System and method for dynamically regulating and controlling gauge size of platform wall

Abstract

The invention provides a system and method for dynamically regulating and controlling the limit size of a platform wall, by arranging a pull rope between the platform wall and a platform canopy column foundation, the problem of limit invasion in the operation and maintenance process of the platform wall is solved more conveniently, the system comprises a foundation pit, the pull rope, the canopy column foundation and the platform wall, and the canopy column foundation is arranged at the bottom in the foundation pit; the platform wall is arranged at the bottom in the foundation pit and located on the side, close to the train track, of the canopy column foundation. A concrete cushion layer is arranged at the bottom of the platform wall, a cushion plate assembly is arranged on the upper portion of the platform wall in the thickness direction, one end of the pull rope is fixed to the canopy column foundation, and the other end of the pull rope penetrates through the cushion plate assembly and then is fixedly connected to the outer side of the platform wall. The foundation pit is filled with backfill soil, and a platform plate is assembled at the top end of the foundation pit.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed railway station buildings, in particular to the technical field of train platforms, and specifically to a system and method for dynamically controlling the limit dimensions of platform walls. Background Art

[0002] As we all know, the platform is an important part of the railway station building. The platform in the building station is a platform for passengers to get on and off the train or load and unload goods. There are two types: passenger platform and cargo platform. The passenger platform is a platform set up for passengers to get on and off the train and load and unload luggage and mail. According to the height of the platform surface above the top surface of the adjacent track, it can be divided into low platform, general platform and high platform. At present, it is stipulated that the platform surface is 300 mm higher than the top surface of the adjacent track for low platform, 500 mm higher for general platform, and 1100 mm higher for high platform. The length of the passenger platform is generally 400 to 500 meters; the platform for short-distance and suburban passenger trains should be determined according to the actual length of the train that stops, generally not less than 300 meters; stations with less passenger flow can be shortened appropriately. The platform is on the side close to the train track. The platform wall is often cast in concrete.

[0003] Nowadays, the construction of large high-speed railway stations has entered the fast lane. During the operation and maintenance of the platform wall, due to the lateral earth pressure of the backfill soil, the vertical load of the platform crowd, and the large difference between the train track and the platform wall load, the platform has uneven settlement, resulting in the platform wall invading the railway construction limit (hereinafter referred to as "limit intrusion") and other phenomena. The inclination of the platform wall will cause a height difference between the platform plane and the parked car body, which will cause inconvenience to the passage of passengers. In serious cases, there are safety hazards such as scratches between the high-speed rail car body and the platform. In order to solve this problem during the operation and maintenance of the traditional platform wall, the methods generally adopted are partial chiseling, extension of the platform wall cap stone or demolition and reconstruction. These methods either cannot fundamentally solve the problem of the current platform wall intrusion, or the construction cost is high. In addition, these methods require construction personnel to enter the train track to work, which has certain safety hazards and will also affect the normal operation of the train. Summary of the invention

[0004] The present invention provides a system and method for dynamically adjusting the limit size of a platform wall, which can more conveniently solve the limit intrusion problem during the operation and maintenance of the platform wall by arranging a pull rope between the platform wall and the platform canopy column foundation.

[0005] The present invention is achieved through the following technical solutions: A system for dynamically controlling the limit size of a platform wall, comprising a foundation pit, a pull rope, a canopy column foundation and a platform wall, wherein the canopy column foundation is arranged at the bottom of the foundation pit, and the platform wall is arranged at the bottom of the foundation pit at a position close to a side of the canopy column foundation close to a train track; A concrete cushion is provided at the bottom of the platform wall, and a pad assembly is provided at the upper part of the platform wall along the thickness direction. One end of the pull rope is fixed to the canopy column foundation, and the other end passes through the pad assembly and is fixedly connected to the outer side of the platform wall; The foundation pit is filled with backfill soil and a platform slab is installed on the top of the foundation pit.

[0006] Furthermore, an isolation tube is provided on the outer side of the pull rope.

[0007] Furthermore, the pad assembly includes a support column embedded in the platform wall, and pad blocks are respectively arranged at the left and right ends of the support column, and the two pad blocks are respectively located at the inner and outer sides of the platform wall; The support column is provided with an oil filling hole and an adjustment channel, and one end of the oil filling hole is connected to the isolation pipe through a metal hose; One end of the pull rope passes through the adjustment channel, extends to the outside of the platform wall, and is fixed by an anchor assembly.

[0008] Furthermore, the isolation pipe is composed of multiple sections of stainless steel casing connected into one body through expansion joints.

[0009] Furthermore, the front section of the adjustment channel is a conical channel, and the anchoring assembly includes a plurality of clips, which are assembled into a sleeve structure with a conical surface on the outside, and the axial hole of the anchoring assembly is used to clamp the end of the pull rope.

[0010] Furthermore, the outer ends of the plurality of clips are connected in series through a ring, and the inner arc surface of the clip is provided with a plurality of protrusions.

[0011] A method for dynamically adjusting the limit size of a platform wall, using the system for dynamically adjusting the limit size of a platform wall according to the present invention to dynamically adjust the limit size of a platform wall. It includes the following steps: S01, prefabricated pull rope and pad assembly; S02. Carry out foundation construction in the foundation pit and set up a concrete cushion layer; S03. Construct the canopy column foundation in the foundation pit; S04. Build a steel mesh on the concrete cushion layer according to the atlas or relevant specifications, and embed the pad assembly in the steel mesh, and then pour concrete to form the platform wall. The pad blocks are located on the inner and outer sides of the platform wall respectively; S05. Fix one end of the pull rope on the foundation of the canopy column, and pass the other end through the pad assembly and then fix it on the outside of the platform wall, so that the pull rope is in a taut state; S06. Construct the canopy column on the canopy column foundation, then backfill the foundation pit with backfill soil and assemble the platform slab on the top of the foundation pit; S07. During the use of the platform, the taut pull rope limits the intrusion of the platform wall. When the platform wall intrudes, the tensioning tool is positioned on the outer side of the platform wall so that the movable end of the tensioning tool is connected to the end of the pull rope located on the outer side of the platform wall. By tensioning the pull rope, a reaction force is generated on the platform wall, the intruding platform wall is pulled back to the appropriate position and the pull rope is fixed.

[0012] Furthermore, in step S03, when pouring the canopy column foundation in the foundation pit, the pull ring is pre-buried in the canopy column foundation; In step S05, one end of the pull rope is fixedly connected to the hook, so that one end of the pull rope is connected to the pull ring through the hook.

[0013] Furthermore, in step S05, an isolation tube is sleeved on the outside of the pull rope.

[0014] Furthermore, in step S01, two pad blocks with a size of 250 mm×250 mm×15 mm are respectively welded at two ends of the support column.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a system for dynamically adjusting the limit size of the platform wall. By setting a pull rope between the platform wall and the foundation of the platform canopy column, the pull rope is in a taut state. During daily operation, the tension of the pull rope offsets the external forces such as the lateral earth pressure, thereby greatly reducing the degree of intrusion of the platform wall. When the platform wall intrudes and needs regular maintenance, the pull rope is adjusted to reset the platform wall, thereby more conveniently solving the intrusion problem during the operation and maintenance of the platform wall. The present invention provides a platform constructed by a method for dynamically adjusting the limit size of the platform wall, which can conveniently and quickly solve the limit intrusion problem during the operation and maintenance of the platform wall, and the construction is convenient; 2. An isolation tube is set on the outside of the pull rope to prevent soil from eroding the pull rope. When adjustment is needed, it is convenient to move and adjust the pull rope; the isolation tube is connected by multiple stainless steel casings through expansion joints to avoid damage to the isolation tube when the pull rope is tensioned; 3. The pad assembly includes a support column and two pad blocks, thereby improving the fixing strength of the pull rope on the platform wall and avoiding the problem of the pull rope being directly connected to the platform wall and causing damage to the wall; The support column is provided with an oil filling hole, one end of which is connected to the isolation pipe through a metal hose. When the platform wall needs to be adjusted, oil is injected into the isolation pipe through the oil filling hole to reduce the friction between the isolation pipe and the pull rope, making the tensioning operation easier. 4. The front section of the adjustment channel is a tapered channel. The anchoring assembly includes multiple clips. When the pull rope is tensioned, the clips surround the pull rope, and then the clips are embedded in the tapered channel. The anchoring assembly and the tapered channel are self-locking, thereby fixing the pull rope. This design can firmly fix the pull rope and facilitate the adjustment of the pull rope, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the system for dynamically adjusting the limit size of the platform wall according to this embodiment; Figure 2 This is a schematic diagram of the connection between the canopy foundation and the platform wall in this embodiment; Figure 3 This is a schematic diagram of the connection between the canopy foundation and the pull rope described in this embodiment; Figure 4 This is a schematic diagram of the anchor assembly and the spacer assembly described in this embodiment; Figure 5 This is a schematic diagram of the anchoring assembly described in this embodiment; In the figure: 1. foundation pit, 2. pull rope, 3. canopy column foundation, 4. platform wall, 5. pull ring, 6. concrete cushion, 7. cushion block assembly, 71. oil filling hole, 72. adjustment channel, 8. isolation pipe, 9. anchor assembly, 91. clip, 10. platform plate. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0018] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or coupling. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0019] like Figure 1-5As shown, this embodiment discloses a system for dynamically controlling the limit size of the platform wall 4, including a foundation pit 1, a pull rope 2, a canopy column foundation 3 and a platform wall 4. The foundation pit 1 is constructed according to the platform design drawings, and the canopy column foundation 3 is cast at the bottom of the foundation pit 1. The canopy column foundation 3 is used for the later installation of the canopy column and the canopy. A pull ring 5 is pre-buried at a certain distance in the canopy column foundation 3 (the design size is selected according to the actual scale of the platform) to facilitate the subsequent connection of the pull rope 2. A concrete cushion layer 6 is first cast at the bottom of the foundation pit 1 at a position close to the side of the train track of the canopy column foundation 3, and then a steel frame is built on the concrete cushion layer 6 to cast concrete to form the platform wall 4. Due to the long length of the platform, the platform wall 4 is often cast in blocks (the length of each platform wall 4 is generally 15 to 30 meters), and multiple platform walls 4 are arranged to form the wall system of the platform. A pad block assembly 7 is embedded in the platform wall 4, and the number of pad block assemblies 7 corresponds to that of the pull rings 5. The pad plate assembly includes a support column embedded in the platform wall 4, and pad plates are welded on the left and right ends of the support column. The specifications of the pad plates are 250mm×250mm×15mm. The two pad plates are respectively located on the inner and outer sides of the platform wall 4, thereby increasing the firmness of the embedded pad block assembly 7.

[0020] An oil filling hole 71 and an adjustment channel 72 are reserved on the support column. A steel wire rope is used for the pull rope 2. One end of the pull rope 2 is fixedly connected to a hook, and is connected to the pull ring 5 of the canopy column foundation 3 through the hook. In order to protect the pull rope 2 from being eroded by soil moisture, an isolation tube 8 is sleeved on the outside of the pull rope 2, and the gap is controlled to be 3mm. In this embodiment, the isolation tube 8 is connected as a whole by multiple sections of stainless steel casings through expansion joints. The expansion joint can alleviate the tensile deformation in the soil. One end of the oil filling hole 71 reserved on the support column is connected to the isolation tube 8 through a metal hose, which is convenient for oiling the isolation tube 8 through the oil filling hole 71. The other end of the pull rope 2 passes through the adjustment channel 72 and extends to the outside of the platform wall 4 and is fixed by the anchor assembly 9. In this embodiment, when the platform wall 4 intrudes, the pull rope 2 needs to be tensioned. Therefore, in order to facilitate the fixing of the pull rope 2, the front section of the adjustment channel 72 is a tapered channel, and the anchor assembly 9 includes three clips 91. The inner side of the clip 91 is an inner arc surface and the outer side is a tapered surface. The three clips 91 are assembled into a sleeve structure with a tapered surface on the outer side. The axial center hole of the anchor assembly 9 is used to clamp the end of the pull rope 2. In order to facilitate the connection as one, the outer ends of the three clips 91 are connected in series through a ring, and the inner arc surface of the clip 91 is processed with multiple protrusions, thereby increasing the friction with the pull rope 2. When the anchor assembly 9 fixes the pull rope 2, one end of the pull rope 2 is passed through the adjustment channel 72 and the axial center hole of the anchor assembly 9 from the inner side of the platform wall 4 in sequence, and then the pull rope 2 is tensioned, and the clip 91 of the anchor assembly 9 is inserted into the tapered channel of the adjustment channel 72. At the same time, the inner side of the clip 91 tightly clamps the pull rope 2, and under the reaction force of the pull rope 2, the clip is self-locked in the tapered channel, and the pull rope 2 is tightly fixed in the adjustment channel 72. When the above components are installed, the foundation pit 1 is filled with backfill soil and the platform plate 10 is installed on the top of the foundation pit 1.

[0021] This embodiment also discloses a method for dynamically adjusting the limit size of the platform wall 4, which mainly includes construction steps and later maintenance steps. The above-mentioned system for dynamically adjusting the limit size of the platform wall 4 is used to dynamically adjust the limit size of the platform wall 4, which includes the following steps: S01, prefabricated draw rope 2, pad assembly; Among them, when making the pad assembly, two pad plates with specifications of 250mm×250mm×15mm are respectively welded at both ends of the support column; S02, carrying out foundation construction in the foundation pit 1 and setting a concrete cushion layer 6; S03, constructing a canopy column foundation 3 in the foundation pit 1, and pre-burying the pull ring 5 in the canopy column foundation 3; S04. Build a steel mesh on the concrete cushion layer 6 according to the atlas or relevant specifications, and embed the pad assembly in the steel mesh. Then pour concrete to form the platform wall 4; S05, one end of the pull rope 2 is fixedly connected to the hook, so that one end of the pull rope 2 is connected to the pull ring 5 through the hook, so that one end of the pull rope 2 is fixed on the canopy column foundation 3, and the other end passes through the pad assembly and is fixedly connected to the outer side of the platform wall 4 through the anchor assembly 9, so that the pull rope 2 is in a taut state; S06, constructing a canopy column on the canopy column foundation 3, then backfilling the foundation pit 1 with backfill soil and assembling a platform slab 10 at the top of the foundation pit 1; S07. During the use of the platform, the taut pull rope 2 limits the intrusion of the platform wall 4. When the platform wall 4 intrudes, first inject butter into the isolation tube 8 through the oil filling hole 71, and position the tensioning tool on the outer side of the platform wall 4, such as a conventional tensioning jack, so that the movable end of the tensioning tool is connected to the end of the pull rope 2 located on the outside of the platform wall 4, and the base of the tensioning tool is fixed to the outer side of the platform wall 4. By tensioning the pull rope 2, the tensioning tool generates a reaction force on the platform wall 4, so that the intruding platform wall 4 is pulled back to the appropriate position and the pull rope 2 is fixed through the anchor assembly 9.

[0022] In this embodiment, a pull rope 2 is set between the platform wall 4 and the platform canopy column foundation 3. The pull rope 2 is in a taut state. During daily operation, the tension of the pull rope 2 offsets external forces such as lateral soil pressure, thereby greatly reducing the degree of intrusion of the platform wall 4. When the platform wall 4 intrudes and requires regular maintenance, the pull rope 2 is adjusted to reset the platform wall 4, thereby more conveniently solving the intrusion problem during the operation and maintenance of the platform wall 4.

Claims

1. A system for dynamically adjusting the limit size of platform walls, characterized in that: It includes a foundation pit, a pull rope, a canopy column foundation and a platform wall, wherein the canopy column foundation is arranged at the bottom of the foundation pit, and the platform wall is arranged at the bottom of the foundation pit at a position close to the train track side of the canopy column foundation; A concrete cushion is provided at the bottom of the platform wall, and a pad assembly is provided at the upper part of the platform wall along the thickness direction. One end of the pull rope is fixed to the canopy column foundation, and the other end passes through the pad assembly and is fixedly connected to the outer side of the platform wall; The foundation pit is filled with backfill soil and a platform slab is installed on the top of the foundation pit.

2. The system for dynamically controlling the platform wall limit size according to claim 1 is characterized in that: An isolation tube is sleeved on the outer side of the pull rope.

3. The system for dynamically controlling the platform wall limit size according to claim 2 is characterized in that: The pad assembly includes a support column embedded in the platform wall, and pad blocks are respectively arranged at the left and right ends of the support column, and the two pad blocks are respectively located at the inner and outer sides of the platform wall; The support column is provided with an oil filling hole and an adjustment channel, and one end of the oil filling hole is connected to the isolation pipe through a metal hose; One end of the pull rope passes through the adjustment channel, extends to the outside of the platform wall, and is fixed by an anchor assembly.

4. The system for dynamically controlling the platform wall limit size according to claim 2 is characterized in that: The isolation pipe is composed of multiple sections of stainless steel casing pipes connected into one body through expansion joints.

5. The system for dynamically adjusting the platform wall limit size according to claim 3 is characterized in that: The front section of the adjustment channel is a tapered channel, and the anchoring assembly includes a plurality of clips, which are assembled into a sleeve structure with a tapered outer surface, and the axial hole of the anchoring assembly is used to clamp the end of the pull rope.

6. The system for dynamically adjusting the platform wall limit size according to claim 5 is characterized in that: The outer ends of the plurality of clips are connected in series through a ring, and the inner arc surface of the clip is provided with a plurality of protrusions.

7. A method for dynamically adjusting the limit size of a platform wall, characterized in that: The platform wall limit size is dynamically adjusted by using the platform wall limit size dynamic control system as described in any one of claims 1 to 6. It includes the following steps: S01, prefabricated pull rope and pad assembly; S02. Carry out foundation construction in the foundation pit and set up a concrete cushion layer; S03. Construct the canopy column foundation in the foundation pit; S04. Build a steel mesh on the concrete cushion layer according to the atlas or relevant specifications, and embed the pad assembly in the steel mesh, and then pour concrete to form the platform wall. The pad blocks are located on the inner and outer sides of the platform wall respectively; S05. Fix one end of the pull rope on the foundation of the canopy column, and pass the other end through the pad assembly and then fix it on the outside of the platform wall, so that the pull rope is in a taut state; S06. Construct the canopy column on the canopy column foundation, then backfill the foundation pit with backfill soil and assemble the platform slab on the top of the foundation pit; S07. During the use of the platform, the taut pull rope limits the intrusion of the platform wall. When the platform wall intrudes, the tensioning tool is positioned on the outer side of the platform wall so that the movable end of the tensioning tool is connected to the end of the pull rope located on the outer side of the platform wall. By tensioning the pull rope, a reaction force is generated on the platform wall, the intruding platform wall is pulled back to the appropriate position and the pull rope is fixed.

8. The method for dynamically adjusting the platform wall limit size according to claim 7 is characterized in that: In step S03, when pouring the canopy column foundation in the foundation pit, the pull ring is pre-buried in the canopy column foundation; In step S05, one end of the pull rope is fixedly connected to the hook, so that one end of the pull rope is connected to the pull ring through the hook.

9. The method for dynamically adjusting the platform wall limit size according to claim 7, characterized in that: In step S05, an isolation tube is sleeved on the outside of the pull rope.

10. The method for dynamically adjusting the platform wall limit size according to claim 7, characterized in that: In step S01, two pad blocks with specifications of 250 mm×250 mm×15 mm are respectively welded at two ends of the support column.

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