JP2015127501A - Unit construction method for solar panel - Google Patents

Unit construction method for solar panel Download PDF

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JP2015127501A
JP2015127501A JP2014240649A JP2014240649A JP2015127501A JP 2015127501 A JP2015127501 A JP 2015127501A JP 2014240649 A JP2014240649 A JP 2014240649A JP 2014240649 A JP2014240649 A JP 2014240649A JP 2015127501 A JP2015127501 A JP 2015127501A
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Prior art keywords
solar
unit
screw
pile
construction
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JP6304551B2 (en
JP2015127501A5 (en
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理 木村
Osamu Kimura
理 木村
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株式会社フジワラ
Fujiwara:Kk
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F24S25/617Elements driven into the ground, e.g. anchor-piles; Foundations for supporting elements; Connectors for connecting supporting structures to the ground or to flat horizontal surfaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/12Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/47Mountings or tracking

Abstract

PROBLEM TO BE SOLVED: To develop a driving method of a screw pile excellent in crushing performance such as installation, and a unit construction method for a solar panel of using the screw pile as a foundation member, for the purpose of developing a construction method capable of constructing the solar panel capable of shortening a construction period by improving productivity, not only on flat land but also on slope land, undulated land and land of the soft ground.SOLUTION: The present invention is attained by the unit construction method for the solar panel composed of a first process of driving the screw pile by a leader type pile driver of having R in a grounding part, a second process of assembling a solar unit by fitting a module in a frame by assembling the solar unit frame and a stand in advance in a factory or a yard, a third process of moving on the screw pile by hanging up the solar unit by a crane and a fourth process of joining and installing the stand of the solar unit to and on the screw pile by a flange.

Description

  The present invention relates to a pile driving machine and a unit construction method using the same, and more particularly to a pile driving machine using screw piles and a solar power generation using the pile driving machine, particularly a unit construction method for solar panels such as mega solar.

  When installing solar power generation, especially mega solar power generation facilities, in the past, a large number of concrete foundations (solar panel mount foundations) were created at equal intervals on the vast land to be installed. The method of installing solar panels on top is taken. (For example, refer to Patent Document 10). A concrete formwork is used for the construction of the concrete foundation.

  However, the construction of concrete foundations used in the past was a so-called on-site assembly concrete formwork, where a wooden or steel formwork was produced and assembled one by one on site. In addition, a lot of time and labor are required for dismantling, and there is a problem that a huge cost is required, and productivity is poor and schedule adjustment becomes difficult. In addition, since the concrete molds are assembled individually one by one at the site, there is a problem that level adjustment between the concrete molds is necessary and it is difficult to achieve the level accuracy of the foundation for the solar panel mount. In addition, a large number of workers are required for on-site work, increasing the risk of occupational accidents.

  In order to solve these problems, it is possible to shorten the work period with a small number of people by improving productivity, to easily adjust the schedule, to reduce the risk of industrial accidents, and to increase the level accuracy of the foundation for each solar panel mount A basic form for a solar panel frame and a basic construction method for a solar panel frame have been proposed (see, for example, Patent Document 3).

  Further, in order to reduce the weight and improve the strength, there has been proposed a solar panel support structure in which a bracing frame is disposed on a support frame that is suspended from a base (see, for example, Patent Document 4). However, with such a support structure, the work period cannot be shortened with a small number of people.

  Various solar (solar cell module) mount systems that are installed on a flat place have been proposed (for example, Patent Document 11). This can simplify the construction work of the pedestal, but for the purpose of installing it on a flat ground, instead of the construction foundation and foundation, it was made by connecting the struts and cross members with joint fittings. Since construction is omitted, there is a problem with stability. Of course, it cannot be installed on slopes.

  On the other hand, a solar mount using a hydraulic vibration pile driver has also been proposed (Non-Patent Documents 1 and 2). In the method of driving the H steel column disclosed in Non-Patent Documents 1 and 2 into the ground, vertical adjustment is not easy and installation on a flat ground is a requirement. In addition, there is a method of excavating the ground using an auger screw and digging it down to a predetermined depth, then pulling up the screw and inserting a core material such as H steel into the drilled hole, but the process becomes complicated and undulations It is difficult to employ in a land with lots of land, or a workshop where sufficient space cannot be secured.

  Non-Patent Document 3 proposes a ground screw mount in which a ground screw and a mount are combined, but the method of driving the screw vertically is not clear and cannot be established. In addition, there is no description about a method for driving a screw pile efficiently on a rough ground as in the case of a flat ground.

  A method using a leader has also been proposed as a pile driving method (Patent Document 6). Here, the leader is generally a pile driving hammer or auger guide or a cross, and the leader is generally a pile hammer or auger guide or a cross so that the screw pile can be accurately driven at a predetermined angle. A guide that can regulate the driving direction.

  A leader is attached to the tip of the crane boom, and the lower end of the leader and the crane body are connected by a catch hawk. This is called a suspended pile driver and a basic mechanism of a crawler crane by two backsteries and a leader blanket. What is instructed in is called a 3-point supported pile driving tower. In particular, the latter leader is advantageous for construction with severe construction conditions and slanting, but it is not suitable for construction sites where sufficient space is not available due to the complexity of three-point support and support. There has been a need for a leader that has improved such shortcomings.

  In addition, Non-Patent Document 4 only describes that a ground screw pile driving method as a solar power generation system foundation, and that it is possible even by human power, is there any accurate screw pile driving method corresponding to the ground condition? There is no description.

  Patent Document 7 discloses a rotary drive device that is suspended up and down by a leader, a drill for excavation that is connected to the lower end side central portion of the rotary drive device, and an outer peripheral portion at the lower end side of the rotary drive device. A pile driving method comprising an inner casing that is connected to and rotated and an outer casing that is fitted on the outer peripheral surface side of the inner casing and is driven to rotate integrally with the inner casing is described. In this method, first, drilling is performed to a predetermined depth with a drill, the inner casing and the drill for drilling are taken out from the drilling hole, and the pile is then inserted into the outer casing of the drilling hole. There is a problem that a complicated process must be performed until the pile driving is completed.

  Further, Patent Document 8 relates to a pile driving device used in pile driving work for strengthening a foundation, particularly in excavation work, and a base machine having a boom and a movable base machine, and the boom of the base machine. A bracket detachably provided at the tip, a leader connected to the boom of the base machine via the bracket, a reaction force plate at the tip, and a liftable along the leader An earth auger and a valve box that is provided in the leader and operates a hydraulic drive unit such as the earth auger, and the bracket is supported to be swingable in the front-rear direction and the left-right direction with respect to the boom. It is characterized by the fact that the reader has a complicated structure. In particular, there was a problem where the construction site was not enough.

  In Patent Document 9, the screw pile can be built without destroying the soil or the ground in the ground, and after the build, the strong strength in the vertical direction inherent to the screw pile can be reliably obtained. The purpose of the present invention is to provide a method and an apparatus for installing a screw pile, and by using a screw guide to change the rotational force of the screw pile into a propulsive force, A screw pile erection method characterized in that the rotation speed is interlocked. Such a method is not practical for land with a lot of gravel, land for which a screw must be installed while breaking a buried object such as a site of a disposal site.

  Further, as a screw for cold regions, a metal pile for fixing the support frame of the solar panel on the ground, an embedded main body embedded in the ground, and an attachment main body attached to the support frame side, And a heat insulating material interposed between the mounting main body and the embedded main body, and a connecting member that integrates the embedded main body and the mounting main body while interposing the heat insulating material. A solar panel has been proposed (Patent Document 5). However, the problem of waste generation at the time of removal, such as using cement milk, has not been solved.

JP 2013-194365 A JP 2013-204227 A JP 2013-199795 A JP 2013-177769 A Japanese Patent No. 5232336 JP-A-5-222726 Japanese Patent Laid-Open No. 8-246452 Japanese Patent Laid-Open No. 2004-183312 JP 2005-246331 A JP 2011-202479 A JP 2013-133668 A

H system Holly Co., Ltd. issued in September 2013 Solar power generation stand Holly Co., Ltd. issued in October 2013 Grand Screw Mount issued by PV Solar House Association Photovoltaic Power System Basic Cleaner Grand Screw Seino Construction Co., Ltd. (Sun Sun Mate) Website

  This invention aims at providing the installation construction method of the solar panel which uses a screw pile as a foundation member and does not choose the place to install. In other words, it solves the problems of conventional pile installation methods, solves the problem of not generating industrial waste when dismantling is necessary, and develops a construction method that can also be constructed on undulating land Aimed at that. In other words, by improving productivity, it is possible to shorten the work period with a small number of people, easily adjust the schedule, reduce the risk of work accidents, and improve the level accuracy of each solar panel mounting foundation. The purpose of this project was to develop a construction method that can be constructed not only on rough land but also on sloped land and undulating land. In addition, in view of the shape of the land to be installed and the buried objects, it is a construction method that can be installed even in land where the work cannot be secured and the operation is difficult, and the screw pile driving method with excellent operating performance, the screw pile as a foundation member The purpose was to develop a unit construction method for solar panels to be used.

  In order to solve the above-described problems, the solar panel unit construction method uses a continuous spiral screw resistance driven into the ground according to claim 1 for 1.5 m or more as a base member.

  The solar panel unit construction method according to claim 1, wherein the grounding part of the leader type pile driving machine for driving the screw resistance according to claim 2 is a surface having R, and has a projection on the surface of the grounding part. It was set as the means comprised by.

  Further, the grounding portion according to claim 3 is a surface having R, and a solar unit frame in advance in the first step, factory, yard or vacant land in which screw resistance is driven by a leader type pile driving machine having a protrusion on the surface of the grounding portion. And the second step of assembling the solar unit by fitting the module into the frame, the third step of lifting the solar unit with a wire and moving it onto the screw pile, the fourth step of joining the screw pile and the solar unit stand, Thereafter, the third step and the fourth step are repeated, and the means constituted by the solar panel unit construction method according to claim 1 or 2 is used.

  Further, the wire for lifting the solar unit according to claim 4 is adjusted by adjusting the length of the wire through an adjustable lifting device, and the height of the lower part of the solar unit gantry is horizontally moved. It was set as the means comprised by the unit construction method for solar panels of 3 description.

  According to the first and second aspects of the invention, operation performance can be ensured even on a land that is undulating and difficult to work with a conventional leader. That is, it is possible to efficiently drive a screw pile for a pedestal vertically and accurately even on a flat land, even on an inclined land, a undulating land, or a land with an embedded object. Moreover, the generation of waste is suppressed.

  Since the solar panel unit construction method according to claim 3 and claim 4 is assembled in advance from a module to a solar panel unit (solar unit) in a factory, a yard or a vacant land, the assembly work on the installation site is simplified. A large number of solar units (including their mounts) can be effectively and efficiently constructed in a short period of time even on terrain where it is difficult to secure a working site adjacent to the installation location such as undulations and slopes.

  Therefore, it is possible to shorten the work period with a small number of people by improving productivity, to easily adjust the schedule, and to reduce the risk of industrial accidents. Moreover, since a solar unit can be assembled with high precision in a factory, a yard or a vacant land, the level accuracy of each solar unit can be increased. At the same time, efficient use of resources and reduction of waste generation can be achieved.

It is an example of the screw pile used for the unit construction method of this invention. It is a figure which shows the operating state of the pile driving | running | working of the leader type pile driving machine which is a surface where a grounding part has R, and has a processus | protrusion on the surface of a grounding part. It is a figure which shows an example of the state (screw pile arrangement | positioning) which driven the screw pile of this invention. It is a figure which shows an example of the process of assembling a solar unit from the frame for solar units, a mount frame, and a module in the factory of the present invention, a yard, or a vacant lot. It is a figure which shows the process which lifts and moves the assembled solar unit with a wire, and joins it to a screw pile. For the sake of explanation, the description of the modules built into the solar unit was omitted. It is a figure which shows the state which joined the mount frame of the solar unit to the upper part of the screw pile with the volt | bolt and the nut. For the sake of explanation, the description of the modules incorporated in the solar unit is omitted. It is a side view of the completed solar. FIG. 7a is a diagram showing a state in which it is installed on a flat ground, and FIG. It is a figure which shows the state of the completed solar. For the sake of explanation, the description of the modules incorporated in the solar unit is omitted. It is a figure which shows the state of an example of the completed solar. FIG. 6 is an enlarged view of the adjustable lifting tool and the adjustable lifting bracket shown in FIG. 5. It is a figure which shows an example which lengthened the mount frame and heightened the position of the solar unit. It is a figure which shows an example which made the position of the solar unit high in the intermediate pillar. It is an example which has arrange | positioned the module to the solar unit. The description of the ground was omitted. It is another example which has arrange | positioned the module to the solar unit. The description of the ground was omitted.

  Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to the drawings. However, the present invention broadly includes the apparatus and the construction method as long as the invention specific matters are provided, and is not limited to the following embodiments.

  The present invention relates to a screw pile driving (pile placement) process, a solar unit assembly process, a solar unit that keeps the lower part of the gantry horizontal and is lifted and moved by an arbitrary inclination, and the joining of the solar unit and the screw pile. It is an invention of a unit construction method for solar panels of a solar system consisting of processes.

  First, the screw pile used for this invention is demonstrated. The screw pile 12 is a pile having a screw portion 1 formed, for example, in a spiral shape from a metal strip, and has a structure formed by adding a steel pipe 4 or the like to the screw portion as necessary. Yes. Fig.1 (a) is an example of a screw pile, FIG.1 (b) is an example of the screw pile of the structure which added the steel pipe to the screw part. The helical structure of the screw pile of the present invention is characterized by being continuous. The driving depth of the screw pile was determined according to the strength of the screw pile after driving.

  The strength of the screw pile after driving in was set according to “support standard for solar cell array support” JISC 8955: 2011 (issued on February 21, 2011 by the Japanese Standards Association). The actual driving depth varies depending on the condition of the site where the screw pile is driven, but the driving depth is determined in consideration of the safety factor (1.15 times) or more from the strength set according to the above criteria. For example, when the required depth is 1.2 m and the required strength is obtained, the driving strength is measured 20% deeper to ensure a safety factor (1.15 times) or more. For example, the above. In order to obtain a stable strength when 1.2 m is the required depth, it is preferable to drive 1.5 m to 1.8 m or more.

  The screw pile driving process of the present invention will be described with reference to FIG. The screw pile 12 is driven using a leader 13 while maintaining the vertical direction. The leader 13 used in the present invention has a grounding portion of the tip 8 having a planar grounding surface 7 having R and a protrusion 6 formed on the surface of the grounding surface at the tip. The number of the protrusions 6 is not particularly limited, but it is preferable that 6 to 16 are formed in a circle or an ellipse, or 10 to 24 are formed in a double circle or a double ellipse. The leader 13 is grounded on the ground 16, the hydraulic speed reducer 10 is rotated, and the screw pile 12 is driven. Since the protrusion 6 formed on the surface of the grounding portion is hard to be firmly inserted into the ground 16 when driven into the ground with ups and downs, the screw pile 12 can be reliably driven vertically. For land with slopes or undulations, it is possible to drive in according to the aforementioned criteria.

  The screw pile 12 is driven at the tip 2 perpendicularly to the ground, and by the action of the screw 1, it has excellent strength in the vertical direction after construction, and is also applied to soft ground such as farmland and landfill can do. FIG. 3 schematically shows the state of the screw pile 12 driven into the ground 16.

   FIG. 4 shows the assembly process of the solar unit. The solar unit can be assembled not in the construction site but in the adjacent construction yard, vacant land, factory, etc. The number of modulars 17 incorporated in the solar unit is arbitrary. In the example of FIG. 4, two modules 17 are incorporated in a small frame unit in the solar unit frame 18, and a total of 16 modules 17 are incorporated in one solar unit frame 18. These 16 solar units are assembled as a unit. It is desirable to adjust the number of modules to be installed in the solar unit according to the land conditions.

  The solar unit includes a solar unit frame 18, a module 17, and a mount 22. The mount 22 and the solar unit frame 18 are connected by a frame 25 and are reinforced by a reinforcing portion 24. In the example of FIG. 4, six frames 25 that connect two small frame units of the solar unit frame 18 to the gantry 22 are supported. The frame 25 and the reinforcing portion 25 are shown in FIG. The number of frames per solar unit, the number of mounts, etc. are adjusted according to the land conditions. Depending on the land conditions, the frame may be omitted.

  FIG. 5 shows a process of lifting the solar unit with a wire and moving it onto the screw pile. In general, the solar panel is inclined and installed in order to receive sunlight efficiently. Therefore, the solar unit is preferably lifted and moved by a wire with an arbitrary inclination. The degree of inclination is adjusted according to the conditions of the land to be installed. FIG. 5 (a) shows a state in which the four parts of the assembled solar unit are fixed with the wires 21 and are lifted by the crane wires 20 through the adjustment type lifting tool 19. Specifically, the inclination of the solar unit frame 18 is maintained, and the lower parts (flange joints) 23 of each gantry are lifted so as to have the same height (horizontal). The joining portion 23 is moved and joined directly above the flange joining portion 3 of the screw pile 12. FIG. 5B shows the process from the side. The adjustment type lifting tool 19 is connected to the wire 20 at the upper part thereof and is connected to the adjustment fitting 26 at both ends thereof. An example of this state is shown in an enlarged manner in FIG.

  A method for adjusting the length of the wire that lifts the solar unit through the adjustable type suspension will be described. FIG. 5 illustrates lifting using a crane. The crane and the adjustment hanging tool 19 are connected by a wire 20. It is this adjustable lifting device 19 that the crane lifts directly with the wire 20. FIG. 10B shows that the adjustable type lifting tool 19 is connected to the two adjustable type hanging brackets 26 at both ends thereof. The adjustable hanging bracket 26 has a function of dividing one wire 21 into a portion 21a and a portion 21b. The hooks 27a and 27b at the end of the wire are hooked on the hook portions 28a and 28b of the solar unit and are lifted by a crane. The shape of this hooking portion is arbitrary, and it is desirable to form it on the solar unit frame. The length of the part 21a and the part 21b of the metal fitting is such that one is long and the other is short. In the example of FIG. 10A, the wire portion 21a near the solar unit frame 22a (the one with the higher height of the frame) is short, and the wire portion 21b near the solar unit frame 22b (the one with the lower height) is long. Adjust so that The degree of adjustment is adjusted at an arbitrary ratio so that the lower part (flange joint) 23 of the solar unit base is horizontal. Further, the difference in height of the solar unit base is the inclination of the module 17. By adjusting the length of the wire, a solar unit having an arbitrary inclination can be easily installed.

  That is, when the adjustment type hanging tool 19 and the adjustment type hanging bracket 26 are used, the crane wire 20 lifts the adjustment type hanging bracket 19, and the wire 21 divided by the adjustment type hanging bracket 26 into an arbitrary ratio is the solar unit. The bottom 23 of the gantry is lifted so that it remains horizontal. Then, the crane moves the solar unit in the air with its gantry lower part 23 kept horizontal. That is, the solar unit base 22 can be fixed to the screw pile 12 with high accuracy by lifting the solar unit while maintaining an arbitrary inclination and horizontally moving the solar unit to the place where the screw pile is disposed. The fixing is performed, for example, by flange-joining the tip 23 of the gantry 22 with the flange joint 3 of the screw pile 12. The process of lifting the solar unit with this wire has an advantage that it can be used for maintenance after solar construction and removal of the solar, for example.

  6 repeats the third step of lifting the solar unit with a wire and moving it onto the screw pile, and the fourth step of joining and installing the screw pile and the solar unit base, and the solar unit base 22 is flanged to the screw pile 12 It is an example which shows the state installed. For the sake of explanation, the description of the module 17 fitted in the solar unit frame 18 is omitted. Moreover, it is the figure which assembled two solar units on description. The number of solar units is arbitrary in design. FIG. 6A shows an example installed on the ground 16. FIG. 6B shows a state in which a solar panel base 22 is joined to the screw pile 12 driven into the ground 16 by a flange joint 23. For example, bolts and nuts are used for joining.

  FIG. 7 is an example of a side view of the completed solar unit. FIG. 7A is a view showing an example of a state where the flat ground 16 is installed, and FIG. In carrying out the construction method of the present invention, a screw pile is driven according to the undulations of the land. It is desirable to adjust the position of the flange joint portion 3 of the screw pile 12 not by the height from the ground but by the altitude. FIG. 7A is an example in which the flat ground 16 is adjusted to the height from the ground, and FIG. 7B is an example in which the ground 16 having undulations is adjusted at an altitude. As shown in FIG. 7B, it is desirable to adjust the length and driving of the screw pile 12 according to the undulation of the land. Moreover, the number of screw piles 12 can be adjusted according to the situation of land. Further, the strength of the solar unit frame 18 is reinforced by connecting the frame 25 with the reinforcing portion 24.

  FIG. 8 is a diagram illustrating an example of a completed solar. For explanation, there are two solar units, and the description of the module 17 incorporated in the solar unit frame 18 is omitted. It is desirable to adjust the configuration of the solar unit according to the conditions of the land where it is installed. FIG. 8A shows the case of the example described in FIG. FIG.8 (b) is an example at the time of increasing the number of screw piles. FIG. 8C illustrates a type in which the reinforcing portion 24 is elongated without providing the frame 25. In FIG. 8C, the solar unit frame 18 is reinforced and held by the reinforcing portion 36, and the intermediate pillar 30 is joined to the mount 22 (not shown in the drawing) and joined by the flange joint portion 34. Furthermore, it is an example which has arrange | positioned the reinforcement part 29 in the shape of a brace. FIG. 9 shows a state of an example of the completed solar corresponding to FIG.

  The length of the gantry 22 can be adjusted to an arbitrary length. FIG. 11A shows an example in which the length of the gantry 22 is increased. The length of the gantry 22 can be a length (height) of 0.5 m to 3 m. When the height is increased, it is preferable to attach a reinforcing portion 29 between the gantry 22. An example in which the length (height) of the gantry 22 is lowered is an example in which the intermediate pillar 30 in FIG. The reinforcing portion 29 can be attached in any manner, but for example, it is effective to attach the reinforcing portion 29 obliquely in a brace shape. FIG. 11A is a diagram when the reinforcing portion 29 is attached obliquely. If the mount 22 is joined to the screw pile 12 by the flange joint parts 23 and 3, the position of the solar unit can be raised to 2.5 to 3.5 m from the ground.

  FIG. 12 shows an example in which the position of the solar unit is raised by the intermediate pillar. It is also possible to adjust the height of the solar unit from the ground by joining the intermediate pillar 30 to the screw pile 12 with the flange joint 3 and the flange joint and further joining the intermediate pillar 30 and the mount 22 with the flange. In this method, the intermediate column 30 is reinforced by the reinforcing portion 29, and then the solar unit is lifted by the wire 21 while the lower portion (flange joint portion) 23 of the gantry is kept horizontal, and the flange joint portion (intermediate portion of the intermediate pillar 30 is intermediate). It is to be flange-joined with the column tip portion 31. In this method, the height of the solar unit from the ground can be adjusted to 2 to 4 m. In this method, since the types of solar units to be assembled can be limited, the process can be simplified as a result.

  When attaching the reinforcement part 29 diagonally, as shown in FIG. It can also be made removable by setting it as the structure which has the attachment tool (hook part etc.) 33 in the front-end | tip of the reinforcement part 29. FIG. The same applies to the case of FIG.

  For example, when installing a solar panel on farmland such as a field, it is preferable to lengthen the gantry and raise the installation position of the solar panel. In this case, by adjusting the length (height) of the intermediate pillar 30, it is possible to cope with the work situation of the farmland. Adjusting the sunlight on the ground with crops in farmland can be achieved by adjusting the number of modules 17. In other words, photovoltaic power generation and farming such as farming can coexist. An example is shown in FIGS. In FIGS. 13 and 14, the description of the land is omitted, and an example of the arrangement of the modules and an example of the installation of the reinforcing material 35 are displayed.

  Next, the effect of the present invention will be described in this embodiment. In general, the pile test differs depending on the soil quality of the ground to be driven, but the following test was performed as an example. The pile driving was tested at a red soil site in Inuzuka, Inashiki City, Ibaraki Prefecture in accordance with “Support Standards for Solar Cell Array Support” JIS C8955: 2011 (issued on February 21, 2011). In the said field, it calculated with the said standard, the safety factor (1.15 time) was considered, and it calculated that the pulling-out strength of 798.68Kgf was required.

  According to the screw pile driving process of the present invention, the screw pile driving depth was changed from 1 m to 4 m. The results are shown in Table 1. Moreover, as conditions close to the actual placement of screw piles, the screw piles were driven into the field at intervals of 3 m and the pull-out strength was measured. The results are shown in Tables 2 and 3.

  In addition, in contrast to the value of 800 Kgf calculated in consideration of the safety factor calculated according to the above standards, Δ is obtained when the measured value is about 750 to 800 Kgf, which is about the calculated value, and 801 to 880 Kgf that exceeds the value taking the safety factor into consideration. The value of 881 Kgf or more, which is 10% higher than the value considering the safety factor, was rated as ◎.

  From the results shown in Table 1, it was confirmed that the driving depth by the leader type pile driving machine used in the process of the present invention is preferably 1.2 m and particularly preferably 1.5 m at this test site.

  From the results of Table 2 and Table 3, it is understood that the pile driving by the leader type pile driving machine used in the process of the present invention can obtain a stable strength when the driving depth is 1.5 m or more at this test site. It was.

  In addition, it was confirmed that the second step, the third step, and the fourth step of the present invention have good workability compared to the conventional method and are effective even in a narrow work place. Moreover, even if the solar unit frame is 2 to 4 m high from the ground, the strength of the screw pile does not change.

  INDUSTRIAL APPLICABILITY The present invention can be used not only for flat land but also for undulating land, other farmland, etc., as a unit method for solar panels for photovoltaic power generation that can suppress the generation of waste and shorten the construction period.

DESCRIPTION OF SYMBOLS 1 Screw part 2 with helical structure 2 Tip part 3 Flange joint part 4 Steel pipe 5 Receiving part 6 Protrusion part 7 Grounding surface 8 which has R Leader tip part 9 Wire binding metal fitting 10 Hydraulic reducer 11 Flange 12 Screw pile 13 Leader 14 -M15 Cabin 16 Ground (Ground)
17 Module 18 Solar unit frame 19 Adjustable lifting device 20 Crane wire 21 Wire 21a Wire part (short part) 21b Wire part (long part)
22 frame 22a frame (height frame) 22b frame (low frame)
23 Lower frame (flange joint)
24 Reinforcement part 25 Frame 26 Adjustable hanging bracket 27 Wire hook 28 Hook part 29 Reinforcement part (barbed)
30 Intermediate column 31 Flange joint (intermediate column tip)
32 Flange joint (lower middle column)
33 Attachment 34 Flange joint 35 Reinforcement material 36 Reinforcement part

Claims (4)

  1.   A unit construction method for solar panels that uses a continuous spiral screw resistance driven into the ground for 1.5m or more as a base member.
  2.   The unit construction method for a solar panel according to claim 1, wherein the grounding part of the leader type pile driving machine for driving the screw is a surface having R, and has a projection on the surface of the grounding part.
  3.   Assembling the solar unit frame and frame in advance in the first step, factory, yard or vacant land, where the grounding part is a surface having R and the screw type is driven by a leader type pile driving machine having protrusions on the surface of the grounding part. The second step of assembling the solar unit fitted into the frame, the third step of lifting the solar unit with a wire and moving it onto the screw pile, the fourth step of joining and installing the screw pile and the solar unit stand, and the third step thereafter 3. The solar panel unit construction method according to claim 1, wherein the fourth step is repeated.
  4.   The solar panel unit according to claim 3, wherein the wire for lifting the solar unit is adjusted by adjusting the length of the wire through an adjustable lifting device, and the height of the lower part of the solar unit base is horizontally aligned. Construction method.
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Publication number Priority date Publication date Assignee Title
CN105384070A (en) * 2015-12-11 2016-03-09 中国一冶集团有限公司 Method for mounting photovoltaic panel
KR101974009B1 (en) * 2018-01-05 2019-04-30 한국남동발전 주식회사 Photovoltaic Structure Device with Foundation Reinforcement and Bearing Capacity Measurement
KR102000103B1 (en) * 2019-04-16 2019-07-15 주식회사 혜민전력 Height adjustment device for solar power plant for soft ground
KR101993819B1 (en) * 2018-01-15 2019-09-30 (주)썬트랙 Supporting device for pv generation structure
US10615738B2 (en) * 2018-04-10 2020-04-07 Barry Sgarrella Photovoltaic solar array support structure

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JPH085159A (en) * 1994-06-24 1996-01-12 Sekisui Chem Co Ltd Solar energy utilizing roof
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CN105384070A (en) * 2015-12-11 2016-03-09 中国一冶集团有限公司 Method for mounting photovoltaic panel
CN105384070B (en) * 2015-12-11 2017-07-21 中国一冶集团有限公司 Photovoltaic method of plate installation
KR101974009B1 (en) * 2018-01-05 2019-04-30 한국남동발전 주식회사 Photovoltaic Structure Device with Foundation Reinforcement and Bearing Capacity Measurement
KR101993819B1 (en) * 2018-01-15 2019-09-30 (주)썬트랙 Supporting device for pv generation structure
US10615738B2 (en) * 2018-04-10 2020-04-07 Barry Sgarrella Photovoltaic solar array support structure
KR102000103B1 (en) * 2019-04-16 2019-07-15 주식회사 혜민전력 Height adjustment device for solar power plant for soft ground

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