A method for vertically constructing a three-pile conductor frame

Abstract

The present application relates to the technical field of wind power platform construction, and in particular to a method for vertically constructing a three-pile conductor frame, including: a step of making a conductor frame lower section; a step of making a conductor frame upper section; a step of establishing a reference control network: according to the reference measurement position, reflective sheets are set at the reference measurement positions of the conductor frame lower section and the conductor frame upper section respectively; a general assembly step: vertically hoisting the first main leg on the first base, vertically hoisting the main structure sheet on the second base and the third base, connecting the first main leg with the second main leg through the second scissors brace, and connecting the first main leg with the third main leg through the third scissors brace; fixing the conductor frame upper section on the top of the conductor frame lower section; comparing the theoretical data of the reference model with the actual measured data on site, and dynamically adjusting the installation position according to the difference between the theoretical data and the actual measured data. The overall vertical assembly does not require turning over, which reduces the construction difficulty and improves the installation accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of wind power platform construction, and in particular to a method for vertically constructing a three-pile conductor frame. Background Art

[0002] In the construction of offshore platforms, wind farms and oil drilling platforms, three-pile jackets are widely used in marine engineering as an important part of infrastructure. The traditional construction method of three-pile jackets adopts a horizontal construction method, that is, the three-pile jackets are assembled and constructed in a horizontal posture in a shipyard or on a platform.

[0003] The horizontal construction method requires a large water surface and working space, and has high requirements for the site and lifting equipment. For large structures such as the three-pile jacket, the turning process also increases the difficulty of safety control. In addition, the three-pile jacket needs to be turned over after construction. During the turning process, due to the large overall weight of the three-pile jacket, the turning process usually relies on large lifting equipment to complete, which is difficult. Not only that, during the turning process and the transportation process after turning over, it is often easy to cause uneven force on each structure and easy deformation, resulting in overall accuracy deviation, which is not conducive to the subsequent installation of other structural parts. It is necessary to re-test the accuracy and adjust the accuracy, but the overall construction has been completed and it is difficult to modify. Summary of the invention

[0004] The present application aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present application provides a method for vertically constructing a three-pile conductor frame, which is assembled vertically as a whole without turning over, thus reducing the construction difficulty and improving the installation accuracy.

[0005] A method for vertically constructing a three-pile conductor frame, comprising:

[0006] The steps of manufacturing the lower section of the conductor frame are as follows: the lower section of the conductor frame is divided into a first main leg, a scissors brace component and a main structure sheet for manufacturing; the first scissors brace, the second scissors brace and the third scissors brace are manufactured, and the scissors brace component includes the second scissors brace and the third scissors brace; the second main leg and the third main leg are manufactured, and the first scissors brace is installed between the second main leg and the third main leg and fixed by welding to assemble the main structure sheet;

[0007] The steps of manufacturing the upper section of the conductor frame are as follows: the upper section of the conductor frame is divided into a general column, a bottom plate and a plurality of corbel boxes for manufacturing, a support frame for the upper section of the conductor frame is built, the bottom plate is placed on the support frame for the upper section of the conductor frame for positioning, the general column is vertically positioned on the bottom plate for welding, and then each of the corbel boxes is positioned and welded to the general column and the bottom plate to assemble the upper section of the conductor frame, wherein each of the corbel boxes is circumferentially spaced and arranged on the outer periphery of the general column;

[0008] The step of establishing a reference control network: in the step of manufacturing the lower large section of the conductor frame and the step of manufacturing the upper large section of the conductor frame, according to the reference measurement position, reflective sheets are respectively set at each reference measurement position of the lower large section of the conductor frame and the upper large section of the conductor frame, wherein the center of the reflective sheet is set as the measurement point;

[0009] General assembly steps: constructing a first base, a second base and a third base in a triangular distribution on the ground, vertically hoisting the first main leg on the first base, and vertically hoisting the main structure sheet on the second base and the third base. After the first main leg and the main structure sheet are hoisted in place, the first main leg and the second main leg are connected by the second scissors brace, and the first main leg and the third main leg are connected by the third scissors brace to assemble the lower large section of the jacket; then hoisting the upper large section of the jacket, horizontally fixing the bottom plate of the upper large section of the jacket on the top of the first main leg, the second main leg and the third main leg to assemble a three-pile jacket;

[0010] Among them, in the general assembly step, a total station is used to detect the position of the measurement points on each of the reflectors, and the measured data is imported into the benchmark model, and the theoretical data of the benchmark model is compared with the measured data on site, and the installation position is dynamically adjusted according to the difference between the theoretical data and the measured data.

[0011] In an optional or preferred embodiment, the steps for making the lower large section of the conductor frame include: building a first main leg support frame, making a first grouting section and a first conductor section, the lower end of the first conductor section is a first angle end connected to the first grouting section, the first grouting section and the first conductor section are respectively hoisted to the first main leg support frame for positioning, and after positioning, the first grouting section and the first conductor section are welded at the first angle end to assemble into a first main leg; building a scissors strut support frame, and making the first scissors strut, the second scissors strut and the third scissors strut on the scissors strut support frame; building a main structure sheet support frame, making a second grouting section, a second conductor section, a third grouting section and a third conductor section, the lower end of the second conductor section is a first angle end connected to the second grouting section The second angled end of the third guide tube section is the third angled end connected to the third grouting section, the second grouting section, the second guide tube section, the third grouting section and the third guide tube section are hoisted onto the main structure sheet support frame for positioning, after positioning, the second grouting section and the second guide tube section are welded at the second angled end position to form a second main leg, the third grouting section and the third guide tube section are welded at the third angled end position to form a third main leg, the first scissors support is hoisted onto the main structure sheet support frame for positioning, the first scissors support is located between the second main leg and the third main leg, and the two sides of the first scissors support are respectively welded to the second main leg and the third main leg to form the main structure sheet.

[0012] In an optional or preferred embodiment, in the step of manufacturing the lower large section of the conductor frame, when the first angle end is welded to the first grouting section, the longitudinal seam of the first conductor section at the first angle end is staggered with the longitudinal seam on the first grouting section, when the second angle end is welded to the second grouting section, the longitudinal seam of the second conductor section at the second angle end is staggered with the longitudinal seam on the second grouting section, and when the third angle end is welded to the third grouting section, the longitudinal seam of the third conductor section at the third angle end is staggered with the longitudinal seam on the third grouting section.

[0013] In an optional or preferred embodiment, in the step of manufacturing the lower large section of the conductor frame, a first temporary support rod is installed between the end of the second main leg and the end of the third main leg for support; in the step of manufacturing the lower large section of the conductor frame, a second temporary support rod is installed at the fork of the first scissors strut, the fork of the second scissors strut and the fork of the third scissors strut for support.

[0014] In an optional or preferred embodiment, in the step of manufacturing the large section of the catheter frame, after the general column is manufactured, a fan flange is welded to the top of the general column, and then the general column is installed on the base plate.

[0015] In an optional or preferred embodiment, in the general assembly step, after the upper section of the conductor frame is hoisted to butt joint with the lower section of the conductor frame, the horizontality, verticality and height of the upper section of the conductor frame and the lower section of the conductor frame are measured. After the measurements are qualified, the butt weld at the joint of the upper section of the conductor frame and the lower section of the conductor frame is subjected to penetration treatment and ultrasonic testing.

[0016] In an optional or preferred embodiment, in the step of manufacturing the lower section of the conductor frame, fixed steel pads are installed on the inner side of the top of the second main leg and the inner side of the top of the third main leg, respectively, and the two fixed steel pads extend from the grooves at the top of the second main leg and the top of the third main leg, respectively. An adjustable steel pad is installed on the inner side of the top of the first main leg, and the adjustable steel pad is temporarily fixed by spot welding. The adjustable steel pad extends from the groove at the top of the first main leg, and a plurality of adjusting rods are arranged in the middle of the adjustable steel pad. After the lower section of the conductor frame is assembled, the horizontality of the upper end of the adjustable steel pad is measured, and then the adjustable steel pad is trimmed to control the horizontality of the upper end of the adjustable steel pad and the upper end of each fixed steel pad to be within 1 mm. The upper section of the conductor frame is hoisted, and the bottom plate of the upper section of the conductor frame falls on The fan flange of the large section of the conductor frame is leveled on the adjusting steel washer and the two fixed steel washer cylinders, the adjusting steel washer cylinder is separated from the spot welding position on the inner side of the top of the first main leg, and then the height of the adjusting steel washer cylinder is adjusted by the adjusting rod sheet so that the upper end of the adjusting steel washer cylinder is abutted against the bottom of the bottom plate of the large section of the conductor frame, and the adjusting steel washer cylinder is welded and fixed to the first main leg; the bottom plate of the large section of the conductor frame is fixed to the groove position of the top of the first main leg, the groove position of the top of the second main leg, and the groove position of the top of the third main leg by positioning welding, and then the hook for lifting the large section of the conductor frame is released to complete the butt welds between the bottom plate of the large section of the conductor frame and the groove position of the top of the first main leg, the groove position of the top of the second main leg, and the groove position of the top of the third main leg.

[0017] In an optional or preferred embodiment, there are at least three tack welds between the top groove of the first main leg, the top groove of the second main leg, and the top groove of the third main leg and the bottom plate of the large section of the conductor frame, each tack weld is at least 200 mm, the weld thickness is at least 30 mm, and the tack welds are evenly arranged.

[0018] In an optional or preferred embodiment, the first scissors strut, the second scissors strut and the third scissors strut all include an upper fork and a lower fork, wherein when the main structure sheet is assembled, the upper fork of the first scissors strut is first hoisted to the upper part between the second main leg and the third main leg, and then the lower fork of the first scissors strut is hoisted to the lower part between the second main leg and the third main leg.

[0019] In an optional or preferred embodiment, when the lower section of the conductor frame is assembled, the upper fork of the second scissors strut is first hoisted to the upper part between the first main leg and the second main leg, and the upper fork of the third scissors strut is hoisted to the upper part between the first main leg and the third main leg; then the lower fork of the second scissors strut is hoisted to the lower part between the first main leg and the second main leg, and the lower fork of the third scissors strut is hoisted to the lower part between the first main leg and the third main leg.

[0020] Based on the above technical scheme, the embodiments of the present application have at least the following beneficial effects: the present application first separately produces the lower large section of the conductor rack and the upper large section of the conductor rack, and then vertically assembles the lower large section of the conductor rack and the upper large section of the conductor rack into a three-pile conductor rack. This vertical construction method reduces high-altitude welding operations, eliminates the overall turning operation, and avoids the impact on the overall accuracy during the turning process. Moreover, the vertical lifting and installation accuracy is higher, and the floor space requirement during the construction process is less than that of horizontal construction. Vertical construction can better reflect the construction situation compared to horizontal construction.

[0021] This application uses a total station to measure the deviation between the actual value and the theoretical value during the lifting process according to the reference measurement position. If the deviation is too large, it will be adjusted in time, so that the accuracy can be controlled during the construction process. The inspection requirements of the main structure pieces, scissor brace components, and the joints between the upper and lower sections of the conductor frame are comprehensively considered to improve the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 is a schematic structural diagram of the first main leg in an embodiment of the present application;

[0024] Figure 2 It is a structural schematic diagram of the main structural sheet in the embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the structure of the first scissors support in an embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of the structure of a large section of the catheter frame in an embodiment of the present application;

[0027] Figure 5 It is a schematic diagram of the main structure sheet being hoisted onto the second base and the third base in the embodiment of the present application;

[0028] Figure 6 is a schematic diagram of the structure in which the first main leg is hoisted onto the first base in an embodiment of the present application;

[0029] Figure 7It is a schematic diagram of hoisting the upper fork of the second scissors brace and the upper fork of the third scissors brace between the first main leg and the main structure sheet in an embodiment of the present application;

[0030] Figure 8 It is a schematic diagram of hoisting the lower fork of the second scissors brace and the lower fork of the third scissors brace between the first main leg and the main structure sheet in an embodiment of the present application;

[0031] Fig. 9 It is a schematic diagram of hoisting the upper large section of the conductor frame onto the lower large section of the conductor frame in an embodiment of the present application;

[0032] Fig.10 It is a top view of the overall assembly liner tooling in the embodiment of the present application;

[0033] Fig.11 It is a schematic diagram of the positional relationship between the adjusting steel cushion cylinder on the inner side of the top of the first main leg and the bottom plate of the large section of the conductor frame in the embodiment of the present application;

[0034] Fig.12 is a schematic diagram of the reference measurement position of the first main leg in an embodiment of the present application;

[0035] Fig.13 This is a schematic diagram of the reference measurement position of the main structure sheet in the embodiment of the present application;

[0036] Fig.14 It is a schematic diagram of the reference measurement position in the main viewing direction of the hoisted three-pile conductor rack in the embodiment of the present application;

[0037] Fig.15 is a schematic diagram of reference measurement positions of the bottoms of the first main leg, the second main leg and the third main leg in an embodiment of the present application;

[0038] Fig.16 It is a schematic diagram of the reference measurement position of the main viewing direction of another orientation of the hoisted three-pile conductor rack in the embodiment of the present application;

[0039] Fig.17 It is a schematic diagram of the reference measurement positions of the tops of the first main leg, the second main leg and the third main leg in the embodiment of the present application.

[0040] The accompanying drawings are marked with: the lower large section of the jacket 100, the first main leg 110, the first grouting section 111, the first pipe section 112, the first angled end 113, the main structure sheet 120, the first scissors support 131, the second scissors support 132, the third scissors support 133, the second main leg 142, the second grouting section 1421, the second pipe section 1422, the second angled end 1423, the third main leg 143, the third grouting section 1431, the third pipe section 1432, the third angled end 1433, the adjusting steel washer 1434, the adjusting rod sheet 1435, and the second temporary support rod 1311;

[0041] The upper section 200 of the pipe frame, the general column 210, the bottom plate 220, the bracket box 230, and the fan flange 240;

[0042] A first base 301, a second base 302, and a third base 303;

[0043] A first supporting bracket 401 , a second supporting bracket 402 , and a third supporting bracket 403 . DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] In the construction of offshore platforms, wind farms and oil drilling platforms, three-pile jackets are widely used in marine engineering as an important part of infrastructure. The traditional construction method of three-pile jackets adopts a horizontal construction method, that is, the three-pile jackets are assembled and constructed in a horizontal posture in a shipyard or on a platform.

[0051] The horizontal construction method requires a large water surface and working space, and has high requirements for the site and lifting equipment. For large structures such as the three-pile jacket, the turning process also increases the difficulty of safety control. In addition, the three-pile jacket needs to be turned over after construction. During the turning process, due to the large overall weight of the three-pile jacket, the turning process usually relies on large lifting equipment to complete, which is difficult. Not only that, during the turning process and the transportation process after turning over, it is often easy to cause uneven force on each structure and easy deformation, resulting in overall accuracy deviation, which is not conducive to the subsequent installation of other structural parts. It is necessary to re-test the accuracy and adjust the accuracy, but the overall construction has been completed and it is difficult to modify.

[0052] Reference Figures 1 to 11 The present application provides a method for vertically constructing a three-pile conductor frame, comprising:

[0053] The manufacturing steps of the lower large section 100 of the conductor frame are as follows: the lower large section 100 of the conductor frame is divided into a first main leg 110, a scissors brace member and a main structure sheet 120 for manufacturing.

[0054] Reference Figure 1The first main leg 110 includes a first grouting section 111 and a first conduit section 112. During the manufacturing process of the first main leg 110, the first main leg support frame is first built, and then the first grouting section 111 and the first conduit section 112 are manufactured, wherein the lower end of the first conduit section 112 is a first angled end 113 connected to the first grouting section 111. The first grouting section 111 and the first conduit section 112 are respectively hoisted onto the first main leg support frame for positioning, and then the first grouting section 111 and the first conduit section 112 are welded at the first angled end 113 to assemble the first main leg 110.

[0055] A first scissors strut 131 , a second scissors strut 132 and a third scissors strut 133 are manufactured, and the scissors strut component includes the second scissors strut 132 and the third scissors strut 133 .

[0056] Specifically, a scissors-strut support frame is first constructed, and then the first scissors strut 131, the second scissors strut 132 and the third scissors strut 133 are manufactured on the scissors-strut support frame.

[0057] like Figure 3 As shown, second temporary support rods 1311 are installed at the bifurcation of the first scissors strut 131, the bifurcation of the second scissors strut 132 and the bifurcation of the third scissors strut 133 for support. The setting of the second temporary support rods 1311 helps to maintain the geometric shape of the bifurcation of the scissors struts and reduce the cumulative error during the construction process.

[0058] The second main leg 142 and the third main leg 143 are manufactured, and the first scissors support 131 is installed between the second main leg 142 and the third main leg 143 and fixed by welding to assemble into the main structure sheet 120 .

[0059] Reference Figure 2 The second main leg 142 includes a second grouting section 1421 and a second conduit section 1422 , and the third main leg 143 includes a third grouting section 1431 and a third conduit section 1432 .

[0060] The specific manufacturing steps of the main structure sheet 120 are as follows: build a main structure sheet support frame, manufacture the second grouting section 1421, the second conduit section 1422, the third grouting section 1431 and the third conduit section 1432, the lower end of the second conduit section 1422 is the second angled end 1423 connected to the second grouting section 1421, the lower end of the third conduit section 1432 is the third angled end 1433 connected to the third grouting section 1431, and hoist the second grouting section 1421, the second conduit section 1422, the third grouting section 1431 and the third conduit section 1432 onto the main structure sheet support frame for positioning After positioning, the second grouting section 1421 and the second guide tube section 1422 are welded at the second angle end 1423 to form the second main leg 142, and the third grouting section 1431 and the third guide tube section 1432 are welded at the third angle end 1433 to form the third main leg 143. The first scissors strut 131 is hoisted onto the main structure sheet support frame for positioning. The first scissors strut 131 is located between the second main leg 142 and the third main leg 143. The two sides of the first scissors strut 131 are respectively welded to the second main leg 142 and the third main leg 143 to form the main structure sheet 120.

[0061] In the manufacturing step of the lower large section 100 of the conductor frame, a first temporary support rod is installed between the end of the second main leg 142 and the end of the third main leg 143 for support. The support method of the first temporary support rod can effectively prevent the second main leg 142 and the third main leg 143 from relative displacement and deformation, thereby enhancing the rigidity of the overall structure and reducing the risk of structural instability during construction.

[0062] In the manufacturing step of the lower large section 100 of the conductor frame, when the first angled end 113 is welded to the first grouting section 111, the longitudinal seam of the first conductor section 112 at the first angled end 113 is staggered with the longitudinal seam on the first grouting section 111, when the second angled end 1423 is welded to the second grouting section 1421, the longitudinal seam of the second conductor section 1422 at the second angled end 1423 is staggered with the longitudinal seam on the second grouting section 1421, and when the third angled end 1433 is welded to the third grouting section 1431, the longitudinal seam of the third conductor section 1432 at the third angled end 1433 is staggered with the longitudinal seam on the third grouting section 1431. In this way, it is possible to avoid the overlap of the longitudinal seams, which may lead to a reduction in the overall structural strength.

[0063] The manufacturing steps of the large section 200 of the conductor frame are as follows: the large section 200 of the conductor frame is divided into a general column 210, a bottom plate 220 and a plurality of corbel boxes 230 for manufacturing, a support frame for the large section of the conductor frame is built, the bottom plate 220 is placed on the support frame for the large section of the conductor frame for positioning, the general column 210 is vertically positioned on the bottom plate 220 and welded, and then each corbel box 230 is positioned and welded to the general column 210 and the bottom plate 220 to assemble the large section 200 of the conductor frame, wherein each corbel box 230 is circumferentially spaced and arranged on the outer periphery of the general column 210.

[0064] In the embodiment of the present application, three corbel boxes 230 are provided.

[0065] In addition, in the manufacturing steps of the large section 200 of the catheter frame, after the general column 210 is manufactured, the fan flange 240 is welded on the top of the general column 210, and then the general column 210 is installed on the bottom plate 220.

[0066] Steps for establishing a reference control network: In the steps of making the lower large section 100 of the conductor frame and the steps of making the upper large section 200 of the conductor frame, reflective sheets are set at the respective reference measurement positions of the lower large section 100 of the conductor frame and the upper large section 200 of the conductor frame according to the reference measurement positions, and the measurement point of the reference measurement position is set at the center of the reflective sheet.

[0067] The general assembly steps are as follows: constructing a first base 301, a second base 302 and a third base 303 in a triangular distribution on the ground, vertically hoisting the first main leg 110 on the first base 301, and vertically hoisting the main structure sheet 120 on the second base 302 and the third base 303. After the first main leg 110 and the main structure sheet 120 are hoisted in place, the first main leg 110 and the second main leg 142 are connected by the second scissors brace 132, and the first main leg 110 and the third main leg 143 are connected by the third scissors brace 133 to assemble the lower large section 100 of the jacket; then hoisting the upper large section 200 of the jacket, horizontally fixing the bottom plate 220 of the upper large section 200 of the jacket on the top of the first main leg 110, the second main leg 142 and the third main leg 143 to assemble a three-pile jacket.

[0068] The present application manufactures the lower large section 100 of the conductor frame and the upper large section 200 of the conductor frame respectively, and then assembles the lower large section 100 of the conductor frame and the upper large section 200 of the conductor frame into a three-pile conductor frame. This construction method reduces high-altitude welding operations.

[0069] In the previous construction process of the horizontal three-pile conductor rack, the overall structure is prone to large deviations after the three-pile conductor is transported to the site, and the overall turning operation is required during the horizontal construction process. A set of three-pile conductor racks has a large overall weight and is difficult to turn over. After turning over, part of the structure often needs to be modified due to changes in the stress state. Moreover, the overall construction has been completed, and the modification is difficult, which slows down the construction progress. The vertical three-pile conductor rack of this application eliminates the overall turning operation and reduces the problems of inaccurate positioning, equipment failure, and uneven structural stress.

[0070] Vertical hoisting installation has higher accuracy and requires less floor space during the construction process compared to horizontal construction. In addition, vertical construction can better reflect the construction situation compared to horizontal construction.

[0071] After the upper section 200 of the conductor frame is hoisted and connected with the lower section 100 of the conductor frame, the horizontality, verticality and height of the upper section 200 of the conductor frame and the lower section 100 of the conductor frame are measured. After the measurement is qualified, the butt weld at the joint of the upper section 200 of the conductor frame and the lower section 100 of the conductor frame is subjected to penetration treatment and ultrasonic testing.

[0072] By measuring the horizontality and verticality, the docking accuracy of the large section 200 on the conductor frame and the large section 200 on the conductor frame is ensured, the structural stress concentration caused by installation deviation is avoided, and the stability and safety of the overall structure are improved. Measuring the height can ensure that the overall size of the three-pile conductor frame meets the design requirements. The full penetration welding treatment of the closing mouth can ensure the strength and quality of the weld and enhance the integrity of the structure. The use of ultrasonic testing for non-destructive testing of the weld can timely discover possible defects inside the weld (such as pores, slag inclusions, unfusion, etc.), ensure the welding quality, and improve the reliability and service life of the structure.

[0073] Among them, in the general assembly step, a total station is used to detect the position of the measurement points on each reflector, and the measured data is imported into the benchmark model. The theoretical data of the benchmark model is compared with the measured data on site, and the installation position is dynamically adjusted according to the difference between the theoretical data and the measured data.

[0074] The present application uses a total station to measure the deviation between the actual value and the theoretical value during the lifting process according to the reference measurement position, and makes timely adjustments if the deviation is too large. The application also comprehensively considers the inspection requirements of the main structure sheet 120, the scissors support member, and the joint between the upper section 200 of the conductor frame and the lower section 100 of the conductor frame to improve the installation accuracy.

[0075] Specific, combined Fig.12As shown in Table 1, the measurement dimensions of the first main leg 110 in the present application are D1, D2, D3, D4, D5, D6, and H1. Therefore, during the manufacturing stage of the first main leg 110, the two ends of these measurement dimensions to be detected are reference measurement positions, and reflectors are respectively set at the reference measurement positions corresponding to D1, D2, D3, D4, D5, D6, and H1.

[0076] Table 1 Measurement dimensions of the first main leg

[0077] Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark D1 34640 0～+10 D4 8444 0～+6 D2 8556 0～+6 D5 26235 0～+6 D3 26159 0～+6 D6 34605 0～+10 H1 1115 ±3

[0078] Combination Fig.13 As shown in Table 2, the measurement dimensions of the main structure sheet 120 in the present application are D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, and D21. Therefore, in the production stage of the main structure sheet 120, the two ends of these measurement dimensions to be detected are reference measurement positions, and reflective sheets are respectively set at the reference measurement positions corresponding to D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, and D21.

[0079] Table 2 Measurement dimensions of the main structural sheet

[0080] Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark D7 17007 ±6 D15 26025 ±6 D8 8504 ±3 D16 673 ±1 D9 8504 ±3 D17 11904 ±3 D10 26025 ±6 D18 13458 ±3 D11 673 ±1 D19 161 ±1 D12 11904 ±3 D20 11500 ±3 D13 13458 ±3 D21 11500 ±3 D14 161 ±1

[0081] Combination Fig.14 , Fig.15 , Fig.16 , Fig.17 As shown in Table 3, the measured dimensions during the overall lifting process of the upper large section 200 and the lower large section 100 of the conductor frame are A1, A2, A3, A4, A5, A6, H2, H3, H4, H5, H6, and H7. Therefore, in the production stage of the upper large section 200 and the lower large section 100 of the conductor frame, the two ends of these measured dimensions to be detected are reference measurement positions, and reflectors are respectively set at the reference measurement positions corresponding to A1, A2, A3, A4, A5, A6, H2, H3, H4, H5, H6, and H7.

[0082] Table 3 Measurement dimensions of the upper and lower sections of the jacket

[0083] Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark Measuring dimensions Theoretical value (mm) Allowable deviation (mm) Measured value (mm) Remark A1 23000 ±6 H2 41500 ±10 A2 23000 ±6 H3 34550 ±6 A3 23000 ±6 H4 34550 ±6 A4 17008 ±6 H5 41500 ±10 A5 17008 ±6 H6 41500 ±10 A6 17008 ±6 H7 34550 ±6 Fan flange horizontality 0 ≤3 Floor levelness 0 ≤3

[0084] When the deviation between the actual value and the theoretical value measured in the lifting process by the total station is adjusted according to the reference measurement position, the hand hoist hanging points are pre-set at the positions where the reflectors are set on the upper section 200 of the conductor frame and the lower section 100 of the conductor frame. Then, based on the comparison results of the total station measurement data and the reference model, the direction and displacement of each position to be adjusted are determined. On the component to be adjusted, two hand hoists are symmetrically arranged along the adjustment direction. The fixed end of the hand hoist is anchored on a temporary bracket or an adjacent component, and the movable end of the hand hoist is connected to the hanging point on the component to be adjusted. When the displacement to be adjusted is greater than 50mm, the hand hoists in multiple directions should be operated synchronously. The principle of small step feeding should be adopted during adjustment, and the displacement should not exceed 10mm each time.

[0085] In order to ensure stable lifting, in some embodiments, refer to Figure 5 , Figure 6 as well as Fig.10 The method for vertically constructing a three-pile conductor frame also includes a general assembly inner liner tooling arrangement step: vertically hoisting a first support bracket 401, a second support bracket 402 and a third support bracket 403 in a triangular area defined by a first base 301, a second base 302 and a third base 303, the first support bracket 401, the second support bracket 402 and the third support bracket 403 are distributed in a triangular shape, the first support bracket 401, the second support bracket 402 and the third support bracket 403 are sequentially connected by a cross beam to form a whole, a first platform is installed on the top of the first support bracket 401, and a second platform is installed on the top of the second support bracket 402 and the third support bracket 403, the first platform supports the first main leg 110, and the second platform supports the main structure sheet 120.

[0086] The first support bracket 401, the second support bracket 402 and the third support bracket 403 are distributed in a triangular shape to form a stable triangular support structure, which provides support during the process of hoisting the first main leg 110 and the main structure sheet 120. After the first main leg 110 and the main structure sheet 120 are constructed, the first support bracket 401, the second support bracket 402 and the third support bracket 403 as well as the first platform and the second platform can be directly dismantled.

[0087] Reference Fig.11In the manufacturing steps of the lower section 100 of the conductor frame, fixed steel pads are installed on the inner side of the top of the second main leg 142 and the inner side of the top of the third main leg 143 respectively, and the two fixed steel pads extend from the grooves at the top of the second main leg 142 and the top of the third main leg 143 respectively. An adjusting steel pad 1434 is installed on the inner side of the top of the first main leg 110, and the adjusting steel pad 1434 is temporarily fixed by spot welding. The adjusting steel pad 1434 extends from the groove at the top of the first main leg 110, and a plurality of adjusting rod pieces 1435 are arranged in the middle of the adjusting steel pad 1434. After the lower section 100 of the conductor frame is assembled, the horizontality of the upper end of the adjusting steel pad 1434 is measured, and then the adjusting steel pad 1434 is trimmed to control the horizontality of the upper end of the adjusting steel pad 1434 and the upper end of each fixed steel pad within 1 mm.

[0088] The large section 200 of the conductor frame is hoisted, and the bottom plate 220 of the large section 200 of the conductor frame falls on the adjusting steel washer 1434 and two fixed steel washer cylinders. The fan flange 240 of the large section 200 of the conductor frame is leveled, and the adjusting steel washer 1434 is separated from the spot welding position on the inner side of the top of the first main leg 110. Then, the height of the adjusting steel washer 1434 is adjusted by adjusting the rod piece 1435 so that the upper end of the adjusting steel washer 1434 is against the bottom of the bottom plate 220 of the large section 200 of the conductor frame, and the adjusting steel washer 1434 is welded and fixed to the first main leg 110.

[0089] The bottom plate 220 of the large section 200 on the conductor rack is fixed to the groove position at the top of the first main leg 110, the groove position at the top of the second main leg 142, and the groove position at the top of the third main leg 143 by positioning welding, and then the hook for lifting the large section 200 on the conductor rack is released to complete the butt welds between the bottom plate 220 of the large section 200 on the conductor rack and the groove position at the top of the first main leg 110, the groove position at the top of the second main leg 142, and the groove position at the top of the third main leg 143.

[0090] The welds between the large section 200 of the jacket and the first main leg 110, the second main leg 142 and the third main leg 143 are single-sided fillet welds, which require a steel gasket to be fully welded on one side. In this application, the fixed steel gasket cylinder and the adjustable steel gasket cylinder 1434 are used as steel gaskets, and the steel gasket needs to fit with the bottom plate 220 of the large section 200 of the jacket. The first leveling can be performed before hoisting the large section 200 of the jacket. However, when hoisting the large section 200 of the jacket, since the fan flange 240 needs to be leveled, after leveling, since the horizontality of the fan flange 240 of the bottom plate 220 of the large section 200 of the jacket is inconsistent, the bottom surface level of the bottom plate 220 of the large section 200 of the jacket cannot fit with the fixed steel gasket cylinder and the adjustable steel gasket cylinder 1434. If fixed steel gasket cylinders are used, it is impossible to ensure that all steel gasket cylinders fit with the bottom plate 220 of the large section 200 of the jacket. In this embodiment, after the large section 200 on the conductor frame is leveled, the adjustable steel washer cylinder 1434 can be abutted against the bottom of the bottom plate 220 of the large section 200 on the conductor frame by adjusting the height, so that both the fixed steel washer cylinder and the adjustable steel washer cylinder 1434 can be abutted against the bottom of the bottom plate 220, and can be used as a steel liner for single-sided full welding.

[0091] In some embodiments, there are at least three tack welds between the top bevel of the first main leg 110, the top bevel of the second main leg 142, and the top bevel of the third main leg 143 and the bottom plate 220 of the large section 200 of the conductor frame, each tack weld is at least 200 mm, the weld thickness is at least 30 mm, and the tack welds are evenly arranged.

[0092] More than three positioning welds provide multi-point support, which significantly increases the stability of the connection between the first main leg 110, the second main leg 142 and the third main leg 143 and the base plate 220. The evenly arranged positioning welds make the force more uniform and avoid stress concentration. The minimum welding length of 200 mm ensures sufficient weld area, and the weld thickness requirement of 30 mm ensures welding strength.

[0093] In some embodiments, the first scissors strut 131, the second scissors strut 132 and the third scissors strut 133 all include an upper fork and a lower fork. When the main structure sheet 120 is assembled, the upper fork of the first scissors strut 131 is first hoisted to the upper part between the second main leg 142 and the third main leg 143, and then the lower fork of the first scissors strut 131 is hoisted to the lower part between the second main leg 142 and the third main leg 143.

[0094] By first installing the upper fork for positioning, the relative position between the second main leg 142 and the third main leg 143 can be ensured to be accurate, providing a reliable reference for the subsequent installation of the lower fork.

[0095] Reference Figure 7 , Figure 8In some embodiments, when the lower section 100 of the catheter frame is assembled, the upper fork of the second scissors strut 132 is first hoisted to the upper part between the first main leg 110 and the second main leg 142, and the upper fork of the third scissors strut 133 is hoisted to the upper part between the first main leg 110 and the third main leg 143; then the lower fork of the second scissors strut 132 is hoisted to the lower part between the first main leg 110 and the second main leg 142, and the lower fork of the third scissors strut 133 is hoisted to the lower part between the first main leg 110 and the third main leg 143.

[0096] After the upper fork is installed and fixed first, a stable support point is formed, making the installation of the lower fork easier and safer.

[0097] This top-down installation sequence avoids the complexity of operating two forks at the same time. After the upper fork is positioned, it provides a relatively stable working environment for construction workers, reduces construction risks, and a reasonable construction sequence reduces the workload of repeated adjustments, which can speed up the overall installation progress.

[0098] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A method for vertically constructing a three-pile conductor frame, characterized in that: include: The steps of manufacturing the lower section of the conductor frame are as follows: the lower section of the conductor frame is divided into a first main leg, a scissors brace component and a main structure sheet for manufacturing; the first scissors brace, the second scissors brace and the third scissors brace are manufactured, and the scissors brace component includes the second scissors brace and the third scissors brace; the second main leg and the third main leg are manufactured, and the first scissors brace is installed between the second main leg and the third main leg and fixed by welding to assemble the main structure sheet; The steps of manufacturing the upper section of the conductor frame are as follows: the upper section of the conductor frame is divided into a general column, a bottom plate and a plurality of corbel boxes for manufacturing, a support frame for the upper section of the conductor frame is built, the bottom plate is placed on the support frame for the upper section of the conductor frame for positioning, the general column is vertically positioned on the bottom plate for welding, and then each of the corbel boxes is positioned and welded to the general column and the bottom plate to assemble the upper section of the conductor frame, wherein each of the corbel boxes is circumferentially spaced and arranged on the outer periphery of the general column; Step of establishing a reference control network: in the step of manufacturing the lower large section of the conductor frame and the step of manufacturing the upper large section of the conductor frame, according to the reference measurement position, reflective sheets are respectively set at each reference measurement position of the lower large section of the conductor frame and the upper large section of the conductor frame, and the measurement point of the reference measurement position is set at the center of the reflective sheet; General assembly steps: constructing a first base, a second base and a third base in a triangular distribution on the ground, vertically hoisting the first main leg on the first base, and vertically hoisting the main structure sheet on the second base and the third base. After the first main leg and the main structure sheet are hoisted in place, the first main leg and the second main leg are connected by the second scissors brace, and the first main leg and the third main leg are connected by the third scissors brace to assemble the lower large section of the jacket; then hoisting the upper large section of the jacket, horizontally fixing the bottom plate of the upper large section of the jacket on the top of the first main leg, the second main leg and the third main leg to assemble a three-pile jacket; Among them, in the general assembly step, a total station is used to detect the position of the measurement points on each of the reflectors, and the measured data is imported into the benchmark model, and the theoretical data of the benchmark model is compared with the measured data on site, and the installation position is dynamically adjusted according to the difference between the theoretical data and the measured data.

2. The method for vertically constructing a three-pile conductor frame according to claim 1, characterized in that: The steps of making the lower large section of the conductor frame include: building a first main leg support frame, making a first grouting section and a first conductor section, the lower end of the first conductor section is a first angle end connected to the first grouting section, the first grouting section and the first conductor section are respectively hoisted to the first main leg support frame for positioning, and after positioning, the first grouting section and the first conductor section are welded at the first angle end position to assemble the first main leg; building a scissors strut support frame, and making the first scissors strut, the second scissors strut and the third scissors strut on the scissors strut support frame; building a main structure sheet support frame, making a second grouting section, a second conductor section, a third grouting section and a third conductor section, the lower end of the second conductor section is a second angle end connected to the second grouting section, The lower end of the third guide tube section is the third angle end connected to the third grouting section. The second grouting section, the second guide tube section, the third grouting section and the third guide tube section are hoisted onto the main structure sheet support frame for positioning. After positioning, the second grouting section and the second guide tube section are welded at the second angle end position to assemble the second main leg. The third grouting section and the third guide tube section are welded at the third angle end position to assemble the third main leg. The first scissors support is hoisted onto the main structure sheet support frame for positioning. The first scissors support is located between the second main leg and the third main leg. The two sides of the first scissors support are respectively welded to the second main leg and the third main leg to assemble the main structure sheet.

3. The method for vertically constructing a three-pile conductor frame according to claim 2, characterized in that: In the step of manufacturing the lower large section of the conductor frame, when the first angled end is welded to the first grouting section, the longitudinal seam of the first conductor section located at the first angled end is staggered with the longitudinal seam on the first grouting section, when the second angled end is welded to the second grouting section, the longitudinal seam of the second conductor section located at the second angled end is staggered with the longitudinal seam on the second grouting section, and when the third angled end is welded to the third grouting section, the longitudinal seam of the third conductor section located at the third angled end is staggered with the longitudinal seam on the third grouting section.

4. The method for vertically constructing a three-pile conductor frame according to claim 2, characterized in that: In the step of manufacturing the lower large section of the conductor frame, a first temporary support rod is installed between the end of the second main leg and the end of the third main leg for support; in the step of manufacturing the lower large section of the conductor frame, a second temporary support rod is installed at the fork of the first scissors strut, the fork of the second scissors strut and the fork of the third scissors strut for support.

5. The method for vertically constructing a three-pile jacket according to any one of claims 1 to 4, characterized in that: In the large-section manufacturing step of the conduit frame, after the general column is manufactured, a fan flange is welded on the top of the general column, and then the general column is installed on the base plate.

6. The method for vertically constructing a three-pile jacket according to claim 5, characterized in that: In the general assembly step, after the upper section of the conductor frame is hoisted to butt joint with the lower section of the conductor frame, the horizontality, verticality and height of the upper section of the conductor frame and the lower section of the conductor frame are measured. After the measurement is qualified, the butt weld at the joint of the upper section of the conductor frame and the lower section of the conductor frame is subjected to penetration treatment and ultrasonic testing.

7. The method for vertically constructing a three-pile conductor frame according to claim 5, characterized in that: In the manufacturing steps of the lower section of the conductor frame, fixed steel pads are installed on the inner side of the top of the second main leg and the inner side of the top of the third main leg respectively, and the two fixed steel pads extend from the grooves at the top of the second main leg and the top of the third main leg respectively. An adjustable steel pad is installed on the inner side of the top of the first main leg, and the adjustable steel pad is temporarily fixed by spot welding. The adjustable steel pad extends from the groove at the top of the first main leg, and a number of adjusting rods are arranged in the middle of the adjustable steel pad. After the lower section of the conductor frame is assembled, the horizontality of the upper end of the adjustable steel pad is measured, and then the adjustable steel pad is trimmed to control the horizontality of the upper end of the adjustable steel pad with the upper end of each fixed steel pad within 1 mm. The upper section of the conductor frame is hoisted, and the bottom plate of the upper section of the conductor frame falls on the adjustable steel pad. The fan flange of the large section of the conductor frame is leveled on the cylinder and the two fixed steel pad cylinders, the adjusting steel pad cylinder is separated from the spot welding position on the inner side of the top of the first main leg, and then the height of the adjusting steel pad cylinder is adjusted by the adjusting rod sheet so that the upper end of the adjusting steel pad cylinder is abutted against the bottom of the bottom plate of the large section of the conductor frame, and the adjusting steel pad cylinder is welded and fixed to the first main leg; the bottom plate of the large section of the conductor frame is fixed to the groove position of the top of the first main leg, the groove position of the top of the second main leg and the groove position of the top of the third main leg by positioning welding, and then the hook for lifting the large section of the conductor frame is released to complete the butt welds between the bottom plate of the large section of the conductor frame and the groove position of the top of the first main leg, the groove position of the top of the second main leg and the groove position of the top of the third main leg.

8. The method for vertically constructing a three-pile jacket according to claim 7, characterized in that: There are at least three tack welds between the top groove of the first main leg, the top groove of the second main leg and the top groove of the third main leg and the bottom plate of the large section of the conductor rack, each tack weld is at least 200 mm, the weld thickness is at least 30 mm, and the tack welds are evenly arranged.

9. The method for vertically constructing a three-pile jacket according to any one of claims 1 to 4, characterized in that: The first scissors strut, the second scissors strut and the third scissors strut all include an upper fork and a lower fork. When the main structure sheet is assembled, the upper fork of the first scissors strut is first hoisted to the upper part between the second main leg and the third main leg, and then the lower fork of the first scissors strut is hoisted to the lower part between the second main leg and the third main leg.

10. The method for vertically constructing a three-pile jacket according to claim 9, characterized in that: When the lower section of the catheter frame is assembled, firstly, the upper fork of the second scissors strut is hoisted to the upper part between the first main leg and the second main leg, and the upper fork of the third scissors strut is hoisted to the upper part between the first main leg and the third main leg; then, the lower fork of the second scissors strut is hoisted to the lower part between the first main leg and the second main leg, and the lower fork of the third scissors strut is hoisted to the lower part between the first main leg and the third main leg.

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