Monitoring device for pavement settlement

Abstract

The utility model discloses a monitoring device for pavement settlement, which relates to the technical field of pavement settlement monitoring, and comprises a mounting plate fixed on an upper pouring layer, the middle part of the mounting plate is in sliding connection with a stable cylinder, the surface of the stable cylinder is in sliding connection with a reinforcing cover, the interior of the stable cylinder is in rotating connection with a calibration rod, and the calibration rod is in sliding connection with the reinforcing cover. The drainage channel cleaning device comprises a calibration rod, a mounting plate and a reinforcing cover, a main calibration ball is fixedly mounted at the top of the calibration rod, an auxiliary calibration ball is fixedly mounted on the mounting plate, a threaded end fixed to the bottom of a stable cylinder is fixedly mounted at the bottom of the calibration rod, and the upper end and the lower end of the reinforcing cover are both in annular design. The reinforcing cover is in contact with the upper pouring layer, so that the problem of displacement of the stabilizing cylinder after the upper pouring layer or the bottom rock stratum is fractured can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface settlement monitoring, in particular to a monitoring device for road surface settlement. Background Technique

[0002] Settlement monitoring can reflect the settlement changes of the surrounding soil mass. Therefore, it plays a guaranteeing role in the safety of construction. During the construction process, the influence of construction on the surrounding strata can be monitored by arranging settlement monitoring devices. At present, the main method of settlement monitoring is manual inspection. The technical means usually adopted in manual inspection are measuring with a three-meter straightedge or observing settlement observation points. There are also some that use intelligent sensing devices to monitor through existing settlement observation points; the intelligent sensing device installs calibration rods at multiple ground positions. Each calibration rod uses positive and negative calibration balls as sensing components. The multiple calibration rods are optically connected through the sensing components and sensors. When settlement occurs in a certain area, the intelligent sensing device transmits data to the terminal background, so that the settlement amount can be calculated and known through a computer. However, the soil nail monitoring identification rod of general settlement monitoring devices is directly inserted into the ground manually. During the installation process, the positive and negative calibration balls of the sensing components are fixed on the ground following the identification rod after being calibrated by optical sensing technology. After being stabilized, the identification rod is easily loosened due to human or foreign object impacts, has low strength, and will be misaligned with the surface settlement or rebound, resulting in inaccurate monitoring data. The misalignment of the identification rod will also cause a certain degree of damage to the road surface. Content of the Utility Model

[0003] The purpose of the utility model is to provide a monitoring device for road surface settlement to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A monitoring device for road surface settlement, including a mounting plate fixed on the upper casting layer. A stabilizing cylinder is slidably connected to the middle of the mounting plate. A reinforcing cover is slidably connected to the surface of the stabilizing cylinder. A calibration rod is rotatably connected to the inside of the stabilizing cylinder. A positive calibration ball is fixedly installed at the top of the calibration rod. A negative calibration ball is fixedly installed on the mounting plate. A threaded end fixedly connected to the bottom of the stabilizing cylinder is fixedly installed at the bottom of the calibration rod. Both the upper and lower ends of the reinforcing cover are designed in a ring shape. The bottom end face of the reinforcing cover contacts the surface of the bottom rock layer, and at least one side edge of both the upper and lower ends of the reinforcing cover abuts against the upper casting layer.

[0005] Preferably, the middle of the reinforcing cover is narrow, and the upper and lower ends are designed in a trumpet shape, and the upper and lower ends are respectively in contact with the upper casting layer and the bottom rock layer. After pressure is generated at its top, a trend of squeezing towards its axis is formed in the middle, and the bottom expands outwards.

[0006] Preferably, a backfill cavity is formed between the reinforcing cover and the auxiliary calibration ball, and the backfill material inside the backfill cavity exerts pressure on the reinforcing cover.

[0007] Preferably, ground thorns are fixedly installed at the bottom of the stabilizing cylinder and penetrate into the bottom rock formation, and the ground thorns create a height difference between the auxiliary calibration ball and the main calibration ball.

[0008] Preferably, the bottom edge of the surface of the calibration rod has a raised edge extending upward. Connecting holes are provided around the middle parts of the reinforcing cover and the stabilizing cylinder. A plurality of fixing rings are fixedly installed on the stabilizing cylinder. The inner ring of the fixing ring is slidably connected with a reinforcing column. One end of the reinforcing column is fixedly connected with a retaining ring. An arch ball is arranged at the end of the reinforcing column, and the arch ball at the end of the reinforcing column is in sliding contact with the raised edge. A spring is fixedly connected between the retaining ring and the fixing ring. The other end of the reinforcing column is fixedly installed with a support plate, and the support plate is in contact with the upper casting layer.

[0009] Preferably, the top of the stabilizing cylinder has a fully enclosed structure that fits around the outer circle of the calibration rod, and a locking ring is fixedly installed on the calibration rod.

[0010] Preferably, scale lines are provided on the stabilizing cylinder to assist in observing the position changes of the auxiliary calibration ball and the main calibration ball.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the auxiliary calibration ball and the main calibration ball are separated. The contact between the reinforcing cover and the upper casting layer can effectively prevent the problem of the displacement of the stabilizing cylinder when the upper casting layer or the bottom rock formation breaks. With the support of the support plate, the stability effect of the stabilizing cylinder is improved, and the strength of the stabilizing cylinder is enhanced. The mounting plate is installed on the outer circle of the stabilizing cylinder, and it is fixed to the ground with tapping bolts around it, effectively preventing the calibration rod from shaking when the ground tears. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the overall sectional structure of the present utility model;

[0015] Figure 3 is the present utility model Figure 2 is an enlarged schematic diagram of part A in

[0016] Figure 4 is a schematic diagram of the structure of the reinforcing cover of the present utility model;

[0017] Figure 5 is a schematic diagram of the structure of the support plate and the reinforcing column of the present utility model.

[0018] In the figure: 1 - mounting plate; 2 - stabilizing cylinder; 3 - secondary calibration ball; 4 - primary calibration ball; 5 - calibration rod; 6 - backfill cavity; 7 - threaded end; 8 - locking ring; 9 - reinforcement cover; 019 - connection hole; 10 - support plate; 11 - fixing ring; 12 - spring; 13 - retaining ring; 14 - reinforcement column. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 , the present invention provides a technical solution: a monitoring device for road surface settlement, including a mounting plate 1 fixed on the upper casting layer. A stabilizing cylinder 2 is slidably connected to the middle of the mounting plate 1. A reinforcement cover 9 is slidably connected to the surface of the stabilizing cylinder 2. A calibration rod 5 is rotatably connected inside the stabilizing cylinder 2. A primary calibration ball 4 is fixedly installed at the top of the calibration rod 5. A secondary calibration ball 3 is fixedly installed on the mounting plate 1. A threaded end 7 fixedly installed at the bottom of the calibration rod 5 is fixed to the bottom of the stabilizing cylinder 2. Both the upper and lower ends of the reinforcement cover 9 are designed in a ring shape. The bottom end face of the reinforcement cover 9 contacts the surface of the bottom rock layer, and at least one side edge of both the upper and lower ends of the reinforcement cover 9 abuts against the upper casting layer. The reinforcement cover 9 is made of a material with a certain elasticity, such as corrosion-resistant rubber. First, during the installation process, a hole is drilled into the ground, for example Figure 2 as shown, then the reinforcement cover 9 is placed above the bottom rock layer. The reinforcement cover 9 and the stabilizing cylinder 2 are an integral structure. When the stabilizing cylinder 2 is inserted into a certain position of the bottom rock layer, the reinforcement cover 9 abuts against the bottom rock layer. Then, the calibration rod 5 is installed in the stabilizing cylinder 2, and the calibration rod 5 is locked with the stabilizing cylinder 2 through the threaded end 7. Finally, the mounting plate 1 is installed on the outer circle of the stabilizing cylinder 2, and it is fixed with tapping bolts around it and the ground. When the ground tears, it effectively prevents the calibration rod 5 from shaking. When the upper casting layer tears and sinks, the secondary calibration ball 3 descends, and the primary calibration ball 4 does not move. By statistically analyzing the data detected by the data sensor, the settlement amount of this area can be obtained. When a fault occurs in the bottom rock layer and the stabilizing cylinder 2 becomes unstable, the bottom of the reinforcement cover 9 and the stabilizing cylinder 2 descend together, making the height difference between the secondary calibration ball 3 and the primary calibration ball 4 larger, so as to facilitate manual inspection to draw a conclusion or be judged by a sensor. Among them, the contact between the reinforcement cover 9 and the upper casting layer can effectively prevent the problem that the stabilizing cylinder 2 is displaced after the upper casting layer or the bottom rock layer breaks.

[0021] Furthermore, the middle part of the reinforcing cover 9 is narrow, and the upper and lower ends are designed in a trumpet shape. The upper and lower ends are respectively in contact with the upper casting layer and the bottom rock stratum. After pressure is generated at its top end, a tendency to squeeze towards its axis is formed in the middle part, and the bottom expands outwards. A backfill cavity 6 is formed between the reinforcing cover 9 and the secondary marking ball 3, and the backfill in the backfill cavity 6 forms pressure on the reinforcing cover 9. A ground thorn is fixedly installed at the bottom of the stabilizing cylinder 2 and penetrates into the bottom rock stratum. The ground thorn creates a height difference between the secondary marking ball 3 and the primary marking ball 4. Heavy objects can be filled in the backfill cavity 6. When installing the device, after the reinforcing cover 9 is placed on the bottom rock stratum and is stable, before fixing the mounting plate 1 to the upper casting layer, objects such as stones and sand can be poured in to prevent the top of the upper casting layer from being easily cracked under force, and at the same time, pressure is generated on the reinforcing cover 9. After the reinforcing cover 9 is deformed, the edge of the reinforcing cover 9 is closely attached to the upper casting layer, effectively preventing the bottom of the reinforcing cover 9 from being unstable after the bottom rock stratum or loose soil layer is damaged, so that the reinforcing cover 9 tilts after descending, affecting the sinking amount of the stabilizing cylinder 2.

[0022] Furthermore, a raised edge extending upwards is provided at the bottom edge of the surface of the calibration rod 5. Connecting holes 019 are provided around the middle parts of the reinforcing cover 9 and the stabilizing cylinder 2. A plurality of fixing rings 11 are fixedly installed on the stabilizing cylinder 2. The inner ring of the fixing ring 11 is slidably connected with a reinforcing column 14. One end of the reinforcing column 14 is fixedly connected with a retaining ring 13. An arch ball is provided at the end of the reinforcing column 14, and the arch ball at the end of the reinforcing column 14 slidably abuts against the raised edge. A spring 12 is fixedly connected between the retaining ring 13 and the fixing ring 11. The other end of the reinforcing column 14 is fixedly installed with a support plate 10. The support plate 10 is in contact with the upper casting layer. When the calibration rod 5 is in a fixed position, by manually pressing down on the calibration rod 5 with force, the raised edge of the calibration rod 5 contacts one end of the arch ball at the end of the reinforcing column 14, causing the spring 12 to be compressed, and then the support plate 10 supports on the upper casting layer. Then, the calibration rod 5 is fixed to the stabilizing cylinder 2 through the threaded end 7. With the support of the support plate 10, the stability of the stabilizing cylinder 2 is improved, and the strength of the stabilizing cylinder 2 is enhanced.

[0023] The top of the stabilizing cylinder 2 has a fully enclosed structure, as Figure 2 shown. The fully enclosed structure is in a ring shape and is slidably connected with the calibration rod 5, and the fully enclosed structure fits on the outer circle of the calibration rod 5. A locking ring 8 is fixedly installed on the calibration rod 5. The calibration rod 5 is placed inside the stabilizing cylinder 2, and the sliding distance of the calibration rod 5 is controlled by the locking ring 8 to prevent the calibration rod 5 from being lost during long-term use.

[0024] The stabilizing cylinder 2 is provided with scale lines to assist in observing the position changes of the secondary marking ball 3 and the primary marking ball 4. The position changes of the secondary marking ball 3 and the primary marking ball 4 can be judged by means of manual inspection, so as to judge whether the upper casting layer or the bottom rock stratum is damaged.

[0025] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for road surface settlement, characterized in that: It includes a mounting plate (1) fixed on the upper casting layer. A stabilizing cylinder (2) is slidably connected to the middle of the mounting plate (1). A reinforcing cover (9) is slidably connected to the surface of the stabilizing cylinder (2). A calibration rod (5) is rotatably connected inside the stabilizing cylinder (2). A positive calibration ball (4) is fixedly installed at the top of the calibration rod (5). A secondary calibration ball (3) is fixedly installed on the mounting plate (1). A threaded end (7) fixed to the bottom of the stabilizing cylinder (2) is fixedly installed at the bottom of the calibration rod (5). Both the upper and lower ends of the reinforcing cover (9) are designed in a ring shape. The bottom end face of the reinforcing cover (9) contacts the surface of the bottom rock layer, and at least one side edge of both the upper and lower ends of the reinforcing cover (9) abuts against the upper casting layer.

2. The monitoring device for road surface settlement according to claim 1, characterized in that: The middle of the reinforcing cover (9) is narrow, and the upper and lower ends are designed in a flared shape. The upper and lower ends are respectively in contact with the upper casting layer and the bottom rock layer. After pressure is generated at its top, a tendency to squeeze towards its axis is formed in the middle, and the bottom expands outwards.

3. The monitoring device for road surface settlement according to claim 2, characterized in that: A backfill cavity (6) is formed between the reinforcing cover (9) and the secondary calibration ball (3), and the backfill inside the backfill cavity (6) forms pressure on the reinforcing cover (9).

4. The monitoring device for road surface settlement according to claim 1, characterized in that: Ground spikes are fixedly installed at the bottom of the stabilizing cylinder (2) and penetrate into the bottom rock layer, and the ground spikes cause a height difference between the secondary calibration ball (3) and the positive calibration ball (4).

5. The monitoring device for road surface settlement according to claim 1, characterized in that: A raised edge extending upwards is provided at the bottom edge of the surface of the calibration rod (5). Connecting holes (019) are provided around the middle of both the reinforcing cover (9) and the stabilizing cylinder (2). A plurality of fixing rings (11) are fixedly installed on the stabilizing cylinder (2). A reinforcing column (14) is slidably connected to the inner circle of the fixing ring (11). One end of the reinforcing column (14) is fixedly connected to a retaining ring (13). An arch ball is provided at the end of the reinforcing column (14), and the arch ball at the end of the reinforcing column (14) slidably abuts against the raised edge. A spring (12) is fixedly connected between the retaining ring (13) and the fixing ring (11). The other end of the reinforcing column (14) is fixedly installed with a support plate (10), and the support plate (10) abuts against the upper casting layer.

6. The monitoring device for road surface settlement according to claim 1, characterized in that: The top of the stabilizing cylinder (2) has a fully enclosed structure that fits around the outer circle of the calibration rod (5), and a locking ring (8) is fixedly installed on the calibration rod (5).

7. The monitoring device for road surface settlement according to claim 1, characterized in that: Scale lines are provided on the stabilizing cylinder (2) to assist in observing the position changes of the secondary calibration ball (3) and the positive calibration ball (4).

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