Method for joining concrete blocks

Abstract

Provided is a method for joining concrete blocks that suitably joins a first precast concrete block and a second precast concrete block. 【Solution means】The method for joining concrete blocks includes a block placement step, a movable reinforcing bar placement step after the block placement step, and a filler filling step after the movable reinforcing bar placement step. With this method for joining concrete blocks, a first precast concrete block and a second precast concrete block can be suitably joined.

Description

Technical Field

[0001] The present invention relates to a method for joining concrete blocks.

Background Art

[0002] Conventionally, a method for joining a plurality of precast concrete blocks to each other in the vertical or horizontal direction has been known (see, for example, Patent Document 1). As shown in FIGS. 23 and 24, conventionally, a method of joining both concrete blocks XA and XB by inserting a reinforcing bar protruding portion x11, which is a protruding end portion of a reinforcing bar x1 embedded in one concrete block XA, into a joint x22 embedded in the other concrete block XB has been known. In the joint x22, an end portion x21 of a reinforcing bar x2 embedded in the other concrete block XB is disposed. Then, after inserting the reinforcing bar protruding portion x11 of the one concrete block XA into the joint x22, a curable filler W such as grout is filled, so that the reinforcing bar protruding portion x11 disposed in the joint x22 and the end portion x21 of the other reinforcing bar x2 can be joined together, and both concrete blocks XA and XB can be properly joined.

[0003] However, the above-described conventional method for joining concrete blocks has been applicable only when joining one and the other concrete blocks in either one direction of the vertical or horizontal direction.

[0004] Here, FIG. 25 is a schematic reference diagram for clearly explaining an example where application is difficult. As shown in FIG. 25, when attempting to apply the conventional method of joining concrete blocks, the reinforcing bar protruding portions y11 of the horizontally placed block Y1 and the reinforcing bar protruding portions y21 of the lower block Y2, which are placed in advance, will interfere when moving another block Y3 to be joined. In addition, even if either or both of the horizontally placed block Y1 and the lower block Y2, which are placed in advance, are replaced with joints instead of the reinforcing bar protruding portions, the reinforcing bars embedded inside each block cannot be properly connected.

[0005] That is, in the conventional method of inserting the reinforcing bar protruding portion provided on one concrete block into the joint provided on the other concrete block, it is difficult to properly connect the embedded reinforcing bars, and it has been impossible to properly connect two or more concrete blocks in both the vertical and horizontal directions.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made paying attention to the above circumstances, and at least provides a method for joining concrete blocks that preferably joins a first block made of precast concrete and a second block made of precast concrete.

Means for Solving the Problems

[0008] That is, the present invention has the following configuration.

[0009] The invention according to claim 1 is a method for joining concrete blocks in which a first precast concrete block in which a plurality of first reinforcing bars extending in the vertical direction are embedded and a second precast concrete block in which a plurality of second reinforcing bars extending in the vertical direction are embedded are joined to each other in a manner in which the upward abutting surface of the first block and the downward abutting surface of the second block are abutted against each other. The first block is provided with a first reinforcing bar arrangement hole that extends in the vertical direction so as to be adjacent to the first reinforcing bar and be substantially parallel to the first reinforcing bar, and has an opening provided at least in the upward abutting surface. The second block is provided with a second reinforcing bar arrangement hole that extends in the vertical direction so as to be adjacent to the second reinforcing bar and be substantially parallel to the second reinforcing bar, and has an opening provided at least in the downward abutting surface. A block arrangement step of abutting the downward abutting surface against the upward abutting surface and arranging the second block on the first block, and after the block arrangement step, a movable reinforcing bar extending in the vertical direction is lowered into the second reinforcing bar arrangement hole, so that the lower half of the longitudinal direction of the movable reinforcing bar is positioned in the first reinforcing bar arrangement hole and the upper half of the longitudinal direction is positioned in the second reinforcing bar arrangement hole. A movable reinforcing bar arrangement step, After the movable reinforcing bar arrangement step, a filler filling step of filling the first reinforcing bar arrangement hole and the second reinforcing bar arrangement hole with a curable filler, It is provided such that the second reinforcing bar arrangement holes penetrate in the vertical direction, and in the movable reinforcing bar arrangement step, after the block arrangement step, the movable reinforcing bars are inserted from the upper opening in the second reinforcing bar arrangement holes and lowered in the second reinforcing bar arrangement holes, and movement restricting means for restricting the downward movement of the movable reinforcing bars is provided at the longitudinal intermediate portion of the second reinforcing bar arrangement holes is provided. It is a method for joining concrete blocks.

[0012] Claim 2 The invention described in is a method for joining concrete blocks according to claim 1, in which the first block and the second block are each in the shape of a rectangular plate as a whole.

Effect of the Invention

[0020] As described above, according to the present invention, at least a method for joining concrete blocks for suitably joining a first precast concrete block and a second precast concrete block can be provided.

Brief Description of the Drawings

[0021]

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Figure 25

Embodiments for Carrying Out the Invention

[0022] Hereinafter, the method for joining concrete blocks according to the present invention a first embodiment, and a reference example will be described in order with respect to the second, third, fourth, and fifth embodiments.

[0023] The method for joining concrete blocks shown in each embodiment is applicable when constructing a structure in which a plurality of concrete blocks are connected in the vertical and horizontal directions. Specific examples of structures to which the method for joining concrete blocks is applied include a wall, an L-shaped retaining wall, a box culvert, a shaft, and the like.

[0024] <<First Embodiment>> The method for joining concrete blocks according to the first embodiment will be described with reference to FIGS. 1 to 5.

[0025] The method for joining concrete blocks according to the first embodiment is to connect a first block A1 and a second block A2 in the vertical direction, that is, in the vertical direction.

[0026] Although not shown in the drawings, the horizontal joining between a plurality of blocks in the same embodiment can be carried out without difficulty by applying a conventional joining method as shown in FIGS. 23 and 24 (although the vertical joining is shown in the figure, it is also applicable when joining in the horizontal direction), or a horizontal joining method between a plurality of blocks as shown in the second, third, and fourth embodiments described later.

[0027] The vertical jointing method in a concrete block is such that a plurality of first reinforcing bars t1 extending in the vertical direction are embedded invisibly from the outside without protruding from the upward contact surface m1 which is the upward end surface, in a precast concrete first block A1, and a plurality of second reinforcing bars t2 extending in the vertical direction are embedded invisibly from the outside without protruding from the downward contact surface m2 which is the downward end surface and the upward contact surface m3 which is the upward end surface, in a precast concrete second block A2. The first block A1 and the second block A2 are connected to each other in a manner where the upward contact surface m1 of the first block A1 is brought into contact with the downward contact surface m2 of the second block A2.

[0028] The first block A1 and the second block A2 are generally in the shape of a substantially rectangular plate.

[0029] The first block A1 is provided with a first reinforcing bar arrangement hole h1 which is adjacent to the first reinforcing bar t1, extends in the vertical direction so as to be substantially parallel to the first reinforcing bar t1, and has an upper opening k1 which is an opening on the upward contact surface m1.

[0030] In this embodiment, the first reinforcing bar arrangement hole h1 is exemplified as having a bottomed structure for positioning the vertical position of the movable reinforcing bar D. However, as long as there is a movement restricting means capable of restricting the downward movement of the movable reinforcing bar D at a predetermined position, it may be a vertically penetrating one (that is, one provided with an opening also on the lower surface side). In other words, the first block A1 may use one having substantially the same structure as the second block A2.

[0031] The second block A2 is provided with a second reinforcing bar arrangement hole h2 which is adjacent to the second reinforcing bar t2, extends in the vertical direction so as to be substantially parallel to the second reinforcing bar t2, and is a through hole having an upper opening k3 and a lower opening k2 which are openings on the upward contact surface m3 and the downward contact surface m2 respectively.

[0032] That is, the second reinforcing bar arrangement hole h2 is provided so as to penetrate in the vertical direction to form the upper opening k3 on the upward contact surface m3 and the lower opening k2 on the downward contact surface m2.

[0033] In the longitudinal middle part of the second reinforcing bar arranging hole h2 in the second block A2, movement restricting means J for restricting downward movement of other movable reinforcing bars Dx is provided.

[0034] The movement restricting means J is for positioning other movable reinforcing bars Dx, which are used when connecting the second block A2 and other blocks (not shown) to be arranged thereon, at a predetermined vertical position in the second reinforcing bar arranging hole h2.

[0035] The movement restricting means J of this embodiment mainly includes an insertion hole j1 drilled in the horizontal direction and a rod-shaped movement restricting member j2 inserted into the insertion hole j1. In the second block A2, an insertion hole j1 extending in the horizontal direction is drilled so as to be able to communicate with the longitudinal middle part of the second reinforcing bar arranging hole h2. A rod-shaped movement restricting member j2, whose lower end can engage with the lower end of other movable reinforcing bars Dx descending in the second reinforcing bar arranging hole h2, is inserted into the insertion hole j1. With the movement restricting means J having such a configuration, other movable reinforcing bars Dx can be appropriately positioned at a predetermined vertical position. Needless to say, as long as the movement restricting means J can position the vertical position of other movable reinforcing bars Dx, an appropriate configuration can be applied.

[0036] The joining method of the concrete block according to the first embodiment includes a block arranging step S1, a movable reinforcing bar arranging step S2, and a filler filling step (not shown).

[0037] In the block arranging step S1, the downward abutting surface m2 of the second block A2 is abutted against the upward abutting surface m1 of the first block A1, and the second block A2 is arranged on the first block A1. The second block A2 is arranged on the first block A such that the second reinforcing bar arranging hole h2 can communicate with the first reinforcing bar arranging hole h1 in the vertical direction.

[0038] In the block arrangement step S1, when the upward contact surface m1 and the downward contact surface m2 are abutted, a bonding auxiliary material such as an adhesive may be interposed.

[0039] The movable reinforcing bar arrangement step S2 is performed after the block arrangement step S1.

[0040] In the movable reinforcing bar arrangement step S2, the movable reinforcing bar D extending linearly in the vertical direction is lowered through the second reinforcing bar arrangement hole h2 penetrating in the vertical direction provided in the second block A, so that the lower half of the longitudinal direction of the movable reinforcing bar D is positioned in the first reinforcing bar arrangement hole h1 provided in the first block A1 and the upper half of the longitudinal direction is positioned in the second reinforcing bar arrangement hole h2 provided in the second block A2.

[0041] More specifically, in the movable reinforcing bar arrangement step S2, after the block arrangement step S1, the movable reinforcing bar D is inserted from the upper opening k3 in the second reinforcing bar arrangement hole h2 and lowered in the second reinforcing bar arrangement hole h2 while the lower half of the movable reinforcing bar D is passed through the upper opening k1 in the first block A from the lower opening k2 and inserted into the first reinforcing bar arrangement hole h1.

[0042] The filler filling step is performed after the movable reinforcing bar arrangement step S2.

[0043] In the filler filling step, a curable filler (not shown) such as mortar is filled into the first reinforcing bar arrangement hole h1 and the second reinforcing bar arrangement hole h2 in a state where the movable reinforcing bar D is arranged inside through the filling holes (not shown) provided in the first block A1 and the second block A2.

[0044] <<Second Embodiment>> Subsequently, a method for joining concrete blocks according to the second embodiment will be described with reference to FIGS. 6 to 10.

[0045] The method for joining concrete blocks according to the second embodiment is to connect the first block B1 and the second block B2 in the left-right direction or the horizontal direction.

[0046] Although not shown in the drawings, the vertical joining between a plurality of blocks in this embodiment can be carried out without difficulty by applying a conventional joining method as shown in FIGS. 23 and 24, or a joining method between a plurality of blocks as shown in the above-described first embodiment or the fifth embodiment described later.

[0047] The horizontal joining method in the concrete block is such that a first precast concrete block B1 in which a plurality of first reinforcing bars u1 extending in the left-right direction are embedded invisibly from the outside without protruding from a first lateral contact surface n1 which is an end surface, and a second precast concrete block B2 in which a plurality of second reinforcing bars u2 extending in the left-right direction are embedded invisibly from the outside without protruding from a second lateral contact surface n2 which is an end surface are connected to each other in a manner of abutting the first lateral contact surface n1 of the first block B1 and the second lateral contact surface n2 of the second block B2.

[0048] The first block B1 and the second block B2 are generally in a substantially rectangular plate shape.

[0049] The first block B1 has a first space portion sp1 formed which is open only to the upper side and one side having the first lateral contact surface n1.

[0050] The second block B2 has a second space portion sp2 formed which is open only to the upper side and one side having the second lateral contact surface n1.

[0051] The joining method of the concrete block according to the second embodiment includes a block arrangement step P1, a unit reinforcing bar body arrangement step P2, and a filler filling step P3.

[0052] In the block arrangement step P1, the second block B2 is arranged beside the first block B1 such that the second lateral abutting surface n2 of the second block B2 abuts against the first lateral abutting surface n1 of the first block B1. In the block arrangement step P1, when abutting the first lateral abutting surface n1 and the second lateral abutting surface n2, a joining auxiliary material such as an adhesive may be interposed.

[0053] The unit reinforcing bar body arrangement step P2 arranges a unit reinforcing bar body E, which will be described in detail later, in a unit reinforcing bar body arrangement space SP formed by a first space portion sp1 and a second space portion sp2, and is performed after the block arrangement step P1.

[0054] In the unit reinforcing bar body arrangement step P2, the unit reinforcing bar body E is lowered into the unit reinforcing bar body arrangement space SP constituted by the first space portion sp1 and the second space portion sp2, and one horizontal half portion ea of the unit reinforcing bar body E is positioned in the first space portion sp1 while the other horizontal half portion eb is positioned in the second space portion sp2.

[0055] After passing through the unit reinforcing bar body arrangement step P2, when the unit reinforcing bar body E is arranged in the unit reinforcing bar body arrangement space SP, at least a part of the horizontal reinforcing bar e1 constituting the unit reinforcing bar body E is adjacently provided at substantially the same height position with respect to the first reinforcing bar u1 embedded in the first block B1 and the second reinforcing bar u2 embedded in the second block B2.

[0056] Here, the unit reinforcing bar body E is a structure configured by connecting a plurality of reinforcing bars, namely, horizontal reinforcing bars e1 and connecting reinforcing bars e2, so that the whole can be handled integrally. The unit reinforcing bar body E includes horizontal reinforcing bars e1 extending in the horizontal direction and arranged at regular intervals in the vertical direction, and connecting reinforcing bars e2 extending in the vertical direction and connecting the plurality of horizontal reinforcing bars e1.

[0057] The filler filling step P3 is performed after passing through the unit reinforcing bar body arrangement step P2.

[0058] In the filling material filling step P3, a curable filling material W such as mortar is filled into a unit reinforcing bar arrangement space SP in which a unit reinforcing bar body E is arranged inside.

[0059] <<Third Embodiment>> A method for joining concrete blocks according to the third embodiment will be described with reference to FIGS. 11 to 16.

[0060] The method for joining concrete blocks according to the third embodiment is to connect a first block C1 and a second block C2 in the left - right direction, that is, in the horizontal direction.

[0061] Although not shown in the drawings, the vertical joining between a plurality of blocks in this embodiment can be carried out without difficulty by applying a conventional joining method as shown in FIGS. 23 and 24, or a joining method between a plurality of blocks as shown in the above - described first embodiment or the fifth embodiment to be described later.

[0062] The horizontal joining method in the concrete block is such that a first precast concrete block C1 in which a plurality of first reinforcing bars v1 extending in the left - right direction are arranged without protruding outward from a first lateral abutting surface q1 which is the outermost end surface, and a second precast concrete block C2 in which a plurality of second reinforcing bars v2 extending in the left - right direction are arranged without protruding outward from a second lateral abutting surface q2 which is the outermost end surface are connected to each other in a manner of abutting the first lateral abutting surface q1 of the first block C1 and the second lateral abutting surface q2 of the second block C2.

[0063] The first block C1 and the second block C2 are generally in a substantially rectangular plate shape as a whole.

[0064] The first block C1 has a first notch g1 formed near the first lateral contact surface q1, and a cantilevered first reinforcing bar protruding portion v11 formed by one end of the first reinforcing bar v1 is disposed in the first notch g1. The position of the protruding end of the first reinforcing bar protruding portion v11 is set so as not to be located outside the first lateral contact surface q1.

[0065] The second block C2 has a second notch g2 formed near the second lateral contact surface q2, and a cantilevered second reinforcing bar protruding portion v21 formed by one end of the second reinforcing bar v2 is disposed in the second notch g2. The position of the protruding end of the second reinforcing bar protruding portion v21 is set so as not to protrude outside the second lateral contact surface q2.

[0066] The joining method of the concrete block according to the third embodiment includes a block arranging step R1, a joint arranging step R2, and a filler filling step R3.

[0067] In the block arranging step R1, the second block C2 is arranged beside the first block C1 so that the second lateral contact surface q2 of the second block C2 abuts against the first lateral contact surface q1 of the first block C1. In the block arranging step R1, when the first lateral contact surface q1 and the second lateral contact surface q2 are abutted, a joining auxiliary material such as an adhesive may be interposed.

[0068] The joint arranging step R2 is performed after the block arranging step R1.

[0069] In the joint arranging step R2, the tip portions of the first reinforcing bar protruding portion v11 and the second reinforcing bar protruding portion v21 are connected by a joint F which is a movable joint not embedded in the block.

[0070] In this embodiment, the joint installation step R2 is performed by horizontally moving a cylindrical joint F that has been temporarily attached to the second reinforcing bar protrusion v21 in advance in the block installation step R1 to a position where it can surround both the tip portion of the first reinforcing bar protrusion v11 and the tip portion of the second reinforcing bar protrusion v21.

[0071] The filler filling step R3 is performed after the joint installation step R2.

[0072] The filler filling step R3 fills the first notch g1 and the second notch g2 with a curable filler W such as mortar or concrete.

[0073] <<Fourth Embodiment>> A method for joining concrete blocks according to the fourth embodiment will be described with reference to FIGS. 17 to 19.

[0074] The method for joining concrete blocks according to the fourth embodiment connects the first block L1 and the second block L2 in the horizontal left - right direction and the front - rear direction.

[0075] Note that for the joining between the second block L2 and the third block L3 in the same embodiment (joining in the front - rear direction), a conventional joining method as shown in FIGS. 23 and 24 is applied.

[0076] The method for joining in the horizontal direction (left - right direction) in the concrete block is such that a precast concrete first block L1 in which a plurality of first reinforcing bars tk1 extending in the left - right direction are arranged without protruding outward from the first lateral contact surface i1 which is the outermost end surface, and a precast concrete second block L2 are connected to each other in a manner where the first lateral contact surface i1 of the first block L1 and the second lateral contact surface i2 of the second block L2 are brought into contact.

[0077] The first block L1 is generally in the shape of a substantially rectangular plate. The second block L2 is generally in the shape of a rectangular column extending in the vertical direction. Note that in-situ concrete is to be placed between a pair of first blocks L1 that are in the shape of rectangular plates and arranged substantially parallel to each other, and between a pair of third blocks L3 that are in the shape of rectangular plates and arranged substantially parallel to each other.

[0078] A plurality of joints tg that are substantially cylindrical and extend in the horizontal direction are embedded in the first block L1 so as to open to the side of the first lateral contact surface i1. The end portion tn of the first reinforcing bar tk1 is disposed in the joint tg embedded in the first block L1. The first lateral contact surface i1 of the first block L1 is a smooth vertical surface.

[0079] In the second block L2, a reinforcing bar arrangement hole th that penetrates in the horizontal direction is provided at a position corresponding to the joint tg of the first block L1. Note that at least a second reinforcing bar tk2 having a portion extending in the front-rear direction is embedded in the second block L2, and an extended end portion thereof constitutes a reinforcing bar protruding portion tke that protrudes rearward from a rear end surface i3 that is a direction orthogonal to the second lateral contact surface i2.

[0080] The method for joining concrete blocks according to the fourth embodiment includes a block arrangement step Z1, a movable reinforcing bar arrangement step Z2, and a filler filling step Z3.

[0081] In the block arrangement step Z1, the second block L2 is arranged beside the first block L1 so that the second lateral contact surface i2 of the second block L2 abuts against the first lateral contact surface i1 of the first block L1. In the block arrangement step Z1, when the first lateral contact surface tm1 and the second lateral contact surface tm2 are abutted, a joining auxiliary material such as an adhesive may be interposed.

[0082] In this embodiment, the block arrangement step Z1 includes a step of inserting a reinforcing bar protruding portion tke protruding from the second block L2 into a joint tg embedded in a pair of third blocks L3 arranged in a direction substantially orthogonal to the first block L1.

[0083] The movable reinforcing bar arrangement step Z2 is performed after the block arrangement step Z1.

[0084] The movable reinforcing bar arrangement step Z2 inserts a movable reinforcing bar TX extending in the horizontal direction (left - right direction) into the reinforcing bar arrangement hole th from the outside, positions the insertion end TXe of the movable reinforcing bar TX inside the joint tg embedded in the first block L1, and positions the portion other than the insertion end TXe substantially over the entire longitudinal direction of the reinforcing bar arrangement hole th.

[0085] The filler filling step Z3 is performed after the movable reinforcing bar arrangement step Z2.

[0086] The filler filling step Z3 fills the joint tg and the reinforcing bar arrangement hole th with a curable filler W.

[0087] In this embodiment, a mode of placing in - situ concrete between the opposing surfaces of a pair of first blocks L1 abutted against the second block L2 or between the opposing surfaces of a pair of third blocks L3 is shown, but it is not limited to such a mode. Instead of a pair of first blocks L1 or a pair of third blocks L3, for example, a single precast concrete block that abuts against the second block L2 and has reinforcing bars and joints incorporated therein may be used.

[0088] <<Fifth Embodiment>> A method for joining concrete blocks according to the fifth embodiment will be described with reference to FIGS. 20 to 22. In the fifth embodiment, since it has a configuration similar to that of the first embodiment, components having the same or corresponding configurations will be described with the same reference numerals.

[0089] The joining method of the concrete blocks according to the fifth embodiment is to connect the first block A1 and the second block A2 in the vertical direction, that is, the vertical direction.

[0090] Although not shown in the drawings, the horizontal joining of a plurality of blocks in the same embodiment can be carried out without difficulty by applying a conventional joining method as shown in FIGS. 23 and 24 (although the vertical joining is shown in the figures, it is also applicable when joining in the horizontal direction).) or the horizontal joining method of a plurality of blocks as shown in the second, third, and fourth embodiments.

[0091] The vertical joining method in the concrete block is such that a first precast concrete block A1 in which a plurality of first reinforcing bars t1 extending in the vertical direction are embedded invisibly from the outside without protruding from the upward abutting surface m1 which is the upward end surface, and a plurality of second reinforcing bars t2 extending in the vertical direction are embedded invisibly from the outside without protruding from the downward abutting surface m2 which is the downward end surface and the upward abutting surface m3 which is the upward end surface. The first block A1 and the second block A2 are connected to each other in a manner in which the upward abutting surface m1 of the first block A1 and the downward abutting surface m2 of the second block A2 are abutted.

[0092] The first block A1 and the second block A2 are generally in the shape of a substantially rectangular plate.

[0093] The first block A1 is provided with a bottomed first reinforcing bar arrangement hole h1x which is adjacent to the first reinforcing bar t1 and extends in the vertical direction so as to be substantially parallel to the first reinforcing bar t1, and an upper opening k1 which is an opening is provided in the upward abutting surface m1.

[0094] The second block A2 is provided with a bottomed second reinforcing bar arrangement hole h2x which is adjacent to the second reinforcing bar t2 and extends in the vertical direction so as to be substantially parallel to the second reinforcing bar t2, and a lower opening k2 which is an opening is provided in the downward abutting surface m2.

[0095] Further, the second block A2 is provided with a bottomed third reinforcing bar arranging hole h3x which is adjacent to the second reinforcing bar t2, extends vertically so as to be substantially parallel to the second reinforcing bar t2, and has an upper opening k3 which is an opening on the upward abutting surface m3.

[0096] That is, the second reinforcing bar arranging hole h2x and the third reinforcing bar arranging hole h3x are each provided separately and have a bottom.

[0097] The method for joining concrete blocks according to the fifth embodiment includes a movable reinforcing bar arranging step ST1, a block arranging step ST2, and a filler filling step (not shown).

[0098] In the movable reinforcing bar arranging step ST1, a movable reinforcing bar Dz extending in the vertical direction is inserted into each of the bottomed first reinforcing bar arranging holes h1x formed in a plurality of locations in the first block A1 arranged at a predetermined location such as a foundation, and the lower half of the longitudinal direction of the movable reinforcing bar Dz is positioned within the first reinforcing bar arranging hole h1x.

[0099] The block arranging step ST2 is performed after the movable reinforcing bar arranging step ST1.

[0100] In the block arranging step ST2, while inserting the upper half of the longitudinal direction of the movable reinforcing bar Dz protruding upward from the upward abutting surface m1 in the first block A1 into the bottomed second reinforcing bar arranging hole h2x, the downward abutting surface m2 is abutted against the upward abutting surface m1 to arrange the second block A2 on the first block A1.

[0101] In the block arranging step ST2, when abutting the upward abutting surface m1 and the downward abutting surface m2, a joining auxiliary material such as an adhesive may be interposed.

[0102] The filler filling step is performed after the block arranging step ST2.

[0103] The filling material filling process fills the first and second reinforcing bar placement holes h1x and h2x, in which the movable reinforcing bar Dx is disposed inside, with a curable filling material (not shown) such as mortar through filling holes (not shown) provided in the first block A1 and the second block A2.

[0104] In this embodiment, the first and second reinforcing bar placement holes h1x and h2x are each bottomed, and their depth dimensions are set to correspond to the movable reinforcing bar Dx having a length that can secure a predetermined lap joint length for the first reinforcing bar t1 and the second reinforcing bar t2. For this reason, the filling amount of the curable filling material for the first and second reinforcing bar placement holes h1x and h2x can be made appropriate with waste suppressed.

[0105] As described above, the concrete block joining method exemplified as the first, second, third, fourth, and fifth embodiments can exhibit the following effects.

[0106] <Regarding the effects of the first embodiment> The concrete block joining method shown in the first embodiment can preferably join at least the precast concrete first block A1 and the precast concrete second block A2.

[0107] That is, in the block placement step S1, since the smooth downward contact surface m2 of the second block A2 is abutted against the smooth upward contact surface m1 of the first block A1, the second block A2 can be preferably placed on the first block A1 while finely adjusting the position flexibly in the horizontal direction without being obstructed by protrusions such as reinforcing bars as in the conventional example.

[0108] Moreover, by passing through the movable reinforcing bar placement step S2 and the filling material filling step S3, a strong vertical connection between the first block A1 and the second block A2 can be preferably realized.

[0109] Furthermore, by combining the vertical joining method of the concrete blocks shown in the first embodiment with the horizontal joining method of the concrete blocks shown in the second, third, and fourth embodiments or the horizontal joining method of known concrete blocks, it is possible to easily achieve the multiple connection of two or more concrete blocks in both the vertical and horizontal directions.

[0110] Since the first block A1 and the second block A2 are in the shape of a rectangular plate as a whole, the vertical joining, that is, the joining between the upward abutting surface m1 and the downward abutting surface m2, is preferably performed, and the horizontal joining to other blocks (not shown) adjacent to the side of the first block A1 or the second block A2 is also preferably performed.

[0111] The second reinforcing bar arranging hole h2 is provided so as to penetrate in the vertical direction. And in the movable reinforcing bar arranging step S2, after passing through the block arranging step S1, the movable reinforcing bar D is inserted from the upper opening k3 in the second reinforcing bar arranging hole h2 and lowered in the second reinforcing bar arranging hole h2.

[0112] Therefore, the movable reinforcing bar D can be preferably arranged at a predetermined position through the second reinforcing bar arranging hole h2 while being inserted from the upper opening k3 formed in the second block A2. Also, since the upper opening k3 is provided in the second block A2, when arranging other blocks to be connected on the second block A2, other movable reinforcing bars Dx can be appropriately arranged at predetermined positions.

[0113] At the longitudinal middle part of the second reinforcing bar arranging hole h2, a movement restricting means J for restricting the downward movement of other movable reinforcing bars Dx is provided. Therefore, when arranging other blocks (having substantially the same shape as the second block A2) to be connected on the second block A2, other movable reinforcing bars Dx can be preferably positioned.

[0114] <Regarding the effects of the second embodiment> In the method of joining concrete blocks shown in the second embodiment, at least the first block B1 made of precast concrete and the second block B2 made of precast concrete can be preferably joined together.

[0115] That is, in the block placement step P1, since the second lateral contact surface n2, which is a smooth vertical surface of the second block B2, is abutted against the first lateral contact surface n1, which is a smooth vertical surface of the first block B1, the second block B2 can be preferably placed beside the first block B1 while finely adjusting the position flexibly in the vertical and horizontal directions without being obstructed by protrusions such as reinforcing bars.

[0116] Moreover, by passing through the unit reinforcing bar body placement step P2 and the filler filling step P3, a strong horizontal connection between the first block B1 and the second block B2 can be preferably realized.

[0117] Furthermore, by combining the method of joining the concrete blocks in the left - right direction shown in the second embodiment with the method of joining the concrete blocks in the up - down direction shown in the first embodiment or the method of joining the concrete blocks in the up - down direction of known concrete blocks, it is possible to realize, without difficulty, the multiple connection of two or more concrete blocks in both the up - down direction and the left - right direction.

[0118] Since the first block B1 and the second block B2 are in the shape of a rectangular plate as a whole, the joining in the left - right direction, that is, the joining between the first lateral contact surface n1 and the second lateral contact surface n2, is preferably performed, and the joining in the up - down direction with respect to other blocks adjacent above or below the first block B1 or the second block B2 is also preferably performed.

[0119] At least a part of the horizontal reinforcing bar e1 in the unit reinforcing bar body E is adjacent to the first reinforcing bar u1 and the second reinforcing bar u2 at substantially the same height position when arranged in the unit reinforcing bar body placement space SP.

[0120] Therefore, the overlapping joint lengths of the horizontal reinforcing bars e1 in the unit reinforcing bar body E with respect to the first reinforcing bar u1 of the first block B1 and the overlapping joint lengths of the horizontal reinforcing bars e1 in the unit reinforcing bar body E with respect to the second reinforcing bar u2 of the second block B2 are appropriately ensured respectively.

[0121] <Regarding the effects of the third embodiment> In the case of the concrete block joining method shown in the third embodiment, at least the first block C1 made of precast concrete and the second block C2 made of precast concrete can be preferably joined.

[0122] That is, in the block arranging step R1, since the second lateral abutting surface q2, which is a smooth vertical surface in the second block C2, is abutted against the first lateral abutting surface q1, which is a smooth vertical surface in the first block C1, the second block C2 can be preferably arranged beside the first block C1 while finely adjusting the position flexibly in the vertical and horizontal directions without being obstructed by protrusions such as reinforcing bars.

[0123] Moreover, by passing through the joint arranging step R2 and the filler filling step R3, a strong horizontal connection between the first block C1 and the second block C2 can be preferably realized.

[0124] Furthermore, by combining the left - right direction joining method of the concrete blocks shown in the third embodiment with the up - down direction joining method of the concrete blocks shown in the first embodiment or the up - down direction joining method of known concrete blocks, it is possible to realize, without difficulty, the multiple connection of two or more concrete blocks in both the up - down direction and the left - right direction.

[0125] Since the first block C1 and the second block C2 are each in the shape of a rectangular plate as a whole, the joining in the left - right direction, that is, the joining between the first lateral contact surface q1 and the second lateral contact surface q2, can be preferably performed. Also, the joining in the vertical direction with respect to other blocks adjacently provided above or below the first block C1 or the second block C2 can be preferably performed.

[0126] The joint - arranging step R2 is performed by moving the cylindrical joint F, which has been temporarily attached to either the first reinforcing - bar protrusion v11 or the second reinforcing - bar protrusion v21 in advance in the block - arranging step R1, to a position where it can surround the tip portions of both the first reinforcing - bar protrusion v11 and the second reinforcing - bar protrusion v21.

[0127] Therefore, the cylindrical joint F can be arranged at an appropriate position simply by moving it in the horizontal direction.

[0128] <Regarding the effects of the fourth embodiment> With the method of joining concrete blocks shown in the fourth embodiment, at least the precast - concrete first block T1 and the precast - concrete second block T2 can be preferably joined.

[0129] That is, since the block - arranging step Z1 is to abut the second lateral contact surface i2, which is a smooth upright surface of the second block L2, against the first lateral contact surface i1, which is a smooth upright surface of the first block L1, the second block L2 can be preferably arranged beside the first block L1 while finely adjusting the position flexibly in the vertical and horizontal directions without being obstructed by protrusions such as reinforcing bars.

[0130] Moreover, by passing through the movable - reinforcing - bar arranging step Z2 and the filler - filling step Z3, a strong horizontal connection between the first block L1 and the second block L2 can be preferably realized.

[0131] <Regarding the effects of the fifth embodiment> In the method for joining concrete blocks shown in the fifth embodiment, at least the first block A1 made of precast concrete and the second block A2 made of precast concrete can be preferably joined.

[0132] Further, the first reinforcing bar arranging hole h1x provided in the first block A1 and the second reinforcing bar arranging hole h2x provided in the second block A2 are each bottomed, and the depth dimensions thereof are set to correspond to the movable reinforcing bar Dx having a length capable of securing a predetermined lap joint length with respect to the first reinforcing bar t1 and the second reinforcing bar t2.

[0133] Therefore, in the configuration according to the fifth embodiment, the filling amount of the curable filler for the first reinforcing bar arranging hole h1x and the second reinforcing bar arranging hole h2x can be made appropriate with waste suppressed.

[0134] Note that the present invention is not limited to the embodiments described in detail above.

[0135] Of course, the first block and the second block are not limited to those having a substantially rectangular plate shape as a whole. For example, some end faces may be curved and the edges may be visually recognized as arc-shaped when viewed from a specific direction, or they may have a configuration with irregularities.

[0136] The first block and the second block may not be configured to be substantially the same size. If the first block and the second block are substantially the same size and structure, they can be managed without worrying about the difference between the first block and the second block, which is convenient for parts management and construction management.

[0137] Needless to say, various forms of reinforcing bars may be embedded in the first block and the second block.

[0138] The first reinforcing bar placement hole provided in the first block only needs to have an opening provided at least on the upward contact surface.

[0139] The second reinforcing bar placement hole provided in the second block only needs to have an opening provided at least on the downward contact surface.

[0140] The unit reinforcing bar body only needs to be composed of horizontal reinforcing bars extending in the horizontal direction and arranged in a plurality with a certain interval in the vertical direction, and single or a plurality of connecting reinforcing bars extending in the vertical direction and connecting the plurality of horizontal reinforcing bars. A more specific configuration can be set as appropriate.

[0141] The joint used in the joint placement process may be, for example, of a split structure that is easy to attach later.

[0142] In place of the joining method using a so-called mechanical joint for the vertical or horizontal joining of the first block and the second block, a joining method constituting an overlapping joint may be combined.

[0143] That is, the first block is provided with an extending portion formed by extending the embedded first reinforcing bar outward beyond the upward contact surface or the lateral contact surface. Further, the second block is provided with a bottomed reinforcing bar placement hole that is adjacent to the embedded second reinforcing bar, extends in the vertical direction so as to be substantially parallel to the second reinforcing bar, and has an opening provided on the downward contact surface. Then, while inserting the extending portion of the first block into the reinforcing bar placement hole of the second block, the downward or lateral contact surface of the second block is butted against the upward or lateral contact surface of the first block, and then a curable filling material is filled into the reinforcing bar placement hole to join the second block to the first block.

[0144] In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention.

Explanation of Reference Numerals

[0145] A1, B1, C1, L1... First block A2, B2, C2, L2... Second block D, TX, Dz... Movable reinforcing bars E... Unit reinforcing bar body F... Joint S1... Block installation process S2... Movable reinforcing bar installation process P1... Block installation process P2... Unit reinforcing bar body installation process P3... Filling material filling process R1... Block installation process R2... Joint installation process R3... Filling material filling process Z1... Block installation process Z2... Movable reinforcing bar installation process Z3... Filling material filling process ST1... Movable reinforcing bar installation process ST2... Block installation process

Claims

1. A method for joining concrete blocks, comprising connecting a first precast concrete block in which a plurality of first reinforcing bars extending in the vertical direction are embedded and a second precast concrete block in which a plurality of second reinforcing bars extending in the vertical direction are embedded in a manner such that an upward abutment surface of the first block and a downward abutment surface of the second block are brought into contact with each other, wherein the first block is provided with a first reinforcing bar arrangement hole that extends in the vertical direction adjacent to the first reinforcing bar and is substantially parallel to the first reinforcing bar, and has an opening provided at least in the upward abutment surface, the second block is provided with a second reinforcing bar arrangement hole that extends in the vertical direction adjacent to the second reinforcing bar and is substantially parallel to the second reinforcing bar, and has an opening provided at least in the downward abutment surface, a block arrangement step of abutting the downward abutment surface against the upward abutment surface and arranging the second block on the first block, a movable reinforcing bar arrangement step of, after the block arrangement step, lowering a movable reinforcing bar extending in the vertical direction into the second reinforcing bar arrangement hole so that a lower half portion in the longitudinal direction of the movable reinforcing bar is positioned in the first reinforcing bar arrangement hole and an upper half portion in the longitudinal direction is positioned in the second reinforcing bar arrangement hole, a filler filling step of filling the first reinforcing bar arrangement hole and the second reinforcing bar arrangement hole with a curable filler after the movable reinforcing bar arrangement step, and the second reinforcing bar arrangement hole is provided so as to penetrate in the vertical direction, the movable reinforcing bar arrangement step is to insert the movable reinforcing bar from an upper opening in the second reinforcing bar arrangement hole and lower it into the second reinforcing bar arrangement hole after the block arrangement step, a method for joining concrete blocks, wherein movement restricting means for restricting downward movement of the movable reinforcing bar is provided at an intermediate portion in the longitudinal direction of the second reinforcing bar arrangement hole.

2. The method for joining concrete blocks according to claim 1, wherein the first block and the second block are each in the shape of a rectangular plate as a whole.

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