Wyniki wyszukiwania - BazTech

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An inventory of opencast mining excavations recultivated in the form of water reservoirs as an example of activities increasing the retention potential of the natural environment: a case study from Poland

Szafarczyk Anna, Gawałkiewicz Rafał

Geology, Geophysics and Environment

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2023

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Vol. 49, no. 4

401--418

EN

The article presents examples of the employment of various geodetic measuring tools used for a detailed inventory of lake basins and shorelines. The measurement and analysis covered three post-mining open pit excavations recultivated as water reservoirs: two in Krakow (Bagry Wielkie and Bagry Małe) and one in Piaseczno (Piaseczno Sulphur Mine). Attention was paid to the factors that reduce the accuracy of the inventory of some flooded post-mining excavations, which determine the degree of usefulness of the morphometric data set for later analyses. According to available estimates, only about one-third of all water reservoirs in Poland have detailed geodetic documentation in the form of bathymetric maps. This documentation usually does not include water reservoirs of anthropogenic origin formed after the flooding of post-mining excavations (mines: sand, gravel, clay, limestone, sulphur, aggregates, etc.). The authors suggest the introduction of a document known as a reservoir documentation card and the creation of a database covering all anthropogenic water reservoirs. Considering the water deficit in Poland, it may be necessary to develop a detailed database of water resources in the short term.

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O geodezyjnej inwentaryzacji powykonawczej obiektu budowlanego

Dybeł K., Kampczyk A.

Inżynieria i Budownictwo

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2018

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R. 74, nr 6

327--329

PL

Geodezyjna inwentaryzacja powykonawcza obiektu budowlanego stanowi element zawiadomienia o zakończeniu budowy obiektu budowlanego bądź wniosku o udzielenie pozwolenia na użytkowanie. Zwrócono uwagę na brak w regulacjach prawnych definicji operatu technicznego oraz mapy inwentaryzacji powykonawczej.

EN

An as-built survey of a structure is an element of a construction completion notification or of an occupancy permit application. It was stressed that legal regulations define neither a technical report nor an as-built survey map.

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Terrestrial Laser Scanning in Monitoring Hydrotechnical Objects

Zaczek-Peplinska J., Kowalska M. E.

Journal of Ecological Engineering

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2016

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Vol. 17, nr 4

120--128

EN

Developing Terrestrial Laser Scanning technology is provided by modern measuring instruments, i.e. total stations and laser scanners. Owing to these instruments, periodic control measurements of concrete dams carried out as a part of geodetic surveying provide point models characterised by quasi-continuity. Basing on the results of these surveys, it is possible to conduct a number of geometric analyses, as well as to obtain information for detailed analytic and calculative deliberations. A scanner, similarly to a total station, determines spatial coordinates (X, Y, Z) of the surveyed points by identifying distances and angles. Registration of intensity of the reflected laser beam (Intensity) sent out by the scanner provides additional information on the surveyed object. Thanks to high working speed and a large amount of collected data, scanners have become an essential tool for a geodesist.This paper evaluates the possibility of applying Terrestrial Laser Scanning to test deformations and shifts of flagged points of concrete dam construction based on experimental measurements, including object inventory and evaluation of the dam’s concrete structure condition.

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Development of large concrete object geometrical model based on terrestrial laser scanning

Zaczek-Peplinska J., Popielski P., Kasprzak A., Wójcik P.

Reports on Geodesy and Geoinformatics

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2014

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Vol. 97

91--102

EN

The paper presents control periodic measurements of movements and survey of concrete dam on Dunajec River in Rożnów, Poland. Topographical survey was conducted using laser scanning technique. The goal of survey was data collection and creation of a geometrical model. Acquired cross- and horizontal sections were utilised to create a numerical model of object behaviour at various load depending of changing level of water in reservoir. Modelling was accomplished using finite elements technique. During the project an assessment was conducted to terrestrial laser scanning techniques for such type of research of large hydrotechnical objects such as gravitational water dams. Developed model can be used to define deformations and displacement prognosis.