CN110763192A - Soil body settlement circulation monitoring device and monitoring method - Google Patents
Soil body settlement circulation monitoring device and monitoring method Download PDFInfo
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- CN110763192A CN110763192A CN201911142553.XA CN201911142553A CN110763192A CN 110763192 A CN110763192 A CN 110763192A CN 201911142553 A CN201911142553 A CN 201911142553A CN 110763192 A CN110763192 A CN 110763192A
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- 239000002689 soil Substances 0.000 title claims abstract description 53
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000006073 displacement reaction Methods 0.000 claims abstract description 34
- 239000000523 sample Substances 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 238000004873 anchoring Methods 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 15
- 238000004062 sedimentation Methods 0.000 claims description 13
- 239000010409 thin film Substances 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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Abstract
The invention relates to the technical field of soil monitoring, in particular to a soil settlement circulation monitoring device and a monitoring method. The settling pipe is formed by sequentially connecting more than two PVC rectangular pipes, and a settling ring is sleeved outside each PVC rectangular pipe; the displacement measuring device comprises a motor and more than two box body mechanisms, the upper part of the box body is connected with the motor through a rope, and the lower part of the box body is connected with the magnetic probe through the rope; a pair of angular displacement sensing mechanisms are arranged in the box body, and a pair of distance measuring guide wheels and a pair of fixed guide wheels are respectively arranged on the side surfaces of two opposite sides of the box body; the pair of distance measuring guide wheels correspond to the track on one side of the settling tube, and the fixed guide wheels correspond to the track on the other side of the settling tube, so that the box body mechanism rolls up and down along the track on the inner wall of the settling tube; the distance measuring guide wheel mechanisms are connected with a corresponding pair of angular displacement sensors, and the angular displacement sensors are connected with a signal receiver. The method can monitor the soil body settlement in continuous time, and simultaneously avoid the interference of the transmission process of electromagnetic signals on the measurement.
Description
Technical Field
The invention relates to the technical field of soil monitoring, in particular to a soil settlement circulation monitoring device and a monitoring method.
Background
At present, an electromagnetic type settlement gauge and a hydrostatic level gauge are mostly used for monitoring settlement in engineering construction, the electromagnetic type settlement gauge has the working principle that a settlement pipe is buried in a foundation to be monitored, a settlement magnetic ring is installed outside the settlement pipe according to the soil layer condition, the settlement magnetic ring settles along with the soil layer to be detected, one end of a flexible rule is connected with a probe, and the other end of the flexible rule is connected with a receiver; when the magnetic ring is used for measuring, the flexible rule with one end of the probe is placed in the settling tube, the probe slowly moves downwards, when the probe reaches the position of the magnetic ring, the probe can send a signal to the receiver, the receiver makes a sound, the reading is carried out according to the scale on the flexible rule, and the probe needs to be continuously moved along with the settlement of a soil body to carry out reading and counting. The method needs manual whole-process operation, reading and counting, has low measurement precision and cannot be monitored in real time.
Although the static level can realize real-time monitoring, the static level needs to use a communicating vessel, so that the whole measuring device is large, pipelines are needed to be connected among monitoring points, and the installation is inconvenient. The traditional static force level gauge adopts electromagnetic monitoring, and when electromagnetic signals interfere with the ground, a large error is generated on a measuring result.
Disclosure of Invention
The invention solves the problems in the background art, provides a soil body settlement circulation monitoring device and a monitoring method, can monitor soil body settlement in continuous time, and simultaneously avoids the interference of the transmission process of electromagnetic signals on measurement, and the specific technical scheme is as follows:
a soil body settlement circulation monitoring device comprises a settlement pipe 5 and a displacement measuring mechanism, wherein the settlement pipe 5 is formed by sequentially connecting more than two PVC pipes end to end in a through way, the cross section of each PVC pipe is rectangular,
the displacement measuring mechanism comprises a motor 1 and more than two box body mechanisms 2, wherein the motor 1 is positioned above the settling pipe 5 and is sequentially connected with each box body mechanism 2 through a rope, so that the box body mechanisms 2 and the PVC pipes are arranged in a one-to-one correspondence manner and are correspondingly positioned in pipe cavities of the PVC pipes;
two opposite inner side walls of the settling pipe 5 are respectively provided with a vertical slideway, and two sides of each box body mechanism 2 are in rolling connection with the corresponding vertical slideways;
a magnetic probe 6 is connected below each box body mechanism 2, and a sedimentation ring 3 is sleeved outside each PVC pipe corresponding to the magnetic probe 6;
each box body mechanism 2 comprises a pair of angular displacement sensors 23, and each pair of angular displacement sensors is connected with a signal receiver 7;
when soil body settlement is measured, each pair of angular displacement sensors measures the rolling angle of the corresponding box body mechanism 2, transmits the rolling angle to the signal receiver 7, and combines the rolling radius of the corresponding box body mechanism 2 to obtain the settlement amount of the corresponding soil body.
Further, each box body mechanism 2 comprises a cuboid-shaped box body, a pair of distance measuring guide wheels 22 and a pair of fixed guide wheels 21 are arranged on the two sides of the box body corresponding to the slideways on the two sides of the settling tube 5 respectively, and a pair of angular displacement sensors 23 are fixedly installed in the box body and connected with the corresponding pair of distance measuring guide wheels 22 and used for measuring the rotating angles of the pair of guide wheels.
Further, each of the pair of distance measuring guide wheels 22 is an elastic overhanging wheel, and the radius of the elastic overhanging wheel is the same as that of the fixed guide wheel 21.
Furthermore, the settlement ring 3 is in an annular tubular shape, a corrosion-resistant thin film layer 32 is sleeved outside the settlement ring 3, more than two anchoring steel sheets 31 are uniformly distributed around the outer edge of the thin film layer 32, one end of each anchoring steel sheet 31 is hinged with the corrosion-resistant thin film layer 32, and when soil body settlement is measured, the other end of each anchoring steel sheet 31 is inserted into the soil body to be measured.
Also comprises a monitoring method of the soil body settlement circulation monitoring device, which comprises the following steps,
step (1): drilling a monitoring hole on the ground, wherein the aperture of the monitoring hole is 10-30 cm;
step (2): grouting is carried out at the bottom of the monitoring hole to form a short pile reinforcing body, so that the influence of the dead weight of the settling pipe 5 on the monitoring result is avoided;
and (3): sequentially connecting more than two PVC pipes end to obtain a sedimentation pipe 5, and vertically inserting the sedimentation pipe 5 into the monitoring hole in the step (2);
and (4): each PVC rectangular pipe is sleeved with a settlement ring 3, the anchoring steel sheet 31 of each settlement ring 3 is unscrewed, the settlement ring 3 is embedded in the backfill soil body, and each anchoring steel sheet 31 is ensured to be horizontally inserted into the soil body to be tested;
and (5): after the settling rings 3 are embedded, the lower end of a motor 1 is suspended with more than two box body mechanisms 2 through ropes, the motor is fixed above the pipe orifice of a settling pipe 5, so that a pair of distance measuring guide wheels 22 and fixed guide wheels 21 at two sides of each box body are correspondingly positioned on slideways at two sides of the settling pipe 5, and a magnetic probe 6 below the box body corresponds to the settling rings 3;
and (6): debugging a cycle monitoring device, and measuring the initial value of the position of each settlement ring 3;
and (7): and (3) reading the value of each pair of angular displacement sensors through a signal receiver 7 at an interval time t of 3-10 days to obtain the rotating angle of each pair of angular displacement sensors corresponding to a pair of distance measuring guide wheels 22 on the box body mechanism, and calculating to obtain the settlement of the corresponding soil body by combining the radius of the guide wheels of each pair of distance measuring guide wheels.
The invention has the beneficial technical effects that:
(1) the settlement ring is buried in the soil layer and settles along with the settlement of the soil body; the magnetic probes and the sedimentation rings are arranged in a one-to-one correspondence manner to realize mutual induction, and the sedimentation rings are downwards sedimentated to enable the corresponding magnetic probes to downwards move along with the sedimentation rings; the magnetic probe drives the corresponding box body mechanism to roll downwards along the slide way on the inner wall of the settling tube through a rope; the pair of angular displacement sensors measures the rotating angle of the corresponding pair of ranging guide wheels, transmits the rotating angle to the signal receiver on the ground, and calculates the settlement of the soil body according to the radius of the pair of ranging guide wheels, so that the interference error in the electromagnetic signal transmission process can be effectively avoided, and the accuracy of data transmission is improved; the motor lifts more than two box body mechanisms, manual operation is avoided, and automatic circular monitoring of soil body settlement in continuous time can be realized.
(2) Each pair of angular displacement sensing mechanisms comprises two angular displacement sensors, and the average value measured by the two angular displacement sensors is taken, so that the measurement error can be effectively reduced; meanwhile, each anchoring steel sheet is inserted into the soil layer, so that the settlement ring and the soil body are settled together, and the accuracy of the measuring result is further ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the cartridge body of the present invention.
Fig. 3 is a schematic structural view of a settling ring.
In the figure: 1-a motor; 2-a box body mechanism; 3-a settling ring; 31-anchoring the steel sheet; 32-a thin film layer; 5-a settling pipe; 6-a magnetic probe; 7-a signal receiver; 21-fixing a guide wheel; 22-a pair of ranging guide wheels; 23-a pair of angular displacement sensors.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A soil body settlement circulation monitoring device comprises a settlement pipe 5 and a displacement measuring mechanism, wherein the settlement pipe 5 is formed by sequentially connecting two PVC pipes end to end in a through manner, the cross section of each PVC pipe is rectangular,
the displacement measuring mechanism comprises a motor 1 and two box body mechanisms 2, wherein the motor 1 is positioned above the settling pipe 5, and the two box body mechanisms 2 are sequentially connected through a rope, so that the box body mechanisms 2 and the PVC pipes are arranged in a one-to-one correspondence manner and are correspondingly positioned in pipe cavities of the PVC pipes; two opposite inner side walls of the settling pipe 5 are respectively provided with a vertical slideway, and two sides of each box body mechanism 2 are in rolling connection with the corresponding vertical slideways; a magnetic probe 6 is connected below each box body mechanism 2, and a sedimentation ring 3 is sleeved outside each PVC pipe corresponding to the magnetic probe 6; each box body mechanism 2 comprises a pair of angular displacement sensors 23, and each pair of angular displacement sensors is connected with a signal receiver 7;
when soil body settlement is measured, each pair of angular displacement sensors measures the rolling angle of the corresponding box body mechanism 2, transmits the rolling angle to the signal receiver 7, and combines the rolling radius of the corresponding box body mechanism 2 to obtain the settlement amount of the corresponding soil body.
Each box body mechanism 2 comprises a cuboid-shaped box body, a pair of distance measuring guide wheels 22 and a fixed guide wheel 21 are respectively arranged on two sides of the box body corresponding to the slideways on two sides of the settling tube 5, and a pair of angular displacement sensors 23 are fixedly installed in the box body and connected with the corresponding pair of distance measuring guide wheels 22 and used for measuring the rotating angle of the pair of distance measuring guide wheels 22, namely the rolling angle corresponding to the box body mechanism.
Each distance measuring guide wheel is an elastic overhanging wheel, and the radius of the distance measuring guide wheel is the same as that of the fixed guide wheel 21.
The settlement ring 3 is in an annular tubular shape, the corrosion-resistant thin film layer 32 is sleeved outside the settlement ring 3, more than two anchoring steel sheets 31 are uniformly distributed around the outer edge of the thin film layer 32, one end of each anchoring steel sheet 31 is hinged with the corrosion-resistant thin film layer 32, and when the soil body settlement is measured, the other end of each anchoring steel sheet 31 is inserted into the soil body to be measured.
When measuring the soil body settlement, each settlement ring 3 is buried in the soil layer and settles along with the settlement of the soil body; the magnetic probes 6 and the sedimentation rings 3 are arranged in a one-to-one correspondence manner to realize an induction effect, so that the sedimentation rings 3 move downwards to drive the magnetic probes 6 to move downwards, and further drive the box body to roll downwards along a slide way on the inner side wall of the sedimentation pipe 5;
the pair of angular displacement sensors 24 measures the rotating angle of the corresponding pair of ranging guide wheels 22, data are transmitted to the signal receiver 7 on the ground through a lead, and the settling volume of the soil body is calculated according to the radius of the pair of ranging guide wheels 22, so that the interference error in the electromagnetic signal transmission process can be effectively avoided, and the accuracy of data transmission is improved;
meanwhile, the motor 1 suspends the two box body mechanisms 2 in a hanging mode through a rope, and each box body mechanism 2 moves along with the downward movement of the magnetic probe 6 below, so that manual operation is avoided, and automatic circular monitoring of soil body settlement in continuous time can be achieved.
Example 2
Embodiment 1 a monitoring method of a soil body settlement circulation monitoring device, comprising the following steps:
step (1): drilling a monitoring hole on the ground, wherein the aperture of the monitoring hole is 20 cm;
step (2): grouting is carried out at the bottom of the monitoring hole to form a short pile reinforcing body, so that the influence of the dead weight of the settling pipe 5 on the monitoring result is avoided;
and (3): sequentially connecting more than two PVC pipes end to obtain a sedimentation pipe 5, and vertically inserting the sedimentation pipe 5 into the monitoring hole in the step (2);
and (4): each PVC rectangular pipe is sleeved with a settlement ring 3, the anchoring steel sheet 31 of each settlement ring 3 is unscrewed, the settlement ring 3 is embedded in the backfill soil body, and each anchoring steel sheet 31 is ensured to be horizontally inserted into the soil body to be tested;
and (5): after the settling rings 3 are embedded, the lower end of a motor 1 is suspended with more than two box body mechanisms 2 through ropes, the motor is fixed above the pipe orifice of a settling pipe 5, so that a pair of distance measuring guide wheels 22 and fixed guide wheels 21 at two sides of each box body are correspondingly positioned on slideways at two sides of the settling pipe 5, and a magnetic probe 6 below the box body corresponds to the settling rings 3;
and (6): debugging a cycle monitoring device, and measuring the initial value of the position of each settlement ring 3;
and (7): and (4) reading the value of each pair of angular displacement sensors by the signal receiver 7 at an interval time t of 7 days to obtain the rotating angle of each pair of angular displacement sensors corresponding to a pair of distance measuring guide wheels 22 on the box body mechanism, and calculating to obtain the settlement of the corresponding soil body by combining the radius of the guide wheels of each pair of distance measuring guide wheels.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and any person skilled in the art and capable of doing various changes or substitutions on the above embodiments without inventive work should be covered by the scope of the present invention.
Claims (5)
1. Soil body subsides circulation monitoring devices, including subsides pipe (5) and position displacement mechanism, subsides pipe (5) are by PVC pipe end to end link up formation in proper order more than two, and the cross section of every PVC pipe is the rectangle, its characterized in that:
the displacement measuring mechanism comprises a motor (1) and more than two box body mechanisms (2), wherein the motor (1) is positioned above the settling pipe (5), and is sequentially connected with each box body mechanism (2) through a rope, so that the box body mechanisms (2) and the PVC pipes are arranged in a one-to-one correspondence manner and are correspondingly positioned in pipe cavities of the PVC pipes;
two opposite inner side walls of the settling pipe (5) are respectively provided with a vertical slideway, and two sides of each box body mechanism (2) are respectively in rolling connection with the corresponding vertical slideways;
the lower part of each box body mechanism (2) is connected with a magnetic probe (6) through a rope, and a sedimentation ring (3) is sleeved outside each PVC pipe corresponding to the magnetic probe (6);
each box body mechanism (2) comprises a pair of angular displacement sensors (23), and each pair of angular displacement sensors is connected with a signal receiver (7);
when soil body settlement is measured, each pair of angular displacement sensors measures the rolling angle of the corresponding box body mechanism (2), transmits the rolling angle to the signal receiver (7), and combines the rolling radius of the box body mechanism (2) to obtain the settlement amount of the corresponding soil body.
2. The soil body settlement circulation monitoring device of claim 1, wherein: each box body mechanism (2) comprises a cuboid box body, and a pair of distance measuring guide wheels (22) and a fixed guide wheel (21) are respectively arranged on the two sides of the box body corresponding to the vertical slideways on the two inner side walls of the settling pipe (5), so that the box body mechanisms are in rolling connection with the corresponding vertical slideways;
the pair of angular displacement sensors (23) are fixedly installed in the box body, connected with the pair of distance measuring guide wheels (22) and used for measuring the rolling angles of the pair of distance measuring guide wheels (22).
3. The soil body settlement circulation monitoring device of claim 2, wherein: each distance measurement guide wheel in a pair of distance measurement guide wheels (22) is an elastic overhanging wheel, and the radius of each distance measurement guide wheel is equal to the radius of the fixed guide wheel (21).
4. The soil body settlement circulation monitoring device of claim 1, wherein: the settlement ring (3) is in an annular tubular shape, a corrosion-resistant thin film layer (32) is sleeved outside the settlement ring (3), more than two anchoring steel sheets (31) are uniformly distributed around the outer edge of the thin film layer (32), one end of each anchoring steel sheet (31) is hinged with the corrosion-resistant thin film layer (32), and when the soil body settlement is measured, the other end of each anchoring steel sheet (31) is inserted into the soil body to be measured.
5. The monitoring method of the soil body settlement circulation monitoring device according to any one of claims 1 to 4, wherein: comprises the following steps of (a) carrying out,
step (1): drilling a monitoring hole on the ground, wherein the aperture of the monitoring hole is 10-30 cm;
step (2): grouting is carried out at the bottom of the monitoring hole to form a short pile reinforcing body, so that the influence of the self weight of the settling pipe (5) on the monitoring result is avoided;
and (3): sequentially connecting more than two PVC pipes end to obtain a settling pipe (5), and vertically inserting the settling pipe (5) into the monitoring hole in the step (2);
and (4): each PVC rectangular pipe is sleeved with a settlement ring (3), the anchoring steel sheet (31) of each settlement ring (3) is unscrewed, the settlement ring (3) is embedded in backfill soil, and each anchoring steel sheet (31) is ensured to be horizontally inserted into the soil to be tested;
and (5): after the settlement ring (3) is buried, the lower end of the motor (1) is hung with more than two box body mechanisms (2) through a rope, the motor is fixed above the pipe orifice of the settlement pipe (5), so that a pair of distance measuring guide wheels (22) and fixed guide wheels (21) at two sides of each box body mechanism (2) are correspondingly positioned on the slideways at two sides of the settlement pipe (5), and the magnetic probe (6) below the box body mechanism (2) corresponds to the settlement ring (3);
and (6): debugging a circulation monitoring device to measure the initial value of the position of each settlement ring (3);
and (7): and (3) reading the numerical value of each pair of angular displacement sensors through a signal receiver (7) at an interval time t of 2-7 days to obtain the rotating angle of each pair of angular displacement sensors corresponding to a pair of distance measuring guide wheels (22) on the box body mechanism, and calculating the settlement of the corresponding soil body by combining the radius of the guide wheels of each pair of distance measuring guide wheels.
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Cited By (4)
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| CN111257537A (en) * | 2020-02-14 | 2020-06-09 | 山东大学 | Soil settlement layered monitoring device, mounting method and using method |
| CN114894155A (en) * | 2022-04-13 | 2022-08-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Embankment or port yard filling layered settlement monitoring device and construction method |
| CN115404922A (en) * | 2022-08-26 | 2022-11-29 | 广东电网有限责任公司 | Negative frictional resistance testing method and device, electronic equipment and storage medium |
| CN114894155B (en) * | 2022-04-13 | 2024-05-31 | 水利部交通运输部国家能源局南京水利科学研究院 | Embankment or port yard filling layered settlement monitoring device and construction method |
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