نتایج جستجو برای: canal lining
تعداد نتایج: 41906 فیلتر نتایج به سال:
Kuttanad region in Kerala, India, is a place that predominantly consists of soft soil formations with low shear strength and water resistance rendering them problematic for construction purposes. Pavements constructed on such deposits have been subjected to structural rutting the high erodibility in-situ necessitates need use suitable ground improvement techniques. The present environmental sce...
the hydraulic pressure is one of the most important factors in the design of pressure intake tunnels. since the surrounding media cannot usually resist the high internal pressure of these tunnels, they are usually finished with an adequate lining mostly of reinforced concrete, which is an interaction problem between water, soil or rock and concrete lining. although reinforcing the concrete lini...
OtItIs externa Otitis externa is an inflammation of the external auditory canal, characterised by erythema and oedema. It has a 12-month period prevalence of 1.3% in females and 1.2% in males.1 Patients typically present with otalgia and an infected discharge. However, there is generally no change in hearing unless the entire canal is obstructed. Movement of the tragus results in significant di...
there are several methods for analysing the behaviour of underground structures under different loading conditions. most of these methods have many simplifications; therefore, in some cases, the results are too conservative and a very high safety factor, usually of more than 2 is needed. on the other hand, for stability analysis and the designing of support systems, these methods consider segme...
چکیده ندارد.
concrete is the most common material used to line irrigation canals and must maintain its durability for the lifetime of the canal. compressive strength has been used as an index to control the quality of concrete; concrete that remains durable under freeze-thaw conditions is that with high compressive strength. research has shown that concrete linings can show suitable compressive strength in ...
The distribution and localization of acid and neutral mucins in various cells lining the olfactory epithelium of Cyprinus carpio have been studied histochemically by employing the PAS-AB technique. Variations in the localization of protein in different cells lining the olfactory epithelium have been correlated with the functional significance of the region concerned. Intense localization of t...
expansible soils are those which will suffer considerable swelling and volume change when subjected to water. the resulting swelling pressure may cause complete destruction of such light structures as irrigation canal linings, floor slabs, etc. based upon previous investigations, swelling of clayey soils has been blamed for failure of many irrigation canals in iran and in other countries of the...
The goal of this study is to assess the rehabilitation Bahr Awlad Mohamed canal.The canal was rehabilitated by installing lining trapezoidal cross-sections. Before and after process, a field investigation, hydraulic hydrographic measurements, mathematical model (Sobek – 1D) were conducted. According findings, canal's improved average water velocity from 0.18 m/s 0.32 m/s, Manning roughness coef...
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