JPH08189230A - Structure of foundation - Google Patents

Abstract

PURPOSE: To provide the foundation with a short period of construction by placing a concrete block on a levelled lower frame, and uniting the concrete block and a pile into one body by a cement hardening body. CONSTITUTION: Plural bolts are driven along the longitudinal foundation to be formed in such a manner that the bolt fitting parts 11 of the pile upper end part are positioned above the bottom of a groove 15, and in some case, the fastening positions of nuts 14 are adjusted to adjust the lateral projecting length of the horizontal rod parts of the bolts 11 over the pile 1 so that the longitudinal rod parts 10 of the bolts 11 are positioned on a straight line part. Subsequently, a formwork is erected in the groove 15 in such a manner as to surround the projected part of the upper end part of the pile 1 above the bottom of the groove 15, mortar is filled in such a manner that the longitudinal rod part 10 is projected above, and in such a condition, a lower frame 3 is installed on the upper part. Subsequently, the fastening positions of the nuts 19 are adjusted to adjust the level of the lower frame 3, a concrete block 5 is placed on the lower frame, and mortar is poured from an upper opening of a vertically pierced hole part 6 to be filled in a clearance among the previously filled mortar, the lower frame 3 and the concrete block 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation structure such as a fence.

[0002]

2. Description of the Related Art Conventionally, foundations such as fences have been formed by digging the ground to form a groove, laying stones on the bottom of the groove, striking concrete on it, curing the concrete, and hardening the concrete. After that, the basic concrete is placed on the discarded concrete, the mortar is piled on the basic concrete, and the concrete block is placed on this. At this time, pulling the water thread, the level of each individual concrete block. It was necessary to construct it while taking it out.
In leveling each of these concrete blocks, the height was adjusted by adjusting the amount of mortar interposed between the basic concrete and the concrete block.

[0003]

In the above-mentioned conventional examples, it is necessary to cure the waste concrete and the basic concrete, and the concrete block cannot be constructed until the basic concrete is hardened. There is a problem that it takes a long time to level, and when leveling concrete blocks, leveling each individual concrete block while adjusting the amount of mortar interposed between the basic concrete and the concrete block, Leveling work is troublesome, and if an external force is applied to the concrete block after leveling and before the mortar hardens, the concrete block may sink and the level may not be accurate. It was

The present invention was invented in view of the above-mentioned problems of the prior art, and its purpose is to eliminate waste concrete and foundation concrete, to shorten the construction period and to accurately level. In providing the foundation structure.

[0005]

In order to solve the problems of the above-mentioned conventional example and to achieve the object of the present invention, the structure of the foundation of the present invention is a pile 1 driven into the ground and the pile 1. It is composed of a lower frame 3 connected by a connecting means 2 having a height adjusting function, and a concrete block 5 placed on the lower frame 3 and integrated with a pile 1 and a cement-based hardening body 4. .

[0006] Further, the cement type hardened body 4 filled from the hole 6 provided in the concrete block 5 to the hole 7 opened upward in the pile 1 and the hole 6 provided in the concrete block 5 to the pile. It is also preferable to provide a reinforcing bar 8 embedded in the cement-based hardened body 4 so as to extend over the hole 7 formed in the first hardened body 1. Further, the connecting means 2 is configured by the L-shaped bolt 11 including the horizontal rod portion 9 and the vertical rod portion 10, and the horizontal rod portion 9 of the L-shaped bolt 11 is inserted into the upper end portion of the pile 1. The length of the vertical bar portion 10 protruding from the pile 1 in the lateral direction is adjustably attached, and the vertical bar portion 10 is inserted into the through hole 12 provided in the lower frame 3 so that the vertical frame portion 10 has a lower frame 3 height. Adjustable mounting is also preferable.

[0007]

According to the present invention having the above-described structure, the pile 1 is driven into the ground, and the lower frame 3 is connected to the pile 1 while adjusting the height thereof by the connecting means 2. Put out
The concrete block 5 is placed on the leveled lower frame 3, and the concrete block 5 and the pile 1 are integrated by the cement-based hardened body 4 to form a foundation. By placing the concrete block 5 on the leveled lower frame 3 in this manner, it is not necessary to level the concrete block 5 during the placing work, and even before the cement-based hardened body 4 is hardened. The concrete block 5 does not sink. Then, by integrating the pile 1 and the concrete block 5 with the cement-based hardened body 4, it is possible to reliably and stably support the load from the concrete block 5, and as a result, lay stones as in the past and discard concrete. It is no longer necessary to make a structure of hitting concrete and hitting concrete.

[0008] Further, the cement type hardened body 4 filled from the hole 6 provided in the concrete block 5 to the hole 7 opened upward in the pile 1 and the hole 6 provided in the concrete block 5 from the pile 6 The concrete block 5 is reliably and firmly integrated with the pile 1 by providing the reinforcing bar 8 embedded in the cement-based hardened body 4 so as to extend over the hole 7 provided in the pile 1.

Further, L consisting of a horizontal bar portion 9 and a vertical bar portion 10
The connecting means 2 is constituted by the bolts 11 in the shape of L, and the horizontal bar portion 9 of the L-shaped bolts 11 is inserted into the upper end portion of the pile 1 so that the length of the vertical bar portion 10 projecting in the lateral direction from the pile 1 is increased. By adjusting the height of the lower frame 3 so that the lower frame 3 can be freely adjusted by inserting the vertical bar portion 10 into the insertion hole 12 provided in the lower frame 3,
The structure of the connecting means 2 is simplified, and the leveling of the lower frame 3 can be easily performed even if the piles 1 are driven in different degrees, and even if the driving position of the piles 1 is displaced in the width direction, the lower frame is used. The connection position in the width direction of 3 can be adjusted.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. The pile 1 is made of metal, and is configured by providing a bottom lid or the like with a sharp tip at a lower end portion of a metal pipe or the like, and a hole 7 is provided inside, and the hole 7 is opened upward. .
At the upper end of the pile 1, horizontal holes 13 are provided in two steps, one above the other.
A horizontal rod portion 9 of an L-shaped bolt 11 including a horizontal rod portion 9 and a vertical rod portion 10 is inserted through the horizontal hole 13, and the horizontal rod portion 9
It is fixed by a nut 14 that is screwed into. Here, as shown in FIG. 3, L attached to the upper end of the pile 1 in two steps
The bolts 11 having a shape are mounted so that the vertical bar portion 10 of the upper bolt 11 and the vertical bar portion 10 of the lower bolt 11 are located on both sides of the pile 1 and the vertical bar portion 11 faces upward. is there.

The pile 1 is driven into the ground from the bottom of the groove 15 excavated in the ground 28. In this case, the mounting portion of the bolt 11 at the upper end of the pile 1 is located below the bottom of the groove 15 as shown in FIG. Also, the pile 1 is driven so that it is located above. When excavating the trench 15, a shallow trench is formed over the longitudinal direction of the foundation to be formed, and a part of the shallow trench is partially formed slightly deep, and the pile 1 is partially formed deeply.
It is something that is driven into the bottom of. In forming the groove 15, the groove 15 may be formed only in a portion where the pile 1 is driven without forming a shallow groove. In any case, the amount of excavation is smaller than that of the conventional example in which a deep groove is dug over the entire length of the foundation to be formed for pouring concrete. Here, a plurality of piles 1 are driven along the position corresponding to the center line in the longitudinal direction of the foundation to be formed. When the driving position of the piles 1 is displaced in the direction perpendicular to the center line, the nut is Adjusting the tightening position of 14 adjusts the lateral projection length of the horizontal bar portion 9 of the bolt 11 from the pile 1, and the vertical bar portion 10 of the bolt 11 attached to the plurality of piles 1 is aligned. To be located. Although the above description shows an example in which the pile 1 is driven with the bolt 11 attached to the pile 1, the bolt 11 may be attached to the pile 1 after the pile 1 is driven.

A mold 16 is built in the groove 15 so as to surround a portion of the upper end of the pile 1 which protrudes above the bottom of the groove 15. In this state, the mortar 4a (concrete may be used). To fill. At this time, the upper portion of the vertical rod portion 10 of the bolt 11 is made to project above the upper surface of the mortar 4a. In this state, the lower frame 3 is attached to the upper portion of the vertical rod portion 10 of the bolt 11.

The lower frame 3 is made of a metal material having an L-shaped cross section. As shown in FIG. 2, the lower horizontal piece 17 of the lower frame 3 has elongated holes 12 at a plurality of longitudinal positions. Is formed. The upper end portion of the vertical bar portion 10 of the bolt 11 is inserted into the insertion hole 12, and the lower horizontal piece 17 of the lower frame 3 is clamped from above and below by the nut 19 screwed to the vertical bar portion 10 to be fixed. ing. In this case, the level of the lower frame 3 is adjusted by adjusting the tightening position of the nut 19. Therefore, the L-shaped bolt 11 constitutes the connecting means 2 for mounting the lower frame 3 on the pile 1 in a height-adjustable manner.
The lower frame 3 having an L-shaped cross section is attached in two rows so that the vertical pieces 20 face each other, and the concrete block 5 is fitted between the vertical pieces 20 of the two rows of the lower frame 3 and positioned. And is placed on the lower horizontal piece 17 of the lower frame 3. Here, the leveling of the lower frame 3 has been completed as described above, and therefore, the level of the concrete block 5 is set to the target level only by placing the concrete block 5 on the lower frame 3. Therefore, unlike the conventional method, it is not necessary to set the concrete blocks while leveling them one by one. Notches 21 are provided on both sides of the lower surface of the concrete block 5, and the upper ends of the bolts 11 projecting upward from the lower horizontal pieces 17 of the lower frame 3 are inserted into the notches 21 and stored therein.

When the concrete block 5 is set on the lower frame 3 in this manner, the mortar 4b (concrete may be used) is poured from the upper opening of the hole 6 provided in the concrete block 5 and penetrating vertically. 4b is filled in the space between the hole 6 and the mortar 4a previously filled with the lower frame 3 and the concrete block 5. The lower part of the pillar 26 of the fence 25 is inserted into the hole 6 of the concrete block 5, but the lower part of the pillar 26 of the fence 25 is previously inserted into the hole 6 of the concrete block 5 before filling the mortar 4b. Alternatively, after the mortar 4b is filled in the hole portion 6 and before the mortar 4b is cured, the support column 26 may be inserted and embedded in the mortar 4b filled in the hole portion 6.

The mounting of the lower frame 3 and the mounting of the concrete block 5 on the lower frame 3 are carried out before the mortar 4a filled in the mold 16 is cured. In this case, the lower frame 3 is piled. After the level of the lower frame 3 is determined to be supported by 1, the level of the concrete block 5 does not change even if the mortar 4a is in an uncured state. 8 in the figure
Is a rebar and is inserted from a hole 6 provided in the concrete block 5 to a hole 7 provided in the pile 1 and having an upper opening. The rebar 8 is provided before the concrete block 5 is set. Insert the lower part into the hole 7 of No. 1 and rebar 8 when setting the concrete block 5.
The upper part of the mortar 4b is inserted into the hole 6 of the concrete block 5, and then the hole 6 is filled with the mortar 4b, whereby the rebar 8 is inserted into the mortar 4a filled in the hole 7 and the mortar 4b filled in the hole 6. To be buried, or
After filling the holes 6 with the mortar 4b, the reinforcing bars 8 may be embedded from above the holes 6 to reach the holes 7 from the holes 6.

There is a case where the mortar 4a is filled into the hole 7 and a case where the mortar 4a is not filled and a case where the mortar 4b is filled is filled. In some cases. In this way, the foundation is constituted. By hardening the mortars 4a, 10b, the mortars 4a, 10b are integrally hardened to form the cement-based hardened body 4, and the cement-based hardened body 4 is used for concrete. The block 5, the pile 1, and the lower frame 3 are firmly integrated.

The gap between the side wall surface of the groove 15 and the lower end of the foundation is filled with soil. This backfilling can be performed even before the mortar 4a, 10b is cured. Therefore, according to the invention, one stake of the pile,
Filling mortar 4a, mounting lower frame 3, placing concrete block 5, placing mortar 4b, inserting rebar 8,
The soil can be backfilled in a short time regardless of the hardening of the mortars 4a and 10b.

A fence body 29 is attached to the pillar 26 of the fence 25.

[0019]

According to the invention of claim 1 of the present invention, as described above, the pile driven into the ground and the lower frame connected to the pile by the connecting means having the height adjusting function. When,
Since it is composed of a pile and a concrete block that is integrated with a cement-based hardened body placed on the lower frame, it is not necessary to form waste concrete and basic concrete as in the past, and a curing period for these is required. Therefore, it is possible to provide a foundation with a short construction period.Because the concrete block is mounted on a pile whose height can be adjusted freely and placed on a leveled lower frame, the concrete block can be set when setting the concrete block. It is possible to provide a foundation that saves the labor of leveling out one by one, and also, compared to the conventional one in which the foundation concrete is formed over the entire length of the foundation, the part where the piles are mainly placed Since it is only necessary to excavate the ground and shallowly excavate the other part, the amount of ground excavation can be reduced.

Further, in addition to the effect of the above-mentioned claim 1, in the invention of claim 2, in addition to the effect described in claim 1, filling is carried out from the hole provided in the concrete block to the hole opened upward in the pile. Since the cement-based hardened body and the reinforcing bars embedded in the cement-based hardened body so as to extend from the holes provided in the concrete block to the holes provided in the pile are provided, the concrete block is securely and firmly integrated into the pile. It is possible to form a strong foundation.

Further, in the invention according to claim 3, in addition to the effect according to claim 1 or claim 2, the connecting means is provided by an L-shaped bolt having a horizontal rod portion and a vertical rod portion. The horizontal rod portion of the L-shaped bolt is inserted into the upper end portion of the pile to adjust the lateral projection length of the vertical rod portion from the pile, and is attached to the through hole provided in the lower frame. The lower frame is attached to the vertical bar so that the height can be adjusted freely, so the lower frame can be connected to the pile with the height adjustable so that the level can be adjusted. Further, even if the driving position of the pile is shifted in the width direction, the connecting position of the lower frame in the width direction can be adjusted and the lower frame can be accurately connected to the pile.

[Brief description of drawings]

1 is a cross-sectional view of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view showing a state in which a bolt is attached to an upper portion of a pile used in the above.

FIG. 4 is a perspective view showing a set state of the above concrete block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pile 2 Connecting means 3 Lower frame 4 Cement-based hardened body 5 Concrete block 6 Hole 7 Hole 8 Reinforcing bar 9 Horizontal bar 10 Vertical bar 11 Bolt 12 Insertion hole

Claims (3)

[Claims] 1. A pile driven into the ground, a lower frame connected to the pile by a connecting means having a height adjusting function, a pile mounted on the lower frame, and integrated with the pile by a cement-based hardening material. Basic structure consisting of concrete blocks. 2. A cement type hardened body filled from a hole provided in a concrete block to a hole provided at an upper portion of a pile, and a cement-based hardened body extending from the hole provided in the concrete block to a hole provided in the pile. 2. The foundation structure according to claim 1, further comprising a reinforcing bar embedded in a cement-based hardened body. 3. An L-shaped bolt composed of a horizontal rod portion and a vertical rod portion constitutes a connecting means, and the horizontal rod portion of the L-shaped bolt is inserted into an upper end portion of a pile to form a vertical rod portion. It is characterized in that the protruding length in the lateral direction from the pile is adjustable, and the vertical frame is inserted into the insertion hole provided in the lower frame, and the lower frame is mounted on the vertical bar so that the height is adjustable. The base structure according to claim 1 or 2.