KR20090007826A - Plain wall-mounted wall blocking method - Google Patents

Abstract

The present invention installs a plurality of casings in a predetermined ground and inserts a plurality of bundles of reinforcing bars into the inner space of the casing, and after grouting by injecting mortar grout into the reinforcing bars and the inner space of the casing, the grout In the order wall retaining method which draws the casing to the ground before hardening or solidification, after the grout is hardened and continuously installed a plurality of columnar shapes or columnar shapes such as square columns, the accompanying drawings are shown. As in 5D, these grout-cured pillars are fitted with a reinforced reinforcement casing connected to shield the periphery, and inside the reinforcement casing is filled with a mortar grout, which is connected continuously like a grout in the casing for a solid and complete Plain paper characterized by forming an order wall as a support Prosthesis wall blocking method.

Description

Process of blocking water penetration and blocking earth collapsing by using impermeable wall without strut}

1 is a cross-sectional view and a plan view, respectively, illustrating a process of forming an excavation hole in the ground and inserting a casing therein to insert a casing in the ground;

Figure 2 is an explanatory view showing the installation of reinforcing bars in the casing of Figure 1 above.

FIG. 3 is an explanatory view showing grouting by filling a grout with a space in the casing of FIG.

4 is an explanatory view showing the state of the casing after the up-draw and the draw of the casing shown in FIGS.

5A to 5D show a state in which the grouts of FIGS. 3 and 4 are continuously formed in a row.

Figure 5A is a state diagram before the reinforcement case installation,

Figure 5B is a state diagram after installing the reinforcement case,

5C is a state in which grouting is performed in a reinforcement case;

Figure 5D shows a state diagram after removing the reinforcement case in Figure 5C, respectively.

Fig. 6 is a rear view of Fig. 5C as viewed in the direction of the arrow.

7 (A) to (E) are explanatory diagrams showing the process sequence when installing the anchor through the order wall for stronger support and safety of the order wall WL generated by FIGS. 5A to 5D.

<Explanation of symbols for the main parts of the drawings>

1. Casing 2, 2`. Reinforced Casing

3. Rebar 4, 4`. grout

11. Anchor Home 12. Grout in Anchor Home

H. Excavator G. Soil

WL. Order wall P. Excavation space

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an unsupported order wall retaining method and apparatus for underground support and ground support in various construction sites. More specifically, a specially shaped reinforcing casing is provided, and the double wall system of the reinforcement wall and the reinforcement formed with the grout in which the reinforcing bars are planted completely prevents leakage and further improves the support of the reinforcement wall. It is about public law.

Conventionally, H-Beam, which is a support type (STRUT), should be installed when constructing the earth block for underground order, and additional work by dismantling the support (STRUT) in the existing construction method when installing the building structure later There were many problems such as air problem, JOINT problem, and wall crack problem. Accordingly, the present invention relates to an unsupported order wall retaining method and related apparatus for solving these problems.

Conventionally, the prior art of the present invention is the Republic of Korea Patent Publication No. 10-2005-39549 of the present inventors 'self-supporting order wall barrier using an anchor body and a connection socket for the same'. In this method, after the ground drilling, the steel pipe is inserted, the anchor body with the steel wire is inserted, the concrete is placed on the anchor body to form a fixing body, the rigidity is given to the steel wire, and the load gauge is installed at the upper end of the steel wire. After the crowning in the steel pipe, the order wall installation step 10 for placing cap concrete on the head of the anchor body, and the anchor body is attached to the inside of the installed order wall, and fixed to the intersection of the steel wire of the anchor body After attaching the connection socket 50, by giving rigidity to the steel wire, fixed the steel wire intersected inside the connection socket, after driving the steel bar 55 on the outer wall of the order wall reinforcement step of connecting the steel pipe (P) ( 20) and a self-supporting barrier wall mudwork using an anchor to form a barrier wall by injecting a reinforcement PE 60 to the outer side of the barrier wall.

However, even when the above-mentioned conventional technology drills the ground very deeply and performs the excavation work and the order wall clogging work in the same ground, the safety guarantee problem still arises seriously. In particular, when the ground is soft ground, the safety problem is seriously raised due to the ground collapse problem due to earth pressure and groundwater. However, when the deep ground is excavated or the ground is soft ground, the safety guarantee is almost impossible with the prior art.

The present invention is to complement and solve the problems of the prior art as described above, between the casing (casing) and the casing (casting) that is cast for forming the order wall without separately installing the support such as H-beam at the construction site The reinforcement casing is installed in the space to improve the support of the order wall, and in parallel with the anchor body that supports the order wall, it also serves as a sure support wall and prevents leakage of the masonry. It is an object of the present invention to further enhance the.

In order to achieve the above object, the present invention installs a plurality of casings in a predetermined ground and inserts a plurality of bundles of reinforcing bars into the casing inner space, and injects mortar grout into the reinforcing bars and the casing inner space inserted into the casing After grouting, the casing is drawn onto the ground before the grout is cured or solidified.

After the grout is cured and continuously installed in a column shape such as a plurality of cylinders or square columns, the reinforcing casings connected to the pillars formed by curing these grouts are connected as shown in FIGS. 5A to 5D. And a mortar grout is also filled in the reinforcing casing to be continuously connected like the grout in the casing to form a barrier wall as a solid and complete support.

In addition, in the case of deep construction of the ground excavation and requires more safety guarantee, the anchor structure is separately installed in the support structure to achieve a perfect order and support of the order wall.

Hereinafter, an embodiment will be described in detail with reference to the accompanying drawings. First, Figure 1 shows that the casing (1) is inserted into the excavation hole (H) formed by excavating the ground (G) for inserting the casing (1).

As shown in FIG. 2, the reinforcing bar 3 is inserted into the casing 1 at a predetermined interval around the inner circumference of the casing, and mortar grout is injected into the air gap between the casing 1 and the reinforcing bar 3 so that the casing 1 Grouting (4) as shown in FIG. At this time, when inserting the reinforcing bar, it is necessary to ensure a space for installing the anchor body across the casing later. In the grouting operation, the casing 1 is pulled upward from the excavation hole H before the grout 4 filled in the casing 1 becomes solid as in FIG. 4.

By blocking the grout between the grout (4) and the grout (4) with the surrounding casing (2) (2`) to prevent leakage and improve the bearing wall support.

The upper and lower ends of the reinforcing casings 2 and 2 'have various shapes such as, ∧, ∩, trapezoid, and the like. The space between the reinforcing casing 2 (2 ') and the cured grout (4) is newly grouted as shown in FIG. 5C to fill it with grout (4') and a perfect order wall (WL), as described above with grout (4). To form.

The reinforcing casing (2) (2`) separately drills a plurality of through holes (21) on the surface of the order-side casing (2`) of the reinforcing casing (2) (2`) and reinforces the casing through the through holes (21). The mortar grout 4 'injected into the inside flows out and covers the surface of the reinforcing casing 2', thereby making it possible to harden the bond between the ground and the order wall. In this case, the mortar grout (4`) flows out and is completely sealed to the surroundings.

On the other hand, when the excavation ground is deep and especially soft ground, the excavation space (P) is formed by excavating the inside of the working wall (WL) work space as shown in FIG. 7 (A) for more fundamental order wall support and safety assurance construction. In addition to the above-mentioned order wall WL, it can be reinforced. In this case, construct them in the installation order shown in Figs. 7A to 7E.

As shown in Fig. 7 (B), the anchor body forms an anchor internal groove 11 in the ground G through which the barrier wall is supported, and the rear end of the anchor body 11 is formed in the groove G. Supporting the order wall WL with the reinforcing bar 12 as a core by inserting a bent reinforcing bar 12 and then filling and grouting the mortar grout 13 inside the anchor groove 11 as shown in FIG. 7E. An anchor is installed.

The reinforcing bars in the casing inserted into the ground and the reinforcing bars in the casing inserted into the working surface of the order wall may be used as steel pipes, pc strands, FRPs, geotextiles, and the like.

The present invention improves the contact portion, verticality problem and improves the bearing capacity and water repellency by the self-contained water barrier cladding wall at the same time to separate the ground piles and the earthquake method at various temporary construction site H-beam used as a support (strut and wale) is not used because the ground grotto works in the form of unsupported beams are prevented and safety accidents are eliminated during construction, and the strut interference is completed when the grotto is completed. The problem of reinforcing bars and air delay due to dismantling of wall cracks and struts does not occur, and it is not necessary to use complicated and cumbersome means such as buttings, thereby increasing the working space and improving safety. You can.

Claims (3)

 A plurality of casings are installed on a predetermined ground, and a plurality of bundles of reinforcing bars are inserted into the inner space of the casing, and mortar grout is injected and grouted into the reinforcing bars and the inner space of the casing. In the order wall retaining method which draws the casing above the ground before it solidifies, After the grout is cured and continuously installed in a column shape such as a plurality of cylinders or square columns, the reinforcing casings connected to the pillars formed by curing these grouts are connected as shown in FIGS. 5A to 5D. And a mortar grout in the reinforcing casing, and connected continuously like the grout in the casing to form a barrier wall as a solid and complete support. The method of claim 1, The upper and lower ends of the reinforcing casings 2 and 2 'have a shape of-, ∧, ∩, trapezoid, and the surface of the order-side casing 2' of the reinforcing casings 2 and 2 '. In this case, a plurality of through holes 21 are formed and the mortar grout 4` injected into the reinforcing casing flows out through the through holes 21 to cover the surface of the reinforcing casing 2 'so that the connection between the ground and the order wall is hard. Plain wall-mounted mud-blocking method, characterized in that it is made to make. A plurality of casings are installed on a predetermined ground, and a plurality of bundles of reinforcing bars are inserted into the inner space of the casing, and mortar grout is injected and grouted into the reinforcing bars and the inner space of the casing. In the order wall retaining method which draws the casing above the ground before it solidifies, After the grout is cured and continuously installed in a column shape such as a plurality of cylinders or square columns, the reinforcing casings connected to the pillars formed by curing these grouts are connected as shown in FIGS. 5A to 5D. And a mortar grout is also filled in the reinforcing casing and connected continuously like the grout in the casing to form a barrier wall as a solid and complete support. In addition, in the case of deep construction of the ground excavation and requires more safety guarantee, by installing an anchor body separately in the following steps in the support structure, the unsupported type of the support wall is designed to support the order and the perfect order. Retaining wall earthing method. (Iii) forming an anchoring groove 11 in the ground G through which the order wall is supported; (Ii) then inserting the reinforcing bar 12 whose rear end is bent into the groove 11; (Iii) Next, as shown in FIG. 7 (E), by filling and grouting the mortar grout 13 inside the anchor groove 11, the order wall WL supporting anchor with the reinforcing bar 12 as a core is installed. .

Images