CN111021253A - Construction method for automatically positioning tunnel anchor anchoring system based on APP system and total station - Google Patents
Construction method for automatically positioning tunnel anchor anchoring system based on APP system and total station Download PDFInfo
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Abstract
The invention discloses a construction method of an automatic positioning tunnel anchor anchoring system based on an APP (application) system and a total station, which is characterized in that a strand embedded pipe fine adjustment device is installed at the center position of a strand embedded pipe lofted on a positioning support, the strand embedded pipe is preliminarily positioned, the total station is matched with a mobile phone APP system, a strand embedded pipe axis positioning device is installed to a pipe orifice, the strand embedded pipe is finely adjusted, then the strand embedded pipe is subjected to linear inspection, and the strand embedded pipe is fixed after the inspection is qualified. The invention improves the installation precision of the cable strand embedded pipe, the front anchor backing plate and the rear anchor backing plate and reduces the difficulty of three-dimensional space coordinate calculation and measurement positioning. According to the invention, the construction measurement time is greatly reduced, the measurement efficiency is improved, the site positioning measurement work is automatically and intelligently carried out in a mode of connecting the mobile phone Bluetooth with the total station Bluetooth, errors caused by manual input of measured data and manual calculation are avoided, and a large amount of manpower and material resources are saved.
Description
Technical Field
The invention relates to the field of bridge engineering construction, in particular to a construction method for automatically positioning a tunnel anchor anchoring system based on an APP system and a total station.
Background
In the existing construction technology, more and more large bridges are used, especially, tunnel type anchors are basically adopted in the design of suspension bridge anchors in mountainous areas, the tunnel type anchors of main cables of the suspension bridge are used as main stress structures of the main cables of the suspension bridge, and the positioning of an anchoring system of the tunnel anchors is of great importance. The anchoring system has higher installation accuracy requirement and plays an important role in the stress of the structure. At present, the combination of a total station, a calculator and an Excel form is mostly adopted for field measurement, because an anchoring system adopts three-dimensional coordinates for direct positioning, repeated measurement operation is needed, and the calculator and the Excel form have the defect of input error, thereby causing unnecessary errors in measurement; moreover, the anchoring system using the traditional positioning method has huge calculation amount, which causes the phenomenon of calculator stuck, and has extremely low efficiency and poor control precision.
Disclosure of Invention
The invention aims to provide a construction method for automatically positioning a tunnel anchor anchoring system based on an APP system and a total station.
The purpose of the invention is realized as follows:
a construction method for automatically positioning a tunnel anchor anchoring system based on an APP system and a total station is characterized in that: the method comprises the following specific steps:
A. and (3) rechecking the space between the embedded pipes of the cable strands and calculating the center coordinates:
rechecking the space between the cable strand embedded pipes according to a design drawing, and calculating the center coordinates of any length of each cable channel pipe and the cross line coordinates of each anchor backing plate after rechecking is correct;
B. establishing a three-dimensional model, and rechecking design coordinates:
drawing a tunnel type anchorage 1 in CAD software: 1, a three-dimensional model, namely, unfolding the calculated center coordinates of the embedded pipe and the coordinates of the cross line of the anchor backing plate into a CAD three-dimensional model, and rechecking the design coordinates; after rechecking, inputting data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections into an APP (application) system of the mobile phone, and automatically calculating the center coordinates of the pre-embedded pipes of the cable strands in any length by the APP system according to the data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections;
C. primarily positioning the rear anchor backing plate;
connecting a mobile phone APP system with a total station through Bluetooth, lofting a central point of a cable strand embedded pipe on an adjusted rear anchor surface template by utilizing an embedded pipe positioning function in the mobile phone APP system, popping out a cross line by utilizing an ink fountain according to the central position of the cable strand embedded pipe, and finally primarily installing a notch template and a rear anchor backing plate according to the design size of each notch template;
D. designing and manufacturing a cable strand embedded pipe axis positioning device:
the strand embedded pipe axis positioning device is used for being matched with a total station to measure three-dimensional coordinates of center points of a front anchor backing plate, a rear anchor backing plate and a strand embedded pipe, comprises an integral frame, a Leica small prism and a high-sensitivity horizontal leveling structure, is placed at a pipe orifice of the strand embedded pipe, measures the Leica small prisms on the left side and the right side and takes an average value, and can measure the center coordinates of the strand embedded pipe;
E. and (3) accurately positioning the rear anchor backing plate:
erecting a total station at a control point, accurately lofting the position of a cross line of each rear anchor backing plate by a polar coordinate method, installing a cable strand embedded pipe shaft center positioning device at the pipe orifice of the rear anchor backing plate after positioning is finished, checking the center position of the rear anchor backing plate, and checking whether the upper angle of the rear anchor backing plate meets the requirement by using a slope ruler; carrying out plane inspection on the rear anchor backing plate through an anchor backing plate positioning function in mobile phone APP software, and inspecting whether the plane of the rear anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe; if the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe, performing the next step of work, if the plane of the rear anchor backing plate is not vertical to the axis of the strand embedded pipe, readjusting the rear anchor backing plate until the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe;
F. lofting a positioning support:
the center point of the support leg of the positioning support is released on the bottom plate of the primary support of the tunnel anchor, and the distance from the cross section where the positioning support is located to an IP point (the intersection point of the central lines of the main cables in the cable-scattering saddle) is released on the primary support of the tunnel anchor through the positioning support releasing function in the mobile phone APP software; when the positioning support is used, the positioning support is erected through a point on the primary support of the tunnel anchor, and is assisted by a slope ruler, so that the plane where the cross line of the positioning support is located is perpendicular to the central line of the main cable, and the position conflict between the positioning support and the position of the cable strand embedded pipe is prevented; the main truss of the positioning support is mainly used for supporting and preliminarily positioning the strand embedded pipe of the tunnel anchorage, the actual position and the verticality of the positioning support are checked before the central line of the strand embedded pipe is lofted on the positioning support, and then the vertical central line of the center of the strand embedded pipe is lofted according to the actual position of the positioning support: left, center, right and transverse center lines: the center lines of the rest of the strand embedded pipes are marked on the positioning bracket in an interpolation mode on site according to the design intervals of the strand embedded pipes, and a strand embedded pipe fine-tuning device is installed according to the marked center lines of the strand embedded pipes;
G. and (3) observing the deformation of the positioning support, and correcting the three-dimensional coordinates of the cable strand embedded pipe:
arranging deformation observation points at the top end of a positioning support at the pipe orifice of the strand embedded pipe and the top end of the positioning support at the pipe tail of the strand embedded pipe, wherein 18 deformation observation points are distributed on each surface, and the result of the deformation observation points is mainly used as the deformation correction basis of the strand embedded pipe; continuously observing all the deformation observation points at each time interval, measuring an observation value in an initial state, calculating the displacement of the deformation observation points, correcting the coordinates of any point on the rear anchor backing plate and the central coordinates of the strand embedded pipe, and ensuring that the strand embedded pipe is installed to the correct position;
H. preliminary positioning of the cable strand embedded pipe:
preliminarily positioning the strand embedded pipes by adopting a strand embedded pipe fine adjustment device according to the design distance between the strand embedded pipes, and checking the strand embedded pipes on the same positioning support by using the measuring tape distance;
I. accurately positioning the straight embedded pipe:
the line type of the tunnel anchor cable strand embedded pipe is a space curve, consists of a space straight line and a space circular curve, and is divided into a straight embedded pipe and a wire dividing pipe; when the strand embedded pipes are accurately positioned, the straight embedded pipes are positioned first, and the branch pipes are accurately positioned after all the straight embedded pipes are positioned; installing the cable strand embedded pipe axis positioning device at the pipe orifice of the straight embedded pipe, connecting the total station with the mobile phone APP system through Bluetooth, and accurately adjusting the straight embedded pipe by utilizing the embedded pipe positioning function in the mobile phone APP system and the automatic collimation and tracking measurement function of the total station until the central coordinate of the straight embedded pipe meets the design requirement;
J. line type checking:
performing line type checking on the straight embedded pipe after accurate positioning, installing a strand embedded pipe axis positioning device at 1/5, 2/5, 3/5 and 4/5 of the straight embedded pipe, leveling a horizontal pipe on the strand embedded pipe axis positioning device, connecting a total station with a mobile phone APP system through Bluetooth, measuring coordinates of a small Leeka prism on a cross bar of the strand embedded pipe axis positioning device by using the total station, inputting the measured coordinates into an embedded pipe positioning function of the mobile phone APP system to check whether the line type of the strand embedded pipe meets the requirement, and if the accuracy does not meet the requirement, performing measurement adjustment again until the accuracy meets the requirement;
K. fine adjustment of the fiber separating tube:
installing the cable strand embedded pipe axis positioning device to the pipe orifice of the filament separating pipe, adjusting the pipe orifice to a design coordinate, and then simply fixing; moving the cable strand embedded pipe axis positioning device to the middle position of the wire dividing pipe to adjust the linearity of the wire dividing pipe, wherein the wire dividing pipe consists of a space curve and a space straight line, the linearity adjustment of the wire dividing pipe is ensured to be a designed position, the center coordinate of the pipe orifice of the wire dividing pipe is adjusted again after the linearity adjustment of the wire dividing pipe is finished, the position of a cross line of the pipe orifice of the wire dividing pipe is checked after the adjustment is finished, whether the requirements are met is judged, if the requirements are met, the cable strand embedded pipe axis positioning device can be fixed, and if the requirements are not met, the cable strand embedded pipe axis positioning device needs to be adjusted;
l, accurately positioning a front anchor backing plate:
after the front anchor backing plate is connected with the positioned split-thread pipe, an upper opening of the front anchor backing plate is adjusted to a design angle by a slope ruler, then a mobile phone APP system is connected with a total station, the cross line coordinate of the front anchor backing plate is actually measured by the total station, whether the cross line position of the front anchor backing plate meets the design requirement or not is checked through the anchor backing plate fine adjustment function of the mobile phone APP system, if the design requirement is met, the front anchor backing plate can be fixed, and if the design requirement is not met, the front anchor backing plate needs to be adjusted again until the design requirement is met; before the front anchor backing plate is fixed, the plane of the front anchor backing plate is checked, whether the plane of the front anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe is checked, and if the plane of the front anchor backing plate is not vertical, the plane of the front anchor backing plate needs to be adjusted again;
m, completion acceptance:
after the construction of tunnel anchor filled concrete is accomplished, erect the total powerstation at entrance to a cave control point, be connected cell-phone APP system and total powerstation through the bluetooth, through the tracking measurement of total powerstation and the plane of place of automatic collimation function actual measurement front anchor backing plate, utilize the front anchor backing plate that the accurate adjustment function in the cell-phone APP system was accomplished to the accurate positioning to check and accept, and check the interval of front anchor backing plate through the mode of chi volume.
The process of rechecking the space between the cable strand embedded pipes and calculating the center coordinate in the step A is as follows: the method comprises the steps of firstly calculating the size between the strand embedded pipes at any position according to the size between the strand embedded pipes of the front anchor surface and the rear anchor surface, and then calculating the center coordinate of any position of each strand embedded pipe by using at least two methods of a geometric method, a coordinate forward calculation method and three-dimensional coordinate conversion.
The line type checking principle described in step J is as follows: checking the line type of the cable strand embedded pipe by using the distance from the space point to the line;
the principle of the plane inspection of the front anchor backing plate and the rear anchor backing plate in the step E, L, M is as follows: and calculating the projection distances of any real measuring point to the front anchor point and the rear anchor point on the normal vector by using the forms of the space plane and the normal vector of the space plane, and judging whether the plane of the front anchor backing plate and the plane of the rear anchor backing plate are vertical to the axis of the cable strand embedded pipe or not by using the projection distances of the real measuring point to the front anchor point and the rear anchor point on the normal vector.
The construction method of the automatic positioning tunnel anchor anchoring system based on the APP software and the total station is characterized in that: the anchor system coordinate calculation is all solved by cell-phone APP system is automatic, and the mode that the fine tuning process is all connected cell-phone APP system and total powerstation through the bluetooth, utilizes the automatic function of alighting of total powerstation automation, intelligent completion.
The function that cell-phone APP system contained has newly-built project, section key element input, principal point key element input, cableway pipe key element input, bluetooth setting, coordinate calculation, coordinate batch calculation, tunnel anchor headroom inspection, locating support lofting, the pre-buried pipe location of strand and anchor backing plate location, and this cell-phone APP system is connected through bluetooth and total powerstation, realizes data real-time transmission.
Step D the pre-buried tubular axle center positioner of strand, including whole frame, come card little prism, high sensitivity level levelling structure, wherein: the Jiong-shaped integral frame consists of a left vertical slide way with scales in the left vertical direction, a right vertical slide way with scales in the right vertical direction and a transverse slide way with scales in the transverse direction, wherein a slide block is respectively arranged on the left vertical slide way and the right vertical slide way, a slide block is respectively arranged on the left side and the right side of the transverse slide way, and the left vertical slide way and the right vertical slide way are respectively fixed on the inner sides of the left slide block and the right slide block on the transverse slide way to form the integral frame; fixing two Leica small prisms at the middle points of the sliding blocks on the left vertical slideway and the right vertical slideway respectively, and fixing one Leica small prism at the middle point of the transverse slideway; the high-sensitivity horizontal leveling structure is two high-sensitivity horizontal air bubbles, and the two high-sensitivity horizontal air bubbles are fixed at two ends of the transverse slideway.
The left vertical slideway, the right vertical slideway and the transverse slideway are all made of aluminum alloy, the combined width of the left vertical slideway, the right vertical slideway, the transverse slideway and the sliding block is 60mm, the height of the left vertical slideway, the right vertical slideway, the transverse slideway and the sliding block is 30mm, and the length of the transverse slideway is 600 mm; the lengths of the left vertical slideway and the right vertical slideway are both 400 mm.
The horizontal slide groove scribed lines with the scales are divided from the middle to two sides, the precision is 0.5mm, and the left vertical slide groove scribed lines and the right vertical slide groove scribed lines with the scales are divided from top to bottom after half of the height of the slide block is removed, and the precision is 0.5 mm.
Step H the accurate adjustment device of the cable strand embedded pipe, which comprises an integral frame, an accurate adjustment structure and a fixed structure, wherein: the U-shaped integral frame consists of a left vertical frame, a right vertical frame and a transverse frame, the fine adjustment structure consists of a screw and a nut, the fixing structure consists of a crescent plate and a positioning distribution beam, the cable embedded pipe to be measured is placed in the integral frame, a positioning hole is formed in the middle of the transverse frame and at the position corresponding to the left vertical frame and the right vertical frame, a set of fine adjustment structure is installed on each positioning hole, and the screw penetrates through the positioning holes from outside to inside and then is screwed into the nut, so that the screw is installed on the integral frame; the riser of horizontal frame is fixed on the lateral wall of location distribution roof beam, and the upper portion of crescent moon board is the semicircle of diameter with the external diameter of the pre-buried pipe of strand, and the lower part of crescent moon board is the flat mouthful, welds the crescent moon board lower part on the location distribution roof beam of the pre-buried pipe below of strand after the pre-buried pipe adjustment of strand is accomplished to with the semicircle part of crescent moon board and the pre-buried pipe welding of strand.
The integral frame is made of angle steel, and the specification of the angle steel is ∠ 75 multiplied by 8 multiplied by 640.
The specification of the screw is M20, L =220mm, and the nut is the standard nut of M20.
The crescent plate is a steel plate with the thickness of 10 mm.
The invention provides a construction method for automatically positioning a tunnel anchor anchoring system based on an APP system and a total station, which is based on a mobile phone APP system, the construction method is simple in operation, a strand embedded pipe axis positioning device is simple in structure, a strand embedded pipe fine adjustment device is installed at the center position of a strand embedded pipe which is lofted on a positioning support to initially position the strand embedded pipe, the total station with tracking measurement and automatic alignment functions is adopted and matched with the mobile phone APP system, the strand embedded pipe axis positioning device is installed to a pipe opening to perform fine adjustment on the strand embedded pipe, after the fine adjustment is completed, the strand embedded pipe axis positioning device is installed to positions 1/5, 2/5, 3/5 and 4/5 of the strand embedded pipe to perform linear inspection on the strand embedded pipe, and the strand embedded pipe is fixed after the inspection is qualified. The invention improves the installation precision of the cable strand embedded pipe, the front anchor backing plate and the rear anchor backing plate and reduces the difficulty of three-dimensional space coordinate calculation and measurement positioning. According to the invention, the construction measurement time is greatly reduced, the measurement efficiency is improved, the site positioning measurement work is automatically and intelligently carried out in a mode of connecting the mobile phone Bluetooth with the total station Bluetooth, errors caused by manual input of measured data and manual calculation are avoided, a large amount of manpower and material resources are saved, and the method has popularization value.
Drawings
FIG. 1 is a schematic structural diagram of a tunnel anchor cable strand embedded pipe fine adjustment device;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is a schematic structural view of a crescent moon plate and a positioning distribution beam;
FIG. 5 is a schematic structural view of a device for positioning the axis of a cable strand embedded pipe;
FIG. 6 is a schematic view showing a state of use of the tunnel anchor cable strand embedded pipe fine adjustment device and the strand embedded pipe axial positioning device;
FIG. 7 is a flow chart of the construction method of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
Referring to fig. 7, the construction method for automatically positioning the tunnel anchor anchoring system based on the APP system and the total station provided by the invention specifically includes the following steps:
A. and (3) rechecking the space between the embedded pipes of the cable strands and calculating the center coordinates:
rechecking the space between the cable strand embedded pipes according to a design drawing, and calculating the center coordinates of any length of each cable channel pipe and the cross line coordinates of each anchor backing plate after rechecking is correct;
B. establishing a three-dimensional model, and rechecking design coordinates:
drawing a tunnel type anchorage 1 in CAD software: 1, a three-dimensional model, namely, unfolding the calculated center coordinates of the embedded pipe and the coordinates of the cross line of the anchor backing plate into a CAD three-dimensional model, and rechecking the design coordinates; after rechecking, inputting data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections into an APP (application) system of the mobile phone, and automatically calculating the center coordinates of the pre-embedded pipes of the cable strands in any length by the APP system according to the data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections;
C. primarily positioning the rear anchor backing plate;
connecting a mobile phone APP system with a total station through Bluetooth, lofting a central point of a cable strand embedded pipe on an adjusted rear anchor surface template by utilizing an embedded pipe positioning function in the mobile phone APP system, popping out a cross line by utilizing an ink fountain according to the central position of the cable strand embedded pipe, and finally primarily installing a notch template and a rear anchor backing plate according to the design size of each notch template;
D. designing and manufacturing a cable strand embedded pipe axis positioning device:
the strand embedded pipe axis positioning device is used for being matched with a total station to measure three-dimensional coordinates of center points of a front anchor backing plate, a rear anchor backing plate and a strand embedded pipe, comprises an integral frame, a Leica small prism and a high-sensitivity horizontal leveling structure, is placed at a pipe orifice of the strand embedded pipe, measures the Leica small prisms on the left side and the right side and takes an average value, and can measure the center coordinates of the strand embedded pipe;
E. and (3) accurately positioning the rear anchor backing plate:
erecting a total station at a control point, accurately lofting the position of a cross line of each rear anchor backing plate by a polar coordinate method, installing a cable strand embedded pipe shaft center positioning device at the pipe orifice of the rear anchor backing plate after positioning is finished, checking the center position of the rear anchor backing plate, and checking whether the upper angle of the rear anchor backing plate meets the requirement by using a slope ruler; carrying out plane inspection on the rear anchor backing plate through an anchor backing plate positioning function in mobile phone APP software, and inspecting whether the plane of the rear anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe; if the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe, performing the next step of work, if the plane of the rear anchor backing plate is not vertical to the axis of the strand embedded pipe, readjusting the rear anchor backing plate until the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe;
F. lofting a positioning support:
the center point of the support leg of the positioning support is released on the bottom plate of the primary support of the tunnel anchor, and the distance from the cross section where the positioning support is located to an IP point (the intersection point of the central lines of the main cables in the cable-scattering saddle) is released on the primary support of the tunnel anchor through the positioning support releasing function in the mobile phone APP software; when the positioning support is used, the positioning support is erected through a point on the primary support of the tunnel anchor, and is assisted by a slope ruler, so that the plane where the cross line of the positioning support is located is perpendicular to the central line of the main cable, and the position conflict between the positioning support and the position of the cable strand embedded pipe is prevented; the main truss of the positioning support is mainly used for supporting and preliminarily positioning the strand embedded pipe of the tunnel anchorage, the actual position and the verticality of the positioning support are checked before the central line of the strand embedded pipe is lofted on the positioning support, and then the vertical central line of the center of the strand embedded pipe is lofted according to the actual position of the positioning support: left, center, right and transverse center lines: the center lines of the rest of the strand embedded pipes are marked on the positioning bracket in an interpolation mode on site according to the design intervals of the strand embedded pipes, and a strand embedded pipe fine-tuning device is installed according to the marked center lines of the strand embedded pipes;
G. and (3) observing the deformation of the positioning support, and correcting the three-dimensional coordinates of the cable strand embedded pipe:
arranging deformation observation points at the top end of a positioning support at the pipe orifice of the strand embedded pipe and the top end of the positioning support at the pipe tail of the strand embedded pipe, wherein 18 deformation observation points are distributed on each surface, and the result of the deformation observation points is mainly used as the deformation correction basis of the strand embedded pipe; continuously observing all the deformation observation points at each time interval, measuring an observation value in an initial state, calculating the displacement of the deformation observation points, correcting the coordinates of any point on the rear anchor backing plate and the central coordinates of the strand embedded pipe, and ensuring that the strand embedded pipe is installed to the correct position;
H. preliminary positioning of the cable strand embedded pipe:
preliminarily positioning the strand embedded pipes by adopting a strand embedded pipe fine adjustment device according to the design distance between the strand embedded pipes, and checking the strand embedded pipes on the same positioning support by using the measuring tape distance;
I. accurately positioning the straight embedded pipe:
the line type of the tunnel anchor cable strand embedded pipe is a space curve, consists of a space straight line and a space circular curve, and is divided into a straight embedded pipe and a wire dividing pipe; when the strand embedded pipes are accurately positioned, the straight embedded pipes are positioned first, and the branch pipes are accurately positioned after all the straight embedded pipes are positioned; installing the cable strand embedded pipe axis positioning device at the pipe orifice of the straight embedded pipe, connecting the total station with the mobile phone APP system through Bluetooth, and accurately adjusting the straight embedded pipe by utilizing the embedded pipe positioning function in the mobile phone APP system and the automatic collimation and tracking measurement function of the total station until the central coordinate of the straight embedded pipe meets the design requirement;
J. line type checking:
performing line type checking on the straight embedded pipe after accurate positioning, installing a strand embedded pipe axis positioning device at 1/5, 2/5, 3/5 and 4/5 of the straight embedded pipe, leveling a horizontal pipe on the strand embedded pipe axis positioning device, connecting a total station with a mobile phone APP system through Bluetooth, measuring coordinates of a small Leeka prism on a cross bar of the strand embedded pipe axis positioning device by using the total station, inputting the measured coordinates into an embedded pipe positioning function of the mobile phone APP system to check whether the line type of the strand embedded pipe meets the requirement, and if the accuracy does not meet the requirement, performing measurement adjustment again until the accuracy meets the requirement;
K. fine adjustment of the fiber separating tube:
installing the cable strand embedded pipe axis positioning device to the pipe orifice of the filament separating pipe, adjusting the pipe orifice to a design coordinate, and then simply fixing; moving the cable strand embedded pipe axis positioning device to the middle position of the wire dividing pipe to adjust the linearity of the wire dividing pipe, wherein the wire dividing pipe consists of a space curve and a space straight line, the linearity adjustment of the wire dividing pipe is ensured to be a designed position, the center coordinate of the pipe orifice of the wire dividing pipe is adjusted again after the linearity adjustment of the wire dividing pipe is finished, the position of a cross line of the pipe orifice of the wire dividing pipe is checked after the adjustment is finished, whether the requirements are met is judged, if the requirements are met, the cable strand embedded pipe axis positioning device can be fixed, and if the requirements are not met, the cable strand embedded pipe axis positioning device needs to be adjusted;
l, accurately positioning a front anchor backing plate:
after the front anchor backing plate is connected with the positioned split-thread pipe, an upper opening of the front anchor backing plate is adjusted to a design angle by a slope ruler, then a mobile phone APP system is connected with a total station, the cross line coordinate of the front anchor backing plate is actually measured by the total station, whether the cross line position of the front anchor backing plate meets the design requirement or not is checked through the anchor backing plate fine adjustment function of the mobile phone APP system, if the design requirement is met, the front anchor backing plate can be fixed, and if the design requirement is not met, the front anchor backing plate needs to be adjusted again until the design requirement is met; before the front anchor backing plate is fixed, the plane of the front anchor backing plate is checked, whether the plane of the front anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe is checked, and if the plane of the front anchor backing plate is not vertical, the plane of the front anchor backing plate needs to be adjusted again;
m, completion acceptance:
after the construction of tunnel anchor filled concrete is accomplished, erect the total powerstation at entrance to a cave control point, be connected cell-phone APP system and total powerstation through the bluetooth, through the tracking measurement of total powerstation and the plane of place of automatic collimation function actual measurement front anchor backing plate, utilize the front anchor backing plate that the accurate adjustment function in the cell-phone APP system was accomplished to the accurate positioning to check and accept, and check the interval of front anchor backing plate through the mode of chi volume.
The process of rechecking the space between the cable strand embedded pipes and calculating the center coordinate in the step A is as follows: the method comprises the steps of firstly calculating the size between the strand embedded pipes at any position according to the size between the strand embedded pipes of the front anchor surface and the rear anchor surface, and then calculating the center coordinate of any position of each strand embedded pipe by using at least two methods of a geometric method, a coordinate forward calculation method and three-dimensional coordinate conversion.
The line type checking principle described in step J is as follows: checking the line type of the cable strand embedded pipe by using the distance from the space point to the line;
the principle of the plane inspection of the front anchor backing plate and the rear anchor backing plate in the step E, L, M is as follows: and calculating the projection distances of any real measuring point to the front anchor point and the rear anchor point on the normal vector by using the forms of the space plane and the normal vector of the space plane, and judging whether the plane of the front anchor backing plate and the plane of the rear anchor backing plate are vertical to the axis of the cable strand embedded pipe or not by using the projection distances of the real measuring point to the front anchor point and the rear anchor point on the normal vector.
The construction method of the automatic positioning tunnel anchor anchoring system based on the APP software and the total station is characterized in that: the anchor system coordinate calculation is all solved by cell-phone APP system is automatic, and the mode that the fine tuning process is all connected cell-phone APP system and total powerstation through the bluetooth, utilizes the automatic function of alighting of total powerstation automation, intelligent completion.
The function that cell-phone APP system contained has newly-built project, section key element input, principal point key element input, cableway pipe key element input, bluetooth setting, coordinate calculation, coordinate batch calculation, tunnel anchor headroom inspection, locating support lofting, the pre-buried pipe location of strand and anchor backing plate location, and this cell-phone APP system is connected through bluetooth and total powerstation, realizes data real-time transmission.
Step D the pre-buried tubular axle center positioner of strand, including whole frame 5, come card little prism 6, high sensitivity level levelling structure, wherein: the Jiong-shaped integral frame 5 consists of a left vertical slideway 51 with scales in the left vertical direction, a right vertical slideway 52 with scales in the right vertical direction and a transverse slideway 53 with scales in the transverse direction, a slide block 54 is arranged on the left vertical slideway and the right vertical slideway, a slide block 54 is arranged on the transverse slideway 54 with scales, the left vertical slideway 51 and the right vertical slideway 52 are respectively fixed on the inner sides of the left slide block 54 and the right slide block 54 on the transverse slideway 53, and the integral frame 5 is formed; two Leica small prisms 6 are respectively fixed at the middle points of the slide blocks 54 on the left vertical slideway 51 and the right vertical slideway 52, and one Leica small prism 6 is fixed at the middle point of the horizontal slideway 53; the high-sensitivity horizontal leveling structure is two high-sensitivity horizontal air bubbles 7, and the two high-sensitivity horizontal air bubbles 7 are fixed at two ends of the cross slide 53.
The left vertical slideway 51, the right vertical slideway 52 and the transverse slideway 53 are all made of aluminum alloy, the combined width of the left vertical slideway 51, the right vertical slideway 52, the transverse slideway 53 and the sliding block 54 is 60mm, the height is 30mm, and the length of the transverse slideway 53 is 600 mm; the lengths of the left vertical slideway 51 and the right vertical slideway 52 are both 400 mm.
The scribed lines on the transverse slide 53 are divided from the middle to two sides, the precision is 0.5mm, and the scribed lines on the left vertical slide 51 and the right vertical slide 52 are divided from top to bottom after half of the height of the slide block 54 is removed, and the precision is 0.5 mm.
The utility model provides a tunnel anchor rope thigh buried pipe fine tuning device of circulated use, includes whole frame 1, fine tuning structure 2 and fixed knot construct 3, wherein: the U-shaped integral frame 1 is composed of a left vertical frame 11, a right vertical frame 12 and a transverse frame 13, a fine adjustment structure 2 is composed of a screw rod 21 and a screw cap 22, a fixing structure 3 is composed of a crescent plate 31 and a positioning distribution beam 32, a cable embedded pipe 4 to be measured is placed in the integral frame 1, a positioning hole 14 is formed in the middle of the transverse frame 13 and at the position corresponding to the left vertical frame 11 and the right vertical frame 12, a set of fine adjustment structure 2 is installed on each positioning hole 14, the screw rod 21 penetrates through the positioning holes 14 from outside to inside and then is screwed into the screw cap 22, the screw cap 22 is fixed on the integral frame 1, and the screw rod 21 is installed on the integral frame 1; the riser of horizontal frame 13 is fixed on the lateral wall of location distribution roof beam 32, and the upper portion of crescent moon board 31 is the semicircle that is the diameter with the external diameter of strand pre-buried pipe 4, and the lower part of crescent moon board 31 is the flat mouthful, welds the lower part of crescent moon board 31 on the location distribution roof beam 32 of strand pre-buried pipe 4 below after strand pre-buried pipe 4 adjustment is accomplished to half circle part and the welding of strand pre-buried pipe 4 with crescent moon board 31.
The integral frame 1 is made of angle steel, and the specification of the angle steel is ∠ 75 multiplied by 8 multiplied by 640.
The specification of the screw 21 is M20, L =220mm, and the nut 22 is a standard nut of M20.
The crescent plate 31 is a steel plate 10mm thick.
Claims (10)
1. A construction method for automatically positioning a tunnel anchor anchoring system based on an APP system and a total station is characterized in that: the method comprises the following specific steps:
A. and (3) rechecking the space between the embedded pipes of the cable strands and calculating the center coordinates:
rechecking the space between the cable strand embedded pipes according to a design drawing, and calculating the center coordinates of any length of each cable channel pipe and the cross line coordinates of each anchor backing plate after rechecking is correct;
B. establishing a three-dimensional model, and rechecking design coordinates:
drawing a tunnel type anchorage 1 in CAD software: 1, a three-dimensional model, namely, unfolding the calculated center coordinates of the embedded pipe and the coordinates of the cross line of the anchor backing plate into a CAD three-dimensional model, and rechecking the design coordinates; after rechecking, inputting data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections into an APP (application) system of the mobile phone, and automatically calculating the center coordinates of the pre-embedded pipes of the cable strands in any length by the APP system according to the data of the intervals of the pre-embedded pipes of the cable strands of the characteristic sections;
C. primarily positioning the rear anchor backing plate;
connecting a mobile phone APP system with a total station through Bluetooth, lofting a central point of a cable strand embedded pipe on an adjusted rear anchor surface template by utilizing an embedded pipe positioning function in the mobile phone APP system, popping out a cross line by utilizing an ink fountain according to the central position of the cable strand embedded pipe, and finally primarily installing a notch template and a rear anchor backing plate according to the design size of each notch template;
D. designing and manufacturing a cable strand embedded pipe axis positioning device:
the strand embedded pipe axis positioning device is used for being matched with a total station to measure three-dimensional coordinates of center points of a front anchor backing plate, a rear anchor backing plate and a strand embedded pipe, comprises an integral frame, a Leica small prism and a high-sensitivity horizontal leveling structure, is placed at a pipe orifice of the strand embedded pipe, measures the Leica small prisms on the left side and the right side and takes an average value, and can measure the center coordinates of the strand embedded pipe;
E. and (3) accurately positioning the rear anchor backing plate:
erecting a total station at a control point, accurately lofting the position of a cross line of each rear anchor backing plate by a polar coordinate method, installing a cable strand embedded pipe shaft center positioning device at the pipe orifice of the rear anchor backing plate after positioning is finished, checking the center position of the rear anchor backing plate, and checking whether the upper angle of the rear anchor backing plate meets the requirement by using a slope ruler; carrying out plane inspection on the rear anchor backing plate through an anchor backing plate positioning function in mobile phone APP software, and inspecting whether the plane of the rear anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe; if the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe, performing the next step of work, if the plane of the rear anchor backing plate is not vertical to the axis of the strand embedded pipe, readjusting the rear anchor backing plate until the plane of the rear anchor backing plate is vertical to the axis of the strand embedded pipe;
F. lofting a positioning support:
the center point of the support leg of the positioning support is released on the bottom plate of the primary support of the tunnel anchor, and the distance from the cross section where the positioning support is located to an IP point (the intersection point of the central lines of the main cables in the cable-scattering saddle) is released on the primary support of the tunnel anchor through the positioning support releasing function in the mobile phone APP software; when the positioning support is used, the positioning support is erected through a point on the primary support of the tunnel anchor, and is assisted by a slope ruler, so that the plane where the cross line of the positioning support is located is perpendicular to the central line of the main cable, and the position conflict between the positioning support and the position of the cable strand embedded pipe is prevented; the main truss of the positioning support is mainly used for supporting and preliminarily positioning the strand embedded pipe of the tunnel anchorage, the actual position and the verticality of the positioning support are checked before the central line of the strand embedded pipe is lofted on the positioning support, and then the vertical central line of the center of the strand embedded pipe is lofted according to the actual position of the positioning support: left, center, right and transverse center lines: the center lines of the rest of the strand embedded pipes are marked on the positioning bracket in an interpolation mode on site according to the design intervals of the strand embedded pipes, and a strand embedded pipe fine-tuning device is installed according to the marked center lines of the strand embedded pipes;
G. and (3) observing the deformation of the positioning support, and correcting the three-dimensional coordinates of the cable strand embedded pipe:
arranging deformation observation points at the top end of a positioning support at the pipe orifice of the strand embedded pipe and the top end of the positioning support at the pipe tail of the strand embedded pipe, wherein 18 deformation observation points are distributed on each surface, and the result of the deformation observation points is mainly used as the deformation correction basis of the strand embedded pipe; continuously observing all the deformation observation points at each time interval, measuring an observation value in an initial state, calculating the displacement of the deformation observation points, correcting the coordinates of any point on the rear anchor backing plate and the central coordinates of the strand embedded pipe, and ensuring that the strand embedded pipe is installed to the correct position;
H. preliminary positioning of the cable strand embedded pipe:
preliminarily positioning the strand embedded pipes by adopting a strand embedded pipe fine adjustment device according to the design distance between the strand embedded pipes, and checking the strand embedded pipes on the same positioning support by using the measuring tape distance;
I. accurately positioning the straight embedded pipe:
the line type of the tunnel anchor cable strand embedded pipe is a space curve, consists of a space straight line and a space circular curve, and is divided into a straight embedded pipe and a wire dividing pipe; when the strand embedded pipes are accurately positioned, the straight embedded pipes are positioned first, and the branch pipes are accurately positioned after all the straight embedded pipes are positioned; installing the cable strand embedded pipe axis positioning device at the pipe orifice of the straight embedded pipe, connecting the total station with the mobile phone APP system through Bluetooth, and accurately adjusting the straight embedded pipe by utilizing the embedded pipe positioning function in the mobile phone APP system and the automatic collimation and tracking measurement function of the total station until the central coordinate of the straight embedded pipe meets the design requirement;
J. line type checking:
performing line type checking on the straight embedded pipe after accurate positioning, installing a strand embedded pipe axis positioning device at 1/5, 2/5, 3/5 and 4/5 of the straight embedded pipe, leveling a horizontal pipe on the strand embedded pipe axis positioning device, connecting a total station with a mobile phone APP system through Bluetooth, measuring coordinates of a small Leeka prism on a cross bar of the strand embedded pipe axis positioning device by using the total station, inputting the measured coordinates into an embedded pipe positioning function of the mobile phone APP system to check whether the line type of the strand embedded pipe meets the requirement, and if the accuracy does not meet the requirement, performing measurement adjustment again until the accuracy meets the requirement;
K. fine adjustment of the fiber separating tube:
installing the cable strand embedded pipe axis positioning device to the pipe orifice of the filament separating pipe, adjusting the pipe orifice to a design coordinate, and then simply fixing; moving the cable strand embedded pipe axis positioning device to the middle position of the wire dividing pipe to adjust the linearity of the wire dividing pipe, wherein the wire dividing pipe consists of a space curve and a space straight line, the linearity adjustment of the wire dividing pipe is ensured to be a designed position, the center coordinate of the pipe orifice of the wire dividing pipe is adjusted again after the linearity adjustment of the wire dividing pipe is finished, the position of a cross line of the pipe orifice of the wire dividing pipe is checked after the adjustment is finished, whether the requirements are met is judged, if the requirements are met, the cable strand embedded pipe axis positioning device can be fixed, and if the requirements are not met, the cable strand embedded pipe axis positioning device needs to be adjusted;
l, accurately positioning a front anchor backing plate:
after the front anchor backing plate is connected with the positioned split-thread pipe, an upper opening of the front anchor backing plate is adjusted to a design angle by a slope ruler, then a mobile phone APP system is connected with a total station, the cross line coordinate of the front anchor backing plate is actually measured by the total station, whether the cross line position of the front anchor backing plate meets the design requirement or not is checked through the anchor backing plate fine adjustment function of the mobile phone APP system, if the design requirement is met, the front anchor backing plate can be fixed, and if the design requirement is not met, the front anchor backing plate needs to be adjusted again until the design requirement is met; before the front anchor backing plate is fixed, the plane of the front anchor backing plate is checked, whether the plane of the front anchor backing plate is vertical to the axis of the corresponding cable strand embedded pipe is checked, and if the plane of the front anchor backing plate is not vertical, the plane of the front anchor backing plate needs to be adjusted again;
m, completion acceptance:
after the construction of tunnel anchor filled concrete is accomplished, erect the total powerstation at entrance to a cave control point, be connected cell-phone APP system and total powerstation through the bluetooth, through the tracking measurement of total powerstation and the plane of place of automatic collimation function actual measurement front anchor backing plate, utilize the front anchor backing plate that the accurate adjustment function in the cell-phone APP system was accomplished to the accurate positioning to check and accept, and check the interval of front anchor backing plate through the mode of chi volume.
2. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: the process of rechecking the space between the cable strand embedded pipes and calculating the center coordinate in the step A is as follows: the method comprises the steps of firstly calculating the size between the strand embedded pipes at any position according to the size between the strand embedded pipes of the front anchor surface and the rear anchor surface, and then calculating the center coordinate of any position of each strand embedded pipe by using at least two methods of a geometric method, a coordinate forward calculation method and three-dimensional coordinate conversion.
3. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: the line type checking principle described in step J is as follows: and checking the line type of the strand embedded pipe by using the distance from the space point to the line.
4. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: the principle of the plane inspection of the front anchor backing plate and the rear anchor backing plate in the step E, L, M is as follows: and calculating the projection distances of any real measuring point to the front anchor point and the rear anchor point on the normal vector by using the forms of the space plane and the normal vector of the space plane, and judging whether the plane of the front anchor backing plate and the plane of the rear anchor backing plate are vertical to the axis of the cable strand embedded pipe or not by using the projection distances of the real measuring point to the front anchor point and the rear anchor point on the normal vector.
5. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: the anchor system coordinate calculation is all solved by cell-phone APP system is automatic, and the mode that the fine tuning process is all connected cell-phone APP system and total powerstation through the bluetooth, utilizes the automatic function of alighting of total powerstation automation, intelligent completion.
6. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: the function that cell-phone APP system contained has newly-built project, section key element input, principal point key element input, cableway pipe key element input, bluetooth setting, coordinate calculation, coordinate batch calculation, tunnel anchor headroom inspection, locating support lofting, the pre-buried pipe location of strand and anchor backing plate location, and this cell-phone APP system is connected through bluetooth and total powerstation, realizes data real-time transmission.
7. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: step D the pre-buried tubular axle center positioner of strand, including whole frame, come card little prism, high sensitivity level levelling structure, wherein: the Jiong-shaped integral frame consists of a left vertical slide way with scales in the left vertical direction, a right vertical slide way with scales in the right vertical direction and a transverse slide way with scales in the transverse direction, wherein a slide block is respectively arranged on the left vertical slide way and the right vertical slide way, a slide block is respectively arranged on the left side and the right side of the transverse slide way, and the left vertical slide way and the right vertical slide way are respectively fixed on the inner sides of the left slide block and the right slide block on the transverse slide way to form the integral frame; fixing two Leica small prisms at the middle points of the sliding blocks on the left vertical slideway and the right vertical slideway respectively, and fixing one Leica small prism at the middle point of the transverse slideway; the high-sensitivity horizontal leveling structure is two high-sensitivity horizontal air bubbles, and the two high-sensitivity horizontal air bubbles are fixed at two ends of the transverse slideway.
8. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 7, wherein: the left vertical slideway, the right vertical slideway and the transverse slideway are all made of aluminum alloy, the combined width of the left vertical slideway, the right vertical slideway, the transverse slideway and the sliding block is 60mm, the height of the left vertical slideway, the right vertical slideway, the transverse slideway and the sliding block is 30mm, and the length of the transverse slideway is 600 mm; the lengths of the left vertical slideway and the right vertical slideway are both 400 mm; the horizontal slide groove scribed lines with the scales are divided from the middle to two sides, the precision is 0.5mm, and the left vertical slide groove scribed lines and the right vertical slide groove scribed lines with the scales are divided from top to bottom after half of the height of the slide block is removed, and the precision is 0.5 mm.
9. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein: step H the accurate adjustment device of the cable strand embedded pipe, which comprises an integral frame, an accurate adjustment structure and a fixed structure, wherein: the U-shaped integral frame consists of a left vertical frame, a right vertical frame and a transverse frame, the fine adjustment structure consists of a screw and a nut, the fixing structure consists of a crescent plate and a positioning distribution beam, the cable embedded pipe to be measured is placed in the integral frame, a positioning hole is formed in the middle of the transverse frame and at the position corresponding to the left vertical frame and the right vertical frame, a set of fine adjustment structure is installed on each positioning hole, and the screw penetrates through the positioning holes from outside to inside and then is screwed into the nut, so that the screw is installed on the integral frame; the riser of horizontal frame is fixed on the lateral wall of location distribution roof beam, and the upper portion of crescent moon board is the semicircle of diameter with the external diameter of the pre-buried pipe of strand, and the lower part of crescent moon board is the flat mouthful, welds the crescent moon board lower part on the location distribution roof beam of the pre-buried pipe below of strand after the pre-buried pipe adjustment of strand is accomplished to with the semicircle part of crescent moon board and the pre-buried pipe welding of strand.
10. The construction method of the automatic positioning tunnel anchor anchoring system based on the APP system and the total station as claimed in claim 1, wherein the integral frame is made of angle steel with specification of ∠ 75 x 8 x 640, the specification of the screw is M20, L =220mm, the nut is a standard nut of M20, and the crescent plate is a steel plate with thickness of 10 mm.
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| CN114703759A (en) * | 2022-04-29 | 2022-07-05 | 中交二航局第四工程有限公司 | Spatial positioning method for front end part of anchor rod of suspension bridge section steel anchoring system |
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