JP5634814B2 - Seawall construction method - Google Patents

Description

  The present invention relates to a revetment construction method.

  In order to protect the shore from the sea, river or lake (hereinafter referred to as “the sea”), a shore protection is constructed in the vicinity of the sea. In the conventional revetment, a sheet pile arranged perpendicularly to the horizontal direction in a ground horizontally separated from the sea etc., and between the sheet pile and the sea etc., the upper end from the upper end portion of the sheet pile And a covering material that is fixed in a range up to a lower portion of the portion and covers the range. The sheet pile is made of steel, and the covering material is made of reinforced concrete. The covering material protects the sheet pile from the sea or the like, and prevents water from the sea or the like from contacting the sheet pile and corroding the sheet pile.

  When constructing the revetment, first, the sheet pile is arranged perpendicular to the horizontal direction in the ground, and then, in the ground, the sheet pile and the sheet pile are separated from the sheet pile in the horizontal direction. The area between the formed position is excavated from the surface of the ground to between the upper end and the lower end of the sheet pile. Thereafter, the range of the sheet pile is covered with the covering material, and the covering material is fixed to the range. Thereafter, the space between the covering material and the position is filled with earth and sand.

  When the range of the sheet pile is covered with the covering material and the covering material is fixed to the range, a bracket is first placed on the bottom of the excavated ground and fixed to the sheet pile. Next, the mold is attached to the bracket in parallel to the sheet pile with a space in the horizontal direction from the sheet pile. Thereafter, a reinforcing bar is disposed between the formwork and the sheet pile, and concrete is placed between the formwork and the sheet pile. After the concrete has hardened, the formwork is removed from the bracket.

  When the area of the ground is excavated, water such as the sea may invade above the bottom of the excavated ground. In this case, the bracket must be fixed to the sheet pile by underwater welding, and it is difficult to firmly fix the bracket to the sheet pile. For this reason, pressure is applied from the concrete to the formwork while the concrete is being placed between the formwork and the sheet pile, and the pressure is transmitted to the bracket, thereby damaging the bracket. There is a fear. Thereby, the concrete flows out from between the formwork and the sheet pile, and there is a possibility that the construction of the revetment is interrupted.

  In other conventional revetments, a sheet pile arranged perpendicular to the first horizontal direction in the ground, and fixed to the sheet pile at a second horizontal direction perpendicular to the first horizontal direction. A plurality of supporting hardware, a covering plate disposed in parallel to the sheet pile between two adjacent support metal fittings, and being fixed to each of the adjacent two, and filling between the covering plate and the sheet pile Some materials include a material (see Patent Document 1). Each of the two adjacent ones supports the cover plate.

  In this case, by fixing the support hardware to the sheet pile before placing the sheet pile in the ground, the support hardware can be fixed to the sheet pile without underwater welding. Can be firmly fixed to the sheet pile. For this reason, while the space between the cover plate and the sheet pile is filled with the filler, the pressure applied to the cover plate from the filler is transmitted to the support metal, so that the support metal is damaged. There is no. However, when the sheet pile is arranged in the ground, not only the sheet pile but also the support hardware receives frictional resistance from the ground, so that it takes much labor and time to arrange the sheet pile.

JP2003-90054

  An object of the present invention is to place concrete between the sheet pile and the formwork attached to the bracket at a distance from the sheet pile without increasing the labor and time required to arrange the sheet pile in the ground. The pressure applied from the concrete to the formwork is transmitted to the bracket, so that the bracket is not damaged and the revetment work is prevented from being interrupted.

  According to the present invention, after filling the space between the sheet pile and the panel spaced apart from each of the sheet pile and the position horizontally spaced from the sheet pile on the bottom of the excavated ground, the panel By filling the space between the sheet pile and the sheet pile with the filler, the pressure applied from the filler to the panel is transmitted to the earth and sand so that the earth and sand resists the pressure. Thus, the mold frame is attached to the bracket fixed to the sheet pile at a distance from the sheet pile, and the concrete is placed from the concrete to the mold frame as in the conventional case of placing concrete between the mold frame and the sheet pile. The applied pressure is transmitted to the bracket so that the bracket is not damaged, and the revetment work is prevented from being interrupted.

  The construction method of the revetment according to the present invention includes a first step of arranging a sheet pile perpendicularly to the horizontal direction in the ground separated horizontally from the sea, etc., and the sheet pile and the sheet pile in the ground from the first step. A second step of excavating a region between the position horizontally separated toward the sea and the like from the surface of the ground to between the upper end and the lower end of the sheet pile, and on the bottom of the excavated ground A third step of disposing a panel parallel to the sheet pile spaced from each of the sheet pile and the position; a fourth step of filling the space between the panel and the position with earth and sand; and the panel and the sheet pile. And a fifth step of filling the space with a filler.

  While the space between the panel and the sheet pile is filled with the filler, pressure is applied from the filler to the panel. Since the space between the panel and the position is filled with the earth and sand, and the space between the panel and the sheet pile is filled with the filler, the pressure is transmitted to the earth and the earth bears the pressure. For this reason, the formwork is attached to the bracket fixed to the sheet pile at a distance from the sheet pile, and the concrete is placed from the concrete to the formwork as in the conventional case of placing concrete between the formwork and the sheet pile. The applied pressure is transmitted to the bracket, the bracket is not damaged, and the concrete does not flow out between the formwork and the sheet pile. This can prevent the revetment work from being interrupted.

  Since the earth and sand bears the pressure, the support hardware fixed to the sheet pile, which is conventionally required, is not required. For this reason, the support metal does not receive frictional resistance from the ground when the sheet pile is arranged in the ground as in the conventional case where the support metal is fixed to the sheet pile. For this reason, the labor and time required to arrange the sheet pile in the ground do not increase.

  The construction method includes attaching a plurality of spacers to the panel at an interval in the vertical direction before the third step, and in the third step, the excavated ground so that each spacer is in contact with the sheet pile. The panel is placed on the bottom.

  The construction method includes a sixth step of adjusting a vertical position of the panel with respect to the sheet pile using a position adjusting means between the third step and the fourth step. The adjusting means includes a first member fixed to the upper end portion of the sheet pile, a second member attached to the first member so as to be movable in the vertical direction, and one end portion fixed to the second member, A third member fixed to the panel at the other end, and in the sixth step, the vertical position of the panel is moved by moving the second member in the vertical direction with respect to the first member. Adjust.

In the construction method, a sheet pile having two opposing faces is perpendicular to the horizontal direction in a ground separated horizontally from the sea or the like, and one of the faces is directed to the sea or the like. In the ground, an area between the one surface of the sheet pile and a position horizontally separated from the one surface toward the sea or the like from the surface of the ground plate excavating to between upper and lower ends, it met it is arranged parallel to the sheet pile panels on the bottom of the excavated soil at a distance from each of the one surface and the position of the sheet pile And arranging the panel on the bottom of the excavated ground so that each of a plurality of spacers attached to the panel at an interval in the vertical direction is in contact with the sheet pile before the arrangement, the sheet pile The upper end of the The first member, the second member attached to the first member so as to be movable in the vertical direction, one end portion is fixed to the second member, and the other end portion is fixed to the upper end portion of the panel. Adjusting the vertical position of the panel with respect to the sheet pile using a position adjusting means comprising a third member comprising a chain, wherein the second member is moved in the vertical direction with respect to the first member. Adjusting the vertical position of the panel, filling between the panel and the position with earth, filling between the panel and the one surface of the sheet pile with a filler, Covering the upper end surface of the panel, the upper end surface of the filler, the upper end surface of the sheet pile, and the other surface of the upper end portion of the sheet pile with a covering material, and fixing the covering material thereto.

  According to the present invention, since the space between the panel and the position is filled with the earth and sand and the space between the panel and the sheet pile is filled with the filler, the pressure applied from the filler to the panel is It is transmitted to the earth and sand, and the earth and sand bears the pressure. For this reason, the formwork is attached to the bracket fixed to the sheet pile at a distance from the sheet pile, and the concrete is placed from the concrete to the formwork as in the conventional case of placing concrete between the formwork and the sheet pile. The applied pressure is transmitted to the bracket, the bracket is not damaged, and the concrete does not flow out between the formwork and the sheet pile. This can prevent the revetment work from being interrupted.

  Since the earth and sand bears the pressure, the support hardware fixed to the sheet pile, which is conventionally required, is not required. For this reason, the support metal does not receive frictional resistance from the ground when the sheet pile is arranged in the ground as in the conventional case where the support metal is fixed to the sheet pile. For this reason, the labor and time required to arrange the sheet pile in the ground do not increase.

The longitudinal cross-sectional view of the revetment which concerns on this invention. The figure which shows the state which has arrange | positioned the sheet pile in the ground. The figure which shows the state which excavated the ground. The figure which shows the state which has arrange | positioned the panel on the bottom part of the excavated ground. FIG. 5 is an enlarged view of the spacer along line 5 in FIG. 4. The enlarged view of the position adjustment means in the line 6 of FIG. The top view of the sheet pile in the line 7 of FIG. The side view of the reinforcing bar in the line 8 of FIG. The figure which shows the state which filled between the position separated from the panel and the sheet pile with earth and sand. The figure which shows the state filled with the filler between the panel and the sheet pile.

  As shown in FIG. 1, a revetment 14 is constructed between the sea 10 and the coast 12 in order to protect the coast 12 from the sea 10. The revetment 14 includes a sheet pile 18 arranged perpendicular to the first horizontal direction in a ground 16 separated from the sea 10 in a first horizontal direction (left and right direction in FIG. 1), and a sheet pile in the ground 16. A panel 20 disposed in parallel to the sheet pile 18 at a distance in the first horizontal direction from 18 to the sea 10, and a filler 22 filling between the panel and the sheet pile 18.

  The upper end portion 24 of the sheet pile 18 is substantially at the same height as the surface 26 of the ground 16. In the example shown in FIG. 1, the upper end surface 24 a of the sheet pile 18 is at a height several tens of centimeters higher than the surface 26 of the ground 16. The upper end surface 24a of the sheet pile 18 may be 1m to 2m higher than the example shown in FIG. 1 which is several tens of centimeters higher than the surface 26 of the ground 16, It may be at the same height, or may be several tens of centimeters lower than the surface 26 of the ground 16.

  The sheet pile 18 is a steel pipe sheet pile, adjacent to a second horizontal direction (depth direction in FIG. 1) orthogonal to the first horizontal direction, and a plurality of steel pipes 28 each extending in the vertical direction, and a filler filling each steel pipe. 30. Two adjacent steel pipes 28 are joined together, and the filler 30 is made of concrete.

  The lower end 32 of the panel 20 is between the upper end 24 and the lower end (not shown) of the sheet pile 18. In the example shown in FIG. 1, the vertical length of the sheet pile 18 is 10 m or more, and the vertical length of the panel 20 is about 2 m. The panel 20 is made of precast concrete, and the filler 22 is made of cast-in-place concrete. The panel 20 and the filler 22 cover the range from the upper end 24 of the sheet pile 18 to the lower part of the upper end, protect the sheet pile 18 from the sea 10, and the water in the sea 10 contacts the sheet pile 18 so that the sheet pile is Prevent corrosion.

  The sheet pile 18 has two opposite surfaces 18 a and 18 b, and one of the surfaces 18 a is directed to the sea 10. The filler 22 fills the space between the panel 20 and the one surface 18 a of the sheet pile 18. The revetment 14 is fixed to the upper end surface of the panel 20, the upper end surface of the filler 22, the upper end surface 24 a of the sheet pile 18, and the other surface 18 b of the upper end portion 24 of the sheet pile 18, and includes a covering material 34 that covers these. The covering material 34 is made of cast-in-place concrete, strengthens two adjacent bonds of the steel pipe 28, and improves the appearance of the revetment 14.

  When constructing the revetment 14, as shown in FIG. 2, a sheet pile 18 is arranged in the ground 16 perpendicular to the first horizontal direction. At this time, the sheet pile 18 is arranged so that the upper end portion 24 of the sheet pile 18 is located at substantially the same height as the surface 26 of the ground 16. When arranging the sheet pile 18, first, a plurality of steel pipes 28 are driven into the ground 16 adjacent to each other in the second horizontal direction using a pile driving machine (not shown), and then the inside of each steel pipe 28 is moved inside. Fill with filler 30 and then join two adjacent steel tubes 28 together.

  One of the two adjacent steel pipes 28 has two edges separated in the second horizontal direction, and a cylindrical first joint 28a parallel to the one steel pipe 28 is formed on one edge. A cylindrical second joint 28b parallel to one steel pipe 28 is fixed to the other edge (FIG. 7). The other steel pipe 28 of the two adjacent ones has two edges separated in the second horizontal direction, and a cylindrical third joint 28c parallel to the other steel pipe 28 is formed on one edge. A cylindrical fourth joint 28d parallel to the other steel pipe 28 is fixed to the other edge. When one steel pipe 28 and the other steel pipe 28 are joined, the second joint 28b is engaged with the third joint 28c, and the inside of the second joint 28b and the inside of the third joint 28c are filled with concrete. Fill with 28e. The filler 28e may be mortar instead of the above example made of concrete.

  After placing the sheet pile 18 in the ground 16, as shown in FIG. 3, an area 38 between the sheet pile 18 and a position 36 that is horizontally separated from the sheet pile toward the sea 10 is ground. 16 is excavated from the surface 26 of the sheet pile 18 to between the upper end 24 and the lower end of the sheet pile 18. In the example shown in FIG. 3, the distance 40 between the sheet pile 18 and the position 36 is 2 to 4 m, and the excavated ground depth 42 (the depth from the surface 26 of the ground 16 to the bottom 44 of the excavated ground). 42) is about 2 m.

  Thereafter, as shown in FIG. 4, the panel 20 is arranged in parallel with the sheet pile 18 at a distance from the sheet pile 18 and the position 36 on the bottom 44 of the excavated ground. In the example shown in FIG. 4, the distance between the panel 20 and the sheet pile 18 is several tens of centimeters. When the panel 20 is placed on the bottom 44 of the excavated ground, first, the crushed stone 46 is placed on the area near the sheet pile 18 in the bottom 44 of the excavated ground, and then the panel 20 is placed on the crushed stone. Put it on. The first horizontal length dimension of the range is larger than the sum of the distance between the panel 20 and the sheet pile 18 and the thickness dimension of the panel 20, and the second horizontal length dimension of the range is a sheet pile. 18 equal to the length dimension in the second horizontal direction.

  An elastic member (not shown) that seals between the panel 20 and the crushed stone 46 is interposed between the panel 20 and the crushed stone 46. The elastic member prevents the concrete from flowing out between the panel 20 and the sheet pile 18 and between the panel 20 and the crushed stone 46 when the concrete is placed between the panel 20 and the sheet pile 18. The elastic member is made of rubber, is fixed to the panel 20, and extends in the second horizontal direction. When the panel 20 is placed on the bottom 44 of the excavated ground, the elastic member is fixed to the panel 20, and then the panel 20 is placed on the crushed stone 46. The elastic member may be made of urethane foam or sponge instead of the above example made of rubber. When placing the panel 20 on the bottom 44 of the excavated ground, instead of the example shown in FIG. 4 where the panel 20 is placed on the crushed stone 46, a horizontal plate (not shown) is placed on the crushed stone 46, The panel 20 may be placed on the plate, or the panel 20 may be placed directly on the bottom 44 of the excavated ground.

  Before placing the panel 20 on the bottom 44 of the excavated ground, a plurality of spacers 48 are attached to the panel 20 at intervals in the vertical direction, and the panel 20 is arranged on the bottom 44 of the excavated ground. The panel 20 is arranged so that each spacer 48 contacts the sheet pile 18. The spacer 48 maintains the distance between the panel 20 and the sheet pile 18.

  As shown in FIG. 5, the panel 20 includes a main body 50 made of precast concrete, and a plurality of nuts 52 that are fixed to the inside of the main body at intervals in the vertical direction and each have an axis extending in the first horizontal direction. The end of each nut is open to the outside of the main body 50. Each spacer 48 is a bolt extending in the first horizontal direction from the main body 50, one end of which is screwed into the nut 52, and the length from the main body 50 to the other end of the bolt by turning the bolt. Can be adjusted. The length is adjusted so that the length is equal to the designed distance between the panel 20 and the sheet pile 18.

  After arranging the panel 20 on the bottom 44 of the excavated ground, the position of the panel 20 in the vertical direction with respect to the sheet pile 18 is adjusted using the position adjusting means 54. As shown in FIG. 6, the position adjusting means 54 includes a first member 56 fixed to the upper end 24 of the sheet pile 18, a second member 58 attached to the first member so as to be movable in the vertical direction, and one end. A third member 60 fixed to the second member and the other end fixed to the panel 20. Adjustment of the vertical position of the panel 20 is performed by moving the second member 58 in the vertical direction with respect to the first member 56.

  Before adjusting the vertical position of the panel 20 using the position adjusting means 54, the first member 56 can be fixed to the upper end 24 of the sheet pile 18 and the second member 58 can be moved in the vertical direction relative to the first member 56. And the one end and the other end of the third member 60 are fixed to the second member 58 and the panel 20, respectively. For example, before placing the panel 20 on the bottom 44 of the excavated ground, the first member 56 is fixed to the upper end 24 of the sheet pile 18 and the second member 58 is attached to the first member 56 so as to be movable in the vertical direction. The one end of the third member 60 is fixed to the second member 58, the panel 20 is disposed on the bottom 44 of the excavated ground, and then the other end of the third member 60 is fixed to the panel 20. . Instead, the first member 56 is fixed to the upper end 24 of the sheet pile 18 before the panel 20 is placed on the bottom 44 of the excavated ground, and the one end and the other end of the third member 60 are respectively connected. The second member 58 may be fixed to the second member 58 and the panel 20, and the second member 58 may be attached to the first member 56 so as to be movable in the vertical direction after the panel 20 is disposed on the bottom 44 of the excavated ground.

  The first member 56 is a bolt that is coupled to the upper end 24 of the sheet pile 18 and extends upward from the upper end. The second member 58 has a through hole 62 that is provided at one end of the second member and receives the bolt. The one end portion of the second member 58 is in close contact with the upper surface of the one end portion and screwed into the bolt, and the lower nut 66 is in close contact with the lower surface of the one end portion and screwed into the bolt. And attached to the first member 56. The panel 20 includes an eye bolt 68 fixed to the upper end portion of the main body 50, and the third member 60 is a chain in which one end portion is attached to the other end portion of the second member 58 and the other end portion is attached to the eye bolt 68. It is. When the second member 58 is moved upward relative to the first member 56, each of the upper nut 64 and the lower nut 66 is turned to move them together with the second member 58. On the other hand, when the second member 58 is moved downward relative to the first member 56, each of the upper nut 64 and the lower nut 66 is rotated to move them together with the second member 58.

  The third member 60 is inclined with respect to the vertical direction, and by moving the second member 58 upward with respect to the first member 56, tension acts on the third member 60, and the tension is applied to the panel 20. The first horizontal component of the tension is transmitted from the panel 20 to the spacer 48. Thereby, it can prevent that the spacer 48 leaves | separates from the sheet pile 18, and can maintain reliably the space | interval between the panel 20 and the sheet pile 18 at the predetermined space | interval.

  As shown in FIG. 7, the panel 20 includes a plurality of panel members 20a adjacent to each other in the second horizontal direction, and two adjacent panel members are joined together. The panel 20 may be composed of one member instead of the example shown in FIG. 7 composed of a plurality of panel members 20a. A plurality of reinforcing bars 70 are attached to the panel 20 at intervals. Each reinforcing bar 70 is located between two adjacent steel pipes 28, and the distance between the reinforcing bar 70 and the sheet pile 18 is larger than the distance corresponding to the concrete cover thickness required for the reinforcing bar 70 in design. Since the reinforcing bar 70 is located between two adjacent steel pipes 28, the distance between the reinforcing bar 70 and the sheet pile 18 can be made relatively large, and when concrete is placed between the panel 20 and the sheet pile 18 The reinforcing bar 70 can be sufficiently covered with the concrete, and the reinforcing bar 70 and the concrete can be reliably combined. In the example shown in FIG. 8, the reinforcing bars 70 are two parallel first portions 72 that are spaced apart in the vertical direction, each being fixed inside the panel 20, and from the panel toward the sheet pile 18. Two first portions 72 extending in a first horizontal direction, and a second portion 74 perpendicular to each first portion between the first portions and spaced from the sheet pile 18; Have

  After adjusting the vertical position of the panel 20, the space between the panel 20 and the position 36 is filled with earth and sand 76 as shown in FIG. 9. Thereafter, as shown in FIG. 10, concrete is placed between the panel 20 and the sheet pile 18 to fill the space between the panel 20 and one surface 18 a of the sheet pile 18 with the filler 22. When the area 38 of the ground 16 is excavated, the water of the sea 10 may enter the bottom 44 of the excavated ground, and the water of the sea 10 may enter between the panel 20 and the sheet pile 18. For this reason, it is desirable that the filler 22 is made of underwater non-separable concrete. The reinforcing bar 70 fixes the filler 22 to the panel 20. After filling the space between the panel 20 and the one surface 18a of the sheet pile 18 with the filler 22, the upper end surface of the panel 20, the upper end surface of the filler 22, the upper end surface 24a of the sheet pile 18, and the upper end portion 24 of the sheet pile 18. And the other surface of the upper end surface of the panel 20, the upper end surface of the filler 22, the upper end surface 24 a of the sheet pile 18, and the upper end portion 24 of the sheet pile 18. 18b (FIG. 1).

  At this time, the first formwork (not shown) is such that the upper end of the first formwork is above the panel 20, the filler 22 and the sheet pile 18, and the lower end of the first formwork is in close contact with the panel 20. As shown in the figure, it is arranged between the panel 20 and the sea 10 in parallel with the sheet pile 18 and fixed to the panel 20, and a second formwork (not shown) is disposed at the upper end of the second formwork. The lower end of the second formwork is at the same height as the upper end 24 of the sheet pile 18 and is in the first horizontal direction from the other surface 18b of the upper end. It arrange | positions in parallel with the sheet pile 18 between the panel 20 and the shore 12 so that a space | interval may be put, and it fixes to the ground 16, Between the said 1st formwork and the said 2nd formwork, and the said 2nd formwork Concrete is placed between the upper end 24 of the sheet pile 18 and the other surface 18b. The first mold has one end and the other end separated in the second horizontal direction, and the second mold has one end and the other end separated in the second horizontal direction. A third mold is placed between and fixed to the one end of the first mold and the one end of the second mold before placing the concrete. A frame is disposed between and fixed to the other end of the first mold and the other end of the second mold. The third formwork closes between the one end part of the first formwork and the one end part of the second formwork, and the fourth formwork has the other end part of the first formwork and the first formwork. The space between the other end of the two molds is closed.

  While the space between the panel 20 and the sheet pile 18 is filled with the filler 22, pressure is applied to the panel 20 by the filler. Since the space between the panel 20 and the position 36 is filled with the earth and sand 76 and the space between the panel 20 and the sheet pile 18 is filled with the filler 22, the pressure is transmitted to the earth and sand 76, and the earth and sand bears the pressure. For this reason, a mold frame is attached to a bracket fixed to a sheet pile at a distance from the sheet pile, and concrete is placed between the mold frame and the sheet pile. The applied pressure is transmitted to the bracket, the bracket is not damaged, and the concrete does not flow out between the formwork and the sheet pile. This can prevent the revetment work from being interrupted.

  Since the earth and sand 76 bears the pressure, the support hardware fixed to the sheet pile, which is conventionally required, is not required. For this reason, the support metal does not receive frictional resistance from the ground when the sheet pile is arranged in the ground as in the conventional case where the support metal is fixed to the sheet pile. For this reason, the labor and time required to arrange the sheet pile in the ground do not increase.

  Since the panel 20 made of precast concrete and the filler 22 made of cast-in-place concrete cover the range from the upper end 24 of the sheet pile 18 to the lower part of the upper end, only the cover made of cast-in concrete comes from the upper end of the sheet pile. The amount of cast-in concrete can be reduced and the working time at the revetment work site can be shortened as compared with the conventional case of covering the range up to the bottom of the upper end.

  In general, there is a limit to the size of the formwork, and in the conventional case of placing concrete between the formwork and the sheet pile, after placing concrete between the formwork and the sheet pile, It is necessary to repeat moving the mold in the second horizontal direction and placing concrete between the moved mold and the sheet pile, which increases the work time at the revetment work site. On the other hand, the size of the panel 20 is not limited, and the length of the panel 20 in the second horizontal direction can be made equal to the length of the sheet pile 18 in the second horizontal direction. The work of placing concrete in between can be completed at once, and the work time at the revetment construction site can be shortened.

  The sheet pile 18 may be a steel sheet pile, a main pile horizontal sheet pile, or the like instead of the example shown in FIG. 1 which is a steel pipe sheet pile. The sheet pile 18 may be disposed in the ground separated from the river or lake (not shown) instead of the example illustrated in FIG. 1 disposed in the ground 16 separated from the sea 10. . The filler 22 may be mortar, soil cement or the like instead of the example shown in FIG. 1 made of concrete.

10 sea 14 revetment 16 ground 18 sheet pile 20 panel 22 filler 26 surface 36 position 38 region 44 bottom 48 spacer 54 position adjusting means 56 first member 58 second member 60 third member 76 earth and sand

Claims (2)

A first step of placing a sheet pile perpendicular to the horizontal direction in the ground separated horizontally from the sea, etc .;
Second, excavating a region between the sheet pile and a position horizontally spaced from the sheet pile toward the sea or the like from the surface of the ground to between the upper end portion and the lower end portion of the sheet pile. Steps,
A third step of arranging a panel parallel to the sheet pile spaced from each of the sheet pile and the position on the bottom of the excavated ground;
A fourth step of filling the space between the panel and the position with earth and sand;
A fifth step of filling a space between the panel and the sheet pile with a filler ;
A sixth step of adjusting the vertical position of the panel with respect to the sheet pile using a position adjusting means between the third step and the fourth step;
Before the third step, a plurality of spacers are vertically attached to the panel, and the panel is disposed on the bottom of the excavated ground so that each spacer contacts the sheet pile in the third step. And
The adjusting means includes a first member fixed to the upper end portion of the sheet pile, a second member attached to the first member so as to be movable in the vertical direction, and one end portion fixed to the second member, A third member made of a chain having the other end fixed to the upper end of the panel, and in the sixth step, by moving the second member in the vertical direction with respect to the first member, A revetment construction method that adjusts the vertical position of the panel . Arranging a sheet pile having two opposing faces perpendicularly to the horizontal direction in a ground separated horizontally from the sea etc., with one of the faces facing the sea etc. ,
In the ground, an area between the one surface of the sheet pile and a position horizontally spaced from the one surface toward the sea or the like from the surface of the ground, an upper end portion and a lower end portion of the sheet pile Drilling between,
A panel is arranged on the bottom of the excavated ground in parallel to the sheet pile at a distance from each of the one surface and the position of the sheet pile, and before the arrangement, the panel is arranged vertically in the panel. Disposing the panel on the bottom of the excavated ground such that each of a plurality of spacers attached at intervals contacts the sheet pile;
A first member fixed to the upper end of the sheet pile, a second member attached to the first member to be movable in the vertical direction, one end fixed to the second member, and the other end Adjusting the vertical position of the panel with respect to the sheet pile using a position adjusting means comprising a third member comprising a chain fixed to the upper end of the panel, wherein the second member is the first member. Adjusting the vertical position of the panel by moving in the vertical direction,
Filling the space between the panel and the position with earth and sand;
Filling between the panel and the one surface of the sheet pile with a filler,
Covering the upper end surface of the panel, the upper end surface of the filler, the upper end surface of the sheet pile, and the other surface of the upper end portion of the sheet pile with a covering material, and fixing the covering material to them. Construction method.

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