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

Design of Cantilever and Gabion Retaining Walls for Slope Failure Caused by Hurricane Maria in Lares, PR

background

Evaluating the Effect of Temporary Casing on Drilled Shaft Rock Socket Capacity

Accurate determination of allowable bearing capacity of soil is key to geotechnical foundations design so as to prevent collapse of structures built on them. Allowable bearing capacity of the study location has been determined by shear wave velocity approach. The seismic data used in this study are the in-situ shear and compressional wave velocities values measured by a 12-channel signal enhancement seismograph. Three layers were detected by the method. Empirical formulations and mathematical relationship between seismic velocities and elastic parameters were used to evaluate the allowable bearing capacity and other parameters presented in Table 1. Results show that allowable bearing capacity for layer 1 ranges from 123.56 to 173.54kN/m 2 . Layer 2 ranges from 233.24 to 377.62kN/m 2 , while layer 3 ranges from 437.62 – 616kN/m 2 . It was observed that allowable bearing capacity increases with depth – a 13% difference between layers 1 and 2 while between layer 2 and 3 there is a 22% difference. By comparison, the allowable bearing capacities evaluated in this study are in agreement with empirical values of allowable bearing capacity of soils proposed by other scholars. Findings show the study location is suitable for geotechnical foundation designs. Keywords: Ayila, Shear wave velocity, Allowable bearing capacity, Coefficient of subgrade reaction

/pdf/evaluation-of-allowable-bearing-capacity-of-ayila-soil-south-28903eabax.pdf

Evaluation of allowable bearing capacity of Ayila Soil, south-west Nigeria

Publisher Summary Evaluations of risk management programs can take one of two forms. The first is a formal audit and the second type of evaluation is less formal. Audits are a fundamental component of any management system. The audit and its report will generally be directed toward the facility's line managers. The reasons for conducting audits are: accident follow-up, regulatory/standards compliance, voluntary check, and insurance and business security. The standards of the audits are: regulations, industry codes, and internal standards. An audit generally consists of a combination of interviews and review of documentation. The auditor will have to be selective regarding the documents that he/she reads and the people who are chosen for interviews. Formal audits must be objective and all findings must be based on observed, verifiable facts. Ideally, two auditors would reach the same conclusions when asked to analyze the same situation with regard to the same baseline standard.

Audits and Assessments

Dogal zeminlerin, zemin iyilestirmesi uygulanmis zeminlerin ve yapay dolgularin t asima gucu ve oturma degerlerinin yerinde dogrudan olculebildigi plaka yukleme deney duzenegi, zeminin uzerine oturan rijit bir plakadan, yukun alindigi bir olu yukten ve bu yuku alttaki plakaya aktaran bir kriko ile oturma miktarini olcen komparatorlerden olusmaktadir. Gunumuzde, dogal zeminlerden daha cok karayolu, baraj govde dolgulari ve havaalanlarinda dolgu sikistirma kontrolu amaciyla tercih edilmektedir. Plaka yukleme deneyi kaya ortamlar uzerinde de uygulanmaktadir. Basit bir duzenege sahip olmasi ve hizli sonuc vermesi gibi avantajlarinin yani sira deneyin bazi sinirli yonleri de vardir. Etki derinligi problemi bunlardan en onemlisidir. Deney sonuclari, zeminin dogal yogunluk ve nem miktarina bagli olarak degismektedir. Yapilan ornek uygulamalarda, zayif kayalarin ve suya hassas zayif cimentolu zeminlerin gerilme - deformasyon iliskisinin de plaka yukleme deneyi ile belirlenebilecegi gorulmustur. Bu calismada; ozelikle dolgu zeminlerin tasima gucunun belirlenmesinde avantajlara sahip olan plaka yukleme deneyinin ayrintilari ve deney sonunda elde edilebilecek verilerin yorumlanabilmesi icin dikkat edilmesi gereken hususlar belirtilmis ve ornek uygulamalar sunulmustur.

Additional excerpts

/pdf/dogal-zeminlerin-ve-yapay-dolgularin-plaka-yukleme-deneyi-4z15win99t.pdf

Foundation analysis and design

Citations

Design of Cantilever and Gabion Retaining Walls for Slope Failure Caused by Hurricane Maria in Lares, PR

Evaluating the Effect of Temporary Casing on Drilled Shaft Rock Socket Capacity

Evaluation of allowable bearing capacity of Ayila Soil, south-west Nigeria

Audits and Assessments

Doğal Zeminlerin ve Yapay Dolguların Plaka Yükleme Deneyi ile İncelenmesi

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