跳至主要内容

Diagnosis Study of the Louga-Ouarack-Ndoyene R31 Regional Road (Senegal)

Read  full  paper  at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53341#.VL3KqyzQrzE

ABSTRACT
The degree of structural damage of the Louga-Ouarack-Ndoyene R31 regional road was surveyed using Lacroix deflectographe and geotechnical testing, in order to recommend possible rehabilitation measures aimed at maintaining the high level of service over the projected life span of the road. The data processing and interpretation were essentially based on the French standards and specifications, through which synthetic variables were generated with a qualitative significance and on the basis of which the extent of repairs and rehabilitation works to be undertaken were suggested. The decision grid thus produced, revealed road structure quality indices of mostly Q3, Q4, and Q5 types for a segment length of 36.954 km (equivalent to some 69.44% of the total road section), which justifies some major reinforcement works. The remaining part of the road section (nearly 30.56% with road quality indices ≤ Q2) is still in acceptable condition, requiring only some minor maintenance works. The rehabilitation costs were estimated to be of the order of 5,352,000,000 (five billion three hundred fifty-two million) CFA francs, based on local market price conditions.
 
Cite this paper
Diop, S. , Fall, M. , Dione, A. and Tijani, M. (2015) Diagnosis Study of the Louga-Ouarack-Ndoyene R31 Regional Road (Senegal). Geomaterials, 5, 34-44. doi: 10.4236/gm.2015.51004.
 
References
[1]Norm NF P 94-056 (1995) Grain Size Distribution.
 
[2]Norm NF P 11-300 (1992) GTR Sols Classification.
 
[3]Norm NF P 94-051 et 052 (1993) Oedometer Methods (Atterberg Limits).
 
[4]Norm NF P 94-068 (1998) Methylene Blue Test.
 
[5]Norm NF P 94-078 (1997) CBR Test.
 
[6]Norm NF P 94-093 (1997) Modified Proctor Test.
 
[7]Norm NF P 94-050 (1995) Water Content.
 
[8]Centre Experimental de Recherches et d’Etudes du Batiment et des Travaux Publics CEBTP (1980) Guide pratique de dimensionnement des chaussées pour les pays tropicaux. Ministère de la coopération de la république Fran?aise, Paris, 155 p.
 
[9]Centre Experimental de Recherches et d’Etudes du Batiment et des Travaux Publics CEBTP (1984) Guide pratique de dimensionnement des chaussées pour les pays tropicaux. Ministère des relations extérieures—Coopération et développement de la république Fran?aise, Paris, 157 p.
 
[10]Centre Experimental de Recherches et d’Etudes du Batiment et des Travaux Publics CEBTP (1985) Manuel pour le renforcement des chaussées souples en pays tropicaux. Ministère de la Coopération de la république fran?aise, France, 166 p.
 
[11]Laboratoire Central des Ponts et Chaussées LCPC (1997) Etudes routières: Déformabilité de surface des chaussées. Exécution et exploitation des mesures.Méthode d’essai LPC No. 39, Paris, 71 p.
 
[12]Centre de Recherches Routières (CRR) (1992) Code de bonne pratique pour le renforcement des chaussées souples à l’aide de materiaux bitumineux. CRR R56/85, Groupe de travail Dimensionnement des chaussées, D/1992/0690/1, Bruxelles, 75 p.
 
[13]Centre d’Etudes sur les Réseaux, les Transports, l’Urbanisme et les Constructions CERTU (2005) Matériels et méthodes d’auscultation des chaussées urbaines, hors collection. CERTU 2005/6, Lyon, 66 p.
 
[14]Wurkler, S. (2010) Développement de techniques d’auscultation de chaussées. Projet de Fin d’Etudes, INSA de Strasbourg, Génie Civil Option ATE, 63 p.
http://eprints2.insa-strasbourg.fr/634/1/Rapport_PFE.pdf
 
[15]Nkembo, P.M.E. (2013) Mesures des deflections d’une chaussee avec le deflectographe Lacroix: Cas de route regionale R31 Louga-Ouarack-Ndoyene. Memoire IST No. 274, Faculte des Sciences et Techniques, universite Cheikh Anta Diop de Dakar, Dakar, 50 p.
 
[16]Millien, A., Petit, C. and Takarli, M. (2009) Rapport diagnostic de chaussée du CD36. Convention entre la Plateforme Travaux Public du Limousin et le Conseil de la Corrèze, Université de Limoges, 14 p. http://www.pft-travauxpublics-limousin.com/files/annexe6.pdf
 
[17]Henia, M.O. and Braber, R. (2008) Falling Weight Deflectometer et Déflectographe Lacroix: Comparaison, Domaine d’Application et Perspectives. Suisse, 6 p.
http://www.infralab.ch/wp-content/uploads/2013/12/Article-RT-Comparaison-HWD-et-Lacroix.pdf
 
[18]Association Francaise de Normalisation AFNOR (1991) Norme NF P 98-200-1—Essais relatifs aux chaussées. Mesure de la déflexion engendrée par une charge roulante. Partie 1: Définitions, moyens de mesure, valeurs caractéristiques. 1991/7, Paris, 6 p.
 
[19]Association Francaise de Normalisation AFNOR (1993) Norme NF P 98-200-3—Essais relatifs aux chaussées. Mesure de la déflexion engendrée par une charge roulante. Partie 3: Détermination de la déflexion avec le déflectographe 02. 1993/9, Paris, 6 p.
 
[20]Andrén, P. (2006) Development and Results of the Swedish Road Deflection Tester. Licentiate Thesis from Royal Institute of Technology Department of Mechanics, Stockholm, 95 p. http://www.diva-portal.org/smash/get/diva2:10556/FULLTEXT01.pdf http://www.peterandren.se/licrep/licrep_eng.php#x1-90001.4
 
[21]APAVE Sahel (2012) Organisation et exécution d’une campagne d’inspections sommaires sur le réseau routier classé (Routes revêtues de toutes les régions du Sénégal). Rapport Interne, Dakar, 88 p.
 
[22]Laboratoire Central des Ponts et Chaussées (1991) VIZIR: Méthode assistée par ordinateur pour l’estimation des besoins en entretien d’un réseau routier. LPCP, Paris, 63 p.                                      eww150120lx
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文