Multi-temporal survey of diaphragm wall with terrestrial laser scanning method

Abstract

The development of measurement technologies allows for acquiring various data. The Terrestrial Laser Scanning (TLS) technology is frequently combined with classic geodetic measurements – tacheometry or levelling. This article presents a process of the diaphragm wall monitoring during excavation supported with a top-down method. The construction technology applied required proper planning and performance of measurements in difficult construction site conditions in the city centre. TLS allowed for limiting works at daytime and performing monitoring during the night break in works at the construction site as well as limiting the impact of the subsoil process vibrations on the values of displacements and deformations determined. The authors present a comparison of the results of displacement and deformation measurements with a terrestrial laser scanning and tacheometric measurement method. The possibilities of using the data acquired, among others, for the indication of filtration areas, spatial surface deformation analyses and assessment of the wall execution compliance with the design are presented. The analyses carried out show that the TLS may be used in the investment process from the very beginning, being a component of the Building Information Modelling (BIM).

Asset information model requirements for industrial facility

“…After analyzing the tasks of the operational stage [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40], it can be noted that to solve most tasks, the requirements for LOD and LOI must correspond to a high level. Although the requirements for LOD, LOI and LOA may be low for some tasks, it is recommended that the development of requirements proceed from the perspective of using AIM to solve a set of operational tasks and determine LOD, LOI and LOA.…”

Application of Laser Scanning to Assess the Roughness of the Diaphragm Wall for the Estimation of Earth Pressure

“…One of the common applications of geodetic methods in relation to geotechnical structures is the measurement of displacements and deformations of soil or soil-structure systems. The widespread techniques and detailed descriptions of these studies are published, e.g., in [1][2][3]. Deformation analysis based on multitemporal Terrestrial Laser Scanning (TLS) surveys has been applied for many years in commercial and academic problem areas [4].…”