Deformation survey and monitoring

To analyse and illustrate the deformation of buildings three-dimensional measuring data is used to calculate surface models. The required data is collected by photogrammetric evaluation of stereo images, totalstation measurements or with a laser scanner. Using these digital surface models, sections and heights are construed.

The continuous vertical movement of buildings is monitored at intervals. For that purpose precision levelling is performed using durably marked control points with digital levels and DNA levelling staffs. Inclinations and deformations are determined by a totalstation survey of control points and monitored. These metric surveys are repeated over several years and their results are presented in a suitable form as tables or graphics.

Reference projects:
seit 2015
Aschersleben
2011
Raitenhasslach
seit 2009
Zwickau
seit 2004
Quedlinburg
Castle and Collegiate Church of St Servatus 
seit 1999
Eilenstedt
1998-2002
Rostock
seit 1997
Eckartsburg
seit 1997
Merseburg
1995-1997
Halle (Saale)
1993-1995
Aschersleben

metric survey during the construction period

Large building projects at historic monuments are attended by complex metric surveys. Beyond the deformation-true totalstation survey as a basis for planning the changes in the building (documentation prior to demolition, monitoring measurement) are documented and specialised surveying during the construction phases can take place (stake-out, levelling and control measurements).

In addition to metric surveys of buildings, site plans and contour maps as well as tree population plans can be provided for a complex planning of reconstruction and conservation measures, disposal and supply plans and last but not least landscape planning.

Reference projects:

Metric surveys of buildings by totalstation

The metric building survey is achieved predominantly with a reflectorless electronic totalstation in a uniform coordinate system. A software interface specifically developed for coded totalstation survey of buildings ensures the combination of photogrammetry and metric building survey with a high level of detail.
Profile heights and axis can be marked in the building by meter markers, so that additional measuring by hand is possible. The measurements of all floor plans, cross and longitudinal sections, developed surfaces of walls, elevation drawings of facades etc. are evaluated in a CAD system.

Reference projects:
2015/2016
Paderborn
2015
Tellschütz
2013
Altdöbern
2012/2015
Salzwedel
2012
Gnandstein
2010/2015
Salzwedel
2010
Goseck
2008
Merseburg
2008
Hildesheim
2006
Goseck
2006
Weferlingen
2004
Beuster
2002-2003
Linderhof
2001
Weil der Stadt
2000
Goseck
1998
Wechselburg
1998
Leitzkau
1997-1998
Rostock
1995-1996
Leipzig
seit 1993
Leipzig
1993-1994
Kapellendorf