Sleeper and track in circular shield tunnel of pumped storage power station

Abstract

The utility model provides a pumped storage power station circular shield tunnel inner sleeper and track, including H-shaped steel and first angle iron, H-shaped steel cross section is big-end-up trapezoid, two first angle iron are fixed at one end of H-shaped steel sleeper symmetrically at a certain interval, two first angle iron form a group, two groups of first angle iron are respectively fixed at the both ends of H-shaped steel, and the two groups of first angle iron are fixed at the both ends of H-shaped steel. And two groups of second angle steel are arranged outside the two groups of first angle steel to clamp the outside steel rails with the pressing sheets. The circular shield tunnel track composed of the H-shaped steel, the two sets of first angle steel fixed to the two ends of the H-shaped steel, the second angle steel on the outer sides of the two sets of first angle steel and the pressing pieces has the advantages of being simple in structure and rapid to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station construction, in particular to a rail sleeper and a track in a circular shield tunnel of a pumped storage power station. Background Art

[0002] In the construction process of pumped storage hydropower station tunnels, shield construction is increasingly used in more and more pumped storage hydropower tunnels due to its high efficiency. Most of the corridors of pumped storage hydropower stations are 3.5m diameter tunnels. When shield excavates tunnels, the slag is pulled along the tunnel track by a battery car. Therefore, the rapid installation and disassembly of the track is the key to restricting the continuity of construction. Among these key factors, the rapid installation and disassembly of the sleepers is particularly important. In order to match the efficient construction of the shield, it is particularly important to use sleepers that can be quickly installed and disassembled. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rail sleeper and track in a circular shield tunnel of a pumped storage power station, which can be quickly installed and disassembled in the circular shield tunnel.

[0004] A rail sleeper in a circular shield tunnel of a pumped storage power station comprises an H-shaped steel and a first angle steel. The cross section of the H-shaped steel is an inverted trapezoid that is wide at the top and narrow at the bottom. Two first angle steels are symmetrically fixed at one end of the H-shaped steel rail sleeper at a certain distance. The two first angle steels form a group, and the two groups of first angle steels are respectively fixed at both ends of the H-shaped steel.

[0005] Furthermore, the first angle steel is welded and fixed to both ends of the H-shaped steel.

[0006] Furthermore, the two first angle steels are symmetrically spaced apart by a distance equal to the width of the rail.

[0007] Furthermore, it also includes a pressing plate, a first through hole is set at one end of the pressing plate, and second through holes are respectively set at both ends of the H-shaped steel, the second through holes are outside the first angle steel, bolts pass through the first through hole and the second through hole to press the pressing plate to the edge of one side of the bottom of the rail, and two second angle steels are respectively fixed at a certain distance from the two second through holes at both ends of the H-shaped steel, and the second angle steels are outside the first through hole.

[0008] The second technical solution provided by the utility model is:

[0009] A track in a circular shield tunnel of a pumped storage power station, the track comprising a rail sleeper and a rail (5) in the circular shield tunnel of the pumped storage power station, the rail sleeper comprising a plurality of H-shaped steels (1), the plurality of H-shaped steels (1) being inserted into a tunnel (7) at even intervals, and two of the rails (5) being inserted into two groups of first angle steels (2) provided on each H-shaped steel.

[0010] The third technical solution provided by the utility model is:

[0011] A pumped-storage power station circular shield tunnel inner track, the track comprising the pumped-storage power station circular shield tunnel inner rail sleeper, inner rail (5) and outer rail (5), a plurality of H-shaped steels (1) are inserted into the tunnel at even intervals, two inner rails (5) are respectively inserted into two groups of first angle steels (2) provided on each H-shaped steel (1), and two outer rails (5) are respectively inserted between two groups of second angle steels (6) provided on each H-shaped steel (1) and a pressing sheet (3).

[0012] The beneficial effects of the utility model are:

[0013] (1) The utility model utilizes the strength and rigidity of H-shaped steel, processes it into a trapezoidal cross section, fixes two sets of first angle steels on the H-shaped steel to clamp the rails, and forms the rail sleepers in the circular shield tunnel of the pumped storage power station, which has the advantages of simple structure and fast disassembly and installation;

[0014] (2) The utility model utilizes H-shaped steel and angle steel and gasket bolts set on the H-shaped steel to clamp and fix the rails to form the circular shield tunnel sleepers of the pumped storage power station, which has the advantages of simple structure and fast disassembly and installation;

[0015] (3) Most of the circular shield tunnels or drainage corridors of pumped storage power stations have a diameter of 3.5 meters, so the sleepers made of H-shaped steel and angle steel can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a rail sleeper in a circular shield tunnel of a pumped storage power station of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a sleeper embodiment 1 in a circular shield tunnel of a pumped-storage power station according to the utility model.

[0018] Explanation of symbols in the accompanying drawings:

[0019] 1. H-shaped steel, 2. First angle steel, 3. Pressing sheet, 4. Second through hole, 5. Rail, 6. Second angle steel, 7. Tunnel. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In the description of this patent, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] A sleeper in a circular shield tunnel of a pumped storage power station, such as Figure 1 to Figure 2 As shown, it includes an H-shaped steel 1 and a first angle steel 2. The cross section of the H-shaped steel 1 is an inverted trapezoid with a wide upper part and a narrow lower part. Two first angle steels 2 are symmetrically fixed at one end of the H-shaped steel 1 at a certain distance. The two first angle steels 2 form a group, and the two groups of first angle steels 2 are respectively fixed at both ends of the H-shaped steel 1. Further, the first angle steel 2 is welded and fixed at both ends of the H-shaped steel 1. Further, the two first angle steels 2 are symmetrically spaced at a certain distance equal to the width of the rail.

[0025] The underground caverns of a single pumped-storage power station in my country are characterized by hard and dense rock, short single cave length, and few bad geology. Before 2019, hand pneumatic drills, rock drilling trolleys, climbing tank methods, scattered wells and reverse well drilling machines were mainly used. During the construction of the above equipment, there were problems such as poor construction environment and slow construction progress. Therefore, in recent years, shield drilling construction has been adopted in the construction of pumped-storage power station tunnels due to the high efficiency of shield construction. In order to match the high efficiency of shield drilling construction, slag is discharged by battery vehicles along the tunnel track. Therefore, it is necessary to configure a track for rapid installation and disassembly in the tunnel. The main factor affecting the rapid installation and disassembly of the track is the sleeper on the track. Because the sleeper on the track cannot be quickly installed and disassembled, the track cannot be quickly installed and disassembled. In order to solve the problem of rapid installation and disassembly of the track, the utility model uses the strength and rigidity of the H-shaped steel 1 to process its shape into an inverted trapezoidal cross-section, that is, a shape that is wide at the top and narrow at the bottom, so that it can be fixed in the tunnel and fit firmly with the bedrock surface. As the main load-bearing member, the H-shaped steel 1 plays the role of bearing the upper construction load. Two groups of first angle steels 2 are respectively fixed at both ends of the H-shaped steel 1, and two rails are respectively clamped in the two groups of first angle steels 2. The two groups of first angle steels 2 limit the lateral displacement of the upper rails to fix the rails. A plurality of inverted trapezoidal H-shaped steels 1 are evenly spaced and clamped in the tunnel. Two groups of first angle steels 2 are fixed at both ends of the H-shaped steel 1. One group of first angle steels 2 is composed of two first angle steels 2 symmetrically fixed on the H-shaped steel 1 at a certain distance. Further, the first angle steel 2 is welded and fixed at both ends of the H-shaped steel 1. In order to firmly fix the first angle steel on the H-shaped steel 1, a double-sided angle welding fixing form is adopted. Furthermore, the two first angle steels 2 are symmetrically spaced at a certain distance equal to the width of the rail 5, and the symmetrical spacing at a certain distance can also be adjusted according to the position of the upper rail. Therefore, the rail 5 is clamped into the two first angle steels 2 to form the circular shield tunnel track of the pumped storage power station. Insert the sleeper consisting of H-shaped steel 1 and the first angle steel 2 fixed on the H-shaped steel into the tunnel, and then insert the rail 5 between the two first angle steels 2, so that the track of the circular shield tunnel of the pumped storage power station can be quickly installed. And the disassembly of the sleeper consisting of H-shaped steel 1 and the first angle steel 2 is the same as the installation. It is only necessary to pry out the rail 5 from the two first angle steels, and then pry out the H-shaped steel 1, and the rapid disassembly of the track in the tunnel can be completed. The rapid installation and disassembly function of the utility model can match the high efficiency of shield construction, and solve the problem of rapid slag discharge in shield drilling construction through the rapid installation and disassembly of the track.

[0026] Further, if Figure 1 to Figure 2As shown, it also includes a pressing plate 3, a first through hole is set at one end of the pressing plate 3, and second through holes 4 are set at both ends of the H-shaped steel 1. The second through holes 4 are on the outside of the first angle steel 2. Bolts pass through the first through hole and the second through hole 4 to press the pressing plate on the edge of one side of the bottom of the rail 5. Two second angle steels 6 are fixed at a certain distance from the two second through holes 4 at both ends of the H-shaped steel 1. The second angle steel 6 is on the outside of the second through hole 4. Further, the second angle steel 6 is welded and fixed to the two ends of the H-shaped steel 1. The second angle steel 6 and the second through hole 4 are separated by a certain distance equal to the width of the rail 5. On the basis of setting two groups of first angle steels 1, a clamping mechanism for the outer rail composed of a pressing plate and a second angle steel 6 can also be set on the outside of the two groups of first angle steels. Since the service life of the two outer rails is short and they are removed in time, convenient bolt pressing plates are used to fix the inner sides of the two outer rails, and a second through hole is opened on the H-shaped steel. The pressing plate is fixed to the H-shaped steel by bolt connection. The bolts play a role of quick disassembly. The outer sides of the two outer rails are fixed by the second angle steel 6. After the two outer rails 5 are removed, the two outermost second angle steels 6 can be used as treads later.

[0027] Example 1

[0028] The utility model discloses a circular shield tunnel inner track of a pumped storage power station. In engineering application, in order to match the high-efficiency operation of TBM, two steel rails need to be arranged, such as Figure 1 to Figure 2 As shown, the track includes the sleepers, the track also includes rails 5, the sleepers include a plurality of H-shaped steels 1, and the plurality of H-shaped steels 1 are evenly spaced and inserted into the tunnel 7. In this embodiment, the model of the H-shaped steel 1 is H150. Two rails 5 are respectively inserted into two groups of first angle steels 2 provided on each H-shaped steel.

[0029] Example 2

[0030] The utility model discloses a circular shield tunnel inner track for a pumped storage power station. In engineering applications, in order to match the high-efficiency operation of the TBM, four rails need to be arranged, of which the two middle rails have a service life of about one year and are finally removed at the end, and the two outer rails have a service life of about one week and are removed in time. Figure 1 to Figure 2 As shown, the track includes the sleepers mentioned above, and the track also includes two inner rails 5 and two outer rails 5, the inner track gauge is 832mm, and the distance between the two outer rails is 1701mm. A plurality of H-shaped steels 1 are inserted into the tunnel at even intervals, the two inner rails 5 are inserted into the two groups of first angle steels 2 provided on each H-shaped steel 1, and the two outer rails 5 are inserted between the two groups of second angle steels 6 provided on each H-shaped steel 1 and the pressing sheet 3.

[0031] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A sleeper in a circular shield tunnel of a pumped storage power station, characterized in that: It comprises an H-shaped steel (1) and a first angle steel (2), wherein the cross section of the H-shaped steel (1) is an inverted trapezoid that is wide at the top and narrow at the bottom, and two first angle steels (2) are symmetrically fixed at one end of the H-shaped steel (1) at a certain distance, and the two first angle steels (2) form a group, and the two groups of first angle steels (2) are respectively fixed at both ends of the H-shaped steel (1).

2. The circular shield tunnel inner sleeper of a pumped storage power station according to claim 1, characterized in that: The first angle steel (2) is welded and fixed to both ends of the H-shaped steel (1).

3. The circular shield tunnel inner sleeper of a pumped storage power station according to claim 2, characterized in that: The two first angle steels (2) are symmetrically spaced at a distance equal to the width of the rail.

4. The circular shield tunnel inner sleeper of a pumped storage power station according to claim 1, characterized in that: It also comprises a pressing sheet (3), a first through hole being arranged at one end of the pressing sheet (3), second through holes (4) being arranged at both ends of the H-shaped steel (1), the second through holes (4) being arranged outside the first angle steel (2), bolts passing through the first through holes and the second through holes (4) press the pressing sheet (3) against the edge of one side of the bottom of the rail (5), and two second angle steels (6) being fixed at a certain distance from the two ends of the H-shaped steel (1) and the two second through holes (4), the second angle steels (6) being arranged outside the second through holes (4).

5. The circular shield tunnel inner sleeper of a pumped storage power station according to claim 4, characterized in that: The second angle steel (6) is welded and fixed to both ends of the H-shaped steel (1), and the second angle steel (6) and the second through hole (4) are spaced a certain distance equal to the width of the rail (5).

6. A track, characterized in that: The track comprises the sleepers and rails (5) in the circular shield tunnel of the pumped storage power station as described in any one of claims 1 to 3, the sleepers comprising a plurality of H-shaped steels (1), the plurality of H-shaped steels (1) being inserted into the tunnel (7) at even intervals, and the two rails (5) being inserted into two groups of first angle steels (2) provided on each H-shaped steel, respectively.

7. A track, characterized in that: The track comprises the rail sleeper in the circular shield tunnel of the pumped storage power station as claimed in claim 5, an inner rail (5) and an outer rail (5), a plurality of H-shaped steels (1) are inserted into the tunnel at even intervals, the two inner rails (5) are respectively inserted into two groups of first angle steels (2) provided on each H-shaped steel (1), and the two outer rails (5) are respectively inserted between two groups of second angle steels (6) provided on each H-shaped steel (1) and the pressing sheet (3).

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