Movable vehicle staggering platform in TBM tunnel

Abstract

The utility model discloses a TBM (tunnel boring machine) in-tunnel movable vehicle-staggering platform, which comprises two road tips, two variable slope sections, two buffer sections, two turnout sections and a vehicle-staggering section, the road tips, the variable slope sections, the buffer sections, the turnout sections and the vehicle-staggering section are sequentially connected end to end, and the variable slope sections, the buffer sections, the turnout sections and the vehicle-staggering section are formed by connecting a plurality of rectangular frame platforms. The rectangular frame platform is formed by connecting a plurality of steel wheels, bent rails, H-shaped steel, steel plates and steel rails. The movable train staggering platform in the TBM tunnel is simple in structure, convenient to use and capable of effectively improving the horizontal transportation efficiency of marshalling trains in the tunnel, shortening the time of stopping a TBM to wait for deslagging of the marshalling trains and improving the tunneling construction efficiency of the TBM.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel engineering construction, and in particular relates to a movable vehicle passing platform in a TBM tunnel. Background Art

[0002] In the construction of tunnel projects such as water conservancy and hydropower, municipal engineering, highways, and railways, due to the long excavation distance of TBM tunnels, it is necessary to lay rail-mounted transportation tracks and use marshaled trains to transport tunnel slag, construction personnel, and materials. As the tunnel excavation distance increases, the horizontal transportation time of the marshaled train also increases, and the time for the TBM to stop and wait for the marshaled train to discharge slag is also longer. In particular, when the tunnel excavation length exceeds 1.5km, the impact on reducing the TBM excavation efficiency will be more obvious. Therefore, in order to shorten the TBM's downtime waiting for the marshaled train to discharge slag, improve the marshaled train's slag discharge efficiency, and thus improve the TBM excavation construction progress, it is necessary to install a movable staggered platform in the tunnel. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a movable vehicle-passing platform which has a simple structure and is easy to use, can effectively improve the horizontal transportation efficiency of tunnel marshaling trains, shorten the TBM shutdown time waiting for marshaling trains to discharge slag, and improve the TBM excavation construction efficiency.

[0004] The technical solution of the utility model is: a movable vehicle-passing platform in a TBM tunnel, characterized in that it comprises: two track points, two slope-changing sections, two buffer sections, two turnout sections, and a vehicle-passing section, wherein the track points, slope-changing sections, buffer sections, turnout sections, and vehicle-passing sections are sequentially connected end to end, the track points are connected to one end of a steel rail on the slope-changing section, the other end of a steel rail on the slope-changing section is connected to one end of a steel rail on the buffer section, the other end of a steel rail on the buffer section is connected to one end of a curved rail on the turnout section, and the other end of a curved rail on the turnout section is connected to the end of a steel rail on the vehicle-passing section; the buffer section comprises: a plurality of steel wheels, H-shaped steels, steel plates, and steel rails, and a plurality of the H-shaped steels and steel plates are connected to form a rectangular The frame platform comprises: a plurality of steel wheels connected to the bottom of the rectangular frame platform, two of the steel rails are arranged on the top of the rectangular frame platform, and the two steel rails are parallel to each other; the turnout section comprises: a plurality of steel wheels, curved rails, a single symmetrical turnout mechanism, and a rectangular frame platform, the plurality of steel wheels connected to the bottom of the rectangular frame platform, four of the curved rails and the single symmetrical turnout mechanism are arranged on the top of the rectangular frame platform, and the four curved rails are connected to the single symmetrical turnout mechanism and arranged in a V shape; the passing section comprises: a plurality of steel wheels, four steel rails, and a rectangular frame platform, the plurality of steel wheels connected to the bottom of the rectangular frame platform, four of the steel rails are arranged on the top of the rectangular frame platform, and the four steel rails are parallel to each other.

[0005] Furthermore, the slope changing section, the buffer section, the switch section and the passing section are fixedly connected via connecting pins.

[0006] Furthermore, the length of the slope changing section is 15m, the slope is 5.24%, the length of the buffer section is 3m, the length of the switch section is 12.5m, and the turning radius of the curved track of the switch section is 50m.

[0007] The beneficial effects of the utility model are as follows: a movable passing platform for TBM in a tunnel of the utility model is formed into a movable rectangular frame platform by using a plurality of steel wheels, curved rails, H-shaped steels, steel plates and steel rails, and then a connecting pin is used to connect the plurality of rectangular frame platforms, thereby realizing the free movement of the passing platform in the tunnel, and improving the installation efficiency of the passing platform and the efficiency of TBM excavation construction; by using a single symmetrical turnout mechanism in the turnout section to branch four curved rails into a V shape, the safety and efficiency of the passing operation are guaranteed while meeting the passing requirements of the train assembly; in summary, a movable passing platform for TBM in a tunnel of the utility model has a simple structure and is easy to use, can effectively improve the horizontal transportation efficiency of the tunnel train assembly, shorten the TBM shutdown time waiting for the train assembly to discharge slag, and improve the TBM excavation construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 The utility model is a structural schematic diagram of a movable vehicle-passing platform in a TBM tunnel.

[0010] In the figure: 1-steel wheel, 2-curved rail, 3-H-shaped steel, 4-steel plate, 5-rail, 6-connecting pin. DETAILED DESCRIPTION

[0011] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the term "connection" 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, a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0012] like Figure 1As shown, a movable passing platform in a TBM tunnel comprises: two track points, two slope-changing sections, two buffer sections, two turnout sections, and a passing section, wherein the track points, slope-changing sections, buffer sections, turnout sections, and passing sections are sequentially connected end to end, the track point is connected to one end of a rail 5 (P43 rail) on the slope-changing section, the other end of the rail 5 on the slope-changing section is connected to one end of the rail 5 on the buffer section, the other end of the rail 5 on the buffer section is connected to one end of a curved rail 2 (P43 rail) on the turnout section, and the other end of the curved rail 2 on the turnout section is connected to the end of the rail 5 on the passing section; the buffer section comprises: a plurality of steel wheels 1, H-shaped steels 3 (H200 steel), steel plates 4 (14 mm thick steel plates), rails 5, a plurality of H-shaped steels 3 and steel plates 4 The plurality of steel wheels 1 are connected to form a rectangular frame platform, wherein the plurality of steel wheels 1 are connected to the bottom of the rectangular frame platform, and the two steel rails 5 are arranged on the top of the rectangular frame platform, and the two steel rails 5 are parallel to each other; the turnout section comprises: a plurality of steel wheels 1, curved rails 2, a single symmetrical turnout mechanism, and a rectangular frame platform, wherein the plurality of steel wheels 1 are connected to the bottom of the rectangular frame platform, and the four curved rails 2 and the single symmetrical turnout mechanism are arranged on the top of the rectangular frame platform, and the four curved rails 2 are connected to the single symmetrical turnout mechanism and are arranged in a V shape; the passing section comprises: a plurality of steel wheels 1, four steel rails 5, and a rectangular frame platform, wherein the plurality of steel wheels 1 are connected to the bottom of the rectangular frame platform, and the four steel rails 5 are arranged on the top of the rectangular frame platform, and the four steel rails 5 are parallel to each other.

[0013] Preferably, the slope changing section, the buffer section, the switch section and the passing section are fixedly connected via a connecting pin 6.

[0014] Preferably, the length of the slope changing section is 15 m, the slope is 5.24%, the length of the buffer section is 3 m, the length of the switch section is 12.5 m, and the turning radius of the curved track 2 of the switch section is 50 m.

[0015] When in use, two buffer sections, two switch sections, and one passing section are placed on the original single-row locomotive track of the tunnel and fixed firmly, and then the buffer section is connected and fixed with the slope-changing section, and the slope-changing section is connected and fixed with the track tip, and the track tip is connected and fixed with the single-row locomotive track. Before entering the slope-changing section, the track tip needs to be used to complete the conversion from the original low-sleeper track to the passing platform rail 5, and the buffer section is entered after the slope is changed, and the switch section is entered after effective buffering. The switch section is provided with a single-type symmetrical switch mechanism, which includes: a switch, a connecting component, a frog and a guard rail. The switch includes a basic rail, a point rail and a switch machine. When the locomotive needs to change tracks, the switch machine is operated to make the point rail The locomotive vehicle moves, enters the connection part, and transitions to the switch and guardrail unit along the guide curve track. The guardrail unit includes a fixed switch center, wing rails and guardrails. Its function is to protect the wheels to safely pass the intersection of the two tracks. Then the switch machine is operated to move the point rail. After the locomotive passes the switch section for line conversion, it can enter the passing section to complete the passing of two trains. The mobile passing platform is designed to be symmetrical, that is, a track point is arranged at each end of the mobile passing platform, and a slope change section is arranged at each end. If one end is uphill, the other end is downhill. A buffer section is arranged at each end, and a switch section is arranged at each end. One end is for entering the passing car, and the other end is for the passing car to complete the exit.

[0016] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and various changes can be made thereto within the knowledge scope of those skilled in the art.

Claims

1. A movable vehicle-passing platform in a TBM tunnel, characterized in that: include: Two track points, two slope-changing sections, two buffer sections, two turnout sections, and a passing section, wherein the track points, slope-changing sections, buffer sections, turnout sections, and passing sections are connected end to end in sequence, the track points are connected to one end of a steel rail (5) on the slope-changing section, the other end of the steel rail (5) on the slope-changing section is connected to one end of the steel rail (5) on the buffer section, the other end of the steel rail (5) on the buffer section is connected to one end of a curved rail (2) on the turnout section, and the other end of the curved rail (2) on the turnout section is connected to the end of the steel rail (5) on the passing section; the buffer section comprises: a plurality of steel wheels (1), H-shaped steels (3), steel plates (4), and steel rails (5), wherein a plurality of the H-shaped steels (3) and the steel plates (4) are connected to form a rectangular frame platform, the plurality of steel wheels (1) and the rectangular frame The bottom of the platform is connected, two of the steel rails (5) are arranged on the top of the rectangular frame platform, and the two steel rails (5) are parallel to each other; the turnout section comprises: a plurality of steel wheels (1), a curved rail (2), a single symmetrical turnout mechanism, and a rectangular frame platform; the plurality of steel wheels (1) are connected to the bottom of the rectangular frame platform, four of the curved rails (2) and the single symmetrical turnout mechanism are arranged on the top of the rectangular frame platform, and the four curved rails (2) are connected to the single symmetrical turnout mechanism and arranged in a V shape; the passing section comprises: a plurality of steel wheels (1), four steel rails (5), and a rectangular frame platform; the plurality of steel wheels (1) are connected to the bottom of the rectangular frame platform, the four of the steel rails (5) are arranged on the top of the rectangular frame platform, and the four steel rails (5) are parallel to each other.

2. A movable vehicle-passing platform in a TBM tunnel according to claim 1, characterized in that: The slope changing section, the buffer section, the switch section and the passing section are fixedly connected via a connecting pin (6).

3. The movable vehicle-passing platform in a TBM tunnel according to claim 1, characterized in that: The length of the slope changing section is 15 m, the slope is 5.24%, the length of the buffer section is 3 m, the length of the switch section is 12.5 m, and the turning radius of the curved track (2) of the switch section is 50 m.

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