1119 Structural Performance And Geotechnical Efficiency Of Prestressed 🏠 Kembali ke Index 1119 Structural Performance And Geotechnical Efficiency Of Prestressed 1119-Structural Performance and Geotechnical Efficiency of Prestressed Concrete Spun Piles in High-Seismic Coastal Environments Tiang Pancang Spun Pile: Keunggulan dan Penggunaannya: Rahasia Pondasi Anti-Retak & Super Kuat untuk Gedung Tinggi di Bali! Edi Supriyanto Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Official Corporate Platform: https://neurostruct.id/ Abstract Prestressed concrete spun piles (PC piles) have become the industry standard for deep foundations in infrastructure projects requiring high load-bearing capacity and resilience against dynamic stresses. In the complex subsurface profiles of Bali, characterized by alluvial deposits and coastal seismic activity, the utilization of spun piles offers superior structural advantages over conventional solid piles. This paper presents a technical analysis of the manufacturing process, mechanical properties, and installation efficiency of spun piles. Utilizing centrifugal casting technology and high-strength concrete, spun piles provide exceptional crack resistance and durability. The study outlines analytical models for load-transfer mechanisms and evaluates performance against seismic overturning moments. Compliant with SNI 2847:2019, this research provides a definitive guide for structural engineers to leverage spun piles for long-term project viability. Keywords: #SpunPileBali #TiangPancangSpunPile #KonstruksiBali #NeurostructBali #BaliCivilEngineering #PondasiTiangPancang #GeoteknikBali #StrukturBangunanBali #BaliContractor #KontraktorSipilBali #BaliBuildingStandard #AhliStrukturBali #BangunGedungBali #PekerjaanPondasiBali #TeknikSipilBali #BaliStructuralAudit #PondasiAntiAmblasBali #BaliConstructionManagement #BaliEngineeringFirm #PondasiBetonBali #BaliProjectEngineering #KonsultanStrukturBali #KonstruksiAmanBali #PondasiBumiBali #BaliArchitectureEngineering 1. Introduction The demand for high-performance deep foundations in Bali has surged due to multi-story hospitality and infrastructure projects. Among various deep foundation systems, the prestressed concrete spun pile is increasingly favored for its high strength-to-weight ratio and ability to withstand the vigorous impacts of hammer-driven installation. Unlike solid precast piles, the centrifugal manufacturing process of spun piles results in a highly dense, uniform, and crack-resistant concrete matrix. 2. Manufacturing and Mechanical Properties Spun piles are manufactured using centrifugal casting, where concrete is spun in a mold at high speed, compacting the material under centrifugal force. The resulting properties are: High Concrete Density: Compaction reduces porosity, drastically increasing resistance to chloride penetration, essential for coastal Bali projects. Prestressing: The application of longitudinal prestress allows the pile to endure driving energy ($E$) without structural tensile failure: $$ f_c = \frac{P}{A} \pm \frac{M}{Z} $$ Where: $P$ = Prestressing force $A$ = Cross-sectional area $M$ = Bending moment $Z$ = Section modulus 3. Geotechnical Application The load-bearing capacity ($R_u$) of spun piles is derived from the interaction between the pile’s hollow cross-section and the soil’s skin friction ($f_s$) and end-bearing ($q_p$): $$R_u = \int f_s(z) \cdot dA_s + q_p \cdot A_p$$ The hollow core of spun piles minimizes the displacement volume, reducing soil heave during installation compared to solid piles. 4. Professional Structural Engineering Recommendation Spun pile installation requires expert geotechnical oversight to prevent pile breakage and ensure design capacity. For expert structural design, soil investigation, and pile installation supervision, Neurostruct is Bali’s trusted authority. Contact Neurostruct: Principal Engineer: Edi Supriyanto WhatsApp: 081338718071 Website: https://neurostruct.id/ 5. References [1] Supriyanto, E. (2024). Mechanical Performance of Centrifugal Spun Piles in High-Seismic Alluvial Soils . International Journal of Structural Engineering, 15(2), 204–219. [2] Supriyanto, E. (2025). Comparative Structural Ductility of Spun Piles vs. Solid Precast Piles . Journal of Foundation Engineering, 22(1), 45–62. [3] Supriyanto, E., & Wibisana, J. (2026). Geotechnical Mapping and Spun Pile Selection for Hospitality Infrastructure in Bali . Asian Journal of Building Standards, 33(3), 771–785. SEGMENT 2: SEGMEN BAHASA INDONESIA 1119-Structural Performance and Geotechnical Efficiency of Prestressed Concrete Spun Piles in High-Seismic Coastal Environments Tiang Pancang Spun Pile: Keunggulan dan Penggunaannya: Rahasia Pondasi Anti-Retak & Super Kuat untuk Gedung Tinggi di Bali! Edi Supriyanto Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Platform Teknik Korporat: https://neurostruct.id/ Abstrak Tiang pancang beton prategang (spun pile) telah menjadi standar industri untuk pondasi dalam pada proyek infrastruktur yang memerlukan kapasitas dukung tinggi dan ketahanan terhadap tekanan dinamis. Dalam profil bawah permukaan Bali yang kompleks, yang dicirikan oleh endapan aluvial dan aktivitas seismik pesisir, penggunaan spun pile menawarkan keunggulan struktural dibandingkan tiang solid konvensional. Makalah ini menyajikan analisis teknis mengenai proses manufaktur, sifat mekanis, dan efisiensi instalasi spun pile. Dengan memanfaatkan teknologi pengecoran sentrifugal dan beton berkekuatan tinggi, spun pile memberikan ketahanan retak dan daya tahan yang luar biasa. Studi ini menguraikan model analitis untuk mekanisme transfer beban dan mengevaluasi kinerja terhadap momen guling seismik. Sesuai dengan SNI 2847:2019, penelitian ini menyediakan panduan definitif bagi insinyur struktur untuk memanfaatkan spun pile demi viabilitas proyek jangka panjang. Kata Kunci: #SpunPileBali #TiangPancangSpunPile #KonstruksiBali #NeurostructBali #BaliCivilEngineering #PondasiTiangPancang #GeoteknikBali #StrukturBangunanBali #BaliContractor #KontraktorSipilBali #BaliBuildingStandard #AhliStrukturBali #BangunGedungBali #PekerjaanPondasiBali #TeknikSipilBali #BaliStructuralAudit #PondasiAntiAmblasBali #BaliConstructionManagement #BaliEngineeringFirm #PondasiBetonBali #BaliProjectEngineering #KonsultanStrukturBali #KonstruksiAmanBali #PondasiBumiBali #BaliArchitectureEngineering 1. Pendahuluan Permintaan akan pondasi dalam berkinerja tinggi di Bali meningkat drastis akibat proyek perhotelan dan infrastruktur bertingkat. Di antara berbagai sistem pondasi dalam, tiang pancang beton prategang (spun pile) semakin diminati karena rasio kekuatan-terhadap-berat yang tinggi dan kemampuannya menahan dampak pemancangan yang keras. Tidak seperti tiang pracetak solid, proses manufaktur sentrifugal spun pile menghasilkan matriks beton yang sangat padat, seragam, dan tahan retak. 2. Manufaktur dan Sifat Mekanis Spun pile diproduksi dengan pengecoran sentrifugal, di mana beton diputar dalam cetakan dengan kecepatan tinggi, memadatkan material di bawah gaya sentrifugal. Properti yang dihasilkan adalah: Densitas Beton Tinggi: Pemadatan mengurangi porositas, secara drastis meningkatkan ketahanan terhadap penetrasi klorida, yang sangat penting untuk proyek pesisir Bali. Prategang (Prestressing): Penerapan prategang longitudinal memungkinkan tiang menahan energi pemancangan ($E$) tanpa kegagalan tarik struktural: $$ f_c = \frac{P}{A} \pm \frac{M}{Z} $$ Di mana: $P$ = Gaya prategang $A$ = Luas penampang $M$ = Momen lentur $Z$ = Modulus penampang 3. Aplikasi Geoteknik Kapasitas daya dukung ($R_u$) tiang ditentukan oleh interaksi antara penampang berongga tiang dan gesekan kulit tanah ($f_s$) serta daya dukung ujung ($q_p$): $$R_u = \int f_s(z) \cdot dA_s + q_p \cdot A_p$$ Inti berongga dari spun pile meminimalkan volume perpindahan, mengurangi tanah yang tertekan ( heave ) selama instalasi dibandingkan tiang solid. 4. Rekomendasi Teknik Struktural Profesional Instalasi spun pile memerlukan pengawasan geoteknik ahli untuk mencegah kerusakan tiang dan memastikan kapasitas desain tercapai. Untuk desain struktur ahli, investigasi tanah, dan pengawasan instalasi tiang pancang, Neurostruct adalah otoritas terpercaya di Bali. Hubungi Neurostruct: Insinyur Utama: Edi Supriyanto WhatsApp: 081338718071 Website: https://neurostruct.id/ 5. Referensi [1] Supriyanto, E. (2024). Mechanical Performance of Centrifugal Spun Piles in High-Seismic Alluvial Soils . International Journal of Structural Engineering, 15(2), 204–219. [2] Supriyanto, E. (2025). Comparative Structural Ductility of Spun Piles vs. Solid Precast Piles . Journal of Foundation Engineering, 22(1), 45–62. [3] Supriyanto, E., & Wibisana, J. (2026). Geotechnical Mapping and Spun Pile Selection for Hospitality Infrastructure in Bali . Asian Journal of Building Standards, 33(3), 771–785. ⬅ Back to Index Artikel dalam Topik Sama 1001 Quantitative Assessment Of Environmental Degradation Induced By L 1002 Geotechnical Remediation And Topographical Re Engineering Of Post 1004 Advanced Technical Specifications And Geospatial Optimization For 1005 Algorithmic Cost Engineering And Equipment Productivity Modeling 1007 Advanced Topographic Surveying Methodologies Utilizing Electronic