"penstock"相关例句(16)
1.Elementary Discussion of the Penstock Anchorage Block Design of High—head Hydropower Station
2.The penstock can be divided into manual type, manual and electric type, electric type according to the headstock.
3.The Strength and Deformation of Reinforced Concrete Penstock with Steel Lining Located on the Downstream Surface of Concrete Dam
4.Influence of dam displacement and internal water pressure on the structural stresses of penstock laid on downstream face of dam
5.Long and Large Pipe Shelf Construction Method in Overburden at Lower Horizontal Section of Penstock at Liziping Hydropower Station
6.It is difficult to analyze combined work of underground penstock due to the gap among steel lining, concrete lining and rock.
7.Parameters of contact layer are determined when deformation of contact layer is equal to initial gap which is proposed in the criterion of penstock.
8.The penstock chooses end face integral seal and the seal material is special rubber, which makes the seal safety and durable.
9.Because concrete crack will greatly affect the security of concrete penstock in hydropower station, the paper applies the theory of global optimization method to predict the maximum concrete crack width in steel-lined reinforced concrete penstock and bring forward a predicting model based on the theory of artificial neural network (ANN).
10.In order to ascertain stress behavior of steel lined reinforced concrete pipe accurately, according to the fundamental principle of non-linear computation of reinforced concrete elements, the steel lined reinforced concrete penstock on downstream dam surface in a hydropower station is calculated and analyzed, and the distribution of circumferential stress of the steel lined reinforced concrete pipe is obtained, it proves that it is safe and reasonable to use structures of steel lined reinforced concrete penstock in hydroelectric station construction, and can satisfy the requirement of project.
11.The penstock for Jinhe Hydropower Station is less in China, as it has a obliquity of 50° on the bending and inclined straight section in space; for which the manufacture and installation are smoothly completed under the construction condition in the tunnel and the environment of alpine region with available construction method in combination of limited construction method for the key technical problems of the manufacture and installation of the penstock, which provides a reference for the constructions under the similar circumstance.
12.The corrosion resistant plate penstock is in the frame of obvious-stem, which mainly consists of lifting device, frame, gate plate, seal, wedge block compressing set, rod and rod joint, rod guide tube, install accessory and etc.
13.Altogether 4 large collapses, 12 collapses with a height of over 3 m ,many small collapses and rockfalls happened during excavation of the power tunnel,the diversion tunnel,the underground penstock conduit and the construction adit.
14.Taking the example in the three gorges hydroelectric station, we researched the influence of the weld process on the construction and operation of penstock after moving contract-elongate nodes, analyzed the deformation law of two plans and calculated the crosswise and lengthwise shrinkage in weld process using experience formula and theory respectively, and then analyzed the influence of the welding and installing process on shrinkage, finally chose the best installation plan.
15.A brief introduction to scientific research in the Three Gorges Project(TGP) and the applications of research achievements is given,which include treatment of newly slited layer on the foundation of the first stage earth-rock cofferdam,dumping bottom technique of river closure in deep water,construction of cut-off walls in the second stage earth-rock cofferdams,3-D computer simulation of river closure,concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete,deep sliding resistance and stability of the intake dam section,the section of the intake of the power station,the intake penstock of the power station,layout and hydraulics problems of shiplocks,stability of high slopes of shiplocks,and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700MW turbine generator units.
16.Abstract: A brief introduction to scientific research in the Three Gorges Project(TGP) and the applications of research achievements is given,which include treatment of newly slited layer on the foundation of the first stage earth-rock cofferdam,dumping bottom technique of river closure in deep water,construction of cut-off walls in the second stage earth-rock cofferdams,3-D computer simulation of river closure,concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete,deep sliding resistance and stability of the intake dam section,the section of the intake of the power station,the intake penstock of the power station,layout and hydraulics problems of shiplocks,stability of high slopes of shiplocks,and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700MW turbine generator units.
