The method of parallel lines

Geodesy
UDC: 
528.28
DOI: 
10.22389/0016-7126-2017-920-2-10-12
1 Murzaikin I.Ya.
2 Murzaykin A.I.
Year: 
2017
№: 
2
920
Pages: 
10-12

Ulyanovsk State Agricultural Academy named after P.A. Stolypin

1, 
2, 
Abstract:
The features of structures’ deformations definition are considered, using the method of parallel lines. As basic marks it is recommended to use a tubular type of marks with a bom on a little table having two apertures (with the displaced centres) for installing the device and smaps. Usually, the quantity of parallel lines does not exceed two. Mainly one additional line which displaced concerning to the basic line on known size within of 50–100 mm is used. The control of vision at definition of displacement is the constancy of divergences of results of friability sizes received from two parallel lines. In clause it is marked that the presence second line allows to spend supervision from one end line but this to have independent measurement of friability sizes. The practice of conducting jobs has shown that as a result of use of parallel lines method it was possible to achieve some increase of accuracy of measurement.
References: 
1.   Karlson A.A. Izmerenie deformacij gidrotekhnicheskih sooruzhenij. M.: Nedra, 1984, 245 p.
2.   Murzajkin I.Ya. Opornye znaki i vizirnye celi pri vysokotochnyh izmereniyah. Vestn. TashGTU, 2006, no. 3, pp. 150–153.
3.   Murzajkin I.Ya., Nuzhnyj A.I. Geodezicheskie metody opredeleniya osadok i smeshchenij sooruzhenij. Ul'yanovsk: izd. UGSKHA, 2008, 258 p.
4.   Murzajkin I. Ya., Kolmakov Yu. A. Ispol'zovanie geodezicheskih znakov so smeshchyonnym centrom i ogolovkom. Vestn. ULGTU, 2012, no. 3, pp. 53–55.
5.   Murzaikin I.Ya. (2009) Stability control of horizontal and vertical reference network. Geodezia i Kartografia, 70(9), pp. 15–18.
Citation:
Murzaikin I.Ya., 
Murzaykin A.I., 
(2017) The method of parallel lines. Geodesy and cartography = Geodezia i Kartografia, (2), pp. 10-12. (In Russian). DOI: 10.22389/0016-7126-2017-920-2-10-12
Publication History
Received: 29.12.2015
Accepted: 05.07.2016
Published: 28.02.2017

Content

2017 february DOI:
10.22389/0016-7126-2017-920-2