Detection method for ground surface settlement

Abstract

The invention provides a detection method for ground surface settlement. The detection method comprises the steps that firstly, the position of a rear-view point is arranged outside a region to be detected; secondly, a plurality of settlement marks are arranged in the region to be detected; thirdly, an automatic tracking total station is arranged outside the region to be detected, and the data output end of the automatic tracking total station is connected with a computer center; fourthly, the automatic tracking total station is used for carrying out first-time artificial observation and aiming reading one by one; fifthly, the automatic tracking total station is started and carries out detection after being centered through a forced centering device; sixthly, the computer center carries out data processing, and a settlement value is obtained through a two-time superposition subtraction method. By means of the detection method for ground surface settlement, personnel do not need to enter water for work, measuring conditions are greatly improved, the working efficiency is improved, and engineering cost is saved.

Description

technical field [0001] The invention belongs to the field of construction equipment, in particular to a detection method for ground subsidence. Background technique [0002] Land reclamation is the oldest way for humans to use ocean space. The purpose of the study is to use the research results of the relevant mathematical models and combine the current situation of the marine ecological environment in the project area to analyze the impact on the ecological environment and fishery resources due to the encroachment of the wetland by the project itself and the change of the hydrodynamic conditions in the surrounding sea area after the formation of the land reclamation project. In the land-making process, the soft soil foundation needs to be processed, and various parameters must be monitored and tested. Among them, the observation of surface settlement is the most important measurement data. The commonly used method is geometric leveling, which has different levels of measure...

AI Technical Summary

Problems solved by technology

The purpose of the study is to use the research results of the relevant mathematical models and combine the current situation of the marine ecological environment in the project area to analyze the impact on the ecological environment and fishery resources due to the encroachment of the wetland by the project itself and the change of the hydrodynamic conditions in the surrounding sea area after the formation of the land reclamation project. In the land-making process, the soft soil foundation needs to be processed, and various parameters must be monitored and tested. Among them, the observation of surface settlement is the most important measurement data. The commonly used method is geometric leveling, which has different levels of measurement. In addition, it is necessary to manually launch the vertical ruler to check the data during the observation, and the workload is very large. If the extracted pore water vacuum is combined with surcharge preloading, the surveyors must also wear rubber pants to work in the water, which increases the intensity of the work. In the cold winter season, the measurement is more difficult, seriously affecting the measurement progress