Large-diameter steel cylinder vibration sinking measurement positioning method

Abstract

The invention provides a large-diameter steel cylinder vibration sinking measurement positioning method which comprises that after a steel cylinder coffer is lifted in place, a linkage vibration sinking system which is formed by multiple hydraulic vibrating hammers is adopted to conduct vibration sinking construction on the steel cylinder coffer. A positioning system which is provided with an adaptive reflecting prism and a content gauge is arranged on a rigid vibrating beam of the linkage vibration sinking system, and a plane position, a cylinder top level and a vertical and horizontal slope gradient of the steel cylinder are monitored by a global positioning system (GPS) receiving machine, an automatic tracking total station and a computer processing system. The large-diameter steel cylinder vibration sinking measurement positioning method can obtain various positioning data of the steel cylinder coffer, can achieve positioning and process monitoring of the steel cylinder coffer in the vibration sinking construction, obtains the plane position, the cylinder top level and the vertical and horizontal slope gradient of the steel cylinder, guides construction correction, and is simple and reliable, and high in measurement accuracy.

Description

technical field [0001] The invention belongs to the large-diameter steel cylinder cofferdam construction technology generated in the dry construction environment of water body viaduct construction, and specifically relates to a method for measuring and positioning the deviation and inclination of the large-diameter steel cylinder cofferdam during vibration-sinking construction. Background technique [0002] In the construction of large-scale waters, especially offshore viaducts, the wet installation process is generally used when installing prefabricated piers, that is, the installation and construction of prefabricated piers is carried out in the environment where water bodies exist, and buried caps are usually used for construction . However, in the construction environment, due to the weight of the prefabricated piers as high as thousands of tons, the volume and height are large, and the construction site requires more ships, and the wind direction for water blocking is r...

AI Technical Summary

Problems solved by technology

However, in the construction environment, due to the weight of the prefabricated piers as high as thousands of tons, the volume and height are large, and the construction site requires more ships, and the wind direction for water blocking is relatively large, due to the influence of the sea environment and wind and waves, prefabricated The pier will swing during hoisting and installation, and the anti-swing operation is more difficult. The mutual influence between construction ships also makes the construction more difficult, the construction period will be extended, and the risk points of construction will increase.

There is a big hidden danger in the quality of the post-cast holes of the prefabricated piers completed in this wet environment

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