Pipe-jacking construction monitoring control method

Abstract

The invention discloses a pipe-jacking construction monitoring control method. The pipe-jacking construction monitoring control method comprises the steps that an axis reference point A and an axis reference point B are arranged according to pipe-jacking design requirements, an axis direction control point D is arranged at a starting hole in a foundation pit, an elevation control point C is arranged on a tunneling guide rail base, and a target is arranged on a tunnel face; the axis reference points are led to a laser level arrangement position zero point on a working well base surface; the point D is aimed through a vertical line emitted by a laser level to check the axis with the target, and the axis direction is controlled; the elevation of the point C is aimed through the vertical lineemitted by the laser level to serve as a rear view point to check with the target, and the elevation is controlled; and deviation rectification is conducted on pipe-jacking tunneling according to deviation data on a measuring light target. The laser level is combined with a suspension wire method, the center of a suspension wire plumb bob is centered through center bubbles of the laser level to serve as a datum point, a cross ray of the laser level aims at a front-section axis point, and the ray is projected to the target on the tunnel face for checking the axis and the elevation, so that thepurpose of deviation rectification is achieved.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering construction, and is especially suitable for measurement and correction control technology in pipe jacking construction in sand and gravel formations, and in particular relates to a monitoring and control method for pipe jacking construction. Background technique [0002] In building construction, especially in underground building construction, it is often necessary to carry out machine pit or tunnel construction operations in sand and gravel strata. Due to the geological characteristics of the sand and gravel strata, the particle size is relatively large in some sections, requiring manual pipe jacking construction. In pipe jacking construction, elevation and axis control are the most difficult points. In particular, sand and gravel strata are prone to deviation and difficult to correct. The quality control of the pipeline axis and elevation directly affects whether the line can be...

AI Technical Summary

Problems solved by technology

The invention mainly solves the problems of artificial pipe jacking construction elevation and axis monitoring and control in sand and gravel strata

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