KR101025320B1 - Apparatus for forming underground dome concrete structure and constructing method using the same - Google Patents

Abstract

PURPOSE: An apparatus for forming a domed underground concrete structure and a construction method using the same are provided to achieve excellent durability and waterproofing performance of a domed underground concrete structure by preventing discontinuous faces. CONSTITUTION: An apparatus for forming a domed underground concrete structure comprises vertical supports(100) which are installed on the floor of a domed section, pulling members(200) which are installed on the top of the vertical supports, a dome side molding form(300) for molding the lateral side of a dome, a dome top molding form(400) which is raised and lowered by the pulling members, and a jack support(500) which is vertically installed on the floor of the domed section and supports the bottom of the dome top molding form raised by the pulling members up to the forming position.

Description

Apparatus for forming underground dome concrete structure and constructing method using the same}

The present invention relates to a molding apparatus for a basement dome concrete structure and a construction method using the same so that the construction of the underground dome concrete structure quickly and simply.

Generally, transportation facilities, sewage treatment plants, graveyard treatment plants, and radioactive waste treatment facilities in urban or mountain areas are equipped with a dome concrete structure underground.

The underground dome concrete structure is constructed in the order to excavate the dome in the basement, and then install the formwork in the excavated dome portion and cast concrete to complete the dome concrete structure.

The construction of the conventional underground dome concrete structure is known through the "uncured concrete molding frame of the capsule-type or cave-type underground structure" of Korean Patent No. 10-0833527.

As shown in FIG. 1, the construction of a conventional dome concrete structure includes a middle deck 13 and an operation jack 12 driven through a yoke device 11 in an excavated capsule or cave type underground structure. As the hanger deck 14 slides and moves, the vertical wall surface 10a of the dome portion is formed step by step, and the arch deck 15 integrated with the middle deck 13 and the hanger deck 14 is installed to install the dome portion. It is comprised so that a ceiling surface may be shape | molded.

Such a molding mold is expected to be made quickly by eliminating the formwork installation work using the existing copper bar, but there are many problems as follows.

First, there is a problem that the dismantling work is very difficult after the molding is completed.

That is, since the operation jack 12 and the yoke device 11 are located in the unhardened concrete placing space, the uncured concrete is poured into the arch deck 15, the middle deck 13, and the hanger deck 14 once raised. It is impossible to descend in the closed state. Therefore, the operator has to perform the dismantling work of the middle deck 13 and the hanger deck 14 including the arch deck 15 located at the height after completion of the molding of the ceiling surface of the dome part, so that the working environment is very demanding and safety accident The risk is also very high. In addition, large equipment capable of towing the equipment dismantled at the height to the bottom of the dome is essential.

Second, when the unhardened concrete is cast into the arch deck 15, since the operation jack 12 alone cannot support the arch deck 15 with a great load, the additional support 20 is installed on the vertical wall surface 10a. The supports 20 should be fixed to the ends of the middle deck 13 so as to support the hanger deck 14, and the installation of the supports 20 causes many problems as follows.

First of all, in the process of fastening the plurality of supports 20 to the vertical wall surface 10a, a problem of damage to the vertical wall surface 10a and a problem of additional work to be repaired later occurs.

In addition, since a long time should be waited until the uncured concrete poured for the molding of the vertical wall surface 10a is completely cured, there is a problem in that the work is prolonged.

In addition, a problem arises that a pour boundary surface is formed between the uncured concrete that is poured into the arch deck 15 and the top surface of the hardened vertical wall surface 10a to form the dome upper wall surface. Considering that the pour boundary is a representative factor that reduces the durability of the structure by providing a discontinuous surface to the concrete structure and makes the waterproofness weak, the durability and waterproofness of the constructed concrete structure are greatly deteriorated.

In addition, the support 20 has a structural weakness that does not effectively support the vertical load transmitted from the arch deck 15 because it is made of a structure that is fastened to the vertical wall surface (10a). Therefore, the support 20 may be a serious operation accident in which the entire molded structure collapses when the support 20 is broken while failing to bear the enormous load transmitted from the uncured concrete cast into the arch deck 15.

Domestic Patent Publication No. 10-0833527 (published Nov. 1, 2007)

The present invention has been made to solve the above problems, an object of the present invention is to provide a molding apparatus and construction method using the underground dome concrete structure to make the construction of the underground dome concrete structure quickly and continuously.

In addition, the present invention is to provide a molding apparatus and construction method using the underground dome concrete structure that is not only structurally stable, but also a simple structure without damaging the vertical wall surface. have.

In addition, an object of the present invention is to provide an apparatus for forming a underground dome concrete structure easy to dismantle and a construction method using the same.

In order to achieve the above object, the molding apparatus of the underground dome concrete structure of the present invention is a plurality of vertical supports installed on the bottom of the dome portion, the traction member fixed to the upper end of the vertical support, and the dome side forming foam for forming the dome side And a jack support installed vertically on the bottom of the dome portion to support the lower end of the dome forming mold, which is elevated through the towing member, and the lower end of the forming foam raised to the molding position through the towing member. do.

And the method of forming the underground dome concrete structure of the present invention is the step of installing vertical supports on the bottom of the excavated dome portion, the step of installing the towing member through the vertical support, the dome side forming foam is assembled from the bottom of the dome portion A step of preliminarily assembling the dome upper forming foam at the bottom of the dome part, forming a concrete structure on the dome side by uncured concrete poured into the dome side forming foam, and the dome upper forming foam by the towing member. The step of raising to the molding position, the step of assembling the dome upper forming foam is completed, the jack support is installed on the bottom of the dome part to support the lower end of the upper dome forming foam, and the uncured concrete cast into the dome upper forming foam. It is configured to include the step of forming a concrete structure on top of the dome.

According to the molding apparatus of the underground dome concrete structure of the present invention configured as described above and the construction method using the same, since the load applied to the molding foam is distributed through the jack support, a separate support member for supporting the arch deck unlike the conventional It is not necessary to wait for a long time until it is installed on the concrete structure formed on the dome side or curing of the concrete structure formed on the dome side, and it is not necessary to dismantle the jack rod and yoke member in the construction process.

Therefore, the continuous construction is possible, and the construction period can be greatly shortened. As a result, no pour boundary surface is generated, so the durability and waterproofness of the finished concrete structure are very excellent, and in the process of installing the supporting member. Damage to the installation surface and repair work to the damaged site is not followed, the workability is very excellent compared to the conventional can be expected.

In addition, the present invention, since the towing member is still supporting the molding foam even after the molding is completed, it is possible to perform the dismantling work by lowering the molding foam to the floor, unlike conventional, towing the equipment dismantled at the height to the bottom of the dome Not only does not require large equipment, but also the dismantling work is very easy and the work at the height is excluded, thereby minimizing the risk of safety accidents.

1 is a cross-sectional view of the use of the conventional conventional underground dome concrete structure forming apparatus.
Figure 2 is a cross-sectional view of the use state of the underground concrete structure forming apparatus according to the present invention.
Figure 3 is a plan view of the use state of the underground concrete structure forming apparatus according to the present invention.
4 is a cross-sectional view taken along line IV-IV of FIG. 2;
5 is a cross-sectional view showing a state in which the vertical support is positioned inside the forming foam as a state of use of the apparatus for forming an underground concrete structure according to the present invention.
Figure 6 is a view showing an example of the traction member constituting the present invention.
Figure 7 is a sectional view of the main portion of the wall surface of the molded foam and the dome portion constituting the present invention.
8 is a sectional view showing the main portion of another embodiment of the molding foam constituting the present invention.
9 is a cross-sectional view showing the state of use of the apparatus for forming an underground concrete structure according to the present invention.
10 is a cross-sectional view showing a state of use of the apparatus for forming an underground concrete structure according to the present invention, in which the dome upper forming foam is assembled as normal only for a height higher than the upper end of the dome side forming foam.
Figure 11 is a cross-sectional view of the use of the apparatus for forming the underground concrete structure according to another embodiment of the dome upper forming foam constituting the present invention.
12 is a cross-sectional view taken along the line II-XIII of FIG. 11.
Figure 13a to 13h is a view showing in sequence the process of constructing the underground dome concrete structure according to the present invention, respectively.
Figures 14a to 14i are views showing in sequence the process of constructing an underground dome concrete structure according to another embodiment of the present invention, respectively.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

DETAILED DESCRIPTION Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Like reference numerals refer to like elements, and only different parts will be mainly described so as not to overlap for clarity.

As shown in Figures 2 to 4, the molding apparatus of the underground dome concrete structure according to the present invention is a plurality of vertical support 100 is installed on the bottom of the dome portion, the traction member is fixed to the upper end of the vertical support 100 200, the dome side forming foam 300 for forming the dome side, the integrated dome upper forming foam 400 which is elevated through the towing member 200, and to the molding position through the towing member 200 It is composed of a jack support 500 which is installed perpendicular to the bottom of the dome portion to support the lower end of the dome upper forming foam (400).

The vertical support 100 is circularly arranged at regular intervals along the bottom edge of the dome part, and the amount of installation in consideration of the load of the dome upper forming foam 400 is required because the load of the dome upper forming foam 400 must be substantially covered. Make a decision.

The vertical support 100 may be installed outside the dome top forming foam 400 to be assembled later, as shown in Figure 2, the inner side of the dome top forming foam 400 to be assembled as shown in FIG. It can also be installed in. As such, when the vertical support 100 is installed with the inner side of the dome upper forming foam 400 to be assembled, the vertical support 100 is moved out of the uncured concrete placing position, so that the vertical support 100 is completed after the molding operation is completed. There is an advantage that can be reused. In this embodiment, it is shown and described that the vertical support 100 is installed on the outside of the forming foam.

The upper portion of the vertical support 100 is provided with a traction member 200 for elevating the dome upper forming foam 400. The vertical support 100 may be supported more firmly through the auxiliary vertical support 110 installed at the bottom of the dome.

The towing member 200 is installed on the upper end of the vertical support 100 and the jack rod 210 connected to the lower end of the dome upper forming foam 400 through the opening 401 formed in the dome upper forming foam 400 and The hydraulic jack 220 is installed above the vertical support 100 to vertically lift the dome upper forming foam 400 while cooperating with the jack rod 210.

In addition, as shown in Figure 6, the towing member 200 is a towing rope 230 fixed to the lower end of the dome upper forming foam 400, and is installed on the upper portion of the vertical support 100 and the dome upper forming foam The tow rope 230 passing through the opening 401 formed in the 400 may be configured to be a tow pulley 240 wound up, and a drive motor 250 to drive the tow pulley 240.

According to the present invention, vertical hardware 120 is installed at the bottom of the dome to support the dome side forming foam 300 and improve the structural strength of the finished concrete structure. The vertical hardware 120 is preferably installed in the state of being buried in the bottom of the dome, it is assembled to maintain a certain distance with the dome side forming foam 300 through a separate spacing holding 111. And, the vertical hardware 120 is preferably to be interconnected through a separate connecting hardware (112).

On the other hand, the vertical hardware 120 is preferably to have a structure filled with concrete in the hollow frame and the hollow top and bottom open to improve the structural strength.

As shown in FIG. 7, the dome upper forming foam 400 has a dome-shaped steel frame 410 structure. Spacer member 420 is fixed to the outer surface of the steel frame 410, the foam panel 430 is assembled to the outside of the spacer member 420. Thus, the foam panel 430 is assembled while maintaining a predetermined distance from the outside of the steel frame 410 through the spacer 420. The foam panel 430 is composed of a plurality of panels having a shape corresponding to the shape of the dome portion.

In this case, fixing hardware 440 is assembled on the wall surface of the dome part to improve structural strength of the finished concrete structure, and the foam panels 430 are spaced apart from the fixing hardware 440. It is assembled while maintaining a certain distance through. The lower end of the fixed hardware 440 is integrally connected to the upper end of the vertical hardware 120 through butt welding or bolting.

In addition, the fixing hardware 440 may be firmly fixed through the wall surface and the connection member (A) of the dome part.

In addition, the fixed hardware 440 is preferably to be connected to each other as a separate connecting hardware (450). The connecting hardware 450 is preferably a conventional rebar. In this case, the connecting hardware 450 is interconnected with the fixing hardware 440 or the connecting hardware 450 of the adjacent foam panel 430.

In addition, the fixing hardware 440 may be arranged in multiple rows toward the dome wall.

In addition, each of the fixing hardware 440 is preferably interconnected through a separate spacer 445 so as to maintain a constant distance from each other and a constant gap with the foam panel 430.

On the other hand, as shown in Figure 8, as another embodiment of the dome upper forming foam 400, the dome upper forming foam 400 is a dome-shaped steel frame 410, the outer side of the steel frame 410 Spacer member 420 fixed to the form, the fixed hardware 440 on the outer surface in a fixed state at a predetermined distance to the outer space of the steel frame 410 through the spacer member 420 assembled to form a form It may also be composed of panels 430. That is, the fixing hardware 440 is already fixed to the outside of the foam panel 430. In this case, since the fixing work 440 to the foam panel 430 and the fixing hardware 440 to the dome wall do not need to be performed at the work site, the construction period is shortened and the upper molding form of the dome ( Installation of the 400 is also simplified. And the lower end of the fixed hardware 440 located at the lower end is connected integrally with the top of the vertical hardware 120 through butt welding or bolting.

According to the present invention, as shown in Figure 9, the dome upper forming foam 400 is pre-assembled by the steel frame 410 only because the interference occurs with the pre-assembled dome side forming foam 300 in the assembling and lifting process Allow complete assembly while fully elevated to the molding position. That is, only the steel frame 410 is assembled, and assembling the rest of the spaced member and the foam panel, the fixed hardware and the connecting hardware, etc. in a fully raised state.

Alternatively, as shown in FIG. 10, the dome upper forming foam 400 is assembled as normal only for the height of the upper end or higher of the dome side forming foam 300 and the lower dome side forming foam 300 is formed as described above. After the preliminary assembly by excluding the spacer member 420 and the foam panel 430 so as not to cause interference, the assembled parts are normally assembled in a completely raised state to the molding position.

On the other hand, as shown in Figure 11 and 12, as another embodiment of the dome upper forming foam, the dome upper forming foam 400 is a dome-shaped steel frame 410 and the steel frame 410 Spacer member 420 fixed to the outside, the foam panel 430 is assembled at a predetermined distance to the outside of the steel frame 410 through the spacer 420, and the dome upper molding foam to protrude to the dome side wall It may be composed of a temporary work table 470 installed in (400).

The temporary work bench 470 must perform various tasks in a state where the operator is on board, and various materials (B) required for assembling the dome upper forming foam 400, the fixing hardware 440, and the connecting hardware 450 safely. Safety railings are provided for loading.

In this case, the work frame 480 is installed along the wall surface of the dome, and the work frame 480 is provided with traction members 481. The towing members 481 supply materials B necessary for assembling the dome upper forming foam 400, the fixing hardware 440, and the connecting hardware 450.

The work frame 480 may be fixed to the wall surface of the dome part through a separate connecting member (A) to improve structural strength.

Although not shown in the drawing, the work frame 480 may be concrete poured therein to improve structural strength. In this case, it is possible to further enhance the structural strength by laying steel or mesh in the concrete over several layers.

And the foam panel 430 is not installed in the site where the temporary work bench 470 is installed. Therefore, the site where the temporary work bench 470 is installed is a passage through which an operator can enter and exit. The site where the temporary work bench 470 is installed is then finished through a separate finishing foam panel (not shown) when the temporary work bench 470 is removed, and uncured concrete is poured in this state.

On the other hand, the work frame 480 is connected to the dome upper forming form 400 while maintaining a certain distance through the gap retaining hole 460 in the state where the dome upper forming form is fully raised (see Fig. 14f).

In addition, an internal steel 490 may be further installed between the work frame 480 and the dome upper forming foam 400. In this case, the inner steel 490 is composed of a vertical connecting hardware 491 and the horizontal connecting hardware 492 is connected to the vertical connecting hardware 491 is installed on the bottom of the dome, the vertical connecting hardware (491) And the connection of the horizontal connection hardware 492 is to be performed through the temporary work platform 470 installed on the dome upper forming foam (400).

That is, when the towing member 481 installed on the work frame 480 loads the materials B including the internal steels 490 on the temporary working table 470, the operator boards the temporary working table 470. As the dome upper forming foam 400 is elevated using the internal steels 490 preloaded in a state, the internal steels 490 are extended from the bottom of the dome to the upper part.

The temporary working table 470 is firmly fixed to the steel frame 410 of the dome upper forming foam 400 so that an operator can easily perform the connection of the vertical connecting hardware 491 and the horizontal connecting hardware 492. It is installed so that it may protrude toward the wall surface of a dome part in a state.

Accordingly, a vertical support bar (not shown) may be coupled to the work frame 480 so that an end portion of the temporary work bench 470 protruding toward the wall surface of the dome portion may maintain a horizontal state. In this case, the lower end of the vertical support bar is fastened to the end of the temporary working table 470 when the dome upper forming foam 400 is fully raised to the molding position. In addition, the vertical support bar may be installed vertically to the steel frame 410 of the dome forming foam 400 to support the lower portion of the temporary working table 470.

When the dome upper forming foam 400 is installed as described above, the assembly of the dome upper forming foam 400 is made quickly and easily due to the work frame 480 and the towing member 481, and the work frame 480 is reinforced. It does not require the installation of a separate reinforcing member, such as a fixed hardware. In addition, since the installation work of the internal steel 490 is made in the process of raising the dome upper forming foam 400, the construction period can be greatly shortened.

According to the present invention, as shown in Figures 2 to 4, an opening portion 402 is formed on one side of the dome upper forming foam 400 so that uncured concrete can be poured. The opening part 402 is formed so as not to assemble the foam panel 430 on the corresponding part. The opening part 402 is finished through a separate finishing foam panel after pouring of uncured concrete.

Horizontal supports 411 are installed at the lower end of the dome upper forming foam 400 to improve the structural strength of the dome upper forming foam 400. In addition, an auxiliary support 412 for supporting the steel frame 410 inside the dome upper forming form 400 is installed on the upper side of the horizontal support 411. In addition, the auxiliary support 412 is installed to enable the lifting, it is preferable to allow the uncured concrete supply device 413 to be smoothly supplied to the dome upper forming foam 400 through the auxiliary support (412).

Meanwhile, jack supports 500 supporting the lower portion of the dome upper forming foam 400 are installed at the bottom of the dome portion. The jack support 500 is installed so as to support the lower end of the steel frame 410 of the dome upper forming foam 400 as far as possible to form the high load uncured to the upper portion of the dome upper forming foam 400 It also serves to stably support the dome upper forming foam 400 from concrete.

Meanwhile, an injection hole 431 for injecting uncured concrete and grouting mortar is formed at the center of the foam panel 430 forming the uppermost part of the dome portion among the foam panels 430 constituting the upper dome forming foam 400. It is.

In addition, the bottom of the dome portion is preferably fixed to the guide panel 600 for specifying the installation position of the vertical hardware (120). The guide panel 600 is formed with a through hole 610 for guiding the position of the vertical support 100, including the vertical hardware 120 and the connecting hardware 112 to be installed on the bottom of the dome. Therefore, the operator installs the guide panel 600 at a predetermined position to fix the floor so as not to move, and then install the vertical hardware 120, the connecting hardware 112 and the vertical support 100 at the position of the through hole 610. You can do it. The vertical hardware 120 is a member connected to the lower end of the fixed hardware 440, considering that the fixed hardware 440 is the main member that determines the molding position of the dome upper forming foam 400, the guide panel ( It is very important to precisely manage the installation position of the vertical hardware 120 using 600, which can be performed very quickly and simply through the guide panel 600.

In addition, the bottom of the guide panel 600 may be provided with a leg 620 to maintain a predetermined distance from the bottom of the dome. In this case, the guide panel 600 is firmly fixed to the bottom of the dome while the bridge 620 is embedded in the uncured concrete to be poured into the bottom of the dome for the base of the dome.

In addition, the guide panel 600 is preferably installed horizontally in the middle of the fixed hardware 440 instead of being installed only on the bottom of the dome, it is preferable to maintain a constant interval between the fixed hardware 440 and to use as a work platform. .

On the other hand, as another embodiment of the guide panel, 11 and 12, the guide panel 500a is provided with a through hole for specifying the position of the work frame 480 or the installation position of the vertical connecting hardware 491 of the inner steel 490. You may.

The molding method using the molding apparatus of the underground dome concrete structure of the present invention configured as described above is as follows.

First, as shown in FIG. 13A, the guide panel 600 is laid at a predetermined position on the bottom of the excavated dome part, and the bottom of the dome part is constructed with concrete. In this case, the vertical hardware 120 and the vertical supporters 100 are installed in the through holes 610 of the predetermined guide panels 600 to be firmly fixed in the state of being buried in the bottom of the dome part during the foundation construction.

As shown in FIG. 13B, when the vertical support 100 is installed, the traction member 200 is installed on the upper portion of the vertical support 100. In the present embodiment, the towing member 200 provided with the jack rod 210 is illustrated and described as an example.

When the towing member 200 is installed, the dome side forming foam 300 starts to be assembled, and the vertical hardware 120 and the dome side forming foam 300 are connected to each other to maintain a predetermined interval through the gap retaining hole 111. .

At the same time, the dome upper forming foam 400 is temporarily assembled at the bottom of the dome. The dome upper forming foam 400 is prefabricated in a form in which only the steel frame 410 is assembled to prevent interference with the dome side forming foam 300, or as shown, lower than the top of the dome side forming foam 300. Only the portion of the spacer member 420 is assembled in an unassembled form.

In addition, horizontal supports 411 are installed at a lower end of the dome upper forming foam 400, and auxiliary supports 412 are installed on the upper portion of the horizontal support 411 to support the steel frame 410. As such, when the installation of the horizontal support 411 and the auxiliary support 412 is completed, the uncured concrete supply device 413 is installed through the horizontal support 411 and the auxiliary support 412.

As shown in FIG. 13C, the vertical hardware 120 and the connecting hardware 112 installed on the bottom of the dome portion are extended to the upper part of the dome while the dome upper forming foam 400 is temporarily assembled. That is, the fixed hardware 440 and the connecting hardware 450 are extended to the upper part of the dome, respectively, on the upper part of the vertical hardware 120 and the connecting hardware 112. In this case, the fixing hardware 440 is firmly fixed to the wall of the dome part through the connection member (A) pre-installed on the wall surface of the dome part, while the fixing hardware 440 of both sides through the connection hardware 450 is firmly mutually. Is connected. And up and down fixing irons 440 are connected integrally by welding or bolting.

According to the present invention, the fixed hardware 440 and the connecting hardware 450 may be assembled to the foam panel 430 in advance. That is, as shown in Figure 8, the gap retaining hole 460 is installed on the outside of the foam panel 430, through the gap retaining hole 460 to a predetermined distance to the outer surface of the foam panels 430. Leave the fixed hardware 440 is to be installed. In addition, the fixing hardware 440 in both directions is connected to each other through the connecting hardware 450, and the fixing hardware 440 in the vertical direction is integrally connected by welding or bolting. Therefore, in such a case, it is not required to extend the fixing hardware 440 and the connecting hardware 450 to the upper part of the dome along the dome shape, respectively, on the upper part of the vertical hardware 120 and the connecting hardware 112.

Meanwhile, when the temporary assembly of the dome upper forming foam 400 is completed or in progress, the assembling of the dome side forming foam 300 is completed, the concrete structure is formed on the sidewall of the dome while uncured concrete is poured onto the dome side forming foam 300. It begins to be. When the temporary assembly of the dome upper forming foam 400 is completed, the traction member 200 is connected to the dome upper forming foam 400 and the traction member 200 is driven while the dome upper forming foam 400 is raised.

As shown in FIG. 13D, when the dome top forming foam 400 is fully raised to reach the molding position, the lifting operation of the dome top forming foam 400 is also stopped. In this state, the dome top forming foam 400 in the assembled state is completely assembled. In addition, the foam panel 430 is bound at a predetermined distance to the outside of the fixing hardware 440 pre-installed on the wall of the dome part by using the spacing holder 460.

Meanwhile, as shown in FIG. 8, in the case of the dome upper forming foam 400 in which the fixed hardware 440 and the connecting hardware 450 are assembled in the foam panel 430, the dome upper forming foam 400 in the temporarily assembled state is shown. ) Is completely assembled, the bottom of the fixed hardware 440 assembled to the bottom of the dome upper forming foam 400 is firmly welded or bolted to the top of the vertical hardware 120 installed on the dome wall The fixed hardware 440 of the dome upper forming foam 400 and the vertical hardware 120 of the dome wall form a single structure.

And the fixing hardware 440 is fixed to the wall surface of the dome portion through a separate connection member (A) to ensure the dome upper forming foam 400 structurally secure.

The fixing of the dome upper forming foam 400 and the wall surface of the dome proceeds simultaneously with the molding work of the concrete structure on the dome side, and ends before the molding work of the concrete structure is completed on the dome side.

In addition, the jack support 500 is installed at the lower end of the dome upper forming form 400 before the uncured concrete is poured into the dome upper forming form 400 so that the load of the dome upper forming form 400 is distributed. do.

According to the invention, the dome side molding form 300, uncured concrete assembly and jack support 500, the installation is complete all of the dome top molding form 400, while the placement because of the shaping operation of the dome side and a dome top Since the molding operation can be carried out continuously, no pour boundary is formed. Therefore, it is preferable to adjust the timing at which the uncured concrete is poured into the dome side forming foam 300 in consideration of the timing at which both the assembly of the dome upper forming foam 400 and the installation of the jack support 500 are completed.

As shown in FIG. 13E, when the installation of the jack support 500 is completed, the uncured concrete supply device is removed, and the opening 401 and the opening 402 are finished with a finishing foam panel, so that the uncured concrete is leaked. They are all closed.

When the opening 401 and the opening 402 are closed, the uncured concrete is slowly injected into the injection hole 431 formed at the center of the foam panel 430 forming the uppermost part of the dome upper forming foam 400. At this time, since the load is distributed through the jack support 500 and the wall of the dome portion, the dome upper forming foam 400 can maintain a very stable installation state despite the enormous load of the uncured concrete that is poured.

As shown in FIG. 13F, when the uncured concrete is hardened after a certain time has elapsed, a grouting mortar supply pipe 414 is inserted into the injection hole 431 instead of the uncured concrete supply pipe and grout mortar (F). ) Is injected at high pressure. The grouting mortar (F) fills the empty space formed at the top of the dome portion in which uncured concrete is not poured.

When the concrete structure is formed on the dome, the dome side forming foam 300 is dismantled.

And while the dome side forming foam 300 is dismantled, all the connections between the foam panel 430 and the gap retention zone 460 of the dome upper forming foam 400 are released, and the jack support 500 is removed and then towed. As the member 200 is operated, the dome upper forming foam 400 is gradually lowered. At this time, since the vertical support 100 or the towing member 200 and the dome upper forming foam 400 interfere with the upper dome forming foam 400, the finishing foam panel is removed, and the opening 401 is opened again. . In addition, the dome upper forming foam 400 is preferably dismantled in advance so as to be in a prefabricated state as shown in FIG.

As shown in FIG. 13G, when the dome top forming foam 400 descends to the bottom, a part of the vertical support 100, the towing member 200, and the dome top forming foam 400 are dismantled. Therefore, since the operator performs the dismantling of the dome upper forming foam 400 after the molding is completed, it can be performed very easily.

When all of these series of operations are performed, the underground dome concrete structure as shown in FIG. 13H is completed.

On the other hand, the dome upper forming foam 400 may be temporarily assembled after the molding of the dome side is completed and all the dome side forming foam 300 is dismantled. In this case, since the assembly of the dome side forming foam 300 and the dome upper forming foam 400 is not made together, it is advantageous in terms of securing a working space when assembling the dome side forming foam 300.

On the other hand, as another embodiment of the present invention, the molding method using the molding apparatus of the underground dome concrete structure to which the dome upper forming foam shown in Figure 11 and 12 is applied as follows.

First, as shown in FIG. 14A, the guide panel 500a is laid at a predetermined position on the bottom of the excavated dome portion, and the bottom of the dome portion is constructed with concrete. In this case, the vertical support 100 is installed in the through holes of the predetermined guide panels 500a, and the vertical connection hardware 491 of the towing member 200, the working frame 480, and the internal steel are installed at the bottom of the dome part during the basic construction. To be firmly fixed.

As shown in FIG. 14B, when the base of the bottom of the dome is completed, the work frame 480 embedded in the bottom of the dome is extended upward and completely assembled. The work frame 480 is welded or bolted. It is connected in one piece. And the towing member 481 is installed in the working frame 480. In this embodiment, the electric pulley type traction member 481 is shown as an example. In addition, the work frame 480 is fixed to the sidewall of the dome through a separate connecting member (A) so that the structural strength of the work frame 480 is improved.

As shown in FIG. 14C, when the installation of the towing member 481 is completed, the dome side forming foam 300 is assembled. The dome side forming foam 300 is assembled to maintain a constant distance with the vertical connection hardware 491 through the gap retaining hole (111).

As shown in FIG. 14D, when the installation of the dome side forming foam 300 is completed, the dome upper forming foam 400 is temporarily assembled at the bottom of the dome portion. The dome upper forming foam 400 may be pre-assembled in a form in which only the steel frame 410 is assembled to prevent interference with the dome side forming foam 300, as shown in the upper end of the dome side forming foam 300 Only the lower portion of the spacer 420 may be preassembled in an unassembled form. In this case, the dome upper forming foam 400 is a steel frame 410 is assembled in a dome shape, then the spacer member 420 is installed to the outside of the steel frame 410, the temporary work table to protrude toward the side wall of the dome ( 470 is firmly installed through the steel frame 410 or the spacer 420, the foam panel 430 is fixed to the outside of the spacer 420 except for the portion where the temporary working table 470 is installed Are assembled in the order that they become.

In addition, the horizontal support 411 is installed at the lower end of the dome upper forming foam 400, and the auxiliary support 412 is installed on the upper portion of the horizontal support 411 to support the steel frame 410. As such, when the installation of the horizontal support 411 and the auxiliary support 412 is completed, the uncured concrete supply device 413 is installed through the horizontal support 411 and the auxiliary support 412.

On the other hand, the assembly of the dome upper forming foam 400 is made easily and simply by receiving the material through the towing member 481 installed in the work frame 480, the installation of the temporary work bench 470, the towing member Materials 4 for installing the internal steel are loaded on the temporary working table 470 through the 481.

Then, when the assembly of the dome side forming foam 300 is completed, the concrete structure is formed on the dome side wall while the uncured concrete is poured onto the dome side forming foam 300. In this case, when the height of the dome side molding foam 300 is low, the pouring of the uncured concrete may be performed using the uncured concrete supply device 413 installed in the upper molding foam 400, and the dome side molding foam 300 If the height is higher than the installation position of the uncured concrete supply device 413, the casting position may be made through a separate uncured concrete supply device.

While the manufacturing of the dome upper forming foam 400 is completed while the concrete structure is formed on the sidewall of the dome, when the manufacturing of the dome upper forming foam 400 is completed, the traction member 200 is connected to the dome upper forming foam 400. do.

As shown in FIG. 14E, when the towing member 200 is connected to the dome upper forming form 400, the dome upper forming form 400 is raised in stages while the towing member 200 is driven. The assembly of the inner steel 490 is made continuously using the material B loaded on the temporary working table 470 of the upper forming foam 40.

The inner steel 490 is assembled by extending the vertical connecting hardware 491 embedded in the bottom of the dome to the upper part of the dome and interconnecting the vertical connecting hardwares 491 to the horizontal connecting hardwares 492. In addition, the vertical connection hardware 491 is connected to maintain a constant width through a separate band reinforcement (493).

As shown in FIG. 14F, when the dome upper forming foam 400 is fully raised to reach the molding position, the molding of the concrete structure of the dome sidewall is completed, and the lifting operation of the dome upper forming foam 400 is also stopped. do. When the upward movement of the dome upper forming foam 400 is stopped, the jack support 500 is installed at the lower end of the dome upper forming foam 400 to distribute the load of the dome upper forming foam 400.

In addition, the dome upper forming foam 400 is bound with a predetermined distance from the internal steel 490 through a gap retaining hole 460 pre-installed in the work frame 480. In addition, a vertical support bar (not shown) may be installed on the work frame 480, and the end portions of the vertical support bar and the temporary work bench 470 may be coupled to keep the temporary work bench 470 horizontal.

On the other hand, the temporary work bench 470 installed on the lower side is removed because it interferes with the dome, and the last assembly of the internal steel 490 through the temporary work bench 470 installed on the upper part of the dome upper forming form 400.

As such, while the dome upper forming foam 400 is fully raised to reach the molding position, the assembly of the internal steel 490 is performed, and the uncured concrete is poured through the opening 402 of the dome upper forming foam. . As a result, the molding work on the dome sidewall and the upper part of the dome is continuously performed, and no pour boundary surface is formed.

As shown in FIG. 14G, when the assembly of the internal steel 490 is completed, the opening 401 and the opening 402 provided in the dome upper forming form 400, including the site where the temporary working table 470 is removed. The finishing foam panels are coupled to each other so that uncured concrete is not leaked.

Then, the uncured concrete is slowly injected into the injection hole 431 formed in the center of the foam panel forming the uppermost part of the dome upper forming foam 400. In this case, since the load is distributed through the jack support 500 and the wall surface of the dome portion, the dome upper forming foam 400 can maintain a very stable installation state despite the enormous load of the uncured concrete.

When the uncured concrete is hardened after a certain time has elapsed, the grouting mortar supply pipe 414 is inserted into the injection hole 431 instead of the uncured concrete supply pipe, and the grouting mortar is injected at a high pressure. The grouting mortar fills the empty space formed at the top of the dome where uncured concrete is not poured.

As such, the dome side forming foam is dismantled while the concrete structure is formed on the dome. When the molding of the concrete structure is completed on the upper part of the dome, all of the connection between the upper dome forming foam 400 and the space maintaining hole 460 is released, and the jack support 500 is removed and then the towing member 200 is operated. The dome upper forming foam 400 is gradually lowered. At this time, since the vertical support 100 or the towing member 200 and the dome upper forming foam 400 interfere with the upper dome forming foam 400, the finishing foam panel is removed in advance, and the opening 401 is opened again. Be sure to In addition, the dome upper forming foam 400 may be dismantled in advance so as to be in a prefabricated state as shown in FIG.

As shown in FIG. 14H, when the dome top forming foam 400 descends to the bottom, a part of the upper end of the vertical support 100 protruding into the dome, and the towing member 200 and the dome top forming foam 400 are both As it is dismantled, the underground dome concrete structure as shown in FIG. 14i is completed. Therefore, since the operator performs the dismantling of the dome upper forming foam after the molding is completed, it can be performed very easily.

On the other hand, the dome upper forming foam 400 may be temporarily assembled after the molding of the dome side is completed and all the dome side forming foam 300 is dismantled. In this case, since the assembly of the dome side forming foam 300 and the dome upper forming foam 400 is not made together, it is advantageous in terms of securing a working space when assembling the dome side forming foam 300.

As described above, preferred embodiments of the present invention are described above with reference to the drawings, but the present invention is not limited to the above-described embodiments, and those skilled in the art may modify the present invention without departing from the spirit of the present invention. Possible, such modifications will fall within the scope of the invention.

100 ... vertical support 111,460 ... spacing zone
112,450 Connecting hardware 120 Vertical hardware
200,481 ... Traction member 210 ... Jack Rod
220.Hydraulic jack 230 ... towing rope
240 towing pulley 250 driving motor
300 ... Dome Side Forming Foam 400 ... Dome Top Forming Foam
401 ... opening 402 ... opening
410 steel frame 420 spacer
430 foam panel
440 ... fixed hardware 460 ... spacing zone
470 Temporary Workbench 480 Working Frame
490 Internal steel 491 Vertical reinforcing bars
492 ... Horizontal connecting bar 500 ... Jack support
600 ... Information panel A ... connection member
B ... Material

Claims (34)

A plurality of vertical supports installed on the bottom of the dome portion;
A towing member fixed to an upper end of the vertical support;
A dome side forming foam for forming the dome side;
A dome upper forming foam for elevating through the towing member; And
And a jack support vertically installed on the bottom of the dome portion to support a lower end of the dome upper forming foam which rises to the molding position through the towing member. The method of claim 1,
An opening is formed at an upper portion of the dome upper forming foam to allow the vertical support or the pulling member to pass therethrough,
The gap between the opening and the vertical support or the traction member is to prevent the uncured concrete to be poured in the molding process by using a finishing foam panel, characterized in that for molding the underground dome concrete structure. The method of claim 1,
Molding apparatus for underground dome concrete structure, characterized in that the vertical hardware is installed on the bottom of the dome side supporting the dome side forming foam. The method of claim 3, wherein
The vertical hardware is assembled to maintain a certain distance with the dome side forming foam through a separate spacer member, the molding apparatus of the underground dome concrete structure, characterized in that it is firmly fixed through the wall and the connection member of the dome. The method of claim 1,
The dome upper molding foam
Domed steel frame;
Spacer member fixed to the outside of the steel frame; And
Molding apparatus for the underground dome concrete structure, characterized in that consisting of foam panels are assembled at a certain distance on the outside of the steel frame through the spacer member. 6. The method of claim 5,
Forming apparatus of the underground dome concrete structure, characterized in that the fixed steel is installed on the outer surface of the foam panel on the wall surface of the dome part at a certain distance. The method of claim 1,
The dome upper molding foam
Domed steel frame;
Spacer member fixed to the outside of the steel frame; And
Forming apparatus of the underground dome concrete structure, characterized in that consisting of foam panels are assembled at a certain distance on the outside of the steel frame through the spacer member in a fixed state fixed to the outer surface at a certain distance. The method according to claim 6 or 7,
Forming apparatus of the underground dome concrete structure, characterized in that the fixed hardware are interconnected through a separate connecting hardware. The method according to claim 6 or 7,
Forming apparatus of the underground dome concrete structure, characterized in that the fixing hardware is fixed to the wall surface of the dome portion through a separate connecting member. 6. The method of claim 5,
The dome upper forming foam is a molding apparatus for the underground dome concrete structure, characterized in that the material supplied through the work frame is installed along the wall surface of the dome and the towing members installed on the work frame. The method of claim 10,
The work frame is a molding apparatus of an underground dome concrete structure, characterized in that fixed to the wall surface of the dome portion through a separate connecting member. The method according to claim 10 or 11,
The work frame is a molding apparatus of an underground dome concrete structure, characterized in that connected to the state maintaining a constant distance from the molding foam through the gap retaining zone. The method of claim 10,
Molding apparatus for the underground dome concrete structure, characterized in that the inner steel is further installed between the work frame and the dome upper forming foam. The method of claim 13,
The inner steel is a vertical connecting hardware installed on the bottom of the dome portion, the forming apparatus of the underground dome concrete structure, characterized in that the horizontal connecting hardware connected to the vertical connecting hardware. The method of claim 14,
The connecting device of the vertical connecting hardware and the horizontal connecting hardware is a molding apparatus of the underground dome concrete structure, characterized in that it is carried out through a temporary work table installed in the forming foam to protrude toward the wall surface of the dome. The method of claim 1,
One side of the dome upper forming foam has an opening to be cast uncured concrete, the opening is to be finished through a separate finishing foam panel after the casting of the uncured concrete of the underground dome concrete structure Molding apparatus. The method of claim 1,
The towing member is
Jack rod is installed on the top of the vertical support and the bottom is connected to the dome upper forming foam; And
It is installed on top of the vertical support forming apparatus of the underground dome concrete structure, characterized in that composed of a hydraulic jack for vertically raising the dome upper forming foam while cooperating with the jack rod. The method of claim 1,
The towing member is
A towing rope fixed to the upper portion of the dome upper forming foam;
A towing pulley installed at an upper portion of the vertical support and tow up the towing rope; And
Molding apparatus for the underground dome concrete structure, characterized in that consisting of a drive motor for driving the towing pulley. The method of claim 1,
Forming apparatus of the underground dome concrete structure, characterized in that the injection hole for injecting uncured concrete and grouting mortar is formed in the center of the foam panel forming the top of the dome of the foam panels forming the upper dome forming foam. The method according to claim 6 or 7,
Forming apparatus of the underground dome concrete structure, characterized in that the guide panel for designating the installation position of the fixed hardware is further fixed to the bottom of the dome. The method according to claim 6 or 7,
Forming apparatus of the underground dome concrete structure, characterized in that the guide panel is horizontally installed to be used as a working scaffold while maintaining the fixed interval in the middle of the fixed hardware. The method of claim 10,
Forming apparatus of the underground dome concrete structure, characterized in that the guide panel for designating the installation position of the work frame is further fixed to the bottom of the dome. The method of claim 14,
Forming apparatus of the underground dome concrete structure, characterized in that the guide panel for specifying the installation position of the vertical connecting hardware of the inner steel is further fixed to the bottom of the dome. Installing vertical supports on the bottom of the excavated dome;
Installing a traction member on an upper end of the vertical support;
Assembling the dome side forming foam at the bottom of the dome portion;
Pre-assembling the dome upper forming foam at the bottom of the dome;
Forming a concrete structure on the dome side by uncured concrete poured into the dome side forming foam;
Raising a dome upper forming foam to a molding position by the traction member;
Completing the assembly of the dome upper forming foam;
A jack support is installed at the bottom of the dome to support the bottom of the dome upper forming foam; And
The method of forming an underground concrete structure, comprising the step of forming a concrete structure on the upper part of the dome by the uncured concrete poured into the dome upper forming foam. Installing vertical supports on the bottom of the excavated dome;
Installing a traction member on an upper end of the vertical support;
Assembling the dome side forming foam at the bottom of the dome portion;
Forming a concrete structure on the dome side by uncured concrete poured into the dome side forming foam;
Pre-assembling the dome upper forming foam at the bottom of the dome;
Raising a dome upper forming foam to a molding position by the traction member;
Completing the assembly of the dome upper forming foam;
A jack support is installed at the bottom of the dome to support the bottom of the dome upper forming foam; And
The method of forming an underground concrete structure, comprising the step of forming a concrete structure on the upper part of the dome by the uncured concrete poured into the dome upper forming foam. The method of claim 24 or 25,
And forming a vertical hardware on the bottom of the excavated dome portion before the assembling of the dome side forming foam from the bottom of the dome portion. The method of claim 24 or 25,
After the step of installing the traction member through the vertical support to go through the step of installing the connection member on the wall surface of the dome,
Forming method of the underground concrete structure, characterized in that the step of connecting the dome upper forming foam and the connecting member before the step of forming the concrete structure on the dome. The method of claim 24 or 25,
After the step of installing the traction member through the vertical support to go through the step of installing the fixing hardware on the wall surface of the dome;
Before the concrete structure is formed on the upper part of the dome, the method of forming an underground concrete structure, characterized in that the step of passing through the step of connecting the dome upper forming foam and the fixed hardware. The method of claim 28,
After the fixed steel is installed on the wall surface of the dome portion, the method of forming an underground concrete structure, characterized in that further through the step of connecting the fixed hardware through a connecting hardware. The method of claim 24 or 25,
After the concrete structure is formed on the upper part of the dome, the jack support is removed, the dome upper forming form descends to the floor through the towing member, and the vertical support, the towing member, and the dome upper forming form are dismantled. The method of forming an underground dome concrete structure, characterized in that the step further through. The method of claim 24 or 25,
Before the step of assembling the dome upper forming foam at the bottom of the dome, the step of installing the work frame along the dome and the step of installing the towing member on the work frame further characterized in that Molding method. 32. The method of claim 31,
The step of pre-assembling the dome upper forming foam at the bottom of the dome portion
Dome-shaped steel frame is assembled,
Spaced member is installed on the outside of the steel frame;
Installing a temporary workbench on the steel frame to protrude toward the side wall of the dome;
Forming method of the underground dome concrete structure, characterized in that the foam panel is assembled with a predetermined distance to the outside of the steel frame frame through the spacer except for the installation site of the temporary work platform. 32. The method of claim 31,
After the dome top forming foam is temporarily assembled at the bottom of the dome, the internal steel is installed between the work frame and the dome top forming foam,
After the step of installing the internal steel, the method of forming an underground dome concrete structure, characterized in that to go through the step of removing the temporary work platform and finishing the site where the temporary work platform is installed through the finishing foam panel. The method of claim 32,
Before the internal steel is installed, the method of forming the underground dome concrete structure, characterized in that further through the step of supplying the internal steel to the temporary work platform through the traction members installed in the work frame.

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