CN111854717A - Bracket device for tunnel engineering wire net measurement and measurement method thereof - Google Patents
Bracket device for tunnel engineering wire net measurement and measurement method thereof Download PDFInfo
- Publication number
- CN111854717A CN111854717A CN202010888226.5A CN202010888226A CN111854717A CN 111854717 A CN111854717 A CN 111854717A CN 202010888226 A CN202010888226 A CN 202010888226A CN 111854717 A CN111854717 A CN 111854717A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- measuring
- wire net
- bracket device
- frame body
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 73
- 238000000691 measurement method Methods 0.000 title description 4
- 238000009434 installation Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 20
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000013102 re-test Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/06—Surveyors' staffs; Movable markers
- G01C15/08—Plumbing or registering staffs or markers over ground marks
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a bracket device for measuring a wire net in tunnel engineering and a measuring method thereof. The bracket device for measuring the tunnel engineering wire net comprises a frame body, a mounting plate and a color reflection sheet, and represents a measurement control point. The support body has first installation department and second installation department, and first installation department is located the support body top, and first installation department is used for installing measuring instrument or prism. The second installation part is positioned on the side part of the frame body. The mounting panel is connected in the tip of support body for install the lateral part at the tunnel segment. The second installation department of support body is located to the contrary color piece, corresponds first installation department and sets up. Because the second installation department of support body is equipped with the reflection of color piece, be convenient for carry out retest to the measurement control point, guarantee the accuracy of coordinate transmission. This bracket device for tunnel engineering wire net measurement installs at the lateral part of tunnel section of jurisdiction, represents the measurement control point, realizes that the measurement control point goes up the wall, solves the unable scheduling problem of verifying of measurement control point. The measurement of the measurement control point and the tunnel construction can be synchronously carried out, and the tunnel construction progress cannot be influenced.
Description
Technical Field
The invention relates to the technical field of engineering measurement, in particular to a bracket device for measuring a wire net in tunnel engineering and a measuring method thereof.
Background
The plane control net in the field of subway construction is distributed in two stages, the first stage is a GPS control net, and the second stage is a precise wire net. Before construction, an owner can provide a certain number of GPS points and precise wire points to meet the requirements of construction units. The construction unit can encrypt ground precise lead points on the basis of a given plane control point, then throw points into the tunnel for orientation, and finally conduct construction control lead measurement in the tunnel in order to ensure the tunneling of the tunnel.
When measuring the control wire net in the tunnel, the traditional mode is to place total powerstation and prism in the bottom of tunnel section of jurisdiction, can't verify the measurement control point of control wire net like this to can't guarantee the accuracy of wire net measurement in-process coordinate transmission.
Disclosure of Invention
Accordingly, there is a need for a bracket device for measuring a wire net in tunnel engineering and a measuring method thereof, which can verify the measurement control of the wire net and can ensure the accuracy of coordinate transmission in the measurement process of the wire net.
A bracket device for tunnel engineering wire net measurement is used for showing a measurement control point, and comprises:
the frame body is provided with a first installation part and a second installation part, the first installation part is positioned at the top of the frame body, and the first installation part is used for installing a measuring instrument or a prism; the second mounting part is positioned on the side part of the frame body;
the mounting plate is connected to the end part of the frame body and is used for being mounted on the side part of the tunnel segment; and
the color reflection sheet is arranged on the second installation part of the frame body and corresponds to the first installation part.
In one embodiment, the bracket device for measuring the wire net in the tunnel engineering further comprises a horizontal detector, and the horizontal detector is arranged on the frame body.
In one embodiment, the level detector is a bubble level meter, and the bubble level meter is arranged at one end of the frame body close to the mounting plate.
In one embodiment, the bracket device for measuring the wire net in the tunnel engineering further comprises an alarm and an inclination detector, wherein the inclination detector is arranged on the frame body, and the inclination detector is electrically connected with the alarm.
In one embodiment, the bracket device for measuring the tunnel engineering wire mesh further comprises a warning component, and the warning component is arranged at one end of the frame body, which is far away from the mounting plate.
In one embodiment, the warning component is a warning lamp; or, the warning component is a reflective strip.
In one embodiment, the mounting plate is provided with at least four threaded holes, wherein the four threaded holes are respectively positioned at four corners of the mounting plate;
the bracket device for measuring the tunnel engineering wire net further comprises a plurality of fastening pieces, wherein the fastening pieces are correspondingly arranged in the threaded holes and used for installing the mounting plate on the tunnel segment.
In one embodiment, the rack body comprises a top plate and two side plates, and the two side plates are oppositely arranged on two sides of the top plate.
In one embodiment, the frame body comprises a first frame body and a second frame body connected with the mounting plate, the first frame body is telescopically connected with the second frame body, and the measurement control point is arranged on the first frame body.
A tunnel engineering wire net measuring method comprises the following steps:
in the tunnel, laying a bracket device for measuring a tunnel engineering wire net on two sides of a tunnel segment of a line in the middle of the tunnel;
arranging measurement control points on one side of a tunnel segment of a line in the line, wherein the measurement control points form a wire net, and the wire net is arranged into a plurality of connected strip-shaped wire rings;
measuring a measurement control point in the tunnel by combining the directional measurement of the vertical shaft;
and after the control points to be measured are measured without errors, extending the wire network in the tunnel excavation direction.
According to the bracket device for measuring the tunnel engineering wire net and the measuring method thereof, the bracket body is arranged on the side part of the tunnel segment through the mounting plate, and the measuring instrument or the prism is arranged on the first mounting part, so that the measuring control point in the tunnel can be measured. In the process of tunnel construction, tunnel segments may settle due to the soil properties of the formation. Because the second installation part of the frame body is provided with the color reflection sheet, the color reflection sheet can be observed by adopting measuring instruments such as a total station instrument and the like to judge whether the position of the bracket device changes or not, so that the position of the bracket device is convenient to adjust in time, namely, the re-measurement is carried out on the measurement control point, and the accuracy of the coordinate transmission of the measurement control point is ensured. This bracket device for tunnel engineering wire net measurement installs at the lateral part of tunnel section of jurisdiction, represents the measurement control point, realizes the purpose that the measurement control point goes up the wall, solves the measurement control point and can't verify, the measurement control point is covered scheduling problem such as easily by ponding, earth. The bracket device is arranged on the tunnel segment and represents a measurement control point, so that the point alignment is forced, and the procedures of the point alignment of the triangular support are reduced. When measuring, install measuring instrument or prism in the first installation department of support body, because this bracket device is installed in the lateral part of tunnel section of jurisdiction, measurement and the tunnel construction of measuring the control point like this can go on in step, so can not influence the tunnel construction progress.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bracket device for measuring a wire net in tunnel engineering according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the bracket device for measuring a wire net in tunnel engineering shown in FIG. 1 from another perspective;
fig. 3 is a cross-sectional view of a tunnel segment in accordance with an embodiment of the present invention;
FIG. 4 is a diagram illustrating the layout of measurement control points in a tunnel according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for measuring a wire mesh in tunnel engineering according to an embodiment of the present invention.
Reference numerals:
10. a frame body; 11. a top plate; 111. mounting holes; 12. a side plate; 20. mounting a plate; 21. a threaded hole; 30. a color-reflecting sheet; 40. a level detector; 41. a bubble level; 50. a tilt detector; 51. an alarm; 60. a warning component; 70. a tunnel segment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view illustrating a bracket device for measuring a wire net in a tunnel engineering according to an embodiment of the present invention, and fig. 2 is a schematic structural view illustrating the bracket device for measuring a wire net in a tunnel engineering from another perspective view illustrated in fig. 1. The bracket device for measuring the wire net in the tunnel engineering is used for representing a measurement control point. The bracket device for measuring the wire net in the tunnel engineering comprises a frame body 10, a mounting plate 20 and a reverse color sheet 30. The frame body 10 has a first installation part and a second installation part, the first installation part is located at the top of the frame body 10, and the first installation part is used for installing a measuring instrument or a prism. The second mounting portion is located at a side portion of the frame body 10. The mounting plate 20 is connected to the end of the frame 10 for mounting on the side of the tunnel segment 70. The color filter 30 is disposed at the second mounting portion of the frame body 10 and corresponds to the first mounting portion.
In the traditional tunnel construction process, constructors can measure all the measurement control points of the plane control network to obtain the coordinates of all the measurement control points. One of the measurement methods is to arrange the measurement control points of the wire mesh at the bottom of the tunnel segment 70, and measure the measurement control points at the bottom of the tunnel segment 70 by using a total station and a prism. If the measurement control point is located at the lowest point of the downward slope section of the tunnel segment 70, the measurement control point is often covered by accumulated water or soil, so that the precision of the measurement control point cannot be verified, and the cleaning work of the measurement control point is time consuming. If a weak stratum is encountered, the tunnel segment 70 is easy to displace, so that the measurement control point is changed. The other measurement mode is to arrange the measurement control point of the wire net at the center of the muck truck, and measure the measurement control point at the center of the muck truck by using a total station and a prism, but the arrangement height of the measurement control point is high. In the embodiment, the bracket device for measuring the wire net in the tunnel engineering is installed at the side part of the tunnel segment 70, represents a measurement control point, achieves the purpose of putting the measurement control point on the wall, and solves the problems. When measuring, the measuring instrument or the prism is installed at the first installation part of the frame body 10, and since the bracket device is installed at the side part of the tunnel segment 70, the measurement of the measuring control point and the tunnel construction can be performed synchronously, so that the tunnel construction progress is not affected. In addition, the bracket device is installed on the tunnel tube sheet 70 to indicate the measurement control point, so that the point alignment is forced, and the procedures of the point alignment of the triangular support are reduced.
In the bracket device for measuring the wire net in the tunnel engineering, the frame body 10 is arranged on the side part of the tunnel segment 70 through the mounting plate 20, and then the measuring instrument or the prism is arranged on the first mounting part, so that the measuring control point in the tunnel can be measured. During tunnel construction, the tunnel segments 70 may settle due to the formation soil. Because the second installation part of the frame body 10 is provided with the color reflection sheet 30, the color reflection sheet 30 can be observed by adopting measuring instruments such as a total station instrument and the like to judge whether the position of the bracket device changes or not, so that the position of the bracket device is convenient to adjust in time, namely, the retest is carried out on the measurement control point, and the accuracy of the transmission of the coordinates of the measurement control point is ensured.
In one embodiment, referring to fig. 1 and 2, the first mounting portion of the frame body 10 is provided with a mounting hole 111. Specifically, the mounting holes 111 are threaded holes. During installation, the measuring instrument or the prism is placed on the frame body 10, the fixing hole of the measuring instrument or the prism is made to correspond to the installation hole 111 of the frame body 10, and then the fastening member is inserted into the fixing hole and the installation hole 111, so that the measuring instrument or the prism is fixed on the frame body 10.
Further, the mounting hole 111 is formed at a middle portion of the top surface of the frame body 10. Alternatively, the mounting hole 111 is formed on a side portion of the top surface of the frame body 10 away from the mounting plate 20. Therefore, after the measuring instrument is installed on the frame body 10, a certain space is reserved between the measuring instrument and the tunnel segment 70, so that a constructor can conveniently adjust the adjusting knob on the side part of the measuring instrument, and the use is more convenient.
In one embodiment, referring to fig. 3, fig. 3 illustrates a cross-sectional view of a tunnel segment in accordance with an embodiment of the present invention. The bracket device for measuring the wire net in the tunnel engineering is arranged at 3 point positions or 9 point positions of the tunnel segment 70. Therefore, the transmission of the coordinates of the measurement control points is more accurate; meanwhile, it is convenient for constructors to install the bracket device on the tunnel segment 70, and the tunnel construction progress is not affected.
Referring to fig. 3, the tunnel segment 70 is transversely cut to obtain a transverse section of the tunnel segment 70. The tunnel segment 70 of the cross section is uniformly divided into a plurality of parts by the point positions, for example, in this embodiment, 11 point positions are provided, and the tunnel segment 70 of the cross section is divided into 10 equal parts by the 11 point positions. Specifically, according to different assembly point positions of the top sealing block, the numbers 1, 2 and 3 … … 11 are 11 point bit lines in total, wherein the 1 point bit line rotates by 18 degrees in the clockwise direction from the position of a clock 12 point, the 2 point rotates by 36 degrees in the clockwise direction on the basis of the 1 point, and the positions of all the point positions are obtained through subclass pushing.
In one embodiment, referring to fig. 1 and 2, the bracket device for measuring a wire net in a tunnel engineering further includes a level detector 40, and the level detector 40 is disposed at the first installation portion of the frame body 10. Through setting up horizontal detector 40 at the first installation department of support body 10, the constructor of being convenient for detects whether level of the first installation department of support body 10 to judge whether horizontal installation of support body 10. If the first installation part is not in a horizontal state, the constructor adjusts the frame body 10 when observing the horizontal detector 40 until the frame body 10 is horizontally installed, so that the horizontal installation of the measuring instrument or the prism can be ensured, and the accuracy of the coordinate transmission of the measuring control point is improved.
Optionally, the level detector 40 is a bubble level 41. The bubble level 41 has a level tube with a curved inner wall having a radius of curvature and a liquid filled in the level tube. When the level vial 41 is tilted, the bubble in the vial moves toward the raised end of the level vial 41, thereby determining the position of the first mounting plate 20. The bubble level 41 has a simple structure, low cost and convenient use. Of course, the level detector 40 may be other types of levels.
Further, referring to fig. 1 and 2, the level detector 40 is disposed at one end of the first mounting portion of the frame body 10 close to the mounting plate 20. Like this, constructor can conveniently observe the level gauge 40 when installing mounting panel 20 at tunnel segment 70 to accomplish the adjustment of support body 10 fast according to the instruction of level gauge 40, be in the horizontality until the first installation department of support body 10. In the present embodiment, the bubble level 41 is disposed at one end of the first mounting portion of the frame body 10 close to the mounting plate 20.
In one embodiment, referring to fig. 1 and 2, the bracket device for measuring a wire net in tunnel engineering further comprises an inclination detector 50 and an alarm 51. The inclination detector 50 is arranged on the frame body 10, and the inclination detector 50 is electrically connected with the alarm 51. Specifically, the tilt sensor 50 is provided at the second mounting portion of the housing 10. This bracket device installs at tunnel segment 70's in-process, or the bracket device installs behind tunnel segment 70, if support body 10 slope, slope detector 50 just can detect support body 10 slope to with signal transmission to alarm 51, warn through alarm 51, remind the constructor in time to adjust support body 10.
Alternatively, the alarm 51 may be a warning lamp electrically connected to the tilt detector 50. If support body 10 slopes, through the alarm lamp scintillation, remind constructor in time to adjust support body 10. Alternatively, the alarm 51 may be an audible alarm 51, such as a buzzer, and the audible alarm 51 may be electrically connected to the tilt detector 50. If the frame body 10 inclines, a buzzer makes a sound to remind a constructor to adjust the frame body 10 in time. Alternatively, the alarm 51 is an audible and visual alarm 51, and the audible and visual alarm 51 is electrically connected to the tilt detector 50. If the frame body 10 is inclined, the audible and visual alarm 51 gives an alarm sound and lights to remind the constructor to adjust the frame body 10 in time.
In one embodiment, referring to fig. 1 and 2, the bracket device for measuring a wire mesh in tunnel engineering further includes a warning member 60, and the warning member 60 is disposed at an end of the frame body 10 away from the mounting plate 20. It is understood that the warning member 60 is provided at both ends of the housing 10 opposite to the mounting plate 20. It should be noted that, after the bracket device is installed on the tunnel segment 70, one end of the frame body 10 away from the installation plate 20 faces the other side of the tunnel segment 70, so that in the process of tunnel construction, a constructor can easily collide with the bracket device by mistake, and scratch the constructor, and at the same time, the bracket device is easy to loosen, skew and the like, even fall off under the action of external force. Through set up warning part 60 in the one end that mounting panel 20 was kept away from to support body 10, warning part 60 plays the effect of warning, avoids constructor mistake to hit this bracket device.
Optionally, the warning member 60 is a warning light. Alternatively, the warning member 60 is a reflective warning strip. Warning light or reflection of light warning strip homoenergetic are enough played the effect of warning, remind constructor this department to install the bracket device, on the one hand, avoid constructor mistake to hit this bracket device and the scratch, and on the other hand avoids this bracket device not hard up, crooked, drop etc. under the effect of external force.
In one embodiment, referring to fig. 1 and 2, the mounting plate 20 is provided with at least four threaded holes 21, wherein the four threaded holes 21 are located at four corners of the mounting plate 20, respectively. The bracket device for measuring the tunnel engineering wire net further comprises a plurality of fastening pieces, wherein the fastening pieces are correspondingly arranged in the threaded holes 21 and used for installing the installation plate 20 on the tunnel segment 70. Therefore, the mounting plate 20 and the frame body 10 can be stably mounted on the tunnel segment 70, and the mounting stability is improved.
Optionally, the fastener is a bolt and the bolt is a copper bolt. The carriage assembly is permanently fixed to the tunnel segment 70 and measures the measurement control points. And the copper bolt possesses durable characteristics, can firmly install mounting panel 20 and support body 10 in tunnel section of jurisdiction 70 through the copper bolt, improves the stability of installation. Of course, the fastening member may also be a screw, and the fastening member may also be made of other materials, such as stainless steel, and the like, but not limited thereto.
In one embodiment, referring to fig. 1 and 2, the frame body 10 includes a top plate 11 and two side plates 12, and the two side plates 12 are oppositely disposed at two sides of the top plate 11. It is understood that the frame 10 is a U-shaped frame 10. Therefore, measuring instruments or prisms such as a total station instrument can be mounted on the top plate 11 of the frame body 10, and the color reflection sheet 30 is mounted on the side plate 12 of the frame body 10, so that the mounting requirements of all the parts are met. In addition, the side plates 12 are relatively positioned at two sides of the top plate 11, that is, the side plates 12 are hollow, so that the weight of the frame body 10 can be reduced, and the cost can be saved.
In one embodiment, the frame 10 includes a first frame and a second frame connected to the mounting plate 20, the first frame is telescopically connected to the second frame, and the first mounting portion is disposed on the first frame. So, can realize the regulation of support body 10, be convenient for according to the demand of tunnel construction, tunnel section of jurisdiction 70 etc. adjust support body 10, make measuring instrument or prism locate suitable position in tunnel section of jurisdiction 70, use more in a flexible way.
Specifically, the lateral part of first support body is equipped with first bar hole, and first bar hole sets up along the length direction of first support body. The lateral part of second support body corresponds and is equipped with second bar hole, and second bar hole sets up along the length direction of second support body. During the installation, the first bar hole of first support body corresponds the setting with the second bar hole of second support body, wears to locate first bar hole and second bar hole through fasteners such as bolts, realizes the fixed of first support body and second support body. The fastener is unscrewed, and the first frame body and the second frame body can move under the action of external force; after the first support body and the second support body move to proper positions, the fasteners are screwed down, and the first support body and the second support body are fixed. Of course, in other embodiments, a plurality of mounting holes 111 may be formed in the side portions of the first frame body and the second frame body, the mounting holes 111 of the first frame body and the mounting holes 111 of the second frame body are correspondingly formed, and fasteners such as bolts are inserted into the mounting holes 111 of the first frame body and the second frame body to fix the first frame body and the second frame body.
In one embodiment, the tunnel engineering wire mesh measurement bracket devices are spaced apart along the length of the tunnel segment 70. For example, the length of the tunnel is 2000 meters, and in a curve section, due to the short sight distance of the tunnel in the curve section, a bracket device is arranged at about every 100 m; if in the straight line section, the spacing of the net carriage means may be increased appropriately. In the process of transmitting the coordinates forward, the coordinates are transmitted to a bracket device (prism placing position) newly installed forward through a known bracket device. When measuring, a measuring instrument, such as a total station, is arranged on a bracket in a measuring area, and a front bracket device or a rear bracket device is selected to place a prism for azimuth positioning, so as to measure.
Referring to fig. 4 and 5, fig. 4 shows a layout diagram of measurement control points in a tunnel according to an embodiment of the present invention, and fig. 5 shows a measurement method of a wire network in a tunnel engineering according to an embodiment of the present invention. A tunnel engineering wire net measuring method specifically comprises the following steps:
s10, arranging bracket devices for tunnel engineering wire net measurement on two sides of a tunnel segment 70 of a middle line of a line in the tunnel;
it should be noted that, in the subway tunnel construction, the subway line is divided into a positive line and a negative line, and thus the positive line and the negative line need to be laid respectively to be laid with the bracket device for measuring the tunnel engineering wire network.
Specifically, a bracket device for measuring the wire mesh of the tunnel engineering is arranged every 100 rings (150m) on the tunnel segment 70. Of course, the distance of the bracket device for measuring the wire net for laying the tunnel engineering can be set according to actual requirements, and is not limited to this.
S20, arranging measurement control points on one side of the tunnel tube sheet 70 in the middle line of the line, wherein the measurement control points form a wire net, and the wire net is arranged into a plurality of connected strip-shaped wire rings.
It should be noted that the tunnel has a straight line segment and a curved line segment, and the side lengths of the straight line segment and the curved line segment need to be controlled. Specifically, the side length of the straight line section wire is controlled to be 150-200 m, and the side length of the curve section wire is not less than 60-80 m. By controlling the side length ratio of the straight-line section and the curve section, the length can be ensured to meet the requirement, and the short-time focusing error during observation can be reduced.
And S30, measuring the measurement control points in the tunnel in combination with the shaft orientation measurement.
Specifically, the interior calculation adopts a strict adjustment method. Before each wire extension measurement in the tunnel, the previous wire point is detected and extended forwards after no error. In the shield construction process of each interval, the wire network is measured 5 times before the tunnel is penetrated, and the measurement time is synchronous with the shaft orientation. After the test results are rechecked in three levels, the test results must meet the requirements of relevant measurement specifications, and are simultaneously reported to a supervisor and an owner's accurate team for rechecking, so that the test results can be used in the next procedure without errors. And when the difference between the coordinate value repeatedly measured by the coincident point and the coordinate value originally measured is less than +/-10 mm, adopting a successive weighted average value as a calculation value for construction control lead extension measurement.
And S40, after the control points to be measured are measured without errors, extending the wire network in the tunnel excavation direction.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A bracket device for measuring a tunnel engineering wire net is characterized by being used for representing a measurement control point, and comprising:
the frame body is provided with a first installation part and a second installation part, the first installation part is positioned at the top of the frame body, and the first installation part is used for installing a measuring instrument or a prism; the second mounting part is positioned on the side part of the frame body;
the mounting plate is connected to the end part of the frame body and is used for being mounted on the side part of the tunnel segment; and
the color reflection sheet is arranged on the second installation part of the frame body and corresponds to the first installation part.
2. The bracket device for measuring the wire net in the tunnel engineering according to claim 1, further comprising a level detector, wherein the level detector is disposed on the frame body.
3. The bracket device for measuring the wire net in the tunnel engineering according to claim 2, wherein the level detector is a bubble level meter, and the bubble level meter is arranged at one end of the frame body close to the mounting plate.
4. The bracket device for measuring the tunnel engineering wire network according to claim 1, further comprising an alarm and an inclination detector, wherein the inclination detector is arranged on the frame body, and the inclination detector is electrically connected with the alarm.
5. The bracket device for measuring the tunnel engineering wire net according to claim 1, further comprising a warning member, wherein the warning member is disposed at an end of the frame body away from the mounting plate.
6. The bracket device for measuring the wire net in the tunnel engineering according to claim 5, wherein the warning component is a warning lamp; or, the warning component is a reflective strip.
7. The bracket device for measuring the wire net in the tunnel engineering according to any one of the claims 1 to 6, wherein the mounting plate is provided with at least four threaded holes, wherein the four threaded holes are respectively positioned at four corners of the mounting plate;
the bracket device for measuring the tunnel engineering wire net further comprises a plurality of fastening pieces, wherein the fastening pieces are correspondingly arranged in the threaded holes and used for installing the mounting plate on the tunnel segment.
8. The bracket device for measuring the wire net in the tunnel engineering according to any one of claims 1 to 6, wherein the bracket body comprises a top plate and two side plates, and the two side plates are oppositely arranged on two sides of the top plate.
9. The bracket device for measuring a wire net in tunnel engineering according to any one of claims 1 to 6, wherein the bracket body comprises a first bracket body and a second bracket body connected with the mounting plate, the first bracket body is telescopically connected with the second bracket body, and the measurement control point is arranged on the first bracket body.
10. A tunnel engineering wire net measuring method is characterized by comprising the following steps:
in the tunnel, laying a bracket device for measuring a tunnel engineering wire net on two sides of a tunnel segment of a line in the middle of the tunnel;
arranging measurement control points on one side of a tunnel segment of a line in the line, wherein the measurement control points form a wire net, and the wire net is arranged into a plurality of connected strip-shaped wire rings;
measuring a measurement control point in the tunnel by combining the directional measurement of the vertical shaft;
and after the control points to be measured are measured without errors, extending the wire network in the tunnel excavation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888226.5A CN111854717A (en) | 2020-08-28 | 2020-08-28 | Bracket device for tunnel engineering wire net measurement and measurement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888226.5A CN111854717A (en) | 2020-08-28 | 2020-08-28 | Bracket device for tunnel engineering wire net measurement and measurement method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111854717A true CN111854717A (en) | 2020-10-30 |
Family
ID=72967309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010888226.5A Pending CN111854717A (en) | 2020-08-28 | 2020-08-28 | Bracket device for tunnel engineering wire net measurement and measurement method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111854717A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661737A (en) * | 2012-05-30 | 2012-09-12 | 上海隧道工程股份有限公司 | Automatic group measurement system and automatic group measurement method for settlement deformation of tunnel structure |
| CN205858357U (en) * | 2016-06-21 | 2017-01-04 | 中国电建集团铁路建设有限公司 | Shield range restraint measures the mounting structure of forced centering bracket |
| CN109029277A (en) * | 2018-06-27 | 2018-12-18 | 常州沃翌智能科技有限公司 | A kind of tunnel deformation monitoring system and method |
| CN208621089U (en) * | 2018-08-09 | 2019-03-19 | 广州市第一市政工程有限公司 | Exempt from tripod measuring table device in a kind of tunnel |
| CN109855612A (en) * | 2019-04-02 | 2019-06-07 | 中铁十二局集团有限公司 | A kind of forced centering structure and its centering method for tunnel traverse survey inside tunnel |
| CN110344454A (en) * | 2019-07-31 | 2019-10-18 | 中交第二航务工程局有限公司 | A kind of impact drill construction stake foundation pile position capacity checking device and its check method |
| CN110487258A (en) * | 2019-08-26 | 2019-11-22 | 中铁二局集团有限公司 | A kind of prism bracket device and its application method |
| CN212458387U (en) * | 2020-08-28 | 2021-02-02 | 广州市盾建地下工程有限公司 | Bracket device for tunnel engineering wire net measurement |
-
2020
- 2020-08-28 CN CN202010888226.5A patent/CN111854717A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661737A (en) * | 2012-05-30 | 2012-09-12 | 上海隧道工程股份有限公司 | Automatic group measurement system and automatic group measurement method for settlement deformation of tunnel structure |
| CN205858357U (en) * | 2016-06-21 | 2017-01-04 | 中国电建集团铁路建设有限公司 | Shield range restraint measures the mounting structure of forced centering bracket |
| CN109029277A (en) * | 2018-06-27 | 2018-12-18 | 常州沃翌智能科技有限公司 | A kind of tunnel deformation monitoring system and method |
| CN208621089U (en) * | 2018-08-09 | 2019-03-19 | 广州市第一市政工程有限公司 | Exempt from tripod measuring table device in a kind of tunnel |
| CN109855612A (en) * | 2019-04-02 | 2019-06-07 | 中铁十二局集团有限公司 | A kind of forced centering structure and its centering method for tunnel traverse survey inside tunnel |
| CN110344454A (en) * | 2019-07-31 | 2019-10-18 | 中交第二航务工程局有限公司 | A kind of impact drill construction stake foundation pile position capacity checking device and its check method |
| CN110487258A (en) * | 2019-08-26 | 2019-11-22 | 中铁二局集团有限公司 | A kind of prism bracket device and its application method |
| CN212458387U (en) * | 2020-08-28 | 2021-02-02 | 广州市盾建地下工程有限公司 | Bracket device for tunnel engineering wire net measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7987605B2 (en) | Reflector target tripod for survey system with light emitter and pivoting bracket for enhanced ground marking accuracy | |
| CN106461390A (en) | Multifunction laser leveling tool | |
| CN212458387U (en) | Bracket device for tunnel engineering wire net measurement | |
| CN212477846U (en) | Foundation pit horizontal displacement monitoring device | |
| CN111854717A (en) | Bracket device for tunnel engineering wire net measurement and measurement method thereof | |
| US10514464B2 (en) | Portable prism receiver and improved portable GPS receiver and measurement method using same | |
| CN109631946B (en) | Method and system for testing precision of laser inclinometer | |
| CN115854218B (en) | Centering and leveling equipment for engineering measurement | |
| CN210108333U (en) | Vault settlement measuring device based on precise laser range finder | |
| CN210797670U (en) | Deep basal pit supporting construction top horizontal displacement monitoring devices | |
| KR101494852B1 (en) | Precision improvement leveling system | |
| JP2011007574A (en) | Target for measuring vertical precision of steel pipe and method of installing the target | |
| KR101925615B1 (en) | Wall mount assembly for laser leveler | |
| CN217304225U (en) | Soil pressure box embedding device and soil pressure detection device | |
| CN102322854A (en) | Tunnel monitoring measuring point and TSP (Total Suspended Particulate) blasthole layout device and method | |
| KR200399594Y1 (en) | Instrument for measuring two dimensional deformation in tunnels | |
| CN110206075B (en) | Device for monitoring horizontal displacement of top of deep foundation pit supporting structure and application method | |
| CN109286157A (en) | A kind of subway trackless section cable bearer localization method | |
| CN210086324U (en) | High-precision scale device for measuring horizontal displacement change of foundation pit pile top by sight alignment method | |
| CN114544921B (en) | Device and method for measuring uneven shrinkage of inorganic binder stabilizing material | |
| CN219589628U (en) | Roadway deformation measuring instrument for cross point distribution method | |
| CN115950389B (en) | Non-contact non-interference water and soil loss monitoring method | |
| CN218781793U (en) | Slope protection slope measuring mechanism for channel | |
| CN113654468B (en) | Laser measuring device for monitoring horizontal displacement of comprehensive pipe rack and use method | |
| CN216348380U (en) | Measuring device for road guardrail |
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 |