Method and system for positioning structure in cofferdam

The invention discloses a method and system for positioning a structure in a cofferdam, and relates to the field of bridge construction, and the method comprises the following steps: determining a feature point of each to-be-measured direction on the structure; and correspondingly calibrating two ax...

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Hauptverfasser: XU XIN, WANG GUANGFU, WANG YI, WANG TONGMIN, QU XIAOQUAN, LI SHIZHAN, DONG ZHICHENG, FANG JUN, ZHANG YANWU, DU CAO, HAN GUOQING, ZHANG YUECHENG, WANG KE
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creator XU XIN
WANG GUANGFU
WANG YI
WANG TONGMIN
QU XIAOQUAN
LI SHIZHAN
DONG ZHICHENG
FANG JUN
ZHANG YANWU
DU CAO
HAN GUOQING
ZHANG YUECHENG
WANG KE
description The invention discloses a method and system for positioning a structure in a cofferdam, and relates to the field of bridge construction, and the method comprises the following steps: determining a feature point of each to-be-measured direction on the structure; and correspondingly calibrating two axis points of which the connecting lines are parallel to the axis of the structure at the two ends ofthe top opening of the cofferdam based on the feature points in a to-be-measured orientation; erecting an observation device on the plumb bob surface passing through the two axis points on the top ofthe bearing platform; by taking an axis point corresponding to the to-be-measured orientation as a reference, establishing a working baseline, taking the working baseline as a reference, keeping thehorizontal angle of the observation device unchanged, adjusting the vertical angle to observe the horizontal ruler placed on the feature point, and reading scales on the horizontal ruler. reading thescales on the horizontal rul
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subjects EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GYROSCOPIC INSTRUMENTS
HYDRAULIC ENGINEERING
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SOIL SHIFTING
SURVEYING
TESTING
UNDERGROUND OR UNDERWATER STRUCTURES
title Method and system for positioning structure in cofferdam
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