نتایج جستجو برای: epb shield tunneling machine
تعداد نتایج: 293202 فیلتر نتایج به سال:
The article considers the problems of magnetic field distribution, generated by a power electric cable at micro-tunnel-boring shield arrangement site numerical modeling with further full-scale device model experiment. impact foreign sources on readings three-component sensors was established in process study. considerable existence parasitic noises, conditioned external fields and high sensitiv...
In this paper, we present the current status of the JPWL standardization work item. JPWL is an extension of the JPEG 2000 baseline specification in order to enable the efficient transmission of JPEG 2000 codestream over an error-prone network. In particular, JPWL supports a set of tools and methods for error protection and correction such as Forward Error Correcting (FEC) codes, Unequal Error P...
Recent studies have increasingly investigated construction methods for tunnel excavation because of growing underground space development. Although the New Austrian tunneling method (NATM)—a representative method—can be applied to various ground conditions, as well having good constructability and economic feasibility, it suffers from problems such vibration noise. By contrast, using a boring m...
The prevalence of preterm birth is widespread with very little understanding of its causes and no unambiguous epidemiological data for predicting its occurrence. Formed in weeks 30 to 33 of pregnancy (Wilson and Maibach, 1980), the protective epidermal permeability barrier (EPB) of the skin is essential for survival as it provides the first line of defense against infection, environmental insul...
A frequent problem when constructing metro tunnels is the uneven settlement of adjacent buildings, which results in huge economic losses. Due to shields causing this study took Nantong Metro Line 1 as research object. The runs from East Huancheng Road Station Intermediate People’s Court and passes under old residential area Community Sendadi-Huayuan building. Based on monitoring data, analyzed ...
Abstract The present research exposes the investigation on three-dimensional modeling of single and twin metro tunnels for case Tehran line. At first, simulation implemented comparison ground movements in tunnels. Then has been performed influence effective parameters EPB-TBM surface settlements throughout excavation. overcutting, shield conicity, grouting, final lining system modeled face supp...
A defective epidermal permeability barrier (EPB) in premature birth remains a leading cause of neonatal death as a result of its associated complications, which include poor temperature stability, infection by micro-organisms through the skin, and the outflow of water. Despite its importance in survival, the mechanisms involved in the formation and maintenance of the EPB are not well understood...
Breast cancer is one of the most common and lethal cancers in women. As a hub gene involved in a diversity of tumors, the ubiquitin-conjugating enzyme H10 (UbcH10), may also play some roles in the genesis and development of breast cancer. In the current study, we found that the expression of UbcH10 was up-regulated in some breast cancer tissues and five cell lines. We established a dual drug re...
An effective polarizable bond (EPB) model has been developed for computer simulation of proteins. In this partial polarizable approach, all polar groups of amino acids are treated as polarizable, and the relevant polarizable parameters were determined by fitting to quantum calculated electrostatic properties of these polar groups. Extensive numerical tests on a diverse set of proteins (includin...
امروزه ماشینهای تونلبری TBM (Tunnel Boring Machine) بطور وسیعی در حفر تونلها بخصوص تونلهای شهری استفاده میشوند. این ماشینها بر اساس روش نگهداری سینهکار و دیوارههای تونل، دارای انواع مختلفی میباشند. یکی از انواع این ماشینها، سپرهای تعادلی فشار زمین EPB (Earth Pressure Balance) میباشد که جهت حفاری خط 1 متروی تبریز مورد استفاده قرار گرفته است. عوامل مختلفی نظیر شرایط زمینشناسی، خصوصیا...
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