UNDERGROUND EARTH RETENTION STRUT CONSTRUCTION METHOD USING HORIZONTAL FRAME STRUCTURE

• US 20080075540A1
• Filed: 09/27/2006
• Published: 03/27/2008
• Est. Priority Date: 09/27/2006
• Status: Active Grant

• Current Assignee: Baro Construction Key-Technology Co., Ltd.
• Original Assignee: Baro Construction Key-Technology Co., Ltd.
• Inventors: Kim, Kwang-Man
• Granted Patent: US 7,887,247 B2
• Time in Patent Office: Days
• US Class Current: 405/276
• CPC Class Codes: E02D 17/202 with flexible securing means
• CPC Class Codes: Y10T 403/341 Three or more radiating members
• CPC Class Codes: Y10T 403/342 Polyhedral
• CPC Class Codes: Y10T 403/344 Plural pairs of axially aligned members
• CPC Class Codes: Y10T 403/345 Coplanar

Abstract

An underground earth retention strut construction method using a horizontal frame structure is disclosed, in which since a vertical member is formed after a horizontal frame structure is first installed and completed, it is possible to minimize any interference between the vertical member and the horizontal frame structure for thereby achieving an easier construction and enhancing a construction quality. The interval of the temporary vertical member is widened during an underground excavation work, so that the ground excavation work is easy. The improved horizontal frame structure of an architecture comprises a pair of straight members which are connected by at least one plate; and a “#”-shaped connection member which is connected at a portion in which the straight members cross with each other.

Claims

1. In a horizontal frame structure of an architecture, an improved horizontal frame structure, comprising:

a pair of straight members which are connected by at least one plate; and

a “

#”

-shaped connection member which is connected at a portion in which the straight members cross with each other.

2. The structure of claim 1, wherein in the center of said connection member, an engaging member is vertically formed for an engagement with the temporary column which supports the horizontal frame structure.

3. The structure of claim 1, wherein a unit member forming the straight member and the connection member is a hollow pipe.

4. The structure of claim 3, wherein in the center of said connection member, an engaging member is vertically formed for an engagement with the temporary column which supports the horizontal frame structure.

5. The structure of claim 3, wherein a non-shrinkage mortar is filled in the interior of the pipe.

6. The structure of claim 5, wherein in the center of said connection member, an engaging member is vertically formed for an engagement with the temporary column which supports the horizontal frame structure.

7. The structure of claim 3, wherein a flange having a plurality of through holes is formed at the ends of the straight member and the connection member for thread engagements.

8. The structure of claim 7, wherein in the center of said connection member, an engaging member is vertically formed for an engagement with the temporary column which supports the horizontal frame structure.

9. The structure of claim 1, wherein a unit member forming the straight member and the connection member is a H-beam.

10. The structure of claim 9, wherein in the center of said connection member, an engaging member is vertically formed for an engagement with the temporary column which supports the horizontal frame structure.

11. The structure of claim 10, wherein said plate is formed of a plurality of plates which are spaced apart from each other.

12. The structure of claim 11, wherein said horizontal frame structure is installed at every floor during the excavation process and is formed of a strut structure which supports the earth retention wall.

13. An underground earth retention strut construction method, comprising:

a first step in which an earth retention wall and a temporary column are installed at a surrounding portion of a ground in which an underground architecture is built;

a second step in which a ground is excavated by a certain depth, and earth and sand are discharged;

a third step in which a rim beam is installed at an inner side of the earth retention wall;

a fourth step in which a horizontal frame structure of one among claims 1 through 8 is installed at the rim beam so that the horizontal frame structure is supported over the temporary column;

a fifth step in which a ground is further excavated by a depth of one floor, and earth and sand are discharged;

a sixth step in which a ground is excavated by a desired depth by sequentially repeating the third, fourth and fifth steps, and the horizontal frame structure is installed in a multiple-tier structure;

a seventh step in which a mat slab is installed at a floor of the ground which is excavated through the above steps;

an eighth step in which a vertical reinforcing member is installed between the connection members of the horizontal frame structure which is installed in a multiple-tier structure;

a ninth step in which the temporary column is removed; and

a tenth step in which a column is installed at the vertical reinforcing member, and an underground structure is built using a permanent structure along with the horizontal frame structure.

14. The method of claim 13, wherein a certain groove is formed at one surface of the rim beam during the construction of the rim beam of the third step for compensating a length error of the horizontal frame structure which is installed at the fourth step.