SKILLS PORTAL

ព្រះរាជាណាចក្រកម្ពុជា · KINGDOM OF CAMBODIA

Cambodian Skills Delivery Model

SEAL National Course Catalogue · MLVT / National Training Board

Sector Frameworks

1,164

Qualifications

15,161

Competency Units

10,938

Elements

41,782

Learning Outcomes

2,822

Assessment Packages

Analyse edaphic interactions of trees and structures

KHU-AGR-0065

Australian Equivalent

AHCARB810

Elements

Learning Outcomes

This unit of competency describes the skills and knowledge required to analyse the edaphic interactions of trees and structures through investigations into soil characteristics and effect on tree and structure stability, tree roots and interactions with structures, and their relationship resulting in potential tree and structural failure. The unit applies to individuals with highly specialised advanced theoretical and technical knowledge for professional work and research in arboriculture. They exercise advanced cognitive, technical and communication skills and demonstrate complete autonomy, judgement and adaptability in research and analysis for complex problems. No licensing, legislative or certification requirements are to this unit at the time of publication.

Elements & Learning Outcomes

E1Determine soil attributes for a specified site

0065.E1.O1Investigate angle of repose of soils and impact on structures

0065.E1.O2Investigate soil plasticity and impact on structures

0065.E1.O3Investigate the effects of soil moisture on cohesion and plasticity

0065.E1.O4Investigate modes of soil liquefaction and soil stability

0065.E1.O5Conduct tests on soil properties to establish soil stability for specified site

0065.E1.O6Assess level of soil cohesion for site

0065.E1.O7Determine shear strength of soil for site

0065.E1.O8Investigate load bearing capacity of soil for site

0065.E1.O9Determine mass of the soil plate for site

E2Determine root attributes for trees on site

0065.E2.O1Determine tree root morphology, division and distribution

0065.E2.O2Determine amount of buttressing

0065.E2.O3Determine anatomical features of tree roots for identification purposes

0065.E2.O4Identify tree roots based on anatomical features

E3Calculate forces from roots

0065.E3.O1Research, test and determine forces and pressures exerted by trees through roots in soil

0065.E3.O2Estimate and measure dimensions of roots exerting a force on structures on site

0065.E3.O3Calculate total surface area of the roots exerting a force on structures on site

0065.E3.O4Calculate force exerted by roots per unit of surface area of structure

0065.E3.O5Calculate total force exerted by roots of a given surface area

E4Determine attributes of structures

0065.E4.O1Measure and determine volume of structures impacted by roots

0065.E4.O2Research and calculate mass of structures on site

0065.E4.O3Determine the impact of gravity on structural mass

0065.E4.O4Determine effect of leverage of forces exerted by tree roots on structures

E5Define the root–soil matrix factors for root/soil breakage

0065.E5.O1Determine factors of root–soil matrix interactions

0065.E5.O2Investigate area of contact between root and soil

0065.E5.O3Investigate elasticity, tensile strength and breaking stress of roots

0065.E5.O4Investigate root cross-sectional morphology

0065.E5.O5Assess root plate for factors that may contribute to failure

0065.E5.O6Estimate impact of static and dynamic testing for root plate stability

0065.E5.O7Evaluate the likelihood of root failure by root breakage

0065.E5.O8Evaluate the likelihood of anchorage failure by soil breakage or slippage

E6Research structural engineering solutions

0065.E6.O1Investigate and assess effects of increasing mass of structure to prevent damage

0065.E6.O2Investigate and assess methods and effects of increasing the modus of rupture to prevent damage

0065.E6.O3Investigate and assess effects of use of curved structures to prevent damage

0065.E6.O4Investigate and assess effects of soil mass and friction on structure stability

0065.E6.O5Investigate and assess effects of anchors, braces and props on trees to improve stability

0065.E6.O6Compile investigations and assessments into a reference portfolio

E7Prepare stability and expert witness reports

0065.E7.O1Prepare report on potential tree damage to structure

0065.E7.O2Provide design suggestions to mitigate potential damage

0065.E7.O3Review root plate evaluation and prepare report on stability of tree

0065.E7.O4Provide design suggestions to mitigate likelihood of tree failure

0065.E7.O5Prepare final report on potential structure and tree stability

E8Communicate with project personnel

0065.E8.O1Discuss installation and protection measures with project personnel using industry-specific language

0065.E8.O2Negotiate and resolve installation and protection issues