JP2004308220A - Retaining wall construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a retaining wall construction method for forming a retaining wall by determining a specific standard, manufacturing the retaining wall of a block unit in a factory according to the standard, arranging a column suited to the standard in a place for forming the retaining wall, and stacking retaining wall blocks on the column. <P>SOLUTION: This retaining wall construction method uses a steel frame column 20 composed of a horizontal part 21 fixed to a concrete foundation and a rising part 22 for supporting the retaining wall, a rectangular solid-shaped concrete retaining wall block 10 having a plurality of through-holes 12 filled in the rising part of the column, a gauge 30 for the horizontal part for setting a distance constant between the horizontal parts of the adjacent column, a gauge 40 for the rising part for setting a distance constant between the rising parts of the adjacent column, and a vertical measuring tool 50 for vertically erecting the rising part of the column; and erects the retaining wall E on the concrete foundation D. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for constructing a concrete retaining wall.
[0002]
[Prior art]
As a conventional method for constructing concrete retaining walls, vertical bars are embedded in advance when constructing a concrete foundation, and horizontal bars are connected to the vertical bars protruding above the concrete foundation by means such as binding with wires, and vertical and horizontal reinforcing bars are used. Construct this rebar, formwork, that is, surround with a panel such as a wooden board, connect and fix each panel with separate bolts, pour concrete into the panel, remove the panel after the concrete solidifies, A method of forming a retaining wall is employed.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned conventional construction method takes a lot of trouble in formwork such as installation and removal of panels when forming a retaining wall, and the construction period such as when it is impossible to cast concrete in rainy weather is delayed. It has drawbacks, and therefore has the drawback of high construction costs. In addition, irregularities may be formed on the ground of the retaining wall after the panel is removed.
[0004]
In order to solve the above-mentioned problems, the present inventor has conducted intensive studies, has set a certain standard, manufactures a retaining wall in block units at a factory according to the standard, and has a place where the retaining wall is formed. Invented a retaining wall construction method in which a supporting column was installed in accordance with the standard, and a retaining wall was formed by stacking a retaining wall block on the supporting column.
[0005]
[Means for Solving the Problems]
The retaining wall construction method according to the present invention includes a steel column including a horizontal portion fixed to a concrete foundation and an upright portion supporting the retaining wall, and a plurality of through holes that can be fitted into the upright portion of the post. Retaining wall block in the shape of a rectangular parallelepiped, a gauge for the horizontal part to keep the distance between the horizontal parts of the adjacent pillars constant, and a standing part to keep the distance between the standing parts of the adjacent pillars constant The present invention is characterized in that a retaining wall is erected on a concrete foundation by the following procedure using a gauge and a vertical measuring tool for erecting an upright portion of a column.
[0006]
1. Before the foundation is formed, the horizontal part of each pillar is kept at a fixed distance by the gauge for horizontal part, the upright part of each pillar is kept at a certain distance by the gauge for standing part, and the standing part of each pillar is vertical The columns are installed so that they are vertical by the measuring tool, and the uprights of the columns are aligned with the through holes of the retaining wall block.
[0007]
2. The foundation is formed by casting concrete so that the horizontal part of each column is buried.
[0008]
3. When each pillar is fixed by the foundation, the through hole of the retaining wall block is filled in the upright part of each pillar, and the retaining wall block is stacked to form a retaining wall.
[0009]
4. Concrete is poured into the through hole of the retaining wall block to fix the retaining wall block to the upright portion of the column.
[0010]
According to the above-mentioned construction method, the pillars are fixed to the foundation at regular intervals by the horizontal portion gauge and the upright portion gauge, and the upright portion is fixed by the vertical measuring tool so that the upright portion becomes vertical. Since the through-hole of the retaining wall block fits the provided standing portion, the retaining wall is formed by filling the standing wall block with the retaining wall block.
[0011]
Further, as the horizontal portion gauge used in the above retaining wall construction method, a horizontal bar of a predetermined length and a fitting member fitted to the horizontal portion of the column with a predetermined interval on the lower surface of the horizontal bar were configured. The horizontal parts of the adjacent columns may be arranged at a constant interval by using a member and attaching and fitting the fitting member to the horizontal parts of the adjacent columns.
[0012]
With the use of the above-described horizontal portion gauge, if the fitting member is fitted into the horizontal portion of the adjacent column, the horizontal portion of the adjacent column can be accurately arranged at a fixed distance.
[0013]
Further, as the standing portion gauge used in the above retaining wall construction method, a gauge body including a horizontal shaft portion having a predetermined length and engaging portions disposed at both ends of the horizontal shaft portion, and a top portion of the standing portion of the pillar. A detachable arrangement is used, and an engagement receiving member that can be engaged with the engagement portion of the gauge body is used, and the engagement reception member is attached to the upright portion of the adjacent column, respectively. By extending the gauge body between the engagement receiving members of the columns, the upright portions of the adjacent columns may be erected at regular intervals.
[0014]
If the above-described gauge for the upright portion is used, the engagement receiving members are attached to the upright portions of the adjacent columns, and the engagement portions of the gauge main body are engaged with the engagement receiving members. When the gauge main body is bridged over, the upright portions of the adjacent columns can be accurately arranged at a fixed distance.
[0015]
Furthermore, as a vertical measuring tool used in the above-mentioned retaining wall construction method, a down swing device that hangs down along the upright portion of each column, and the down swing device when the upright portion of the column is vertically erected. The vertical measuring device may be used to confirm that the upright portions of the respective columns are vertically erected, using an index portion indicated by the device.
[0016]
With the use of the above-described vertical measuring tool, it is possible to immediately determine whether or not the upright portion of the column is vertically erected.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a retaining wall block, FIG. 2 is a partially omitted perspective view of a support, FIG. 3 is a perspective view of a gauge for a horizontal portion, FIG. 4 is a perspective view of a gauge for an upright portion, and FIGS. FIG. 15 is a schematic perspective view showing a procedure, and FIG. 15 is a reference perspective view showing a construction state.
[0018]
[Apparatus used for the retaining wall construction method of the present invention]
In FIG. 1, reference numeral 10 denotes a concrete retaining wall block. The retaining wall block 10 has a reinforcing bar 11 therein, and has through holes 12a, 12b, 12c, and 12d formed in the vertical direction in the figure. The through-holes 12a, 12b, 12c, and 12d are to be inserted into the upright portions of the columns to be described later for erecting the retaining wall block 10, and are provided at equal intervals, and the through-holes 12a at both ends are provided. , 12d have a semi-circular cross section, and have a circular cross section by adjoining retaining wall blocks 10 of the same shape. The entire retaining wall block 10 is manufactured by molding or the like in a factory or the like, and is used after being transferred to a construction site or the like. Therefore, mass production and stockpiling are possible, and the wall surface 13 is smooth and flat. It is easy to finish, and it is also possible to give decorations such as a cosmetic finish.
[0019]
In FIG. 2, reference numeral 20 denotes a column made of steel, which includes a horizontal portion 21 and an upright portion 22. The horizontal portion 21 is a portion that is fixed to the concrete foundation when the concrete foundation is prepared in preparation for the later-described retaining wall construction, and the upright portion 22 is a portion that supports the retaining wall. The support member 20 is provided with a support member 23 at an intersection of the horizontal portion 21 and the upright portion 22 in order to maintain the strength. The column 20 is formed by joining or bending a so-called C channel having a U-shaped cross section at right angles to maintain strength, and a reinforcing member 24 having a T-shaped cross section is used to further increase the strength. Are provided along the inside along the shape of.
[0020]
In FIG. 3, reference numeral 30 denotes a horizontal portion gauge. The horizontal portion gauge 30 is used to make the horizontal portions 21 of the adjacent columns parallel and keep the interval constant when a plurality of the columns 20 are erected in parallel. belongs to. The horizontal portion gauge 30 includes a horizontal bar 31 and fitting members 32 and 33 provided at two places on the lower surface of the horizontal bar 31. The distance between the fitting member 32 and the fitting member 33 is a distance between adjacent columns, and this distance is a distance between adjacent through holes of the retaining wall block 10. The fitting members 32 and 33 are respectively composed of holding pieces 32a, 32b, 33a and 33b spaced from each other so as to correspond to the thickness of the horizontal portion 21 of the column 20, and one of the columns 20 is formed by the holding pieces 32a and 32b. The horizontal portion 21 is sandwiched, and the horizontal portions 21 of the adjacent columns 20 are sandwiched by the holding pieces 33a and 33b, and the horizontal portion gauge 30 is mounted so as to span the horizontal portion 21 of the column 20.
[0021]
If the horizontal part gauge 30 is used, the horizontal parts 21 of the adjacent columns 20 can be accurately maintained at a fixed distance only by fitting the fitting members 32 and 33 into the horizontal parts 21 of the adjacent columns 20. It is simple and extremely convenient because it can be arranged at a different location. If the horizontal portion gauge 30 is not removed and concrete is cast as described later to form a foundation together with the horizontal portion 21 of the column 20, the horizontal portion gauge 30 can be used not only when concrete is cast. This has the effect of stabilizing the entire column after the concrete is fixed.
[0022]
In FIG. 4, reference numeral 40 denotes an upright portion gauge. The upright portion gauge 40 is used when the plurality of columns 20 are erected in parallel so that the upright portions 22 of adjacent columns are parallel and the interval between them is constant. belongs to. The upright portion gauge 40 includes a gauge body 41 and engagement receiving members 42 and 43. The gauge body 41 is composed of a horizontal shaft portion 41a having a predetermined length and hanging curved plate-shaped engaging portions 41b and 41c arranged at both ends of the horizontal shaft portion 41a. The engagement receiving members 42 and 43 are removably arranged on the top 22a of the upright portion 22 of the support column, and are formed in a hollow cylindrical shape with a lower opening, and their diameters fit in the top 22a of the upright portion 22. Engagement receiving portions 42a and 43a with which the engaging portions 41b and 41c are engaged are provided on the side surfaces thereof. Then, the engagement receiving members 42 and 43 are mounted on the top portions 22a of the upright portions 22 of the adjacent columns, respectively, and the engagement of the gauge body 41 with the engagement receiving portions 42a and 43a of the engagement receiving members 42 and 43 of the columns. By engaging the joints 41b and 41c, the gauge main body 41 can be bridged between the engagement receiving members of the columns. As a result, the upright portions 22 of the adjacent columns are erected at regular intervals. The upright portion gauge 40 is related to the horizontal portion gauge 30 described above. In the former, the upright portions 22 of the columns are parallel and the interval is constant, and in the latter, the horizontal portions 21 of the columns are parallel and the interval is parallel. Since the distance is set to be constant, the distance between the columns set by the horizontal section gauge 30 is the same as the distance between the columns set by the upright section gauge 40, and the upright section gauge 40 and the horizontal section The utility gauge 30 is designed in such a way.
[0023]
The use of the above-mentioned upright gauge 40 is simple and extremely convenient because the uprights of the adjacent columns can be accurately arranged at a fixed distance. Further, since the upright-portion gauge 40 is detachable from the upright portion 22 of the column, the upright-portion gauge 40 can be removed, so that the retaining wall block 10 is connected to the upright portion 22 of the column as described later. It has the advantage of not getting in the way when it fits in
[0024]
As described above, the horizontal portion gauge 30 and the upright portion gauge 40 are for erection of the columns 20 in parallel at a constant interval, and the upright portions 22 of the columns 20 are provided in the retaining wall blocks 10. The retaining wall block 10 is vertically erected by being inserted into the through hole of the above, so that the retaining wall block 10, the column 20, the horizontal portion gauge 30, and the standing portion gauge 40 are all configured based on a certain standard. If the size of the retaining wall block 10 changes, the standard changes, and the design of the column 20, the horizontal portion gauge 30, and the upright portion gauge 40 changes based on the standard. For example, if the size of the retaining wall block 10 is large and thick, the support column 20 is designed to be thick and long, and the retaining wall block 10 is designed to have a large through hole diameter, And the numbers are increased, and the design of the horizontal portion gauge 30 and the upright portion gauge 40 is also changed in accordance with the interval between the through holes of the retaining wall block 10 and the thickness of the column 20.
[0025]
In addition, reference numeral 50 shown in FIG. 4 denotes a vertical measuring tool for vertically setting the upright portion 22 of the column 20. The vertical measuring device 50 includes a down swing device 51 and an index portion 54. The down swing device 51 is provided with a down swing support member 52 provided on a side surface of the engagement receiving member 43 and a down hanging from the down swing support member 52. The bobbin supporting member 52 is composed of a horizontal pin 52a having a vertical vertical groove 52b formed at an end, and the bobbin 53 is composed of a bobbin string 53a and a bobber 53b. You. Then, a bobbin string 53a is wound around the horizontal pin 52a, and the bobbin 53b is hung downward along the upright portion 22 of the column through the vertical groove 52b. The index portion 54 is indicated by a vertical line on the front side in the figure of the upright portion 22 of the column, and the lower swing cord 53a between the horizontal pin 52a and the lower swing body 53b is on the same plane with respect to the index portion 54. When they are parallel to each other, it can be confirmed that the upright portions 22 of the columns are vertically erected. In addition, when the down swing string 53a between the horizontal pin 52a and the down swing body 53b is in a twisted position with respect to the index portion 54, it is determined that the upright portion 22 of the column is not vertically erected. As shown, the upright portion 22 of the support is tilted to correct the upright portion 22 of the support so as to be vertically erected.
[0026]
By using the above-described vertical measuring tool 50, it is possible to immediately determine whether or not the upright portion 22 of the column is vertically erected, and when the upright portion 22 of the column is not vertically erected. Can be corrected while checking the vertical measuring tool 50, so that it is simple and extremely convenient.
[0027]
[Construction procedure]
FIG. 5 shows a preparatory stage before a retaining wall is constructed. A concrete pavement A is formed on the ground, and a concrete bed B is provided at a predetermined position on the pavement. As shown in FIG. 6, two columns 20a and 20b are erected on the bed B. When the two columns 20a and 20b are erected, first, two horizontal gauges 30a and 30b are inserted into the horizontal sections 21a and 21b, and the horizontal sections 21a and 21b are adjusted so as to be parallel and at a constant interval. . In this state, the upright portion gauge 40 is inserted into the tops of the upright portions 22a and 22b so that the upright portions 22a and 22b are adjusted to be parallel and at a constant interval. At this time, the vertical measuring device 50 adjusts one or both of the upright portions 22a and 22b to be vertical. In this way, the two columns 20a, 20b are maintained parallel and at a constant interval, and the upright portions 22a, 22b are erected so as to be vertical.
[0028]
Next, as shown in FIG. 7, the third support 20c is placed on the spreader, and two horizontal supports 21b are provided between the horizontal portion 21b of the second support 20b and the horizontal portion 21c of the third support 20c. The horizontal gauges 21b and 21c are adjusted so that the horizontal gauges 21b and 21c are parallel and at a constant interval by filling the part gauges 30c and 30d. In this state, the upright gauge 40, which is bridged between the top of the upright portion 22a of the first support 20a and the top of the upright portion 22b of the second support 20b, is placed over the tops of the upright portions 22b and 22c. The upright portions 22b and 22c are adjusted by the upright portion gauge 40 so as to be parallel and at a constant interval. If necessary, the vertical measuring tool 50 adjusts one or both of the upright portions 22b and 22c to be vertical.
[0029]
Further, as shown in FIG. 8, a fourth support 20d is arranged on the spreader, and two horizontal portions 21c between the horizontal portion 21c of the third support 20c and the horizontal portion 21d of the fourth support 20d. The horizontal parts 21c and 21d are adjusted so that the horizontal parts 21c and 21d are parallel and at a constant interval by filling the gauges 30e and 30f. In this state, the upright-portion gauge 40 bridged between the top of the upright portion 22b of the second support 20b and the top of the upright portion 22c of the third support 20c is mounted on the tops of the upright portions 22c and 22d. The upright portions 22c and 22d are adjusted by the upright portion gauge 40 so as to be parallel and at a constant interval. Further, similarly to the above, if necessary, the vertical measuring tool 50 adjusts one or both of the upright portions 22b and 22c to be vertical.
[0030]
By repeating the above operation, a predetermined number of columns 20a, 20b, 20c, 20d,... In this embodiment, six columns are to be erected, and FIG. 9 shows a state where the columns are erected. In this state, the above-mentioned struts 20a, 20b, 20c, 20d,..., Respectively, are horizontal section gauges 30a, 30b, 30c, which are fitted so as to straddle the horizontal sections 21a, 21b, 21c, 21d,. 30d, 30e, 30f,... Are fixed so as not to move. An important point in erecting the above-mentioned columns 20a, 20b, 20c, 20d,... Is that horizontal portions 21a, 21b, 21c, 21d,... Of the columns 20a, 20b, 20c, 20d,. At a certain distance by the horizontal part gauges 30a, 30b, 30c, 30d, 30e, 30f,... And the upright parts 22a, 22b, 22c, 22d of the respective columns 20a, 20b, 20c, 20d,. Are spaced at a fixed distance by the upright gauge 40, and the upright portions 22a, 22b, 22c, 22d of the columns 20a, 20b, 20c, 20d,. In addition, the upright portions 22a, 22b, 2 of the columns 20a, 20b, 20c, 20d,... Are formed in the through holes 12a, 12b, 12c, 12d,. c, placed 22d, posts 20a so ... matches, 20b, 20c, 20d, a ...
Next, as shown in FIG. 10, on the horizontal portions 21a, 21b, 21c, 21d,... Of the columns 20a, 20b, 20c, 20d,. A net-shaped reinforcing bar C in which the reinforcing bars are folded vertically and horizontally is laid with the sandwiching of the reinforcing bars 30d, 30e, 30f,. Thereafter, as shown in FIG. 11, the horizontal portions 21a, 21b, 21c, 21d,... Including the above-mentioned net-shaped reinforcing bars C, and the horizontal portion gauges 30a, 30b, 30c, 30d, 30e, 30f,. Concrete is cast on the pavement A so as to be buried to form the foundation D, and only the upright portions 22a, 22b, 22c, 22d,... Of the columns 20a, 20b, 20c, 20d,. In a state where
[0031]
Then, when the concrete forming the foundation D is hardened, as shown in FIG. 12, the retaining wall block 10 manufactured in advance is inserted into the through holes 12b, 12c, 12d,. When the upright portions 22a, 22b, 22c, 22d,... Of 20b, 20c, 20d,... Are inserted and stacked, a retaining wall E is formed as shown in FIG. . Then, concrete is injected into the through holes 12a, 12b, 12c, 12d,... Of the retaining wall block 10 to stand up portions 22a, 22b, 22c of the retaining wall block 10 and the columns 20a, 20b, 20c, 20d,. 22d,... Are fixed, and the retaining wall E is completed.
[0032]
According to the construction method of the retaining wall E according to the procedure described above, the pillars are arranged on the foundation at regular intervals by the horizontal portion gauge and the upright portion gauge, and the upright portion is made vertical by the vertical measuring tool. Since the through hole of the retaining wall block is fixed and fits upright in the upright portion, the retaining wall can be formed only by filling the upright portion with the retaining wall block. Therefore, the formwork for forming the retaining wall at the site is not required, and the labor for forming the retaining wall is not required, so that the construction period can be shortened and the cost can be reduced. In addition, since the retaining wall blocks are manufactured in the factory, only beautiful retaining wall blocks conforming to the standard can be selected and used in the factory, so that rework on site is unnecessary. In the above embodiment, the standing portion gauge is replaced every time the column is erected.However, a plurality of standing portion gauges are prepared and left standing on the column top. In this case, the upright portion gauge may be removed when the foundation D is formed. In such a case, since the columns are fixed by the foundation D in a state where each column is fixed by the horizontal portion gauge and the upright portion gauge, it is hard to cause disorder due to various influences, and the accuracy is further improved. There are advantages.
[0033]
[Example of change]
FIG. 14 is a perspective view showing a pattern for forming a through hole in the retaining wall block. FIG. 14A shows the retaining wall block 10 employed in the above embodiment, which has a semicircular cross section at both ends. Holes 12a and 12d are formed, and through holes 12b and 12c having a circular cross section are formed at appropriate intervals on the inner side, and columns 20 are inserted as described in the above embodiment. In addition, the retaining wall block 110 shown in FIG. 14B has through-holes 112a and 112b having a semicircular cross section only at both ends thereof. A pillar is inserted into the formed through hole and used. Further, the retaining wall block 210 shown in FIG. 14 (c) has through holes 212a and 212b having circular cross sections formed at appropriate intervals only inside the retaining wall block 210. . The size of the retaining wall block can be appropriately selected, and may be designed in accordance with the size of the constructed retaining wall and the circumstances of transportation. Further, the diameter, the number, the spacing, and the like of the through holes into which the columns are filled may be appropriately designed in consideration of the durability of the retaining wall and the like. In this case, when the spacing between the through holes becomes two or more, the gauge for the horizontal portion and the gauge for the upright portion may be prepared with two or more spacings.
[0034]
FIG. 15 shows a modified example of the upright portion gauge. When the upright portion gauges 140 are erected in parallel, the upright portions 22 of the adjacent uprights are parallel and the interval between them is constant. It is for doing. The upright portion gauge 140 includes a gauge body 141 and engagement receiving members 142 and 143. The gauge body 141 is composed of a horizontal shaft portion 141a having a predetermined length and projecting engagement portions 141b and 141c arranged at both ends of the horizontal shaft portion 141a. The engagement receiving members 142 and 143 are detachably disposed on the top 22a of the upright portion 22 of the support column, and are formed in a topped cylindrical shape with an open lower portion. The diameter of the engagement receiving members 142 and 143 fits into the top 22a of the upright portion 22. It is large in size, and provided with concave engagement receiving portions 142a and 143a at the top thereof, with which the engaging portions 141b and 141c engage. Then, the engagement receiving members 142 and 143 are mounted on the top portions 22a of the upright portions 22 of the adjacent columns, respectively, and the engagement of the gauge body 141 with the engagement receiving portions 142a and 143a of the engagement receiving members 142 and 143 of each column. By engaging the joints 141b and 141c, the gauge body 141 can be bridged between the engagement receiving members of the columns. As a result, the upright portions 22 of the adjacent columns are erected at regular intervals.
[0035]
It should be noted that the above embodiments are not limited to this, but encompass a wide range of embodiments described in the claims.
[0036]
【The invention's effect】
The retaining wall construction method according to the present invention includes a steel column including a horizontal portion fixed to a concrete foundation and an upright portion supporting the retaining wall, and a plurality of through holes that can be fitted into the upright portion of the post. Retaining wall block in the shape of a rectangular parallelepiped, a gauge for the horizontal part to keep the distance between the horizontal parts of the adjacent pillars constant, and a standing part to keep the distance between the standing parts of the adjacent pillars constant The present invention is characterized in that a retaining wall is erected on a concrete foundation by the following procedure using a gauge and a vertical measuring tool for erecting an upright portion of a column.
[0037]
1. Before the foundation is formed, the horizontal part of each pillar is kept at a fixed distance by the gauge for horizontal part, the upright part of each pillar is kept at a certain distance by the gauge for standing part, and the standing part of each pillar is vertical The columns are installed so that they are vertical by the measuring tool, and the uprights of the columns are aligned with the through holes of the retaining wall block.
[0038]
2. The foundation is formed by casting concrete so that the horizontal part of each column is buried.
[0039]
3. When each pillar is fixed by the foundation, the through hole of the retaining wall block is filled in the upright part of each pillar, and the retaining wall block is stacked to form a retaining wall.
[0040]
4. Concrete is poured into the through hole of the retaining wall block to fix the retaining wall block to the upright portion of the column.
[0041]
According to the above-mentioned construction method, the pillars are fixed to the foundation at regular intervals by the horizontal portion gauge and the upright portion gauge, and the upright portion is fixed by the vertical measuring tool so that the upright portion becomes vertical. Since the through-hole of the retaining wall block fits the provided standing portion, the retaining wall can be formed only by inserting the retaining wall block into the standing portion. Therefore, the formwork for forming the retaining wall at the site is not required, and the labor for forming the retaining wall is not required, so that the construction period can be shortened and the cost can be reduced. In addition, since the retaining wall blocks are manufactured in the factory, only beautiful retaining wall blocks conforming to the standard can be selected and used in the factory, so that rework on site is unnecessary.
[0042]
Further, as the horizontal portion gauge used in the above retaining wall construction method, a horizontal bar of a predetermined length and a fitting member fitted to the horizontal portion of the column with a predetermined interval on the lower surface of the horizontal bar were configured. The horizontal parts of the adjacent columns may be arranged at a constant interval by using a member and attaching and fitting the fitting member to the horizontal parts of the adjacent columns.
[0043]
If the above-mentioned horizontal part gauge is used, the horizontal parts of the adjacent columns can be accurately arranged at a fixed distance simply by inserting the fitting members into the horizontal parts of the adjacent columns, so that it is easy to use. And very convenient. In addition, if this horizontal part gauge is used to cast concrete without removing it and form the foundation together with the horizontal part of the column, the whole column will be used not only when concrete is poured but also after concrete is fixed. Has the effect of stabilizing.
[0044]
Further, as the standing portion gauge used in the above retaining wall construction method, a gauge body including a horizontal shaft portion of a predetermined length and engaging portions disposed at both ends of the horizontal shaft portion, and a top portion of the standing portion of the column A detachable arrangement is used, and an engagement receiving member that can be engaged with the engagement portion of the gauge body is used, and the engagement reception member is attached to the upright portion of the adjacent column, respectively. By extending the gauge body between the engagement receiving members of the columns, the upright portions of the adjacent columns may be erected at regular intervals.
[0045]
If the above-described gauge for the upright portion is used, the engagement receiving members are attached to the upright portions of the adjacent columns, and the engagement portions of the gauge main body are engaged with the engagement receiving members. When the gauge main body is bridged, the upright portions of the adjacent columns can be accurately arranged at a fixed distance, which is simple and extremely convenient. In addition, since the standing portion gauge is detachable from the standing portion of the column, the standing portion gauge can be removed, so that it is not obstructed when the retaining wall block is inserted into the standing portion of the column. There is.
[0046]
Furthermore, as a vertical measuring tool used in the above-mentioned retaining wall construction method, a down swing device that hangs down along the upright portion of each column, and the down swing device when the upright portion of the column is vertically erected. The vertical measuring device may be used to confirm that the upright portions of the respective columns are vertically erected, using an index portion indicated by the device.
[0047]
By using the above vertical measuring tool, it is possible to immediately judge whether or not the upright portion of the column is standing upright, and if the upright portion of the column is not upright, Since the vertical measuring tool can be corrected while checking it, it is simple and extremely convenient.
[Brief description of the drawings]
FIG. 1 is a perspective view of a retaining wall block used in the retaining wall construction method of the present invention.
FIG. 2 is a partially omitted perspective view of a column used in the retaining wall construction method of the present invention.
FIG. 3 is a perspective view of a horizontal portion of the game used for the retaining wall construction method of the present invention.
FIG. 4 is a partially cutaway perspective view of an upright portion gauge used in the retaining wall construction method of the present invention.
5A and 5B are diagrams illustrating a preparation stage before a retaining wall is constructed, wherein FIG. 5A is a front view, FIG. 5B is a plan view, and FIG. 5C is a side view.
6A and 6B are diagrams showing a state in which first and second columns for constructing a retaining wall are erected, where FIG. 6A is a front view, FIG. 6B is a plan view, and FIG. It is.
7A and 7B are diagrams showing a state in which a third support for constructing a retaining wall is erected, wherein FIG. 7A is a front view, FIG. 7B is a plan view, and FIG. FIG.
8A and 8B are diagrams showing a state in which a fourth support for constructing a retaining wall is erected, wherein FIG. 8A is a front view, FIG. 8B is a plan view, and FIG. FIG.
9A and 9B are diagrams showing a state in which a support for constructing a retaining wall is erected, wherein FIG. 9A is a front view, FIG. 9B is a plan view, and FIG. 9C is a side view.
10A and 10B are diagrams illustrating a state in which a net-shaped reinforcing bar is laid on a horizontal portion of a pillar for constructing a retaining wall, wherein FIG. 10A is a front view, FIG. 10B is a plan view, and FIG. FIG.
11A and 11B are diagrams showing a state in which a foundation is formed on a horizontal portion of a support for constructing a retaining wall, wherein FIG. 11A is a front view, FIG. 11B is a plan view, and FIG. 11C is a side view. .
FIG. 12 is a perspective view showing a state in which a retaining wall is constructed.
13A and 13B are diagrams showing a state in which a retaining wall is constructed, wherein FIG. 13A is a front view, FIG. 13B is a plan view, and FIG. 13C is a side view.
FIG. 14 is a perspective view showing three types of patterns (a), (b), and (c) of through holes formed in the retaining wall block.
FIG. 15 is a partially cutaway perspective view showing a modified example of the upright portion gauge.
[Explanation of symbols]
10 ・ ・ ・ Retaining wall block
11 ・ ・ ・ Reinforcing bar inside the retaining wall block
12a: Through hole at the end of the retaining wall block
12b ・ ・ Through hole of retaining wall block
12c: Through hole in retaining wall block
12d ・ ・ Through hole at end of retaining wall block
13 ・ ・ ・ Wall surface of retaining wall block
20 ... prop
21 ... horizontal part of the support
22 ... standing part of the support
22a ... top of the upright section
23 Supporting member
24 ... Reinforcing member
30 ・ ・ ・ Gage for horizontal part
31 ・ ・ ・ Horizontal bar
32 ... fitting member
32a ··· Nipping piece of fitting member 32
32b... Nipping piece of fitting member 32
33 ... fitting member
33a ··· Nipping piece of fitting member 33
33b... Nipping piece of fitting member 33
40 ・ ・ ・ Standing gauge
41 ・ ・ ・ Gage body of gauge for standing part
41a ... horizontal shaft
41b ... engagement part
41c ... engaging part
42 ... engagement receiving member
42a ... engagement receiving part
43 ... engagement receiving member
43a... Engagement receiving part
50 ・ ・ ・ Vertical measuring tool
51 ・ ・ ・ Plumbing device
52 ... Plumbing support member
52a horizontal pin
52b ··· Vertical groove
53 ・ ・ ・ Plumb
53a ...
53b
54 ・ ・ ・ Indicator
A: Paving
B ... Sill
C ··· Net-shaped rebar
D ... Basic
E: Retaining wall
110 ... Retaining wall block
112a-Through hole at the end of the retaining wall block
112b ・ Through hole of retaining wall block
210 ... Retaining wall block
212a, through hole at end of retaining wall block
212b, through hole in retaining wall block
140 ・ ・ Gauge for standing part
141 ・ ・ Gage body of gauge for standing part
141a, horizontal shaft
141b / engagement part
141c / engagement part
142... Engagement receiving member
142a, engagement receiving portion
143... Engagement receiving member
143a, engagement receiving portion

Claims (4)

A steel column consisting of a horizontal part fixed to a concrete foundation and a standing part supporting the retaining wall,
A cuboid concrete retaining wall block with a plurality of through holes that fit into the uprights of the columns,
A horizontal part gauge for keeping the distance between the horizontal parts of adjacent columns constant,
An upright gauge for keeping the distance between the uprights of adjacent struts constant;
Using a vertical measuring tool to erect the upright part of the column vertically,
A retaining wall construction method characterized by erecting a retaining wall on a concrete foundation by the following procedure.
1. Before the foundation is formed, the horizontal part of each pillar is kept at a fixed distance by the gauge for horizontal part, the upright part of each pillar is kept at a certain distance by the gauge for standing part, and the standing part of each pillar is vertical The columns are installed so that they are vertical by the measuring tool, and the uprights of the columns are aligned with the through holes of the retaining wall block.
2. The foundation is formed by casting concrete so that the horizontal part of each column is buried.
3. When each pillar is fixed by the foundation, the through hole of the retaining wall block is filled in the upright part of each pillar, and the retaining wall block is stacked to form a retaining wall.
4. Concrete is poured into the through hole of the retaining wall block to fix the retaining wall block to the upright portion of the column. The horizontal portion gauge, a horizontal bar of a predetermined length and a fitting member that fits into the horizontal portion of the support column at a predetermined interval on the lower surface of the horizontal bar,
2. The holding member according to claim 1, wherein the fitting member is attached to a horizontal portion of the adjacent column and is bridged so that the horizontal portions of the adjacent column are arranged at a constant interval. Wall construction method. An erecting portion gauge, a gauge body including a horizontal shaft portion having a predetermined length and engaging portions disposed at both ends of the horizontal shaft portion, and a detachably disposed top portion of the upright portion of the support, and An engagement portion and an engageable engagement receiving member,
The engagement receiving members are mounted on the upright portions of the adjacent columns, and the gauge body is bridged between the engagement receiving members of the respective columns, so that the upright portions of the adjacent columns are erected at regular intervals. The retaining wall construction method according to claim 1, wherein: A vertical measuring tool, a down swing device that hangs down along the upright portion of each column, and an index portion to which the down swing device points when the upright portion of the column is vertically erected,
The retaining wall construction method according to any one of claims 1 to 3, wherein the vertical measuring tool can confirm that the upright portions of the respective columns are vertically erected.

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