<p>This paper presents a comprehensive study on construction techniques, quality control protocols, and performance validation methods for rock-fill embankments in airfield pavement applications. The research emphasizes monitoring critical parameters to ensure structural integrity and long-term performance. Control strips were constructed to determine field density using the water replacement method across varying roller passes, leading to the development of density versus roller pass curves and reference densities. Advanced testing methods, including Falling Weight Deflectometer (FWD), Plate Load Tests, Zone Load Tests, and Multi-Channel Analysis of Surface Waves (MASW), were employed to validate compaction quality and assess fill homogeneity. Correlations among these methods were analyzed to establish consistency and reliability. Performance-based specifications were formulated, and instrumentation such as settlement markers and piezometers was installed to monitor long-term behavior. Key findings indicate that laboratory methods like the Modified Proctor test are unsuitable for coarse rock-fill materials; instead, field density plots derived from trial stretches provide accurate compaction benchmarks. FWD testing demonstrated strong correlation with strain modulus values (Ev₂′), offering a practical solution for large-scale verification. MASW proved effective for post-construction assessment by detecting anomalies through shear wave velocity profiling, while Zone Load Tests provided more representative bearing capacity evaluations than conventional plate load tests. The study establishes a structured, performance-based approach integrating conventional and advanced techniques, thereby enhancing quality assurance and optimizing construction standards for critical infrastructure projects.</p>

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Rockfill embankment construction and testing methods for airfield pavement

  • Ramalingeswara Rao Akasapu,
  • Chanderbhan Manwani,
  • Vinod Rao

摘要

This paper presents a comprehensive study on construction techniques, quality control protocols, and performance validation methods for rock-fill embankments in airfield pavement applications. The research emphasizes monitoring critical parameters to ensure structural integrity and long-term performance. Control strips were constructed to determine field density using the water replacement method across varying roller passes, leading to the development of density versus roller pass curves and reference densities. Advanced testing methods, including Falling Weight Deflectometer (FWD), Plate Load Tests, Zone Load Tests, and Multi-Channel Analysis of Surface Waves (MASW), were employed to validate compaction quality and assess fill homogeneity. Correlations among these methods were analyzed to establish consistency and reliability. Performance-based specifications were formulated, and instrumentation such as settlement markers and piezometers was installed to monitor long-term behavior. Key findings indicate that laboratory methods like the Modified Proctor test are unsuitable for coarse rock-fill materials; instead, field density plots derived from trial stretches provide accurate compaction benchmarks. FWD testing demonstrated strong correlation with strain modulus values (Ev₂′), offering a practical solution for large-scale verification. MASW proved effective for post-construction assessment by detecting anomalies through shear wave velocity profiling, while Zone Load Tests provided more representative bearing capacity evaluations than conventional plate load tests. The study establishes a structured, performance-based approach integrating conventional and advanced techniques, thereby enhancing quality assurance and optimizing construction standards for critical infrastructure projects.