An orbital slab limiting device with a mechanical state monitoring function and a construction method

Abstract

The present invention provides an orbital slab limiting device with a mechanical state monitoring function and a construction method. The device includes: a foundation mechanism, an anti-floating mechanism, an anti-side shift mechanism, a pressure sensing mechanism, a displacement sensing mechanism, and a data processing mechanism. This device has functions such as data display, automatic alarm, and data transmission. The construction method realizes precise monitoring of the construction state through precise measurement of the pre-pressure of the limiting device before pouring, the upward buoyancy and displacement of the orbital slab during pouring, ensures the quality of the pouring construction, reduces the remeasurement process of the orbital slab, forms a brand-new ballastless orbital slab limiting construction method, effectively improves the pouring construction efficiency, and promotes the development of ballastless track construction towards the intelligent direction.

Description

Technical Field

[0001] The present invention relates to the technical field of track structure construction, and in particular to a track slab limiting device with a mechanical state monitoring function and a construction method thereof. Background Art

[0002] With the vigorous development of China's high-speed railway industry, China has developed the CRTS III type slab ballastless track with independent intellectual property rights. At present, this track structure has become the preferred structure type for China's high-speed railway construction and "going global" projects. During the construction process of the CRTS III type slab ballastless track structure, the elevation control of the track structure mainly lies in the construction control of the elevation of the track slab before and after the pouring of self-compacting concrete. During the pouring process of self-compacting concrete, without limiting, since the track slab floats on the upper part of the self-compacting concrete, it will cause the track slab to float, resulting in a change in the elevation of the track slab; during the construction of the curve section, due to the existence of curve superelevation, the track slab is affected by its own gravity and buoyancy, which will cause the track slab to shift laterally towards the inside of the superelevation. The magnitude of the floating and lateral displacement of the track slab will directly affect the construction quality of the ballastless track. It is particularly important to control the floating and lateral displacement of the track slab.

[0003] In the prior art, the quality control of the ballastless track still mainly relies on post-construction inspection. The measurement of the mechanical state of the track slab during the construction process is still insufficient, and the existing traditional track slab limiting device and mechanical state measuring device used in construction have not been integrated and intelligentized.

[0004] Currently, the commonly used limiting methods on the construction site are mainly the pressing device composed of a channel steel and a tie rod and the layout of limiting bolts on the inner side of the curve, which respectively limit the track slab vertically and horizontally. Although it can achieve a good pressing and limiting effect, the device has a large volume, and the storage, transportation, installation and disassembly will cause a waste of a large amount of manpower, material resources and financial resources. During the construction period, the displacement measurement of the track slab is mainly carried out through two times of fine adjustment before the pouring of self-compacting concrete and the remeasurement of the track slab after the final setting of self-compacting concrete. During the construction process of self-compacting concrete, the main method is to randomly check with a dial indicator, which has obvious problems such as cumbersome procedures and difficulty in real-time monitoring and control. Currently, the buoyancy on the construction site is not monitored, and the measurement of the pre-pressure of the pressing device mainly uses a torque wrench. There are also some deficiencies in the use of the torque wrench. First, the accuracy of the torque wrench will change after long-term use, and it needs to be recalibrated regularly; second, after long-term use of the limiting device, the channel steel will inevitably deform, and the bolts and nuts will also rust, thus affecting the measurement accuracy of the pre-pressure.

[0005] Therefore, researching an adjustable anti-floating and lateral displacement limiting device for track slabs with functions of monitoring the pre-pressure, buoyancy and displacement of track slabs and a construction method thereof is the key problem that needs to be solved urgently at present. Summary of the Invention

[0006] Embodiments of the present invention provide a track slab limiting device with a mechanical state monitoring function and a construction method, so as to ensure the construction quality of self-compacting concrete pouring while improving the construction efficiency.

[0007] To achieve the above object, the present invention adopts the following technical solutions.

[0008] According to one aspect of the present invention, there is provided a track slab limiting device with a mechanical state monitoring function, including: a foundation mechanism, and an anti-floating mechanism, an anti-side shift mechanism, a pressure sensing mechanism, a displacement sensing mechanism, and a data processing mechanism connected to the foundation mechanism;

[0009] The foundation mechanism includes a main body component for connecting other mechanisms, fixing bolts for fixing the main body component to the base plate, a first limiting boss and a second limiting boss for connecting other mechanisms;

[0010] The anti-floating mechanism includes a pressing component for moving it back and forth on the main body component and pressing the upper surface of the track slab, and locking bolts for the front and rear positions;

[0011] The anti-side shift mechanism includes limiting bolts for laterally pressing the inner surface of the super-elevation of the track slab in the curve section;

[0012] The pressure sensing mechanism includes a mechanical sensor for measuring the extrusion force between the anti-floating mechanism and the track slab;

[0013] The displacement sensing mechanism includes a main bracket, a sub-bracket horizontally placed and connected to the main bracket, a transverse bracket horizontally placed at the top of the main bracket, a track slab vertical displacement sensor installed at the front end of the transverse bracket, and a track slab lateral displacement sensor installed at the front end of the sub-bracket;

[0014] The data processing mechanism includes a control module, a data display module, a battery module, a setting button, an audible and visual alarm module, a data storage module, a data wireless transmission module, a USB interface, and a SIM card interface.

[0015] Preferably, the main body component of the foundation mechanism is connected to the bolt holes on the upper surface and side surface of the base plate through four fixing bolts.

[0016] Preferably, the anti-floating mechanism moves back and forth through a serrated card slot provided, and the serrated card slot of the anti-floating mechanism restricts the free front and rear displacement of the anti-floating mechanism between the main body component, and the anti-floating mechanism and the main body component are connected through locking bolts.

[0017] Preferably, the anti-side shift mechanism includes four limiting bolts, and the four limiting bolts are connected to the bolt holes of the main body component.

[0018] Preferably, the main bracket of the displacement sensing mechanism is connected to the main body component through a first limiting boss. A signal transmission metal contact is provided on the upper surface of the first limiting boss, and a damping rubber pad for adjusting the position of the main bracket is provided on the side surface;

[0019] A universal spirit level is provided at the top of the main bracket; the main bracket and the sub-bracket are connected through a vertical sliding adjustment groove. A first horizontal adjustment knob is provided between the sub-bracket and the lateral displacement sensor, and the first horizontal adjustment knob controls the front-back telescoping of the lateral displacement sensor; a second horizontal adjustment knob is provided between the main bracket and the lateral bracket, and the second horizontal adjustment knob controls the front-back telescoping of the lateral bracket; a vertical adjustment knob is provided between the lateral bracket and the vertical displacement sensor, and the vertical adjustment knob controls the up-down telescoping of the vertical displacement sensor.

[0020] Preferably, the pressure sensing mechanism includes a pressure sensor with a square cross-section, and the pressure sensor is connected to the signal transmission metal contact on the second limiting boss through the internal wire of the main body component.

[0021] Preferably, the data processing mechanism is connected to the main body component through a second limiting boss. A signal transmission metal contact is provided on the second limiting boss, and a damping rubber pad is provided on the side surface. The signal transmission metal contact on the second limiting boss is connected to the signal transmission metal contact on the first limiting boss through the internal wire of the main body component;

[0022] The data display module, battery module, setting button, sound and light alarm module, and data storage module of the data processing mechanism are all connected to the control module. The setting button includes a setting button with start / stop function, a setting button for clearing the data value, and a setting button with data acquisition start / stop function. The data storage module is connected to the wireless transmission module and the USB interface, and the wireless transmission module is connected to the SIM card interface.

[0023] According to another aspect of the present invention, a method for limiting the construction of a ballastless track slab is provided, which is applicable to the track slab limiting device with the function of monitoring the mechanical state. The method includes:

[0024] The main body component of the basic mechanism is fixedly connected to the base plate through fixing bolts; the pressing component is placed on the upper part of the main body component, and the position of the pressing component is adjusted front and back through the serrated card slot;

[0025] Place the displacement sensing mechanism on the first limiting boss, observe the universal spirit level on the top of the main support, and finely adjust the position and shape of the displacement sensing mechanism; place the data processing mechanism on the second limiting boss, click the start setting button, and observe the relevant data information of the pressure sensor, lateral displacement sensor, and vertical displacement sensor through the data display module; by observing the relevant real-time data information, turn the locking bolt of the anti-floating mechanism to adjust the pre-pressure to be the same as the buoyancy value received by the limiting device at the same position under the same working conditions.

[0026] By observing the relevant real-time data information, slide through the adjustment slot and rotate the first lateral adjustment knob to make the contact of the lateral displacement sensor touch the upper edge position of the side surface of the track slab. By rotating the second lateral adjustment knob and the vertical adjustment knob, make the contact of the vertical displacement sensor touch the position of the edge of the upper surface plate of the track slab. Connect the data processing mechanism to the computer through the USB interface, set the alarm threshold, click the data value clearing button of the data processing mechanism, and click the data acquisition start button to start the acquisition of measurement data.

[0027] When the measured value deviates and exceeds the set alarm threshold, an alarm sound is emitted through the sound and light alarm module.

[0028] Preferably, the method further includes:

[0029] Real-time monitor the displacement of the track slab by wired or wireless means. When the displacement is greater than the set value or the displacement increase rate is greater than the set value, reduce the opening size of the grouting hopper, and turn the locking bolt of the anti-floating mechanism to increase the pre-pressure of the anti-floating mechanism. During the adjustment process, the pre-pressure of each limiting device is monitored and fed back in real time by wired or wireless means.

[0030] Real-time monitor the buoyancy of the track slab by wired or wireless means. When the buoyancy is greater than the set value or the buoyancy increase rate is greater than the set value, reduce the opening size of the grouting hopper, turn the locking bolt of the anti-floating mechanism to increase the pre-pressure of the anti-floating mechanism. During the adjustment process, the pre-pressure of each limiting device can also be monitored and fed back in real time by wired or wireless means.

[0031] Preferably, the method further includes:

[0032] After the self-compacting concrete has finally set, remove the track slab limiting device with the mechanical state monitoring function; export the relevant collected information from the data storage module of the data processing mechanism by wired or wireless transmission method, and guide the size of the fastener adjustment amount in the subsequent construction process according to the displacement size, and guide the pre-pressure setting during the subsequent construction according to the buoyancy size.

[0033] As can be seen from the technical solutions provided by the embodiments of the present invention above, the track slab limiting device with mechanical state monitoring function of the present invention has functions such as data display, automatic alarm, and data transmission. Through the precise measurement of the pre-pressure of the limiting device before pouring, the buoyancy and displacement of the track slab during pouring, the precise monitoring of the construction state is realized, the quality of the pouring construction is guaranteed, the re-measurement process of the track slab is reduced, a new ballastless track slab limiting construction method is formed, the pouring construction efficiency is effectively improved, and the ballastless track construction is promoted to develop towards the intelligent direction.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description, and these will become apparent from the following description, or can be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 is a three-dimensional view of the overall structure of a track slab limiting device with mechanical state monitoring function of the present invention;

[0037] Figure 2 is a front view of the overall structure of a track slab limiting device with mechanical state monitoring function of the present invention;

[0038] Figure 3 is a side view of the overall structure of a track slab limiting device with mechanical state monitoring function of the present invention;

[0039] Figure 4 is a top view of the overall structure of a track slab limiting device with mechanical state monitoring function of the present invention;

[0040] Figure 5 is a sectional view of the track slab limiting device with mechanical state monitoring function of the embodiment of the present invention along the Figure 4 A-A line in;

[0041] Figure 6 is a three-dimensional view of the adjustable track slab limiting device (10) with mechanical state monitoring function of the embodiment of the present invention without installing a displacement sensing mechanism and a data processing mechanism;

[0042] Figure 7 is a three-dimensional view of the data processing mechanism of the adjustable track slab limiting device (10) with mechanical state monitoring function of the embodiment of the present invention;

[0043] Figure 8 It is a circuit principle block diagram of the adjustable track slab limit device (10) with mechanical state monitoring function according to an embodiment of the present invention.

[0044] Figure 9 It is a working three-dimensional view of the adjustable track slab limit device (10) with mechanical state monitoring function according to an embodiment of the present invention during the construction of self-compacting concrete pouring.

[0045] In the figure: foundation mechanism - 1, main body component - 101, fixing bolt - 102, first limit boss - 103, second limit boss - 104, anti-floating mechanism - 2, capping component - 201, locking bolt - 202, anti-side shift mechanism - 3, limit bolt - 301, pressure sensing mechanism - 4, pressure sensor - 401, displacement sensing mechanism - 5, main bracket - 501, sub-bracket - 502, transverse bracket - 503, transverse displacement sensor - 504, vertical displacement sensor - 505, adjustment button - 506, sliding adjustment groove - 507, first transverse adjustment knob - 508, second transverse adjustment knob - 509, vertical adjustment knob - 510, universal spirit level, data processing mechanism - 6, control module - 601, data display module - 602, battery module - 603, setting button - 604, sound and light alarm module - 605, data storage module - 606, data wireless transmission module - 607, USB interface - 608, SIM card interface - 609, track slab - 7, base slab - 8, self-compacting concrete form - 9, an adjustable track slab limit device with mechanical state monitoring function - 10. Specific embodiments

[0046] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described by referring to the drawings below are exemplary and are only used to explain the present invention, and cannot be construed as a limitation of the present invention.

[0047] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the" and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present invention means the presence of the described 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 their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or coupling. The phrase "and / or" used herein includes any and all combinations of any one of the one or more associated listed items.

[0048] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention pertains. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as herein.

[0049] For the convenience of understanding the embodiments of the present invention, the following will further explain with several specific embodiments in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0050] Based on the consideration of the above-mentioned problems of the prior art, it is necessary to measure the pre-pressure of the pressing device before pouring while restricting the displacement of the track slab, and a kind of adjustable anti-floating and side-shift limiting device for track slabs with the functions of monitoring the pre-pressure, buoyancy and displacement of the track slab is proposed. The buoyancy and displacement of the track slab are monitored in real time. The measurement of the buoyancy can be used to guide the on-site construction personnel to adjust the pre-pressure of the limiting device, and the measurement of the displacement can be used to guide the on-site construction personnel to control the pouring inlet speed of the self-compacting concrete to ensure the pouring quality of the self-compacting concrete.

[0051] The overall structural perspective view of an adjustable track slab limiting device (10) with a mechanical state monitoring function provided by an embodiment of the present invention is as Figure 1 shown, the structural front view is as Figure 2 shown, the overall structural side view is as Figure 3 shown, and the overall structural top view is as Figure 4As shown, the device comprises a main body component (101), the main body component (101) and the base plate (8) are fixedly connected by four fixing bolts (102), the fixing bolts (102) are connected to the bolt holes on the side surfaces of the two base plates (8), and are connected to the bolt holes on the upper surfaces of the two base plates (8). The four limiting bolts (301) of the anti-lateral displacement mechanism (3) are connected to the bolt holes on the side surface of the main body component (101), and the four limiting bolts (301) are arranged in two rows and two columns.

[0052] Figure 5 The adjustable track plate limiting device (10) with mechanical state monitoring function according to an embodiment of the present invention is provided along Figure 4 The cross-sectional view cut along the AA line in Figure 5 As shown, the anti-floating mechanism (2) can move forward and backward through the provided sawtooth slot, and the sawtooth slot can limit the anti-floating mechanism (2) from freely moving forward and backward between the main body (101), and the anti-floating mechanism (2) and the main body (101) are connected by a locking bolt (202). The pressure sensing mechanism (4) is a pressure sensor (401) with a square cross section, and the pressure sensor (401) is welded to the top pressing part (201) of the anti-floating mechanism (2), and the pressure sensor (401) is connected to the signal transmission metal contact on the second limiting boss (104) through the internal wire of the main body (101).

[0053] Figure 6 This is a three-dimensional diagram of an adjustable track plate limit device (10) with a mechanical state monitoring function without a displacement sensor (5) and a data processing mechanism (6) installed in an embodiment of the present invention, combined with Figure 1 , 2As shown in FIGS. 3, 4, and 6, the main bracket (501) of the displacement sensing mechanism (5) is connected to the main body component (101) through the first limiting boss (103), which can be removed or installed as needed. A signal transmission metal contact is provided on the upper surface of the first limiting boss (103), and this signal transmission metal contact is connected to the internal wire of the main body component (101). A damping rubber pad is provided on the side surface of the first limiting boss (103) to finely adjust the position of the main bracket (501). Moreover, a universal level is provided at the top of the main bracket (501) of the displacement sensing mechanism (5), and the position and form of the bracket can be adjusted with reference to the universal level. The main bracket (501) is connected to the sub-bracket (502) through a vertical sliding adjustment groove (507) to ensure the vertical position adjustment of the lateral displacement sensor (504). There is a first lateral adjustment knob (508) between the sub-bracket (502) and the lateral displacement sensor (504), and the first lateral adjustment knob (508) can control the front-back expansion and contraction of the lateral displacement sensor (504) to ensure the lateral position adjustment of the lateral displacement sensor (504). A second lateral adjustment knob (509) is provided between the main bracket (501) and the lateral bracket (503), and the second lateral adjustment knob (509) can control the front-back expansion and contraction of the lateral bracket (503) to ensure the lateral position adjustment of the vertical displacement sensor (505). A vertical adjustment knob (510) is provided between the lateral bracket (503) and the vertical displacement sensor (505), and the vertical adjustment knob (510) can control the up-down expansion and contraction of the vertical displacement sensor (505) to ensure the vertical position adjustment of the vertical displacement sensor (505).

[0054] Figure 7 FIG. 4 is a perspective view of the data processing mechanism (6) of the adjustable track slab limiting device (10) with a mechanical state monitoring function according to an embodiment of the present invention. In combination with Figures 6 - 7 As shown in FIG. 6, the data processing mechanism (6) is connected to the main body component (101) through the second limiting boss (104), which can be removed or installed as needed. A signal transmission metal contact is provided on the second limiting boss (104), and this signal transmission metal contact is connected to the internal wire of the main body component (101). A damping rubber pad is provided on the side surface. The signal transmission metal contact on the second limiting boss (104) is connected to the signal transmission metal contact on the first limiting boss (103) through the internal wire of the main body component (101).

[0055] Figure 8 FIG. 6 is a circuit principle block diagram of the adjustable track slab limiting device (10) with a mechanical state monitoring function according to an embodiment of the present invention. In combination with Figures 7 - 8As shown in the figure, the data display module (602), battery module (603), setting button (604), acoustic-optic alarm module (605), data storage module (606) and USB interface (608) of the data processing mechanism (6) are all connected to the control module (601). Among them, the data of the pressure sensor (401), lateral displacement sensor (504) and vertical displacement sensor (505) will be transmitted to the control module (601) of the data processing mechanism (6). The control module (601) stores the data in the data storage module (606), and at the same time transmits the real-time data to the data display module (602). When the data deviates, the acoustic-optic alarm module (605) will be triggered to give an audible and visual alarm. The common settings of the control module (601) can be set by pressing the keys on the setting button (604). The setting button includes a setting button with start / stop function, a setting button for clearing the data value, and a setting button for starting / stopping data acquisition. Other settings such as alarm threshold setting need to be operated by connecting a computer to the USB interface (608). The data storage module (606) is connected to the wireless transmission module and the USB interface (608), enabling wireless transmission of data and wired transmission through the USB interface (608). The wireless transmission module is connected to the SIM card interface (609) to provide information communication services for the wireless transmission module. At the same time, the USB interface (608) is connected to the battery module (603) to provide charging and power supply functions for the device.

[0056] Figure 9 This is a working three-dimensional view of the adjustable track slab limit device (10) with a mechanical state monitoring function according to an embodiment of the present invention during the self-compacting concrete pouring construction, as Figure 9 shown. The specific construction process of the device includes: after the track slab (7) is finely adjusted, install the limit device (10). First, fixedly connect the main body component (101) to the base plate (8) through the fixing bolts (102); place the pressing component (201) on the upper part of the main body component (101), and adjust the position of the pressing component (201) back and forth through the serrated card slots. After adjusting to the appropriate position, tighten the locking bolts (202).

[0057] Place the displacement sensor mechanism (5) on the first limiting boss (103), observe the universal level on the top of the main support (501), and finely adjust the position and shape of the displacement sensor mechanism (5); place the data processing mechanism (6) on the second limiting boss (104), and click the start setting button. At this time, the relevant data information of the pressure sensor (401), the lateral displacement sensor (504), and the vertical displacement sensor (505) can be observed through the data display module (602); by observing the relevant real-time data information, turn the locking bolt (202) of the anti-floating mechanism (2) to adjust the pre-pressure to be approximately the same as the upward buoyancy value received by the limiting device at the same position under the same working conditions; at the same time, by observing the relevant real-time data information, slide through the adjustment slot and rotate the first lateral adjustment knob (508) to make the contact head of the lateral displacement sensor (504) closely contact the upper edge position of the side surface of the track slab (7), and pre-press it by 1-2 mm. Rotate the second lateral adjustment knob (509) and the vertical adjustment knob (510) to make the contact head of the vertical displacement sensor (505) closely contact the edge position of the upper surface plate of the track slab (7), and pre-press it by 1-2 mm; connect the data processing mechanism (6) to the computer through the USB interface (608), set the alarm threshold, with the default displacement alarm threshold being 1.2 mm and the default displacement change rate alarm threshold being 0.8 mm / min; click the data value clearing button of the data processing mechanism (6), and click the data acquisition start button to start the acquisition of measurement data. When the measured value deviates and exceeds the set alarm threshold, the acoustic and optical alarm module (605) will emit a long beeping alarm sound and start flashing;

[0058] During the construction process, the displacement of the track slab (7) can be monitored in real time by wired or wireless means. When the displacement is too large or the displacement increase rate is too fast, the opening size of the pouring hopper should be reduced in a timely manner, and the locking bolt of the anti-floating mechanism should be turned to increase the pre-pressure of the anti-floating mechanism. The pre-pressure of each limiting device (10) during the adjustment process can also be monitored and fed back in real time by wired or wireless means.

[0059] During the construction process, the upward buoyancy of the track slab (7) can be monitored in real time by wired or wireless means. When the upward buoyancy is too large or the upward buoyancy increase rate is too fast, the opening size of the pouring hopper should be reduced in a timely manner, and the locking bolt of the anti-floating mechanism should be turned to increase the pre-pressure of the anti-floating mechanism. The pre-pressure of each limiting device (10) during the adjustment process can also be monitored and fed back in real time by wired or wireless means.

[0060] After the self-compacting concrete has finally set, the limiting device (10) is removed; meanwhile, the relevant collected information can be exported from the data storage module (606) of the data processing mechanism (6) through wired or wireless transmission. The magnitude of the displacement can guide the magnitude of the fastener adjustment in the subsequent construction process, eliminating the need for the remeasurement process of the track slab. The magnitude of the upward buoyancy can be used to guide the pre-pressure setting during subsequent construction, and the relevant data can guide the improvement of the subsequent construction technology and the improvement of the construction method.

[0061] In summary, the method of the embodiment of the present invention has the following advantages over the prior art:

[0062] (1) The present invention has good adaptability and can be applied to different foundations such as subgrades, bridges, and tunnels, as well as different alignment conditions such as straight sections, superelevation sections of horizontal curves, and ramp sections of vertical curves, realizing strict limitation of the track slab during the pouring construction of self-compacting concrete for CRTS III type slab ballastless tracks.

[0063] (2) The present invention has functions such as data display, automatic alarm, and data transmission, realizing accurate measurement of the pre-pressure of the limiting device before pouring, the upward buoyancy and displacement of the track slab during pouring. The relevant data can also conduct refined systematic management of the construction quality. Through accurate monitoring of the construction status, the quality of the pouring construction is guaranteed, the remeasurement process of the track slab is reduced, the pouring construction efficiency is effectively improved, and the development of ballastless track construction towards the intelligent direction is promoted.

[0064] Those of ordinary skill in the art can understand that the drawings are only schematic diagrams of an embodiment, and the modules or processes in the drawings are not necessarily essential for implementing the present invention.

[0065] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiments, since they are basically similar to the method embodiments, they are described relatively simply, and the relevant parts can refer to the partial descriptions of the method embodiments. The device and system embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention. Those of ordinary skill in the art can understand and implement it without creative work.

[0066] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An orbital slab limiting device with a mechanical state monitoring function, characterized in that, Comprising: A basic mechanism, as well as an anti-floating mechanism, an anti-sideways movement mechanism, a pressure sensing mechanism, a displacement sensing mechanism, and a data processing mechanism connected to the basic mechanism; The basic mechanism includes a main body component for connecting other mechanisms, fixing bolts for fixing the main body component to the base plate, a first limiting boss and a second limiting boss for connecting other mechanisms; The anti-floating mechanism includes a pressing component for realizing its forward and backward movement on the main body component and pressing the upper surface of the track slab, and locking bolts for the front and rear positions; The anti-sideways movement mechanism includes limiting bolts for realizing the lateral pressure on the inner surface of the superelevation of the track slab in the curve section; The pressure sensing mechanism includes a mechanical sensor for measuring the extrusion pressure between the anti-floating mechanism and the track slab; The displacement sensing mechanism includes a main bracket, a sub-bracket horizontally placed and connected to the main bracket, a transverse bracket horizontally placed at the top of the main bracket, a track slab vertical displacement sensor installed at the front end of the transverse bracket, and a track slab lateral displacement sensor installed at the front end of the sub-bracket; The data processing mechanism includes a control module, a data display module, a battery module, a setting button, an audible and visual alarm module, a data storage module, a data wireless transmission module, a USB interface, and a SIM card interface; The main bracket of the displacement sensing mechanism is connected to the main body component through the first limiting boss. A signal transmission metal contact is arranged on the upper surface of the first limiting boss, and a damping rubber pad for adjusting the position of the main bracket is arranged on the side surface; A universal level is provided at the top of the main bracket; the main bracket and the sub-bracket are connected through a vertically sliding adjustment groove. A first lateral adjustment knob is arranged between the sub-bracket and the lateral displacement sensor, and the first lateral adjustment knob controls the front and rear telescoping of the lateral displacement sensor; a second lateral adjustment knob is arranged between the main bracket and the transverse bracket, and the second lateral adjustment knob controls the front and rear telescoping of the transverse bracket; a vertical adjustment knob is arranged between the transverse bracket and the vertical displacement sensor, and the vertical adjustment knob controls the up and down telescoping of the vertical displacement sensor.

2. The device according to claim 1, characterized in that The main body component of the basic mechanism is connected to the upper surface and side surface bolt holes of the base plate through four fixing bolts.

3. The device according to claim 1, wherein The anti-floating mechanism moves forward and backward through the provided serrated card slots. The serrated card slots of the anti-floating mechanism limit the free forward and backward displacement of the anti-floating mechanism between the main body component, and the anti-floating mechanism and the main body component are connected through locking bolts.

4. The device according to claim 1, characterized in that The anti-sideways movement mechanism includes four limiting bolts, and the four limiting bolts are connected to the bolt holes of the main body component.

5. The device according to claim 1, characterized in that, The pressure sensing mechanism includes a pressure sensor with a square cross-section, and the pressure sensor is connected to the signal transmission metal contact on the second limiting boss through the internal wire of the main body component.

6. The device according to claim 1, characterized in that, The data processing mechanism is connected to the main body component through the second limiting boss. A signal transmission metal contact is arranged on the second limiting boss, and a damping rubber pad is arranged on the side surface. The signal transmission metal contact on the second limiting boss is connected to the signal transmission metal contact on the first limiting boss through the internal wire of the main body component; The data display module, battery module, setting buttons, acoustic-optic alarm module, and data storage module of the data processing mechanism are all connected to the control module. The setting buttons include a setting button with start / stop function, a setting button for clearing the data value, and a setting button with data acquisition start / stop function. The data storage module is connected to a wireless transmission module and a USB interface, and the wireless transmission module is connected to a SIM card interface.

7. A construction method for limiting a ballastless track slab, characterized in that, Applicable to the track slab limit device with mechanical state monitoring function according to any one of claims 1-6, the method includes: Fix the main component of the basic mechanism to the base plate through fixing bolts; place the pressing component on the upper part of the main component, and adjust the position of the pressing component back and forth through the serrated card slots; Place the displacement sensing mechanism on the first limit boss, observe the universal level on the top of the main bracket, and finely adjust the position and shape of the displacement sensing mechanism; place the data processing mechanism on the second limit boss, click the start setting button, and observe the relevant data information of the pressure sensor, lateral displacement sensor, and vertical displacement sensor through the data display module; by observing the relevant real-time data information, turn the locking bolt of the anti-floating mechanism to adjust the pre-pressure to be the same as the buoyancy value received by the limit device at the same position under the same working conditions; By observing the relevant real-time data information, slide through the adjustment slot and rotate the first lateral adjustment knob to make the contact head of the lateral displacement sensor contact the upper edge position of the side surface of the track slab. By rotating the second lateral adjustment knob and the vertical adjustment knob, make the contact head of the vertical displacement sensor contact the edge position of the upper surface plate of the track slab. Connect the data processing mechanism to the computer through the USB interface, set the alarm threshold, click the data value clearing button of the data processing mechanism, and click the data acquisition start button to start the acquisition of measurement data; When the measured value deviates and exceeds the set alarm threshold, an alarm sound is emitted through the acoustic-optic alarm module.

8. The method according to claim 7, characterized in that, The method further includes: Real-time monitor the displacement of the track slab by wired or wireless means. When the displacement is greater than the set value or the displacement increase rate is greater than the set value, reduce the opening size of the pouring hopper, and turn the locking bolt of the anti-floating mechanism to increase the pre-pressure of the anti-floating mechanism. During the adjustment process, the pre-pressure of each limit device is monitored and fed back in real time by wired or wireless means; Real-time monitor the buoyancy of the track slab by wired or wireless means. When the buoyancy is greater than the set value or the buoyancy increase rate is greater than the set value, reduce the opening size of the pouring hopper, turn the locking bolt of the anti-floating mechanism to increase the pre-pressure of the anti-floating mechanism. During the adjustment process, the pre-pressure of each limit device can also be monitored and fed back in real time by wired or wireless means.

9. The method according to claim 7 or 8, characterized in that, The method further includes: After the self-compacting concrete has finally set, remove the track slab limiting device with the mechanical state monitoring function; export the relevant collected information from the data storage module of the data processing mechanism through wired or wireless transmission methods, and guide the amount of fastener adjustment in the subsequent construction process according to the magnitude of the displacement, and guide the setting of the pre-pressure during subsequent construction according to the magnitude of the upward buoyancy force.

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