Analysis of dynamic penetration of soils

2012 ◽  
pp. 3-13
Author(s):  
J Carter ◽  
M Nazem
Keyword(s):  
Dynamic Penetration

scholarly journals ANALISIS PERENCANAAN TEBAL PERKERASAN JALAN LENTUR PADA RUAS JALAN MAGELANG-SEMARANG

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Ria Miftakhul Jannah ◽  
Dedy Firmansyah ◽  
Ali Murtopo
Keyword(s):  
Penetration Test ◽  
Data Volume ◽  
Dynamic Penetration

<p>Pada perencanaan perkerasan jalan, tanah merupakan pondasi dasar yang sangat memegang peranan penting. Salah satu data tanah yang dibutuhkan dalam perencanaan pondasi perkerasan jalan adalah nilai CBR tanah. Nilai CBR tanah dapat diperoleh dengan melakukan Uji Dynamic Penetration Test (DCP). Penelitian ini dilakukan pada jalan Magelang-Semarang. Data sekunder berupa data CBR, peta lokasi dan curah hujan. Sedangkan data primer berupa data volume lalu lintas dan kondisi eksisting lokasi studi. Data yang diperoleh kemudian dihitung menggunakan Metode Bina Marga 1987. Dari hasil perhitungan didapat nilai lapisan permukaan diperoleh tebal 7,5 cm. Lapisan Pondasi Atas diperoleh tebal 20 cm. Lapisan Pondasi Bawah diperoleh tebal 16 cm.</p>

Discussion: The Dynamic Penetration Test: A Standard that is not Standardized

Géotechnique ◽  
1970 ◽  
Vol 20 (4) ◽  
pp. 452-456 ◽  
Author(s):  
H. O. Ireland ◽  
O. Moretto ◽  
M. Vargas
Keyword(s):  
Penetration Test ◽  
Dynamic Penetration

Field experimental investigation on filling the soda residue soil with liquid soda residue and liquid fly ash

2020 ◽  
pp. 105678952095042
Author(s):  
Xiaoyu Bai ◽  
Jiaxiao Ma ◽  
Junwei Liu ◽  
Mingyi Zhang ◽  
Nan Yan ◽  
...  
Keyword(s):  
Fly Ash ◽  
Water Content ◽  
Raw Materials ◽  
Field Tests ◽  
Dry Density ◽  
Penetration Test ◽  
Maximum Dry Density ◽  
Liquid Mixing ◽  
Optimal Mix ◽  
Dynamic Penetration

In order to reuse waste soda residue, the feasibility of utilizing liquid soda residue and liquid fly ash to prepare soda residue soil was investigated. The mechanical properties of the soda residue soil were studied and analyzed through laboratory tests and field tests. The raw materials preparation process and liquid-liquid mixing method in the field were determined, and the optimal mixing proportion of the soda residue soil was investigated by compaction test and micro penetration test. And the filling quality of the liquid-liquid mixing and solid-liquid soda residue soil was measured by micro penetration test, light dynamic penetration test, and variable energy dynamic penetration test. The test results showed that the optimal mass ratio of soda residue to fly ash is 7:3. The optimal water content and maximum dry density of the soda residue soil with the optimal mix ratio are 63.5% and 0.88 g/cm3, respectively. After 5 months of natural drying, the soda residue soil filled by liquid soda residue and liquid fly ash has higher strength and better uniformity of hardness. The water content of the soda residue soil is between 160% to 180%, and drainage consolidation is the effective method to reduce the water content and improve the strength of the soda residue soil. Compared with the method of preparing the soda residue soil by solid mixing, the method used in this experiment is simple, efficient and feasible.

Effect of Al alloy back panel on the dynamic penetration and damage characteristics of ceramic composite armors

2019 ◽  
Vol 9 (7) ◽  
pp. 723-731
Author(s):  
Weilan Liu ◽  
Zhou Chen ◽  
Tengzhou Xu ◽  
Junfeng Hu ◽  
Jiaduo Li
Keyword(s):  
Ceramic Composite ◽  
Composite Layer ◽  
Al Alloy ◽  
Ballistic Performance ◽  
Damage Characteristics ◽  
Composite Armor ◽  
Back Panel ◽  
Dynamic Penetration ◽  
Ceramic Composite Armor ◽  
Hybrid Ceramic

This paper mainly focuses on the investigation of dynamic penetration and damage characteristics of a hybrid ceramic composite armor normally impacted by 12.7 mm armor piercing incendiary projectiles. The hybrid ceramic composite armor was composed of a ceramic cylinder layer, a Ti–6Al–4V plate, an ultrahigh molecular weight polyethylene (UHMWPE) composite layer, and an Al alloy panel. Three different areal densities of composite laminates with 82, 87, and 92 kg/m2 were tested. 3D finite element model of the ceramic composite armor was generated in ABAQUS, and the simulation results were employed to study the damage evolution. The effect of alumina ceramic cylinders layer on the ballistic performance and the failure mechanisms of Ti–6Al–4V and UHMWPE after ballistic impact were examined by experimental and simulative results. According to the numerical and analytical models, an optimal thickness range of Al alloy back panel was found in minimizing areal density of the ceramic composite armor.

Sign in / Sign up

Export Citation Format

Share Document