JPH0674579B2 - Base mat for soft ground stabilization - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a soft ground stabilizing base mat used for stabilizing soft ground, particularly ultra-soft ground.

[Problems to be solved by the invention]

Conventionally, stabilization of ultra-soft ground is achieved by solidifying the surface layer with cement, lime, etc., or laying sheets, nets, etc. if a slight bearing capacity can be expected, and laying sandy soil thinly on it. Is done by. In addition, when the surface is easy to level and the surface can be made uniform by sanding etc., a method of laying a block of styrofoam on it and constructing a lightweight roadbed has recently begun to be adopted.

By the way, the construction method using this Styrofoam block is carried out in the order of roughening the ground, laying sand, and laying blocks, but it is not possible to even roughen the ground on the super-soft ground or the ground where the surface is submerged. In many cases, it becomes extremely difficult to stack the blocks accurately.

If the Styrofoam block works as a unit, it causes plastic flow of the block that rises when a load is placed on the foundation ground, and the load is dispersed, so that roughening is not necessary and no sand is required. With the method of just arranging them, adhesion between blocks can hardly be expected, so that they cannot act together, and there is a problem that a step is generated in each block and subsequent construction becomes difficult.

The present invention has been made in view of the actual situation of the construction method using such a polystyrene foam block, and intends to solve the above-mentioned problems in construction by integrating the blocks.

[Means for solving problems]

The invention of claim (1) of the present invention is a flat plate-like base mat which is laid on a soft ground to form a base, and the base mat is a block made of a large number of Styrofoam shaped like a brick. It is arranged in a horizontal manner on the film-like body in a horizontal direction, and the film-like body is covered over the film-like body to apply tension to the periphery of both film-like bodies and fix them together in the horizontal direction to integrally bond them.

The invention of claim (2) is a flat plate-like base mat that is laid on soft ground to form a foundation, and this base mat is made of a large number of blocks made of styrofoam that are shaped like a brick, and are broken joint type. It is arranged in a horizontal direction on the film-like body, and the opposite edges of the film-like body are rolled up, the edges are tied with a rope, and this is tightened and the whole is pressure-bonded in the horizontal direction to be integrated.

The invention of claim (3) is a plate-shaped base mat laid on soft ground to form a foundation, and the base mat is made of a large number of styrofoam blocks formed in the shape of a brick and is made into a joint type. It is arranged horizontally, and the rope insertion hole and the mortar injection hole are formed in each block vertically and horizontally, and the whole is crimped and integrated by the binding of the inserted rope and the adhesive force of the injected mortar. It becomes.

The invention of claim (4) is a flat plate-like base mat that is laid on soft ground to form a foundation, and this base mat is made of a large number of blocks made of Styrofoam formed in the shape of a brick in a tear joint type. The blocks are arranged in a horizontal direction, an adhesive is applied between all the blocks, and an adhesive tape is wound on all the blocks to integrally press the whole block in the horizontal direction.

〔Example〕

 The present invention will be described below with reference to the drawings illustrating an embodiment.

The base mat A according to the present invention is formed by integrating a large number of blocks 1 made of styrofoam, which are molded into a brick, and is laid on a soft ground to stabilize it.

The blocks 1 are arranged horizontally in a tear-joint manner in order to prevent misalignment between them, and are pressed by compression means applied from the outer periphery.

FIG. 1 shows the first embodiment, and shows the case where the block 1 is integrated by a sheet 2 or a film body such as a net 3.

In this case, place the block 1 on the sheet 2 etc. spread out in the work yard adjacent to the construction site, place the block 2 on top of it, and apply tension to the area around both sheets 2, 2. The base mat A is manufactured by stopping them. When arranging the blocks 1 and 1, if necessary, a gibber-shaped shift stopper 4 shown in FIG. 2 is inserted between the end faces of the blocks 1 and 1 as shown by II to prevent a step from occurring.

In addition, if the entire block 1 is tightened from the outer circumference with a numbered wire or rope before the seats 2 and 2 are fastened together, the effect of integration is improved. At this time, in order to prevent breakage of the block 1 at the corner, it is necessary to place a contact plate here.

FIG. 3 shows a second embodiment. In this embodiment, after arranging the block 1, the net 3 or the sheet 2 is rolled up, ropes 5 and the like are tied between the ends thereof, and this is tightened to tighten the base mat A. Is formed.

In this base mat A, the blocks 1 at both ends are leaking, so that there is an advantage that it is well compatible with concrete or the like placed on it.

4 and 5 show a third embodiment. In the embodiment of FIG. 4, the block 1 is integrated with the rope 5 and the like by a mortar 6.

The block 1 arranged in the payout is provided with an insertion item 1a through which a rope 5 connecting the block 1 in the vertical direction and the horizontal direction is inserted and a mortar injection hole 1b. A plate 7 or the like is put on the outer peripheral surface of the block 1 in order to disperse the compressive force applied by the rope 5 or the like as a whole.

In the embodiments shown in FIGS. 5A and 5B, the rope 5 is inserted vertically and horizontally, respectively.

Also in this case, it is preferable to form protrusions or recesses that fit with each other on the end faces of the blocks 1 and 1 in order to prevent displacement when the blocks 1 and 1 are connected by the rope 5 or the like.

A steel rod may be used instead of the rope.

In the fourth embodiment of FIG. 6, the block 1 is integrated with the adhesive tape 8 and an adhesive.

An adhesive is applied between the blocks 1 and 1, and several blocks 1 are first adhered by this adhesive, and then an adhesive tape 8 is wound every several blocks and then the whole block 1 is integrated. At this time, if necessary, the outer circumference is wrapped with a wire or the like, and the whole is compressed.

The base mat A produced as described above is pulled in to a predetermined position by a bulltozer for wetlands or the like and set accurately. If there is surface water, drain it. Thereafter, as shown in FIG. 8, concrete 9, mortar 6 and the like are placed on the base mat A to integrate them, and sand, crushed stone, etc. are laid on the base mat A and leveled to roll the base mat A.
The work to prevent the levitation and the construction of the support board or roadbed is completed.

[Effects of the Invention] The present invention is as described above, the blocks are arranged horizontally in a tear joint type, and are integrated by a sheet, a rope, etc.,
Alternatively, since it is formed by an adhesive and an adhesive tape so that the whole body behaves as a whole, it is possible to prevent obstacles such as a step between the blocks, and therefore, concrete pouring, It is possible to easily and surely perform construction such as spreading and leveling sand.

[Brief description of drawings]

1, FIG. 3, FIG. 4 and FIG. 6 are perspective views showing an embodiment of the present invention, and FIGS. 2 I and II are perspective views, sectional views and 5-I and II are partial sectional views of the embodiment of FIG. 4, and FIGS. 7 and 8 are sectional views showing the construction procedure. A: Base mat, 1 ... Block, 1a ... Insertion hole, 1b
...... Mortar injection hole, 2 ... sheet, 3 ... net, 4
…… Slip prevention, 5 …… Rope, 6 …… Mortar, 7 ……
Plate, 8 ... Adhesive tape, 9 ... Concrete.

Claims (4)

[Claims] 1. A flat plate-like base mat which is laid on soft ground to form a foundation, wherein a large number of blocks of styrofoam molded in the shape of a brick are broken to form a joint on a membrane-like body. A base mat for soft ground stabilization, which is arranged horizontally in a horizontal direction and is covered with a film-like body on top of it to apply tension to the periphery of both film-like bodies and press them together in the horizontal direction to integrate them. 2. A flat plate-like base mat that is laid on soft ground to form a base, and the base mat is formed by breaking a large number of blocks made of Styrofoam in the shape of a brick on a membranous body in a jointed manner. A base mat for soft ground stabilization that is horizontally arranged in the horizontal direction and rolls up the opposite edges of the film body, ties the edges with a rope, and tightens the entire body by horizontally pressing it together. 3. A flat plate-like base mat which is laid on a soft ground to form a base, and the base mat has a large number of blocks made of Styrofoam formed in a brick shape and arranged horizontally in a tear joint manner. A soft ground is formed by forming rope insertion holes and mortar injection holes in each block vertically and horizontally, and by crimping the entire rope horizontally by the binding of the inserted rope and the adhesive force of the injected mortar. Base mat for stabilization. 4. A flat plate-like base mat which is laid on soft ground to form a base, and the base mat is a plurality of blocks made of Styrofoam molded in a brick shape and arranged horizontally in a tear joint manner. An adhesive mat is applied between all the blocks, and a soft ground stabilization base mat is obtained by winding an adhesive tape around all the blocks and horizontally pressing the whole to integrate them.