CN210916952U - Laser monitoring instrument for monitoring road grouting - Google Patents
Laser monitoring instrument for monitoring road grouting Download PDFInfo
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- CN210916952U CN210916952U CN201921620789.5U CN201921620789U CN210916952U CN 210916952 U CN210916952 U CN 210916952U CN 201921620789 U CN201921620789 U CN 201921620789U CN 210916952 U CN210916952 U CN 210916952U
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Abstract
The utility model discloses a control road slip casting's laser monitoring appearance in the road repair field. This kind of laser monitoring appearance of control road slip casting includes fixing device, laser displacement sensor and controller, laser displacement sensor passes through fixing device suspends in the road surface top of awaiting measuring and measures the displacement on road surface, laser displacement sensor with the controller electricity is connected and the information transfer that will record gives the controller, and the road slip casting admission pressure can be confirmed to the sudden change point of the displacement volume of road slip casting in-process road surface lifting to this kind of laser monitoring appearance of control road slip casting to confirm the road slip casting pressure in the repair work, promote the road repair effect.
Description
The present application claims priority from the chinese patent application filed by the chinese patent office on 19/06/2019 under the name of 201920930823.2 entitled "a road grouting laser monitor," the entire contents of which are incorporated herein by reference.
Technical Field
The utility model relates to a road repair technical field, in particular to laser monitoring appearance of control road slip casting.
Background
With the sharp increase of traffic volume, increasingly serious overload overrun and the influence of climatic environment and soft soil geological conditions, diseases of different degrees appear on some roads, and the service performance of the road surface is seriously influenced. The causes of diseases on most roads in China have an inseparable relationship with foundation problems. And after the highway subgrade is damaged, the repair is difficult. At present, a digging repair mode is generally adopted, namely a surface layer and a base layer are all dug, and a road surface is newly built after the road base is treated and repaired. The repair mode has the advantages of large project amount, high maintenance cost, long repair time and obvious influence on traffic, and the other proposal is to adopt modified geopolymer grouting treatment to the roadbed and the base course, the basic principle of the method is to utilize grouting equipment, the mixed slurry (geopolymer) is pressed into roadbed or base layer under the action of pressure, and the modified geopolymer slurry is pressed into base layer and roadbed by means of compaction, permeation, diffusion and cleavage action, discharging air or water, filling and bonding the void and loose parts of the base layer, compacting roadbed soil, meanwhile, the road surface and the soil body are subjected to chemical reaction to generate a network-shaped stone body, so that a road structure with high strength, compactness and high water stability is formed, thereby improving the resilience modulus of the base layer and the roadbed, improving the integral rigidity and the water stability of the road, and improving the comprehensive bearing capacity and the deformation resistance of the pavement structure.
However, it is a new problem how to determine the grouting pressure of the road, and if the grouting pressure is too low, the diffusion capability of the grout is weak, the repair effect is poor, and if the grouting pressure is too high, the road structure and the foundation are damaged, so that the allowable pressure of the road grouting is determined, so that the diffusion capability of the grout is enhanced as much as possible when the road is repaired by grouting, thereby better filling and bonding the void and loose parts of the base layer, compacting the foundation soil, extruding more air or water, and improving the strength of the stone body become the key to improve the road repair effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can conveniently judge road slip casting laser monitoring appearance of road slip casting admission pressure.
In order to realize the above utility model purpose, the utility model relates to a following technical scheme that laser monitoring appearance of control road slip casting adopted:
the utility model provides a control road slip casting's laser monitoring appearance, includes fixing device, laser displacement sensor and controller, laser displacement sensor passes through fixing device suspends in the road surface top of awaiting measuring and measures the displacement on road surface, laser displacement sensor with the controller electricity is connected and the information transfer who will record gives the controller. Compared with other measuring instruments such as a level gauge or a laser leveling instrument, continuous data or graphs of road lifting can be obtained by using the laser displacement sensor, so that the trend analysis of the road lifting is carried out, whether the road structure is damaged or not is accurately judged, and in addition, the data of the laser displacement sensor can be stored and analyzed, so that the method is more suitable for the conditions of road emergency at night or in preparation for hurried roads.
Further, still include alarm and display, the alarm with the display with the controller electricity is connected. The controller receives the information of the laser displacement sensor, the information is displayed on the display screen in a curve graph mode after being processed, the road displacement condition can be more visually seen compared with the traditional digital display, and if the controller judges that the road structure is damaged, the alarm is controlled to give an alarm.
Further, fixing device includes support and work arm, the support lower extreme is provided with the base, work arm one end is connected with the support upper end, and the other end perpendicular to support outwards extends, laser displacement sensor sets up on the work arm. The position of the laser displacement sensor is fixed through the support and the working arm.
Furthermore, a matched sliding rail and a sliding block are arranged below the working arm, the laser displacement sensor is fixedly connected with the sliding block, a set screw is arranged on the sliding block, and the set screw is used for limiting the relative displacement of the sliding block and the sliding rail. The laser displacement sensor is connected to the working arm in a sliding mode through the matching of the sliding block and the sliding rail, and meanwhile, the laser displacement sensor can be fixed to the working arm through the set screw, so that the position of the laser displacement sensor can be adjusted conveniently to monitor the road surface.
Further, the working arm is detachably connected to the bracket. The working arm can be separated from the bracket, thereby facilitating transportation and storage.
A road grouting allowable pressure measuring method comprises the road grouting laser monitor and grouting equipment, wherein a grouting port of the grouting equipment is provided with a hydraulic sensor, and the laser displacement sensor and the hydraulic sensor are electrically connected with a controller, and the method further comprises the following steps:
s1: preparing: basic road information is found out, the position of a grouting hole is designed, and the monitoring position of a laser displacement sensor is monitored, wherein the basic information comprises geological conditions, a designed pavement structure and construction quality conditions;
s2: drilling: drilling a grouting hole on the road according to the designed position of the grouting hole and arranging a grouting pipe in the grouting hole;
s3: monitoring: arranging a laser displacement sensor according to the monitoring position of the designed laser displacement sensor, constantly monitoring the displacement of the road pavement by the laser displacement sensor and transmitting displacement information L to a controller in real time;
s4: grouting: grouting into a grouting hole through grouting equipment, gradually increasing grouting pressure along with the time lapse, monitoring the grouting pressure by a hydraulic sensor and transmitting measured pressure information P to a controller, receiving and processing displacement information L and pressure information P transmitted by the laser displacement sensor and the hydraulic sensor in real time by the controller, comparing displacement information Ln and Ln +1 received before and after according to a set time interval delta t, if the values of Ln + 1-Ln are greater than a set value A, recording Ln, and simultaneously, obtaining pressure information Pn received at the same time as Ln as the road grouting allowable pressure, and executing S5;
s5: stopping slurry: stopping grouting, and removing grouting equipment;
s6: and data processing, namely determining the grouting pressure of the road repairing and reinforcing work according to the measured road grouting allowable pressure Pn, and simultaneously recording the road grouting allowable pressure under the region, the geology and the road structure by combining the road basic information to be used as a subsequent analysis database so as to play a guiding role in the subsequent repairing and reinforcing work on similar corresponding roads.
Further, different grouting hole positions and the monitoring position of the laser displacement sensor are redesigned by combining the basic road information, the steps S2-S5 are repeated, a plurality of grouting allowable pressures Pn are measured, the plurality of grouting allowable pressures Pn are analyzed in a comprehensive mode, and the grouting pressure of the road repairing and reinforcing work is determined.
When the value of Ln + 1-Ln is greater than the set value A, the lifting of the road surface is obvious, namely the road structure is damaged (exceeding the self weight and strength of the stratum) or the sizes of the roadbed and the base course layers and pores are enlarged or expanded, so that the pressure value Pn recorded at the same time point as the value of Ln is the grouting allowable pressure.
Compared with the prior art, the beneficial effects of the utility model reside in that: the method comprises the following steps that 1, a laser displacement sensor detects the displacement of the road surface, the displacement is processed by a controller and then displayed on a display screen in a curve graph, the observation is more acute and more visual than the traditional observation, and meanwhile, displacement data are recorded in the controller so as to be convenient for subsequent calling; 2, aiming at roads with different regions, different geologies and different structures, the method can measure the allowable road grouting pressure, and grouting can enhance the diffusion capacity of grout as much as possible according to the allowable road grouting pressure, so that the void and loose parts of the base layer can be better filled and bonded, the roadbed soil is compacted, more air or moisture is extruded, the strength of the stone body is improved, and the road grouting reinforcement quality is greatly improved; and 3, collecting road information of different regions, different geologies and different structures and corresponding road grouting allowable pressures respectively, guiding subsequent repair and reinforcement work on similar corresponding roads, and saving the measurement time and cost of the road grouting allowable pressure during road construction for a new road section.
Drawings
Fig. 1 is a schematic structural view of a laser monitor for monitoring road grouting according to the present invention;
fig. 2 is a line graph of road surface displacement over time.
The device comprises a support 1, a base 11, a working arm 2, a sliding rail 21, a sliding block 22, a set screw 221, a laser displacement sensor 3, a road to be measured 4 and a grouting hole 5.
Detailed Description
The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "vertical" and "outer peripheral surface" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described herein can be combined and combined by those skilled in the art without conflicting aspects.
As shown in fig. 1, a laser monitoring instrument for monitoring road grouting, which comprises a support 1, a working arm 2, a laser displacement sensor 3 and a controller, wherein a base 11 is fixed at the lower end of the support, one end of the working arm is connected with the upper end of the support through a bolt, the other end of the working arm extends outwards perpendicular to the support, a sliding rail 21 is arranged on the working arm, a sliding block 22 is installed on the sliding rail, the laser displacement sensor is fixedly connected with the sliding block, a bolt hole is formed in the contact part of the sliding block and the working arm, a set screw 221 is arranged in the bolt hole and used for limiting the relative displacement of the sliding block and the sliding rail, the laser displacement sensor suspends above a road to be measured 4 and measures the displacement of the road surface of an accessory of a grouting hole 5 through the working arm, and is electrically.
The laser monitoring instrument for monitoring road grouting further comprises an alarm and a display, the alarm and the display are electrically connected with the controller and controlled by the controller, the controller receives information of the laser displacement sensor, the information is displayed on a display screen in a curve graph mode after being processed, the road displacement condition is more visually seen than that of traditional digital display, and the alarm is controlled to give an alarm if the controller judges that a road structure is damaged.
In this embodiment, the controller is a KV-3000 PLC controller.
The method for measuring the allowable pressure of road grouting comprises a laser displacement sensor and grouting equipment, wherein the laser displacement sensor monitors the displacement of a road surface, a grouting opening of the grouting equipment is provided with a hydraulic sensor, and the laser displacement sensor and the hydraulic sensor are both electrically connected with a controller, and the method further comprises the following steps:
s1: preparing: finding out basic road information, designing the position of a grouting hole and monitoring the position of a laser displacement sensor, wherein the basic information comprises geological conditions, a designed pavement structure and construction quality conditions;
s2: drilling: drilling a grouting hole on the road according to the designed position of the grouting hole, inserting a grouting pipe into the grouting hole, wherein when a vibration pipe sinking method or a hydraulic pipe sinking method is adopted, the grouting pipe is a steel pipe, and the front end of the grouting pipe is suitable for adopting a detachable conical head;
s3: monitoring: arranging a laser displacement sensor according to the monitoring position of the designed laser displacement sensor, setting the initial data of the laser displacement sensor to be 0, monitoring the displacement of the road pavement by the laser displacement sensor at any time and transmitting the displacement information L to the controller in real time;
s4: grouting: grouting into a grouting hole through grouting equipment, gradually increasing grouting pressure along with the time lapse, monitoring the grouting pressure by a hydraulic sensor and transmitting measured pressure information P to a controller, receiving displacement information L and pressure information P transmitted by the laser displacement sensor and the hydraulic sensor in real time by the controller and processing the displacement information L and the pressure information P to form a line graph as shown in fig. 2, comparing displacement information Ln and Ln +1 received before and after the controller according to a set time interval delta t, if the value of Ln + 1-Ln is greater than a set value A, recording Ln, and simultaneously, obtaining pressure information Pn received at the same time as Ln as the road grouting allowable pressure, and executing S5;
s5: stopping slurry: stopping grouting, and removing grouting equipment;
s6: and (3) data processing, namely determining the grouting pressure of the road repairing and reinforcing work according to the measured road grouting allowable pressure Pn, and simultaneously recording the road grouting allowable pressure under the region, the geology and the road structure by combining the road basic information for subsequent analysis.
And redesigning different grouting hole positions and the monitoring position of the laser displacement sensor by combining the basic information of the road, repeating the steps S2-S5, measuring a plurality of grouting allowable pressures Pn, analyzing by combining the plurality of grouting allowable pressures Pn, and determining the grouting pressure of the road repairing and reinforcing work.
When the value of Ln + 1-Ln is greater than the set value A, the lifting of the road surface is obvious, namely the road structure is damaged (exceeding the self weight and strength of the stratum) or the sizes of the roadbed and the base course layers and pores are enlarged or expanded, so that the pressure value Pn recorded at the same time point as the Ln is the grouting allowable pressure, and the set value A can be determined by construction experience.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. The utility model provides a control road slip casting's laser monitoring appearance which characterized in that: including fixing device, laser displacement sensor and controller, laser displacement sensor passes through fixing device suspends in the road surface top of awaiting measuring and measures the displacement on road surface, laser displacement sensor with the controller electricity is connected and the information transfer that will record gives the controller, fixing device includes support and work arm, the support lower extreme is provided with the base, work arm one end is connected with shown support upper end, and the shown support of other end perpendicular to outwards extends, laser displacement sensor sets up on shown work arm.
2. The laser monitoring instrument for monitoring road grouting according to claim 1, characterized in that: the laser displacement sensor is characterized in that a matched sliding rail and a sliding block are arranged below the working arm, the laser displacement sensor is fixedly connected with the sliding block, and a set screw is arranged on the sliding block and used for limiting the relative displacement of the sliding block and the sliding rail.
3. The laser monitoring instrument for monitoring road grouting according to claim 2, characterized in that: the working arm is detachably connected to the bracket.
4. The laser monitoring instrument for monitoring road grouting according to claim 1, characterized in that: the alarm is electrically connected with the controller.
5. The laser monitoring instrument for monitoring road grouting according to claim 1, characterized in that: the display is electrically connected with the controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920930823 | 2019-06-19 | ||
| CN2019209308232 | 2019-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210916952U true CN210916952U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921620789.5U Active CN210916952U (en) | 2019-06-19 | 2019-09-26 | Laser monitoring instrument for monitoring road grouting |
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| Country | Link |
|---|---|
| CN (1) | CN210916952U (en) |
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2019
- 2019-09-26 CN CN201921620789.5U patent/CN210916952U/en active Active
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