KR20020085104A - A method of construction for earth-protection walls of building - Google Patents

Abstract

PURPOSE: A sheathing method for a construction work is provided to shorten a period of construction, to reduce construction expenses and to enlarge the area of the basement for use. CONSTITUTION: The sheathing method for a construction work comprises the steps of: driving H-piles(14) with connecting bars(12) fixed to an H-steel into a hole bored through the ground(A), then fixing a wale for a strutted beam on the upper end of H-piles(14); pitting from the front of H-piles(14) toward an interval among H-piles(14), then interposing a back panel backward, connecting both sides of a reinforcing bar(26) with the connecting bars(12) of the H-piles(14), adhering a front panel to the front of the H-pile(14), then refilling up the pitted part; pulling out the back panel as soon as placing concrete(32) between the front panel and the back panel, then curing the concrete surface; and removing front panels by pitting the front ground of the front panels.

Description

A method of construction for earth-protection walls of building}

The present invention relates to a construction mudstone method.

Conventional retaining walls can be divided into thumb piles and horizontal board walls, steel sheet pile walls, contiguous pile walls, cast-in-place concrete pile walls, and diaphragm walls. Only underground continuous walls could be used as a main body structure (permanent wall) of the building, and the rest of the walls were temporary walls, which were often used to damage surrounding buildings and to cause various safety accidents.

In the case of the conventional underground continuous wall, in order to prevent the collapse of the excavation surface and the penetration of the groundwater, the trench is excavated to the desired depth while supplying a stabilizer to a trench of a certain width, and then the individual panels of the reinforced and reinforced concrete in the ground As the continuous cross section was formed, it could damage the surrounding buildings during the construction of the wall due to the large construction section, the construction period was long, the construction cost was high, and it caused the environmental pollution problem by the stabilizer. It was required, and there was a problem such as insufficient to use as a permanent structure.

Therefore, the conventional retaining walls have a problem that the construction period is long, the construction cost is high, as well as the lack of safety accident prevention, because the concrete retaining wall had to be separately constructed as a main structure of the building after construction.

The present invention has been made in order to provide a construction mudpole construction method that can also be utilized as the main body structure of the building.

1 is a perspective view illustrating a form of a thumb pile applied to the present invention.

2A to 2D are plan views showing the process of the process according to the present invention.

Figure 3a is a longitudinal cross-sectional view of the wall completed by the method according to the present invention.

3B is a cross-sectional view taken along the line II of FIG. 3A.

As shown in FIG. 1, the present invention provides an earth drill to the ground A as shown in FIG. 2A of a thumb pile 14 welded to the H-shaped steel 10 with V-shaped welded reinforcing bars 12. ) Into the perforated hole 16 at regular intervals, injecting sand 18, and fixing the support belt length 20 to the upper end of the thumb piles 14 exposed above the ground 10. Supporting the piles 14, and as shown in Figure 2b to dig between the thumb piles 14 in front of the thumb pile 14 to secure the work space 22, the thumb piles 14 of The rear panel 24 is inserted in close contact with the back, and the connecting bars 12 of the thumb piles 14 are extended to connect both sides of the reinforcing bar 26 with the connecting bars 12, and then the thumb piles 14 The front panel 28 is in close contact with the front panel, the work space 22 is backfilled with soil, and the backfilled soil 30 is chopped to secure the front panel 28. 2C, and the rear panel 24 is pulled out immediately after pouring the concrete 32 between the front panel 28 and the rear panel 24, as illustrated in FIG. 2C. Curing the concrete 32 in a state where the concrete 32 is filled even in the place where it was, and as shown in FIG. 2d, all the front grounds A of the front panels 28 are destroyed and the front panel 28 is removed. ) To complete the retaining wall (B) to serve as a permanent wall forming the body structure of the building by removing all).

As shown in FIGS. 2D, 3A, and 3B, the front wall of the retaining wall B can be constructed with the normal waterproof wall C and the waterproof protective wall D in sequence.

In the figure, reference numeral E denotes rebar for slab connection.

In the present invention, the reason for injecting the sand 18 into the hole 16 in which the thumb pile 14 is embedded is to preserve the H-shaped steel 10 and the connecting reinforcing bar 12 so that foreign matter does not get into the hole, 16) In addition to preventing ground subsidence of the surrounding buildings due to pressure differences with the surrounding ground, the panels 24 and 28 can be easily inserted to be in close contact with the H-shaped steel 10, and the H-shaped steel 10 can be easily inserted. This is because it can improve the coating state of the concrete 32 to be poured.

The reason why the rear panel 24 is pulled out immediately after pouring the concrete 32 is that the back side of the H-beam 10 is also covered with concrete 32, and the soil and concrete of the soil of the ground A are covered (32). This is because it is possible to improve the orderability of the retaining wall (B) by allowing the cement components of) to be cured while being mixed.

And the process of digging between the thumb piles 14, the connection of the reinforcing steel (26) and the process of pouring concrete 32 to the whole of the thumb piles 14 in consideration of the size of the earth construction, ground conditions, etc. It may be carried out at a time as a target or divided into two pairs by one pair of two thumb piles 14 as illustrated in Fig. 2b, 2c.

The present invention can obtain a retaining wall that also serves as a permanent wall constituting the main structure of the building, it can significantly shorten the construction period compared to the conventional construction of retaining wall and retaining wall forming a permanent wall, construction cost It can also greatly reduce, there is an advantage such as to increase the available area inside the basement floor.

Claims (2)

The thumb pile 14 fixing the reinforcing bars 12 to the H-beams 10 is inserted into the hole 16 drilled in the ground A, and the support belt 20 is attached to the upper end of the thumb piles 14. Fixing step, Deburring between the thumb piles 14 at the front of the thumb piles 14 and inserting the rear panel 24 at the rear thereof, and connecting the reinforcing bars 12 of the thumb piles 14 to both sides of the reinforcing bars 26. And the front of the thumb pile 14, the front panel 28 is in close contact with the step of filling the burrow, and Immediately after placing the concrete 32 between the front panel 28 and the rear panel 24, the rear panel 24 is pulled out so that the concrete 32 is filled in the place where the rear panel 24 was located. Curing step, A construction mudstone construction method characterized in that the construction of the retaining wall (B) through the step of removing the front panel 28 by breaking the front ground of the front panel (28). The construction mudstone construction method according to claim 1, wherein sand (18) is injected between the hole (16) bored in the ground (A) and the thumb pile (14).