KR-102963434-B1 - TUBE PIPE FOR HORIZONTAL DRAINING LAYER STRENGTH AND STRENGTHING CONSTRUCTION METHOD USING

Abstract

In the method for solidifying a horizontal drainage layer using a tube pipe according to the present invention, efficient solidification is achieved without drilling the structure when solidifying soft ground, thereby reducing drilling costs and overcoming the problem of reduced structural durability caused by drilling. In addition, during the inversion tube insertion step, foreign substances remaining inside the horizontal drain pipe are pushed out and removed, and during the inversion tube volume reduction step, a volume to be expanded is secured by supplying grout to the manhole tube from the limited volume of the horizontal drain pipe, and simultaneously, during the inversion tube discharge step, a volume can be secured for drainage through the horizontal drain pipe after the grout has cured. In addition, during the manhole tube insertion stage, a space for inserting the manhole tube is secured, and during the solidification stage, the pressurizing force generated from the manhole tube into the soft ground is directed only to the second area among the cross-sectional areas of the horizontal drain pipe, thereby protecting the horizontal drain pipe and enabling efficient solidification targeting the soft ground with a minimum amount of grout, and after grout curing, a drainage space can be secured so that the horizontal drain pipe can function properly.

Inventors

• 전정욱

Assignees

• 주식회사 제로원아이피

Dates

Publication Date

20260513

Application Date

20240222

Claims (3)

1. delete
2. An inversion tube insertion step in which an inversion tube is inserted through a tube inversion method into a horizontal drainage pipe provided for horizontal drainage at the bottom of a building or civil engineering structure built on soft ground; A step of reducing the volume of an inversion tube by discharging water through one side of the inversion tube; A manhole tube insertion step in which grout is supplied through a supply means provided on one side of the outside of the horizontal drain pipe, thereby inserting a manhole tube in the same direction as the direction in which the inversion tube is inserted; and A soft ground hardening step in which high pressure is supplied to the above manjet tube through the above supply means to harden the soft ground through a chemical injection method; In the above inversion tube insertion step, foreign matter remaining inside the horizontal drain pipe is pushed out and removed, and The above-mentioned inversion tube volume reduction step is characterized by securing a volume to be expanded while supplying grout to the manjet tube from the limited volume of the horizontal drain pipe, and The method further includes a reverse tube discharge step of drawing out a hold rope provided on one side of the reverse tube to discharge the reverse tube to the outside of the horizontal drain pipe, and A method for solidifying a horizontal drainage layer using a tube pipe, characterized in that, in the above-mentioned inversion tube discharge step, a volume is secured through the above-mentioned horizontal drainage pipe after grout curing.
3. In paragraph 2, In the above inversion tube insertion step, Water is supplied to the above-mentioned inversion tube through the supply means, and expands into a first volume having a first surface area with the entire length and inner diameter of the horizontal drain pipe, and In the above inversion tube volume reduction step, The horizontal drain pipe is contracted to a second volume consisting of the total length of the horizontal drain pipe and a second area excluding the area where the horizontal drain pipe is buried in soft ground from the first area, In the above manhole tube insertion step, a space for inserting the manhole tube is secured, and A method for constructing a solidification of a horizontal drainage layer using a tube pipe, characterized in that, in the solidification step, the pressurizing force generated from the manjet tube to the soft ground is directed only to the second area among the cross-sectional areas of the horizontal drainage pipe.

Description

Tube piping for horizontal drainage layer strength and strength construction method using the same The present invention relates to a tube piping for solidification construction that compacts soft ground into a solid foundation ground by utilizing a horizontal drainage layer provided in a structure built or constructed on soft ground, and a solidification construction method using the same. Generally, soft ground refers to ground in a state where it cannot support superstructures. Examples include soft clay, loose sandy soil, and organic soil. If roads, bridges, or buildings are placed directly on ground composed of soft clayey or organic soil, settlement will become excessive, and insufficient bearing capacity will lead to safety issues. Soft ground improvement is a method that eliminates safety issues when constructing a target object by improving soft ground where such problems are anticipated. In the case of roads, construction requires a solid foundation; since avoiding soft ground sections inevitably leads to excessive construction costs, this applies to work to raise the ground to the hardness required for construction. Types of general soft ground drainage methods include: 1) methods to increase consolidation strength by shortening the consolidation drainage distance through drainage, such as the DRAIN method; 2) methods to consolidate soft ground using impact or vibration loads, such as the dynamic compaction method; 3) methods for electro- or chemical solidification and suction, such as the chemical injection method; 4) methods for forced replacement, such as the replacement method; 5) methods for lowering the water level through forced drainage, such as the WELL POINT method; and 6) methods for draining water using embankment and sand mats. Meanwhile, the pipe roof method and the concrete roof method are known as methods for reinforcing soft ground during civil engineering work. However, these conventional soft ground drainage methods are fundamentally based on vertical solidification through drilling; consequently, the material costs and labor costs incurred due to additional drilling are astronomical, and since drilling causes damage to buildings or structures, they also face the problem of reduced durability. In addition, regarding soft ground drainage methods, the most important factor, even setting aside cost issues, is whether the soft ground reinforcement—that is, drainage performance—can be guaranteed. In the case of hardening through drilling as described above, the structure ensures drainage performance with an even distribution as the number of drilling holes increases. In other words, the number of drilling holes and drainage performance are proportional, which has limitations as it leads to increased costs and increased damage to the building. Figure 1 shows a method for solidifying a horizontal drainage layer using a tube pipe according to the present invention. Figure 2 shows the overall configuration of a tube piping for the solidification construction of a horizontal drainage layer according to the present invention. FIG. 3 shows a cross-sectional view of a horizontal drain pipe and a tube unit in a tube piping for the solidification of a horizontal drainage layer according to the present invention, and the force acting on the soft ground from the solidification. FIG. 4 shows a hardening hole provided at the bottom of a horizontal drain pipe in a tube pipe for hardening construction of a horizontal drainage layer according to the present invention. Hereinafter, embodiments are described in detail with reference to the attached drawings. However, various modifications may be made to the embodiments, and thus the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, and substitutions to the embodiments are included within the scope of the rights. Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed forms, and the scope of this specification includes modifications, equivalents, or substitutions that fall within the technical concept. Terms such as "first" or "second" may be used to describe various components, but these terms should be interpreted solely for the purpose of distinguishing one component from another. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that a component is "connected" to another component, it should be understood that it may be directly connected to or joined to that other component, or that there may be other components in between. The terms used in the embodiments are for illustrative purposes only and should not be interpreted as intended to be limiting. Singular expressions inclu