KR20100088973A - Tunnel waterproof process of construction work that use waterproof material for tunnel and waterproof material for tunnel - Google Patents

Abstract

PURPOSE: A waterproof member for a tunnel and a tunnel waterproofing method using the same are provided to facilitate the installation of a drain sheet and a waterproof sheet in a shotcrete layer and securely attach the drain sheet to a Velcro fastener. CONSTITUTION: A waterproof member for a tunnel comprises a Velcro fastener, fixing pegs, a drain sheet, and a waterproof sheet. The Velcro fastener is fixed to a shotcrete layer(2), and a hook is formed on a side of the Velcro fastener. The fixing pegs secure the Velcro fastener in place on the shotcrete layer. The drain sheet has a loop to be attached to the hook of the Velcro fastener. The waterproof sheet is thermally fused to the other side of the drain sheet and comprises a flat part and a plurality of embossing projections. The embossing projections can be extended in multiple directions according to the extension pressure applied in irregular directions by the pressure of concrete and the uneven surface of the shotcrete layer when placing concrete for a lining concrete layer.

Description

Tunnel waterproof process of construction work that use waterproof material for tunnel and waterproof material for tunnel}

The present invention relates to a tunnel waterproof member and a tunnel waterproof construction method using the same, and more particularly, it is possible to simplify the installation of the drain sheet and the waterproof sheet in the shotcrete layer, the drain sheet is securely attached to the Velcro fastener It relates to a waterproof member and a tunnel waterproof construction method using the same.

A tunnel is a tunnel with a substantial internal cross section formed by drilling holes in a mountain, underground, or cutlery for the purpose of transportation, water transportation, etc. In recent years, the construction of urban tunnels that penetrate underground spaces of the city has been increasing as the construction of subways has increased in order to distribute road traffic on the ground.

As a construction method of such a tunnel, various methods have been developed and applied conventionally, and underground spaces including subway tunnels in urban areas are currently constructed as shown in FIG. 1. That is, the excavation is carried out at the construction site of the tunnel 1 by using an excavation device, and when there is a rock or the like, a tunnel ball is formed through the blasting operation due to gunpowder loading. Since the excavation surface of the tunnel 1 formed as described above is extremely curved and not suitable for undertaking subsequent waterproofing work, shotcrete is sprayed by shotcrete to stabilize the tunnel 1 excavation surface and smooth the waterproof ground surface. After constructing the layer (2), the non-woven fabric and the waterproof member, which are drainage layers, are then installed to prevent the infiltration of groundwater flowing into the tunnel (1). It is made by laying lining concrete layer 3, a concrete reinforcement wall that protects the tunnel inner wall.

On the other hand, in the structure that is in contact with moisture, including the tunnel (1), it is essential to perform a waterproof construction in order to prevent the penetration of moisture into the interior, especially in the case of the tunnel (1) because of the constant contact with the groundwater, the importance of such waterproof construction Is emphasized.

In general, the waterproof construction inside the tunnel 1 is fixed by installing the nonwoven fabric 5 on top of the shotcrete layer 2, and the waterproof sheet 6 is laminated on the upper portion of the nonwoven fabric 5 to build the inside of the tunnel 1. Water flowing into the non-woven fabric (5) flows to the lower portion is carried out in an induction waterproof method to be discharged through the drain pipe installed in parallel with the tunnel (1).

FIG. 2 is a schematic partial cross-sectional view showing a waterproof member composed of a nonwoven fabric 5 and a waterproof sheet 6. The shotcrete layer 2 is fixed with a fixing nail 8 at regular intervals to fix the nonwoven fabric 5. At this time, in order to fix the waterproof sheet 6 to be installed on the upper portion of the nonwoven fabric 5, a member called a randel 7 is inserted into the fixing nail 8 to be installed together, and on the upper portion of the nonwoven fabric 5 installed as above. The water-permeable waterproof sheet 6 is padded and thermally bonded to the landel 7 to form a waterproof layer.

Here, the landel (7) is a disk-shaped member for fixing the waterproof sheet (6) to be installed on the upper portion of the material is the same or similar to the material of the waterproof sheet (6) after the waterproof sheet (6) is overlapped It is a kind of fixing member for the waterproof sheet 6 which is melted when heated by a heat machine and heat-sealed integrally with the waterproof sheet 6.

However, the conventional method as described above is made by a method of thermal fusion of the landel 7 and the waterproof sheet 6 installed at a predetermined interval on the nonwoven fabric 5, in which case the nonwoven fabric 5 ), There is a risk of combustion, there is a problem that the construction of the builder is difficult because the junction with the Landel (7) is not visible, and furthermore, the construction of the nonwoven fabric (5) and the construction of the waterproof sheet (6) is made of a separate process There was a problem that the work is cumbersome.

In order to solve this problem, a waterproof member as shown in FIG. 3 has been developed and used in the related art. This is to form the fixing portion 5a integrally on the back surface of the nonwoven fabric 5, and the fixing portion 5a is brought into close contact with the shotcrete layer 2, and then the fixing nail 8 is compressed to compress the nonwoven fabric 5 into the shotcrete layer. Fix it to (2). The nonwoven fabric 5 and the waterproof sheet 6 are fixed to each other by heat fusion.

However, in the conventional tunnel waterproof member, at least two or more workers are disposed in order to install the nonwoven fabric 5 on the shotcrete layer 2 so that one or more workers do not sag down the nonwoven fabric. The tableting method of the fixing nail (8) should be carried out.

Therefore, the above-described method is very cumbersome and requires a lot of effort, so that not only work efficiency is lowered, but also a large number of workforces are put into place, which leads to problems in work efficiency and economy. In addition, when the ceiling is installed, the work should be upward. As the posture of the worker becomes unstable, the accuracy and workability of the tableting work decreases, and the fixing nail 8 is splashed or the worker falls from the work platform. Etc. The risk of safety accidents has risen.

An object of the present invention for solving the above problems is to provide a tunnel waterproof member and a tunnel waterproof construction method using the same to simplify the installation of the drain sheet and the waterproof sheet in the shotcrete layer.

Another object of the present invention is to provide a tunnel waterproof member and a tunnel waterproof construction method using the same, in which a drain sheet is securely attached to a Velcro fastener.

Tunnel waterproof member of the present invention for achieving the above object, Velcro fastener is fixed to the shotcrete layer and the hook is formed on one surface; A fixing nail fixed to the velcro fasteners and the shotcrete layer to fix the velcro fasteners to the shotcrete layer; A drain sheet having a loop formed on a corresponding surface to be attached to the hook of the Velcro fastener; It is fixed by being heat-sealed to the drain sheet, which is the opposite side of the loop, and stretches in the multi-axial direction according to the stretching pressure applied in the irregular direction by the pressure of concrete and the surface of the irregular shotcrete layer when the concrete is laid for the formation of the lining concrete layer. Characterized in that consisting of; waterproof sheet formed with a plurality of embossing projections having the same thickness as the flat portion.

One feature of the waterproof member for a tunnel of the present invention is that the loop of the drain sheet comprises a portion of the fiber constituting the nonwoven fabric of the drain sheet.

According to another aspect of the present invention, the loop of the drain sheet may include a needle plate provided with a plurality of needles while the drain sheet is wound on a winding roller while the drain sheet is horizontally transferred along the upper surface of the table. It is made of a fluff formed on the surface of the drain sheet while being lifted to the upper surface side of the table to be separated after being plugged in.

A waterproof member for a tunnel according to the present invention for achieving the above object includes: a first Velcro fastener fixed to a shotcrete layer and having a first hook formed on one surface thereof; A fixing nail fixed to the first Velcro fastener and the shotcrete layer to fix the first Velcro fastener to the shotcrete layer; A drain sheet having a first loop formed on a corresponding surface to be attached to the first hook of the first Velcro fastener and a second loop formed on a surface opposite to the first loop; It is attached to the second loop of the drain sheet and the same thickness as the flat portion so as to extend in the multi-axial direction in accordance with the pressure of the concrete and the stretching pressure applied in the irregular direction by the surface of the irregular shotcrete layer when the concrete is laid to form the lining concrete layer Waterproof sheet formed with a plurality of embossing projections; The second Velcro fastener is fixed to the waterproof sheet, the second hook is formed on one surface to be attached to the second loop of the drain sheet.

One feature of the waterproof member for tunnels of the present invention described above is that the first loop of the drain sheet includes a plurality of first needles while the drain sheet is wound on the winding roller while being transported horizontally along the lower surface of the first table. The first needle plate is installed is made of a fluff formed in the first loop of the drain sheet while being elevated to the lower surface side of the first table to be separated after being plugged into one surface of the drain sheet; The second loop of the drain sheet has a second needle plate having a plurality of second needles installed on the other surface of the drain sheet while the drain sheet is wound on the winding roller while being transported horizontally along the upper surface of the second table. It is then made of a fluff formed in the second loop of the drain sheet while being elevated to the upper surface side of the second table to be separated.

Tunnel waterproof construction method using the waterproof member for the tunnel to achieve the above object, the shotcrete layer forming step of pouring a shotcrete layer on the inner surface of the excavated tunnel; Velcro fastener cutting step of cutting the Velcro fastener formed with a hook to a fixed size to secure the Velcro fastener of a predetermined size along the shotcrete layer; Velcro fastener fixing step of fixing the cut Velcro fastener to the shotcrete layer using a nail; Preparing a drain sheet having a loop on the corresponding surface to be attached to the hook of the Velcro fastener, and a waterproof sheet formed with a plurality of embossed projections having the same thickness as the flat portion to extend in the multi-axial direction in accordance with the stretching pressure applied in an irregular direction Drainage sheet and waterproof sheet preparation step; A heat dissipation sheet and a water dissipation sheet for heat dissipation and fixing the planar portion of the waterproof sheet to the opposite side of the loop of the water dissipation sheet; Attaching the loop surface of the drain sheet to the hook of the Velcro fastener to attach the drain sheet and the waterproof sheet along the inner surface of the tunnel; Characterized in that consisting of; lining concrete layer forming step of finishing by pouring concrete on one surface of the waterproof sheet.

In the present invention as described above, the hook-shaped Velcro fastener is fixed to the circumference of the shotcrete layer so that the loop of the drain sheet is attached. Therefore, if one end of the drain sheet is attached to the velcro fastener fixed at the bottom of one side of the tunnel and then the drain sheet is pushed up along the curved surface of the shotcrete, the loop surface of the drain sheet is attached to the hooks of the velcro fasteners facing each other and the inner circumferential surface of the tunnel Is attached to. Therefore, when the drain sheet is in close contact with the Velcro fasteners of the shotcrete layer, the drain sheet is simply attached to the shotcrete layer so that one worker can simply install the drain sheet, thereby reducing labor costs and greatly improving work efficiency.

The drain sheet of the present invention is elevated to the upper surface side of the table so that the needle plate provided with a plurality of needles is inserted into the drain sheet while being wound on the winding roller while being transported in the horizontal direction along the upper surface of the table. Accordingly, while the drain sheet is transported in the horizontal direction, the plurality of needles are separated after being inserted into the drain sheet while being lifted in the vertical direction, and thus the fluff is formed on the surface of the drain sheet by the needles while the conveying directions of the drain sheet and the needles are staggered. The fluff formed on the surface of the drain sheet securely engages the hooks of the Velcro fasteners relative to the surface of the drain sheet in a flat state. Therefore, since the drain sheet is securely attached to the Velcro fasteners, workability is improved and construction conditions are good.

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

Figure 4 is a schematic cross-sectional view showing a state in which the waterproof member for the tunnel of the present invention is constructed, Figure 5 is a schematic partial cross-sectional view showing an embodiment of the waterproof member 10 of the present invention, which is a Velcro fastener (11), It consists of a fixing nail 12, a drain sheet 13, a waterproof sheet (14).

The Velcro fastener 11 is fixed to the shotcrete layer 2, and a hook 11a is formed on one surface. The Velcro fasteners 11 are cut to a predetermined size and are fixed to the outer surface of the shotcrete layer 2 so as to be spaced apart at regular intervals.

Here, the Velcro fastener 11 may be cut to a predetermined size and fixed to the shotcrete layer 2 as described above, but may be formed in one long line. Such a single Velcro fastener 11 may be fixed to the inner circumferential surface of the shotcrete layer 2 by a plurality of fixing nails 12.

The fixing nail 12 serves to fix the Velcro fastener 11 to the shotcrete layer 2. That is, the Velcro fasteners 11 are brought into close contact with the shotcrete layer 2 and then compressed into the Velcro fasteners 11 to fix them to the shotcrete layer 2.

The drain sheet 13 is provided with a loop 13a on the corresponding surface to be attached to the hook of the Velcro fastener 11. The loop 13a of this drain sheet 13 consists of a part of the fiber which comprises the nonwoven fabric which is a material of the drain sheet 13. As shown in FIG. The nonwoven fabric has a gap between them because of its relatively poor fiber composition, and serves as a loop 13a. Therefore, when the drain sheet 13 is in close contact with the hook 11a of the Velcro fastener 11, the hook 11a enters between the fibers of the drain sheet 13, and the fiber and the hook 11a are caught while being attached to each other.

When the roof 13a surface of the drain sheet 13 is relatively flat and the fibers of the nonwoven fabric are relatively dense, as shown in FIG. 6, fluff can be formed on the roof 13a surface of the drain sheet 13.

That is, the drain sheet 13 of long length passes through the upper surface of the table 20 and one end thereof is wound around the take-up roller 21. The upper part of the table 20 is installed so that the needle plate 22 having a plurality of needles 23 is lifted so as to form a fluff on the surface of the loop 13a of the drain sheet 13. Lifting of the needle plate 22 may be made by a hydraulic cylinder (not shown), or may be made by a mechanical chain.

When the take-up roller 21 is rotated by a drive motor (not shown), the drainage sheet 13 is wound around the take-up roller 21 while being transferred horizontally along the upper surface of the table 20. At this time, the needle plate 22 moves up and down on the drainage sheet 13 side.

While the needle plate 22 is lowered and the needles 23 are stuck in the loop 13a surface of the drain sheet 13 and the ejecting operation is repeated, the drain sheet 13 is horizontally along the upper surface of the table 20. Continues to be transported.

If only the needles 23 of the needle plate 22 are lifted to the roof 13a side of the drain sheet 13 while the drain sheet 13 is fixed and not transferred, the lint is formed on the loop 13a side of the drain sheet 13. It is not formed. However, even while the needle plate 22 is raised and lowered, the drainage sheet 13 is transferred in the horizontal direction. That is, since the drain sheet 13 is transferred even while the needles 23 are inserted into the drain sheet 13, the needles 23 are completely spaced from the drain sheet 13 after being inserted into the drain sheet 13. The roof 13a surface of the drainage sheet 13 is partially torn by the needles 23 by the horizontal transport distance of the drainage sheet 13 during the process.

Accordingly, while the drain sheet 13 is horizontally transported along the upper surface of the table 20, the needle plate 22 provided with a plurality of needles 23 is inserted into the drain sheet 13 while being wound on the winding roller 21. The lint is formed on the surface of the drain sheet 13 while being elevated to the upper surface side of the table 20 to be separated after being plugged in.

Thus, the fluff formed on the surface of the loop 13a of the drain sheet 13 is easily coupled to the hook 11a of the Velcro fastener 11. Even if the drain sheet 13 is pressed slightly without strongly pressing the Velcro fastener 11 side, the fluff is easily attached to the hook 11a of the Velcro fastener 11.

Such fluff may be formed continuously on the surface of the loop 13a of the drain sheet 13 as shown in FIG. 6, but is formed to be spaced apart from the loop 13a surface of the drain sheet 13 by a predetermined interval. May be

This can be made by adjusting the winding speed of the winding roller 21 or the falling speed of the needle plate 22. First, to form a fluff on the entire surface of the loop 13a of the drain sheet 13, it may be as follows. When the needle plate 22 is lowered and raised, a fluff is formed on the roof 13a surface of the drain sheet 13 by the width of the needles 23. Before the formed fluff completely escapes the lower projection surface of the needles 23, the needle plate 22 is lowered, inserted into the drain sheet 13, and then raised. When repeated in this manner, fluff is continuously formed on the surface of the loop 13a of the drain sheet 13.

On the other hand, to form a fluff so as to be spaced apart by the interval of the Velcro fasteners 11 on the roof (13a) surface of the drain sheet (13). When the needle plate 22 is lowered and raised, a fluff is formed on the surface of the loop 13a of the drain sheet 13 by the width of the needles 23. When the formed fluff is transported horizontally along the upper surface of the table 20 to be transported by the separation width of the Velcro fasteners 11, the needle plate 22 is lowered and inserted into the drain sheet 13 and then raised. When repeated as described above, the fluff is formed on the surface of the loop 13a of the drain sheet 13 by a predetermined interval.

The waterproof sheet 14 is heat-sealed and fixed to the drain sheet 13, which is the opposite side of the loop 13a. The waterproof sheet 14 is planar so as to extend in the multi-axial direction in accordance with the pressure of the concrete and the stretching pressure applied in the irregular direction by the surface of the irregular shotcrete layer 2 when the concrete is laid for the formation of the lining concrete layer 3. A plurality of embossing protrusions 14b having the same thickness as the portion 14a are formed.

The embossing protrusions 14b formed on the waterproof sheet 14 are formed in a circular shape and a cross section in an arc shape so as to extend in the multiaxial direction. Therefore, when the lining concrete layer 3 is poured and the waterproof sheet 14 is brought into close contact with the surface of the irregular shotcrete layer 2, it is pressurized to extend in an irregular direction. At this time, the embossing of the waterproof sheet 14 made to extend in the multiaxial direction is performed. The protrusions 14b are appropriately elongated to suit the stretching pressures in various directions applied by the shotcrete layer 2 and the lining concrete layer 3.

The embossing protrusions 14b are formed to have an interval of 2 to 150 mm. If the spacing between the embossing protrusions 14b is less than 2 mm, the number of embossing protrusions 14b is unnecessarily increased and the material is wasted as much. If the spacing between the embossing projections (14b) exceeds 150mm, a problem occurs that the waterproof sheet 14 is not extended enough when the pressure is applied by the concrete.

The waterproof sheet 14 is the two adjacent waterproof sheet 14 is heat-sealed, the two sides of the plane except for the embossing projections (14b) overlap each other and then the parts by heat-sealing the joint. Therefore, when the two adjacent waterproof sheet 14 is fused, the embossing protrusions 14b are not deformed or damaged and thus the extension function of the waterproof sheet 14 is not degraded.

10 is a flowchart illustrating a tunnel waterproofing construction method using the waterproof member 10 of the present invention. Referring to this, a tunnel waterproofing construction method using the tunnel waterproofing member 10 is as follows.

First, the shotcrete layer forming step (S10) of pouring the shotcrete layer (2) on the inner surface of the excavated tunnel (1).

When the shotcrete layer 2 is formed, the Velcro for cutting the Velcro fastener 11 having the hook 11a formed at a constant size to fix the Velcro fastener 11 having a constant size along the outer circumferential surface of the shotcrete layer 2 at regular intervals. Has a fastener cutting step (S20).

Here, the Velcro fastener 11 may be cut to a predetermined size and fixed to the shotcrete layer 2 as described above, but may be formed in one long line. Such a single Velcro fastener 11 may be fixed to the inner circumferential surface of the shotcrete layer 2 by a plurality of fixing nails 12.

When the Velcro fastener 11 is cut to a certain size, it has a Velcro fastener fixing step S30 for fixing the cut Velcro fastener 11 to the shotcrete layer 2 using the nail 12. Since the cut Velcro fasteners 11 are relatively small in size, they are not only easy to carry, but also light in weight, making it easy to tablet the shotcrete layer 2.

After the Velcro fastener fixing step (S30), it has a drainage sheet and a waterproof sheet preparation step (S40). In this step (S40), so as to be attached to the hook (11a) of the Velcro fastener 11, the drain sheet (13) having a loop (13a) formed on the corresponding surface, and to extend in the multi-axial direction in accordance with the stretching pressure applied in an irregular direction A waterproof sheet 14 having a plurality of embossing protrusions 14b having the same thickness as the flat portion 14a is prepared.

When the drain sheet 13 and the waterproof sheet 14 are prepared, the drain sheet and the waterproof sheet to heat-fix the surface 14a of the waterproof sheet 14 and the surface opposite the loop 13a of the drain sheet 13 to each other. It has a heat fusion step (S50). Here, the drainage sheet 13 and the waterproof sheet 14 may be attached first before they are fixed to the shotcrete layer 2 as described above, but after the drainage sheet 13 is fixed to the shotcrete layer 2, the waterproof sheet ( 14 may be heat-sealed to the drain sheet 13.

When the drain sheet 13 and the waterproof sheet 14 are attached, the roof 13a surface of the drain sheet 13 is attached to the hook 11a of the Velcro fastener 11 to attach the drain sheet 13 and the waterproof sheet 14. It has a step of attaching the drainage sheet and the waterproof sheet (S60) to attach along the inner surface of the tunnel (1).

As such, when the drainage sheet 13 and the waterproof sheet 14 are fixed to the shotcrete layer 2, the draining sheet 13 and the waterproof sheet 14 have a lining concrete layer forming step (S70) of finishing by pouring concrete on one surface of the waterproof sheet 14.

The tunnel waterproof member and the tunnel waterproof construction method using the same of the present invention has the following advantages.

First, the velcro fastener 11 having the hook 11a is fixed to the periphery of the shotcrete layer 2 so that the loop 13a of the drain sheet 13 is attached. Therefore, one end of the drain sheet 13 is attached to the velcro fastener 11 fixed at the bottom of one side of the tunnel 1, and then the drain sheet 13 is pushed up along the curved surface of the shotcrete layer 2 to drain the sheet 13. The surface of the loop 13a is attached to the inner circumferential surface of the tunnel 1 while being sequentially attached to the hooks 11a of the opposed Velcro fasteners 11.

Therefore, when the drain sheet 13 is brought into close contact with the Velcro fasteners 11 of the shotcrete layer 2, the drain sheet 13 is simply attached to the shotcrete layer 2 so that one worker can easily install the drain sheet 13. This not only reduces labor costs but also greatly improves work efficiency.

Second, while the drain sheet 13 of the present invention is wound along the upper surface of the table 20 in the horizontal direction while being wound on the take-up roller 21, the needle plate 22 provided with a plurality of needles 23 has a drain sheet ( 13) and then lifted to the upper surface side of the table 20 to be separated after being plugged in. Therefore, while the drain sheet 13 is transported in the horizontal direction, the plurality of needles 23 are lifted in the vertical direction while being inserted into the drain sheet 13 and separated, so that the conveying directions of the drain sheet 13 and the needles 23 are Fluff is formed on the surface of the drain sheet 13 by staggering the needles 23.

The fluff formed on the surface of the drain sheet 13 is securely coupled to the hook 11a of the Velcro fastener 11 compared to the surface of the drain sheet 13 in a flat state. Therefore, since the drain sheet 13 is securely attached to the Velcro fastener 11, workability is improved and the construction state is good.

8 is a schematic partial separation cross-sectional view showing another embodiment of the waterproof member 30 of the present invention, which is a first Velcro fastener 31, a fixing nail 32, a drain sheet 33, a waterproof sheet 34, The second Velcro fastener 35 is formed.

The first Velcro fastener 31 is fixed to the shotcrete layer 2, and a first hook 31a is formed on one surface thereof. The fixing nail 32 is fixed to the first Velcro fastener 31 and the shotcrete layer 2 to fix the first Velcro fastener 31 to the shotcrete layer 2. The drainage sheet 33 has a first loop 33a formed on a corresponding surface so as to be attached to the first hook 31a of the first Velcro fastener 31, and a second loop (1) on the side opposite to the first loop 33a. 33b) is formed. The waterproof sheet 34 is attached to the second loop 33b of the drain sheet 33 and is irregular due to the pressure of the concrete and the surface of the irregular shotcrete layer 2 when the concrete is poured for the formation of the lining concrete layer 3. A plurality of embossing protrusions 34b having the same thickness as the planar portion 34a are formed to extend in the multiaxial direction in accordance with the stretching pressure applied in the direction. A second hook 35a is formed on one surface of the second Velcro fastener 35 so as to be fixed to the waterproof sheet 34 and attached to the second loop 33b of the drain sheet 33.

In the waterproof member 30 of the present invention, since the first Velcro fasteners 31 are fixed to the shotcrete layer 2, the first loop 33a surface of the drain sheet 33 is easily attached to the shotcrete layer 2. You can.

In addition, since the second Velcro fastener 35 is attached to the inner surface of the waterproof sheet 34, it is very convenient to attach the waterproof sheet 34 to the surface of the second loop 33b. That is, the second hook 35a of the second Velcro fastener 35 is made of the drain sheet 33 by simply pressing the waterproof sheet 34 against the surface of the second loop 33b of the drain sheet 33. It is simply coupled to the two loops 33b.

Therefore, the waterproof member 30 of the present invention is easily attached to the drain sheet 33 and the waterproof sheet 34 to the shotcrete layer (2). In addition, since the combination thereof is made by the first Velcro fastener 31 and the second Velcro fastener 35, when the attachment state is not easy, simply detach and attach again.

FIG. 9 is a schematic side view showing another embodiment of forming the fluff on the drain sheet 33, which is formed by forming the fluff on the first loop 33a and the second loop 33b of the drain sheet 33. FIG. Both sides of the drain sheet 33 are attached to the first Velcro fastener 31 and the second Velcro fastener 35 well.

The present invention is installed such that the drain sheet 33 is wound around the winding roller 21 of FIG. 7 after passing the lower surface of the first table 40 and the upper surface of the second table 44. On the lower surface of the first table 40, a first needle plate 42 provided with a plurality of first needles 43 is provided to be elevated to the first table 40 side. On the upper surface of the second table 44, a second needle plate 45 provided with a plurality of second needles 46 is provided to be elevated to the second table 44 side.

Accordingly, a plurality of first needles 43 are formed on one surface of the drain sheet 33 while the drain sheet 33 is wound in the winding roller 21 while being horizontally transported along the lower surface of the first table 40. A fluff is formed in the first loop 33a of the drain sheet 33 while being lifted to the lower surface side of the first table 40 to be separated after being plugged in.

In addition, a plurality of second needles 46 are inserted into the other surface of the drain sheet 33 while the drain sheet 33 is horizontally moved along the upper surface of the second table 44 while being wound on the winding roller 21. As a result, fluff is formed on the second loop 33b of the drain sheet 33 while being lifted to the upper surface side of the second table 44 to be separated.

Therefore, since the fluff is formed on both sides of the drain sheet 33, that is, the first loop 33a and the second loop 33b, the drain sheet 33 is formed on the first Velcro fastener 31 and the second Velcro fastener 35. It is easily attached.

1 is a schematic cross-sectional view of a conventional tunnel waterproof structure

Figure 2 is a schematic partial cross-sectional view showing an embodiment of a conventional waterproof member

Figure 3 is a schematic partial cross-sectional view showing another embodiment of the conventional waterproof member

Figure 4 is a schematic cross-sectional view showing a state in which the waterproof member for the tunnel of the present invention construction

Figure 5 is a schematic partial cross-sectional view showing an embodiment of the waterproof member of the present invention

Figure 6 is a schematic side view showing an embodiment of forming a fluff on the drain sheet

Figure 7 is a schematic side view showing another embodiment of forming a fluff on the drain sheet

Figure 8 is a schematic partial separation cross-sectional view showing another embodiment of the present invention waterproof member

Figure 9 is a schematic side view showing another embodiment of forming a fluff on the drain sheet

10 is a flowchart showing a tunnel waterproof construction method using the waterproof member of the present invention.

* Description of the symbols for the main parts of the drawings *

1: tunnel 2: shotcrete layer

3: lining concrete layer 10,30: waterproof member

11: Velcro fastener 11a: hook

12,32: Fixing nail 13,33: Drain sheet

13a: loop 14,34: waterproof sheet

14a, 34a: flat portion 14b, 34b: embossed projection

20: Table 21: Winding roller

22: needle plate 23: needle

31: First Velcro Fastener 31a: First Hook

33a: first loop 33b: second loop

35: second Velcro fastener 35a: second hook

40: first table 42: first needle plate

43: first hand 44: second table

45: second needle 46: second needle

Claims (6)

Velcro fasteners 11 fixed to the shotcrete layer 2 and having hooks 11a formed on one surface thereof; Fixing nails 12 fixed to the Velcro fasteners 11 and the shotcrete layer 2 to fix the Velcro fasteners 11 to the shotcrete layer 2; A drain sheet 13 having a loop 13a formed on a corresponding surface to be attached to the hook of the Velcro fastener 11; It is fixed by being heat-sealed to the drain sheet 13, which is the opposite side of the loop 13a, and is irregular due to the pressure of the concrete and the surface of the irregular shotcrete layer 2 when the concrete is poured to form the lining concrete layer 3. Waterproofing member for a tunnel, characterized in that consisting of; a waterproof sheet 14 formed with a plurality of embossing projections (14b) having the same thickness as the flat portion (14a) in accordance with the stretching pressure applied in the direction. The method of claim 1, wherein the loop 13a of the drain sheet 13 is Tunnel waterproof member, characterized in that made of a portion of the fiber constituting the non-woven fabric of the drain sheet (13). The method of claim 1, wherein the loop 13a of the drain sheet 13 is While the drain sheet 13 is wound along the upper surface of the table 20 in the horizontal direction while being wound on the winding roller 21, a needle plate 22 having a plurality of needles 23 installed therein is the drain sheet 13. The waterproof member for the tunnel, characterized in that made of lint formed on the surface of the drain sheet while being elevated to the upper surface side of the table 20 to be separated after being plugged in. A first Velcro fastener 31 fixed to the shotcrete layer 2 and having a first hook 31a formed on one surface thereof; Fixing nails 32 fixed to the first Velcro fasteners 31 and the shotcrete layer 2 to fix the first Velcro fasteners 31 to the shotcrete layer 2; The first loop 33a is formed on the corresponding surface so as to be attached to the first hook 31a of the first Velcro fastener 31, and the second loop 33b is formed on the opposite side of the first loop 33a. Sheet 33; Attached to the second loop 33b of the drainage sheet 33 and when the concrete is laid for forming the lining concrete layer 3, the pressure of the concrete and the stretching pressure applied in an irregular direction by the surface of the irregular shotcrete layer 2 A waterproof sheet 34 in which a plurality of embossing protrusions 34b having the same thickness as the planar portion 34a are formed to extend in the multi-axial direction so as to fit in the multiaxial direction; A second velcro fastener (35) fixed to the waterproof sheet (34) and having a second hook (35a) formed on one surface thereof so as to be attached to the second loop (33b) of the drain sheet (33); Waterproof member for tunnels. The method of claim 4, wherein The first loop 33a of the drain sheet 33 is While the drain sheet 33 is wound along the lower surface of the first table 40 in the horizontal direction and is wound on the winding roller 21, the first needle plate 42 on which the plurality of first needles 43 are installed is It is made of a fluff formed in the first loop (33a) of the drain sheet (33) while being elevated to the lower surface side of the first table (40) to be separated after being plugged into one surface of the drain sheet (33); The second loop 33b of the drain sheet 33 is The second needle plate 45 having a plurality of second needles 46 installed therein while the drainage sheet 33 is wound in the winding roller 21 while being horizontally transported along the upper surface of the second table 44. Tunnel, characterized in that made of a fluff formed in the second loop 33b of the drain sheet 33 while being elevated to the upper surface side of the second table 44 to be separated after being plugged into the other surface of the drain sheet 33 Waterproof member. A shotcrete layer forming step (S10) of pouring the shotcrete layer 2 on the inner surface of the excavated tunnel 1; Velcro fastener cutting step (S20) of cutting the Velcro fastener (11) formed with a hook (11a) to a predetermined size to secure the Velcro fastener (11) along the shotcrete layer (2); Velcro fastener fixing step (S30) for fixing the cut Velcro fastener (11) to the shotcrete layer (2) by using a nail 12; A drain sheet 13 having a loop 13a formed on a corresponding surface to be attached to the hook 11a of the velcro fastener 11, and a flat portion 14a to extend in a multi-axial direction in accordance with an extension pressure applied in an irregular direction; A drainage sheet and a waterproof sheet preparing step (S40) of preparing a waterproof sheet 14 having a plurality of embossing protrusions 14b having the same thickness; A heat dissipation sheet and a waterproof sheet heat fusion step (S50) of fixing the surface side 14a of the prepared water dissipation sheet 13 on the opposite side to the roof 13a by heat fusion; Attaching the loop 13a surface of the drain sheet 13 to the hook 11a of the Velcro fastener 11 to attach the drain sheet 13 and the waterproof sheet 14 along the inner surface of the tunnel 1. Attaching the drainage sheet and the waterproof sheet (S60); Tunnel waterproof construction method using a waterproof member, characterized in that consisting of; lining concrete layer forming step (S70) to finish by pouring concrete on one surface of the waterproof sheet (14).

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