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What are the best practices for geotechnical site investigation in an urban environment?

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Geotechnical site investigation is the process of collecting and analyzing information about the soil and rock conditions of a site, to support the design and construction of structures, foundations, and earthworks. It is a crucial step in any structural engineering project, especially in urban environments, where the complexity and diversity of geotechnical challenges are higher. In this article, you will learn about the best practices for geotechnical site investigation in an urban environment, covering the following aspects:

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

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1 Planning and scope

Before starting the geotechnical site investigation, you need to define the objectives, scope, and budget of the project, as well as the potential geotechnical risks and uncertainties. You also need to review the available data and records of the site, such as historical maps, aerial photographs, borehole logs, and geophysical surveys, to gain a preliminary understanding of the site conditions and identify any gaps or anomalies. Based on this information, you can plan the type, location, depth, and frequency of the field tests and samples that you need to perform, as well as the laboratory tests and analyses that you need to conduct.

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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a thorough pre-investigation phase is crucial for successful geotechnical site investigation. By defining objectives, scope, and budget, along with assessing potential risks and reviewing available data, you lay a solid foundation for planning field tests, samples, and laboratory analyses tailored to the specific site conditions. This meticulous preparation enhances the accuracy and reliability of the geotechnical assessment.

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2 Field testing and sampling

Field testing and sampling are the main methods of obtaining direct information about the soil and rock properties and behavior of the site. Depending on the project requirements and site constraints, you can use different techniques, such as drilling, coring, probing, sounding, vane testing, plate load testing, pressuremeter testing, and dilatometer testing. You also need to collect representative soil and rock samples, either disturbed or undisturbed, for further laboratory testing and examination. You should follow the relevant standards and guidelines for field testing and sampling, such as ASTM, BS, or ISO, and document the procedures, results, and observations in a clear and consistent manner.

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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field testing and sampling play a pivotal role in gathering direct information about soil and rock properties. Employing various techniques like drilling, coring, probing, and testing methods such as vane, plate load, pressuremeter, and dilatometer ensures a comprehensive understanding. Following standards like ASTM, BS, or ISO is essential for consistency, and meticulous documentation of procedures, results, and observations is critical for a robust geotechnical investigation.

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3 Laboratory testing and analysis

Laboratory testing and analysis are the methods of verifying and supplementing the field data, as well as obtaining more detailed and accurate information about the soil and rock characteristics and parameters of the site. Depending on the project needs and site conditions, you can perform different tests, such as classification, compaction, consolidation, shear strength, permeability, compressibility, swelling, shrinkage, chemical, and mineralogical tests. You should follow the appropriate standards and methods for laboratory testing and analysis, such as ASTM, BS, or ISO, and report the procedures, results, and interpretations in a comprehensive and reliable way.

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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laboratory testing and analysis serve as crucial tools to validate and enhance field data, providing detailed insights into soil and rock characteristics. Conducting tests like classification, compaction, consolidation, shear strength, permeability, and more offers a comprehensive understanding. Adhering to standards such as ASTM, BS, or ISO ensures reliability, and reporting procedures, results, and interpretations comprehensively is vital for a thorough geotechnical assessment.

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4 Geotechnical modeling and design

Geotechnical modeling and design are the methods of integrating and synthesizing the geotechnical data and information, as well as applying the relevant theories and principles, to develop a conceptual or numerical model of the site, and to design the structural elements, foundations, and earthworks that suit the site conditions and meet the project specifications. You should use the appropriate software and tools for geotechnical modeling and design, such as Plaxis, GeoStudio, or RocScience, and consider the factors that affect the geotechnical performance and behavior of the site, such as groundwater, seismicity, climate, erosion, settlement, stability, and load transfer.

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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geotechnical modeling and design involve synthesizing data and applying theories to create conceptual or numerical models. Utilizing software like Plaxis, GeoStudio, or RocScience aids in designing structural elements, foundations, and earthworks tailored to site conditions and project specifications. Considering factors like groundwater, seismicity, climate, erosion, settlement, stability, and load transfer ensures a comprehensive approach to address the geotechnical performance and behavior of the site.

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5 Quality control and assurance

Quality control and assurance are the methods of ensuring that the geotechnical site investigation is conducted in a professional and ethical manner, and that the geotechnical data and information are valid and reliable. You should implement quality control and assurance measures throughout the geotechnical site investigation process, such as checking the equipment calibration, verifying the data accuracy, reviewing the test procedures and results, auditing the reports and documents, and validating the models and designs. You should also follow the relevant codes and regulations for quality control and assurance, such as ASCE, ACI, or Eurocode, and adhere to the best practices and standards of the structural engineering profession.

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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quality control and assurance are vital for ensuring the professionalism and ethical conduct of geotechnical site investigations. Regular checks on equipment calibration, data accuracy verification, reviewing test procedures and results, auditing reports, and validating models and designs contribute to the validity and reliability of geotechnical data. Adhering to codes and regulations like ASCE, ACI, or Eurocode, along with following the best practices and standards of the structural engineering profession, further ensures the integrity of the investigation process.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Mourad Hamed ALTrawneh - MCIArb,CICCM,PMP,MPD,CBAP,MQSI,BEng,PE-JEA

Talk about Construction Contracts Management l International Commercial Management l Fidic l PMI l Bussiness Analysis l Arbitration l Bussiness Development l Construction Law l Supply Chain l PMO l Claim management
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In geotechnical engineering, communication is paramount. Clear and concise collaboration between geotechnical engineers, structural engineers, and other stakeholders is key to addressing challenges and achieving optimal outcomes in construction projects. Regular updates, transparent reporting, and proactive problem-solving contribute to the success of the overall project.

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What are the best practices for geotechnical site investigation in an urban environment?

1

2

3

4

5

6

1 Planning and scope

2 Field testing and sampling

3 Laboratory testing and analysis

4 Geotechnical modeling and design

5 Quality control and assurance

6 Here’s what else to consider

Structural Engineering

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What are the best practices for geotechnical site investigation in an urban environment?

1

2

3

4

5

6

1 Planning and scope

2 Field testing and sampling

3 Laboratory testing and analysis

4 Geotechnical modeling and design

5 Quality control and assurance

6 Here’s what else to consider

Structural Engineering

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