KR102339591B1 - The mold of a corporate body assembling PE unwoven waterproof sheet and temporary supporter and method installing it thereof - Google Patents

Abstract

The present invention installs a formwork assembly for pouring ready-mixed concrete in the vertical openings on both sides of the bottom space (G) (space I) of a rectangular cross-section in which the vertical and horizontal reinforcing bars are reinforced and the installation of the PE nonwoven fabric waterproofing sheet is installed, but the formwork assembly is It consists of a PE nonwoven waterproof sheet, a temporary support wire mesh, and a temporary self-supporting steel material. The supporting steel is the vertical support material of the formwork assembly, and is a horizontal resistance tension member of the formwork assembly against the horizontal action pressure of the ready-mixed concrete being poured. This is an invention in which the horizontal work space outside the bottom space (G) is omitted, unlike the prior art, so that the work can be done simply and efficiently.

Description

The mold of a corporate body assembling PE unwoven waterproof sheet and temporary supporter and method installing it thereof }

The present invention relates to a waterproof and formwork assembly in which a PE nonwoven waterproof sheet and a temporary support material are integrally assembled, and a method for installing a lower underground structure of a rectangular cross section using the same. A formwork assembly for pouring ready-mixed concrete is installed in the vertical openings on both sides of the bottom space (G) (space I) of a rectangular cross-section in which vertical and horizontal reinforcing bars are reinforced. , is made of temporary self-supporting steel, and in this case, the PE non-woven waterproof sheet is a composite member with a waterproof function, a form function, and a protective material function during backfilling, and the temporary support wire mesh and temporary self-supporting steel material are vertical support materials of the formwork assembly. In addition, unlike the prior art, the bottom space (G) (space I) is responsible for “transverse reinforcing bar + tension connecting line” as the horizontal resistance tension member of the formwork assembly against the horizontal action pressure of the ready-mixed concrete being poured. (Bottom) Space (G) It relates to an invention in which the horizontal work space to the outer boundary side is omitted so that the work can be done simply and efficiently.

The structure of the formwork assembly has a very thin structure, unlike the prior art in which the receiving interval between the forms for pouring the supporting wall is wide, and the structure is independent of curing and curing. It is easy and efficient, and the follow-up work is also made quickly.

In addition, the formwork assembly is a material irrelevant to curing and hardening, and both ends of the transverse reinforcing bar, which is a horizontal resistance tension member, are horizontally connected and bound to the symmetrical formwork assembly on both sides. (G) (Space I) Since the horizontal reinforcing bars placed inside are directly resisted and supported by the horizontal tensile force (T), the horizontal support of the formwork assembly is simple, making the installation work easy and efficient.

In addition, the PE nonwoven waterproof sheet of the formwork assembly remains as it is in the lower and both sides of the bottom space (G) together with the poured ready-mixed concrete, and after the ready-mixed concrete is hardened, the temporary self-supporting steel and temporary support wire are removed, After demolition, only PE non-woven waterproof sheet is attached to the outer wall of the structure in the bottom space (G), so there are no temporary self-supporting steel and temporary support wire remaining on the outer wall of the structure. When filling, PE long fiber compressed nonwoven fabric with high tensile and tear strength and cushioning asphalt bound to and anchored thereto serve as a sufficient protective material.

Underground structures such as subways, underpasses, apartment underground parking lots, and common areas are generally the same as in FIG. 1 . The shape of the underground structure in FIG. 1 is a box shape with a rectangular cross section.

Below the line A-A in Fig. 1 is a horizontal rectangular cross section, and above it is a vertical rectangular cross section. In general, the bottom structure is designed as a structure with a height of 1.0M or higher because it receives the upper load intensively.

If the bottom of the A-A line is I and the top is II, then I is a horizontal quadrilateral cross section, and II is a vertical quadrilateral cross section.

Although Fig. 1 shows the completed underground structure, I and II refer to the state before the completed underground structure, that is, before the reinforcement and formwork are installed (see G in Fig. 2b). In this case, I is a space for the conventional improved asphalt sheet installation and reinforcing reinforcement corresponding to the lower underground structure of a quadrangular section.

However, for convenience of explanation, the positions of I and II indicate the corresponding positions of the rectangular section of the completed underground structure.

In particular, the quadrangular section of Ⅰ, which consists of upper, lower and both vertical sides, consists of one closed surface and three open surfaces.

The quadrangular cross-sectional space of I is a bottom space corresponding to the bottom structure of the underground structure. At this time, the height of the bottom structure is 1.2 to 1.5 m.

One closed surface is the lower surface of the foundation concrete horizontal plane (C), and three open surfaces are the upper surface and both vertical sides.

There is no need to install formwork on the horizontal surface (C) of the foundation concrete, which is the sealing surface. This is because the sealing surface itself functions as a formwork. The sealing surface is poured with a 10cm-thick surface leveling mortar.

However, only two out of three open surfaces, that is, on both vertical sides, require formwork installation. At this time, the formwork installed on both vertical sides is a structural material that resists horizontal pressure of ready-mixed concrete with a height of 1.2~1.5m poured.

There is no need to install formwork on one open surface, that is, the upper surface. This is because, when ready-mixed concrete is poured between the horizontal surface of the foundation concrete (C) and the formwork (B) on both vertical sides, the horizontal open surface of the upper surface is naturally horizontal even without a formwork.

In this respect, the rectangular section of Ⅰ is the most efficient section of formwork for pouring ready-mixed concrete.

According to the prior art Figures 2b and 2c, the formwork, which is a resistance structural material for the horizontal pressure of the placed ready-mixed concrete of the rectangular section of I, is a concrete wall (10).

Both formwork (1) (1) of FIG. 2a is only a form for forming the concrete wall 10 of FIG. 2b, not the concrete wall 10. As shown in FIG.

Looking at the pre-measurements for pouring ready-mixed concrete of the rectangular section of I by Fig. 2a, Fig. 2b and Fig. 2c.

The first precautions are the installation of the formwork (1)(1) for the concrete wall 10 of FIG. 2a and the concrete pouring between the formwork(1)(1) (D). At this time, a separate additional horizontal support structure for the formwork (1) (1) is required. This is because it is impossible to support the horizontal pressure of ready-mixed concrete with the formwork (1) itself, which is a vertical member. As shown in Fig. 2a, the vertical support post 4 and the run-up bar 2 and the brace 3 are separate additional horizontal support structures.

The second precaution is, according to FIG. 2b, only the cured and hardened concrete wall 10a remains, and the additional horizontal support structure (ie, formwork) is removed. After that, in the state where only the concrete wall 10 remains, the conventional improved asphalt sheet 20 is installed to be in contact with the basic concrete horizontal surface C and the concrete wall 10 in the G space of I.

The third precaution is that, according to FIG. 2c , the longitudinal and transverse reinforcing bars 40 together with the spacer 30 are reinforced in the G space of I in the state in which the conventional improved asphalt sheet 20 is installed.

The fourth precautionary measure is that the ready-mixed concrete 50 is poured in the G space of I. At this time, resistance and support for the horizontal pressure of the ready-mixed concrete 50 is made by the concrete wall 10 .

The conventional improved asphalt sheet 20 is made of asphalt (ASP) having a thickness of 3 to 5 mm, and vinyl paper (VIN) and backing paper are attached to both surfaces. This is for ease of roll-on. At this time, the body for actual waterproofing is asphalt (ASP) and vinyl paper (VIN). This is because the backing paper is only a roll-type protective material.

Conventionally, the improved asphalt sheet 20 is not only a material that does not have a bearing capacity without being dependent on the concrete wall 10, but is a material that lacks resistance and support for the horizontal pressure of the ready-mixed concrete 50 by itself. The reason that the conventional improved asphalt sheet 20 cannot stand on its own is because the material has a weak tensile strength.

As the ready-mixed concrete 50 poured into the G space of I is cured and cured, the construction of the bottom structure of the I space is completed.

After the construction of I is completed, the conventional improved asphalt sheet 20 is hidden behind the width D of the concrete wall 10, so it is not in direct contact with the backfill material. Even when in direct contact with the backfill material, the conventional improved asphalt sheet 20, which is weak in tensile strength and tear strength, has a problem in that the waterproof function is lost.

In addition to these problems, the additional problems are as follows.

The horizontal work space in which the horizontal spacing D between the forms 1 and 1 for the formation of the concrete wall 10 of FIG. 2a and the horizontal rungs 2 of the additional horizontal support structure related to the formwork 1 are combined. Inevitably, since the formwork (1)(1) support structure, that is, a separate additional horizontal support structure is added, it is inefficient and inefficient due to the overall formwork installation work and dismantling, and the work time is added and the work passage is blocked. There is this.

In addition, since the horizontal interval (D) of the concrete wall 10 is wide, curing and curing time of the ready-mixed concrete is required, and there is a problem that the subsequent process is not performed quickly.

⒜ The present invention installs a formwork assembly for pouring ready-mixed concrete in the vertical openings on both sides before and after the bottom space (G) (space I) of a rectangular cross-section in which the vertical and horizontal reinforcing bars are reinforced and the installation of the PE non-woven fabric waterproof sheet. The formwork assembly consists of a PE nonwoven waterproof sheet, a temporary support wire mesh, and a temporary self-supporting steel material. And temporary self-supporting steel is a vertical support member of the formwork assembly, and is a horizontal resistance tension member of the formwork assembly against the horizontal action pressure of the ready-mixed concrete being poured. The purpose is to make the work simple and efficient by omitting the horizontal work space to the outside of the bottom space (G) unlike the prior art by making the binding line' in charge,

⒝ In addition, the structure of the formwork assembly is not limited by the curing period as it is not only an extremely thin structure, but also has a structure independent of curing and curing, unlike the prior art in which the gap between forms for pouring supporting walls is wide. Another purpose is to make installation work easy and efficient, and follow-up work is also done quickly.

⒞ In addition, the formwork assembly is a material independent of curing and hardening, and both ends of the transverse reinforcing bar, which is a horizontal resistance tension member, are horizontally connected and bound to the symmetrical formwork assembly on both sides, and the bottom is applied to the horizontal action pressure of the ready-mixed concrete to be poured afterwards. Another purpose is to make the installation work easy and efficient because the horizontal support of the formwork assembly is simple as the transverse reinforcing bars placed inside the space (G) (space I) are directly resisted and supported by the horizontal tensile force (T). ,

⒟ The PE non-woven waterproof sheet of the formwork assembly remains in the lower and both sides of the bottom space (G) together with the poured ready-mixed concrete. After the ready-mixed concrete is hardened, the temporary self-supporting steel and temporary support wire mesh are removed, After demolition, only PE non-woven waterproof sheet is attached to the outer wall of the structure in the bottom space (G), so there are no temporary self-supporting steel and temporary support wire remaining on the outer wall of the structure. Another purpose is to serve as a sufficient protective material by the PE long fiber compressed nonwoven fabric having high tensile and tearing strength during filling and the cushioning asphalt bound and anchored thereto.

The configuration of the waterproof and formwork assembly in which the PE nonwoven waterproof sheet and the temporary support material of the present invention are integrally assembled will be described as follows.

The lower part and upper part of the underground structure are divided into rectangular sections Ⅰ and Ⅱ, and the bottom space (G) (space Ⅰ) is the lower part of the foundation concrete horizontal plane (C), the upper part of the horizontal open plane, and the vertical part It is a rectangular space part consisting of a side portion of an open surface, and assembling and installing the formwork assembly 100 on both side portions of the vertical open surface, but sequentially installed with the PE non-woven waterproof sheet 110 and the temporary support wire mesh 120 at regular intervals The formwork assembly 100 is made by the temporary self-supporting steel material 130, and at this time, the PE nonwoven waterproof sheet 110 is a PE long fiber compressed nonwoven fabric 112, and binding/anchor part (114a) and protrusion part (114b) It is made of the combination of the asphalt layer 114 with The vertical and horizontal reinforcement are reinforced in the bottom space (G) in a state in which the contact surface is installed on the temporary support wire mesh 120 and the PE nonwoven waterproof sheet 110 is installed, and the horizontal reinforcement 142 and the formwork assembly 100 ) between the temporary support wire mesh 120 and the tensile connection binding line 144 is horizontally connected and bound, and at this time, the "transverse reinforcing bar + tensile connection binding line" bound and connected to the formwork assembly 100 on both sides is the formwork assembly ( By becoming the horizontal resistance tension member 140 for 100), not only the upright independence of the formwork assembly 100 itself is stronger, but also PE nonwoven fabric, characterized in that it is fully performed as a formwork function against the horizontal action pressure of the ready-mixed concrete (R) It is a waterproof and formwork assembly in which a waterproof sheet and a temporary support material are integrally assembled.

here,

The PE compression nonwoven fabric 112 of the PE nonwoven waterproof sheet 110 has a weight of 230g-270g/m2, and the PE long fiber raw material nonwoven fabric having a thickness of 18.0-20.0mm is compressed and processed to a thickness of 0.47mm-0.5mm (t). ) of the PE compressed long fiber nonwoven fabric 112, but the tensile strength of the PE compressed long fiber nonwoven fabric 112 is 35 to 94 kgf/5 cm in the warp direction (MD), and 18 to 39 kgf/5 cm in the weft direction, while PE The thickness of the asphalt binding anchor part 114a with respect to the long fiber compressed nonwoven fabric 112 is 30 to 40% of the PE compressed long fiber nonwoven fabric 112 thickness (t), and the thickness of the asphalt protrusion 114b is 2.5 mm It is a waterproof and formwork assembly in which the PE nonwoven waterproof sheet and the temporary support material are integrally assembled.

Also,

The temporary self-supporting steel material 130 is made of a vertical support part 132 and a horizontal support part 134 having a plurality of through-holes 132a. The steel material 130 is vertically self-supporting, and the connection and binding of the horizontal support part 134 and the temporary support wire mesh 120 are normally performed through the through hole 132a of the horizontal support part 134 and the temporary support wire mesh 120 . It is a waterproof and formwork assembly in which a PE nonwoven waterproof sheet and a temporary support material are integrally assembled to be connected and bound by a binding wire, but the verticality of the temporary support wire mesh 120 is maintained by the temporary self-supporting steel material 130.

Not only that,

The tensile connection binding line 144 bound to the transverse reinforcing bar 142 is installed on the horizontal extension line of the transverse reinforcing bar 142 and penetrates the PE nonwoven waterproof sheet 110 and the temporary support wire mesh 120 of the formwork assembly 100. It is bound to the temporary support wire mesh 120, and the “transverse reinforcing bar 142 + the tensile connection binding line 144” becomes the horizontal resistance tension member 140 for the both sides of the formwork assembly 100, so that the ready-mixed concrete (R) is placed horizontally acting pressure It is a waterproof and formwork assembly in which a PE non-woven waterproof sheet and a temporary support material are integrally assembled with each other to resist and exert a horizontal tensile force (T).

The present invention is particularly for constructing a structure in the lower I space, that is, the bottom space (G). In the bottom space (G), only the front, rear, and both sides of the open surface, which are open surfaces, require formwork.

The horizontal open surface of the upper surface of the bottom space (G) (space I) is naturally horizontal by the gravity of the poured ready-mixed concrete (R), so there is no need for a formwork. In addition, the lower surface of the bottom space (G) (space I) is a closed section by the horizontal surface of the concrete foundation (C), so no formwork is required. It is for this reason that the formwork of the bottom space (G) is minimized.

Both sides of the bottom space (G) are vertical, and in the space, horizontal transverse reinforcing bars 142 reinforced at right angles to both sides of the vertical are reinforced. ), the other end is bound to the formwork assembly 100, and the horizontal resistance tension member 140 of “transverse reinforcing bar 142 + tensile connection binding wire 144” against the horizontal action pressure of the ready-mixed concrete (R). By being installed inside the bottom space (G), there is an advantage that the external horizontal interval of the bottom space (G) is omitted, so that the use of the bottom space (G) is made efficiently.

The formwork assembly 100 is an assembly assembly of the PE non-woven waterproof sheet 110 , the temporary support wire mesh 120 , and the temporary self-supporting steel material 130 .

First, the PE nonwoven waterproof sheet 110 is made of a PE long fiber compressed nonwoven fabric 112 and asphalt 114 . Asphalt 114 is bound and anchored to PE long fiber compression nonwoven fabric 112 . The relationship between the PE long fiber compressed nonwoven fabric 112 and the asphalt 114 is shown in Figure-3.

PE long fiber compressed nonwoven fabric 112 has a weight of 230g-270g/m2 and a PE long fiber raw material nonwoven fabric having a thickness of 18.0-20.0mm is compressed and processed to form a PE compressed long fiber with a thickness of 0.47mm-0.5mm (t) It is formed to be a nonwoven fabric 112, but the tensile strength is 35 to 94 kgf/5 cm in the warp direction (MD) and 18 to 39 kgf/5 cm in the weft direction.

The PE long fiber compression nonwoven fabric binding/anchor of the asphalt 114 is preferably 30 to 40% of the PE long fiber compression nonwoven fabric 112 thickness (t).

Asphalt 114 has a structure protruding from the lower portion of the PE long fiber compressed nonwoven fabric 112 . At this time, the binding/anchor portion 114a of the PE long fiber compressed nonwoven fabric 112 of the asphalt 114 is preferably 30 to 40% of the PE long fiber compressed nonwoven fabric 112 thickness (t). The thickness of the asphalt protrusion 114b is preferably 2.5 mm-.

The thickness of the asphalt protrusion 114b ensures that the waterproof function of the PE non-woven waterproof sheet 110 is made, and at the same time, the PE non-woven waterproof sheet 110 drilled by the tensile connection tying wire 144 is closed. It was made to be done on its own.

By binding and anchoring the asphalt 114 to 30-40% of the thickness t of the PE long fiber compressed nonwoven fabric 112, the PE long fiber compressed nonwoven fabric 112 and the asphalt 114 are integrated with the asphalt 114 to prevent their separation.

At this time, the asphalt protrusion 114b is on the ready-mixed concrete (R) side, and the PE long fiber compressed nonwoven fabric 112 is on the backfill side. The protruding asphalt is not only easy to attach with ready-mixed concrete (R), but also has excellent waterproof function. The PE long fiber compressed nonwoven fabric 112 has a high tensile strength and serves as a backfill protection material, and the asphalt protrusion 114b also serves as a cushioning material as a protection material.

Next, the temporary support wire mesh 120 of the formwork assembly 100 is a member that resists and supports the horizontal action pressure of the ready-mixed concrete (R) while maintaining the PE nonwoven waterproof sheet 110 vertically. The form of the temporary support wire mesh 120 is preferably grid-like welding. The diameter is preferably phi 5 mm. This is because it is enough to support the horizontal action pressure of the ready-mixed concrete (R) for the construction height of 1-1.5m of the bottom space (G) (space I).

Next, the temporary self-supporting steel material 130 of the formwork assembly 100 is a member that resists and supports the horizontal action pressure of the ready-mixed concrete (R) while maintaining the vertical support force of the temporary support wire mesh 120 .

A weight block 150 or a weight such as a sandbag is placed on the horizontal support part 134 of the temporary self-supporting steel material 130, and the temporary support wire mesh 120 is maintained vertically in a state where the verticality is maintained. The temporary self-supporting steel material 130 is installed at regular intervals with respect to the temporary support wire mesh 120 . The interval is preferably 1.5 to 2.0 m.

Now, the binding of the horizontal resistance tension member 140 and the formwork assembly 100 of the “transverse reinforcing bar 142 + the tensile connection binding line 144” will be described.

The tensile connection binding line 144 of the horizontal resistance tension member 140 passes through the PE nonwoven waterproof sheet 110 of the both-side formwork assembly 100 . The "penetrated tensile connection binding line 144" end is bound to the temporary support wire mesh 120 of the formwork assembly 100. The temporary self-supporting steel material 130 is bound and fixed to the temporary support wire mesh 120 . F is the binding finish line (F). The temporary support wire mesh 120 is bound to the horizontal support part 134 of the temporary self-supporting steel material 130 and is vertically independent. At this time, through the through hole 132a of the horizontal support part 134 and the temporary support wire mesh 120, it is connected and bound by a common binding wire. Ordinary binding wire refers to the same thing as a rebar binding wire (aka half life) at the construction site.

The tensile connecting wire 144 (aka half-saeng) is a baked wire that is very softly bent and is mainly used in construction sites. It is because the bending is soft and the binding is free. The diameter of the tensile connection binding wire 144 is #6 (φ4.6mm) ~ #10 for resistance and support of the ready-mixed concrete (R) to the horizontal action pressure. #6 (φ4.6mm) is preferable.

The transverse reinforcing bar 142 and the formwork assembly 100 (the temporary support wire mesh 120 or the temporary self-supporting steel material 130 ) are connected by a horizontal resistance tension member 140 . At this time, the connection between the transverse reinforcing bar 142 and the formwork assembly 100 is made by a tension connection binding line 144 . The binding of the tensile connection binding wire 144 is to follow a method commonly used in the construction site. Reinforcement of the longitudinal and transverse reinforcement is reinforced together with the spacer (S).

The penetrating PE non-woven waterproof sheet 110 has a structure built in the bottom space G, and then the formwork assembly 100 (that is, the temporary support wire mesh 120 and the temporary self-supporting steel 130) is removed. It is extremely easy to directly attach and seal the through-hole of the PE non-woven waterproof sheet 110 afterward. This is because a small piece of the new PE non-woven waterproof sheet 110 attached to the sealant is sufficient.

The advantages of the horizontal resistance tension member 140 and the formwork assembly 100 are summarized as follows.

The point that the thickness of the formwork assembly 100 is thin, the horizontal resistance tension member 140 is located inside the bottom space G, so that the external horizontal distance is omitted, and after the structure is built, the formwork assembly 100 ) [that is, the temporary support wire mesh 120 and the temporary self-supporting steel material 130] are removed and recycled again. The high degree PE long fiber compressed nonwoven fabric 112 and the cushioning asphalt 114 bound and anchored thereto] play a sufficient role as a protective material when backfilling, and the PE nonwoven waterproof sheet 110 attached to the outer wall of the building structure ), the sealant is attached to the filling of the through hole, the soldering is completely waterproof with a small piece of the PE non-woven waterproof sheet 110, and the protective material of the PE non-woven waterproof sheet 110 is ready-mixed concrete (R) of a structure with a simple horizontal action pressure. The point supported by the horizontal resistance tension member 140 is an advantage of the present invention.

⒜ The present invention installs a formwork assembly for pouring ready-mixed concrete in the vertical openings on both sides of the bottom space (G) (space I) of a rectangular cross-section where vertical and horizontal reinforcing bars are reinforced and the installation of the PE nonwoven fabric waterproofing sheet is installed. A is composed of a PE nonwoven waterproof sheet, a temporary support wire mesh, and a temporary self-supporting steel material. The self-supporting steel material is a vertical support material of the form assembly, and is a horizontal resistance tension member of the form assembly against the horizontal action pressure of the ready-mixed concrete being poured. 144)", unlike the prior art, the horizontal work space to the outside of the bottom space (G) is omitted, so that the work is made simple and efficient,

⒝ In addition, the structure of the formwork assembly is not limited by the curing period as it is not only an extremely thin structure, but also has a structure independent of curing and curing, unlike the prior art in which the gap between forms for pouring supporting walls is wide. The installation work is easy and efficient, and the follow-up work is also effective quickly.

⒞ In addition, the formwork assembly is a material independent of curing and hardening, and both ends of the transverse reinforcing bars 142, which are horizontal resistance tension members, are horizontally connected and bound to the symmetrical formwork assembly on both sides, and the bottom against the horizontal action pressure of the ready-mixed concrete to be poured afterwards. (bottom) Since the transverse reinforcing bar 142 placed inside the space (G) is directly resisted and supported by the horizontal tensile force (T), the horizontal support of the formwork assembly is simple and the installation work is easy and efficient,

⒟ The PE non-woven waterproof sheet of the formwork assembly remains in the lower and both sides of the bottom space (G) together with the poured ready-mixed concrete, and after the ready-mixed concrete is hardened, the temporary self-supporting steel and temporary support wire are removed After demolition, only PE non-woven waterproof sheet is attached to the outer wall of the structure in the bottom space (G). The supporting wire mesh is not only reusable, but also has the effect of serving as a sufficient protective material by the PE long fiber compressed nonwoven fabric 112 with high tensile and tear strength during backfilling and the cushioning asphalt 114 bound and anchored thereto. have.

[Fig. 1] A cross-sectional state diagram showing the installation state of a typical underground structure
[Fig. 2a] State diagram of the prior art in which a formwork (1) for forming a concrete wall (10) and a separate supporting structure related thereto are installed on the vertical side of the open surface on the horizontal surface (C) of the foundation concrete of space I
[FIG. 2B] A cross-sectional state diagram showing a state in which the conventional improved asphalt sheet 20 is laid on the vertical surface of the concrete wall 10 from which the formwork has been removed in FIG. 2A and the horizontal surface of the foundation concrete (C)
[Fig. 2c] Security cross-sectional state diagram of the state in which the ready-mixed concrete 50 is poured after the longitudinal and transverse reinforcing bars 40 together with the spacer 30 are reinforced in the G space of Fig. 2b
[Figure 3] A perspective view showing a state in which the extension part of the PE non-woven waterproof sheet installed on the bottom surface of the bottom space (G) of the present invention is fixed and supported by the temporary support wire mesh that is vertically supported and fixed to the temporary self-supporting steel material
[Fig. 4] A perspective view showing a state in which the transverse reinforcing bar 142 and the tensile connecting wire 144 bound to the temporary support wire mesh are connected together with the spacer (S) in the bottom space (G) of Fig. 3
[FIG. 5] A perspective view showing a state in which the tensile connection binding line 144 is bound to the transverse reinforcement 142 and the temporary support wire net together with the reinforcement of the vertical and horizontal reinforcement in the bottom space (G) of FIG.
[Figure 6] An enlarged perspective view of the PE non-woven waterproof sheet, the temporary support wire mesh and the temporary self-supporting steel material of the front view and the formwork assembly 100 of Figure 5
[FIG. 7] A cross-sectional view showing a state in which one integrated horizontal resistance tension member 140 is formed together with the tensile connection binding line 144 bound to the transverse reinforcing bars 142 on both sides while being bound to the formwork assembly 100 on both sides
[Figure 8] A perspective view showing a state in which the ready-mixed concrete is poured and cured in the bottom space (G) of Figure 5
[FIG. 9] A perspective view showing a state in which only the PE non-woven waterproof sheet is attached to the outer surface of the underground structure after the ready-mixed concrete of FIG.

The configuration of the installation method of the lower underground structure having a rectangular cross section using the waterproof and formwork assembly of the present invention will be described in detail with the accompanying drawings as follows.

It is divided into Ⅰ space [bottom space (G)] of a horizontal rectangular section and Ⅱ space of a vertical rectangular section, and the lower surface of the foundation concrete horizontal plane (C), the upper part of the horizontal open plane, and the vertical opening In constructing the bottom space (G) of the rectangular space part consisting of the side part of the

⒜ PE non-woven waterproof sheet 110 is installed on the lower surface of the basic concrete horizontal plane (C), and both ends of the PE nonwoven fabric are installed in contact with the vertical temporary support wire mesh 120 supported by the temporary self-supporting steel material 130. At this time, The PE nonwoven waterproof sheet 110 is made of a combination of a PE long fiber compressed nonwoven fabric 112 and an asphalt layer 114 having a binding/anchor portion 114a and a protrusion 114b, and the PE nonwoven waterproof sheet ( The installation of 110) is installed in contact with the vertical temporary support wire mesh 120 supported by the temporary self-supporting steel material 130 at both ends over the horizontal surface C of the base concrete, and the PE nonwoven waterproof sheet 110 ) is installed in the bottom space (G), longitudinal and transverse reinforcing bars are reinforced, and between the transverse reinforcing bars 142 and the temporary support wire mesh 120 of the formwork assembly 100, a tensile connection binding line 144. This horizontal connection and binding, and at this time, the "transverse reinforcing bar + tensile connection binding line" bound and connected to the both sides of the formwork assembly 100 becomes a horizontal resistance tension member for the formwork assembly 100, so that the formwork assembly 100 itself can stand upright. The step of assembling and forming the formwork assembly 100 that is fully performed as a formwork function against the horizontal working pressure of the ready-mixed concrete (R) as well as being stronger;

⒝ In the state in which the both-side formwork assembly 100 is assembled, before and after the longitudinal direction of the bottom space (G) (I space), a step of installing a conventional formwork in a right angle direction to the both sides vertical formwork assembly 100 ;

⒞ Pour ready-mixed concrete (R) in the bottom space (G), and after curing and hardening, the temporary self-supporting steel 130 and temporary support of the formwork assembly 100 installed on both sides of the bottom space (G) Wire mesh 120, and removing the common formwork.

⒟ The step of constructing sequentially in the longitudinal direction of the lower underground structure while repeating steps ⒜ to ⒞ above; the PE nonwoven waterproof sheet 110 and the temporary support material are integrally assembled waterproof and formwork assembly including; (100) is the installation method of the lower underground structure of a rectangular cross section.

here,

In step ⒜, the PE compression nonwoven fabric 112 of the PE nonwoven waterproof sheet 110 has a weight of 230g-270g/m2, and the PE long fiber raw material nonwoven fabric 112 having a thickness of 18.0-20.0mmmm is compressed and processed to 0.47 A PE compressed long fiber nonwoven fabric 112 of mm-0.5mm thickness (t) is formed, but the tensile strength of the PE compressed long fiber nonwoven fabric 112 is 35 to 94 kgf/5 cm in the warp direction (MD), and 18 to in the weft direction On the other hand, the thickness of the asphalt binding anchor part 114a for the PE long fiber compressed nonwoven fabric 112 is 30 to 40% of the PE compressed long fiber nonwoven fabric 112 thickness (t), and the asphalt protruding part It is an installation method of a lower underground structure of a rectangular cross section using a waterproof and formwork assembly in which the PE nonwoven waterproof sheet 110 and the temporary support material are integrally assembled with a thickness of 2.5 mm.

Not only that,

In step ⒜, the temporary self-supporting steel material 130 is composed of a vertical support part 132 and a horizontal support part 134 having a plurality of through holes 132a, and the horizontal support part 134 on which the weight of the weight block 150 is placed. The temporary self-supporting steel material 130 is vertically self-supporting by the PE non-woven waterproof sheet 110 and temporary support material, characterized in that the temporary support wire mesh 120 is vertically maintained by the temporary self-supporting steel material 130 This is an installation method of a lower underground structure with a rectangular cross section using a waterproof and formwork assembly.

Also,

The tensile connection binding wire 144 bound to the transverse reinforcing bar 142 in step ⒜ is installed on the horizontal extension line of the transverse reinforcing bar 142, and the PE nonwoven waterproof sheet 110 of the formwork assembly 100 and the temporary support wire mesh 120 ) penetrates and is bound to the temporary support wire mesh 120, and the "transverse reinforcing bar 142 + tensile connection binding line 144" becomes a horizontal resistance tension member 140 for the both sides of the formwork assembly 100, so ready-mixed concrete (R) A lower underground structure with a rectangular cross section using a waterproof and formwork assembly in which a PE nonwoven waterproof sheet 110 and a temporary support material are integrally assembled with a horizontal tensile force (T) to resist and exert a horizontal tensile force (T) against the pouring horizontal action pressure is the installation method of

The PE nonwoven waterproof sheet 110 of the mold assembly 100 is a composite member with a waterproof function and a formwork function, and a protective material function when backfilling. When backfilling, only the PE non-woven waterproof sheet 110 is attached to the outer wall of the structure after the temporary support wire mesh 120 and the temporary self-supporting steel material 130 are removed. Since it is backfilled in this state, it directly contacts and collides with the PE non-woven waterproof sheet 110 . At this time, the PE long fiber compressed nonwoven fabric 112 of the PE nonwoven waterproof sheet 110 has high tensile strength and tear strength, as well as the asphalt 114 bound and anchored thereto, and the cushioning action is combined to serve as a protective material.

"Transverse reinforcing bar + tensile connecting wire" becomes a horizontal resistance tension member for the formwork assembly 100, so that it is exerted resistance and supported by a horizontal tensile force (T) with respect to the horizontal action pressure of the ready-mixed concrete (R). It is a useful invention in which the horizontal support of the horizontal tensile force (T) is simple and the installation work is easy and efficient.

100; Formwork assembly (100)
110; PE non-woven waterproof sheet (110),
112; PE long fiber compressed nonwoven fabric 112, 114; asphalt layer, (114), 114a; Asphalt binding/anchor parts 114a and 114b; Asphalt protrusion (114b),
120; Temporary support wire mesh 120,
130; Temporary self-supporting steel materials 130, 132; vertical support portion 132, 132a; through-holes 132a, 134; horizontal support 134,
140; Horizontal resistance tension member 140, 142; transverse reinforcement 142, 144; Tensile connection binding line (144),
150; weight block (150)
C; Base concrete horizontal plane (C),
G; bottom space (G),
F; Binding finish line (F)
S; Spacer (S)
R; Ready-mixed concrete (R)

Claims (8)

The lower part and upper part of the underground structure are divided into rectangular sections Ⅰ and Ⅱ, and the bottom space (G) (space Ⅰ) is the lower part of the foundation concrete horizontal plane (C), the upper part of the horizontal open plane, and the vertical part It is a rectangular space part consisting of a side portion of an open surface, and assembling and installing the formwork assembly 100 on both side portions of the vertical open surface, but sequentially installed with the PE non-woven waterproof sheet 110 and the temporary support wire mesh 120 at regular intervals The formwork assembly 100 is made by the temporary self-supporting steel material 130, and at this time, the PE nonwoven waterproof sheet 110 is a PE long fiber compressed nonwoven fabric 112, and binding/anchor part (114a) and protrusion part (114b) It is made of the combination of the asphalt layer 114 with The vertical and horizontal reinforcement are reinforced in the bottom space (G) in a state in which the contact surface is installed on the temporary support wire mesh 120 and the PE nonwoven waterproof sheet 110 is installed, and the horizontal reinforcement 142 and the formwork assembly 100 ) between the temporary support wire mesh 120 and the tensile connection binding line 144 is horizontally connected and bound, and at this time, the "transverse reinforcing bar + tensile connection binding line" bound and connected to the formwork assembly 100 on both sides is the formwork assembly ( By becoming the horizontal resistance tension member 140 for 100), not only the upright independence of the formwork assembly 100 itself is stronger, but also PE nonwoven fabric, characterized in that it is fully performed as a formwork function against the horizontal action pressure of the ready-mixed concrete (R) A waterproof and formwork assembly in which a waterproof sheet and temporary support material are integrally assembled delete 2. The method of claim 1
The temporary self-supporting steel material 130 is made of a vertical support part 132 and a horizontal support part 134 having a plurality of through-holes 132a. The steel material 130 is vertically self-supporting, and the connection and binding of the horizontal support part 134 and the temporary support wire mesh 120 are normally performed through the through hole 132a of the horizontal support part 134 and the temporary support wire mesh 120 . A waterproof and formwork assembly in which a PE nonwoven waterproof sheet and a temporary support material are integrally assembled, characterized in that they are connected and bound by a binding wire, but the temporary support wire mesh 120 is vertically maintained by the temporary self-supporting steel material 130 2. The method of claim 1
The tensile connection binding line 144 bound to the transverse reinforcing bar 142 is installed on the horizontal extension line of the transverse reinforcing bar 142 and penetrates the PE nonwoven waterproof sheet 110 and the temporary support wire mesh 120 of the formwork assembly 100. It is bound to the temporary support wire mesh 120, and the “transverse reinforcing bar 142 + the tensile connection binding line 144” becomes the horizontal resistance tension member 140 for the both sides of the formwork assembly 100, so that the ready-mixed concrete (R) is placed horizontally acting pressure A waterproof and formwork assembly in which a PE non-woven waterproof sheet and a temporary support material are integrally assembled with each other to resist and exert a horizontal tensile force (T) against the It is divided into Ⅰ space [bottom space (G)] of a horizontal quadrilateral section and a vertical quadrilateral section Ⅱ space, and the lower part of the foundation concrete horizontal plane (C), the upper part of the horizontal open plane, and the vertical opening In constructing the bottom space (G) of the rectangular space part consisting of the side part of the direction

⒜ PE non-woven waterproof sheet 110 is installed on the lower surface of the basic concrete horizontal plane (C), and both ends of the PE nonwoven fabric are installed in contact with the vertical temporary support wire mesh 120 supported by the temporary self-supporting steel material 130. At this time, The PE nonwoven waterproof sheet 110 is made of a combination of a PE long fiber compressed nonwoven fabric 112 and an asphalt layer 114 having a binding/anchor portion 114a and a protrusion 114b, and the PE nonwoven waterproof sheet ( The installation of 110) is installed in contact with the vertical temporary support wire mesh 120 supported by the temporary self-supporting steel material 130 at both ends over the horizontal surface C of the base concrete, and the PE nonwoven waterproof sheet 110 ) is installed in the bottom space (G), longitudinal and transverse reinforcing bars are reinforced, and between the transverse reinforcing bars 142 and the temporary support wire mesh 120 of the formwork assembly 100, a tensile connection binding line 144. This horizontal connection and binding, and at this time, the "transverse reinforcing bar + tensile connection binding line" bound and connected to the both sides of the formwork assembly 100 becomes a horizontal resistance tension member for the formwork assembly 100, so that the formwork assembly 100 itself can stand upright. The step of assembling and forming the formwork assembly 100 that is fully performed as a formwork function with respect to the horizontal action pressure of the ready-mixed concrete (R) as well as being stronger;

⒝ In the state in which the both-side formwork assembly 100 is assembled, before and after the longitudinal direction of the bottom space (G) (I space), a step of installing a conventional formwork in a right angle direction to the both sides vertical formwork assembly 100 ;

⒞ Pour the ready-mixed concrete (R) in the bottom space (G), and after curing and hardening, the temporary self-supporting steel material 130 and the temporary support wire mesh of the formwork assembly 100 installed in the bottom space (G) (120) and removing the common formwork;

⒟ The step of constructing sequentially in the longitudinal direction of the lower underground structure while repeating steps ⒜ to ⒞ above; the PE nonwoven waterproof sheet 110 and the temporary support material are integrally assembled waterproof and formwork assembly including; Installation method of the lower underground structure of a rectangular section using (100) delete 6. The method of claim 5
In step ⒜, the temporary self-supporting steel material 130 is composed of a vertical support part 132 and a horizontal support part 134 having a plurality of through holes 132a, and the horizontal support part 134 on which the weight of the weight block 150 is placed. The temporary self-supporting steel material 130 is vertically self-supporting by the The PE nonwoven waterproof sheet 110 and the temporary support material are integrally assembled, characterized in that the vertical support of the temporary support wire mesh 120 is maintained by the temporary self-supporting steel material 130 to be connected and bound by a normal binding wire through the The installation method of the lower underground structure of a rectangular section using a waterproof and formwork assembly 6. The method of claim 5
The tensile connection binding wire 144 bound to the transverse reinforcing bar 142 in step ⒜ is installed on the horizontal extension line of the transverse reinforcing bar 142, and the PE nonwoven waterproof sheet 110 of the formwork assembly 100 and the temporary support wire mesh 120 ) penetrates and is bound to the temporary support wire mesh 120, and the "transverse reinforcing bar 142 + tensile connection binding line 144" becomes a horizontal resistance tension member 140 for the both sides of the formwork assembly 100, so ready-mixed concrete (R) A lower underground structure with a rectangular cross section using a waterproof and formwork assembly in which a PE nonwoven waterproof sheet 110 and a temporary support material are integrally assembled with a horizontal tensile force (T) to resist and exert a horizontal tensile force (T) against the pouring horizontal action pressure installation method of

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