JP2007162330A - Construction member for civil engineering structure, and civil engineering structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction member for a civil engineering structure easily manufactured and efficiently constructing the stable civil engineering structure. <P>SOLUTION: A short-sized foam resin block 3 formed with a cement hardened material layer 2 on at least one surface, and a foam resin block 4 of optional length having no cement hardened material layer are connected through connecting members 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a construction member for a civil engineering structure, and more specifically, a construction member for a civil engineering structure in which a hardened cement layer is formed on at least one surface of a foamed resin block, and the civil engineering structure. The present invention relates to a civil engineering structure constructed using construction members.

  2. Description of the Related Art Conventionally, a construction member for a civil engineering structure in which a hardened cement layer is formed on at least one surface of a foamed resin block, and the construction member for a civil engineering structure is positioned so that the cement hardened material layer is located on the outer surface A civil engineering structure such as a railway platform or road is known in which a plurality of layers are mounted and the strength against external heat and the strength against foreign matter such as gravel are increased (for example, Patent Document 1).

Utility model registration No. 2607192

  By the way, in manufacturing a construction member for a civil engineering structure composed of a foamed resin block having a cemented material layer on the surface as described above, the formation site of the cemented material layer of the foamed resin block is surrounded by a mold, By applying cement mortar in the mold and curing and curing, or by preparing a separate cement cured product layer and sticking it to the surface of the foamed resin block using an adhesive, etc. However, these operations become easier as the size of the foamed resin block is smaller (the length is shorter), and the space for the operation and curing can be reduced.

  On the other hand, when constructing a civil engineering structure, if the size of the foamed resin block of the construction member is small (short length), the number of operations for stacking and mounting increases, and the civil engineering structure cannot be constructed efficiently. , The center of gravity becomes a construction member that is greatly offset toward the cement hardened material layer side, and the construction member tends to fall to the cement hardened material layer side at the time of construction, which hinders construction and is caused by the eccentricity inside the constructed structure Strain remains, and the structure as a whole lacks stability. For this reason, when constructing a civil engineering structure, the size (length) of the foamed resin block is required to be a construction member that is somewhat large (long), contrary to the above manufacturing.

  The present invention provides a construction member for a civil engineering structure that satisfies the above-described requirements regarding the size of the opposite foamed resin block, is easy to manufacture, and can efficiently construct a stable civil engineering structure. Objective.

  In order to achieve the above-described object, the construction member for civil engineering structure according to claim 1 includes a short foamed resin block having a cement hardened material layer formed on at least one surface and an arbitrary length having no cement hardened material layer. The foamed resin block is connected to each other through a connecting member.

  The construction member for civil engineering structure according to claim 2 is characterized in that, in the invention of claim 1, the length of the short foamed resin block is 200 to 500 mm.

  Furthermore, the construction member for a civil engineering structure according to claim 3 is the invention according to claim 1 or 2, wherein dovetail grooves are respectively formed at opposing positions of the mating surfaces of the foamed resin blocks, and both the dovetail grooves are formed. The both foamed resin blocks are connected by a connecting member that is ant-bonded.

  Furthermore, the construction member for a civil engineering structure according to claim 4 is configured such that, in the invention of claim 3, the dovetail groove is formed over the entire height of the foamed resin block, and the connecting member is divided into two in the vertical direction. It is characterized by that.

  A construction member for a civil engineering structure according to claim 5 is characterized in that, in the invention of claim 3 or 4, the front end of the connecting member is made thinner than the rear end.

  Furthermore, the construction member for civil engineering structure according to claim 6 is the invention according to any one of claims 1 to 5, wherein the connecting member is formed of foamed resin, and the density thereof is higher than the density of the foamed resin block. It is characterized by that.

  Moreover, the civil engineering structure according to claim 7 is a stack of the construction member for civil engineering structure according to any one of claims 1 to 6 so that the hardened cement layer of the construction member is an outer surface. It is characterized by having built.

  According to the construction member for a civil engineering structure according to the first aspect of the present invention, since the foamed resin block having a hardened cement layer on the surface can be produced in the state of a short foamed resin block, Manufacturability is good, and there is less space for work and curing. On the other hand, when constructing a civil engineering structure, since it is a long construction member in which another foamed resin block is joined to a foamed resin block having a cement hardened material layer on the surface by a connecting member, a stable civil engineering structure is provided. Can be built efficiently.

  Moreover, according to the construction member for a civil engineering structure according to the second aspect of the present invention, the length of the short foamed resin block having the cement hardened material layer formed on the surface is specifically set to 200 to 500 mm. In addition, it is not too short and not too long, and the handling properties during the manufacturing operation and the connecting operation are extremely good.

  Moreover, according to the construction member for civil engineering structure which concerns on this invention of above-mentioned Claim 3, a foamed resin block can be couple | bonded easily and reliably. In the present invention, the dovetail groove is used as a general term for a groove having a wide internal width with respect to the width of the opening, and various cross-sectional shapes such as a trapezoid, a circle, and a T-shape are adopted. obtain.

  Further, according to the construction member for civil engineering structure according to the fourth aspect of the present invention, it is easy to form the dovetail groove in the foamed resin block, and the insertion of the connecting member into the dovetail groove is performed upward and downward. Therefore, the connection workability is good.

  Furthermore, according to the construction member for a civil engineering structure according to the fifth aspect of the present invention, it becomes easier to insert the connecting member into the dovetail.

  In addition, according to the construction member for a civil engineering structure according to the present invention of claim 6 described above, the strength of the connecting member is easy because the connecting member is easily molded, lightweight, and higher in density than the foamed resin block. It can be easily inserted into the dovetail groove, and a highly reliable foamed resin block can be connected.

  Moreover, according to the civil engineering structure according to the seventh aspect of the present invention, the civil engineering structure according to the present invention is constructed by stacking a plurality of construction members for civil engineering structure according to the present invention whose center of gravity is not offset toward the cement hardened material layer. Therefore, it becomes a stable civil engineering structure.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a construction member for a civil engineering structure according to the present invention and a civil engineering structure constructed using the construction member for a civil engineering structure will be described in detail based on the drawings.
1 is a perspective view showing an embodiment of a construction member for a civil engineering structure according to the present invention, and FIG. 2 is a perspective view showing a state before the construction member for a civil engineering structure of FIG. 1 is joined. FIG. 3 is a partially enlarged perspective view showing a state when the construction member for the civil engineering structure in FIG. 1 is coupled. FIG. 4 is a perspective view showing a state in the middle of construction of the civil engineering structure according to the present invention constructed using the construction member for civil engineering structure of FIG.

  As shown in FIG. 1, the construction member 1 for a civil engineering structure according to the present invention does not have a short foamed resin block 3 having a cement hardened material layer 2 formed on at least one surface and a cement hardened material layer. It has a structure in which a foamed resin block 4 having an arbitrary length is coupled.

  The short foamed resin block 3 and the foamed resin block 4 having an arbitrary length preferably have a width W of 500 to 1500 mm and a height H of about 300 to 1000 mm. In this embodiment, the width W is 1000 mm. The height H is 500 mm. Further, the length L1 of the short foamed resin block 3 is a length with good handleability, preferably 100 to 800 mm, more preferably 200 to 500 mm. In this embodiment, the length L1 is formed to 250 mm. . Further, the length L2 of the foamed resin block 4 having an arbitrary length can be appropriately different in consideration of the civil engineering structure to be constructed, but is usually 500 to 2000 mm. In form, it is formed to 1000 mm.

  Further, as shown in FIG. 2, two dovetail grooves 5 and 6 are formed on the coupling surfaces 3a and 4a of the foamed resin blocks 3 and 4 at opposite positions over the entire height. Yes. In this embodiment, the dovetail grooves 5 and 6 are formed such that the opening width w0 is 100 mm, the depth h is 100 mm, and the bottom width w1 is 150 mm.

  For the connection of the foamed resin blocks 3 and 4, a connecting member 7 that fits into the dovetail grooves 5 and 6 formed in the connecting surfaces 3 a and 4 a is used. The connecting member 7 is formed of a foamed resin, and as shown in FIG. 3, the connecting member 7 is formed in a rod body having a cross-sectional shape substantially the same as the planar shape of the mated dovetail grooves 5 and 6, and its length l. Is about 1/2 of the height H of the foamed resin blocks 3 and 4, in this embodiment, 250 mm. Further, the side surface of the connecting member 7 has a taper that becomes thinner as it goes downward, and the taper width a is about 1 to 5 mm.

The foamed resin blocks 3 and 4 and the connecting member 7 used in the present invention can be formed of the same foamed resin. For example, it can be formed by foaming a resin such as polystyrene, polyethylene, polypropylene, polyurethane, polyvinyl chloride, etc. Among them, it is formed by foaming a polystyrene resin that is inexpensive and has high strength even at low density. In particular, those formed of a polystyrene resin expanded particle molded body are preferable. In this embodiment, the foamed resin blocks 3 and 4 and the connecting member 7 are both formed of a polystyrene resin foam. Further, the foamed resin block 3 and 4 may usually those having a density of about 10 to 50 kg / m ^3, in this embodiment, is formed to a density of about 20 kg / m ^3. Further, it is preferable that the connecting member 7 has a density slightly higher than that, specifically about 5 kg / m ^{3. In} this embodiment, the connecting member 7 is formed with a density of about 25 kg / m ³ . . It is preferable that the foamed resin blocks 3 and 4 and the foamed body of the connecting member 7 have air bubbles independent of the water resistance surface and the strength surface.

  Moreover, the cement hardened material layer 2 formed in the said foamed resin block 3 can be formed with various hydraulic cements, such as concrete and mortar. Examples of hydraulic cement include ordinary Portland cement, moderately hot Portland cement, early strength Portland cement, low sulfate Portland cement, white Portland cement and other Portland cement, hydraulic lime, Roman cement, natural cement, alumina cement, There are blast furnace cement, silica cement, expanded cement, and colored cement. Among these, it is preferable to use Portland cement, hydraulic lime, natural cement, blast furnace cement, expanded cement, and colored cement.

In addition, various aggregates, reinforcing materials, weight reducing materials, water glass, and the like can be added to the cement. Examples of the aggregate include ordinary aggregates such as sand, gravel and silica foam, and artificial lightweight aggregates such as expanded clay, pearlite and expanded slag. Examples of the reinforcing material include various organic and inorganic fibers such as slag fibers, carbon fibers, nylon, and polyester fibers. Examples of the lightening material include foamed particles having a density of 0.008 to 0.1 g / cm ³ and a particle diameter of 2 to 15 mm, such as polystyrene, polyvinyl chloride, and polypropylene.

  The thickness t of the cement hardened material layer 2 is usually 10 to 30 mm. In this embodiment, the thickness t is 20 mm. Moreover, the cement hardened material layer 2 has a ridge provided on the surface on which the foamed resin block 3 is formed, preferably a ridge fitted into the dovetail groove, from the viewpoint of improving the bonding strength with the foamed resin block 3. In this embodiment, as shown in FIG. 1, the ridge 9 that is ant-coupled to the dovetail groove 8 provided in the foamed resin block 3 is 1 in the center in the width direction. It is formed on the cement hardened material layer 2 thus formed.

  In producing the foamed resin block 3 provided with the cement hardened material layer 2, the formation site of the cement hardened material layer of the foamed foamed resin block 3 is surrounded by a mold, and an uncured cement mortar is placed in the mold. The cured cement layer 2 may be formed by pouring, curing and curing. Conversely, the hardened cement layer 2 may be formed by putting the foamed resin block 3 on a cement mortar placed in a predetermined amount in a mold, and curing and curing the block. Furthermore, you may form by producing the cement hardened | cured material layer 2 separately, and sticking it on the surface of the foamed resin block 3 using an adhesive agent. In any of the manufacturing methods described above, the foamed resin block 3 according to the present invention is short, so that the handling property (handling property) is extremely good, the manufacturing workability is good, and the work and curing are also performed. The space for is small.

  And the foamed resin block 3 provided with the manufactured cement hardened material layer 2 and the foamed resin block 4 without the cement hardened material layer were formed on the connecting surfaces 3a and 4a with the connecting member 7 described above. By inserting the foamed resin blocks 3 and 4 into the dovetail grooves 5 and 6 from above and below, the civil engineering structure building member 1 according to the present invention is obtained. The connection of the foamed resin blocks 3 and 4 using the connecting member 7 may be performed at the factory or at the site of constructing the civil engineering structure, but is performed at least before the construction of the civil engineering structure and is stable. It is necessary to prepare the construction member 1 for a civil engineering structure according to the present invention, which can efficiently construct the civil engineering structure.

  The civil engineering structure of the present invention is constructed using the above-described construction member 1 for civil engineering structure according to the present invention. Examples of its use include roads, railway platforms, elevating slopes of pedestrian bridges, and roadways. The widening of the connecting sidewalk can be mentioned.

  In constructing the civil engineering structure of the present invention, first, the earth and sand are shaved or piled up, and then sand and gravel are laid, and then a tamping operation is performed thereon to form a foundation. Then, on the foundation, as shown in FIG. 4, a plurality of construction members 1 for civil engineering structure according to the present invention are stacked and placed so that the hardened cement layer 2 of the construction member 1 becomes the outer surface. To go. At this time, the construction member 1 for the civil engineering structure of the present invention is a long construction member in which the foamed resin block 3 provided with the cement hardened material layer 2 is joined to the other foamed resin block 4 by the connecting member 7. In addition to being able to stack and mount in a stable state, it is possible to construct a structure efficiently. Then, finish work is applied to the upper part of the constructed structure with asphalt, concrete, tiles, etc., and if necessary, the joint between the stacked construction members 1 and 1 is filled with a sealing material, and the civil engineering structure is Complete. The civil engineering structure 10 according to the present invention constructed as described above becomes a stable civil engineering structure that does not have any distortion inside.

  The embodiment of the construction member for civil engineering structure according to the present invention and the civil engineering structure constructed using the construction member for civil engineering structure has been described above, but the present invention is not limited to the embodiment described above. Naturally, various modifications and changes are possible within the scope of the technical idea of the present invention described in the claims.

  For example, in the above-described embodiment, the dovetail grooves 5 and 6 formed on the bonding surfaces of the foamed resin blocks 3 and 4 are trapezoidal in plan view. However, as shown in FIG. It is good also as ant grooves, such as. When the shape of the dovetail is changed in this way, naturally, the cross-sectional shape of the connecting member 7 that is ant-coupled to the dovetail needs to be changed accordingly. Accordingly, it is preferable that the connecting member 7 has a hard-moving shape that does not move in the front-rear and left-right directions and is movable up and down.

  Further, in the above embodiment, the dovetail grooves 5 and 6 are formed over the entire height of the foamed resin blocks 3 and 4, but it is not always necessary to form the dovetail groove from the vertical direction to the middle. It is good also as what connects the foamed resin blocks 3 and 4 with the short connection member 7 whose ant coupling | bonding length to the dovetail groove is less than 1/2 of the height of the foamed resin blocks 3 and 4.

It is the perspective view which showed one Embodiment of the construction member for civil engineering structures which concerns on this invention. It is the perspective view which showed the state before the coupling | bonding of the construction member for civil engineering structures of FIG. It is the elements on larger scale which showed the state at the time of the coupling | bonding of the construction member for civil engineering structures of FIG. It is the perspective view which showed the state in the middle of construction of the civil engineering structure based on this invention constructed | assembled using the construction member for civil engineering structures of FIG. It is the top view which showed other embodiment of the dovetail groove | channel formed in the joint surface of a foamed resin block.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction member for civil engineering structure 2 Cement cured material layer 3 Short foam resin block 3a Bonding surface 4 Foamed resin block of arbitrary length 4a Bonding surface 5 Dovetail groove 6 Dovetail groove 7 Connecting member 8 Dovetail groove 9 Convex strip 10 Civil engineering Structure

Claims (7)

  A structure in which a short foamed resin block having a cement hardened material layer formed on at least one surface and a foamed resin block having an arbitrary length not having a cement hardened material layer are bonded via a connecting member. A construction member for civil engineering structures.   The construction member for a civil engineering structure according to claim 1, wherein the length of the short foamed resin block is 200 to 500 mm.   The dovetail resin block is formed by forming dovetail grooves at positions where the mating surfaces of the foamed resin blocks face each other, and connecting the both foamed resin blocks by connecting members that dovetail bonding to both of the dovetail grooves. Construction member for civil engineering structure of 2.   The construction member for a civil engineering structure according to claim 3, wherein the dovetail groove is formed over the entire height of the foamed resin block, and the connecting member is divided into two in the vertical direction.   The construction member for a civil engineering structure according to claim 3 or 4, wherein a leading end of the connecting member is made thinner than a rear end.   The construction member for a civil engineering structure according to any one of claims 1 to 5, wherein the connecting member is formed of a foamed resin and has a density higher than that of the foamed resin block. The civil engineering structure construction member according to any one of claims 1 to 6, wherein the construction member is constructed by stacking a plurality of construction members so that a hardened cement layer of the construction member is an outer surface. Structure.

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