Pile poles and their embedding methods for plane elevation measurement control points in soft soil areas

Abstract

The invention provides a soft soil area plane height measurement control point and an embedding method of the soft soil area plane height measurement control point. The soft soil area plane height measurement control point comprises a surveying rod, wherein a core column made of cement mortar is arranged in the surveying rod, the bottom of the surveying rod is embedded to a dense sand layer or a solid bearing layer, a steel protecting tube is sheathed on a part of the surveying rod, which is exposed above the ground, an upper opening of the steel protecting tube is flush with the top end of the surveying rod, and a concrete abutment is poured to the periphery of the steel protecting tube. The embedding method comprises the following steps: embedding the surveying rod into a drilling hole, injecting the cement mortar to form the core column, installing the steel protecting tube, pouring the concrete abutment, fixing a surveying marker and repairing and building safeguards. The soft soil area plane height measurement control point and the embedding method have the advantages of reasonable structure, mature construction process, long service life and the like and are especially suitable for embedding the soft soil area plane height deep embedded measurement control point, and the stability of the basic point surveying rod can be guaranteed.

Description

technical field [0001] The invention relates to control and measurement reference facilities for large-scale building construction measurement, settlement monitoring, operation and maintenance, etc., and in particular to a pile rod and an embedding method for control points of deep-buried plane elevation measurement in soft soil areas. Background technique [0002] Control surveying is a discipline that studies the precise determination of the spatial position of ground points. The network formed by these points is called the control network, and its task is to serve as the basis for the lower-level survey work and play a role in controlling the accuracy. In the actual survey work, first select some points with control significance in the survey area, firstly determine their plane position and elevation accurately, and then determine other fragmentary points based on them. [0003] In the prior art, the commonly used way of embedding control points is to make a mark and bur...

AI Technical Summary

Problems solved by technology

But this invention structure is comparatively complicated, and work efficiency is not high, and is not applicable to the measurement control point embedding of soft soil area

Images