bars are poured into concrete, and the dimensions of the bottoms of the columns are not smaller than those of the tops of the columns; underground axis setting-out: erecting a
theodolite onto the positions of axis control piles on the edges of pits; and measurement of
structural engineering on the ground: calculating the X and Y coordinates of the horizontal control points according to X and Y coordinates given in a map, and carrying out re-checking of thecontrol points by using a
total station. The layout method has the advantages that the method is convenient and simple in operation and the measurement accuracy is improved. The control piles are firmand reliable and are not influenced by the environment, and the subsequent measurement accuracy is ensured.