Performance evaluation of high energy dynamic compaction on soil-rock mixture geomaterials based on field test

Wei, Yingjie; Yang, Yiqin; Wang, Jintai; Liu, Huancun; Li, Jianguang; Jie, Yuxin

doi:10.1016/j.cscm.2022.e01734

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…(Gambar 6 Proses Sand Cone test) (Pradiptiya et al, 2023) (Shafira, 2019) (Suciutami, 2021). Peningkatan pengukuran kerapatan kering diasumsikan mewakili peningkatan kekakuan dan sifat kekuatan struktural timbunan dan biasanya diukur melalui teknik pengujian titik berupa sand cone atau pengukuran kerapatan dengan nuklir yang mewakili luas 200 m2 (Wei et al, 2023) (Li et al, 2023). Dalam prosedur jaminan kualitas/kontrol kualitas (QA/QC) sebagaimana yang ditentukan dalam spesifikasi untuk pemadatan jika setelah dipadatkan memenuhi syarat lapis berikutnya dilanjutkan, namun jika kepadatan relative yang telah ditentukan tidak terpenuhi timbunan dipadatkan kembali, dan uji petik dilakukan kembali sampai persyaratan pemadatan relatif telah dipenuhi.…”

Section: Hasil Dan Pembahasanunclassified

Pemadatan Tanah Dengan Intelligent Compactor Pada Pembangunan Jalan Toll Ikn Segmen Sp. Tempadung–Jembatan P. Balang

Setiawan

2023

comserva

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Akhir-akhir ini banyak pekerjaaan pemadatan tanah dilakukan secara marginal sekedar memenuhi persyaratan untuk dapat dibayar, dikarenakan adanya percepatan pelaksanaan konstruksi yang sering terjadi pada pembangunan jalan toll. Kondisi ini mengakibatkan hasil pemadatan tidak merata bahkan tidak dapat mencapai kepadatan yang diinginkan secara merata. Hal tersebut menjadi salah satu penyebab kerusakan jalan yang diakibatkan oleh konsep perkerasan yang kurang tepat, bisa disebabkan oleh perubahan kadar air optimum dalam subgrade, tanah expansive dan atau pemadatan tanah yang tidak memenuhi kaidah teknis. Tujuan dari penelitian ini antara lain untuk mengetahui tingkat kepadatan tanah timbunan secara merata dalam skala pekerjaan dengan volume besar; juga dapat mempersingkat waktu pengujian kepadatan lapangan dengan metode dan menggunakan alat bantu IC; serta dapat meningkatkan ketebalan pemadatan; selain itu dapat meningkatkan kepadatan material perkerasan Jalan dan untuk mengurangi bea perbaikan jalan. Metode penelitian ini menggunakan Deskriptif Kualitatif. Data primer yang diambil hasil pengujian kepadatan laboratorium baik uji proctor standart maupun uji proctor modified terhadap tanah existing dan untuk data sekunder ini didapat dari instansi swasta, instansi pemerintah antara lain dapat berupa laporan penelitian, laporan sensus, peta dan foto. Belajar dari negara negara maju seperti Amerika, China, Singapura, Jepang dan banyak negara lainnya pada dasarnya semua sama dimana para Engineer diminta untuk segera menyelesaikan pekerjaannya dengan mutu yang baik. Salah satunya adalah metode kerja yang mengkombinasikan peralatan peralatan non disturb atau semi otomatis yang dapat mengontrol kualitas sedini mungkin. Yaitu salah satunya dalam hal pekerjaan pemadatan dengan menggunakan Inteligent Compaction (IC).

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Section: Hasil Dan Pembahasanunclassified

Pemadatan Tanah Dengan Intelligent Compactor Pada Pembangunan Jalan Toll Ikn Segmen Sp. Tempadung–Jembatan P. Balang

Setiawan

2023

comserva

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“…From Eq (3), the peak shear stress τ m1 = a 1 can be derived, while the initial shear stiffness K s1 = a 1 �b 1 can be derived from Eq (4).…”

Section: Plos Onementioning

confidence: 99%

“…Through compaction and in-situ direct shear tests, Zhang et al [ 3 ] discovered that the presence of rock blocks enhanced the deformation modulus and internal friction angle of soil-rock mixture compared to that of soil samples, albeit at the cost of reduced cohesion. Wei et al [ 4 ] evaluated the high-energy dynamic compaction performance of soil-rock mixture based on field testing. Beyond the field tests, studies have also focused on physical and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Study of shear properties and shear model of soil-rock mixture

Du,

Tao,

et al. 2023

PLoS ONE

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This study investigates the shear characteristics of soil-rock mixtures, a critical factor influencing slope stability in engineering construction. Soil-rock mixtures, often exhibit poor integrity and can easily soften in water due to geological influences. The YT1200 direct shear drawing friction system was employed to conduct shear tests, analyzing the effect of varying water content and fine particle mass fraction under different normal stresses. Utilizing fractional derivatives, we formulated a fractional derivative shear model. Test results illustrated a softening phenomenon post achieving peak shear stress in the soil-rock mixture. It was found that peak shear stress is directly proportional to the normal stress, and inversely proportional to both water content and fine particle mass fraction. Additionally, the cohesion and internal friction angle decrease according to a power function with increasing water content, and non-linearly decrease with the rise of fine particle mass fraction. The proposed shear model aptly simulates the entire shear failure process of the soil-rock mixture, effectively analyzing the influence of key factors on shear characteristics. These findings contribute to the strength prediction and numerical simulation of soil-rock mixtures, thereby aiding in the design of reinforcement schemes and slope stability analysis.

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“…In terms of evaluating the reinforcement performance, Wang et al [21] developed a method for estimating the deformation performance of granular soil induced by DC by investigating the factors influencing ground deformation. Wei et al [22] evaluated the reinforcement performance of high energy DC. Yao et al [23] proposed a scheme for predicting soil behavior after compaction by considering factors such as ramming energy, times, spacing between tamping points, and compaction sequence during multi-point compaction.…”

Section: Introductionmentioning

confidence: 99%

Field Testing and Numerical Simulation of the Effectiveness of Trench Isolation for Reducing Vibration Due to Dynamic Compaction

Zheng,

Lan,

Pan

et al. 2023

Applied Sciences

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Dynamic compaction is a widely used method to strengthen the foundation, which can cause significant impacts on surrounding structures, making vibration control measures necessary. This study investigates the effectiveness of isolation trenches in reducing ground vibration caused by dynamic compaction in a typical multi-layered alluvial soil foundation adjacent to the Yangtze River. A combination of field testing and numerical simulation was employed to evaluate the vibration isolation effect of trenches at different depths and locations. The results show that trenches have a significant vibration isolation effect on the side away from the tamping point, but they can have an amplifying effect between the trench and tamping point. The effectiveness of the isolation trenches increases with deeper trenches and distance from the tamping point, but the amplification effect decreases with increasing depth. Therefore, when employing trenches, reinforcement measures must be adopted, and a suitable trench depth should be selected. The closer the isolation trench to the dike, the better the protection will be. The study provides effective guidance for designing isolation trenches in similar dynamic compaction processes, emphasizing the importance of considering spatial attenuation characteristics and selecting appropriate trench depths and locations.

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Performance evaluation of high energy dynamic compaction on soil-rock mixture geomaterials based on field test

Cited by 6 publications

References 34 publications

Pemadatan Tanah Dengan Intelligent Compactor Pada Pembangunan Jalan Toll Ikn Segmen Sp. Tempadung–Jembatan P. Balang

Pemadatan Tanah Dengan Intelligent Compactor Pada Pembangunan Jalan Toll Ikn Segmen Sp. Tempadung–Jembatan P. Balang

Study of shear properties and shear model of soil-rock mixture

Field Testing and Numerical Simulation of the Effectiveness of Trench Isolation for Reducing Vibration Due to Dynamic Compaction

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