Although the regulations of the Mantelverordnung will only come into force on 01 August 2023, the new requirements may already have to be taken into account in current tenders and in construction projects whose execution begins before this date. Among other things, the scope of testing (parameters) and testing methods will be changed, so that old analysis results (e.g. according to LAGA M20) will only be comparable to a limited extent.

Processing of crushed concrete

With a high-precision survey using a 3D laser scanner, we were once again able to record three rock cellars, whose entrances are located in the street embankment, with centimeter accuracy and visualize them under city ground. Not only the location in relation to the above-ground use (building, open space, traffic area), but also the cover of the cellars could be reliably determined. In addition to the geological recording of the vaults, the cover and its structure is one of the decisive parameters for evaluating the geological stability of the cellars.

Monitoring site in one of the rock cellars

For this reason, we attach great importance to quality assurance in our company (more information hier). Interlaboratory tests and comparative measurements are also an important part of this. On the one hand, interlaboratory comparisons offer testing laboratories the opportunity to compare the results of their testing procedures with those of other testing laboratories under standardized conditions. In this way, their own performance can be reliably checked. On the other hand, monitoring authorities use the evaluation of the interlaboratory comparisons to decide on the compliance with qualitative approval requirements of individual testing laboratories. In 2021, we participated in the following round robin tests and comparative measurements:

Round robin test for soil sampling from trenches
At this event, organized by the Bavarian State Office for the Environment (LfU), all testing laboratories approved in Bavaria according to §18BBodSchG were present. Both walk-in trenches and non-walk-in trenches (from the excavator shovel) were sampled. Dr. Kunibert Eberlein and Hendrik Belz participated for the LGA..

Vortrag bei der DCONex in Essen

Verfasst am 21. Februar 2022.

Am 19. und 20. Januar 2022 fand die DCONex, Fachkongress mit begleitender Ausstellung für das Schadstoff-Management, in Essen statt, an der auch Dr. Jürgen Kisskalt und Fabian Ziegler teilnahmen.

Am ersten Veranstaltungstag stellte Herr Dr. Kisskalt die „GVSS – Handlungsempfehlungen zum Umgang mit asbesthaltigen Brandschutzklappen“ dem Fachpublikum vor.

Die Empfehlungen waren von einem Fachausschuss der GVSS unter Beteiligung von drei LGA-Mitarbeitern erarbeitet worden.

Weitere Informationen zum Thema:

„Asbesthaltige Brandschutzklappen – ein Update“

„Frisch veröffentlicht: Handlungsempfehlungen zum Umgang mit asbesthaltigen BSK“

„Brandschutzklappen-Inspektion“

DAkkS supervisory audit confirms the high quality of our sampling

Written on February 05 2022

On October 21, 2021, one of the regular supervisory audits by experts from the DAkkS (German Accreditation Body) took place at our company.

The report now available attests to our staff’s very high level of competence in sampling soil, soil gas, building substances and waste.

Our accreditation according to DIN EN ISO/IEC 17025 as well as our admission as Examination Center according to § 18 BBodSchG are thus confirmed.

Our services around sampling and measurements you will find here.

In order to ensure the safety of road users against geohazards such as rockfall and rock slides, the Bayreuth State Building Authority commissioned LGA IUA GmbH to carry out an assessment of potential danger areas along the B173 southwest of Schwarzenbach am Wald (Frankenwald). The reason for this had been the slipping of a rock package from an embankment in spring 2017. The rock mass came to a standstill behind the guard rail. As a result, the slope was examined and assessed for its rock and boulder fall potential. In addition, the rock-strewn steep slopes above the B173 as well as all rock slopes directly at the roadside in an approx. 2.5 km long road section southwest of Schwarzenbach am Wald were investigated up to and including August 2021, which, on the basis of an orienting site inspection, apparently harbored a high hazard potential.

Following the investigation, the second phase of the project involved the execution planning and tendering of the safety measures. The planned measures include the removal of vegetation whose roots could destabilize the rock slope or tip onto the road due to lack of vitality, the clearing of individual rock objects at risk of falling, and the installation of rockfall protection fences of various energy absorption classes with a total length of approx. 340 meters. In addition, four road embankments will be netted using high-strength mesh (total net area of over 3,000 m²). Over 1,000 rock nails will be installed to secure the nets.

When work began on October 25, 2021, the B173 was closed on one side in the active construction area; for a short time, tree felling work led to a full closure of the B173. Snowfall and snow cover in December made the work increasingly difficult. After a 3.5-week winter break, the construction site is expected to restart on January 17, 2022.