Underground hydropower construction

 

The invention relates to hydraulic construction and can be used as Bank protection structures to prevent erosion of canals, rivers and reformation riverbeds for their regulation. Underground hydropower construction has a cross-section of the Tauri form consisting of a wall, oriented down and buried in the ground. To the wall flexibly attached mesh reinforcement, which is separated from her solid structural deformation seam shelf. Top shelf mark coincides with the marked surface of the bottom of the river or channel. In the shelf is in the horizontal plane of the solid mesh. In the wall in the vertical plane of the reinforcement cage is installed. In the front part attached to the construction of flexible apron, also separated structural expansion joints on separate interconnected units. The proposed construction will significantly save money spent on construction material and is more economical and reliable. 1 C.p. f-crystals, 8 ill.

The invention relates to hydraulic construction and can be used as coastal defences for Predoiu relates to hydraulic engineering and land reclamation construction and can be used as shore protection structures in erodible channels of the rivers, canals and other structures.

A device for mounting a slope of earthen structures [1], containing laid on slopes synthetic filter cover, the retaining elements and the layer of riprap. The retaining elements are in the form of bars, racks with hinges, ropes, nets, and limiters. Rock placement is made in the form of gravel. The lower ends of the uprights pivotally attached to the crossbar, and their upper ends to the rope. On the rope attached to the net. One end of the rope attached to the crossbar, and their other free ends are strained due to the application of force, a rack and a crossbar connected To the limit. Between the coating and the grid is laid a layer of riprap. A layer of gravel protects the floor from dynamic wave action. He in turn, protected by a grid held at a predetermined position by the ropes. The disadvantage of this technical solution is that: - mounting in direct contact with the fluid flow and transported sediments and therefore may be subject to rapid wear and destruction in the short term; - the design is quite a complex technical solution that will be reflected in the reliability and cost; - effective; - the environment is not favorable technical solution.

The closest technical solution is buried Bank protection structure containing a flexible structure made of concrete and reinforcement, divided structurally-expansion joints on separate interconnected units [2]. The disadvantage of this technical solution are: - the relative complexity and economiccost technical solutions; - this solution is not applicable on the canals and rivers, whose capacity may be reduced as a result of tightness of such facilities; - operation of shore protection structures is the result of the degradation of unevenly deeper, losing the aesthetic appeal.

The purpose of the invention. Improving the reliability and reducing the complexity of the construction.

This objective is achieved in that before dams or other protected from the degradation of structures, such as retaining walls, arranged recessed coastal defences, with the Tauri cross-sectional shape, so that the shelf mark coincides with the elevation of the earth's surface, and the recessed wall in blurring the bottom. In front, in the place of the birth of the degradation of coastal defences in General. Buried coastal defences are arranged across the flow path at an acute angle to the transverse axis of the bed of the river or channel. This planned location of underground hydropower installations reduces the transport capacity of the flow and prevents Padmini dams and other structures.

Structurally recessed hydropower facility consists of a flexible design. Flexibility is achieved by the fact that around the living section in the body provided by the grid, and the design is divided into structural expansion joints on the interconnected blocks. Wall, embedded in soil, also broken structural expansion joints for interlocking blocks and the height of the wall along the length of the root part is increased, and thus the design has a high resistance to bending. Shelves attached to the wall of the wire mesh and the role of the apron, to prevent possible Padmini wall. Padmavati below, these structures down and when equilibrium had been reached, the process will stop lowering and they entered the ground and turn into the anchor. T section recessed coastal defences makes the structure rigid and wget to be very diverse and depends on the type of soil of the bottom of the river or channel. If the soil is sandy loams or clays, the most effective is expanding the cross-sectional shape, in this form of cross-sectional design will be more resistant against possible deformation changes. If the soil are sand, gravel or other soils with high friction, in such instances, the desired small narrowing of the width of the wall at the bottom.

In Fig. 1 shows a plan of the dam underground hydropower facilities; Fig.2 is a longitudinal section of subsurface coastal defences; Fig.3 - section b-b of Fig.2 for the variant when the shelf has a constant width, and Fig.4 - section C-C in Fig.2 for the variant when the shelf has a constant width, and Fig.5 is a longitudinal section of subsurface coastal defences with a retaining wall after prolonged operation, and Fig. 6 shows an axonometric view recessed coastal defences; Fig. 7 - section b-b of Fig.2 for the variant when the shelf down is reduced in width; Fig.8 - section b-b of Fig.2 for the variant when the bottom shelf extends across the width.

Hydropower facility consists of loose dirt dam 1, horseback slope 2 which wedged zapobieganie 3 Tauri has the form, wall 5 which is oriented downwards, and mark the surface of the shelf 6 coincides with the elevation of the bottom of the base. In the wall 5 is provided with reinforcing cage 7 and the shelf 6 - mesh 8, giving it flexibility. In front of subsurface coastal defences 3 there is a flexible apron 9, broken, as the construction, structural expansion joints 10 in blocks of 4. On the top slope 2 dam 1 is provided gabion mount 11. Underground hydropower construction 3 can be used to protect against the degradation of retaining walls 12. Wall 5, depending on the soil type can have a constriction 13 or extension 14.

Hydropower construction is assembled and operates as follows. Before dam 1 or retaining wall 12, which is protected from degradation, arranged recessed coastal defences 3 having Tauri cross-sectional shape, so that the shelf mark 6 coincides with the marked surface of the bottom of the channel or river, and the wall 5 is buried in blurring the bottom. In front, at the end of the wall, is arranged a flexible apron 9 which, padmavati, starts to fall and dive up until erode the ability of the stream reaches some ravnovesnymi structural expansion joints 10 on separate interconnected blocks of 4. Buried coastal defences 3 set across the traffic flow at an acute angle to the transverse axis of the bed of the river or channel. Under this plan the location of underground hydropower installations 3 decreases the transport capacity of the flow and prevents Padmini dams 1, retaining walls 12 and other structures. In the case of dam 1 horse slope 2 is fixed gabion mount 11.

Structurally-embedded hydropower structure 3 consists of a flexible design. Flexibility is achieved by the fact that around the living section in the body provided by the grid 8, and the design is divided into structural expansion joints 10 are interconnected blocks of 4. The wall 5, is embedded in the ground, also broken structural expansion joints 10 are interconnected blocks 4 and the wall 5 along the length of the root part is increased, and thus the design has a high resistance to bending. In the wall is provided with reinforcing cage 7. Wall thickness 5 depending on its height and length varies from 0.3 to 0.7 m 6 Shelves attached to the wall 5 mesh 8 and the role of the apron 9, prevents possible Padmini wall 5. Padmavati bottom, these shelves 6 oposta the ground and turn into the anchor. T section recessed coastal defences 3 makes hard to possible bending caused by the pressure on her as a barrier from the traffic stream.

The cross-sectional shape of the wall 5 can be various and depends on the type of soil of the bottom of the river or channel. If the soil is sandy loams or clays, the most effective solution is expanding the cross-sectional shape of the wall 5, in this form of the cross section of the wall structure 5 will be more resistant against possible deformation changes. If the soil are sand, gravel or other soils with high friction, in such instances, the desired small narrowing of the width of the wall down. The main advantage of the proposed solution is that it is not a barrier to the movement of the water flow and thereby reduces the capacity of the channel or riverbed, it is very important in cases where the width of the channel or riverbed small.

This underground hydropower plant can be used in mountain and lowland rivers.

Underground hydropower construction does not violate the aesthetic appeal protected from podce to save money spent on construction material and is more economical and reliable.

Hydropower construction will provide protection from flooding and erosion during flood costs, settlements, falls into this area.

Sources of information 1. A. C. 1461821 the USSR, MKI E 02 D 17/20. Device for fastening an earthen structures. B /W. M. Skundin and A. P. Novoselovka (USSR); Statements. 04.03.87; publ. 28.02.89, bull. 8.

2. Pashchenko B. C. Protection of Railways from erosion on mountain rivers. Moscow, "Transgenderist", 1958, pages 76-94.

Claims

1. Underground hydropower structure containing a flexible structure made of concrete and reinforcement, divided structurally-expansion joints on separate interconnected units, characterized in that it has a cross-section of Tauris form consisting of a wall, oriented down and buried in the ground, and flexibly attached to the reinforcing mesh and separated solid structural deformation seam shelves, the top mark which matches the marking surface of the bottom of the river or channel, and the shelf is in the horizontal plane continuous reinforcement mesh, and in the wall in the vertical plane of the reinforcement cage is installed, in front of the building attached flexible uglublennoe hydropower facility under item 1, characterized in that the height is embedded in the ground wall increases to shore.

 

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1 ex

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