JP2021160039A - Method of laying working surface table structure on earth floor - Google Patents

Abstract

To provide a technique for laying a working surface table structure which shortens a working time and suppresses a working cost, and to provide the working surface table structure which has a simple constitution.SOLUTION: A method of laying a working surface table structure on an earth floor includes a measurement process S1 of measuring a horizontal state on the surface of the earth floor based on a horizontally elongated standard, on a plurality of measurement positions of the earth floor, a calculation process S2 of calculating an interval between the earth floor and the standard on the plurality of measurement points, a preparation process S4 of preparing an interval member which has a thickness corresponding to the calculated interval, a formation process S5 of attaching an interval member onto positions corresponding to the respective measurement positions, of a surface table for forming a pane for working of an article to be worked in the working surface table structure and forming the working surface table structure and a laying process S6 of laying the working surface table structure on the earth floor so that the interval member is set up on the corresponding measurement positions.SELECTED DRAWING: Figure 5

Description

The present invention relates to a method of laying a working surface plate structure in the soil.

Conventionally, there is known a work surface plate structure used during processing work of a work piece, such as integrating separate parts by welding (see, for example, Patent Document 1).

JP-A-2009-248268

The machining work performed on the upper surface of the surface plate of the work surface plate structure is a work for welding separate parts (workpieces) to each other, for example, to process the final product, and the machining of the parts to be machined. Is required to have high accuracy. Therefore, the upper surface of the surface plate is required to be horizontal as a whole.

For example, conventionally, a work surface plate structure 100 as shown in FIG. 9 is known. The work surface plate structure 100 includes a metal floor plate 110 and a pedestal 120 that supports the floor plate 110. The gantry 120 has, for example, a frame 130 formed of H-shaped steel and channel steel, and a height adjusting device 140.

The frame 130 is formed in a grid pattern having a rectangular shape in a plan view. The height adjusting device 140 is attached to the frame 130. The height adjusting device 140 is formed so as to be expandable and contractible in the height direction, and adjusts the position of the frame 130 in the vertical direction. That is, the distance between the floor plate 110 of the work surface plate structure 100 and the soil floor G on which the work surface plate structure 100 is laid is adjusted in the height direction.

Here, the frame 130 needs to be installed horizontally. Therefore, in order to perform leveling in advance in the soil floor G, the foundation where the height adjustment device 140 is installed is excavated, for example, and concrete is cast to form a horizontally adjusted installation surface in the soil floor G. Construction is required. Normally, the soil floor G was made of concrete, and it took time for the foundation work. Further, it is necessary to install the gantry 120 on the soil floor G after the foundation work, place the floor plate 110 on the gantry 120, and level it by the height adjusting device 140, which increases the work process and the work cost.

Therefore, the present invention has been made in view of the above problems, and provides a technique for laying a work surface plate structure in which the work time is short and the work cost is suppressed, and at the same time, a work surface plate structure having a simple structure is provided. The purpose is to provide.

In order to solve the above problems, the present invention is a method of laying a work surface plate structure in the soil, and the horizontal state on the surface of the soil is measured at a plurality of measurement positions in the soil based on a horizontally extending standard. A measurement step to be measured, a calculation step of calculating the distance between the soil floor and the reference at the plurality of measurement positions, a preparation step of preparing an interval member having a thickness corresponding to the calculated interval, and the above-mentioned In the work surface plate structure, the forming step of forming the work surface plate structure by attaching the interval member to the position corresponding to each of the measurement positions of the surface plate forming the plane for processing the work piece, and the above-mentioned It is characterized by including a laying step of laying the work surface plate structure in the soil so that the interval member is installed at the corresponding measurement position.

Further, it is a method of additionally laying the surface plate alongside the existing existing work surface plate structure in which the workpiece is processed on the upper surface, and the standard is the surface plate in the existing work surface plate structure. The interval may be the interval between the position where the horizontal state is measured in the soil and the lower surface facing the soil in the surface plate of the existing work surface plate structure.

Further, it further includes a determination step of determining whether or not the position where the horizontal state is measured in the soil is closer to the upper surface than the lower surface based on the interval calculated in the calculation step. May be good.

In the determination step, when there is a measurement position closer to the upper surface than the lower surface at the plurality of measurement positions where the horizontal state is measured in the soil, the measurement position is between the soil and the lower surface. It may include an adjustment step of scraping the portion of the soil at the measurement position so as to be within the range of.

Further, the surface plate in the work surface plate structure has a rectangular shape in a plan view, and the measurement in the measurement step is performed in the corresponding region of the soil where the work surface plate structure is laid. It may be carried out at four points corresponding to one corner and a place corresponding to the intersection of diagonal lines.

Further, in order to solve the above problems, the present invention is a method of laying a work platen structure horizontally in the soil, and the height position of the soil with respect to a predetermined horizontal reference plane at a plurality of measurement positions of the soil. A measurement step for measuring the above, a specific step for specifying the highest measurement position with respect to the reference plane from the height position measured in the measurement step, and the soil floor having the highest measurement value with respect to the reference plane. With the measurement position of the above as a reference position, a calculation step of calculating the interval between the reference position and the measurement position other than the reference position, and preparation for preparing an interval member having a thickness corresponding to the calculated interval. The process and the forming step of forming the working platen structure by attaching the interval members to the positions corresponding to the measurement positions in the platen of the working platen structure for forming the plane for processing the workpiece. It is characterized by including a laying step of laying the work platen structure in the soil so that the interval member is installed at the corresponding measurement position.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a technique for laying a work surface plate structure in which the work time is short and the work cost is suppressed, and at the same time, it is possible to provide a work surface plate structure having a simple structure.

It is a schematic partial perspective view which shows the working surface plate structure. It is a top view of the work surface plate structure of one of a plurality of work surface plate structures laid on the ground. It is a figure which shows the measurement position in the soil when it is assumed that a plurality of work surface plate structures are arranged side by side with an existing work surface plate structure, and is additionally laid. It is the schematic which looked at the working surface plate structure from the X direction in FIG. It is a flow chart which shows the work process which concerns on the 1st method of laying the work surface plate structure in the soil. It is the schematic for demonstrating the calculation method of the interval in 1st method. It is a flow chart which shows the work process which concerns on the 2nd method of laying the work surface plate structure in the soil. It is the schematic for demonstrating the calculation method of the interval in the 2nd method. It is a schematic side view which shows the conventional work surface plate structure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The work surface plate structure 1 according to the present embodiment is laid directly on the concrete soil floor (floor surface) G. In the work surface plate structure 1, a work of integrating a plurality of workpieces by, for example, welding is performed. The work surface plate structure 1 contributes to suppress distortion between workpieces due to welding as much as possible.

FIG. 1 is a schematic partial perspective view showing a working surface plate structure 1. The work surface plate structure 1 includes a floor plate (surface plate) 10 and a plurality of liners (interval members) 20. The floor plate 10 is formed of, for example, an iron plate having a rectangular shape in a plan view. The floor plate 10 has a lower surface 11 facing the soil floor G and an upper surface 12 facing the side facing the soil floor G. The processing work of the work piece is carried out on the upper surface 12 of the floor plate 10. The liner 20 is attached to the lower surface 11 of the floor plate 10. The liner 20 is made of a square or substantially square steel material in a plan view.

FIG. 2 is a plan view of the work surface plate structure 1 of one of the plurality of work surface plate structures 1 laid on the ground G. The liner 20 is attached to the floor plate 10 at five locations. Four liners 20 are attached to the four corners of the floor plate 10, and one liner 20 is attached to the intersection of the diagonal lines of the floor plate 10.

Each liner 20 has a predetermined thickness D between the surface in contact with the soil floor G and the surface in contact with the lower surface 11 of the floor plate 10. Each liner 20 has the same thickness D or different thicknesses D and D_n from each other, depending on the distance between the surface of the soil G and the lower surface 11 of the floor plate 10 (see FIG. 4).

For example, when it is desired to expand the work area by the existing work surface plate structure 100, a plurality of work surface plate structures 1 can be laid in the soil floor G adjacent to the existing existing work surface plate structure 100. In order to improve the welding accuracy between the parts to be processed, it is necessary to lay the work surface plate structure 1 in the soil floor G so that the upper surface 12 of the floor plate 10 is horizontal. Further, the work surface plate structure 1 is horizontally flush with the upper surface 111 of the floor plate 110 of the existing work surface plate structure 100 on the upper surface 12 of the floor plate 10.

However, the surface GF of the soil floor G made of concrete is not formed by being leveled, and there may be non-landing. When the work surface plate structure 1 is laid on the soil floor G in the state where the non-land is present, it may not be possible to secure the horizontal state on the upper surface 12.

On the other hand, in the existing work surface plate structure 100, it has already been leveled. When the work surface plate structure 1 is laid in the soil floor G as a new work surface plate structure, the existing work surface plate structure 100 can be used as a reference for ensuring the horizontal state in the work surface plate structure 1.

The first method according to the present embodiment in which the work surface plate structure 1 for processing the workpiece on the upper surface 12 is laid in the soil floor G is a method of laying the work surface plate structure 1 horizontally in the soil floor G. In the measurement step S1 for measuring the horizontal state of the surface GF of the soil G on the surface GF of the soil G at a plurality of measurement positions MP ,,, MP_n based on the horizontally extending reference 110, and at the plurality of measurement positions MP ,,, MP_n. , A calculation step S2 for calculating the interval MS between the soil G and the reference 110, and a preparation step S4 for preparing an interval member (hereinafter, also referred to as “liner”) 20 having a thickness D corresponding to the calculated interval MS. , The space member 20 is placed at a position corresponding to each of the measurement positions MP ,,, and MP_n of the surface plate (hereinafter, also referred to as "laying plate") 10 that forms a flat surface for processing the workpiece in the work surface plate structure 1. A forming step S5 of attaching and forming the work surface plate structure 1, and a laying step S6 of laying the work surface plate structure 1 in the soil G so that the interval member 20 is installed at the corresponding measurement position MP ,,, MP_n. including. Hereinafter, a method of laying the work surface plate structure 1 in the soil floor G will be described.

In the present embodiment, the work surface plate structure 1 is additionally laid alongside the existing existing work surface plate structure 100 that processes the work piece on the upper surface 111. In the first method, the floor plate 110 of the existing work surface plate structure 100 is a reference extending horizontally, and the upper surface 111 of the floor plate 110 is a reference surface. The upper surface 111 is a surface of the floor plate 110 of the existing work surface plate structure 100 facing the side opposite to the soil floor G (see FIG. 6). The lower surface 112 of the floor plate 110 facing the soil floor G extends parallel to the upper surface 111. The upper surface 111 and the lower surface 112 extend horizontally or substantially horizontally.

FIG. 3 is a diagram showing the measurement position MP in the soil floor G when it is assumed that a plurality of work surface plate structures 1 are arranged side by side on the existing work surface plate structure 100 and additionally laid. At each measurement position MP, the level (horizontal) state with respect to the surface GF in the soil G in the range where each work surface plate structure 1 is installed is measured based on the floor plate 110 which is a reference extending horizontally.

In the area of the soil G where one work surface plate structure 1 is laid, the measurement positions MP in the soil G are five. There are four points corresponding to the four corners and one place corresponding to the intersection where the diagonal lines intersect in the work surface plate structure 1 having a square or substantially square view in a plan view. The measurement position MP is not limited to five points.

FIG. 4 is a schematic view of the working surface plate structure 1 viewed from the X direction in FIG. There is unevenness on the surface GF in the concrete soil floor G. Therefore, the height position of the surface GF of the soil floor G may be different from the predetermined reference.

FIG. 5 is a flow chart showing a work process of laying the work surface plate structure 1 in the soil floor G. FIG. 6 is a schematic diagram for explaining a method of calculating the interval MS. First, in comparison with the horizontal state of the floor plate 10 of the existing work surface plate structure 100 extending horizontally, the horizontal state of the surface GF of the soil floor G is measured at a plurality of measurement positions MP ,,, MP_n (measurement step S1 (measurement step S1 (measurement step S1). Step S1)).

First, in step S1, the level (horizontal) state at the surface GF of the soil G adjacent to the existing work surface plate structure 100 on which the work surface plate structure 1 is laid is measured. The level state of the soil G is measured by comparing the values measured at all the measurement position MPs for each work surface plate structure 1. Each measurement position MP is given a unique recognition number such as, for example, measurement positions MP_1, MP_2, MP_3, and MP_n.

The method for measuring the level of the soil G is not particularly limited, but for example, a predetermined surveying instrument 30 installed on the upper surface 111 of the existing work surface plate structure 100 and a surveying rod 40 can be used. A surveying rod 40 is installed at each predetermined measurement position MP ,,, MP_n. The surveying instrument 30 measures the survey value V (V> 0) written on the surveying rod 40 in the horizontal direction. For example, if the survey values V _{1 to 3} (see FIG. 6) show different values, it can be seen that the state of the soil floor G on the surface GF is not in the horizontal state.

Next, at a plurality of measurement positions MP ,,, MP_n, the distance MS between the soil floor G and the floor plate 10 in the vertical direction is calculated (calculation step S2 (step S2)). The interval MS is the interval between the measurement position MP ,,, MP_n in which the horizontal state is measured in the soil G, and the lower surface 112 facing the soil G in the floor plate 110 of the existing work surface plate structure 100.

Here, the interval MS is calculated by the following formula.
MS = V- (H + T)
“V” is a value described on the surveying rod 40, and indicates the distance from the surface GF of the soil floor G at each measuring position MP to the position measured by the surveying instrument 30. The survey value V increases upward from the soil G side of the survey rod 40. For example, in FIG. 6, the survey value V at the measurement position MP_1 is larger than the survey value V at the measurement position MP_3. “H” is the height of the survey by the surveying instrument 30 and is a known value. Further, "T" is a plate thickness of the floor plate 10 and is a known value.

In this way, the interval MS is obtained at each measurement position MP ,,, MP_n. After obtaining the interval MS at all the measurement positions MP ,,, and MP_n of each work surface plate structure 1, it is determined whether or not the value of the interval MS is within the allowable range (MS ≧ 0) (determination step S3 (step S3). )).

When the value of the interval MS is within the permissible range (YES), a liner 20 having a thickness D corresponding to the interval MS calculated at each measurement position MP ,,, MP_n is prepared (preparation step S4 (step S4)). ).

If the value of the interval MS_n at the predetermined measurement position MP_n is MS_n <0 (NO), the soil floor G at the measurement position MP_n has a portion that exceeds the position of the lower surface 11 of the floor plate 10 in the height direction. Will exist. That is, the measurement position MP_n at which MS_n <0 is located on the upper surface 111 side of the lower surface 112 of the floor plate 110 in the existing work surface plate structure 100, and exceeds the position of the lower surface 112 upward.

The soil floor G at the measurement position MP_n, which is closer to the upper surface 111 than the lower surface 112, comes into contact with the lower surface 11 of the floor plate 10 of the newly installed work surface plate structure 1. Therefore, the portion of the soil G at the measurement position MP_n is scraped so that the measurement position MP_n is located at the same position as the lower surface 112 of the floor plate 110 of the existing work surface plate structure 100 or on the side of the soil G from the lower surface 112 (adjustment step (step). S31)).

Next, the prepared liner 20 is attached to the floor plate 10 of each work surface plate structure 1 by welding to form the work surface plate structure 1 (formation step S5 (step S5)). The liner 20 is welded to the position of the lower surface 11 of the floor plate 10 corresponding to each of the five measurement points MP_1 to 5. That is, when the work surface plate structure 1 is laid in the soil G, a liner 20 having a thickness D corresponding to the interval MS_1 is attached at the position of the floor plate 10 corresponding to the measurement point MP_1. By attaching five liners 20 to one working surface plate structure 1, the working surface plate structure 1 is formed.

The above steps S1 to S4 are performed on the required number of working surface plate structures 1.

Next, each work surface plate structure 1 is laid in the soil floor G (laying step S6 (step S6)). The work surface plate structure 1 is lifted by a crane or the like so that the liner 20 faces the soil floor G. The work surface plate structure 1 is set to the soil floor G so that the suspended work surface plate structure 1 is installed at the corresponding measurement position MP by each of the liners 20 having the thickness D corresponding to the interval MS at each measurement position MP. take down. The work in steps S5 and S6 may be performed in parallel.

After repeating step S6 and installing all the work surface plate structures 1 in the soil floor G, it is determined, for example, whether the level (horizontal state) is secured on the upper surface 12 of the floor plate 10 of each work surface plate structure 1. (Confirmation step S7 (step S7)). Here, when the level of the floor plate 10 of the work surface plate structure 1 is within the allowable range (for example, ± 3 mm) (YES), this state is regarded as a “horizontal state”, and each work surface plate structure 1 The floor plates 10 of the above, the work platen structure 1 adjacent to the existing work surface plate structure 100, and the floor plate 110 of the existing work surface plate structure 100 are appropriately fixed by welding or the like (fixing step S8 (step S8)). The welded portion is leveled by pressing, for example, a grinder or the like from the side of the upper surface 12 of the floor plate 10.

On the other hand, when the level is not within the permissible range (NO), the corresponding work surface plate structure 1 is readjusted (readjustment step S71 (step S71)). For example, in step S71, the work surface plate structure 1 is readjusted by adjusting the thickness D of the liner 20 by increasing or decreasing it. Further, it is confirmed whether the liner 20 is attached to the floor plate 10 of the work surface plate structure 1 at an appropriate position, and the correspondence between the work surface plate structure 1 and the measurement position MP of the soil G is confirmed.

After that, the work surface plate structure 1 is installed again in the soil floor G, and it is reconfirmed whether the horizontal state is secured on the upper surface 12 of the floor plate 10 of the work surface plate structure 1 (reconfirmation step S72 (step S72)). In the reconfirmation, when the level of the floor plate 10 of the work surface plate structure 1 is within the allowable range (for example, ± 3 mm) (YES), the floor plates 10 of each work surface plate structure 1 and the existing work surface plate The work surface plate structure 1 adjacent to the structure 100 and the floor plate 110 of the existing work surface plate structure 100 are appropriately fixed by welding or the like (fixing step S8 (step S8)). The welded portion is leveled by pressing, for example, a grinder or the like from the side of the upper surface 12 of the floor plate 10. On the other hand, when the level is not within the permissible range again (NO), the working surface plate structure 1 is readjusted (step S71).

Note that step S7 may be performed every time the work surface plate structure 1 is laid in the soil floor G.

By fixing the work surface plate structures 1 to each other, the work of laying the work surface plate structure 1 in the soil floor G is completed.

Since the work surface plate structure 1 is additionally installed in the soil G by the above method, the level is measured over a wide range of the soil G and the liner 20 is prepared corresponding to the interval MS, so that the work surface plate structure In 1, it is possible to secure a more accurate horizontal state.

By using the liner 20 corresponding to the different surface GF states of the soil G, the foundation work and the installation of the gantry 120, which were required for the conventional existing work surface plate structure 100, are no longer necessary, and the work surface plate structure 1 It is possible to reduce the work load and shorten the construction period. Further, the cost for the work surface plate structure 1 and the laying work can be reduced as compared with the conventional existing work surface plate structure 100.

Further, for example, since it is not necessary to process the concrete soil floor G, which was required when laying the existing work surface plate structure 100, in principle when laying the work surface plate structure 1, the work surface plate structure 1 is not required. The work load for laying the structure 1 can be significantly reduced.

If processing is required for the soil floor G, the location of the soil floor G that needs to be processed can be easily found from the interval MS based on the measurement position MP.

Further, since a plurality of measurement position MPs are regularly set, a more accurate horizontal state can be ensured.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and includes all aspects included in the concept of the present invention and the scope of claims. In addition, each configuration may be selectively combined as appropriate so as to achieve at least a part of the above-mentioned problems and effects. Further, for example, the shape, material, arrangement, size, etc. of each component in the above embodiment can be appropriately changed depending on the specific usage mode of the present invention.

In the above method of laying the work surface plate structure, the interval MS is calculated at the measurement position MP based on the existing work surface plate structure 100, but the surface where the horizontal state is secured is the soil G or the periphery of the soil G. If it can be secured in, the work surface plate structure 1 can be laid by the other (second) method.

For example, in the second method of laying the work platen structure 1 for processing the work piece on the upper surface 12 in the soil G, the height of the soil G with respect to the predetermined horizontal reference surface GF1 at the plurality of measurement positions MP of the soil G With respect to the measurement step S1'for measuring the vertical position, the specific step S2'for specifying the _{highest measurement position MP max} with respect to the reference plane GF1 from the height position measured in the measurement step S1', and the reference plane GF1. With the measurement position MP _max of the soil G having the highest survey value V _max as the reference position MP _Ref , it has a thickness D corresponding to the distance MS'between the reference surface GF1 and the measurement position MP _{else other than this reference position MP Ref.} In the preparatory step S3'for preparing the liner 20 and the floor plate 10 of the work platen structure 1 for forming a flat surface for processing the workpiece, the liner 20 is attached at a position corresponding to the measurement position MP to form a work platen structure. The forming step S4'for forming 1 and the laying step S5'for laying the working platen structure 1 in the soil G so that the liner 20 is installed at the corresponding measurement position MP are included.

In the first method, the levelness of the newly installed work surface plate structure 1 was determined based on the existing horizontal surface plate structure 100. On the other hand, in the second method, a reference horizontal plane is obtained from the soil floor G.

In the second method, a leveled portion is secured in the soil floor G. The level state of the soil G is measured at the measurement position MP within the range in which the work surface plate structure 1 is laid, with the portion having the plane extending in the horizontal direction as the reference plane GF1 (measurement step S1'(step S1')).

Next, from the values measured at all the measurement positions MP, MP_n corresponding to all the working surface plate structures 1, the height position (highest point) farthest from the reference plane GF1 upward in the height direction. _{The measurement position MP max} of the soil floor G in the above is specified (specific step S2'(step S2')). This measurement position MP _max becomes the reference position MP _Ref in the second method. In the second method, the reference position MP _Ref of the soil floor G is set as an apex, and the floor plate 10 is placed on a (virtual) horizontal plane including this apex.

Then, the distance between the reference position _{MP ref} measurement position _{MP max} in earthen G, and the reference position _{MP ref,} and the measurement position _{MP the else} other than the reference position _{MP ref} with the highest survey value _{V max} to the reference surface GF1 Is calculated (calculation step S3'(step S3')). In other words, the survey value _{V the else} in surveying value _{V max} and the other measurement position _{MP the else} at the measurement position _{MP max} of earthen G in the highest point, at each measurement position _{MP the else,} the lower surface 11 and earthen G of decking 10 installed The distance MS'from the surface GF of the surface is calculated.

Here, each interval MS'is calculated by the following equation.
MS'= _Velse- V _max
" _Velse " is a value described on the surveying rod 40, and is a quantity indicating the distance from the surface GF of the soil G at the _{measuring position MPelse to the position measured by the surveying instrument 30, and "V max} " is a value. , The value described on the surveying rod 40, and the distance from the surface GF of the soil G to the position measured by the surveying instrument 30 at _{the measurement position MP max} of the soil G, which is the highest of the soil G with respect to the reference plane GF1. The amount shown.

_{This interval MS'follows} then corresponds to the thickness D of the liner 20 corresponding to each measurement position MPelse. A liner 20 having a thickness D is prepared based on the interval MS'(preparation step S4'(step S4')). Then, the prepared liner 20 is attached to the floor plate 10 of each work surface plate structure 1 by welding to form the work surface plate structure 1 (formation step S5'(step S5')). Next, each work surface plate structure 1 is laid in the soil floor G (laying step S6'(step S6')). In addition, step S5'and step S6'correspond to step 5 and step 6 in the first method, respectively.

After repeating step S6'and installing all the work surface plate structures 1 in the soil floor G, it is determined, for example, whether the level (horizontal state) is secured on the upper surface 12 of the floor plate 10 of each work surface plate structure 1. Confirm with a device (confirmation step S7'(step S7')). Here, when the level of the floor plate 10 of the work surface plate structure 1 is within the allowable range (for example, ± 3 mm) (YES), this state is regarded as a “horizontal state”, and each work surface plate structure 1 The floor plates 10 of the above, and the work platen structure 1 adjacent to the existing work surface plate structure 100 and the floor plate 110 of the existing work surface plate structure 100 are appropriately fixed by welding or the like (fixing step S8'(step S8')). The welded portion is leveled by pressing, for example, a grinder or the like from the side of the upper surface 12 of the floor plate 10.

On the other hand, when the level is not within the permissible range (NO), the corresponding work surface plate structure 1 is readjusted (readjustment step S71'(step S71')). For example, in step S71', the work surface plate structure 1 is readjusted by adjusting the thickness D of the liner 20 by increasing or decreasing it. Further, it is confirmed whether the liner 20 is attached to the floor plate 10 of the work surface plate structure 1 at an appropriate position, and the correspondence between the work surface plate structure 1 and the measurement position MP of the soil G is confirmed.

After that, the work surface plate structure 1 is installed again in the soil floor G, and it is reconfirmed whether the level is secured on the upper surface 12 of the floor plate 10 of the work surface plate structure 1 (reconfirmation step S72'(step S72')). .. In the reconfirmation, when the level of the floor plate 10 of the work surface plate structure 1 is within the allowable range (for example, ± 3 mm) (YES), the floor plates 10 of each work surface plate structure 1 and the existing work surface plate The work surface plate structure 1 adjacent to the structure 100 and the floor plate 110 of the existing work surface plate structure 100 are appropriately fixed by welding or the like (fixing step S8'(step S8')). On the other hand, when the level is not within the allowable range again (NO), the working surface plate structure 1 is readjusted (step S71').

Note that step S7'may be performed every time the work surface plate structure 1 is laid in the soil floor G.

By fixing the work surface plate structures 1 to each other, the work of laying the work surface plate structure 1 in the soil floor G is completed.

In the second method, the floor plate 10 can be placed by utilizing the soil floor G at the highest position with respect to the reference plane GF1.

1 Work surface plate structure 10 Floor plate (surface plate)
20 liner (interval member)
100 Existing work surface plate structure

Claims (6)

It is a method of laying a work surface plate structure in the soil.
A measurement step of measuring the horizontal state on the surface of the soil at a plurality of measurement positions of the soil based on a horizontally extending standard, and a measurement step of measuring the horizontal state on the surface of the soil.
A calculation step of calculating the distance between the soil floor and the reference at the plurality of measurement positions, and
A preparatory step for preparing an interval member having a thickness corresponding to the calculated interval, and
In the work surface plate structure, a forming step of attaching the interval member to a position corresponding to each of the measurement positions of the surface plate forming a flat surface for processing the work piece to form the work surface plate structure.
The laying step of laying the work surface plate structure in the soil so that the interval member is installed at the corresponding measurement position, and
A method of laying a work surface plate structure in the soil, which is characterized by including. It is a method of additionally laying the surface plate side by side with the existing existing work surface plate structure in which the work piece is processed on the upper surface, and the standard is the surface plate in the existing work surface plate structure, and the interval. The method according to claim 1, wherein is the distance between the position where the horizontal state is measured in the soil and the lower surface facing the soil in the surface plate of the existing work surface plate structure. It is characterized by further including a determination step of determining whether or not the position where the horizontal state is measured in the soil is closer to the upper surface than the lower surface based on the interval calculated in the calculation step. The method according to claim 2. In the determination step, when there is a measurement position closer to the upper surface than the lower surface at the plurality of measurement positions where the horizontal state is measured in the soil, the measurement position is between the soil and the lower surface. The method according to claim 3, further comprising an adjustment step of scraping the portion of the soil at the measurement position so as to be within the range of. The surface plate in the working surface plate structure has a rectangular shape in a plan view.
The measurement in the measurement step is carried out in the corresponding area of the soil where the work surface plate structure is laid, at four points corresponding to the four corners of the work surface plate structure and at the points corresponding to the intersections of the diagonal lines. The method according to any one of claims 1 to 4, wherein the method is characterized by the above. It is a method of laying the work surface plate structure horizontally in the soil.
A measurement step of measuring the height position of the soil with respect to a predetermined horizontal reference plane at a plurality of measurement positions of the soil,
A specific step of specifying the highest measurement position with respect to the reference plane from the height position measured in the measurement step, and
A calculation step of calculating the distance between the reference position and the measurement position other than the reference position, with the measurement position of the soil having the highest measured value with respect to the reference surface as the reference position.
A preparatory step for preparing an interval member having a thickness corresponding to the calculated interval, and
In the surface plate of the work surface plate structure for forming a flat surface for processing the work piece, the forming step of attaching the interval member to a position corresponding to the measurement position to form the work surface plate structure, and
The laying step of laying the work surface plate structure in the soil so that the interval member is installed at the corresponding measurement position, and
A method of laying a work surface plate structure horizontally, which is characterized by including.

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