CN114990993A - High-precision positioning device and positioning method for inclined anchor rod group - Google Patents
High-precision positioning device and positioning method for inclined anchor rod group Download PDFInfo
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- CN114990993A CN114990993A CN202210785935.XA CN202210785935A CN114990993A CN 114990993 A CN114990993 A CN 114990993A CN 202210785935 A CN202210785935 A CN 202210785935A CN 114990993 A CN114990993 A CN 114990993A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a high-precision positioning device and a positioning method for an inclined anchor rod group, which comprises an adjusting bottom plate, a positioning tool for synchronously positioning the tensioning ends of the inclined anchor rod group arranged in a structure to be constructed and an inclination adjusting component for correspondingly adjusting the inclination angle of the inclined anchor rod group by adjusting the inclination angle of the positioning tool, wherein the structure to be constructed is a reinforced concrete structure which is gradually inclined upwards from back to front, and the inclined anchor rod group comprises a plurality of prestressed anchor rods arranged along the length direction of the structure to be constructed; through the setting of this positioner, can effectually carry out accurate location to the stock when the construction to solved the problem that bulky concrete inclined plane stock crowd is difficult to effective location, had that positioning accuracy is high, use and adjust nimble characteristics.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a high-precision positioning device and a positioning method for an inclined anchor rod group.
Background
In the design process of the bridge, the side span of the steel-concrete combined box girder cable-stayed bridge usually adopts a concrete beam, so that the dead weight of a midspan large-span steel beam can be balanced by the dead weight, and the side span concrete beam can also increase the overall rigidity of a main beam; in addition, the side span concrete beam reduces the steel consumption of the full bridge, and improves the economy and the subsequent maintenance cost; the steel-concrete joint transmits huge internal force of the main beam between two materials, and has the characteristics of complex structure, complex force transmission and the like;
the traditional steel-concrete joint part consists of a concrete beam transition section, a steel-concrete joint section and a steel beam transition section; the steel-concrete combined section is formed by sleeving a steel beam outside a concrete beam; in addition, usually, grid chambers are arranged at the top, the bottom and all parts of the web plate of the steel beam, and concrete is filled in the grid chambers to be integrated with the concrete beam; meanwhile, studs or PBL shear keys are required to be welded on the top plate and the bottom plate of the cell and the web plate of the web plate cell so as to transmit longitudinal shear force, and then the steel beam, the steel-concrete combined section and the concrete beam form a continuous structure by tensioning prestressed steel strands; however, in the construction process of the above-mentioned conventional steel-concrete joint connection structure, the following problems still exist, such as:
(1) the existing connecting structure lacks an effective fixing structure to position the anchor rod and the prestressed steel beam in the process of prefabricating and pouring the arch rib section, so that the positions of the anchor rod and the prestressed steel beam are moved and deformed in the pouring process, the pouring quality of the prefabricated arch rib section is seriously influenced, and concrete cracking caused by bearing tensile stress on a local section is easily caused;
(2) because the main arch structure of the bridge is a large-volume reinforced concrete structure, the existing connecting structure mostly adopts a prefabricated and assembled mounting mode when in connection, so once the pouring is finished, the position of an anchor rod of a prefabricated block is fixed, the adjustment is difficult when the rib arch section of the bridge is mounted, and the butt joint problem of a deformed anchor rod group in the mounting process cannot be effectively avoided;
(3) when the existing connecting structure is used for connection, the adjustment of the inclination angle, the position and the curvature of an anchor rod at a spatial inclined plane is difficult to realize, the butt joint efficiency and the butt joint precision in the butt joint installation process of a concrete beam are seriously influenced, and the engineering quality is influenced;
therefore, it is desirable to design a device capable of positioning a spatial slope anchor rod group with high precision to overcome the above problems in the prior art.
Disclosure of Invention
Aiming at the existing problems, the invention aims to provide a high-precision positioning device and a positioning method for an inclined anchor rod group.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a high-precision positioning device for an inclined anchor rod group comprises an adjusting bottom plate, a positioning tool and an inclination adjusting assembly, wherein the positioning tool is used for synchronously positioning the tensioning end of the inclined anchor rod group arranged in a structure to be constructed, the inclination adjusting assembly is used for correspondingly adjusting the inclination angle of the inclined anchor rod group by adjusting the inclination angle of the positioning tool, the structure to be constructed is a reinforced concrete structure which is gradually inclined upwards from back to front, and the inclined anchor rod group comprises a plurality of prestressed anchor rods arranged along the length direction of the structure to be constructed; the rear part of the structure to be constructed is connected with a constructed structure, and the constructed structure is a reinforced concrete structure; the structure to be constructed is divided into a first pouring section and a second pouring section positioned at the front end of the first pouring section; the rear end of each prestressed anchor rod in the inclined anchor rod group is an anchoring end anchored in the constructed structure, and the front end of each prestressed anchor rod is a tensioning end; the adjusting bottom plate is a straight steel plate horizontally placed at the front end of the reinforcement cage in the first pouring section, and the adjusting bottom plate can drive the positioning tool to synchronously move in the process of horizontal movement of the front end of the reinforcement cage; the positioning tool is arranged on the adjusting bottom plate, and the inclination adjusting assembly is arranged on the adjusting bottom plate; the positioning tool is provided with a plurality of positioning holes for positioning the prestressed anchor rods, and the adjusting bottom plate is provided with a channel for the inclined anchor rod group to pass through.
Preferably, the positioning tool comprises an upper plate and a lower plate, a reinforcing structure for enhancing the installation strength is arranged between the upper plate and the lower plate, and anchor rod positioning holes are formed in the upper plate and the lower plate, wherein the anchor rod positioning holes are distributed on the outer side of the central hole and are matched with the prestressed anchor rods; the center hole is arranged at the center of the upper plate, the lower plate and the adjusting bottom plate. Preferably, the positioning device further comprises a position adjusting assembly for driving the adjusting bottom plate to translate at the front end of the reinforcement cage, and the position adjusting assembly is installed on the outer side formwork of the first pouring section.
Preferably, the position adjusting assembly comprises a left fine adjusting assembly, a right fine adjusting assembly, a front fine adjusting assembly and a rear fine adjusting assembly, and the position relation between the bottom plate and the outer side template in the front-rear position direction is adjusted and adjusted through the front fine adjusting assembly and the rear fine adjusting assembly; the position relation between the bottom plate and the outer side template in the left and right position direction is adjusted and adjusted through the left and right fine adjustment components.
Preferably, the front fine adjustment assembly, the rear fine adjustment assembly, the left fine adjustment assembly and the right fine adjustment assembly respectively comprise a sliding rope, an embedding seat and an adjusting piece, wherein the embedding seat is installed on the outer template, and the adjusting piece is installed on the embedding seat; the fixed end of the sliding rope is connected with the bottom plate, the free end of the sliding rope is connected with the adjusting piece through a pulley, and the pulley is arranged on the outer template.
Preferably, a sliding rope wire coil is installed on the adjusting piece, the sliding rope is arranged on the sliding rope wire coil, and the sliding rope wire coil is connected with the speed reducing motor.
Preferably, the adjusting piece is installed in a trapezoidal clamping groove on the embedding seat, and a limiting block is installed at the end part of the trapezoidal clamping groove.
Preferably, the inclination adjusting assembly comprises a first rigid cushion block and a first adjusting screw, wherein the first rigid cushion block is fixedly arranged on the adjusting bottom plate, the first adjusting screw penetrates through the first rigid cushion block and the adjusting bottom plate, and two ends of the first adjusting screw are connected with the lower plate and the reinforcing mesh of the rear pouring section through first fastening nuts respectively.
A method for positioning an inclined anchor rod group by a high-precision positioning device comprises the following steps:
step one, laying and anchoring inclined anchor rod groups: after the construction of the constructed structure is completed, distributing all prestressed anchor rods in the inclined anchor rod group, and anchoring the rear ends of all prestressed anchor rods in the constructed structure;
step two, the construction of the structure to be constructed is carried out, and the process is as follows:
step S1, construction of a pouring section is carried out, and the method comprises the following steps:
s101, binding a formwork and a reinforcement cage: erecting a formwork of the first pouring section, binding the reinforcement cage in the first pouring section, and enabling the front end of each prestressed anchor rod in the first step to penetrate out of the front end of the reinforcement cage;
s102, hoisting the high-precision positioning device in place: hoisting the high-precision positioning device in place, and enabling the tensioning ends of all prestressed anchor rods in the inclined anchor rod group to penetrate out of the positioning holes;
step S103, adjusting the inclination angle of the positioning tool: adjusting the inclination angle of the positioning tool through the inclination adjusting assembly to enable the positioning tool to be located on one cross section of the structure to be constructed;
step S104, adjusting the position of the tension end of the anchor rod: translating the adjusting bottom plate at the front end of the reinforcement cage, and driving the positioning tool and the tensioning ends of the prestressed anchor rods to synchronously move in the translation process so as to synchronously adjust the tensioning ends of the prestressed anchor rods until the prestressed anchor rods are adjusted in place;
step S105, pouring concrete: carrying out concrete pouring on the first pouring section;
step S2, anchor rod tensioning: tensioning each prestressed anchor rod in the inclined anchor rod group by using the positioning tool;
step S3, construction of a rear pouring section: and constructing the rear pouring section.
Preferably, the high-precision positioning device further comprises a position adjusting assembly for driving the adjusting bottom plate to translate at the front end of the reinforcement cage, and the position adjusting assembly is installed on the supporting formwork of the cast-in-place section.
The invention has the beneficial effects that: the invention discloses a high-precision positioning device and a positioning method for an inclined anchor rod group, and compared with the prior art, the invention has the improvement that:
the invention designs a high-precision positioning device and a positioning method for an inclined anchor rod group, wherein the high-precision positioning device comprises a positioning tool and a bottom plate, and in the installation process:
(1) the position of the bottom plate can be finely adjusted by using the position adjusting assembly, so that the bottom plate is matched with the position of the prestressed anchor rod and the end section of the rear pouring section, and the anchor rod is effectively preliminarily positioned, guided and fixed;
(2) on the basis of the position adjusting assembly, the high-precision positioning device for the inclined anchor rod group adjusts the position of the integral positioning tool on the adjusting bottom plate by using the inclination adjusting assembly, so that the inclination of the inclination adjusting assembly can be matched with the position and the curvature of the prestressed anchor rod, and the curvature of the front end of the anchor rod is positioned, thereby effectively avoiding the deformation of the anchor rod in the grouting process and facilitating the accurate positioning of the anchor rod group;
(3) meanwhile, the anchor rod is accurately positioned through the adjusted adjusting bottom plate and the anchor rod positioning hole in the positioning tool, so that the position precision and the flexibility of the positioned anchor rod can be effectively ensured, the connection of a post-pouring section and the anchor rod in the butt joint process of the steel box arch section is facilitated, and the construction efficiency is effectively improved;
(4) by using the high-precision positioning device for the inclined anchor rod group, the position and the inclination of the anchor rod can be effectively positioned in the construction process of the inclined anchor rod group, the positioning precision of the inclined anchor rod group can meet the design requirement, the problems of deformation and displacement of the anchor rod group in the pouring process can be effectively solved, and the high-precision positioning device has the advantages of high butt joint precision and flexible use and adjustment;
(5) for finely adjusting the position of the positioning tool in use, the high-precision positioning device for the inclined anchor rod group further designs a fine adjustment assembly, the position of the positioning tool is adjusted under the action of the speed reducing motor in use, the workload of construction workers is effectively reduced, meanwhile, manual errors during manual adjustment are avoided, and the device has the advantages of high automation degree and adjustment precision and convenience in use.
Drawings
Fig. 1 is an assembly effect diagram of the high-precision positioning device for the space slope anchor rod group.
Fig. 2 is an installation cross-sectional view of the high-precision positioning device for the space slope anchor rod group of the invention.
Fig. 3 is an assembly effect diagram of the positioning tool of the invention.
Fig. 4 is a front view of the high-precision positioning device for the space slope anchor rod group.
Fig. 5 is a top view of the high-precision positioning device for the space slope anchor rod group.
Fig. 6 is a left side view of the high-precision positioning device for the space slope anchor rod group.
Fig. 7 is a partially enlarged view of the high-precision positioning device a for the space slope anchor rod group according to the invention.
Fig. 8 is a view showing the effect of the installation of the insert holder and the adjusting member of the present invention.
Fig. 9 is a schematic structural view of the embedding holder of the present invention.
Fig. 10 is a schematic view of the structure of the adjusting member of the present invention.
Fig. 11 is a schematic structural view of the limiting block of the present invention.
FIG. 12 is a cross-sectional view of a stop of the present invention.
FIG. 13 is a partial enlarged view of the stopper B of the present invention.
Wherein: 1. an arch bridge arch foot 11, a rear pouring section 12, a first pouring section 13, a constructed structure 2, a positioning device 3, a steel box arch section 4, a positioning tool 41, an upper plate 411, a lifting ring 412, a plane horizontal ruler 413, an angle horizontal ruler 42, a lower plate 43, a sliding rope 431, a pulley 432, a fixing seat 4321, a trapezoidal clamping groove 4322, a bolt connecting hole 433, an adjusting piece 4331, a mounting groove 4332, a trapezoidal clamping block 434, a speed reducing motor 435, a sliding rope coil 436, a first bearing 437, a jack 438, a limiting block 4381, a limiting block housing 4382, an inserting rod 4383, a rotating rod 4384, a sliding groove 4385, a 4386, a sliding block 4387, an adjusting cam 4388, a bayonet 4389, a second bearing 44, a longitudinal reinforcing rib plate 45, a transverse reinforcing rib plate 46, a first rigid rib plate 47, a first adjusting screw 471, a first screw cap 471, 48. the steel plate comprises corner angle steel, 49 lateral limiting plates, 40 anchor rod positioning holes, 401 central holes, 6 prestressed anchor rods, 7 prestressed steel bundles, 8 outer side formworks and 9 adjusting bottom plates.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the drawings and the embodiments.
Example 1: referring to fig. 1-13, a high-precision positioning device and a positioning method for an inclined anchor rod group are shown;
the high-precision positioning device for the inclined anchor rod group is a positioning device 2, the positioning device 2 comprises an adjusting bottom plate 9, a positioning tool 4 for synchronously positioning the tensioning end of the inclined anchor rod group arranged in the structure to be constructed and an inclination adjusting assembly for correspondingly adjusting the inclination angle of the inclined anchor rod group by adjusting the inclination angle of the positioning tool 4, the structure to be constructed is a reinforced concrete structure which is gradually inclined upwards from back to front, and the inclined anchor rod group comprises a plurality of prestressed anchor rods 6 arranged along the length direction of the structure to be constructed; the rear part of the structure to be constructed is connected with a constructed structure 13, and the constructed structure 13 is a reinforced concrete structure; the structure to be constructed is divided into a first pouring section 12 and a second pouring section 11 positioned at the front end of the first pouring section; the rear end of each prestressed anchor rod 6 in the inclined anchor rod group is an anchoring end anchored in the constructed structure 13, and the front end of each prestressed anchor rod is a tensioning end; the adjusting bottom plate 9 is a straight steel plate horizontally placed at the front end of the reinforcement cage in the first pouring section 11, and the adjusting bottom plate 9 can drive the positioning tool 4 to move synchronously when the front end of the reinforcement cage moves horizontally; the positioning tool is arranged on the adjusting bottom plate 9, the positioning tool 4 is arranged on the rear pouring section 11 through the adjusting bottom plate 9, and the inclination adjusting assembly is arranged on the adjusting bottom plate 9; the positioning tool 4 is provided with a plurality of positioning holes for positioning the prestressed anchor rods 6, and the adjusting bottom plate is provided with a channel for the inclined anchor rod group to pass through.
Preferably, the positioning hole is a circular through hole matched with the prestressed anchor rod 6, and the structure to be constructed and the constructed structure are both concrete arch sections of a main arch of the arch bridge.
Preferably, in order to position the prestressed anchor 6, the positioning fixture 4 includes an upper plate 41 and a lower plate 42, and the upper plate 41 and the lower plate 42 are connected by a reinforcing structure with enhanced installation strength, so as to ensure the overall strength of the positioning fixture 4.
The reinforcing structure comprises a longitudinal reinforcing rib plate 44, a transverse reinforcing rib plate 45 and corner angle steel 48, wherein the longitudinal reinforcing rib plate 44 and the transverse reinforcing rib plate 45 are respectively arranged in a longitudinal reinforcing area and a transverse reinforcing area of the positioning tool 4, the longitudinal reinforcing rib plate 44 and the transverse reinforcing rib plate 45 are both connecting steel plates welded between the upper plate 41 and the lower plate 42 and used for improving the connecting strength of the upper plate 41 and the lower plate 42 and preventing buckling and instability in the butt joint process, and the arrangement number of the upper plate 41 and the lower plate 42 is designed according to the sectional dimension of the positioning tool; the corner angle steel 48 is welded at four corners of the upper plate 41 and the lower plate 42, has a pressure bearing effect, and prevents buckling and instability at 4 corners of the positioning tool 4; in the use process, the corner angle steel 48 mainly plays a pressure bearing role, and the longitudinal reinforcing rib plate 44 and the transverse reinforcing rib plate 45 are arranged as safety reserves to play a role in preventing bending and radial and longitudinal deformation.
Preferably, the longitudinal reinforcing rib 44 is provided on the long sides of the upper and lower plates 41, 42, and the lateral reinforcing rib 45 is provided on the short sides of the upper and lower plates 41, 42.
Preferably, in order to be convenient for being matched with the prestressed steel bundles 7 in the structure to be constructed in the installation process, center holes 401 which are matched with each other are formed in the centers of the upper layer plate 41, the lower layer plate 42 and the adjusting bottom plate 9, when the prestressed steel bundles 7 are pulled and connected in the center holes 401 to form a prestressed tensioning area, so that the prestressed steel bundles 7 can be conveniently tensioned in the construction process;
meanwhile, in order to facilitate the adaptation with the prestressed anchor 6, the prestressed anchor 6 is accurately positioned and effectively tensioned, anchor positioning holes 40 are formed in the upper plate 41 and the lower plate 42, and the prestressed anchor 6 penetrating through the channel in the adjusting base plate 9 is conveniently positioned by the anchor positioning holes 40.
Preferably, according to actual needs, the adjusting bottom plate 9 is provided with an anchor rod positioning hole 40 for positioning the prestressed anchor rod 6; when the anchor rod positioning hole 40 is not required to be formed in the adjusting bottom plate 9, the prestressed anchor rod 6 penetrates through a center hole (channel) formed in the adjusting bottom plate 9 and penetrates into the anchor rod positioning hole 40 of the positioning tool for positioning.
Preferably, for the convenience of hoisting, hoisting rings 411 are further arranged on the upper plate 41, the hoisting rings 411 are symmetrically arranged on the upper plate 41, and meanwhile, for the convenience of arranging a plane level 412 and an angle level 413 on the positioning tool 4, wherein the plane level 412 is used for judging the flatness in the plane of the positioning tool (controlling the end of the anchor rod to be located on the same spatial plane) during installation, and the angle level 413 is used for judging whether the cross-sectional angle of the end of the concrete of the constructed structure is consistent with the cross-sectional angle of the end of the concrete of the constructed structure.
Example 2: different from the embodiment 1, in order to facilitate the adjustment of the position of the front end of the reinforcement cage at the end section of the rear pouring section 11 of the adjustment bottom plate 9 during the installation process, the positioning device further comprises a position adjusting assembly for driving the adjustment bottom plate 9 to translate at the front end of the reinforcement cage, the position adjusting assembly is installed on the outer side formwork 8 of the first pouring section, when in use, the position of the front end of the reinforcement cage at the end section of the rear pouring section 11 of the adjustment bottom plate 9 is adjusted by the position adjusting assembly to be matched with the position of the prestressed anchor rod 6, the adjustment bottom plate 9 is further provided with a pulley lifting lug 91, and the pulley lifting lug 91 is matched with the position adjusting assembly to adjust the position of the adjustment bottom plate 9;
the position adjusting component comprises a left fine adjusting component, a right fine adjusting component, a front fine adjusting component and a rear fine adjusting component, the front fine adjusting component and the rear fine adjusting component are arranged on the upper side panel of the outer template 8, the left fine adjusting component and the right fine adjusting component are arranged on the front or rear side panel of the outer template 8, when in use,
the position relation between the bottom plate 9 and the outer side template 8 in the front and rear position direction is adjusted and adjusted through the front and rear fine adjustment components;
the position relation between the left and right positions of the bottom plate 9 and the outer template 8 is adjusted and adjusted through the left and right fine adjustment components.
Preferably, the front and rear fine adjustment assembly, the left and right fine adjustment assembly and the left and right fine adjustment assembly respectively comprise a sliding rope 43, an embedding seat 432 and an adjusting piece 433, one end fixed end of the sliding rope 43 is fixedly connected with a pulley lifting lug 91, the other end free end of the sliding rope 43 penetrates through a pulley 431 to be connected with the adjusting piece 433, and the adjusting piece 433 is installed on the outer side formwork 8 through the embedding seat 432, namely, when the adjusting device is used, the position of the front end of the reinforcement cage at the section of the end part of the rear pouring section 11 of the adjusting bottom plate 9 is adjusted by rotating the adjusting piece 433 and further adjusting the relative length of the sliding rope 43, so that the position of the front end of the reinforcement cage at the section of the rear pouring section 11 is matched with the position of the prestressed anchor rod 6, and the prestressed anchor rod 6 is accurately positioned.
Preferably, in order to fix the embedding base 432 and the adjusting member 433 as required when the external form panel is used, so that the embedding base 432 can be quickly fixed on the external form panel 8, the embedding base 432 is provided with a bolting hole 4322, and when the external form panel is used, the embedding base 432 can be fixedly mounted on the external form panel 8 through the bolting hole 4322, or the embedding base 432 can be directly welded on the external form panel 8.
Preferably, in order to fix and install the adjusting member 433, a trapezoidal clamping groove 4321 is further arranged on the embedding seat 432, the trapezoidal clamping groove 4321 is matched with a trapezoidal clamping block 4332 arranged at the bottom of the adjusting member 433, that is, the trapezoidal clamping block 4332 is clamped in the trapezoidal clamping groove 4321 when the device is used, so that the embedding seat 432 is connected with the adjusting member 433, a limiting block 438 is detachably arranged at an opening part at the end part of the trapezoidal clamping groove 4321, and the limiting block 438 is used for limiting the trapezoidal clamping block 4332 to prevent the trapezoidal clamping block 4321 from sliding out of the trapezoidal clamping groove 4321 when the device is used; and a mounting groove 4331 is further formed in the adjusting part 433, a sliding rope wire coil 435 is mounted in the mounting groove 4331 through a first bearing 436, the sliding rope wire coil 435 is fixedly connected with the sliding rope 43, and the sliding rope wire coil 435 is connected with the driving end of the speed reducing motor 434, that is, when the adjusting bottom plate 9 is used, the sliding rope wire coil 435 is driven to rotate through the driving action of the speed reducing motor 434, so that the position of the front end of the reinforcement cage at the section of the end part of the rear pouring section 11 of the adjusting bottom plate 9 is adjusted through the sliding rope 43.
Preferably, in order to facilitate the installation of the trapezoid latch 4332 in the trapezoid latch 4321, the limiting block 438 is detachably installed at an end opening of the trapezoid latch 4321 and is adapted to the insertion hole 437 installed at the end opening of the trapezoid latch, the limiting block 438 comprises a limiting block housing 4381, an insertion rod 4382 and a rotation rod 4383, the limiting block housing 4381 is a trapezoid latch matched with the trapezoid latch 4321, the limiting block housing 4381 is hollow inside, the rotation rod 4383 is rotatably installed in an inner cavity of the limiting block housing 4381 through a second bearing 4389, an adjusting cam 4387 is further fixedly installed on the rotation rod 4383, when in use, the rotation rod 4383 is driven to rotate by adjusting the latch 4384 installed at the top of the rotation rod 4383, so that the adjusting cam 4387 and the rotation rod 4383 rotate coaxially, the adjusting cam 4387 is further provided with a sliding groove 4385, the sliding groove 4385 is adapted to the sliding block 4386 installed at the tail end of the insertion rod 4382, and the front end of the inserted bar 4382 extends out of a telescopic groove formed in the limiting block housing 4381 to be matched with the jack 437, that is, when the device is used, the inserted bar 4382 is driven to stretch along the slot by rotating the adjusting cam 4387 and is clamped into the jack 437, so that the limiting block 438 is mounted.
Preferably, for can effectually rotate through adjusting cam 4387 when using and drive inserted bar 4382 along the slot is flexible, the design spout 4385 is the arc draw-in groove, the arc draw-in groove is with the card ball looks adaptation of slider 4386 front end, when card ball card was gone into in the arc draw-in groove promptly, the card ball can slide along the arc draw-in groove, and can not follow the interior roll-off of arc draw-in groove, simultaneously will in being convenient for when the installation go into spout 4385 with slider 4386 card bayonet 4388 has been seted up on the spout, and for avoiding slider 4386 to follow the interior roll-off of spout 4385, two upper and lower arc wall dislocation set each other of bayonet 4388.
Preferably, in order to fix the position of the positioning tool 4 after installation, a lateral limiting plate 49 is further disposed on the outer side of the adjusting bottom plate 9, and the lateral swing of the positioning tool 4 is controlled by the lateral limiting plate 49.
Example 3: different from the above embodiment, in order to adjust the inclination of the positioning fixture 4 on the adjustment base plate 9 during the installation of the positioning fixture 4 and ensure the position and the curvature of the end of the prestressed anchor 6, the inclination adjustment assembly includes a first rigid spacer 46 and a first adjustment screw 47, wherein,
first rigid cushion 46 is fixed to be set up on adjustment bottom plate 9, first adjusting screw 47 runs through first rigid cushion 46 and adjustment bottom plate 9 setting, and first adjusting screw 47's both ends are connected with lower floor's board 42 and the interior reinforcing bar net piece of back pouring section 11 through first fastening nut 471 respectively, and the installation inclination of lower floor's board 42 is adjusted when installation location frock 4 of being convenient for, makes its gradient satisfy the installation requirement.
Example 4: different from the embodiment, the method for positioning the inclined anchor rod group by the high-precision positioning device is characterized by comprising the following steps: the method comprises the following steps:
step one, laying and anchoring inclined anchor rod groups: after the construction of the constructed structure is completed, distributing all prestressed anchor rods in the inclined anchor rod group, and anchoring the rear ends of all prestressed anchor rods in the constructed structure;
step two, constructing a structure to be constructed, wherein the process is as follows:
step S1, pouring section construction firstly, comprising the following steps:
s101, binding a formwork and a reinforcement cage: erecting a formwork of the first pouring section, binding the reinforcement cage in the first pouring section, and enabling the front end of each prestressed anchor rod in the first step to penetrate out of the front end of the reinforcement cage;
s102, hoisting the high-precision positioning device in place: hoisting the high-precision positioning device in place, and enabling the tensioning ends of all prestressed anchor rods in the inclined anchor rod group to penetrate out of the positioning holes;
step S103, adjusting the inclination angle of the positioning tool: adjusting the inclination angle of the positioning tool through the inclination adjusting assembly to enable the positioning tool to be located on one cross section of the structure to be constructed;
step S104, adjusting the position of the tension end of the anchor rod: translating the adjusting bottom plate at the front end of the reinforcement cage, and driving the positioning tool and the tensioning ends of the prestressed anchor rods to synchronously move in the translation process so as to synchronously adjust the tensioning ends of the prestressed anchor rods until the prestressed anchor rods are adjusted in place;
step S105, pouring concrete: carrying out concrete pouring on the first pouring section;
step S2, anchor rod tensioning: tensioning each prestressed anchor rod in the inclined anchor rod group by using the positioning tool;
step S3, construction of a rear pouring section: and constructing the rear pouring section.
Preferably, the high-precision positioning device further comprises a position adjusting assembly for driving the adjusting bottom plate to translate at the front end of the reinforcement cage, and the position adjusting assembly is installed on the supporting formwork of the first pouring section.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a slope stock crowd high accuracy positioner which characterized in that: the construction method comprises the steps of adjusting a bottom plate, a positioning tool for synchronously positioning the tensioning ends of inclined anchor rod groups distributed in a structure to be constructed and an inclination adjusting assembly for correspondingly adjusting the inclination angles of the inclined anchor rod groups by adjusting the inclination angles of the positioning tool, wherein the structure to be constructed is a reinforced concrete structure which gradually inclines upwards from back to front, and the inclined anchor rod groups comprise a plurality of prestressed anchor rods distributed along the length direction of the structure to be constructed; the rear part of the structure to be constructed is connected with a constructed structure, and the constructed structure is a reinforced concrete structure; the structure to be constructed is divided into a first pouring section and a second pouring section positioned at the front end of the first pouring section; the rear end of each prestressed anchor rod in the inclined anchor rod group is an anchoring end anchored in the constructed structure, and the front end of each prestressed anchor rod is a tensioning end; the adjusting bottom plate is a straight steel plate horizontally placed at the front end of the reinforcement cage in the first pouring section, and the adjusting bottom plate can drive the positioning tool to synchronously move in the process of horizontal movement of the front end of the reinforcement cage; the positioning tool is arranged on the adjusting bottom plate, and the inclination adjusting assembly is arranged on the adjusting bottom plate; the positioning tool is provided with a plurality of positioning holes for positioning the prestressed anchor rods, and the adjusting bottom plate is provided with a channel for the inclined anchor rod group to pass through.
2. The high-precision positioning device for the space slope anchor rod group according to claim 1, is characterized in that: the positioning tool comprises an upper layer plate and a lower layer plate, a reinforcing structure for enhancing the installation strength is arranged between the upper layer plate and the lower layer plate, anchor rod positioning holes are arranged on the upper layer plate and the lower layer plate, wherein,
the anchor rod positioning hole is arranged on the outer side of the central hole and is matched with the prestressed anchor rod;
the center hole is arranged at the center of the upper plate, the lower plate and the adjusting bottom plate.
3. The high-precision positioning device for the spatial slope anchor rod group according to claim 1, is characterized in that: the positioning device further comprises a position adjusting assembly which drives the adjusting bottom plate to translate at the front end of the reinforcement cage, and the position adjusting assembly is installed on the outer side formwork of the first pouring section.
4. The high-precision positioning device for the space slope anchor rod group according to claim 3, is characterized in that: the position adjusting component comprises a left fine adjusting component, a right fine adjusting component and a front fine adjusting component and a rear fine adjusting component, and the position relation between the adjusting bottom plate and the outer side template in the front and rear position directions is adjusted through the front fine adjusting component and the rear fine adjusting component; the position relation between the bottom plate and the outer side template in the left and right position direction is adjusted and adjusted through the left and right fine adjustment components.
5. The high-precision positioning device for the space slope anchor rod group according to claim 4, is characterized in that: the front and rear fine adjustment assemblies and the left and right fine adjustment assemblies respectively comprise a sliding rope, an embedding seat and an adjusting piece, wherein the embedding seat is installed on the outer template, and the adjusting piece is installed on the embedding seat; the fixed end of the sliding rope is connected with the bottom plate, the free end of the sliding rope is connected with the adjusting piece through a pulley, and the pulley is arranged on the outer template.
6. The high-precision positioning device for the space slope anchor rod group according to claim 5, is characterized in that: the adjusting piece is provided with a sliding rope wire coil, the sliding rope wire coil is provided with the sliding rope, and the sliding rope wire coil is connected with the speed reducing motor.
7. The high-precision positioning device for the space slope anchor rod group according to claim 5, is characterized in that: the adjusting piece is arranged in the trapezoidal clamping groove on the embedding and fixing seat, and the end part of the trapezoidal clamping groove is provided with a limiting block.
8. The high-precision positioning device for the spatial slope anchor rod group according to claim 1, is characterized in that: the inclination adjusting component comprises a first rigid cushion block and a first adjusting screw rod, wherein,
the first rigid cushion block is fixedly arranged on the adjusting bottom plate, the first adjusting screw penetrates through the first rigid cushion block and the adjusting bottom plate, and two ends of the first adjusting screw are connected with the lower layer plate and the reinforcing steel net piece of the rear pouring section through first fastening nuts respectively.
9. A method for positioning a group of inclined anchor rods by using the high-precision positioning device according to claim 1, wherein: the method comprises the following steps:
step one, laying and anchoring inclined anchor rod groups: after the construction of the constructed structure is completed, distributing all prestressed anchor rods in the inclined anchor rod group, and anchoring the rear ends of all prestressed anchor rods in the constructed structure;
step two, constructing a structure to be constructed, wherein the process is as follows:
step S1, pouring section construction firstly, comprising the following steps:
s101, binding a formwork with a reinforcement cage: erecting a formwork of the first pouring section, binding the reinforcement cage in the first pouring section, and enabling the front end of each prestressed anchor rod in the first step to penetrate out of the front end of the reinforcement cage;
s102, hoisting the high-precision positioning device in place: hoisting the high-precision positioning device in place, and enabling the tensioning ends of all prestressed anchor rods in the inclined anchor rod group to penetrate out of the positioning holes;
step S103, adjusting the inclination angle of the positioning tool: adjusting the inclination angle of the positioning tool through the inclination adjusting assembly to enable the positioning tool to be located on one cross section of the structure to be constructed;
step S104, adjusting the position of the tension end of the anchor rod: translating the adjusting bottom plate at the front end of the reinforcement cage, and driving the positioning tool and the tensioning ends of the prestressed anchor rods to synchronously move in the translation process so as to synchronously adjust the tensioning ends of the prestressed anchor rods until the prestressed anchor rods are adjusted in place;
step S105, pouring concrete: carrying out concrete pouring on the first pouring section;
step S2, anchor rod tensioning: tensioning each prestressed anchor rod in the inclined anchor rod group by using the positioning tool;
step S3, construction of a rear pouring section: and constructing the rear pouring section.
10. The high-precision positioning device for the spatial slope anchor rod group according to claim 9, characterized in that: the high-precision positioning device further comprises a position adjusting assembly which drives the adjusting bottom plate to translate at the front end of the steel reinforcement cage, and the position adjusting assembly is installed on the supporting template of the first pouring section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785935.XA CN114990993A (en) | 2022-07-04 | 2022-07-04 | High-precision positioning device and positioning method for inclined anchor rod group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785935.XA CN114990993A (en) | 2022-07-04 | 2022-07-04 | High-precision positioning device and positioning method for inclined anchor rod group |
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| CN114990993A true CN114990993A (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210785935.XA Pending CN114990993A (en) | 2022-07-04 | 2022-07-04 | High-precision positioning device and positioning method for inclined anchor rod group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538305A (en) * | 2022-09-29 | 2022-12-30 | 中铁第四勘察设计院集团有限公司 | Novel rock anchor anchoring system and construction method thereof |
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2022
- 2022-07-04 CN CN202210785935.XA patent/CN114990993A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538305A (en) * | 2022-09-29 | 2022-12-30 | 中铁第四勘察设计院集团有限公司 | Novel rock anchor anchoring system and construction method thereof |
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