American Journal of Civil Engineering

Volume 5, Issue 4, July 2017

  • Stabilitation Research of the Tunnel Anchorage of Dadu River Bridge in Luding in Yaan to Kangding Expressway

    Wen Lina, Cheng Qiangong, Cheng Qiang, Guo Xifeng

    Issue: Volume 5, Issue 4, July 2017
    Pages: 196-204
    Received: 12 June 2017
    Published: 14 June 2017
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    Abstract: Based on features of indoor rock mechanics test, the in situ test and rock mass classification result, through established numerical analysis model of the tunnel anchor model drawing test, using the model observed values of surrounding rock deformation, using intelligent inversion method to inverting the displacement creep and mechanical parameters... Show More
  • Structural Evaluation of the Effect of Pulverized Palm Kernel Shell (PPKS) on Cement-Modified Lateritic Soil Sample

    Olutaiwo Adewale, Ajisafe Segun, Adanikin Ariyo

    Issue: Volume 5, Issue 4, July 2017
    Pages: 205-211
    Received: 20 April 2017
    Accepted: 2 May 2017
    Published: 19 June 2017
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    Abstract: There have been global efforts to reduce environmental pollution of agricultural and industrial waste products by utilizing such wastes as stabilizing agents to improve soils for various uses, especially road construction. In this research, lateritic soil sample obtained from a borrow pit was tested with varying percentages of Pulverized Palm Kerne... Show More
  • Comparative Study of Labor-Based Method and Machine-Based Method at Rural Road Construction and Maintenance in Jimma Zone, Oromia Region, Ethiopia

    Anwar Kassahun Dunffa, Emer Tucay Quezon, Elmer De Castro Agon

    Issue: Volume 5, Issue 4, July 2017
    Pages: 212-219
    Received: 11 April 2017
    Accepted: 20 April 2017
    Published: 21 June 2017
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    Abstract: The construction of physical infrastructure is contributory for poverty alleviation in every country. The road is one of the major components which is very significant in Ethiopia due to lack of highly developed infrastructure, particularly in the rural road sector. Selection of the appropriate road construction and maintenance methods such as labo... Show More
  • Calculation and Analysis of Interaction Between Buried Pipeline and Soil

    She Yanhua

    Issue: Volume 5, Issue 4, July 2017
    Pages: 220-224
    Received: 19 July 2017
    Published: 19 July 2017
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    Abstract: In order to gain a clear idea of mechanism of stress and deformation for buried pipeline, the soil pressure on the buried pipeline computation boiled down to solving the gravity field in two-dimensional elastic medium embedded with an elastic ring hole stress concentration problem. Based on considering the deformation coordination of pipe-soil cont... Show More
  • Strain-Based Finite Element Analysis of Stiffened Cylindrical Shell Roof

    Attia Mousa

    Issue: Volume 5, Issue 4, July 2017
    Pages: 225-230
    Received: 11 June 2017
    Accepted: 28 June 2017
    Published: 24 July 2017
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    Abstract: A new triangular cylindrical shell finite element is used to obtain an elastic linear analysis of a cylindrical shell roof. The element’s displacement fields are in terms of curvilinear coordinates, satisfy the exact requirement of rigid body modes of deformation and have five degrees of freedom at each of the three corner nodes. The efficiency of ... Show More
  • Probabilistic Analysis of Joint Work Between Pile and Soil

    Hongying Jiang, Jiaming Lu

    Issue: Volume 5, Issue 4, July 2017
    Pages: 231-234
    Received: 1 August 2017
    Published: 2 August 2017
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    Abstract: Based on the two-dimensional simulation experiment and used the stochastic theory, the regulation of load sharing ratio between pile and soil in composite foundation during construction and consolidation settlement of soil is studied. A simplified probabilistic model is proposed to estimate the load sharing ratio. It provides a reference basis for ... Show More
  • Research on the Vertical Setback Problem of Steel Bundled Tube Structure

    Hao Yong, Li Yansong, Jiu Zhenggang, Zhang Tao, Wang Futian, Zhang Xusheng

    Issue: Volume 5, Issue 4, July 2017
    Pages: 235-241
    Received: 13 August 2017
    Published: 14 August 2017
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    Abstract: To study the mechanical performance of steel bundled-tube structures and find the reasonable setback scheme, the 18 calculation model with different setback based on the same bottom, height as well as the volume were designed. The effect of different setback methods on performance indexes such as natural vibration period of the structure, stiffness... Show More
  • Study on the Attenuation Mechanism of Unsaturated Residual Soil Under Rainfall Condition -A Case Study of the Tiller and Sediment Soil in Qishan Landslide, China

    Liu Junzhe, Zuo Changqun, Song Yingjie, Ren Rui, Li Zi

    Issue: Volume 5, Issue 4, July 2017
    Pages: 242-253
    Received: 13 August 2017
    Published: 14 August 2017
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    Abstract: In the most area of the Southern part in China, the high-intensity and large-scale rainfalls would easily cause some natural disasters like landslide and mud slide in the area of which the geological conditions are not stable and could lead to mass casualty and a great loss in economy. The paper targets the tuff residual soil in Qishan, Yongtai cit... Show More