CN115235416A - Automatic monitoring system and method for shield construction segment settlement - Google Patents
Automatic monitoring system and method for shield construction segment settlement Download PDFInfo
- Publication number
- CN115235416A CN115235416A CN202210687234.2A CN202210687234A CN115235416A CN 115235416 A CN115235416 A CN 115235416A CN 202210687234 A CN202210687234 A CN 202210687234A CN 115235416 A CN115235416 A CN 115235416A
- Authority
- CN
- China
- Prior art keywords
- range finder
- laser range
- ring
- distance
- delta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an automatic monitoring system and a monitoring method for shield construction segment settlement, which comprises the following steps: the first laser range finder and the second laser range finder are vertically arranged on the top surface of the tail of the frame and face the top of the tube sheet ring, and the distance between the first laser range finder and the second laser range finder is equal to the ring width of the tube sheet ring; the third laser range finder is rotatably arranged on the top surface of the head part of the frame and faces the top of the tube sheet ring; the elevation measuring device is installed and connected to the first laser range finder, the second laser range finder and the third laser range finder and connected with an industrial personal computer of the shield, and the elevation measuring device is used for measuring a first elevation difference between the first laser range finder and the second laser range finder and a second elevation difference between the first laser range finder and the third laser range finder. The elevation of the segment ring is monitored in real time in the shield tunneling process to obtain the settlement data of the segment ring, automatic monitoring is achieved without manual measurement, and the settlement monitoring precision of the segment ring is improved.
Description
Technical Field
The invention relates to the technical field of shield construction, in particular to an automatic monitoring system and a monitoring method for shield construction segment settlement.
Background
The duct piece settlement condition of a construction disturbance area needs to be measured in the construction process of the shield tunneling machine, the field construction is guided by the measurement result, the engineering safety is ensured, and meanwhile, the method is also an important basis for predicting the surface settlement. Referring to fig. 1, the common method for monitoring the duct piece settlement is manual precision leveling, two operators are needed, one operator is needed for a leveling instrument 11, and one operator is needed for a leveling rod 12. During operation, the height of a leveling point of a stable area in a tunnel is guided and measured to a temporary leveling point 13 near an operation surface by two persons along a fixed leveling route, so that the elevation of the sight line of the leveling instrument 11 is temporarily connected to an engineering elevation system, an operator of the leveling rod 12 places the leveling rod 12 at the front edge center of the bottom of a pipe segment one by one to observe and record the sight line height for the operator of the leveling instrument 11, after the observation is finished, the operator of the leveling instrument 11 arranges and calculates observation records, and the observation records are compared with the previous observation records to obtain the settlement of the pipe segment. However, this method is labor and time consuming and inefficient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an automatic monitoring system and a monitoring method for shield construction segment settlement, so as to solve the problems that the existing manual precise leveling mode consumes manpower and time and has low monitoring efficiency.
In order to achieve the purpose, the invention provides an automatic monitoring system for duct piece settlement in shield construction, which is arranged on a frame at the tail of a shield, and comprises:
the first laser range finder and the second laser range finder are vertically arranged on the top surface of the tail part of the frame and face the top of the tube sheet ring, the first laser range finder and the second laser range finder are connected with an industrial personal computer of the shield, the distance between the first laser range finder and the second laser range finder is equal to the ring width of the tube sheet ring, the first distance delta ha1 between the first laser range finder and a detection point on the corresponding tube sheet ring is measured through the first laser range finder, and the second distance delta ha2 between the second laser range finder and a detection point on the corresponding tube sheet ring is measured through the second laser range finder;
the third laser range finder is rotatably arranged on the top surface of the head of the frame and faces the top of the tube sheet ring, the third laser range finder, the first laser range finder and the second laser range finder are arranged in a horizontal direction in an aligned mode, the third laser range finder is in control connection with an industrial personal computer of the shield, the industrial personal computer controls the third laser range finder to rotate and adjust so that the third laser range finder can be sequentially aligned with the current splicing ring and detection points on the tube sheet rings behind the current splicing ring, and a plurality of third intervals D between the third laser range finder and the detection points on the current splicing ring and the tube sheet rings behind the current splicing ring are measured; and
the elevation measuring device is connected with an industrial personal computer of the shield, and is used for measuring a first elevation difference delta hab between the first laser range finder and the second laser range finder, a second Gao Chengcha delta hac between the first laser range finder and the third laser range finder, completing a ring pipe ring after each assembling of the shield, measuring the first elevation difference delta hab, the second Gao Chengcha delta hac, the first interval delta HA1, the second interval delta HA2 and the third interval D, calculating an elevation value of a detection point on a plurality of ring pipes corresponding to the second laser range finder, a current assembling ring and a plurality of ring pipes behind the current assembling ring by combining with a set elevation value of the detection point corresponding to the first laser range finder, and calculating a plurality of assembling ring pipe height values of the detection points according to a plurality of assembling ring pipe height difference values of a plurality of groups HN.
The automatic monitoring system for segment settlement is arranged on a frame at the tail of a shield, and as the shield continuously tunnels, monitoring data of a set elevation value HA of a group of detection points corresponding to a first laser range finder, an elevation value HB of a detection point corresponding to a second laser range finder and elevation values HN of detection points on a plurality of segment rings behind a current splicing ring are obtained when the shield finishes one segment ring after being spliced, and settlement values of the segment rings can be calculated according to the obtained difference values of the plurality of groups of elevation values, so that the real-time monitoring of the segment ring settlement is simultaneously finished in the shield tunneling process, manual operation measurement is not needed, the labor and time are saved, and the monitoring precision of the segment ring settlement is improved.
The shield construction segment settlement automatic monitoring system is further improved in that the high-rise measuring device comprises a first hydrostatic level gauge arranged on the first laser range finder, a second hydrostatic level gauge arranged on the second laser range finder, a third hydrostatic level gauge arranged on the third laser range finder, a first water pipe and a first air pipe which are arranged and connected between the first hydrostatic level gauge and the second hydrostatic level gauge, and a second water pipe and a second air pipe which are arranged and connected between the second hydrostatic level gauge and the third hydrostatic level gauge;
the first hydrostatic level, the second hydrostatic level and the third hydrostatic level are sequentially connected and are connected with the industrial personal computer of the shield.
The shield construction segment settlement automatic monitoring system is further improved in that the arrangement direction of the first laser range finder is consistent with the direction of the central axis of the segment ring.
The shield construction segment settlement automatic monitoring system is further improved in that the shield construction segment settlement automatic monitoring system further comprises a holder arranged on the top surface of the head of the frame, and the third laser range finder is rotatably arranged on the holder.
The invention also provides a monitoring method using the shield construction segment settlement automatic monitoring system, which comprises the following steps:
when the shield assembly is completed, the industrial personal computer controls the first laser range finder to measure a first distance delta ha1 between the first laser range finder and a detection point on the corresponding segment ring, and controls the second laser range finder to measure a second distance delta ha2 between the second laser range finder and a detection point on the corresponding segment ring;
the industrial personal computer controls the third laser range finder to rotate so that the third laser range finder is sequentially aligned with the current assembling ring and the detection points on the plurality of segment rings behind the current assembling ring to measure a plurality of third distances D between the third laser range finder and the current assembling ring and among the detection points on the plurality of segment rings behind the current assembling ring;
the elevation measurement device measures a first elevation difference delta hab between the first laser distance measuring instrument and the second laser distance measuring instrument and a second Gao Chengcha delta hac between the first laser distance measuring instrument and the third laser distance measuring instrument;
the industrial personal computer obtains the first elevation difference delta hab, the second Gao Chengcha delta hac, the first distance delta HA1, the second distance delta HA2 and the third distance D at the current moment, and calculates an elevation value HB of a detection point corresponding to the second laser range finder, a current splicing ring and elevation values HN of detection points on a plurality of tube sheet rings behind the current splicing ring by combining a set elevation value HA of the detection point corresponding to the first laser range finder;
and the industrial personal computer acquires and calculates elevation values of detection points on corresponding tube sheet rings along with the continuous tunneling of the shield, and calculates settlement values of the tube sheet rings according to the difference values of the elevation values of a plurality of groups.
The monitoring method of the shield construction segment settlement automatic monitoring system is further improved in that the elevation value HB of the corresponding detection point of the second laser range finder is calculated according to the following formula:
HB＝HA-△ha1+△hab+△hb2；
the elevation setting method comprises the steps of setting an elevation value of a corresponding detection point of a first laser range finder, setting a delta HA1 as a first distance between the first laser range finder and the detection point on the corresponding tube sheet ring, setting a delta hab as a first elevation difference between the first laser range finder and a second laser range finder, and setting a delta hb2 as a second distance between the second laser range finder and the detection point on the corresponding tube sheet ring.
The monitoring method of the shield construction segment settlement automatic monitoring system is further improved in that the vertical distance delta hn between the third laser range finder and the detection point on the corresponding segment ring is calculated according to the following formula:
△hn＝D*sin(β)；
and D is the distance between the third laser range finder and the detection point on the corresponding tube sheet ring, and beta is the included angle between the third laser range finder and the horizontal line.
The monitoring method of the shield construction segment settlement automatic monitoring system is further improved in that the elevation value HN of the corresponding detection point of the third laser range finder is calculated according to the following formula:
HN＝HA-△ha1+△hac+△hn；
the elevation value HA is a set elevation value of a corresponding detection point of the first laser range finder, the distance delta HA1 is a first distance between the first laser range finder and the detection point on the corresponding tube sheet ring, the distance delta hac is a second Gao Chengcha of the first laser range finder and the third laser range finder, and the distance delta hn is a vertical distance between the third laser range finder and the detection point on the corresponding tube sheet ring.
The monitoring method of the shield construction segment settlement automatic monitoring system is further improved in that when the industrial personal computer controls the third laser range finder to rotate, the industrial personal computer obtains an included angle beta between the third laser range finder and a horizontal line.
The monitoring method of the shield construction segment settlement automatic monitoring system is further improved in that HA is an initial set value in primary calculation;
in the subsequent calculation process, the set elevation value HA of the detection point corresponding to the first laser distance meter in the current monitoring is the elevation value HB of the detection point corresponding to the second laser distance meter in the previous monitoring.
Drawings
Fig. 1 is a schematic structural diagram of a conventional manual precision leveling measurement.
FIG. 2 is a schematic structural diagram of an automatic monitoring system for shield construction segment settlement.
Fig. 3 is a flow chart of the shield construction segment settlement automatic monitoring method of the present invention.
Description of the symbols: level 11, levelling rod 12, interim levelling point 13, section of jurisdiction ring 20, frame 30, first laser range finder 40, second laser range finder 50, third laser range finder 60, cloud platform 70, industrial computer 80, elevation measuring device 90.
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 specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an automatic monitoring system and a monitoring method for shield construction segment settlement, wherein each assembly of a shield finishes a ring segment, an elevation value HB of a corresponding detection point of a second laser range finder, an elevation value HN of a current assembly ring and detection points on a plurality of ring segments behind the current assembly ring are calculated, and the settlement value of the ring segments is calculated according to the difference of a plurality of groups of elevation values. Compared with a manual monitoring mode, the automatic monitoring system is high in automation degree and precision.
The automatic monitoring system for shield construction segment settlement is explained below with reference to the accompanying drawings.
Referring to fig. 2, in this embodiment, an automatic monitoring system for shield construction segment settlement includes: monitoring system installs on the frame 30 of shield tail, and monitoring system includes: the first laser range finder 40 and the second laser range finder 50 which are vertically arranged on the top surface of the tail part of the frame 30 and face the top of the tube piece ring 20 are connected with an industrial personal computer 80 of the shield, the distance between the first laser range finder 40 and the second laser range finder 50 is equal to the ring width of the tube piece ring 20, a first distance delta ha1 between the first laser range finder 40 and detection points on the corresponding tube piece ring 20 is measured through the first laser range finder 40, and a second distance delta ha2 between the second laser range finder 50 and detection points on the corresponding tube piece ring 20 is measured through the second laser range finder 50; the third laser range finder 60 is rotatably arranged on the top surface of the head of the frame 30 and faces the top of the segment ring 20, the third laser range finder 60, the first laser range finder 40 and the second laser range finder 50 are arranged in a horizontal direction in an aligned mode, the third laser range finder 60 is in control connection with an industrial personal computer 80 of the shield, the third laser range finder 60 is controlled by the industrial personal computer 80 to rotate and adjust so that the third laser range finder 60 sequentially aligns at the current splicing ring and detection points on a plurality of segment rings 20 behind the current splicing ring, and a plurality of third intervals D between the third laser range finder 60 and the detection points on the current splicing ring and a plurality of segment rings 20 behind the current splicing ring are measured; the method comprises the steps of installing an elevation measuring device 90 connected to a first laser range finder 40, a second laser range finder 50 and a third laser range finder 60, connecting the elevation measuring device 90 with an industrial computer 80 of a shield, measuring a first elevation difference delta hab between the first laser range finder 40 and the second laser range finder 50 and a second Gao Chengcha delta hac of the first laser range finder 40 and the third laser range finder 60, completing a ring pipe ring 20 after each assembling of the shield, measuring a first elevation difference delta hab, a second Gao Chengcha delta hac, a first interval delta HA1, a second interval delta HA2 and a third interval D, calculating an elevation value HB of a detection point corresponding to the second laser range finder 50, a current ring and elevation values of detection points on a plurality of pipe piece rings 20 behind the current ring by combining with a set elevation value HA of the first laser range finder 40, and calculating a value HN of a plurality of assembled ring rings according to a plurality of assembled ring rings 20.
The automatic segment settlement monitoring system in the embodiment is installed on a frame 30 at the tail of a shield, as the shield continuously tunnels, each time the shield finishes one ring pipe segment ring 20 after being assembled, an industrial personal computer 80 obtains and calculates the elevation value of a detection point on the corresponding segment ring 20, the settlement value of the segment ring 20 is calculated according to the difference value of a plurality of groups of elevation values, the elevation of the segment ring 20 is monitored in real time in the shield tunneling process to obtain the settlement data of the segment ring 20, the operation position of manual precision leveling is located at the center of the bottom of a segment, so that the automatic segment settlement monitoring system is not suitable for a large-diameter shield with a large-size segment feeding machine, and besides, for a small-diameter shield, the manual precision leveling requires that a segment transport vehicle is not located inside the frame 30 during operation, so that the operation time of the manual precision leveling is limited or the shield construction process is influenced. Compared with the existing manual precise leveling mode, the monitoring system can automatically acquire the elevation datum information in the shield tunneling process, does not delay the shield construction process, does not need manual measurement, realizes automatic monitoring, and improves the accuracy of segment ring 20 settlement monitoring.
Referring to fig. 2, in one embodiment, the high level measurement device comprises a first hydrostatic level mounted on a first laser rangefinder 40, a second hydrostatic level mounted on a second laser rangefinder 50, a third hydrostatic level mounted on a third laser rangefinder 60, a first water pipe and a first air pipe mounted between the first hydrostatic level and the second hydrostatic level, and a second water pipe and a second air pipe mounted between the second hydrostatic level and the third hydrostatic level; the first hydrostatic level, the second hydrostatic level and the third hydrostatic level are sequentially connected with one another and are connected with an industrial personal computer 80 of the shield.
Preferably, the high-rise measuring device comprises a first mounting table and a second mounting table, wherein the first mounting table corresponds to the first laser range finder 40 and is mounted on the top surface of the tail portion of the frame 30, the second mounting table corresponds to the second laser range finder 50 and is mounted on the top surface of the tail portion of the frame 30, the first laser range finder 40 and the first hydrostatic level are mounted on the first mounting table, and the second laser range finder 50 and the second hydrostatic level are mounted on the second mounting table.
Referring to fig. 2, further, the first laser range finder 40 is disposed in a direction corresponding to the direction of the central axis of the segment ring 20.
Referring to fig. 2, further, the monitoring system further includes a pan/tilt head 70 mounted on the top surface of the head of the carriage 30, and the third laser rangefinder 60 is rotatably mounted on the pan/tilt head 70.
Preferably, a third hydrostatic level is mounted on the head 70.
Referring to fig. 2, in a preferred embodiment, hardware of the present invention is composed of a laser range finder, a pan/tilt head 70, a hydrostatic leveling system, an industrial personal computer 80, a display device, a connecting line, a power supply device, and the like, and software is composed of integrated software for acquiring, processing, analyzing, and displaying segment settlement data carried on the industrial personal computer 80. The hardware connection condition is as follows, point A is the position that can observe the last ring pipe section ring 20 on the frame 30 afterbody, installs a laser range finder fixed in the top of frame 30 perpendicularly, point B is the position that can observe the penultimate ring section ring 20 on the frame 30 afterbody, installs a laser range finder fixed in the top of frame 30 perpendicularly, point C is the anterior top of frame 30, installs a cloud platform 70 that is fixed in the top of frame 30 to fix a laser range finder on cloud platform 70. A. B, C three points are simultaneously connected into the hydrostatic leveling system. The power supply equipment supplies power to the cradle head 70, the laser range finder, the hydrostatic leveling system, the industrial personal computer 80 and the display device through cables. Each module is connected with the industrial personal computer 80 through a connecting wire to realize instruction and data interaction, and the industrial personal computer 80 is connected with the display device through a connecting wire to realize the visualization of the settlement observation result of the pipe piece ring 20.
The working process of the shield construction segment settlement automatic monitoring system of the invention is explained below.
And establishing connection between the segment settlement data acquisition, processing, analysis and display integrated software and a current shield machine real-time database, and realizing real-time acquisition of data such as shield machine ring number, incision mileage, jack stroke, ring width of the segment ring 20 and the like.
And after the hardware connection is completed, initializing the system. And the point A laser range finder observes the top of the 1 st ring pipe, indicates the position of a measuring point by laser, manually guides and measures the measuring point elevation to a construction elevation system, and records the ring number, the cut mileage and the jack stroke of the current shield tunneling machine as initial values. And (4) observing the top of the No. 2 ring pipe by using a B point laser range finder, and recording the reading of the range finder. And actually measuring the vertical distance between the point A laser range finder and the inner arc surface of the segment ring 20 in the vertical state, and calculating the design vertical angle from the point C laser range finder to the assembled ring and the 8 ring measuring points behind the assembled ring. The pan-tilt head 70 controls the rotation of the C-point laser distance measuring instrument, performs distance observation on the assembled rings and 8 ring measuring points behind the assembled rings, performs projection correction according to a rotating vertical angle, wherein Δ hn = D × sin (β), D is the distance between the C-point laser distance measuring instrument and the measuring point on the corresponding segment ring 20, β is the vertical angle, calculates the vertical distance from the C-point laser distance measuring instrument to the corresponding segment ring 20, and then calculates the elevation of each ring measuring point.
The elevation of a measuring point on a corresponding pipe sheet ring 20 of the laser range finder at the point A is HA, the elevation difference between the measuring point from the point A to the measuring point on the pipe sheet ring 20 at the 1 st ring pipe is Delta HA1, the elevation difference between the point B to the measuring point on the pipe sheet ring 20 at the 2 nd ring pipe is Delta hb2, and the elevation difference between the point C to the measuring point of 8 rings after the splicing ring and the splicing ring is Delta hn, delta hn-1, delta hn-2, delta hn-3, delta hn-4, delta hn-5, delta hn-6, delta hn-7 and Delta hn-8. The elevation difference between the laser range finder at the point A and the laser range finder at the point B measured by the static leveling system is delta hab, the elevation difference between the laser range finder at the point A and the laser range finder at the point C is delta hac, the initial elevation of the measuring point on the segment ring 20 corresponding to the laser range finder at the point B is HB = HA-delta HA1 +. Delta hab +. Delta HB2, the assembled ring and the measuring point elevation on the 8 rings behind the assembled ring are calculated by taking the assembled ring as an example, and HN = HA-delta HA1 +. Delta hac +. Delta HN. Then the elevation of the first ring, the second ring, the assembled ring and the 8-ring measuring points behind the assembled ring are all known, and the system initialization is finished.
The shield machine tunnels a segment ring 20 length to trigger the next observation period. The A point laser range finder moves to the second ring along with the frame 30, and the laser range finder observes the top of the second ring pipe. The point B laser range finder moves to the third ring following the carriage 30 and the laser range finder observes the top of the third ring. The C-point pan-tilt 70 controls the rotation of the laser range finder, observes the distance between the new assembled ring and the 8 ring measuring points behind the new assembled ring, performs projection correction according to the vertical angle of rotation, and calculates the vertical distance from the laser range finder to each ring pipe sheet ring 20, wherein the projection correction is delta hn = D x sin (beta).
The elevation of the measuring point of the A point laser range finder corresponding to the pipe ring 20 is HA, because the apparatus is placed at a special position, the observing positions of the B point range finder in the previous period and the A point range finder in the current period on the measuring point of the 2 nd ring pipe ring 20 are consistent, HA is equal to HB in the previous period in number, the HA number in the current period is known, the distance difference between the A point and the measuring point of the 2 nd ring pipe ring 20 is Delta HA2, the distance difference between the B point and the measuring point of the 3 rd ring pipe ring 20 is Delta HB3, and the distance difference between the C point and the measuring point of the 8 rings after the new assembling ring and the assembling ring is Delta hn +1, delta hn-1, delta hn-2, delta hn-3, delta hn-4, delta hn-5, delta hn-6 and Delta hn-7. The height difference between the laser range finder at the point A and the laser range finder at the point B measured by the static leveling system is delta hab, and the height difference between the laser range finder at the point A and the laser range finder at the point C is delta hac. Then the initial elevation of the segment ring 20 measuring point corresponding to the laser range finder at point B is HB = HA- Δ HA2 +. Δ hab +. Δ HB3, and the elevation of the newly assembled ring and the 8 ring measuring points after the assembly of the ring are calculated by taking the newly assembled ring as an example, HN +1= HA- Δ HA2 +. Δ hac +. Δ HN +1. Then the elevation of the second ring, the third ring, the newly assembled ring and the 8-ring measuring point behind the assembled ring are all known.
At the moment, two elevation observation results exist from the Nth ring to the Nth-7 th ring, and the difference can be calculated to obtain the segment settlement values from the Nth ring to the Nth-7 th ring. And outputting the first settlement information to a display in the form of a graph.
The shield machine tunnels the ring width distance of one segment ring 20 to trigger the next observation period. A. 5363 and observing the corresponding position of the laser range finder at the three points B, C, and recording the data of the static leveling system. At the moment, two elevation observation results exist from the (N + 1) th ring to the (N-6) th ring, and the difference can be calculated to obtain the duct piece settlement values from the (N + 1) th ring to the (N-6) th ring. And outputting the first settlement information to a display in the form of a graph. And triggering the next observation period by the shield machine when the shield machine tunnels the ring width distance of one segment ring 20, and so on, wherein the settlement monitoring data from the assembled ring to 8 rings behind the assembled ring can be obtained when the shield machine tunnels the ring width distance of one segment ring 20.
And (5) assembling all the segment rings 20 of the whole tunnel by the shield tunneling machine, and finishing segment settlement monitoring.
Referring to fig. 3, the invention also provides a monitoring method using the shield construction segment settlement automatic monitoring system, which comprises the following steps:
s101: when the shield assembly is completed on the current segment ring 20, the industrial personal computer 80 controls the first laser range finder 40 to measure a first distance delta ha1 between the first laser range finder 40 and a detection point on the corresponding segment ring 20, and the industrial personal computer 80 controls the second laser range finder 50 to measure a second distance delta ha2 between the second laser range finder 50 and a detection point on the corresponding segment ring 20;
s102: the industrial personal computer 80 controls the third laser range finder 60 to rotate so that the third laser range finder 60 sequentially aligns with the current splicing ring and the detection points on the plurality of segment rings 20 behind the current splicing ring to detect a plurality of third distances D between the third laser range finder 60 and the current splicing ring and a plurality of detection points on the plurality of segment rings 20 behind the current splicing ring;
s103: the elevation measuring device 90 measures a first elevation difference delta hab between the first laser distance measuring instrument 40 and the second laser distance measuring instrument 50 and a second Gao Chengcha delta hac between the first laser distance measuring instrument 40 and the third laser distance measuring instrument 60;
s104: the industrial personal computer 80 obtains a first elevation difference delta hab, a second Gao Chengcha delta hac, a first distance delta HA1, a second distance delta HA2 and a third distance D at the current moment, and calculates an elevation value HB of a detection point corresponding to the second laser range finder 50, a current splicing ring and elevation values HN of detection points on a plurality of segment rings 20 behind the current splicing ring by combining a set elevation value HA of the detection point corresponding to the first laser range finder 40;
s105: and as the shield is continuously tunneled, the industrial personal computer 80 acquires and calculates the elevation value of the detection point on the corresponding segment ring 20, and calculates the settlement value of the segment ring 20 according to the difference of the elevation values of a plurality of groups.
Further, the elevation value HB of the detection point corresponding to the second laser range finder 50 is calculated according to the following formula:
HB＝HA-△ha1+△hab+△hb2；
the elevation value HA is a set elevation value of a corresponding detection point of the first laser range finder 40, the Δ HA1 is a first distance between the first laser range finder 40 and the detection point on the corresponding tube sheet ring 20, the Δ hab is a first elevation difference between the first laser range finder 40 and the second laser range finder 50, and the Δ hb2 is a second distance between the second laser range finder 50 and the detection point on the corresponding tube sheet ring 20.
In one embodiment, the vertical distance Δ hn between the third laser rangefinder 60 and the corresponding detection point on the segment ring 20 is calculated according to the following formula:
△hn＝D*sin(β)；
wherein D is the distance between the third laser range finder 60 and the detection point on the corresponding segment ring 20, and β is the angle between the third laser range finder 60 and the horizontal line.
Further, the elevation value HN of the detection point corresponding to the third laser range finder 60 is calculated according to the following formula:
HN＝HA-△ha1+△hac+△hn；
the elevation value HA is a set elevation value of a detection point corresponding to the first laser range finder 40, the Δ HA1 is a first distance between the first laser range finder 40 and the detection point on the corresponding tube sheet ring 20, the Δ hac is a second Gao Chengcha of the first laser range finder 40 and the third laser range finder 60, and the Δ hn is a vertical distance between the third laser range finder 60 and the detection point on the corresponding tube sheet ring 20.
Further, when the industrial computer 80 controls the rotation of the third laser range finder 60, the industrial computer 80 obtains an included angle β between the third laser range finder 60 and a horizontal line.
In one embodiment, in the initial calculation, HA is the initial setting;
in the subsequent calculation process, the set elevation HA of the detection point corresponding to the first laser distance meter 40 in the current monitoring is the elevation HB of the detection point corresponding to the second laser distance meter 50 in the previous monitoring.
Because the distance between the first laser distance meter 40 and the second laser distance meter 50 is equal to the ring width of the segment ring 20, when the shield tunnels a distance of the ring width of one segment ring 20, the first laser distance meter 40 moves forward and is aligned with the detection point corresponding to the second laser distance meter 50 in the previous monitoring, that is, the first laser distance meter 40 still monitors the elevation of the detection point corresponding to the second laser distance meter 50 in the previous monitoring in the current monitoring.
In the tunneling process of the shield, the cutting mechanism of the shield cuts the soil body, so that the soil body near the cutting mechanism at the head of the shield is disturbed, and then the segment ring 20 near the cutting mechanism near the head of the shield is easy to settle, while the segment ring 20 far away from the cutting mechanism at the head of the shield is basically not influenced by the cutting mechanism, namely, the segment ring 20 corresponding to the first laser range finder 40 does not consider the settling problem due to being far away from the cutting mechanism, so that in the subsequent calculation process, the set elevation value HA of the current detection point corresponding to the first laser range finder 40 is assigned as the elevation value HB of the detection point corresponding to the second laser range finder 50 in the monitoring data of the segment ring 20 at the previous time.
Further, when the shield finishes assembling all the pipe sheet rings 20 of the whole tunnel, the monitoring system stops monitoring.
Preferably, when the shield assembly is completed for the current segment ring 20, the third laser range finder 60 sequentially aligns the current assembly ring and the detection points on the 8 segment rings 20 behind the current assembly ring to detect a plurality of third distances D between the third laser range finder 60 and the current assembly ring and the detection points on the 8 segment rings 20 behind the current assembly ring.
By adopting the technical scheme, the invention has the following beneficial effects:
the monitoring system belongs to the field of intelligent shields, relates to the combined technology of a hydrostatic level system, a laser range finder, an industrial personal computer and the like, and is mainly used for solving the problem of settlement monitoring in the range from an assembling ring to an assembling ring back 8 rings in the shield construction process, and a set of automatic duct piece settlement monitoring system is reasonably planned, designed and established. The design structure is flexible, the duct piece settlement from the shield assembling ring to the assembling ring within the range of 8 rings can be monitored ring by ring, the hydrostatic leveling system and the laser distance meter are arranged in the middle of the top end of the frame, the acquisition of an elevation reference can be realized along with the shield propulsion, the settlement observation can be automatically carried out according to the set tunneling distance, and the shield construction is ensured to be smoothly carried out. The method is based on a hardware installation method and a calculation mode for automatically acquiring system elevation datum of a hydrostatic level system and a laser range finder, and the premise of automatic duct piece settlement observation is realized. The real-time instruction control and data interaction of the hydrostatic level system and the laser range finders are key technologies for realizing automatic duct piece settlement observation. Compared with a manual monitoring mode, the automatic monitoring system is high in automation degree and precision.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Claims (10)
1. The utility model provides a shield constructs construction section of jurisdiction settlement automatic monitoring system which characterized in that, monitoring system installs on the frame of shield tail, monitoring system includes:
the first laser range finder and the second laser range finder are vertically arranged on the top surface of the tail part of the frame and face the top of the tube sheet ring, the first laser range finder and the second laser range finder are connected with an industrial personal computer of the shield, the distance between the first laser range finder and the second laser range finder is equal to the ring width of the tube sheet ring, the first distance delta ha1 between the first laser range finder and a detection point on the corresponding tube sheet ring is measured through the first laser range finder, and the second distance delta ha2 between the second laser range finder and a detection point on the corresponding tube sheet ring is measured through the second laser range finder;
the third laser range finder is rotatably arranged on the top surface of the head of the frame and faces the top of the tube sheet ring, the third laser range finder, the first laser range finder and the second laser range finder are arranged in a horizontal direction in an aligned mode, the third laser range finder is in control connection with an industrial personal computer of the shield, the industrial personal computer controls the third laser range finder to rotate and adjust so that the third laser range finder can be sequentially aligned with the current splicing ring and detection points on the tube sheet rings behind the current splicing ring, and a plurality of third intervals D between the third laser range finder and the detection points on the current splicing ring and the tube sheet rings behind the current splicing ring are measured; and
the elevation measurement device is connected with an industrial personal computer of the shield and used for measuring a first elevation difference delta hab between the first laser range finder and the second laser range finder and a second Gao Chengcha Δ hac of the first laser range finder and the third laser range finder, and a ring pipe ring is assembled by the shield, and the elevation measurement device measures the first elevation difference delta hab, the second Gao Chengcha delta hac, the first interval delta HA1, the second interval delta HA2 and the third interval D, calculates HA a height setting value of the detection point corresponding to the first laser range finder, a current assembly ring and elevation assembly rings on a plurality of detection points behind the current assembly ring, and calculates a settlement value of the ring according to a plurality of elevation setting values of the difference values of the height assembly rings.
2. The monitoring method of the shield construction segment settlement automatic monitoring system according to claim 1, wherein the high-rise measuring device comprises a first hydrostatic level mounted on the first laser range finder, a second hydrostatic level mounted on the second laser range finder, a third hydrostatic level mounted on the third laser range finder, a first water pipe and a first air pipe mounted between the first hydrostatic level and the second hydrostatic level, and a second water pipe and a second air pipe mounted between the second hydrostatic level and the third hydrostatic level;
the first hydrostatic level gauge, the second hydrostatic level gauge and the third hydrostatic level gauge are sequentially connected and are connected with the shield industrial personal computer.
3. The shield construction segment sedimentation automatic monitoring system according to claim 1, wherein the arrangement direction of the first laser range finder is in accordance with the direction of the central axis of the segment ring.
4. The shield construction segment sedimentation automatic monitoring system according to claim 1, further comprising a cradle head mounted on a top surface of the frame head, the third laser range finder being rotatably mounted on the cradle head.
5. A monitoring method using the shield construction segment settlement automatic monitoring system as claimed in any one of claims 1 to 4, characterized by comprising the following steps:
when the shield assembly is completed, the industrial personal computer controls the first laser range finder to measure a first distance delta ha1 between the first laser range finder and a detection point on the corresponding segment ring, and controls the second laser range finder to measure a second distance delta ha2 between the second laser range finder and a detection point on the corresponding segment ring;
the industrial personal computer controls the third laser range finder to rotate so that the third laser range finder is sequentially aligned with the current assembling ring and the detection points on the plurality of segment rings behind the current assembling ring to measure a plurality of third distances D between the third laser range finder and the current assembling ring and among the detection points on the plurality of segment rings behind the current assembling ring;
the elevation measuring device measures a first height difference delta hab between the first laser distance measuring instrument and the second laser distance measuring instrument and a second Gao Chengcha delta hac between the first laser distance measuring instrument and the third laser distance measuring instrument;
the industrial personal computer obtains the first height difference delta hab, the second Gao Chengcha delta hac, the first distance delta HA1, the second distance delta HA2 and the third distance D at the current moment, and calculates an elevation value HB of a detection point corresponding to the second laser distance meter, a current splicing ring and elevation values HN of detection points on a plurality of tube sheet rings behind the current splicing ring by combining a set elevation value HA of the detection point corresponding to the first laser distance meter;
and the industrial personal computer acquires and calculates elevation values of detection points on the corresponding tube sheet rings along with the continuous tunneling of the shield, and calculates the settlement value of the tube sheet rings according to the difference values of a plurality of groups of elevation values.
6. The monitoring method of the shield construction segment settlement automatic monitoring system according to claim 5, wherein the elevation value HB of the corresponding detection point of the second laser range finder is calculated according to the following formula:
HB＝HA-△ha1+△hab+△hb2；
the height value HA is a set height value of a detection point corresponding to the first laser range finder, the distance delta HA1 is a first distance between the first laser range finder and the detection point on the corresponding tube sheet ring, the distance delta hab is a first height difference between the first laser range finder and the second laser range finder, and the distance delta hb2 is a second distance between the second laser range finder and the detection point on the corresponding tube sheet ring.
7. The monitoring method of the shield construction segment settlement automatic monitoring system according to claim 5, wherein the vertical distance Δ hn between the third laser distance measuring instrument and the detection point on the corresponding segment ring is calculated according to the following formula:
△hn＝D*sin(β)；
and D is the distance between the third laser range finder and the detection point on the corresponding tube sheet ring, and beta is the included angle between the third laser range finder and the horizontal line.
8. The monitoring method of the shield construction segment settlement automatic monitoring system according to claim 7, wherein the elevation value HN of the corresponding detection point of the third laser range finder is calculated according to the following formula:
HN＝HA-△ha1+△hac+△hn；
the elevation value HA is a set elevation value of a corresponding detection point of the first laser range finder, the distance delta HA1 is a first distance between the first laser range finder and the detection point on the corresponding tube sheet ring, the distance delta hac is a second Gao Chengcha of the first laser range finder and the third laser range finder, and the distance delta hn is a vertical distance between the third laser range finder and the detection point on the corresponding tube sheet ring.
9. The monitoring method of the automatic monitoring system for segment settlement in shield construction according to claim 7, wherein the industrial personal computer obtains an included angle β between the third laser range finder and a horizontal line when the industrial personal computer controls the rotation of the third laser range finder.
10. The monitoring method of an automatic monitoring system for shield construction segment settlement according to claim 5, wherein in the primary calculation, HA is an initial set value;
in the subsequent calculation process, the set elevation value HA of the detection point corresponding to the first laser distance meter in the current monitoring is the elevation value HB of the detection point corresponding to the second laser distance meter in the previous monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687234.2A CN115235416B (en) | 2022-06-16 | 2022-06-16 | Automatic monitoring system and method for shield construction segment settlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687234.2A CN115235416B (en) | 2022-06-16 | 2022-06-16 | Automatic monitoring system and method for shield construction segment settlement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115235416A true CN115235416A (en) | 2022-10-25 |
| CN115235416B CN115235416B (en) | 2023-10-13 |
Family
ID=83669282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210687234.2A Active CN115235416B (en) | 2022-06-16 | 2022-06-16 | Automatic monitoring system and method for shield construction segment settlement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115235416B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0875464A (en) * | 1994-09-07 | 1996-03-22 | Fujita Corp | Excavation confirming and measuring method for shield machine |
| CN104142137A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Tunnel longitudinal settlement monitoring method and device based on wireless tilt sensor |
| CN105973141A (en) * | 2016-04-29 | 2016-09-28 | 中铁建大桥工程局集团第二工程有限公司 | Device and method of measuring shield tunnel segment dislocation |
| CN107621258A (en) * | 2017-11-14 | 2018-01-23 | 璧甸福 | A kind of subsidence monitoring of foundation method based on differential principle |
| CN111101958A (en) * | 2020-01-10 | 2020-05-05 | 中铁二十二局集团轨道工程有限公司 | Construction method for tunnel shield interval lower penetrating and winding city |
| CN111350509A (en) * | 2020-01-21 | 2020-06-30 | 中铁二十二局集团轨道工程有限公司 | Muck improvement and grouting method for sandy gravel stratum tunnel shield construction |
| CN113551644A (en) * | 2021-08-06 | 2021-10-26 | 东华理工大学 | Shield constructs earth's surface settlement automatic monitoring device |
| CN113624202A (en) * | 2021-08-23 | 2021-11-09 | 北京中交桥宇科技有限公司 | Automatic subway tunnel deformation monitoring device and method |
-
2022
- 2022-06-16 CN CN202210687234.2A patent/CN115235416B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0875464A (en) * | 1994-09-07 | 1996-03-22 | Fujita Corp | Excavation confirming and measuring method for shield machine |
| CN104142137A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Tunnel longitudinal settlement monitoring method and device based on wireless tilt sensor |
| CN105973141A (en) * | 2016-04-29 | 2016-09-28 | 中铁建大桥工程局集团第二工程有限公司 | Device and method of measuring shield tunnel segment dislocation |
| CN107621258A (en) * | 2017-11-14 | 2018-01-23 | 璧甸福 | A kind of subsidence monitoring of foundation method based on differential principle |
| CN111101958A (en) * | 2020-01-10 | 2020-05-05 | 中铁二十二局集团轨道工程有限公司 | Construction method for tunnel shield interval lower penetrating and winding city |
| CN111350509A (en) * | 2020-01-21 | 2020-06-30 | 中铁二十二局集团轨道工程有限公司 | Muck improvement and grouting method for sandy gravel stratum tunnel shield construction |
| CN113551644A (en) * | 2021-08-06 | 2021-10-26 | 东华理工大学 | Shield constructs earth's surface settlement automatic monitoring device |
| CN113624202A (en) * | 2021-08-23 | 2021-11-09 | 北京中交桥宇科技有限公司 | Automatic subway tunnel deformation monitoring device and method |
Non-Patent Citations (3)
| Title |
|---|
| 冀念芬;: "地铁隧道盾构施工的沉降监测", 居舍, no. 23 * |
| 宋宜容;陈广峰;桂轶雄;张文平;: "地铁盾构施工中监测技术的研究", 青海大学学报(自然科学版), no. 01 * |
| 张志伟;贾艳敏;赵艳娟;: "地铁盾构法施工事故预防及处理措施", 铁道建筑, no. 11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115235416B (en) | 2023-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937437A (en) | Total station prism group, tube push bench guide system for tunnel construction and guide method of tube push bench guide system | |
| CN202938814U (en) | Total station prism groups and guide system of tube push bench for tunnel construction | |
| CN101413264B (en) | Lattice column triaxial automatic wireless real time hanging system and method | |
| CN108051835B (en) | Inclination measuring device based on double antennas and measuring and lofting method | |
| CN201858974U (en) | System for measuring axes of long-distance jacking pipe | |
| CN101266134A (en) | Cantilever driving frame head posture measuring systems and its method | |
| CN111829486B (en) | Shield construction ground settlement automatic monitoring method and system | |
| CN205300569U (en) | Tunnel warp monitoring facilities and system | |
| CN113959401B (en) | Aerial survey method and system for potential transmission line clearance distance unmanned aerial vehicle | |
| CN109268015B (en) | Guiding system and method for pipe jacking method connection channel construction based on discontinuous visibility | |
| CN115235416A (en) | Automatic monitoring system and method for shield construction segment settlement | |
| CN111608664A (en) | Automatic guiding method for long-distance curved jacking pipe | |
| CN109112936B (en) | Road surface flatness becomes more meticulous quick measuring device | |
| CN108592875B (en) | Novel calculation method for convergence displacement of contact type tunnel convergence monitoring system | |
| CN115218862B (en) | Automatic shield construction segment settlement monitoring system and method based on total station | |
| CN216115888U (en) | Shield tail clearance measuring system of shield machine | |
| CN115218862A (en) | Shield construction segment settlement automatic monitoring system and monitoring method based on total station | |
| CN113818486B (en) | Steel shell pipe joint segmented splicing precision control method | |
| CN111721262B (en) | Automatic guiding method for total station tracking in field elevation measurement | |
| CN110595378B (en) | Real-time ground surface or slope deformation monitoring device and method based on laser ranging principle | |
| CN210774058U (en) | Device for assisting GPS-RTK in accurate and rapid lofting | |
| CN209636264U (en) | Measure the device at the angle blast furnace material distribution chute α | |
| CN114353765B (en) | Oblique roadway waist line applying method | |
| JPH04309809A (en) | Inside tunnel measuring method in tunnel excavation work | |
| CN112921767B (en) | Highway centerline coordinate lofting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |