NR Engineering Consultants Pty Ltd

Structural Consulting Services

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NR Engineering Consultants specializes in providing Structural consulting services for residential, commercial and infrastructure developments.

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Our structural engineering services include:

Finite element modelling Structural steel

Shoring and underpinning Piling design

Post-tensioning design

Reinforced concrete design Timber structure design Temporary works design Formwork design and inspections

Tilt-up precast concrete panel construction Propping design for tilt-up panels

Vibration control of wind-sensitive tall buildings

Dilapidation surveys of properties and structures prior to development on neighbouring properties. These are increasingly requested by Councils to be done by geotechnical and or structural engineers to ensure the integrity and independence of the surveys.

Civil Engineering Services

NR Engineering Consultants specializes in providing Civil Engineering services for residential, commercial and infrastructure developments.

​Our tailored civil engineering services include:

Preparation of DA, CC & CDC design compliance documentation Hydraulic and hydrologic assessment

Storm-water management plans for council compliance

Detention & retention basin design and analysis (OSD) DRAINS & MUSIC modelling

Roads and pavement design

Public domain works

Flood modelling & overland flow studies

Acid Sulfate Soil Remediation & Management

​Acid Sulphate Soils (ASS) are typically situated in wet, anaerobic (low oxygen or ‘reducing’) environments and are present along much of the NSW coast and within inland river or swamp systems.

​ASS can become disturbed during excavation and broad-scale drainage works or as a result of groundwater dewatering. These activities expose the sulfide minerals to air, which cause oxidation of the sulphide minerals, leading to the formation of sulfuric acid.

ASS occur all around the country (as shown below for a part of Northern Beaches, Sydney) and if left unmanaged the sulfide oxidation process can make the groundwater acidic, causing naturally-occurring heavy metals (such as iron, aluminium, arsenic and copper), to be leached from the soil and transported to surface water bodies.
This can lead to adverse impacts on vegetation, aquatic organisms (including ‘fish kills’), as well as causing damage to steel and concrete structures (corrosion) such as pipes, culverts, bridge piers or retaining walls.

NR Engineering Consultants provides the following acid sulfate soils services:

Field assessment of potential and actual acid sulfate soils (PASS and AASS);

Advice on the handling, treatment and disposal of acid sulfate spoil (excavated ASS materials);

Assessment and management of water quality impacts;

Management of areas affected by acid sulfate soils, including remediation of impacted sites; and

Development of Acid Sulfate Soil Management Plan (ASSMP).

Geological and Engineering Geological Mapping
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Geologic mapping is defined as the examination of natural and manmade exposures of rock or unconsolidated materials, the systematic recording of geologic data from these exposures, and the analysis and interpretation of these data in two- or three-dimensional format (maps, cross sections, and perspective [block] diagrams). The maps and cross sections generated from these data:

​Serve as a record of the location of factual data;

Present a graphic picture of the conceptual model of the study area based on the available factual data; and

Serve as tools for solving three-dimensional problems related to the design, construction, and/or maintenance of engineered structures or site characterization.

NR Engineering Consultants’ highly experienced engineering geologists are well versed in collection and documentation of surface and subsurface geologic field data for use in the design, specifications, construction, or maintenance of engineered structures and site characterization studies. We provide the following engineering geological services:

Define, evaluate, and document site-specific geologic conditions relating to the design, construction, maintenance, and remediation of engineered structures or other sites.

Carry out regionally based geologic studies, such as materials investigations or regional reconnaissance mapping.

As an engineering geologist, we realize that geologic mapping for site characterization is a dynamic process of gathering, evaluating, and revising geologic data and that the significance of these data, both to the structure and to further exploration, must be continually assessed. An engineering geologist engaged in geologic mapping is responsible for:

​Recognizing the key geologic conditions in a study area that will or could significantly affect hazardous and toxic waste sites or a proposed or existing structure;

Integrating all the available, pertinent geologic data into a rational, interpretive, three-dimensional conceptual model of the study area and presenting this conceptual model to design and construction engineers, other geologists, hydrologists, site managers, and contractors in a form that can be understood.

The key to understanding the site geology is through interpretive geologic drawings such as geologic maps, cross sections, isopachs, and contour maps of surfaces. These working drawings, periodically revised and re-interpreted as new data become available, are continuously used to assess the effects of the site geology and to delineate areas where additional exploration is needed. These drawings are used in designs, specifications, and modeling and maintained in the technical record of the project.