نتایج جستجو برای: rock engineering system
تعداد نتایج: 2446075 فیلتر نتایج به سال:
Formation Micro Imager (FMI) can directly reflect changes of wall stratum and rock structures. It is also an important method to divide stratum and identify lithology. However, people usually deal with FMI images manually, which is extremely inefficient and may incur heavy burdens in practice. In this paper, with characteristics of rock structures from FMI images, we develop an efficient and in...
In the last few decades, rock mass classification had been used intensively in engineering design. The concern arises for potential occurrence of localized or global failure due to geological (such as discontinuities, water, weathering) and non-geological construction load, vibration) factors should be taken into consideration. ability a system represent condition straightforward effective way ...
This paper presents new valuable field data and a comprehensive approach to the determination of the rock mass classification and tunnel support systems for tunnels in unconsolidated sedimentary rocks as a special soil condition. The main objective of this study is to investigate and present the characteristics of the unconsolidated sedimentary rock by using the point load tests and slake durab...
ABSTRACT: Frequent occurrence of seismic activities has drawn attention of various researchers, cutting across science and engineering discipline. The domain of earthquake geotechnical engineering has extended from determination of attenuation of seismic wave to providing suitable foundation under liquefied and unliquefied soil conditions. The seismic data can be fully intrepreated by use of se...
The triggering of slope failures can cause a significant impact on human settlements and infrastructure in cities, coasts, islands mountains. Therefore, reliable evaluation the landslide hazard would help mitigate effects such landslides decrease relevant risk. goal this paper is to develop, for first time regional scale (1:100,000), susceptibility map entire area Attica region Greece. In order...
The ROCK algorithm plays an important role in data mining and data analysis, which can help people discover knowledge from large amounts of data. In this paper, an improved ROCK algorithm based on the P system with active membranes is constructed. Since the P system has great parallelism, it could reduce the computational time complexity and is suitable for the clustering problem. All the rules...
Geotechnical engineering deals with the safe transmittal of loads due to various engineering applications to, and into, the soil or rock mass. The soil and rock mass formations are heterogeneous and generally are subjected to stresses (due to various engineering applications) which are additional to those presently existing in the earth mass from its self weight and geological history. Due to t...
Original scientific paper Mining near the fault structure can easily lead to the fault activity and induce serious geological disasters, posing a serious threat to coal mine safety production. To reveal the surrounding rock activity characteristics induced by near-fault mining, taking Qixing Coal Mine in China as the engineering background, the contrastive analysis of the microseismic events in...
For the high precision calculation of mechanics mechanism for surrounding rock with large deformation, numerical calculation and application of large deformation damage constitutive model have been researched. Based on large deformation finite element theory, large deformation calculation process was proposed and the statistical constitutive model and parameter estimation method of rock damage ...
باتوجه به اهمیت ایمنی سازه، انتخاب نگهداری و تحلیل اندرکنش آن با زمین و همچنین تعیین سختی نگهداری انتخابی و میزان تغییر شکل ، همواره مورد بحث درطراحی سازه های زیرزمینی بوده است. از این رو در این تحقیق ، روشی برای انتخاب سختی نگهداری از نوع بتن، در تونل با توده سنگ دارای رفتار الاستیک و شاخص مقاومت زمین شناسیgsiمختلف، ارائه شده است. این روش امکان تعیین سختی نگهداری را با توجه به انتخاب دلخواه می...
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