Stone-filled roadbed settlement difference observation device

Abstract

The utility model discloses a device for observing the settlement difference of a rock-filled roadbed, which relates to the technical field of roadbed construction and comprises a steel ball which has enough rigidity, can bear the vibration and pressure of a road roller with the maximum of 39t, and is embedded in a rock ballast gap before a rock-filled embankment is rolled. The telemeter rod is a 4m telescopic telemeter rod, the shortest telemeter rod can be contracted to 1m, and the telemeter rod acts on the steel ball and is used for reading the height difference; the infrared ray gradienter is an out-of-red ray gradienter which is a Lyocell 8881S out-of-red ray gradienter, the laser wavelength is 635 nm, the precision is + 0.2 mm / m, and the infrared ray gradienter has an oblique line function, carries a tripod and is used for a supporting pad of the out-of-red ray gradienter; and the infrared baffle adopts a plastic plate and is used for acquiring the infrared position and measuring the elevation. The subgrade settlement difference measuring device can be suitable for measuring settlement difference in the subgrade filling process, can directly obtain numerical values in the filling process, solves the problem of measuring elevation in the rolling process, and reduces process errors.

Description

TECHNICAL FIELD

[0001] The utility model relates to embankment technology field of highway engineering, concretely relates to a kind of filling rock embankment settlement difference observation device. BACKGROUND

[0002] Because traditional settlement difference observation method has the defects such as insufficient observation accuracy, insufficient speed, abnormal mutation of individual point observation data, to solve the above problems, combined with the project engineering example, by existing advanced equipment, adopts the method of embedding steel ball in filling rock embankment settlement difference observation. Provide new ideas for future similar engineering construction management, and achieve good social and economic benefits.

[0003] In the process of embankment construction, according to the traditional filling rock embankment settlement difference observation method, after the static pressure of road roller, 7-9 measuring points are restored at the interval of 5m in the left and right amplitude according to the middle stake, the elevation h1, h2…h7 is measured by level, and the elevation of loose paving surface of the section is recorded. The loose paving thickness can be calculated according to the elevation before filling. Each time of rolling needs to find the point again, restore the measuring point, and the personnel measurement is troublesome. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a kind of filling rock embankment settlement difference observation device, by the device, only infrared level scanning is needed after each rolling, without personnel base point recovery, when the raw material changes, test road construction is needed, the pile foundation is greatly improved construction efficiency, and the compaction equipment is reduced.

[0005] A kind of filling rock embankment settlement difference observation device, characterized by comprising:

[0006] Steel ball, the steel ball size is 5cm in diameter, the surface is rough surface, reduces the position poking in the process of rolling;

[0007] Tower scale, the tower scale is measuring equipment tower scale, with adjusting level function;

[0008] Red line infrared level, the red line infrared level requires laser wavelength 635nm, accuracy +0.2mm / m, with oblique line function, carries tripod;

[0009] Infrared baffle, the infrared baffle is mainly plastic plate,

[0010] The steel ball is placed on filling stone slag;

[0011] The tower scale stands on the steel ball, for reading and measuring height difference;

[0012] The infrared level is erected outside filling area by tripod, and the position is selected to be not more than 3m with single-layer filling height difference;

[0013] The infrared baffle is used to collect infrared beams.

[0014] According to the settlement difference observation device of the rockfill subgrade described in this application, the error caused by elevation measurement during the embankment filling and compaction process can be reduced by using a steel ball and an infrared level.

[0015] According to the settlement difference observation device for rock-filled roadbed described in this application, the infrared level can improve the settlement difference measurement efficiency.

[0016] According to the settlement difference observation device for rock-filled roadbed described in this application, the steel ball is easy to carry and install, and can also be used as a zone identification mark.

[0017] This utility model discloses a settlement difference observation device for rockfill subgrade, with the following improvements and effects: The device includes: a steel ball: possessing sufficient rigidity to withstand the vibration and pressure of a 39t road roller, embedded in the gaps of the stone embankment before compaction; a telescopic level: a 4m telescopic level, which can be retracted to a minimum of 1m, acting on the steel ball to read the elevation difference; an infrared level: a Leisai 8881S infrared level with a laser wavelength of 635nm, an accuracy of +0.2mm / m, and a slant line function, equipped with a tripod for supporting the infrared level; and an infrared baffle: made of plastic, used to obtain the infrared position and measure the elevation. This utility model is applicable to the measurement of settlement difference during subgrade filling, enabling direct acquisition of values ​​during the filling process, solving the problem of measuring elevation during compaction, and reducing process errors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram showing the location of the structural steel balls. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] First, draw a grid in the construction area. After the bulldozer flattens the stone chips (rubble), place steel balls at the intersections with a longitudinal spacing of 40m and a transverse spacing according to the grid spacing.

[0022] Outside the construction area, erect a tripod, install an infrared level, and the erecting position is not more than 15m away from the construction area, and the height difference is not more than 3m, so as to reduce the distance error.

[0023] After each rolling, a tower scale is erected on the steel ball, an infrared baffle is arranged at 1m behind the tower scale, reading is performed by leaning a level against the tower scale, the infrared level parameter is adjusted according to the weather condition, and it is guaranteed that the laser source is visible to the naked eye.

[0024] The above operation is repeated each time the rolling is performed, and for the convenience of operation, the baffle can be fixed on the tower scale.

[0025] Finally, it should be noted that: the embodiments disclosed in the utility model are only the preferred embodiments of the utility model, and are used for explaining the technical scheme of the utility model, but not for limiting it; although the utility model has been explained in detail by referring to the foregoing embodiments, those skilled in the art should understand that; the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model.

Claims

1. A rock-filled subgrade settlement difference observation device, characterized by, Comprise: Steel ball, the steel ball is 5 cm in diameter, the surface is rough, reduces the position of the rolling process; Tower ruler, the tower ruler is a measuring device tower ruler, with adjusting horizontal function; Infrared level, the infrared level requires laser wavelength 635 nm, accuracy +0.2 mm / m, with oblique line function, carry tripod; Infrared baffle, the infrared baffle is mainly plastic plate, The steel ball is placed on the filling slag; The tower ruler is on the steel ball, for reading and measuring height difference; The infrared level is erected outside the filling area through tripod, and the position is selected to be not more than 3 m with single-layer filling height difference; The infrared baffle is used to collect infrared light beam.

2. The rock-filled subgrade settlement difference observation device according to claim 1, characterized in that, Through the steel ball and the infrared level, the error caused by the height measurement in the embankment filling and rolling process can be reduced.

3. The rock-filled subgrade settlement difference observation device according to claim 1, characterized by The infrared level can improve the measurement efficiency of settlement difference.

4. The rock-filled subgrade settlement difference observation device according to claim 1, characterized by The steel ball is convenient to carry and install, and can also be used as a partition identification mark.

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