CN104132644A - Device for tunnel section measuring point lofting - Google Patents
Device for tunnel section measuring point lofting Download PDFInfo
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- CN104132644A CN104132644A CN201410361485.7A CN201410361485A CN104132644A CN 104132644 A CN104132644 A CN 104132644A CN 201410361485 A CN201410361485 A CN 201410361485A CN 104132644 A CN104132644 A CN 104132644A
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- expansion plate
- section
- tunnel cross
- setting
- point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
- G01C7/06—Tracing profiles of cavities, e.g. tunnels
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- 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
Abstract
The invention discloses a device and a method for tunnel section measuring point lofting. The device comprises a base plate, lasers, a first expansion plate and a second expansion plate. The base plate is provided with a through chamber. The first expansion plate and the second expansion plate are opposite and are partly sleeved by the through chamber. Opposite sides of the first expansion plate and the second expansion plate are respectively provided with a first rack and a second rack meshed with the first rack. An adjustment screw is arranged between the first rack and the second rack. The adjustment screw provides power for driving the first expansion plate and the second expansion plate to stretch out of the through chamber. Each one of the first expansion plate and the second expansion plate is provided with multiple installation holes. The base plate is provided with a through hole communicated with the through chamber. The lasers are installed in the installation holes. When the first expansion plate and the second expansion plate move, the lasers invariably stretch out of the through holes. The device has high work efficiency, greatly reduces labor and manpower and improves economic benefits.
Description
Technical field
The present invention relates to tunnel survey technical field, relate in particular to a kind of tunnel cross-section measurement laying out apparatus and tunnel cross-section measurement setting out method.
Background technology
Tunnel cross-section measurement is the displacement that the factors such as a point factorial geology, construction cause moulding tunnel cross-section to produce, and by calculating tunnel cross-section real offset, judge that whether drive a vehicle can be by design and installation, and mats formation correction is provided for track.Basic work and critical process that section survey is installed as track, play an important role to the quality control of engineering.When section survey, need first on tunnel duct piece, to mark the position of each section survey point, traditional method is to carry out setting-out by spirit-leveling instrument section survey point is found out at present, then is marked on the inwall of section of jurisdiction.But because design section design point position between each section is conventionally different, the design attitude of each section point must pass through level setting-out out by actual measurement mileage and corresponding design altitude, and the quantity of section survey point is more, once can only mark a section survey point by spirit-leveling instrument setting-out, therefore the setting-out absolute altitude of section survey point need to drop into a large amount of manpower and materials, workload is very big, inefficiency, and data processing work amount is large, even have a strong impact on not in time construction speed because result of calculation provides, cause economic loss.
Summary of the invention
The object of the present invention is to provide a kind of tunnel cross-section measurement point laying out apparatus, can reach the object that work efficiency is high, reduce manpower and materials input and increase economic efficiency.
For realizing object of the present invention, the technical scheme of taking is:
A kind of tunnel cross-section measurement point laying out apparatus comprises base plate, laser instrument, the first expansion plate and the second expansion plate, base plate is provided with cavity, the first expansion plate and the second expansion plate are oppositely arranged, and part is sheathed in cavity, the first expansion plate, the side that the second expansion plate is relative is respectively equipped with intermeshing the first tooth bar, the second tooth bar, between the first tooth bar and the second tooth bar, be provided with adjustable screw, adjustable screw provides power to make the first expansion plate and the second expansion plate stretch out cavity, the first expansion plate and the second expansion plate are equipped with multiple mounting holes, base plate is provided with the through hole that is communicated with cavity, laser instrument is located in mounting hole, when the first expansion plate and the second expansion plate move, laser instrument stretches out through hole all the time.
By rotation adjustable screw, make the first expansion plate and the second expansion plate outwards or move inward simultaneously, realize the adjustment of tunnel cross-section measurement point laying out apparatus installation length, tunnel cross-section measurement point laying out apparatus installation length is determined by the physical length of crossing with rail level line 2 of section; A corresponding mounting hole of section survey point, the gross data that the installation of laser instrument is put by section survey arranges; Tunnel cross-section measurement is put to laying out apparatus and is arranged on the surface level at section two places crossing with rail level line, open laser instrument, laser instrument is incident upon laser spots position on tunnel cross-section and is the layout point position of section survey point.Put laying out apparatus by tunnel cross-section measurement, section survey can be put to disposable being marked, work efficiency is high; The specification in general same tunnel is identical, the mutual alignment of theoretical profile measurement point is identical, and a kind of tunnel of specification only need configure a tunnel cross-section measurement point laying out apparatus, can realize the setting-out of section survey point, therefore reduce widely manpower and materials and drop into, increase economic efficiency.
Below technical scheme is further illustrated:
Further, the line of centres of multiple mounting holes is parallel with cavity axis.The measurement point of tunnel cross-section is in the same plane, the line of centres of multiple mounting holes is parallel with cavity axis, when installation, by adjusting the position of tunnel cross-section measurement point laying out apparatus, the line of centres of multiple mounting holes and the straight line at section two places crossing with rail level line are overlapped, mounting hole center and section survey point are in the same plane, make the installation setting of laser instrument more simple, and improve the precision of tunnel cross-section measurement point laying out apparatus, and be convenient at different cross section regulation tunnel cross-section measurement point laying out apparatus, improve the versatility of tunnel cross-section measurement point laying out apparatus.
Further, mounting hole is inclined hole, and through hole is bar hole, and when the first expansion plate and the second expansion plate move, inclined hole is positioned under bar hole all the time.The measurement point of tunnel cross-section is positioned at different positions, a corresponding mounting hole of section survey point, between the line at section survey point and mounting hole center and base plate, have different angles, mounting hole is set to inclined hole, makes the installation setting of laser instrument more simple.While installation due to tunnel, can there is certain skew, also can there is certain movement in the position of section survey point, therefore the installation site of laser instrument also needs to move, in laser instrument moving process, produce collision with base plate, the through hole of base plate is made as bar hole, when the first expansion plate and described the second expansion plate move, inclined hole be positioned at all the time bar hole under.
Further, tunnel cross-section measurement laying out apparatus also comprises roller bearing, and roller bearing is coupling in cavity upper and lower surface, also connects with the upper and lower surface of the first expansion plate and the second expansion plate respectively.Between the first expansion plate upper and lower surface and the second expansion plate upper and lower surface and cavity inwall, be equipped with roller bearing, when adjustable screw promotes the first expansion plate and the second expansion plate and moves, the first expansion plate and the second expansion plate are in the enterprising line slip of roller bearing, can not only ensure the moving direction of the first expansion plate and the second expansion plate, more laborsaving while also making to move.
Further, roller bearing axial line and cavity axis are perpendicular.The first expansion plate and the second expansion plate are moved along cavity axis, make in the time regulating the collapsing length of the first expansion plate and the second expansion plate, more convenient.
Further, tunnel cross-section measurement laying out apparatus also comprises level meter, and level meter is located at plate upper surface.In upper base surface, level meter is set, ensures that base plate is positioned at the surface level at section two places crossing with rail level line, make tunnel cross-section measurement point laying out apparatus install more precisely, further improve the precision of tunnel cross-section measurement point laying out apparatus.
Further, one end upper surface that the first expansion plate and the second expansion plate stretch out described cavity is provided with scale mark.By scale mark, determine the displacement of the first expansion plate and the second expansion plate, make in the time adjusting the installation length of tunnel cross-section measurement point laying out apparatus, more convenient.
The present invention also provides a kind of tunnel cross-section measurement setting out method, comprises the following steps:
Using two crossing with rail level line of section as setting-out reference point, and set up coordinate using the center of setting-out reference point place straight line as round dot, calculate the coordinate position of required section survey point;
Make tunnel cross-section measurement point laying out apparatus: the length of base plate is h, and the distance of theoretical setting-out reference point is H, and tunnel cross-section maximum offset is upwards a, the radius R of tunnel cross-section, and meet following relation:
a corresponding laser instrument of section survey point, the setting angle of laser instrument is α, and the coordinate of laser instrument installation site is (x, 0), and the coordinate of section survey point is (X, Y),
the length of through hole is L, and the diameter of mounting hole is d, and meets following relation:
Calculate the vertical side-play amount of tunnel cross-section, and calculate the distance of actual setting-out reference point;
Adjust the length that the first expansion plate and the second expansion plate stretch out described cavity, the length that the first expansion plate and the second expansion plate stretch out described cavity is d, and the distance of actual setting-out reference point is D, and meets following relation: D=h+2d;
Tunnel cross-section measurement point laying out apparatus is installed on tunnel cross-section and horizontal positioned, the first expansion plate and the second expansion plate and tunnel cross-section against 2 be actual setting-out reference point, laser instrument and actual setting-out reference point are located along the same line;
Open laser instrument, the laser spots that is projected to tunnel cross-section is the layout point position of section survey point.
Below technical scheme is further illustrated:
Further, before opening laser instrument, base plate is carried out to leveling, by level meter is set on base plate, adjust the horizontality of base plate.
Further, when opening laser instrument and carrying out setting-out, the horizontality of moment monitoring base plate.
Compared with prior art, the present invention has following beneficial effect:
Install before tunnel cross-section measurement point laying out apparatus, according to the physical length of crossing with rail level line 2 of section, adjust the installation length of tunnel cross-section measurement point laying out apparatus by adjusting bolt, one end that the first expansion plate and the second expansion plate stretch out bottom cavity is provided with scale mark, by scale mark, determine the displacement of the first expansion plate and the second expansion plate; The surface level of tunnel cross-section measurement being put to laying out apparatus and is arranged on section two places crossing with rail level line, carries out leveling by the level meter on base plate; After leveling, open the laser instrument pre-setting, laser instrument is incident upon laser spots on tunnel and is the setting-out position of section survey point.Tunnel cross-section measurement point laying out apparatus of the present invention and utilize tunnel cross-section measurement point laying out apparatus to carry out the tunnel cross-section measurement point setting out method of setting-out, section survey can be put to disposable being marked, work efficiency is high, it is the tunnel of 6 meters by one kilometer of specification, adopting traditional level setting out method to complete setting-out needs about 18-19 days, completes setting-out and only needs 2-3 days and put laying out apparatus by tunnel cross-section measurement; The specification in general same tunnel is identical, the mutual alignment of theoretical profile measurement point is identical, a kind of tunnel of specification only need configure a tunnel cross-section measurement point laying out apparatus, adopt tunnel cross-section measurement point laying out apparatus only to need 4 personnel can realize the setting-out of section survey point, and adopt traditional level setting out method need configure 2 spirit-leveling instruments, and need 8 survey crews to measure, and therefore reduce widely manpower and materials and drop into, increase economic efficiency widely.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention tunnel cross-section measurement point laying out apparatus;
Fig. 2 is the work schematic diagram of embodiment of the present invention tunnel cross-section measurement point laying out apparatus;
Fig. 3 is the setting-out schematic diagram of embodiment of the present invention tunnel cross-section measurement point setting out method theory state;
Fig. 4 is the setting-out schematic diagram of embodiment of the present invention tunnel cross-section measurement point setting out method actual conditions.
Description of reference numerals:
100. base plate, 101. bar hole, 102. cavity, 103. level meter, 201. inclined hole, 202. adjustable screw, 203. roller bearing, 210. first expansion plates, 211. first tooth bars, 220. second expansion plates, 221. second tooth bars, 300. laser instrument, 400. tunnel cross-section, 401a, lower-left section survey point, 401b, left section survey point, 401c, upper left section survey point, 401d, top section survey point, 401e, upper right section survey point, 401f, right section survey point, 401g, bottom right section survey point, 402a, 402b. section two points crossing with rail level line, 402a ', 402b '. section and actual crossing 2 points of rail level line, 403. round dot, 403 '. actual round dot, the center of circle of 404. tunnel cross-sections, 404 '. the actual center of circle of tunnel cross-section.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated:
As shown in Figure 1, a kind of tunnel cross-section measurement point laying out apparatus comprises base plate 100, laser instrument 300, the first expansion plate 210 and the second expansion plate 220, base plate is provided with cavity 102, the first expansion plate 210 and the second expansion plate 220 are oppositely arranged, and part is sheathed in cavity 102, the first expansion plate 210, the side that the second expansion plate 220 is relative is respectively equipped with the first relative tooth bar 211 of upper and lower level, the second tooth bar 221, between the first tooth bar 211 and the second tooth bar 221, be provided with adjustable screw 202, adjustable screw 202 provides power to make the first expansion plate 210 and the second expansion plate 220 stretch out cavity 102, by rotation adjustable screw 202, the first expansion plate 210 and the second expansion plate 220 are moved simultaneously, realize the adjustment of tunnel cross-section measurement point laying out apparatus installation length.
The first expansion plate 210 and the second expansion plate 220 are equipped with multiple inclined holes 201, and the line of centres of inclined hole 201 is parallel with cavity 102 axis, and base plate 100 is provided with the bar hole 101 that is communicated with cavity 103, and laser instrument 300 is located in inclined hole 201.As shown in Figure 2, section survey point is positioned at different positions, and a corresponding inclined hole 201 of section survey point, has different angles between the line at section survey point and inclined hole 201 centers and base plate 100, mounting hole is set to inclined hole 201, makes the installation setting of laser instrument 300 more simple.As Fig. 1, shown in 2, tunnel cross-section measurement point is in the same plane, the line of centres of multiple inclined holes 201 is parallel with cavity 102 axis, when installation, by adjusting the position of tunnel cross-section measurement point laying out apparatus, make the line of centres and section two 402as crossing with rail level line of multiple inclined holes 201, the straight line at 402b place overlaps, inclined hole 201 centers and section survey point are in the same plane, make the installation setting of laser instrument 300 more simple, and improve the precision of tunnel cross-section measurement point laying out apparatus, and be convenient at different cross section regulation tunnel cross-section measurement point laying out apparatus, improve the dirigibility of tunnel cross-section measurement point laying out apparatus.
While installation due to tunnel cross-section 400, can there is certain skew, also can there is certain movement in the position of section survey point, therefore the installation site of laser instrument 300 also needs to move, in laser 300 device moving process, produce collision with base plate 100, the through hole of base plate 100 is made as bar hole 101, when the first expansion plate 210 and the second expansion plate 220 move, inclined hole 201 be positioned at all the time bar hole 101 under, when the first expansion plate 210 and the second expansion plate 220 move, laser instrument 300 stretches out bar hole 101 all the time.
In the present embodiment, section survey point also comprises the summit of tunnel cross-section 400, and laser instrument 300 corresponding to summit is set directly on base plate 100, and is positioned at the center of section two 402as crossing with rail level line, 402b place straight line.
Tunnel cross-section measurement laying out apparatus also comprises roller bearing 203, and roller bearing 203 is coupling in cavity 102 upper and lower surfaces, also connects with the upper and lower surface of the first expansion plate 210 and the second expansion plate 220 respectively, and roller bearing 203 axial lines and cavity 102 axis are perpendicular.When adjustable screw 202 promotes the first expansion plate 210 and the second expansion plate 220 and moves, the first expansion plate 210 and the second expansion plate 220 are in the enterprising line slip of roller bearing 203, can not only ensure the moving direction of the first expansion plate 210 and the second expansion plate 220, more laborsaving while also making to move, roller bearing 203 axial lines and cavity 102 axis are perpendicular, make in the time regulating the collapsing length of the first expansion plate 210 and the second expansion plate 220, more convenient.
Tunnel cross-section measurement laying out apparatus also comprises level meter 103, and level meter 103 is located at base plate 100 upper surfaces.In bottom, 100 upper surfaces arrange level meter 103, ensure that base plate 100 is positioned at the surface level at section two 402 places crossing with rail level line, make tunnel cross-section measurement point laying out apparatus install more precisely, further improve the precision of tunnel cross-section measurement point laying out apparatus.
One end upper surface that the first expansion plate 210 and the second expansion plate 220 stretch out described cavity 102 is provided with scale mark (accompanying drawing does not identify).By scale mark, determine the displacement of the first expansion plate 210 and the second expansion plate 220, make in the time adjusting the installation length of tunnel cross-section measurement point laying out apparatus, more convenient.
In the present embodiment, tunnel cross-section measurement point comprises lower-left section survey point 401a, left section survey point 401b, upper left section survey point 401c, top section survey point 401d, upper right section survey point 401e, right section survey point 401f, bottom right section survey point 401g, and the laser instrument 300 that wherein section survey point 401d in top is corresponding is set directly on base plate 100 and is positioned at the center of section two 402as crossing with rail level line, 402b place straight line; Tunnel cross-section measurement point also comprises section two 402a, 402bs crossing with rail level line, and due to section, two 402a, 402bs crossing with rail level line are datum mark, does not therefore need to arrange laser instrument and carries out setting-out.The quantity of tunnel cross-section measurement point 401 and position can arrange according to actual needs.
As shown in Figure 3, Figure 4, a kind of tunnel cross-section measurement setting out method, comprises the following steps:
As shown in Figure 3, using section two 402a, 402bs crossing with rail level line as setting-out reference point, and set up coordinate using the center of setting-out reference point place straight line as round dot 403, calculate the coordinate position of section survey point, in an embodiment, be provided with 9 section survey points, be respectively lower-left section survey point 401a, left section survey point 401b, upper left section survey point 401c, top measurement point 401d, upper right section survey point 401e, right section survey point 401f, bottom right section survey point 401g, section two 402a, 402bs crossing with rail level line;
Make tunnel cross-section measurement point laying out apparatus: the length of base plate 100 is h, and the distance of theoretical setting-out reference point is H, and tunnel cross-section 400 maximum offset is upwards a, the radius R of tunnel cross-section 400, and meet following relation:
a corresponding laser instrument 300 of section survey point, the setting angle of laser instrument 300 is α, and the coordinate of laser instrument 300 installation sites is (x, 0), and the coordinate of section survey point 401 is (X, Y),
due to section, two 402a, 402bs crossing with rail level line are datum mark, therefore do not need to arrange laser instrument and carry out setting-out; The length of through hole is L, and the diameter of mounting hole is d, and meets following relation:
Calculate the vertical side-play amount of tunnel cross-section 400, and calculate the distance of actual setting-out reference point;
Adjust the length that the first expansion plate 210 and the second expansion plate 220 stretch out cavity, the length that the first expansion plate 210 and the second expansion plate 220 stretch out cavity 102 is d, and the distance of actual setting-out reference point is D, and meets following relation: D=h+2d;
Tunnel cross-section measurement point laying out apparatus is installed on tunnel cross-section 400 and horizontal positioned, the first expansion plate 210 and the second expansion plate 220 and tunnel cross-section 400 against 2 be actual setting-out reference point, laser instrument 300 and actual setting-out benchmark are located along the same line;
Open laser instrument 300, the laser spots that is projected to tunnel cross-section 400 is the layout point position of section survey point 401.
As shown in Figure 3, in the present embodiment, the radius of tunnel cross-section is 2700mm, coordinate is set up as round dot 403 in center using section two 402as crossing with rail level line, 402b place straight line, under theory state, the coordinate in the center of circle 404 of tunnel cross-section is (0,1720), section two 402a, 402bs crossing with rail level line are as datum mark, the coordinate of 402a, 402b is respectively (2081,0), (2081,0), the distance that 402a, 402b are 2 is 4162mm, and the coordinate of cross sections measurement point as shown in the figure.The installation length of tunnel cross-section measurement point laying out apparatus is set to 4162mm, tunnel cross-section measurement point laying out apparatus is located at section two 402as crossing with rail level line, the surface level at 402b place, the first expansion plate 210 and the second expansion plate 220 are respectively against 402a, 402b, the line of centres of laser instrument 300 two 402as crossing with section and rail level line, 402b is on same straight line, a corresponding laser instrument 300 of section survey point, as shown in Figure 3, the distance that section survey point 401a corresponding laser instrument 300 in lower-left is offset round dot 403 is 700mm, the distance that the corresponding laser instrument 300 of left section survey point 401b is offset round dot 403 is 500mm, the distance that section survey point 401c corresponding laser instrument 300 in upper left is offset round dot 403 is 300mm, measurement point 401d corresponding laser instrument 300 in top is arranged on round dot 403 positions, the distance that section survey point 401e corresponding laser instrument 300 in upper right is offset round dot 403 is 300mm, the distance that the corresponding laser instrument 300 of right section survey point 401f is offset round dot 403 is 500mm, the distance that section survey point 401g corresponding laser instrument 300 in bottom right is offset round dot 403 is 700mm, by gross data as shown in Figure 3, the setting angle of each laser instrument is set.
As shown in Figure 4, in the present embodiment, actual tunnel section is vertical skew 30mm downwards, coordinate is set up as round dot 403 ' in center using actual crossing 2 402a ' of section and rail level line, 402b ' place straight line, the coordinate in the actual center of circle 404 ' of tunnel cross-section is (0,1690), section and rail level line actual crossing 2 402a ', 402b ' are as actual measurement reference point, the coordinate of 402a ', 402b ' is respectively (2105,0), (2105,0), the distance of 2 of 402a ', 402b ' is 4210mm.Adjust the first expansion plate 210 and second expansion plate 220 of tunnel cross-section measurement point laying out apparatus both sides, laser instrument 300 is along with the first expansion plate 210 and the second expansion plate 220 outwards move, the first expansion plate 210 and the second expansion plate 220 outside mobile 24mm respectively, the installation length that makes tunnel cross-section measurement point laying out apparatus is 4210mm, tunnel cross-section measurement is put to laying out apparatus and be installed on section and actual crossing 2 402a ' of rail level line, the surface level at 402b ' place, adjust the position of tunnel cross-section measurement point laying out apparatus, make the line of centres and section and actual crossing 2 402a ' of rail level line of laser instrument 300, 402b ' is on same straight line, as shown in Figure 4, the distance that section survey point 401a corresponding laser instrument 300 in lower-left is offset round dot 403 ' is 724mm, the distance that the corresponding laser instrument 300 of left section survey point 401b is offset round dot 403 ' is 524mm, the distance that section survey point 401c corresponding laser instrument 300 in upper left is offset round dot 403 ' is 324mm, measurement point 401d corresponding laser instrument 300 in top is arranged on round dot 403 ' position, the distance that section survey point 401e corresponding laser instrument 300 in upper right is offset round dot 403 ' is 324mm, the distance that the corresponding laser instrument 300 of right section survey point 401f is offset round dot 403 ' is 524mm, the distance that section survey point 401g corresponding laser instrument 300 in bottom right is offset round dot 403 ' is 724mm, before opening laser instrument 300, base plate 100 is carried out to leveling, by level meter 103 is set on base plate 100, adjust the horizontality of base plate 100, open laser instrument 300, the laser spots that is projected to tunnel cross-section 400 is the layout point position of section survey point 401, when opening laser instrument 300 and carrying out setting-out, the horizontality of moment monitoring base plate 100.
In the present embodiment, the maximum vertical side-play amount of tunnel cross-section 400 is 100mm, when tunnel cross-section 400 is upwards when vertical side-play amount 100mm, section is 3988mm with the distance of rail level line actual crossing 2 402a ', 402b ', therefore in the time making tunnel cross-section measurement point laying out apparatus, the length of base plate 100 is h, and meets following relation: h≤3988mm; In like manner, when tunnel cross-section 400 is upwards when vertical side-play amount 100mm, section is 4319mm with the distance of rail level line actual crossing 2 402a ', 402b ', therefore in the time making tunnel cross-section measurement point laying out apparatus, the first expansion plate 210 and the second expansion plate 220 stretch out the minimum length d of cavity 102, and meet following d=(4319-h)/2.
Install before tunnel cross-section measurement point laying out apparatus, according to the physical length of section two 402a, 402bs crossing with rail level line, adjust the installation length of tunnel cross-section measurement point laying out apparatus by adjustable screw 202, one end that the first expansion plate 210 and the second expansion plate 220 stretch out base plate 100 cavities 102 is provided with scale mark, by scale mark, determine the displacement of the first expansion plate 210 and the second expansion plate 220; The surface level of tunnel cross-section measurement being put to laying out apparatus and is arranged on section two 402as crossing with rail level line, 402b place, carries out leveling by the level meter 103 on base plate 100; After leveling, open the laser instrument 300 pre-setting, laser instrument 300 is incident upon laser spots on tunnel cross-section 400 and is the setting-out position of section survey point.Tunnel cross-section measurement point laying out apparatus of the present invention and utilize tunnel cross-section measurement point laying out apparatus to carry out the tunnel cross-section measurement point setting out method of setting-out, section survey can be put to disposable being marked, work efficiency is high, it is the tunnel of 6 meters by one kilometer of specification, adopting traditional level setting out method to complete setting-out needs about 18-19 days, completes setting-out and only needs 2-3 days and put laying out apparatus by tunnel cross-section measurement; The specification in general same tunnel is identical, the mutual alignment of theoretical profile measurement point is identical, a kind of tunnel of specification only need configure a tunnel cross-section measurement point laying out apparatus, adopt tunnel cross-section measurement point laying out apparatus only to need 4 personnel can realize the setting-out of section survey point, and adopt traditional level setting out method need configure 2 spirit-leveling instruments, and need 8 survey crews to measure, and therefore reduce widely manpower and materials and drop into, increase economic efficiency widely.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a tunnel cross-section measurement point laying out apparatus, it is characterized in that, comprise base plate, laser, the first expansion plate, the second expansion plate, described base plate is provided with cavity, described the first expansion plate and described the second expansion plate are oppositely arranged, and part is sheathed in described cavity, described the first expansion plate, the side that described the second expansion plate is relative is respectively equipped with intermeshing the first tooth bar, the second tooth bar, between described the first tooth bar and described the second tooth bar, be provided with adjustable screw, described adjustable screw provides power to make described the first expansion plate and described the second expansion plate stretch out described cavity, described the first expansion plate and described the second expansion plate are equipped with multiple mounting holes, described base plate is provided with the through hole that is communicated with described cavity, described laser is located in described mounting hole, when described the first expansion plate and described the second expansion plate move, described laser is stretched out described through hole all the time.
2. tunnel cross-section measurement point laying out apparatus according to claim 1, is characterized in that, the line of centres of multiple described mounting holes is parallel with described cavity axis.
3. tunnel cross-section measurement point laying out apparatus according to claim 1 and 2, it is characterized in that, described mounting hole is inclined hole, and described through hole is bar hole, when described the first expansion plate and described the second expansion plate move, described inclined hole is positioned under described bar hole all the time.
4. tunnel cross-section measurement point laying out apparatus according to claim 1, is characterized in that, also comprises roller bearing, and described roller bearing is coupling in described cavity upper and lower surface, also connects with the upper and lower surface of described the first expansion plate and described the second expansion plate respectively.
5. tunnel cross-section measurement point laying out apparatus according to claim 4, is characterized in that, described roller bearing axial line and described cavity axis are perpendicular.
6. tunnel cross-section measurement point laying out apparatus according to claim 1, is characterized in that, also comprises level meter, and described level meter is located at described plate upper surface.
7. tunnel cross-section measurement point laying out apparatus according to claim 1, is characterized in that, one end upper surface that described the first expansion plate and described the second expansion plate stretch out described cavity is provided with scale mark.
8. a tunnel cross-section measurement point setting out method, is characterized in that, comprises the following steps:
Using two crossing with rail level line of section as setting-out reference point, and set up coordinate using the center of setting-out reference point place straight line as round dot, calculate the coordinate position of required section survey point;
Make the tunnel cross-section measurement point laying out apparatus as described in claim 1-6 any one: the length of base plate is h, and the distance of theoretical setting-out reference point is H, and tunnel cross-section maximum offset is upwards a, the radius R of tunnel cross-section, and meet following relation:
a corresponding laser instrument of section survey point, the setting angle of laser instrument is α, and the coordinate of laser instrument installation site is (x, 0), and the coordinate of section survey point is (X, Y),
the length of described through hole is L, and the diameter of described mounting hole is d, and meets following relation:
Calculate the vertical side-play amount of tunnel cross-section, and calculate the distance of actual setting-out reference point;
Adjust the length that described the first expansion plate and the second expansion plate stretch out described cavity, the length that described the first expansion plate and the second expansion plate stretch out described cavity is d, and the distance of actual setting-out reference point is D, and meets following relation: D=h+2d;
Described tunnel cross-section measurement point laying out apparatus is installed on tunnel cross-section and horizontal positioned, the first expansion plate and the second expansion plate and tunnel cross-section against 2 be actual setting-out reference point, described laser instrument and actual setting-out reference point are located along the same line;
Open described laser instrument, the laser spots that is projected to tunnel cross-section is the layout point position of section survey point.
9. tunnel cross-section measurement method according to claim 8, is characterized in that, before opening laser instrument, base plate is carried out to leveling, by level meter is set on base plate, adjusts the horizontality of bottom.
10. tunnel cross-section measurement method according to claim 8, is characterized in that, when opening laser instrument and carrying out setting-out, and the horizontality of moment monitoring base plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361485.7A CN104132644B (en) | 2014-07-25 | 2014-07-25 | Tunnel cross-section measurement point laying out apparatus and tunnel cross-section measurement point setting out method |
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| CN201410361485.7A CN104132644B (en) | 2014-07-25 | 2014-07-25 | Tunnel cross-section measurement point laying out apparatus and tunnel cross-section measurement point setting out method |
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| CN104132644A true CN104132644A (en) | 2014-11-05 |
| CN104132644B CN104132644B (en) | 2016-08-24 |
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| CN201410361485.7A Active CN104132644B (en) | 2014-07-25 | 2014-07-25 | Tunnel cross-section measurement point laying out apparatus and tunnel cross-section measurement point setting out method |
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| CN (1) | CN104132644B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105004270A (en) * | 2015-08-05 | 2015-10-28 | 云南省公路科学技术研究院 | Tunnel lining section laser detector |
| CN106949886A (en) * | 2017-04-28 | 2017-07-14 | 中国电建集团铁路建设有限公司 | The fast-positioning device and localization method of Metro Tunnel circuit measuring point point position |
| CN110455266A (en) * | 2019-09-07 | 2019-11-15 | 中国铁建电气化局集团北方工程有限公司 | A kind of contact network in tunnel speedy lofting instrument |
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| CN1262378A (en) * | 1999-02-02 | 2000-08-09 | 上海理工大学 | Laser lofting instrument for tunnel cross-section |
| JP2001255144A (en) * | 2000-03-09 | 2001-09-21 | Technical Syst:Kk | Measuring apparatus for inside shape of tunnel |
| CN101685012A (en) * | 2008-09-27 | 2010-03-31 | 上海市机械施工有限公司 | Measuring and calculating method of subway tunnel section |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105004270A (en) * | 2015-08-05 | 2015-10-28 | 云南省公路科学技术研究院 | Tunnel lining section laser detector |
| CN106949886A (en) * | 2017-04-28 | 2017-07-14 | 中国电建集团铁路建设有限公司 | The fast-positioning device and localization method of Metro Tunnel circuit measuring point point position |
| CN106949886B (en) * | 2017-04-28 | 2023-10-27 | 中国电建集团铁路建设有限公司 | Rapid positioning device and positioning method for subway tunnel engineering line measuring point positions |
| CN110455266A (en) * | 2019-09-07 | 2019-11-15 | 中国铁建电气化局集团北方工程有限公司 | A kind of contact network in tunnel speedy lofting instrument |
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| CN104132644B (en) | 2016-08-24 |
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