KR20200097547A - Underground wall maintenance and underground wall construction method and maintenance policy - Google Patents

Abstract

The present invention relates to a structure for maintaining an underground wall, which can prevent an outer surface of the underground wall embedded in the ground from directly coming in contact with water and soil and continuously prevent deterioration of the wall. More specifically, the structure for maintaining an underground wall includes: an underground facility embedded in the ground after excavation; a covering part installed on the outer surface side of the underground wall of the underground facility; a support part coupled to the underground wall to support the covering part; and covering foam filled between the underground wall and the covering part, thereby preventing the outer surface of the wall from directly coming in contact even when the outer surface of the wall except a vertical beam of the underground wall is embedded in the ground.

Description

Underground wall maintenance and underground wall construction method and maintenance policy}

The present invention relates to an underground wall, and more particularly, the outer surface of an underground wall buried in the ground prevents direct contact with water and soil and can continuously prevent aging of the wall. It relates to an underground wall maintenance structure and an underground wall construction method and maintenance method applicable to a contractor and architect who constructs an underground wall.

In general, the wall part facing the outer wall of an underground structure is easy to infiltrate moisture from the outside, and condensation (condensation) is likely to occur due to the temperature difference between the wall and the interior.

However, due to the nature of the underground structure, ventilation is difficult, so that once infiltrated moisture is not dried well, whitening or mold is generated, which is not beneficial for appearance and health.

In addition, in the case of high-rise underground structures (apartments) that have been constructed more than 20 years old, underground parking facilities were not fully equipped due to the necessity of a parking lot at the time of construction or due to conditions under the building law.

On the other hand, in the case of old underground structures as described above, reconstruction is required in a state that has undergone considerable deterioration, but reconstruction is delayed due to the difficulty of construction and the disadvantage that considerable costs have to be invested. The situation is that they are taking risks as they are in the life environment.

In order to solve the above problems, conventionally, a waterproofing treatment such as adding a waterproofing agent or applying a waterproofing agent to the surface of the concrete composition was performed during the mixing process.

However, the sidewall of an underground structure is prone to microscopic cracks due to contraction and expansion and hydration heat due to repetitive temperature difference between winter and summer, and when the added waterproofing agent ages, groundwater penetrates inside the sidewall of the underground structure. Condensation water is generated inside the side wall of the structure due to the temperature difference between the inside and the outside.

To overcome the shortcomings of the waterproofing method, there was a method of constructing the outer wall of an underground structure in a double-walled structure, but this construction method not only requires a lot of work time and labor, but also takes up a lot of space due to the characteristics of the double-walled structure. A new problem arises in that the usable indoor space is narrowed.

By using the assembly wall drainage plate, patent application No. 2004-0051417 "Wall Drainage Plate" filed for a certain size that can be easily applied to existing walls, has a beautiful appearance, and exhibits superior drainage and moisture-proof effect than using a waterproofing agent. The wall is formed by assembling the cap in the groove provided on the base plate of the wall, but this coupling method is vulnerable to temperature changes due to structural characteristics, and the panel finish is bent in the same direction with respect to the bent surface of the wall, and the phenomenon of lifting or bending between panels There was a problem that is prone to this.

In addition, in recent years, remodeling work using repairs, reinforcement and extension of existing apartments is being activated, and as the current standard of living improves among the above remodeling works, the possession of automobiles increases, resulting in landscaping and walking Underground parking was desperately needed to improve the living environment including safety.

Accordingly, various attempts have been made according to the extension of the underground parking lot. As an example, a method using a concrete panel has been proposed as in Patent Application Publication No. 10-2004-0092200.

However, when a long period of time passes by constructing an underground wall using the construction method using a concrete panel as described above, when the exterior surface is corroded or cracked by groundwater or surface permeation water, leakage of water flowing into the interior occurs. There was this.

In addition, in the case of leakage of water in the conventional underground wall, bonding treatment or grouting to prevent leakage was re-implemented in the basement interior to prevent water inflow to the interior. However, the outer surface of the basement wall was continuously exposed to water and There was a problem that corrosion or parts phenomenon occurred due to the erosion of lime.

However, the outer surface of a conventional underground wall is buried underground even if erosion or corrosion by water occurs, so that reinforcement or repair work is impossible.

For this reason, even if the underground wall is buried in the ground, it does not directly contact the soil and water, prevents corrosion of concrete when it comes into contact with water leakage, and at the same time, an improved basement wall that can periodically replace the corrosion and water contact prevention member. There is an urgent need for a maintenance structure.

Registration number 10-0709315 Basement wall finishing member and its construction method Etc. 10-0955520 Basement wall finishing member Registration number 10-1387954 Underground wall construction method for extension of underground parking lot Registration number 10-0995506 Underground wall construction method using two-row pile

The present invention has been conceived to solve the above problems, the underground wall maintenance structure and the underground wall construction method and maintenance method to prevent direct contact even if the outer surface of the wall excluding the vertical beam among the underground walls is buried in the ground There is a purpose to provide.

And, another object of the present invention is to install a shield member on the vertical beam so that the underground wall is not exposed.

In addition, another object of the present invention is to install a plurality of support for supporting the shielding member in the underground wall to respond to the behavior or load of the soil underground.

In addition, another object of the present invention is to fill a shielding foam in the form of a foam between the basement wall and the shielding member to prevent the insulation function and moisture barrier function, and the aging of the basement wall.

As such, another object of the present invention is to be able to re-inject the shielding foam from the underground indoor side after removing it when the durability period of the shielding foam has elapsed.

In the basement wall maintenance structure according to an embodiment of the present invention, in the structure of an underground wall that is buried in the ground and forms an underground space, after digging for building construction, a plurality of vertical beams formed vertically along the basement wall are formed. At the lower end of the basement wall, an underground structure forming a floor beam integrated with a vertical beam, a shielding plate installed spaced apart from the underground wall in the vertical beam and the floor beam of the underground structure, and the upper part of the basement wall not buried in the ground. A shielding portion made of a shielding cover to be coupled, a plurality of fastening holes formed at points corresponding to the area of the shielding portion in the basement wall, and a supporting portion formed of a plurality of supporting tools fastened to the fastening hole to support the shielding portion, It provides an underground wall maintenance structure, characterized in that after removing part of the earth, a shielding foam is formed between the basement wall or the shield.

In addition, the shielding foam is configured to pulverize and remove the corroded shielding foam using a separate grinding suction device 200 by opening the shielding cover of the shielding portion when the endurance and service life are completed. Provides a remuneration structure.

In the method of constructing a basement wall for an underground wall according to an embodiment of the present invention, in the method of constructing an underground wall that is buried in the ground and forms an underground space, a form for constructing the basement wall is constructed after constructing the earth plate at the same time as the ground is dug. Underground structure construction step of constructing such that vertical beams and floor beams are formed on the outer surface of the basement wall by pouring concrete into the formwork after passing the foundation step, and after passing the underground structure construction step, vertical beams and floor beams After applying the coating solution to the surface and undergoing a curing process, the shielding plate is constructed, and the vertical beams and floor beams exposed to the ground, and the shielding section construction step of combining the shielding cover on the top of the shielding plate, and the shielding section construction step, A support part installation step of fastening a support hole to the basement wall to support the shielding plate, and after passing through the support part installation step, a shielding foam injection step of injecting and filling the shielding foam between the basement wall and the shielding part is constructed. Provides a method of constructing an underground wall.

In addition, after the step of installing the support, it provides an underground wall construction method, characterized in that the support force is adjusted by adjusting the fastening distance of the support according to the load concentration of the shielding plate buried in the ground.

In the method of maintaining an underground wall according to an embodiment of the present invention, in the maintenance method of an underground wall that is buried in the ground and forms an underground space, the shielding foam filled in the space formed by the basement wall, vertical beam, floor beam, and shielding plate When silver corrosion proceeds, the cover opening step of opening the shielding cover, after the cover opening step, crush and suction the old shielding foam using a separate grinding suction device 200, and then remove the foam that fastens the shielding cover. Step, After passing through the foam removal step, one of the support holes installed in the installation hole of the basement wall to support the shielding plate, one of the support holes located at the bottom and the top, is disassembled, and a separate shielding foam through the fastening hole located at the bottom It provides an underground wall maintenance method, characterized in that it is configured to refill the shielding foam until leakage is confirmed through the fastening hole located at the top using the filling device 300.

In addition, it provides an underground wall maintenance method, characterized in that configured to determine the degree of deterioration by removing the cap from the sampling hole formed in the center of the support and then collecting the shielding foam using a sampling holder.

According to an embodiment of the present invention, there is an effect of preventing direct contact with the outer surface of the underground wall except for vertical beams, even if they are buried in the ground.

In addition, by installing a shield member on the vertical beam so that the underground wall is not exposed, there is an effect of preventing the underground wall from direct contact with water or soil, and delaying corrosion and aging.

In addition, there is a structurally safe effect by installing a plurality of support holes for supporting the shielding member on the underground wall to respond to the behavior or load of the underground soil.

In addition, there is a condensation phenomenon and a secondary blocking effect by filling a foam-type shielding foam between the basement wall and the shielding member with an insulation function and a moisture barrier function, and for preventing the aging of the basement wall.

When the durability period of the shielding foam has elapsed, it can be removed and re-injected inside the basement, thereby stably protecting the underground wall for a long time.

In addition, the aging shielding foam can be pulverized and removed from the outside, and then re-injected easily in the underground room, thus making the construction simple.

1 is an exploded perspective view of an underground wall maintenance structure according to the present invention,
Figure 2 is a perspective view of a shield plate coupled to the underground wall maintenance structure according to the present invention,
Figure 3 is a perspective view of a shield cover coupled to the underground wall maintenance structure according to the present invention,
4 is a plan view of an underground structure according to the present invention,
5 is a front view of an underground structure according to the present invention,
6 is a cross-sectional view of an underground structure buried in the ground according to the present invention,
7 is a cross-sectional view in which a shielding plate is installed in an underground structure buried in the ground according to the present invention,
8 is a front view showing a process of installing a support in an installation hole of an underground structure,
9 and 10 are a flow chart and a flow chart showing the underground wall construction method according to the present invention,
11 is a cross-sectional view constructed according to the underground wall construction method according to FIGS. 9 and 10;
12 and 13 are a flow chart and a flow chart showing the underground wall maintenance method according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various forms and is not limited to the embodiments described herein. The same reference numerals are assigned to similar parts throughout the specification.

As shown in Figs. 1 to 8, when the configuration of the present invention is described below with reference to the accompanying drawings, the underground wall maintenance structure relates to a structure of an underground wall that is buried in the ground and forms an underground space. An underground facility 10 buried in the ground after destruction, a shielding part 20 installed toward the outer surface of the basement wall 11 of the underground facility 10, and the shielding part 20 by being coupled to the basement wall 11 The basement structure 100 is constituted by a supporting part 30 and a shielding foam 40 filled between the basement wall 11 and the shielding part 20.

First, the underground structure 100 forms a plurality of vertical beams 12 vertically formed along the basement wall 11 after digging for building construction, and a vertical beam at the lower end of the basement wall 11 To form an underground facility (10) forming a floor beam (13) integrated with (12).

In the present invention, the underground structure 100 is constructed by constructing the basement wall 11 for forming an underground space in a square shape, and forming a vertical beam 12 on the outer surface of the basement wall 11, and perpendicular to the vertical beam 12 Construct floor beams 13 that interconnect the lower ends of beams 12.

An installation end 16 for installing the shielding part 20 is installed on each front surface of the vertical beam 12 and the floor beam 13, and even if the installation end 16 is not formed, the shielding part 20 is It will be installable.

The vertical beams 12 and the floor beams 13 protrude from the basement wall 11, and in the present invention, it is preferable to construct to protrude in a range of about 5 to 7 cm.

In addition, on the vertical beam 12 and the floor beam 13 of the underground facility 10, the shielding plate 21 installed to be spaced apart from the underground wall 11 and the top of the underground wall 11 not buried in the ground. To form a shielding portion 20 made of a shielding cover 22 to be combined.

The shielding plate 21 of the shielding part 20 may be made of a metal material, a synthetic resin material, a stone material, and the like, and in the present invention, it is preferable to be made of a synthetic resin material.

The shielding plate 21 is inserted into the installation end 16 of the vertical beam 12 and the floor beam 13 and then fastened using anchor bolts to form a filling space (S).

The shielding cover 22 is fastened to the upper end of the shielding plate 21 using bolts, and is installed so as to be exposed to the top of the ground so that it can be disassembled and installed as necessary.

The shielding cover 22 is installed to remove the obsolete shielding foam 40 or to check the condition.

Meanwhile, a plurality of fastening holes 14 are formed in the basement wall 11 at points corresponding to the area of the shielding part 20, and a plurality of fastening holes 14 are fastened to the fastening holes 14 to support the shielding part 20. To form a support portion (30) consisting of the support (31).

The support part 30 constructs a plurality of fastening holes 14 in the basement wall 11 corresponding to the size of the shielding plate 21, and the fastening hole 14 has an arm so that the support hole 31 is spirally fastened. It is installed by fastening the fastening holder 14a in which the spiral is formed.

According to the basic concept of the design, most of the underground structures 100 are constructed by digging the ground in a square shape and at the same time constructing a formwork while carrying out earth protection work using an earth plate, and then pouring and curing concrete.

The support 31 may be made of a metal material or a synthetic resin material, and a cylindrical shape is preferable, and a male spiral for fastening is formed on the female spiral of the fastening hole 14 on a part of the outer surface.

After removing the cap 33 from the sampling hole 32 formed in the center of the support 31, the shielding foam 40 is collected to determine the degree of aging.

In order to check the degree of aging of the shielding foam 40, remove the cap 33 and partially disassemble the support 31 from the fastening hole 14, and if the shielding foam 40 is visible through the sampling hole 32, separate It can be checked by collecting the shielding foam 40 by inserting the tongs or holder of the sampling hole 32.

In addition, after removing some of the support holes 31 of the support part 30, a shielding foam 40 that is filled between the basement wall 11 or the shielding part 20 is formed.

The shielding foam 40 is for filling the filling space S created by being spaced apart from the underground wall 11 by the shielding plate 21 fastened to the vertical beam 12 and the floor beam 13, and It would be desirable to use.

The shielding foam 40 can be filled using a separate shielding foam filling device 300 after opening the shielding cover 22, and can be injected through the fastening hole 14.

The shielding foam 40 is pulverized using a separate grinding and suction device 200 by opening the shielding cover 22 of the shielding part 20 when the endurance and service life are completed. Can be removed.

An embodiment of a method for constructing an underground wall configured as described above will be described with reference to the following.

As shown in Figs. 9 to 11, it relates to a method of constructing an underground wall that is buried in the ground and forms an underground space, the basic step of constructing a form (S1), and an underground structure construction of constructing the underground structure 100 Step (S2), the step of installing the shielding part 20 on the vertical beam 12 and the floor beam 13 (S3), the step of installing the support part 31 in the basement wall 11 (S4), it consists of a shielding foam injection step (S5) filling the shielding foam 40 through the fastening hole 14.

The foundation step (S1) is a step of constructing a form for constructing the basement wall 11 after constructing an earth plate at the same time as the ground is dug.

Thereafter, after passing through the foundation step (S1), concrete is poured into the formwork to construct an underground structure construction step (S2) in which vertical beams 12 and floor beams 13 are formed on the outer surface of the basement wall 11. Enforce.

In the underground structure construction step (S2), a fastening hole 14 is installed in the basement wall 11, and an installation end 16 is installed when constructing the vertical beam 12 and the floor beam 13.

Next, after the underground structure construction step (S2), a coating solution is applied to the vertical beams 12 and the floor beams 13 to undergo a curing process, and when the coating layer 15 is formed, the shielding plate 21 is constructed. And, the vertical beam 12 and the floor beam 13 exposed to the ground, and the shielding section construction step (S3) of combining the shielding cover 22 on the upper portion of the shielding plate 21 is carried out.

The shielding plate 21 is inserted into the installation end 16 when curing of the vertical beams 12 and the floor beams 13 is completed, and then fixed with anchor bolts for construction.

Next, after passing through the shielding part construction step (S3), a support part installation step (S4) of installing to support the shielding plate 21 by fastening the support hole 31 to the basement wall 11 is performed.

When the curing of the basement wall 11 is completed, the support 31 is spirally fastened to the female spiral of the fastening hole 14, and the fastening of the support 31 is a shielding plate 21 Tighten until contact is complete.

The support 31 is not installed in all of the fastening holes 14, and the support 31 is not fastened to one fastening hole 14 located at the bottom and one fastening hole 14 located at the top.

Thereafter, after passing through the support part installation step (S4), a shielding foam injection step (S5) of injecting and filling the shielding foam 40 between the basement wall 11 and the shielding part is performed.

After passing through the support part installation step (S4), the support force is adjusted by adjusting the fastening distance of the support tool 31 according to the load concentration of the shielding plate 21 buried in the ground.

Looking at the state of use of the underground wall maintenance method configured as described above is as follows.

As shown in Figs. 12 to 13, it relates to a maintenance method of an underground wall that is buried in the ground and forms an underground space, the cover opening step of opening the shielding cover 22 (S10), the aging shielding foam ( It consists of a foam removal step (S20) of removing 40), a refilling step (S30) of refilling the new shielding foam (40).

In the cover opening step (S10), the shielding foam 40 filled in the space formed by the basement wall 11, the vertical beam 12, the floor beam 13, and the shielding plate 21 is (22) is open.

The shielding cover 22 is removed from the shielding plate 21 after dismantling the bolts to expose the aged shielding foam 40.

Thereafter, after passing through the cover opening step (S10), the old shielding foam 40 is pulverized and removed using a separate grinding suction device 200, and then the foam removal step of fastening the shielding cover 22 (S20) ).

In order to remove the old shielding foam 40 in the foam removal step (S20), the support 31 fastened to the basement wall 11 is disassembled and then pulverized in a mixer method using a pulverizing suction device 200 to vacuum Inhalation is carried out by inhalation.

Next, after going through the foam removal step (S20), the support holes (31) installed in the fastening holes (14) of the basement wall (11) to support the shielding plate (21) are located at the bottom and the top ( 31) one by one, and using a separate shielding foam filling device 300 through the fastening hole 14 located at the bottom, until the shielding foam 40 is leaked through the fastening hole 14 located at the top. The refilling step (S30) of refilling is performed.

The refilling step (S30) is characterized in that a blind spot for filling is not generated by injecting through the fastening hole 14 in which the support 31 is disassembled.

After removing the cap 33 from the sampling hole 32 formed in the center of the support 31, the shielding foam 40 is collected to determine the degree of aging.

In the description of the basement wall maintenance structure and the basement wall construction method and maintenance method of the present invention with reference to the accompanying drawings above, a specific shape and direction have been described, but the present invention can be variously modified and changed by those skilled in the art. , These modifications and changes should be construed as being included in the scope of the present invention.

10: underground facilities 11: basement wall
12: vertical beam 13: floor beam
14: fastening hole 15: coating layer
16: installation end
20: shielding part 21: shielding plate
22: shield cover 30: support
31: support 32: sampling hole
33: cap
40: shielding foam 100: underground structure
200: grinding suction device 300: shielding foam filling device
S1: Basic stage S2: Underground structure construction stage
S3: Shield part construction step S4: Support part installation step
S5: Shielding foam injection step
S10: cover opening step S20: foam removal step
S30: refilling step
S: filling space

Claims (6)

In the structure of an underground wall that is buried in the ground and forms an underground space,
After digging for building construction, a plurality of vertical beams 12 formed vertically along the basement wall 11 are formed, and at the lower end of the basement wall 11, a floor beam integrated with the vertical beams 12 ( Underground facilities (10) forming 13),
The vertical beam 12 and the floor beam 13 of the underground facility 10 are coupled to the upper part of the shielding plate 21 and the basement wall 11 that is installed to be spaced apart from the basement wall 11 Shielding part 20 made of a shielding cover 22,
In the basement wall 11, a plurality of fastening holes 14 are formed at points corresponding to the area of the shielding part 20, and a plurality of fastening holes 14 are fastened to the fastening holes 14 to support the shielding part 20. Support (30) made of earth (31),
An underground wall maintenance structure, characterized in that after removing some of the support holes 31 of the support part 30, a shielding foam 40 filled between the basement wall 11 or the shielding part 20 is formed.
According to claim 1, The shielding foam (40) is a separate crushing and suction device (200) by opening the shielding cover (22) of the shielding part (20) when the endurance and service life is completed. ) To crush and remove the underground wall maintenance structure, characterized in that configured to remove.
In the construction method of an underground wall that is buried in the ground and forms an underground space,
The basic step (S1) of constructing a form for constructing the basement wall (11) after constructing the earth plate at the same time as the excavation of the ground,
After passing through the foundation step (S1), concrete is poured into the formwork to construct vertical beams 12 and floor beams 13 on the outer surface of the basement wall 11 (S2),
After the underground structure construction step (S2), a coating solution is applied to the vertical beams 12 and the floor beams 13 to undergo a curing process. When the coating layer 15 is formed, a shielding plate 21 is constructed, and The shielding part construction step (S3) of combining the shielding cover 22 on the upper part of the vertical beam 12 and the floor beam 13, the shielding plate 21 exposed by the
After going through the shielding part construction step (S3), the support part installation step (S4) of installing to support the shielding plate 21 by fastening the support hole 31 to the basement wall 11,
After passing through the support part installation step (S4), the basement wall construction method comprising a shielding foam injection step (S5) of injecting and filling the shielding foam 40 between the basement wall 11 and the shielding part. The method of claim 3, wherein the support is configured to adjust the support force by adjusting the fastening distance of the support tool 31 according to the load concentration of the shielding plate 21 buried in the ground after passing through the support installation step (S4). Underground wall construction method.
In the maintenance method of an underground wall that is buried in the ground and forms an underground space,
The shielding foam 40 filled in the space formed by the basement wall 11, the vertical beam 12, the floor beam 13, and the shielding plate 21 is opened to open the shielding cover 22 when corrosion progresses. Step (S10),
After passing through the cover opening step (S10), a foam removal step (S20) of crushing and removing the old shielding foam 40 by using a separate grinding suction device 200 and then fastening the shielding cover 22,
After passing through the foam removal step (S20), among the support holes 31 installed in the fastening hole 14 of the basement wall 11 to support the shielding plate 21, the support holes 31 located at the bottom and the top are Disassemble one by one, and refill the shielding foam 40 through the fastening hole 14 located at the top using a separate shielding foam filling device 300 through the fastening hole 14 located at the bottom until the leak is confirmed. Underground wall maintenance method, characterized in that configuring the refilling step (S30).
The basement according to claim 5, wherein the cap (33) is removed from the sampling hole (32) formed in the center of the support (31), and then the shielding foam (40) is collected to determine the degree of deterioration. Wall maintenance method.

Images