CN110670641A - Device and method for detecting safety of deep foundation excavation of thermal power plant - Google Patents
Device and method for detecting safety of deep foundation excavation of thermal power plant Download PDFInfo
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- CN110670641A CN110670641A CN201910881108.9A CN201910881108A CN110670641A CN 110670641 A CN110670641 A CN 110670641A CN 201910881108 A CN201910881108 A CN 201910881108A CN 110670641 A CN110670641 A CN 110670641A
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention discloses a safety detection device and a safety detection method for deep foundation excavation of a thermal power plant, wherein the safety detection device comprises a power source, a leveling hammer, a pressure sensor and a controller, the power source is connected with the leveling hammer, the pressure sensor is installed on the leveling hammer, the pressure sensor is connected with the controller, the leveling hammer can be driven by the power source to circularly swing so as to knock a road surface, and the pressure sensor installed on the leveling hammer transmits measurement data obtained by the pressure sensor to the controller. The invention can comprehensively detect the excavated ground and avoid the problem of incomplete detection.
Description
Technical Field
The invention relates to the field of detection devices, in particular to a device and a method for detecting the safety of deep foundation excavation of a thermal power plant.
Background
A thermal power plant, called thermal power plant for short, is a plant for producing electric energy by using coal, petroleum and natural gas as fuel, and its basic production process is that the fuel is burned in boiler to heat water and make it into steam, and the chemical energy of the fuel is converted into heat energy, and the steam pressure can drive turbine to rotate, and the heat energy can be converted into mechanical energy, then the turbine can drive generator to rotate, and the mechanical energy can be converted into electric energy. The deep foundation pit refers to an engineering with excavation depth of more than 5 meters (including 5 meters) or more than three layers (including three layers) of a basement, or a construction with excavation depth of less than 5 meters, but particularly complex geological conditions, surrounding environment and underground pipelines.
The inventor thinks that at present, the deep foundation pit excavation of a thermal power plant has the following problems that an ① excavation safety detection device has the effect that the excavation ground cannot be detected anytime and anywhere when in use, a ② excavation safety detection device cannot give a prompt in time, and a ③ excavation safety detection device cannot level the excavation ground to be passed through.
Disclosure of Invention
Aiming at the defects of excavation of a deep foundation pit in the construction of the traditional thermal power plant, the invention aims to provide a device and a method for detecting the safety of excavation of the deep foundation pit of the thermal power plant.
The invention aims to provide a safety detection device for deep foundation excavation of a thermal power plant.
The invention provides a method for detecting the safety of deep foundation excavation of a thermal power plant.
In order to realize the purpose, the invention discloses the following technical scheme:
the invention discloses a safety detection device for deep foundation excavation of a thermal power plant, which comprises a power source, a leveling hammer, a pressure sensor and a controller, wherein the power source is connected with the leveling hammer, the leveling hammer is provided with the pressure sensor, the pressure sensor is connected with the controller, the leveling hammer can be driven by the power source to circularly swing so as to knock a road surface, the pressure sensor arranged on the leveling hammer transmits the obtained measurement data to the controller, and the controller analyzes and compares the measured data so as to detect the compactness of the road surface and further judge the safety degree of the road surface.
Further, still including bearing skeleton, transmission shaft, head rod and second connecting rod, bear the skeleton and be used for being connected with excavating gear, the transmission shaft rotatably is fixed in bears the skeleton, and the power supply is connected to the one end of transmission shaft, and the head rod is connected to the other end of transmission shaft, and the head rod passes through the fastener with the second connecting rod and can dismantle the connection, the second connecting rod with the levelling hammer is articulated.
Furthermore, still include first gear, second gear and connector, the first gear is connected to the power supply, first gear and second gear meshing, and the second gear is connected the transmission shaft, the tip installation connector of head, the transmission shaft can drive the connector and rotate, and then drives the head and rotate.
Furthermore, the first connecting rod with the second connecting rod all include a plurality ofly, every first connecting rod all can dismantle with the second connecting rod through the fastener and be connected, a leveling hammer is all connected to every second connecting rod.
Further, the device also comprises an alarm which is connected with the controller;
the controller is connected with a power supply.
Further, the pressure sensor is installed on the end face, used for knocking, of the leveling hammer.
Furthermore, the pressure sensors comprise a plurality of pressure sensors which are uniformly distributed on the end face of the leveling hammer, wherein the end face is used for knocking.
Furthermore, the power source is a servo motor, and the servo motor is connected with the controller and the power source.
The invention further discloses a safety detection method for deep foundation excavation of a thermal power plant, wherein a power source drives the leveling hammer to circularly swing so as to knock the road surface for multiple times and multiple places, so that a pressure sensor arranged on the leveling hammer detects pressure information of the leveling hammer and transmits the pressure information to a controller.
Specifically, the method comprises the following steps:
the power source drives the leveling hammer to circulateSwing to align with p on the road1Knocking the point, and measuring by the pressure sensor to obtain a data group q1Feedback to the controller, which records q1；
The controller will set the sensor data q1And a preset standard value q0Comparing, if the average value of the sensor data group is found to be smaller than the standard value q0If yes, starting an alarm to alarm;
at p2、p3、…、pnThe above operation is repeated by a point, and the controller records p2、p3、…、pnPoint-corresponding sensor data set q2、q3、…、qnIf a sensor data set q is found1、q2、…、qnIs less than the standard value q0And immediately starting an alarm to alarm.
Compared with the prior art, the invention has the following beneficial effects:
1. the equipment disclosed by the invention is used as an extension of locomotive equipment, can be connected to the existing locomotive through a fastener for use, and the separated design can be flexibly mastered, so that the waste of the existing locomotive resources is avoided.
2. The leveling hammer has certain inertia, and may produce certain reverse torque to the power source to damage the power source during reciprocating motion.
3. The detection distance of the detection device can be increased through the extension and contraction between the first connecting rod and the second connecting rod, the detection device can adapt to different detection environments, the variable distance between the first connecting rod and the second connecting rod can change the torque of the leveling hammer, the leveling hammer can provide different data references for the pressure sensor, and the data collection range is convenient to expand.
4. The pressure sensor and the controller can measure the softness of the ground and alarm and remind a place easy to collapse through the alarm, and in the measuring process, the pressure sensors are provided with a plurality of pressure sensors, so that the sensing data of the pressure sensors are actually a data set, the data set can reflect the specific situation of the ground area from a plurality of points, and the large error of a single point is avoided.
5. The shaft groove and the balls are arranged, so that power transmission of the transmission shaft is facilitated, and friction resistance is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Figure 1 is a bottom view of embodiment 1 showing the overall structure of the device,
FIG. 2 is a schematic view showing the structure of the connection between the second connecting rod and the leveling hammer in embodiment 1,
fig. 3 is a schematic diagram of connection of electronic components in embodiment 1.
In the figure, 1, a bearing framework; 2, a servo motor; 3, a first gear; 4, a second gear; 5, a transmission shaft; 6, connecting the connector; 7, a first connecting rod; 8, fixing the bolt; 9, a second connecting rod; 10, leveling hammer; 11, a pressure sensor; 12, a power supply; 13, a controller; 14, an alarm; 15, a shaft groove; 16, a ball; 17. loading a bolt; and 18, connecting a hinge.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, aiming at the defects of excavation of a deep foundation pit in the construction of the existing thermal power plant, the invention aims to provide a device and a method for detecting the safety of the deep foundation excavation of the thermal power plant.
Example 1
A safe detection device is excavated to deep basal for thermal power plant, including power supply, levelling hammer 10, pressure sensor 11 and controller 13, levelling hammer 10 is connected to the power supply, levels and hangs down installation pressure sensor 11, and its connection director 13 of pressure sensor can drive levelling hammer 10 through the power supply and carry out the circulation swing in order to strike the road surface, installs in levelling hammer 10's pressure sensor 11 and gives controller 13 with its measuring data who obtains.
Still including bearing skeleton 1, transmission shaft 5, head rod 7 and second connecting rod 9, bear skeleton 1 and be used for being connected with excavating gear, transmission shaft 5 rotatably is fixed in and bears skeleton 1, and the power supply is connected to the one end of transmission shaft 5, and head rod 7 is connected to the other end of transmission shaft 5, and head rod 7 passes through the fastener with second connecting rod 9 and can dismantle and be connected, second connecting rod 9 with levelling hammer 10 is articulated.
Still include first gear 3, second gear 4 and connector 6, first gear 3 is connected to the power supply, and first gear 3 meshes with second gear 4, and second gear 4 is connected transmission shaft 5, the end installation connector 6 of head rod 7, transmission shaft 5 can drive connector 6 and rotate, and then drive head rod 7 and rotate.
The first connecting rods 7 and the second connecting rods 9 respectively comprise a plurality of connecting rods, each first connecting rod 7 is detachably connected with the second connecting rod 9 through a fastener, and each second connecting rod 9 is connected with a leveling hammer 10.
The alarm 14 is further included, and the alarm 14 is connected with the controller 13;
the controller 13 is connected to the power source 12.
The pressure sensor 11 is mounted on the end face of the leveling hammer 10 for striking.
The pressure sensors 11 are provided in plurality, and the pressure sensors 11 are uniformly distributed on the end surface of the leveling hammer 10 for striking.
The power source is a servo motor 2, and the servo motor 2 is connected with a controller 13 and a power source 12.
In this embodiment, can install the top at excavating gear with bearing skeleton 1 through the bolt, and connect servo motor 2 and controller 13 through power 12, provide the electric energy for servo motor 2 and controller 13, servo motor 2 fixed mounting bears skeleton 1, servo motor 2 connects first gear 3, first gear 3 and second gear 4 intermeshing, servo motor 2 can drive second drive gear through first gear 3 and rotate, second drive gear's central fixed mounting transmission shaft 5, the other end of transmission shaft 5 is installed in race 15, be equipped with ball 16 in race 15, ball 16 can contact with transmission shaft 5, the rotation of transmission shaft 5 can be convenient for through the ball 16 that sets up, reduce frictional resistance's production.
The connector 6 is sleeved outside the transmission shaft 5, the transmission shaft 5 can drive the connector 6 to rotate, the connector 6 is fixedly connected with the first connecting rod 7, the first connecting rod 7 is connected with the second connecting rod 9 through the fixing bolt 8, it can be understood that the end part of the first connecting rod 7 connected with the second connecting rod 9 is provided with a plurality of connecting holes, the length between the first connecting rod 7 and the second connecting rod 9 can be adjusted by adjusting the connecting holes connected with the fixing bolt 8, and further the detection range is increased, the second connecting rod 9 can be hinged with the leveling hammer 10 through a hinge, and further, the leveling hammer 10 is driven to strike the ground in a circulating reciprocating manner through forward rotation/reverse rotation of the servo motor 2 so as to level the ground;
when the leveling hammer 10 strikes ground, ground can produce a reaction force to the leveling hammer 10, so can measure the size of reaction force through the pressure sensor 11 who strikes evenly distributed on the terminal surface at the leveling hammer 10 to give controller 13 with information transfer, controller 13 can carry out the analysis contrast to measured information, thereby can carry out the alarm to the place that easily sinks and remind.
Example 2
The method is used for the safety detection method of the deep foundation excavation of the thermal power plant, a power source drives the leveling hammer 10 to circularly swing so as to knock the road surface for multiple times and multiple places, so that the pressure sensor 11 arranged on the leveling hammer 10 detects the pressure information of the leveling hammer 10 and transmits the pressure information to the controller 13.
Specifically, the method comprises the following steps:
the power source drives the leveling hammer 10 to circularly swing to p on the road surface1The point is knocked, and the pressure sensor 11 measures the obtained data group q1Feedback to the controller 13, the controller 13 records q1；
The controller 13 maps the sensor data group q to a data group q1And a preset standard value q0Comparing, if the average value of the sensor data group is found to be smaller than the standard value q0If yes, starting an alarm to alarm;
at p2、p3、…、pnThe above operation is repeated by dots, and the controller 13 records p2、p3、…、pnPoint-corresponding sensor data set q2、q3、…、qnIf a sensor data set q is found1、q2、…、qnIs less than the standard value q0And immediately starting an alarm to alarm.
It is to be understood that, since the present embodiment is proposed based on the apparatus disclosed in embodiment 1, in the present embodiment, the sensor data group q is set to be the same as that of the present embodiment1、q2、…、qnWhich is actually a set of data, as shown in fig. 1, in embodiment 1, 6 pressure sensors 11 are installed on the end surface for striking of each leveling hammer 10, and in embodiment 1, there are 5 leveling hammers 10, and there are 30 pressure sensors 11 in total.
Data collected by 30 pressure sensors 11 are de-averaged
By using
And a standard value p0And (6) comparing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A safe detection device is excavated to deep basal for thermal power plant, a serial communication port, including the power supply, the leveling hammer, pressure sensor and controller, the leveling hammer is connected to the power supply, the leveling hangs down installation pressure sensor, its connection director of pressure sensor, can drive the leveling hammer through the power supply and carry out the circulating swing in order to strike the road surface, install the pressure sensor who installs in the leveling hammer and give the controller with its measuring data who obtains, the controller judges the road surface degree of compaction according to the measuring data who obtains, and then judges the security on road surface.
2. The safety detecting device for deep foundation excavation of a thermal power plant as claimed in claim 1, further comprising a bearing frame, a transmission shaft, a first connecting rod and a second connecting rod, wherein the bearing frame is used for being connected with the excavating device, the transmission shaft is rotatably fixed on the bearing frame, one end of the transmission shaft is connected with a power source, the other end of the transmission shaft is connected with the first connecting rod, the first connecting rod and the second connecting rod are detachably connected through a fastener, and the second connecting rod is hinged with the leveling hammer.
3. The deep foundation pit safety detecting device for the thermal power plant as claimed in claim 2, further comprising a first gear, a second gear and a connector, wherein the power source is connected with the first gear, the first gear is meshed with the second gear, the second gear is connected with the transmission shaft, the connector is installed at the end of the first connecting rod, and the transmission shaft can drive the connector to rotate so as to drive the first connecting rod to rotate.
4. The deep foundation pit safety detecting device for a thermal power plant as claimed in claim 2, wherein the first connecting rod and the second connecting rod each comprise a plurality of rods, each first connecting rod is detachably connected to the second connecting rod by a fastener, and each second connecting rod is connected to a leveling hammer.
5. The safety detection device for the deep foundation pit of the thermal power plant according to claim 1, further comprising an alarm connected to the controller;
the controller is connected with a power supply.
6. The safety detection device for the deep foundation pit of the thermal power plant according to claim 1, wherein the pressure sensor is installed at an end face of the leveling hammer for hammering.
7. The safety detection device for the deep foundation pit of the thermal power plant as claimed in claim 1, wherein the pressure sensor comprises a plurality of pressure sensors, and the plurality of pressure sensors are uniformly distributed on the end face of the leveling hammer for knocking.
8. The safety detection device for the deep foundation pit of the thermal power plant according to claim 1, wherein the power source is a servo motor, and the servo motor is connected with the controller and the power source.
9. The method for detecting the safety of the deep foundation excavation of the thermal power plant as claimed in any one of claims 1 to 8, wherein the power source drives the leveling hammer to circularly swing so as to strike the road surface for a plurality of times and places, so that the pressure sensor installed on the leveling hammer detects the pressure information of the leveling hammer and transmits the pressure information to the controller.
10. The safety detection method for excavation of a deep foundation pit of a thermal power plant according to claim 9, comprising the steps of:
the power source drives the leveling hammer to circularly swing so as to align the p on the road surface1Knocking the point, and measuring by the pressure sensor to obtain a data group q1Feedback to the controller, which records q1；
The controller will set the sensor data q1And a preset standard value q0Comparing, if the average value of the sensor data group is found to be smaller than the standard value q0If yes, starting an alarm to alarm;
at p2、p3、…、pnThe above operation is repeated by a point, and the controller records p2、p3、…、pnPoint-corresponding sensor data set q2、q3、…、qnIf a sensor data set q is found1、q2、…、qnIs less than the standard value q0And immediately starting an alarm to alarm.
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| CN201910881108.9A CN110670641B (en) | 2019-09-18 | 2019-09-18 | Safety detection device and method for deep foundation pit excavation of thermal power plant |
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| CN201910881108.9A CN110670641B (en) | 2019-09-18 | 2019-09-18 | Safety detection device and method for deep foundation pit excavation of thermal power plant |
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2019
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| CA2077353A1 (en) * | 1990-03-08 | 1991-09-09 | Dick T. Atkinson | Monitoring of soil |
| CA2256848A1 (en) * | 1998-12-09 | 2000-06-09 | France Goupil | System for capturing and processing microseismic data during the inspection of civil engineering structures |
| CN101285750A (en) * | 2008-04-25 | 2008-10-15 | 国网北京电力建设研究院 | High strain hammering device |
| KR101019597B1 (en) * | 2010-11-17 | 2011-03-07 | 초석건설산업(주) | Apparatus real time automatic instrument of new sand drain method and new sand compaction pile method with excellent construction quality |
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