Keywords: Fondation ; Mur de soutenement ; Pieux ; Capacite portante ; Ancrage ; Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08

Foundation analysis and design

Wyznaczanie parametrów modeli gruntów na podstawie badań próbnych obciążeń w skali naturalnej

Tesis para optar al titulo de: Magister en Ingenieria - Infraestructura y Sistemas de Transporte

Propuesta teórica de muros con llantas de acuerdo con las características de los suelos de la región. Caso de estudio: departamento de Caldas

This research presents a method of using MATLAB in analyzing a nonhomogeneous soil (Gibson-type) by estimating the displacements and stresses under the strip footing during applied incremental loading sequences. This paper presents a two-dimensional finite element method. In this method, the soil is divided into a number of triangle elements. A model soil (Gibson-type) with linearly increasing modulus of elasticity with depth is presented. The influences of modulus of elasticity, incremental loading, width of footing, and depth of footing are considered in this paper. The results are compared with authors' conclusions of previous studies. ةصلاخلا ةقيرط م دق ي ثحبلا اذه ـ لا مادختسا MATLAB ةبرت ليلحت يف ةــسـناجتم ريغ (Gibson-type) ب باسـح ةطـساو تاـحازلإا داهجلإاو تا تحت يطيرش ساسأ ءانثأ قيبطت يديازت ليمحت بقاعتم . ذه ا لا ثحب  ي ةقيرط  مدق لا نع ا رص ةددحملا داعبلأا ةيئانثلا . هذـه يف ةقيرطلا ميسقت مت ا  نمِ ددع ىلإ ةبرتل لا رِصانع ةثلثملا . ةبرت لا جذومن لا م د َ ق م ةـــ (Gibson-type) تاذ لماعم م ةنور يازتم د لكشـب  يطخ عم قمعلا . ةسارد مت لماعم ريثأت ،ةنورملا لاو ليمحت ديازتملا ، و ضرع ساسلأا قمعو ذه يف ا لا ثحب . جئات َ نلا  نإ تمت ن را َ ق م اـهت عم تاجاتنتسا نم نيفلؤم لا ةقباسلا تاسارد .

background or methods or result

Finite element analysis of strip footing resting on gibson-type soil by using matlab

ABSTRACTThe advantages of MSE walls are simple construction techniques, have aesthetic value and material resistance and are more economical. In this study, analysis was carried out on variations in anchor length, tensile strength and vertical spacing of the reinforcement elements, namely the geogrid, which was then modeled with sand and clay reinforcement soil. The analysis is carried out with the help of a finite element program, which will result in the value of the lateral deformation of the wall. Based on the analysis, the anchor length and tensile strength of the geogrid, the greater the anchor length and tensile strength, the smaller the resulting lateral deformation. Whereas at vertical distance, the results obtained are just the opposite. The results also show that the use of clay soils tends to be more stable in resisting lateral forces than sandy soils. Then in an effort to reduce the value of lateral deformation that occurs, further considerations can be focused on the selection of tensile strength or vertical spacing rather than the length of the anchorage. The results also produce a correlation equation that can be used to predict and determine the value of horizontal deformation according to the desired variation value. ABSTRAKKelebihan dinding MSE ialah teknik konstruksi yang sederhana, punya nilai estetika dan ketahanan material serta lebih ekonomis. Pada penelitian ini, analisis dilakukan terhadap variasi panjang penjangkaran, kuat tarik dan spasi vertikal elemen perkuatannya yaitu geogrid, yang kemudian dimodelkan dengan tanah perkuatan pasir dan lempung. Analisis dilakukan dengan bantuan program metode elemen hingga, yang akan menghasilkan nilai deformasi lateral dari dinding MSE untuk dianalisis. Berdasarkan analisis, pada panjang penjangkaran dan kuat tarik geogrid, semakin besar nilai panjang penjangkaran dan kuat tariknya, maka semakin kecil deformasi lateral yang dihasilkan. Sedangkan pada jarak vertikal, hasil yang didapat justru sebaliknya. Perbandingan hasil juga didapat dari dua jenis tanah perkuatan yang berbeda, yang mana dapat disimpulkan bahwa pengunaan jenis tanah lempung cenderung lebih stabil dalam menahan gaya lateral dibandingkan dengan jenis tanah pasir. Kemudian untuk upaya mengurangi nilai deformasi lateral yang terjadi, pertimbangan lebih lanjut dapat difokuskan pada pemilihan kuat tarik ataupun spasi vertikalnya dibanding pada panjang penjangkarannya. Dari hasil analisis juga menghasilkan persamaan korelasi sehingga dapat digunakan untuk memprediksi dan menentukan nilai deformasi horizontal sesuai dengan nilai variasi yang diinginkan.

Analisis deformasi lateral mse wall dengan perkuatan geogrid terhadap variasi jenis material timbunan

In major cities due to scarcity of the space in prime locations, the construction is even proposed on refilled areas. The refilled areas may be of natural fill or engineering fill. In engineering re fill the proper precaution is taken for the selection of the refill material and at most care is taken for the compaction too with the understanding that some construction may be taken in future on such areas . But this type of the filling procedure is rarely adopted. Normally the filling is done by any material including garbage with no importance given to compaction; it is just dumping of the material in to the pits of the ground. It is always beneficial to have foundations on engineering refilled soil. But however it is a matter of great concerned when the foundation will be proposed on such type of natural or manmade refills. In this paper an attempt is made to study the raft foundation and raft with pile foundation on refilled manmade soil.

Foundation analysis and design

Citations

Wyznaczanie parametrów modeli gruntów na podstawie badań próbnych obciążeń w skali naturalnej

Propuesta teórica de muros con llantas de acuerdo con las características de los suelos de la región. Caso de estudio: departamento de Caldas

Finite element analysis of strip footing resting on gibson-type soil by using matlab

Analisis deformasi lateral mse wall dengan perkuatan geogrid terhadap variasi jenis material timbunan

Foundation in Refilled Soil

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