{"created":"2023-06-19T11:43:24.272542+00:00","id":12934,"links":{},"metadata":{"_buckets":{"deposit":"5cb3427e-58f5-4f3c-a57f-f207e3a73b0f"},"_deposit":{"created_by":15,"id":"12934","owners":[15],"pid":{"revision_id":0,"type":"depid","value":"12934"},"status":"published"},"_oai":{"id":"oai:mie-u.repo.nii.ac.jp:00012934","sets":["420:686:687:1222"]},"author_link":["41836","41834"],"item_7_alternative_title_19":{"attribute_name":"その他の言語のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"太陽光発電用基礎設計における新技術開発に関する研究","subitem_alternative_title_language":"ja"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-03","bibliographicIssueDateType":"Issued"}}]},"item_7_contributor_61":{"attribute_name":"修士論文指導教員","attribute_value_mlt":[{"contributorNames":[{"contributorName":"保世院, 座狩屋","lang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"41836","nameIdentifierScheme":"WEKO"}]}]},"item_7_description_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The rising queries on climate change and other environmental issues have demanded sustainable developments in recent year. Increasing demand for clean energy is pushing for more economical means of constructing such structures with maximum evaluation focused on the cost of installation and the ultimate strength of the fully loaded structure hence composite single piles come into place. Composite single-piles are one of the major components of a foundation as they act as the primary component in the transmission of the weights above the structure into the ground for stability to be attained. Most research being done today in solar energy are mostly related to the development of various types of solar cells and the reduction in the size of solar panels while improving the operation and energy tapping efficiency. Many engineering structures both above ground and under the ground surface are subject to forces that create overturning moments upon them. In this study, the structure under consideration is the composite single pile foundation of solar panels as very little research has been conducted on the safety of foundation for solar panels. This thesis focuses on the design and testing of a composite single pile foundation taking into account the strength factor, bearing capacity and foundation safety factor. The foundation consists of a hollow steel pipe bonded to the ground by a thin layer of cement and sand mortar. As studied in this research the design of the pile element, gave the dimensions of 1.4m pile foundation length and 0.26m diameter which were employed in the research to determine the lateral and pull-out capacity. Firstly, a full-scale experiment was performed to evaluate the ultimate lateral capacity of the pile foundation. Secondly, experimental results were compared with analytical ones as a step of in-depth understanding of the lateral and the axial/pull-out loading behaviour. Thirdly, a numerical model considering soil-structure interaction was also developed to determine the lateral and the pull-out capacity of the foundation. Finite difference method was adopted to solve the numerical model in large deformation condition, while FISH programming designed to facilitate the problem with automatic mesh generation and solver. Strength evaluation was done through numerical simulation using FLAC2D which uses the finite difference method (FDM) to evaluate the input codes in step by step manner while integrating the input parameters in a stress train relation as described in the numerical model code. The dimensions of the model mesh were twice the pile foundation depth, 2L in the y-direction and 2L in the x-direction from the pile vertical axis. Strength evaluation was done on dense sand, clay and silty medium to determine the vast array of data for engineering design measures. \n Ultimately, this research entailed a detailed numerical and parametric study on the lateral behavior of piles in foundation designs. For this reason, a detailed study on the influence generated on the p-y curves was mandatory to create a numerically valid model for use in the process of foundation design without much ado. FDM was used to implement a solution to the coded input for example soil and pile element parameters. The model validation process under lateral study done in this paper involved the variation of some of the critical parameters such as the variation on the type of soil in the area under consideration. Next, modification of the elastic modulus of the given soil as a check on the cohesiveness, change on the loading velocity at the top of the pile, a variation of the pile material stiffness and the difference of the pile eccentricity. Considering the pull-out study, the parametric study was done by varying the foundation depth from 0.7m to 2.0m, soil angle of internal friction from 10° to 40° and the inclusivity of gap upon failure. The results obtained from the p-y curves generated from the parameters, underwent sifting through for any effects on the ultimate loading capacity of the pile to the allowed design loading limits upon full structural installation. This variation was necessary for the approval of the validity of the model in engineering design. The parametric study from this study shows that the structure is of functional strength and a tolerable factor of safety. The design dimensions show good lateral capacity of 15kN and pull-out capacity up to 94kN, 90kN and 80kN for dense sand, silty soil and clay soil respectively. The suggested relations for the lateral capacity and pull-out capacity of the composite single pile regarding the lateral and axial ability are within design limits, 4kN. The suggested relations for the lateral and pull-out capacity of the single pile regarding the lateral and axial ability are within design limits.","subitem_description_type":"Abstract"}]},"item_7_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Department of Environmental Science and Technology Graduate School of Bioresourses Mie University, Japan","subitem_description_type":"Other"},{"subitem_description":"111p","subitem_description_type":"Other"}]},"item_7_full_name_2":{"attribute_name":"著者（ヨミ）","attribute_value_mlt":[{"names":[{"name":"オウィノ, オティエノ アレックス","nameLang":"ja"}]}]},"item_7_publisher_30":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"三重大学"}]},"item_7_text_31":{"attribute_name":"出版者（ヨミ）","attribute_value_mlt":[{"subitem_text_value":"ミエダイガク"}]},"item_7_text_65":{"attribute_name":"資源タイプ（三重大）","attribute_value_mlt":[{"subitem_text_value":"Master's Thesis / 修士論文"}]},"item_7_version_type_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"OWINO, OTIENO ALEX","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2019-11-06"}],"displaytype":"detail","filename":"2018MB0041.pdf","filesize":[{"value":"2.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2018MB0041.pdf","url":"https://mie-u.repo.nii.ac.jp/record/12934/files/2018MB0041.pdf"},"version_id":"a6679b72-531c-4e45-a458-70e62d2e921c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Lateral load, pull-out capacity, p-y curve, skin friction, finite difference method,stress-strain relation, Soil-pile interaction, FLAC2D","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"thesis","resourceuri":"http://purl.org/coar/resource_type/c_46ec"}]},"item_title":"Development of New Technology for Design of Solar Support Structures","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Development of New Technology for Design of Solar Support Structures","subitem_title_language":"en"}]},"item_type_id":"7","owner":"15","path":["1222"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2019-11-06"},"publish_date":"2019-11-06","publish_status":"0","recid":"12934","relation_version_is_last":true,"title":["Development of New Technology for Design of Solar Support Structures"],"weko_creator_id":"15","weko_shared_id":-1},"updated":"2024-01-05T02:07:13.929969+00:00"}