JPS60184129A - Method of driving foundation pile for latticed wall - Google Patents

Abstract

PURPOSE:To construct the foundation which is excellent in a support force and an earthquake resistant force, by a method wherein foundation piles, which are continuously connected with each other, are simultaneously driven by means of a 3-shaft agitating rod by the use of an improved hardener, the foundation piles are continuously connected in a lattice shape, and intersection parts and corner parts are filled with a core body. CONSTITUTION:By means of a 3-shaft rod 9 having agitating vanes 12 and injection holes 13, which is located at the lower end of a driving machine 7 having a 3-shaft swivel 8, triplex foundation piles 2 are simultaneously driven in a ground, where foundation is intended to be constructed, by the use of an improved hardener. The foundation piles 2 are continuously driven, in order, to construct a latticed wall 6, and the intersection parts and corner parts of the foundation piles 2 are filled with a core body 3, such as steel pipes, and are cured to construct a foundation. This enables a total foundation to be integrally constructed, and enables provision of the foundation which is high in a supporting strength, earthquake resistant force, and horizontality.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing foundation piles for lattice-like walls, which are constructed by continuous foundation piles, which are constructed using an improved hardening agent in the ground for the foundations of various buildings.

Generally, the foundation construction method using prepared piles for this type of building is as follows:
The method of constructing foundation piles by sequentially improving the entire area of the foundation has the disadvantage that it requires many construction times and time because the entire area is created evenly, and a large amount of hardening agent, etc. is required. It has drawbacks such as being expensive. In addition, if the foundation piles are constructed one by one using a construction machine, the horizontal force in the lateral direction against the created foundation piles will be greatly weakened, which is technically not reliable. There is a drawback.

This invention is intended to solve such conventional problems, and its main gist is that the construction machine has a three-axis suipel device located at the lower end of the ground constituting the foundation. Using a triaxial stirring rod equipped with stirring blades and injection holes, three foundation piles made of improved hardener are connected and constructed simultaneously. In addition, the constructed foundation piles will be successively installed on the lattice wall. The foundation is constructed by filling and hardening core bodies such as various steel pipes inside the intersection parts or corner parts of the foundation piles constructed on the lattice-like wall.

Therefore, according to the present invention, the foundation piles are continuously constructed using a plurality of piles prepared using a soil improving solidifying agent, so that the entire foundation can be integrated very easily and quickly, and the vertical and horizontal forces can be easily and quickly constructed. However, compared to the conventional method of building a single foundation pile by sequentially connecting them, the horizontal force in the lateral direction is significantly strengthened, and compared to the method of building the entire area of the foundation. This has the effect of significantly reducing the amount of materials used and being economical. In addition, since the core is inserted and hardened at the intersections and corners, it is possible to obtain sufficient vertical support force and horizontal support force, which has the property of being able to sufficiently support the structure.

Next, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a slope view of the entire building on which a building built on a foundation table completed by the construction method of the present invention is placed. is a foundation structure built on a lattice-like wall, and this foundation structure (1) consists of a large number of foundation piles (21 (2)
It is composed of +... This foundation pile (
21 (21...... is the construction machine (7) described below.
), and as shown in Figures 2 and 3, lattice-like lattice walls (
6) (61 (6)...) This lattice wall (6) (61 is
Steel pipes inside the foundation piles (2) at intersections or corners before hardening of the cement.

A core body (31Ta2) having various cross-sectional shapes such as H steel is inserted and hardened.
・・・・・・A rectangular space inside the lattice (
4) ((trans)).(5) is constructed on top of the foundation structure (1) and represents various buildings.Next, the construction machine (7) ) has a 3-shaft swivel device (8) located at the top, and three rods (9) at the bottom end of the 3@swivel device (8).
1(9) are connected. The rod (91 (91
(At the lower end of 91, an earth auger machine aα is installed, and at the lower end there are three stirring rods αn (111 (1
1) are connected via a reducer or the like so that they can be raised and lowered.

Each of the stirring rods αυ (Lυ) is equipped with several stirring blades α, α3, etc. for stirring on the outer periphery, and
There is an injection hole (
13(11(1:I) are drilled in each. Code (1
1k”L.

This shows the ground where construction will be carried out.

In this invention, construction is carried out using the above-mentioned construction machine (7), and the construction machine (7) is installed at the place where the foundation pile (2) is to be created, and generally, the construction machine (7) is installed in the place where the foundation pile (2) is to be created. As shown in
By the driving rotation operation of the 3-axis swivel device (8) and the earth auger machine αG, parallel rotation f, -3 continuous stirring c-:)'l'a11(lnallka full'FX)
(along with laaaaaa, the hardening agent is injected from the injection hole <13 (l) with pressurized air, or the curing agent is not injected and is penetrated down to a predetermined depth while uniformly mixing, as shown in Fig. 6 (Fig. 9). Mix, stir and pull out.

In addition, there are times when the foundation pile (2) is constructed while injecting a hardening agent together with pressurized air only during this pulling process. In addition, as shown in Figure 6) and (E), by digging and mixing again, or by pulling out and mixing again, as shown in Figures 2 and 3, the foundation pile (21 (2 + (21) By one lifting and lowering mixing operation, three units are connected and created as one.

The foundation piles (2), old, and so on built in three series are successively connected in a grid pattern to form a grid wall (6). Before the curing agent of the foundation pile (2) at the preset intersection or corner portion of the lattice wall (6) and the connected lattice wall (6) is hardened, the core body (3) such as a steel pipe ( 3) are respectively inserted and buried and solidified to form the column or wall portion α of the building (5).
4 is the part where the core body (3) (3) is embedded and is received.

As described above (according to the method of constructing foundation piles for lattice walls using an improved hardening agent in the ground according to the present invention).

Because the solidified foundation piles form a structure that integrates the entire foundation with continuous walls in the form of a lattice, it has the effect of significantly increasing bearing capacity, vertical force, and horizontal force, and is technically reliable. , a very economical basic structure can be obtained. In addition, this invention is similar to the conventional foundation pile that is constructed in single units.
There is no need to worry about the weakness of the horizontal force, the foundation is made sufficiently strong, and the improvement rate of the ground is lower than when building the entire area of the foundation, so construction costs are significantly reduced, making it extremely economical. be.

Furthermore, according to this invention, horizontally continuous foundation piles are created simultaneously using a three-axis stirring rod each having a stirring blade and an injection hole, so the construction capacity is extremely high, and the construction capacity is extremely high. Because the foundation piles are built in duplicate, they have sufficient strength and water-stopping properties. By filling and hardening core bodies such as tubular steel at the intersections and corners of each lattice-shaped wall, the building has even greater vertical and horizontal bearing capacity. It has the practical effect of being able to fully achieve the following.

[Brief explanation of drawings]

Fig. 1 is a partially cut-out slope view of a structure placed on a foundation pile using the foundation pile construction method for a lattice-like wall according to the present invention, and Fig. 2 is a slope view of the lattice-like wall in its construction state. , Figure 3 is a cross-sectional plan view, Figure 4 is a partially enlarged slope view with important parts of Figure 1 removed, Figure 5 is a front view of the construction machine used in this method, Figure 6 ←) 7(E) are ground plan views sequentially showing the construction process of the present invention, and the reference numeral (1) indicates the foundation structure. (2) is the foundation pile, (3) is the core, (4) is the space, (6
) is a lattice wall, (7) is a construction machine, and (8) is a t23-axis swivel device. (9) is the rod, α0 is the earth auger machine, (il
l Gt stirring rod, (13G'! injection hole. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In a foundation pile construction method for a lattice wall in which connected foundation piles are continuously created by mixing and stirring an improved hardening agent in the ground, the foundation piles are constructed using a stirring blade located at the lower end of a construction machine having a three-axis swivel device. Three sets of foundation piles in the horizontal direction are created simultaneously using three stirring rods equipped with injection holes, and the three sets of foundation piles are sequentially constructed in a grid-like wall with rectangular spaces. A method for constructing a foundation pile for a lattice-like wall, which comprises filling and hardening a core such as a steel pipe into the unhardened interior of the foundation pile located at the intersection or corner portion of the lattice-like wall.