JP2691872B2 - Foundation unit and foundation construction method using it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation unit used in foundation construction at a construction site and a foundation construction method using the same.

[0002]

2. Description of the Related Art In conventional general foundation work, temporary construction materials are loaded and unloaded, ground is excavated, and residual soil is disposed of at construction sites.
Leveling, sedimentation, waste concrete construction, marking out, formwork construction, rebar construction, foundation concrete inflow, anchor bolt embedding, foundation concrete drying, formwork removal, top level of foundation concrete, backfilling, mortar plastering, etc. Each step was carried out sequentially.

[0003]

The conventional foundation work has the following drawbacks.

(1) There are many work processes at the construction site, and the construction is prolonged.

(2) Rainy weather construction was impossible and was a cause of prolonged construction.

(3) Since the foundation is made at the construction site, it requires skill in work (inking, top leveling, mortar plastering, etc.), and labor costs and construction costs have also risen.

(4) When the construction site or the road around the construction site is narrow, or when the remaining soil disposal site is small at the construction site, the excavating machine or the vehicle for carrying in concrete for inflow and outflow of earth and sand by excavation (large truck or Getting in and out of a large raw concrete truck, and the work by the vehicle were complicated.

(5) It has been difficult to respond to requests for changes in floor plans and for extension and renovation.

In view of the above, it is an object of the present invention to provide a foundation unit for performing foundation construction in a short period of time at low cost and easily, and a foundation construction method using the same.

[0010]

The means for solving the problems according to the present invention is, as shown in FIGS. 1 and 13, a basic unit Y installed on a ground S that has been subjected to a leveling treatment and the like, which are adjacent to each other in the unit main body 1. on a surface facing the base unit Y for charge and
A groove portion 2 for filling a filler is formed, and a joint 9 for connecting to the adjacent base unit Y is formed in the groove portion 2,
10, and the adjusting bolt 13 is provided to adjust the height and level of the upper surface of the unit body 1, the adjustment bolt 13
It is screwed to the joint 10 .

The unit body 1 is formed by integrally molding a base portion 3 and a protrusion 4 provided upright at the center of the upper surface of the base portion 3 , and the groove portion 2 extends from the upper surface of the protrusion 4 to the base portion 3. The central groove 7 arranged in the vertical direction across the lower surface and the central groove 7 are sandwiched.
Therefore, the base 3 is arranged vertically from the upper surface to the lower surface.
It consists of a pair of left and right side grooves 8, and the adjusting bolt 13
It is provided in.

After leveling, the piles 15 are driven on the foundation construction line L and the piles 15 are inserted along the piles 15.
Place a semi-circular pipe 18 with a number of openings on it,
Sideways, avoiding the area near the foundation work line L and making concrete flush with both ends of the semicircular pipe 18.
The semicircular pipe 18 to the underground beam 18
Then, the positioning line of the base unit Y is attached to the ground S by the underground beam.
18 and pull the base units Y in parallel
The base units Y adjacent to each other are sequentially installed in accordance with the in, and the adjacent base units Y are connected by the joints 9 and 10.
The height and the levelness of the upper surface of each unit body 1 are adjusted with the adjusting bolts 13, and the filling material is flowed into the underground beam 18 from the groove portion 2 of each unit body 1 to form a gap between the base unit Y and the base S and a foundation. It was filled in the gap of the unit Y between basal Uni
The bottom Y and the base S are integrally fixed.

[0013]

In the above means for solving the problem, first, as shown in FIG. 7, the pile 15 is driven on the foundation work line L of the ground that has been leveled to improve the proof strength. Next, as shown in FIG. 9, pile
A plurality of openings through which each stake 15 is inserted are drilled along
Put the semi-circular pipe 18 so that both ends are on the upper side.
And avoid the area near the foundation work line L and half the concrete.
Inflow until it becomes flush with both ends of the circular pipe 18.
The semicircular pipe 18 is an underground beam 18, and a positioning line for positioning the base unit Y on the base S is drawn.
This completes the base treatment for installing the base unit Y.

Next, as shown in FIG. 10, a plurality of basic units Y selected in accordance with the foundation construction line L are sequentially installed in accordance with the positioning line of the base S, and each connecting body 9, 1 is connected.
By 0, adjacent base units Y are connected to each other. At this time, as shown in FIG. 11, the groove portion 2 of the unit main body 1 is located above the underground beam 18. When the base S is inclined or has unevenness so that the upper surfaces of the unit bodies 1 are not aligned, as shown in FIG.
The height and level of the upper surface of the unit main body 1 are adjusted by 3 to perform the top leveling.

After that, as shown in FIG. 13, the filling material flows from the groove portion 2 of each unit body 1 into the underground beam 18, and the gap between each base unit Y and the base, the gap between each base unit Y, and The filling material is also filled in the connecting portions of the connecting bodies 9 and 10, and by drying this, each base unit Y and the base S are integrally fixed, and the foundation work is completed.

[0016]

EXAMPLE As shown in FIG. 1, a base unit Y used for foundation work in one embodiment of the present invention has a filler (on the surface facing the adjacent base unit Y in a unit body 1 made of mortar or concrete). Grooves 2 for filling with mortar or concrete) are formed.

The unit body 1 has a base 3 having a substantially square shape in a plan view and a projection 4 having a substantially rectangular shape in a plan view, which is provided upright at the center of the upper surface of the base 3, and is integrally formed into a convex shape. ing. The front and rear surfaces M1 and M2 are surfaces facing the adjacent base unit Y, and the groove portion 2 is formed in each of them. A recess 5 is formed on the lower surface of the base 3 in parallel with the protrusion 4. In addition, a reinforcing bar 6 is embedded in the unit body 1 for increasing the strength of the unit body 1. In addition, in FIG. 1, 4a is an anchor bolt insertion hole for positioning the base formed in the center of the upper surface of the protrusion 4.

The groove portion 2 has a central groove 7 vertically arranged from the upper surface of the protrusion 4 to the lower surface of the base portion 3, and a central groove 7.
It is composed of a pair of left and right side grooves 8 arranged in the up-down direction from the upper surface to the lower surface of the base portion 3 with the center groove 7 and the side groove 8 communicated with the recess 5 at the lower portion of the base portion 3.

The central groove 7 is formed wide at a position corresponding to the front and rear surfaces of the base 3 in order to increase the filling amount of mortar or concrete and to improve the twist strength. A first joint 9, which is a connecting body for connecting to an adjacent base unit Y, is arranged above each central groove 7, and a second joint 10 which is also a connecting body is arranged in the center of each side groove 8. Has been done.

As shown in FIG. 2, the first joint 9 is formed by welding two bent iron plates and projects into an embedded piece 9a embedded in the unit body 1 and the central groove 7. And a T-shaped protruding piece 9b. As shown in FIG. 3, the second joint 10 is the same as the first joint 9, and is an embedded piece 10 a embedded in the unit body 1.
And a T-shaped protruding piece 10b protruding into the side groove 8 and having a bolt insertion portion 11 formed by curving a root portion of the protruding piece 10b. In addition, 9c in FIGS.
Reference numeral 10c denotes projecting pieces 9b and 10b when the base unit Y is molded.
This is a backing plate that prevents the inflow of mortar and concrete into the side base forming mold.

As shown in FIG. 4, the protruding pieces 9b of the first joint 9 and the protruding pieces 10b of the second joint 10 correspond to the protruding pieces 9b of the adjacent base units Y.
The base units Y are connected to each other via the connecting fittings 12. The connecting fitting 12
Is an iron plate that is pressed into an H shape and is bent, and the end portion is bent inward.

Also, the bolt insertion portion 11 of each protruding piece 10b.
As shown in FIG. 5, an adjusting bolt 13 which is an adjusting body for adjusting the height and the levelness of the upper surface of the unit main body 1 is screwed into the.

The base unit Y thus constructed is not limited to the above-mentioned type I, and the plan shape of the projection 4 is shown in FIG. 6 (a) so that it can be applied to any foundation construction line at a construction site.
There are prepared a plurality of types such as T-shaped shown in (1), L-shaped shown in (b), + -shaped shown in (c), and those having different dimensions.

Here, the basic construction by the basic construction method using the basic unit Y having the above structure will be described. First, FIG.
The hollow pile 15 is driven on the ground foundation work line L as shown in FIG. Further, as shown in FIG. 8, a semicircular pipe 18 having a plurality of openings for inserting the hollow piles 15 along the hollow piles 15 is covered,
The iron wire 17 is stretched in the upper groove 15a of each hollow pile 15 to improve the strength between the hollow piles 15 (between bases) (base construction).

Next, abandoned concrete construction is carried out. At this time, as shown in FIG.
The semicircular pipe 18 on the foundation construction line L is made into an underground beam by flowing in until it becomes flush with both ends of 8. Then, the inside and outside positioning lines of the base unit Y are drawn in parallel with the ground beam 18 by marking out, and the groundwork for installing the base unit Y is completed.

Next, as shown in FIG. 10, a plurality of basic units Y selected according to the basic construction line L are sequentially installed in accordance with the positioning line of the base S, and the first joints of the adjacent basic units Y are installed. 9 to each other and the second joint 1
The 0s are aligned and connected via the connecting fitting 12. At this time, as shown in FIG. 11, the concave portion 5 of the unit main body 1 is located above the underground beam 18. A gap may be provided between the adjacent base units Y, or the adjacent base units Y may be brought into contact with each other.

When the base S is inclined or has unevenness so that the upper surfaces of the projections 4 of the unit bodies 1 are not aligned, the tightening amount of each adjustment bolt 13 is set as shown in FIG. adjusting, by tilting the unit body 1 with respect to the base S, performs top portion leveling by adjusting the height and horizontal degree of the upper surface of the protrusion 4.

Thereafter, as shown in FIG. 13, when mortar or concrete flows in from the central groove 7 and the side groove 8 of each unit main body 1, it also flows into the underground beam 18 via the recess 5. At this time, if the adjacent base units Y are brought into contact with each other, mortar and concrete will not leak from between the adjacent base units Y, and if the unit body 1 is tilted due to adjustment, the unit body 1 A pad plate or the like may be provided in the gap between the base S and the base S to prevent the mortar or concrete from leaking.

As a result, mortar and concrete are filled in the gaps between the respective base units Y and the base S, the gaps between the respective base units Y, and also the connecting portions of the first joint 9 and the second joint 10, which are filled. By drying, the base units Y and the base S are integrally fixed, and the base work is completed.

As described above, in the foundation work at the construction site, since the basic unit Y is simply carried in and installed, the conventional temporary material carry-in / out, excavation, residual soil disposal, formwork work, rebar work, and basic concrete work. Inflow and dry,
The work steps such as formwork removal, backfilling, and mortar plastering can be eliminated, and the construction period can be greatly shortened, and moreover, it requires no skill to handle and can be handled by an unskilled worker, reducing labor costs and construction costs. Further, the basic unit Y can be mass-produced as a standard product in the factory, can be manufactured without being affected by the weather, and the construction period can be further shortened. further,
If the basic unit Y is manufactured in a well-equipped factory, it can be finished accurately and beautifully, and various kinds of basic units Y having different shapes and dimensions can be easily manufactured, and the range of basic work can be expanded. Moreover, it is possible to flexibly deal with changes in floor plans, expansions and renovations, etc. simply by rearranging the basic units Y.

Further, since the first and second joints 9 and 10 and the adjusting bolt 13 are provided in the groove portion 2 of the unit body 1 of the basic unit Y, each mortar or concrete can be simply flowed in from the groove portion 2 and each foundation The gap between the unit Y and the base S, the gap between the base units Y, the connecting portion between the first and second joints 9 and 10, and the adjusting bolt 1.
Mortar and concrete are also filled in 3, and these can be integrally fixed, so that the foundation installation work can be performed easily and surely.

Furthermore, since the earth and sand from the excavation do not come out and the mortar and concrete only flow into the gaps between the base units Y, only a small amount is required, and there is no need for the excavation machine, large trucks, and large ready-mixed trucks to move in and out. It can be used even if the construction site or the road around the construction site is narrow.

Furthermore, since the basic unit Y having a fixed shape is installed, the marking operation can be easily performed, and the height and the levelness of the upper surface of the unit body 1 can be easily and accurately adjusted by the adjusting bolt 13. Therefore, the reliability of foundation work can be improved.

Further, when the underground beam 18 is formed in the ground treatment and mortar flows into the ground beam 18 from the groove portion 2 of the unit main body 1, the foundation unit Y and the ground S are securely fixed together. You can

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. For example, the connection at the first joint 9 and the second joint 10 is performed without the connection metal fitting 12 being interposed.
Alternatively, the second joints 10 may be engaged or fitted with each other. Further, if the ground is hard ground in the ground treatment, pile driving may be unnecessary, or the foundation unit Y may be installed on the ground after the concrete is discarded without forming the underground beam 18.

[0036]

As is apparent from the above description, according to the present invention, it is only necessary to carry in and install the base unit in the foundation work at the construction site, and it is possible to carry in / out, excavate and leave the temporary material as in the conventional case. Disposal, formwork work, rebar work, basic concrete inflow and drying, formwork removal, backfilling,
The work process such as mortar plasterer can be abolished, the construction period can be greatly shortened, and it is possible for amateurs to deal with the work without requiring skill and it is possible to reduce labor costs and construction costs. In addition, the basic unit can be mass-produced as standard products in the factory,
It can be manufactured regardless of the weather and the construction period can be further shortened. Furthermore, if the basic units are produced in a well-equipped factory, they can be finished accurately and beautifully, and various types of basic units with different shapes and dimensions can be easily produced, expanding the range of basic construction work. Moreover, it is possible to flexibly respond to changes in floor plans, expansions and renovations, etc. simply by rearranging the basic units.

Further, since the connecting body and the adjusting body are provided in the groove portion of the unit body of the base unit, the gap between each base unit and the base and the gap between the base units can be obtained only by injecting the filler from the groove portion. news is also filled with filler connecting portion and adjustment of the coupling body, these can be one body secured, it can be carried out easily and reliably basic installation.

Further, since the earth and sand do not come out due to the excavation and the filling material only flows into the gaps between the base units, only a small amount is required, and there is no need for the excavation machine, large trucks, and large ready-mixed trucks to enter and leave the building site. It can be used even if the road around the construction site is narrow.

Furthermore, since a base unit having a fixed shape is installed, the marking operation can be easily performed, and the height and levelness of the upper surface of the unit main body can be easily and accurately adjusted by the adjusting body. , The reliability of foundation work is improved.

Further, when the underground beam is formed in the base treatment and the filler is flown into the underground beam from the groove portion of the unit body, the base unit and the base can be securely fixed to each other.

[Brief description of the drawings]

FIG. 1 is a perspective view of a base unit according to an embodiment of the present invention.

FIG. 2 is a perspective view of a first joint.

FIG. 3 is a perspective view of a second joint.

4A and 4B are diagrams showing connection between joints, in which FIG. 4A is a perspective view thereof, and FIG. 4B is a plan view thereof.

FIG. 5 is a perspective view showing an adjustment bolt.

FIG. 6 is a view showing basic units having different shapes, (a)
Is a plan view of the T-shaped base unit, (b) is a plan view of the L-shaped base unit, and (c) is a plan view of the + -shaped base unit.

FIG. 7 is a diagram showing a state in which hollow piles are driven on a foundation construction line, (a) is a perspective view thereof, and (b) is a longitudinal sectional view thereof.

FIG. 8 is a view showing a state in which a semi-circular pipe and an iron wire are applied to a hollow pile, (a) is a perspective view thereof, and (b) is a longitudinal sectional view thereof.

FIG. 9 is a diagram showing a groundwork after abandoned concrete construction,
(A) is the perspective view, (b) is the longitudinal sectional view

FIG. 10 is a plan view when a plurality of foundation units are installed at the foundation construction line position.

FIG. 11 is a diagram showing a state in which the foundation unit is installed at the foundation construction line position.

FIG. 12 is a diagram showing a state in which a foundation unit is installed at a foundation work line position on an inclined foundation.

FIG. 13 is a view showing a state in which mortar flows in from the groove of the base unit.

[Explanation of symbols]

 1 Unit Main Body 2 Grooves 9, 10 Connection Body 13 Adjuster Body 15 Piles 18 Underground Beam L Foundation Construction Line S Basement Y Foundation Unit

Claims (3)

(57) [Claims] 1. A base unit installed on a ground that has been subjected to a leveling treatment , for filling a surface of the unit body facing an adjacent base unit with a filler.
Groove is formed, the groove portion, and a joint for connecting the adjacent basic units, and adjusting bolt for adjusting the height and horizontal degree of the upper surface of the unit main body is provided on the adjustment bolt is the joint A basic unit characterized by being screwed together. Wherein said unit main body includes a base portion, the base portion
A protrusion that is erected at the center of the upper surface is integrally formed, and the groove portion is a central groove that is vertically arranged from the upper surface of the protruding portion to the lower surface of the base, and the central groove is sandwiched between the central groove and the central groove. The base unit according to claim 1, comprising a pair of left and right side grooves arranged in a vertical direction from an upper surface to a lower surface of the base portion, and the adjustment bolt is provided in the side groove. 3. A pile is driven into a foundation construction line after leveling, and a plurality of openings are formed along the pile to insert each pile.
Covered so that both end portions of the semi-circular pipe is in the upper, semicircular pipe concrete to avoid the vicinity of foundation work line
A semicircular pie by flowing until it becomes flush with both ends of
Positioning line of foundation unit on the ground
Position multiple foundation units by pulling parallel to the underground beam
Sequentially arranged and installed in accordance with the line, the adjacent basic units to each other as well as connected by a joint, the height and level of the upper surface of the unit body adjusted by adjusting bolt, the ground beam from the groove of the unit body Filling material flows in and fills the gap between the base unit and the base and the gap between the base units to integrate the base unit and the base
Basic construction method utilizing basic unit according to claim 1 or 2, wherein the fixing to.