Roadbed settlement monitoring device

Abstract

The invention belongs to the technical field of engineering surveying and monitoring, and provides a roadbed settlement monitoring device which comprises a settlement plate, a fixed observation rod and a protective sleeve, the fixed observation rod is fixedly installed on the settlement plate, the protective sleeve is arranged on the outer side of the fixed observation rod in a sleeving mode, a vertical observation assembly is further installed on the settlement plate, and the vertical observation assembly is connected with the fixed observation rod. The vertical observation assembly is mounted in the center of the settlement plate, and the output end of the vertical observation assembly is always in a vertical state; the number of the fixed observation rods is multiple, and the multiple fixed observation rods are evenly arranged around the vertical observation assembly. According to the invention, the vertical observation assembly is arranged and is installed at the center position of the settlement plate, and the output end of the vertical observation assembly is always in a vertical state, so that even if the roadbed is inclined and settled, the inclination of the roadbed can be observed by measuring the included angle between the output end of the vertical observation assembly and the fixed observation rod; therefore, the vertical settlement data of the central part of the settlement plate can be accurately measured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of engineering surveying and monitoring, and particularly relates to a roadbed settlement monitoring device. BACKGROUND

[0002] With the continuous improvement of road construction in China, the rapid development of social economy, and the sharp increase in the number of private cars, road traffic safety is particularly concerned today, and a large part of traffic accidents is caused by the road conditions. The settlement of the roadbed seriously affects the road conditions of the road surface. When the roadbed settles, the road surface may collapse, tilt or appear concave. Such conditions are the main factors causing road traffic accidents. Therefore, to avoid such incidents, preventive measures need to be taken during road construction. Therefore, during the roadbed filling process, the settlement of the roadbed needs to be monitored to prevent or solve problems in a timely manner.

[0003] At present, the settlement of the roadbed is mostly monitored by the settlement plate method, which has simple structure and low cost and is commonly used for settlement monitoring during construction.

[0004] However, after the settlement plate is buried in the soil roadbed, the settlement of the roadbed may cause the settlement plate to tilt, causing the level line of the observation rod to tilt, and then affecting the detection of the vertical settlement value of the roadbed, making it difficult to directly monitor the vertical settlement of the roadbed. SUMMARY

[0005] The present application aims to provide a roadbed settlement monitoring device to solve the technical problem of the existing technology that the settlement plate tilts and makes it difficult to directly monitor the vertical settlement of the roadbed.

[0006] The present application is implemented as follows: a roadbed settlement monitoring device includes a settlement plate and a fixed observation rod, the fixed observation rod is fixedly installed on the settlement plate, and a protective sleeve is provided on the outer side of the fixed observation rod.

[0007] A vertical observation assembly is also installed on the settlement plate, the vertical observation assembly is installed at the center of the settlement plate, and the output end of the vertical observation assembly is always in a vertical state. Therefore, even if the roadbed tilts and settles, the settlement data of the central part of the settlement plate can be accurately measured by the vertical observation assembly, and the vertical settlement of the roadbed can be directly monitored.

[0008] At this time, the fixed observation rod has multiple fixed observation rods, and the multiple fixed observation rods are uniformly arranged around the vertical observation assembly. The fixed observation rod tilts with the settlement plate, and then the angle of the roadbed tilt and settlement can be measured through the included angle between the fixed observation rod and the vertical observation assembly, so that the settlement of the roadbed can be more accurately calculated by the staff.

[0009] Further technical solutions: the vertical observation assembly includes a base fixedly installed on the settlement plate, a spherical groove is formed in the top of the base, a gravity center hemisphere is matched with the spherical groove, lubricating oil is arranged between the spherical groove and the gravity center hemisphere to avoid the gravity center hemisphere from being stuck, and the top of the gravity center hemisphere is fixedly installed with a vertical observation rod.

[0010] Further technical solutions: the vertical observation assembly further includes a lubricating assembly installed on the base, and the lubricating assembly is used for outputting lubricating oil into the spherical groove when the settlement plate is inclined.

[0011] In order to make the lubricating oil penetrate between the gravity center hemisphere and the base smoothly, a plurality of oil grooves are formed in the surface of the gravity center hemisphere, the lubricating oil penetrates into the spherical groove along the oil grooves, so that the gravity center hemisphere and the vertical observation rod can be returned to the normal position smoothly, and the measurement accuracy is improved.

[0012] Further technical solutions: the lubricating assembly includes a first mounting frame fixedly installed on the base, an oil bag is installed in the first mounting frame, the oil bag is filled with lubricating oil, a plurality of one-way valves are arranged on the inner side of the oil bag, the end of the one-way valve is located above the gravity center hemisphere, a water cavity is formed in the base, the water cavity is filled with liquid, the density of the liquid is greater than that of the lubricating oil, a plurality of extrusion rods are vertically slidably installed on the base, one end of the extrusion rod located in the water cavity is connected with a floating plate, the other end of the extrusion rod abuts against the bottom of the oil bag, and the liquid surface of the liquid is just above the top of the floating plate.

[0013] Further technical solutions: the protective sleeve includes a barrel and a barrel cap, the barrel is sleeved on the outer side of the fixed observation rod, and the barrel cap is installed on the top of the barrel.

[0014] Further technical solutions: a movable observation assembly is installed between a plurality of fixed observation rods, one end of the movable observation assembly abuts against the inner wall of the protective sleeve, the output end of the movable observation assembly can move with the protective sleeve, the angle between the output end of the movable observation assembly and the vertical observation rod is measured, the inclination angle of the protective sleeve is determined, and then the inclination of the surface soil layer can be calculated.

[0015] Further technical solutions: the movable observation assembly comprises a mounting ring fixedly connected between the plurality of fixed observation rods, the axis of the mounting ring and the axis of the vertical observation rod coincide initially, a plurality of spherical mortars are fixedly connected on the mounting ring, a spherical joint is matched in the interior of each of the plurality of spherical mortars, each of the spherical joints is fixedly connected with a movable observation rod, a connecting sleeve is fixedly installed on each of the plurality of movable observation rods, and a connecting plate is hingedly connected between each two adjacent connecting sleeves, so that the axes of the plurality of movable observation rods always remain parallel.

[0016] A limiting mechanism is installed on each of the movable observation rods, the output end of the limiting mechanism is perpendicular to the axis of the movable observation rod, the output end of the limiting mechanism is in elastic abutment with the inner wall of the protective sleeve, when the protective sleeve is inclined, the protective sleeve drives the movable observation rod to rotate through the limiting mechanism, so that the axis of the movable observation rod is parallel to the side wall of the protective sleeve, and the inclination of the protective sleeve can be calculated through the included angle between the movable observation rod and the vertical observation rod.

[0017] Further technical solutions: the limiting mechanism comprises a second mounting frame fixedly connected on the movable observation rod, a fixed guide cylinder is fixedly connected on the second mounting frame, a sliding block is slidingly installed in the interior of the fixed guide cylinder, the movement direction of the sliding block is perpendicular to the axis of the movable observation rod, a limiting roller is fixedly connected at the end of the sliding block, the axis of the limiting roller is parallel to the axis of the movable observation rod, and a compression spring is connected between the other end of the sliding block and the fixed guide cylinder.

[0018] Compared with the prior art, the beneficial effects of the present application are as follows:

[0019] 1、The present application, by setting up a vertical observation assembly, installs the vertical observation assembly at the center position of the settlement plate, and the output end of the vertical observation assembly always remains in a vertical state, so that even if the roadbed is inclined and settled, the vertical settlement data of the central part of the settlement plate can be accurately measured by measuring the included angle between the output end of the vertical observation assembly and the fixed observation rod;

[0020] 2、The present application, by setting up a lubricating assembly, when the settlement plate is inclined, the liquid in the base will flow relative to the inclined position of the base, then the buoyant liquid will push the floating plate and the extrusion rod to rise, the extrusion rod extrudes the oil bag, so that the lubricating oil in the oil bag is extruded from the one-way valve to the barycentric hemisphere, and then the lubricating oil seeps from the oil groove between the barycentric hemisphere and the base, thereby reducing the friction between the barycentric hemisphere and the base, making the movement of the barycentric hemisphere more smooth, and timely returning the vertical observation rod to avoid errors in the settlement monitoring results;

[0021] 3、The application, by setting the movable observation assembly, makes one end of the movable observation assembly abut against the inner wall of the protective sleeve, so that the output end of the movable observation assembly can move with the protective sleeve, the angle between the output end of the movable observation assembly and the vertical observation rod is measured, the inclination angle of the protective sleeve is judged, then the inclination of the surface soil layer can be calculated, so that the roadbed settlement monitoring result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the application.

[0023] Figure 2 It is a schematic diagram of the installation structure of the fixed observation rod, the vertical observation assembly and the movable observation assembly in the application.

[0024] Figure 3 It is a schematic diagram of the overall partial cross-sectional structure of the application.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the vertical observation assembly in the application.

[0026] Figure 5 It is a schematic diagram of the partial structure of the movable observation assembly in the application.

[0027] Figure 6 It is a schematic diagram of the partial structure of the movable observation assembly in the application. Figure 5 It is an enlarged schematic diagram of A in the middle.

[0028] In the drawings: 1, settlement plate; 2, protective sleeve; 21, barrel body; 22, barrel cap; 3, fixed observation rod; 4, vertical observation assembly; 41, base; 42, gravity center hemisphere; 43, vertical observation rod; 44, lubrication assembly; 441, one-way valve; 442, first mounting bracket; 443, oil bag; 444, extrusion rod; 445, floating plate; 446, water cavity; 45, oil groove; 5, movable observation assembly; 51, movable observation rod; 52, connecting sleeve; 53, connecting plate; 54, spherical socket; 55, mounting ring; 56, limiting mechanism; 561, second mounting bracket; 562, compression spring; 563, fixed guide cylinder; 564, sliding block; 565, limiting roller; 57, spherical joint. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the application more clear and explicit, the application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0030] The specific implementation of the application is described in detail below in combination with specific examples.

[0031] As Figures 1-6As shown, the roadbed settlement monitoring device provided by the present application comprises a settlement plate 1 and a fixed observation rod 3, the fixed observation rod 3 is fixedly installed on the settlement plate 1, and a protective sleeve 2 is arranged on the outer side of the fixed observation rod 3;

[0032] The settlement plate 1 is further provided with a vertical observation assembly 4, the vertical observation assembly 4 is installed at the center position of the settlement plate 1, and the output end of the vertical observation assembly 4 is always in a vertical state, so that even if the roadbed appears to be inclined and settled, the settlement data of the central part of the settlement plate 1 can be accurately measured through the vertical observation assembly 4, and the vertical settlement of the roadbed can be directly monitored.

[0033] At this time, the fixed observation rod 3 is provided in multiple, the multiple fixed observation rods 3 are uniformly arranged around the vertical observation assembly 4, the fixed observation rod 3 will be inclined with the settlement plate 1, and then the angle between the fixed observation rod 3 and the vertical observation assembly 4 can be measured to measure the angle of the inclined settlement of the roadbed, so that the settlement of the roadbed can be more accurately calculated by the staff.

[0034] Specifically, the settlement plate 1 is placed flat on the monitoring point, then the roadbed is filled, after a period of time, the height of the vertical observation assembly 4 is measured by using a total station at the reference point, the angle of the fixed observation rod 3 is measured, then the vertical observation assembly 4 and the fixed observation rod 3 are connected, the roadbed is filled again, after a period of time, the height of the vertical observation assembly 4 is measured again, and the angle of the fixed observation rod 3 is measured, so that the settlement data of the roadbed can be calculated.

[0035] The roadbed settlement monitoring device provided by the present application, in the embodiment, the vertical observation assembly 4 comprises a base 41 fixedly installed on the settlement plate 1, a spherical groove is formed in the top of the base 41, a gravity center hemisphere 42 is matched in the spherical groove, lubricating oil is arranged between the spherical groove and the gravity center hemisphere 42, so as to avoid the gravity center hemisphere 42 from being stuck, a vertical observation rod 43 is fixedly installed on the top of the gravity center hemisphere 42, the mass of the gravity center hemisphere 42 is much larger than the mass of the vertical observation rod 43, for example, the weight of the gravity center hemisphere 42 is 10-15 times the weight of the vertical observation rod 43, the gravity center hemisphere 42 is made of a material with large density, such as metal, the vertical observation rod 43 is made of a material with small density, such as plastic, and the vertical observation rod 43 is a hollow column made of plastic.

[0036] Specifically, when the settlement plate 1 is inclined to settle, under the action of gravity, the gravity center hemisphere 42 will rotate relative to the base 41, so that the vertical observation rod 43 always remains vertical (similar to a tumbler), and then the height of the vertical observation rod 43 is measured, so that the distance of the central settlement of the settlement plate 1 is calculated, so that the measurement data is not affected by the inclination angle of the settlement plate 1, and the measurement data is more accurate.

[0037] Meanwhile, since the fixed observation rod 3 inclines along with the settlement plate 1, the angle between the fixed observation rod 3 and the vertical observation rod 43 is measured, so that the inclination angle of the settlement plate 1 is calculated, and the subgrade settlement condition is calculated.

[0038] The lubricating assembly 44 is used for outputting lubricating oil into the spherical groove when the settlement plate 1 is inclined.

[0039] In order to make the lubricating oil penetrate between the gravity center hemisphere 42 and the base 41 smoothly, a plurality of oil grooves 45 are formed in the surface of the gravity center hemisphere 42, and the lubricating oil penetrates into the spherical groove along the oil grooves 45, so that the gravity center hemisphere 42 and the vertical observation rod 43 can be returned to the vertical position smoothly, and the measurement accuracy is improved.

[0040] The lubricating assembly 44 includes a first mounting frame 442 fixedly mounted on the base 41, an oil bag 443 is mounted in the first mounting frame 442, the oil bag 443 is filled with lubricating oil, a plurality of one-way valves 441 are arranged on the inner side of the oil bag 443, the end of the one-way valve 441 is located above the gravity center hemisphere 42, a water cavity 446 is formed in the base 41, a liquid is contained in the water cavity 446, the density of the liquid is greater than that of the lubricating oil, a plurality of extrusion rods 444 are vertically slidably mounted on the base 41, one end of the extrusion rod 444 connected with a floating plate 445 is located in the water cavity 446, the other end of the extrusion rod 444 abuts against the bottom of the oil bag 443, and the liquid surface is just above the top of the floating plate 445.

[0041] Specifically, the oil bag 443 is made of inelastic flexible material, such as ultra-high molecular weight polyethylene (UHMWPE), polytetrafluoroethylene (PTFE), polyether sulfone (PESU) and the like, and the volume of the lubricating oil accounts for 95% to 98% of the volume of the oil bag 443.

[0042] The density of lubricating oil is generally between 0.85 g / cm3 and 0.95 g / cm3, therefore, the liquid can be brine (density greater than 1.2 g / cm3) or fluorinated liquid (density greater than 1.8 g / cm3), etc., under the same displacement volume, the greater the density of the liquid, the greater the buoyancy, therefore, when the floating plate 445 is inclined relative to the liquid surface, the floating plate 445 can extrude the oil bag 443 through the extrusion rod 444, and extrude the lubricating oil.

[0043] Further, the first mounting frame 442 is composed of four iron rings and a plurality of buckles, the buckle is a U-shaped buckle, the four iron rings are divided into upper and lower two layers, and are coaxially arranged, the plurality of buckles are connected between the four iron rings to fix the iron rings, the oil bag 443 is installed between the upper and lower two layers of iron rings, and one end of the extrusion rod 444 passes between the lower two iron rings and abuts against the bottom of the oil bag 443.

[0044] When the settlement plate 1 is inclined, the settlement plate 1 drives the base 41 to be inclined, the liquid in the base 41 flows relative to the inclined direction of the base 41, then the buoyant liquid pushes the floating plate 445 and the extrusion rod 444 to rise, the extrusion rod 444 extrudes the oil bag 443, so that the lubricating oil in the oil bag 443 is extruded from the one-way valve 441 to the gravity center hemisphere 42, and then the lubricating oil seeps into the gravity center hemisphere 42 and between the base 41 from the oil groove 45.

[0045] The roadbed settlement monitoring device provided by the application comprises a protection sleeve 2, a fixed observation rod 3, a vertical observation assembly 4 and a base 41.

[0046] Specifically, the barrel body 21 is used for wrapping the fixed observation rod 3 and the vertical observation assembly 4, and isolating the friction of the filling soil and the construction damage, when the roadbed is filled, the top of the barrel cap 22 is higher than the filling surface by more than 20 cm, so as to prevent burying, and when the fixed observation rod 3 and the vertical observation rod 43 are connected, the height connection is also performed on the barrel body 21, so as to avoid burying of the device.

[0047] The roadbed settlement monitoring device provided by the application, in the process of roadbed settlement, with the occurrence of the inclined settlement of the inside of the roadbed, the soil layer on the surface of the roadbed also has the inclined settlement, and the surface soil layer can carry the protection sleeve 2 to incline, at present, the staff cannot accurately measure the inclination of the surface soil layer, which will affect the monitoring result of the roadbed settlement, therefore, in the embodiment, a movable observation assembly 5 is installed between the fixed observation rods 3, one end of the movable observation assembly 5 abuts against the inner wall of the protection sleeve 2, the output end of the movable observation assembly 5 can move with the protection sleeve 2, the angle between the output end of the movable observation assembly 5 and the vertical observation rod 43 is measured, so as to judge the inclination angle of the protection sleeve 2, and then the inclination of the surface soil layer can be calculated.

[0048] The roadbed settlement monitoring device provided by the application comprises a fixed observation rod 3, a protection sleeve 2 and an activity observation assembly 5, wherein the fixed observation rod 3 is fixedly connected to the protection sleeve 2, and the activity observation assembly 5 is fixedly connected to the protection sleeve 2.

[0049] The activity observation assembly 5 comprises a mounting ring 55 fixedly connected between the fixed observation rods 3, a plurality of spherical mortars 54 fixedly connected to the mounting ring 55, a spherical joint 57 matched in the spherical mortar 54, an activity observation rod 51 fixedly connected to the spherical joint 57, a connecting sleeve 52 fixedly installed on the activity observation rod 51, and a connecting plate 53 hingedly connected between the connecting sleeves 52.

[0050] Specifically, the activity observation rod 51 and the connecting plate 53 form a three-dimensional four-bar linkage structure, so that the activity observation rod 51 can be deformed in any direction, and the fixed observation rod 3 can be rotated relative to the activity observation rod 51 under the cooperation of the spherical joint 57 and the spherical mortar 54, thereby avoiding interference between the activity observation rod 51 and the fixed observation rod 3.

[0051] When the protection sleeve 2 is inclined, the limiting mechanism 56 drives the activity observation rod 51 to move with the protection sleeve 2, and when measuring, the angle between the activity observation rod 51 and the vertical observation rod 43 is measured to calculate the inclination angle of the protection sleeve 2, so that the roadbed settlement monitoring result is more accurate.

[0052] The limiting mechanism 56 comprises a second mounting frame 561 fixedly connected to the activity observation rod 51, a fixed guide cylinder 563 fixedly connected to the second mounting frame 561, a sliding block 564 slidably installed in the fixed guide cylinder 563, a limiting roller 565 fixedly connected to the end of the sliding block 564, and a compression spring 562 connected between the other end of the sliding block 564 and the fixed guide cylinder 563.

[0053] Specifically, after the protective sleeve 2 is sleeved outside the fixed observation rod 3, the limiting roller 565 abuts against the inner wall of the protective sleeve 2, so that the axis of the movable observation rod 51 and the inner wall of the protective sleeve 2 are parallel, and when the protective sleeve 2 is inclined, the limiting roller 565 always abuts against the protective sleeve 2 under the action of the compression spring 562, so that the movable observation rod 51 can always keep parallel with the protective sleeve 2.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0055] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A roadbed settlement monitoring device, comprising a settlement plate, a fixed observation rod, and a protective sleeve, wherein the fixed observation rod is fixedly installed on the settlement plate, and the protective sleeve is sleeved on the outside of the fixed observation rod, characterized in that, A vertical observation component is also installed on the settlement plate. The vertical observation component is installed at the center of the settlement plate, and the output end of the vertical observation component is always in a vertical state. There are multiple fixed observation rods, which are evenly arranged around the vertical observation component. The fixed observation rods are used to indicate the inclination of the settlement plate.

2. The roadbed settlement monitoring device according to claim 1, characterized in that, The vertical observation assembly includes a base fixedly installed on a settlement plate. A spherical groove is provided on the top of the base, and a center of gravity hemisphere fits inside the spherical groove. A vertical observation rod is fixedly installed on the top of the center of gravity hemisphere, and the mass of the center of gravity hemisphere is 10 to 15 times the mass of the vertical observation rod.

3. The roadbed settlement monitoring device according to claim 2, characterized in that, The vertical observation assembly also includes a lubrication assembly, which is mounted on the base and is used to output lubricating oil into the spherical groove when the settling plate is tilted. The surface of the centroidal hemisphere has multiple oil grooves.

4. The roadbed settlement monitoring device according to claim 3, characterized in that, The lubrication assembly includes a first mounting bracket fixedly installed on a base. An oil bladder is installed inside the first mounting bracket. The oil bladder is filled with lubricating oil, and the volume of the lubricating oil occupies 95% to 98% of the oil bladder's volume. Multiple one-way valves are provided on the inner side of the oil bladder, with the ends of the one-way valves located above the center of gravity hemisphere. A water cavity is opened inside the base, and the water cavity contains a liquid with a density greater than that of the lubricating oil. Multiple extrusion rods are vertically slidably installed on the base. One end of each extrusion rod inside the water cavity is connected to a float plate, and the other end of the extrusion rod abuts against the bottom of the oil bladder. The liquid level is level with the top of the float plate.

5. The roadbed settlement monitoring device according to claim 1, characterized in that, The protective sleeve includes a body and a cap. The body is fitted onto the outer side of the fixed observation rod, and the cap is installed on the top of the body.

6. The roadbed settlement monitoring device according to claim 1, characterized in that, A movable observation component is installed between multiple fixed observation rods. One end of the movable observation component abuts against the inner wall of the protective sleeve, and the output end of the movable observation component can move with the protective sleeve.

7. The roadbed settlement monitoring device according to claim 6, characterized in that, The active observation assembly includes a mounting ring fixedly connected between multiple fixed observation rods. Multiple spherical sockets are fixedly connected to the mounting ring. Each of the multiple spherical sockets has a spherical joint fitted inside. An active observation rod is fixedly connected to each of the multiple active observation rods. A connecting sleeve is fixedly installed on each of the multiple active observation rods. A connecting plate is hinged between each pair of adjacent connecting sleeves. Each of the movable observation rods is equipped with a limiting mechanism. The output end of the limiting mechanism is perpendicular to the axis of the movable observation rod, and the output end of the limiting mechanism elastically abuts against the inner wall of the protective sleeve. The limiting mechanism is used to make the axis of the movable observation rod parallel to the side wall of the protective sleeve.

8. The roadbed settlement monitoring device according to claim 7, characterized in that, The limiting mechanism includes a second mounting bracket fixedly connected to the movable observation rod, a fixed guide cylinder fixedly connected to the second mounting bracket, a slider slidably installed inside the fixed guide cylinder, the movement direction of the slider being perpendicular to the axis of the movable observation rod, a limiting roller fixedly connected to the end of the slider, the axis of the limiting roller being parallel to the axis of the movable observation rod, and a compression spring connected between the other end of the slider and the fixed guide cylinder.

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