JPS59106619A - Formation of foundation to be buried - Google Patents

Abstract

PURPOSE:To easily construct a foundation in soft ground by a method in which blocks whose plane is of a cross form, having projected iron bars on their upper parts, are set in parallel on the ground and connected integrally with the iron bars, and concrete is placed. CONSTITUTION:Blocks (a) whose plane is of a cross form are set in parallel on soft ground, and iron bars 9 are integrally connected to corrugated iron bars 8 buried. Aggregate 11, e.g., gravel, sand, etc., is packed into the aperture 10 between the blocks (a), and concrete 12 is placed in a thickness enough to cover the iron bars 9 in a cross form. Stable foundation can thus be constructed by the generation of an effective buoyancy caused by the pressing of the ground in the soft ground area and also by the effective dispersive supporting of additional load.

Description

DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to form foundations on weak ground, particularly to form foundations for unique structures having a floating structure.

Therefore, in the past, Kefuko's 49 methods of forming foundations ('lt
Long piles are driven almost all the way to the bedrock, and the structure of the bedrock to support various types of loads is studied, and the earth pressure generated in rocky areas where there are no particularly satisfactory load characteristics is studied. The support structure of driven piles was secondarily studied by
It was in T.

In addition, a so-called floating dog-like plate structure was separately researched without using the pile method, but in both cases, the foundation structure was created as a large-scale construction. The stability of foundations and foundations often causes problems, such as sinking or floating, and this has been considered a critical issue when forming and using foundations.

The method of forming a foundation according to the present invention was devised in particular in view of the inconveniences in the method of forming the sub-F41J foundation, and involves simple juxtaposition of relatively small foundation blocks and A foundation of the desired size can be easily created by pouring concrete that unites the installed blocks, and without the use of large-scale construction equipment.

In addition, in the method related to this project, the soft ground itself is firmly held down, and the buoyancy of the blocks is effectively utilized to distribute and support the load applied from the foundation. 7:: The load is dispersed and supported by the blocks that make up the individual foundations, and the buoyancy provides stability.
The support structure is particularly noteworthy.

An example of a typical forming method for a buried foundation according to the present invention will be described below with reference to the attached drawings.
) to (1) towards the bottom of the intersection of the wheat culms (
2) is provided at a -1-point angle and is gradually thickened from each free end of the rod portion (1) toward the support (2) to provide a tapered surface (3), and the barley culm ( 2) has a tapered surface (4) in the shape of a truncated cone. -, a support plate (5) is placed slightly below the upper surface of the core rod part (1) so as to block i4 between the rod parts (1) and (1) of block a. The four parts (6) and
A recess (7) is provided.

Block a constructed in this manner naturally has block reinforcements buried therein, but in particular, the buried reinforcements (8) are made wavy, with the crest of the undulations projecting upward and laterally from the upper end surface of block a. [1. It is something that

In addition, the block a-a placed before the reinforcement processing
Fill the gaps (lq) between the concrete with gravel, sand, etc. with various types of aggregate (11) with good staining, and after performing the above-mentioned reinforcement treatment, the reinforcing bars (9) are The intended foundation was created by pouring concrete to a thickness that covered the area.

In this way, the foundations provided are based on various types of soft ground,
For example, it is of course possible to construct sports courts, parks, cargo yards, docks, airplane runways, etc., but also to construct factories and other buildings.

The method for forming a buried foundation according to the present invention is provided on the premise that blocks having different configurations as described above are used, so that specific effects of the above-mentioned characteristics can be expected. In particular, it is possible to provide a stable foundation structure by effectively generating buoyancy due to the effective pressing down of the ground in soft ground, and by effectively distributing and supporting the additional load.

Especially in block aK, the side edge of the rod (1) is the picture wall surface 0.
4, the mutual movement of the blocks a in the left and right direction is suppressed, and the internal abutment structure ensures that the inclination of each block a is suppressed. This makes it especially easy to create a horizontal level at the foundation. Also, due to the interposition of the surface OJ, leveling in the front, rear, left, and right directions can be achieved by simply arranging the blocks a side by side, making construction particularly easy.

(By the arrangement of the tapered surfaces (3) and (4), the loading claws added to the block a are distributed via the stacked surfaces (3) and (4) t
l. Since the block a is distributed over each supporting ground, there is less damage to the block a itself, and the lifting or sinking is relatively uniform, effectively preventing the risk of the block being tilted to accommodate the load capacity. In addition, by using the recess (7) in block a to hold down the ground, the integrity of block a and the installation ground is ensured, and the buoyancy force exerted by block a against the ground is reduced. is uniformly expressed by the four parts (7) to (7) arranged in the direction of uniform division into four sections, and the protrusion and depression in block aK are relatively free from occurring.

Next, due to the recess (6) and the unique method of reinforcing (8), the integration of block a and the base of concrete 1- (121) is almost complete, and it is supported by sufficient holding down soil. It is also composed of a floating structure.

In addition, individual blocks a were formed by pouring concrete +121 after filling the gap (l (leave l, aggregate 01 in the core) between blocks aX a.

The impact generated at point a is cut off at the edge of the gap (11), and fails without reaching the next block all m1, and the effect of various additional stresses generated in the foundation structure. It is ``6'' capable of solving a problem within a relatively narrow range.

The foundation forming according to the present invention has a unique structure on an upward slope, so it can be used not only on soft ground such as reclaimed land and sandy muddy ground, but also on general ground such as bedrock or gravel layer. This system promises to form various types of foundation structures relatively easily and at low cost without having to carry out extensive construction work.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a block according to the present invention, and Fig. 2 is a perspective view of the block according to the present invention.
-A sectional view, Figure 3 is a 4-B-B sectional view, Figure 4 is a perspective view of the block seen from the bottom, the fifth threshold is the bottom surface izo 1,
No. 61゛4 is Kfr rf'I + Figure 1, 1￥7 during construction
The figure is a cross-sectional view during construction as seen from another direction. 3
) (4)...Tapered surface, (5)...Supporting plate 1/-t, (6) (7)...Concave/curved, (13)+9)...
Strain, (] [J... Gap, (11)... Aggregate, (1!
J: Concrete, +131: Hanging wall surface. Special contract / Departure 1 person Kobayashi Brotsukegyo Co., Ltd. Agent Hara Ikuwa Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] The bottom surface of each rod in a rod-shaped block with a ten-shaped plane is made into a tapered surface with its free end facing inward and downward, and the lower end is shaped like a truncated cone at the center of the bottom surface of the block. A cough block, 10-shaped (
The crests 8 of the reinforcement bars forming the block form a wave-like shape on the upper surface of the foundation block in which the support plate part is integrally horizontally stretched between the V parts.
Prepare blocks that are made to protrude, arrange the blocks in a primary row so that the ends of the ten-shaped rods of the blocks are brought into contact sequentially, and use the protruding reinforcing bars of the blocks as a base. Qr required reinforcing bars are connected and integrated, and gravel and sand are placed in the space where the blocks are arranged.
A method of forming a foundation for burial, which is characterized by pouring concrete of the required thickness and width on top of the vaginal block after pouring the concrete.