Soil Improvement and Inspection Techniques for the Base Course of Rigid Pavement for an Airport Runway

2021 ◽  
Vol 35 (2) ◽  
pp. 06021001
Author(s):  
Shiun-Jye Lin ◽  
Tai-Yi Liu ◽  
Nelson N.S. Chou ◽  
Po-Han Chen ◽  
Ching-Lung Liao
Keyword(s):  
Soil Improvement ◽  
Rigid Pavement ◽  
Base Course ◽  
Airport Runway ◽  
Inspection Techniques

Improving airport runway rigid pavement design using influence surfaces

2021 ◽  
Vol 284 ◽  
pp. 122702
Author(s):  
Yu Tian ◽  
Peng Xiang ◽  
Shifu Liu ◽  
Jianming Ling ◽  
Rui Tang
Keyword(s):  
Pavement Design ◽  
Rigid Pavement ◽  
Airport Runway

scholarly journals Perkerasan Kaku (Rigid Pavement) Pada Ruas Jalan Posing Kabupaten Murung Raya

2018 ◽  
Vol 1 (2) ◽  
pp. 56-61
Author(s):  
BOBIE BOBIE
Keyword(s):  
Rigid Pavement ◽  
Base Course

Jalan Posing merupakan jalan baru hanya dilapisi Lapisan Pondasi Bawah (sub base course) dan subgrade yang berpori rentan tergenang air hujan sehingga beban kendaraan berat yang sering melewati jalan Posing mengakibatkan terciptanya kubangan lumpur kerusakan parah dan sampai terputusnya akses lalu lintas. Kasus tersebut mendorong Pemerintah Daerah untuk segera mengalokasikan anggaran pembiayaan Proyek “Peningkatan Jalan Posing” melalui perencanaan yang dilakukan berusaha untuk mengatasi dampak kerusakan yang terjadi pada jalan tersebut, yaitu dengan Perencanaan Jalan Beton (Rigid pavement). Dari hitungan yang telah dilakukan diperoleh lapisan perkerasan beton dengan tebal 250 mm dan penulangan tepi arah melintang sebesar D 8 – 100 mm serta penulangan untuk arah memanjang diperoleh sebesar D 8 – 100 mm.Kata kunci : Kerusakan Jalan, Jalan Beton (Rigid Pavement), Penulangan Tepi, Sambungan Memanjang

Evaluation of the structural capacity of rigid pavements at the network level

2019 ◽  
Vol 46 (5) ◽  
pp. 439-447
Author(s):  
M. Saleh ◽  
J.D. van der Walt
Keyword(s):  
Evaluation Method ◽  
Structural Condition ◽  
Rigid Pavement ◽  
Structural Capacity ◽  
Overall Evaluation ◽  
Actual Field ◽  
Pavement Structure ◽  
Base Course ◽  
And Performance ◽  
Falling Weight

Pavement surface deflection has been used by researchers and highway agencies to assess the structural condition of the pavement structure. None of the currently available approaches provides an acceptable evaluation method for the rigid pavement structural capacity at the network level. In this research, pavement structural ratio (PSR) and overall pavement structural index (OPSI) were derived from deflection bowls generated from finite element simulations and validated by actual field deflection data measured by falling weight deflectometer and performance data extracted from long-term pavement performance database. The PSR parameter provides structural evaluation of the rigid pavement slab and the base course above the subgrade only. Whereas, OPSI parameter provides an overall evaluation of the pavement structure and the subgrade.

Several Related Factors on Highway Nondestructive Testing

2012 ◽  
Vol 594-597 ◽  
pp. 1363-1366
Author(s):  
Shui Ming He
Keyword(s):  
Nondestructive Testing ◽  
Ground Penetrating Radar ◽  
Related Factors ◽  
Rigid Pavement ◽  
Highway Engineering ◽  
The Road ◽  
Quality Detection ◽  
Testing Technology ◽  
Base Course ◽  
Ground Penetrating

Highway engineering quality is the lifeline of highway. Ground-penetrating radar is a new nondestructive testing technology of the road quality detection. This thesis takes advantage of ground-penetrating radar to analyze and discuss several related factors on highway nondestructive testing, for instance, the water content and compact degree of the base course, identification of cavity beneath the rigid pavement, and the differential settlement of the base course beneath the flexible pavement. Results of this research provide an excellent detection method for engineers and technicians.

A Study on the Change Law of Fundamental Frequency of Rigid Pavement

2013 ◽  
Vol 790 ◽  
pp. 324-328
Author(s):  
Xian Min Zhang ◽  
Hua Xin Xue ◽  
Qian Dong ◽  
Zhi Chao Sun
Keyword(s):  
Mechanical Property ◽  
Fundamental Frequency ◽  
Element Model ◽  
Ansys Software ◽  
Rigid Pavement ◽  
Structural Mechanical Property ◽  
Two Factors ◽  
Base Course ◽  
Different Thickness ◽  
Main Influence

The fundamental frequency is the inherent attribute that describes the structural mechanical property of rigid pavement. A finite element model of 45 m x 15 m x 11 m is given by means of the ANSYS software. With the method of modal analysis, the pavements structure was analyzed with 8 different thickness of surface course, 6 kinds of modulus of surface course, 5 different thickness of base course, 5 kinds of modulus of base course, 5 different thickness of subgrade and 8 kinds of modulus of subgrade, and correspondingly, the fundamental frequency was calculated . The results show that thickness and modulus of surface course, thickness and modulus of base course have less effect on fundamental frequency, which decreases with increase of modulus of subgrade, but increases linearly with the growth of thickness of subgrade, these two factors have the main influence to the fundamental frequency. The research provides the theory basis and reference to the detection of the pavement in airports.

scholarly journals Ways to Minimize Volume (Weight) and Increase the Bearing Capacity of Rigid Pavement

2019 ◽  
Vol 5 (11) ◽  
pp. 2495-2501 ◽  
Author(s):  
Alexander Kolesnikov ◽  
Tatiana Tolmacheva
Keyword(s):  
Elastic Foundation ◽  
Critical Force ◽  
Layer Model ◽  
Force Coefficient ◽  
Rigid Pavement ◽  
Road Pavement ◽  
Volume Weight ◽  
The Subject ◽  
Two Layer Model ◽  
Base Course

The objective of research is finding of a possibility economy of rigid pavement weight and volume of material. The subject of the research is a mathematical model of rigid pavement in the form of a multilayer structure on an elastic foundation. The method of a research consists in modeling the behavior of rigid pavement in the form of a set of equations. These equations reflect the change in the stress-strain state of such structures. The system of equations takes into account the geometric nonlinearity of the work of materials and makes it possible to investigate the influence of various parameters on the values of stresses and displacements. Critical force coefficient and stress of shells are calculated by Bubnov-Galerkin. The formation way of the elastic foundation allows modeling the spreading layers with various characteristics. Use of two-layer model allows considering of a surface course and base course of road pavement designing (for example concrete and crushed stone). The graphs show the patterns of change of the stress of rigid pavement when changing the characteristics. The form of rigid pavement allowing to maintain big loadings is exposed to improvement. Findings shows the possibility of optimizing the geometric parameters of the design and achieving the savings in weight and volume of the consumable material. 

scholarly journals TESTING OF SOIL IMPROVEMENT BELOW A HALL FLOOR

2017 ◽  
Vol 10 ◽  
pp. 52
Author(s):  
Monika Súlovská ◽  
Peter Turček ◽  
Zuzana Štefunková
Keyword(s):  
Static Load ◽  
Weather Conditions ◽  
Soil Improvement ◽  
Construction Work ◽  
North West ◽  
Load Tests ◽  
Base Course ◽  
Required Quality

Construction of a hall situated in North-West Slovakia was prepared in winter. After finishing an elementary ground adaptation in February there were extreme weather conditions: the precipitation exceeded by over 300 % the normal long term measured amount. This indisposition of climate led to a stopping of the construction work. Checks on the required quality of the base course using static load tests showed a failure in performance of compaction. The sampling and laboratory testing of the original and the improved soils are discussed in the paper.

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