KR100978315B1 - Rock Shed by using Corrugated Steel Plate and Geotextile and the Construction Method thereof - Google Patents

Abstract

The present invention relates to a corrugated steel sheet using a corrugated steel sheet and a geotextile that can achieve a stable structure, speedy construction, and smooth road traffic using a corrugated steel sheet or a corrugated steel tube and a geotextile, and a construction method thereof.

The present invention, the corrugated steel sheet structure is installed on the road; A concrete backfill filled between the corrugated steel plate structure and the road slope; A foundation fill portion formed from an upper portion of the concrete backfill to a top of a corrugated steel sheet structure; And a cushioning material formed from an upper end to an upper side of the foundation fill part and the corrugated steel sheet structure to a design height, wherein the cushioning material is lowered from the slope toward the valley part as its height is gradually increased from the valley part to its design height. Provided is a rock tunnel and a construction method using a corrugated steel sheet and a geotextile forming a downward slope.

According to the present invention to construct a structurally stable arched rock tunnel, and to minimize the load and lateral pressure, by applying a pocket type earthwork method using geotextile, a kind of geotextile, construction cost reduction, construction period reduction, road clearance The effect of improving the efficiency and economics by securing space is obtained.

Corrugated steel pipe, corrugated steel sheet, geotextile, filament tunnel, mountain road

Description

Rock shed by using corrugated steel plate and geotextile and the construction method

The present invention relates to a rock formation tunnel and its construction method, and more particularly, in the situation where rockfall reflection surface is very unstable, the application of the reinforcement method or the protection method is not easy, or the stabilization of the slope can not be completely secured. Corrugated steel pipe or corrugated steel using corrugated steel sheet and geotextile to achieve stable construction, speedy construction and smooth road traffic using corrugated steel pipe or corrugated steel sheet (hereinafter referred to simply as "corrugated steel sheet") and geotextile It is about a method.

In general, rock tunnels are used to prevent rockfall on roads that pass through mountainous areas, such as large mountain ranges. In particular, in the railway sector, piam tunnels have been used for a long time. Recently, as the mountain roads increase due to rapid industrialization and urban development, the use of piam tunnels is gradually increasing.

The rock tunnel is a slope rock prevention method that prevents damage caused by falling rocks by installing sheds on the road by using steel or reinforced concrete to receive rockfalls as sheds or inducing them to valleys. In addition, the rock tunnel is applied when the rockfall reflecting surface is formed with steep slope, so that it is not easy to apply the reinforcement method or the protection method among the unstable areas, or the stabilization of the slope is not completely secured.

These rock tunnels are largely composed of a roof part sloped from a slope to a valley, an anchor part for fixing the upper part of the roof to a rockfall rock slope, and a foundation part for supporting the lower part of the roof. It is designed with cushioning materials (gravel, waste tires, expanded polystyrene, etc.) to allow rocks and soil to flow off the road in sheds. At this time, it is designed to withstand the impact of falling rocks considering the energy of falling rocks and the energy absorption capacity of the rock tunnel.

Recently, the construction of the rock rock tunnel is often installed on a running road, so most of them are designed as a box for factory manufacturing. Such structures are required to be installed with a very thick wall because the structure receives the load and lateral earth pressure as it is. There are disadvantages. In addition, in the case of in-site casting structures, the construction speed is delayed due to the limitation of the concrete placing that can be constructed, and the quality and reliability thereof are degraded due to the effect of dry shrinkage cracking and thermal expansion.

In particular, the box-type concrete used in the conventional rock tunnel has resistance to earth pressure or water pressure when its strength is exerted, but structurally, maintenance difficulties occur in the long term due to the concentration of load and side soil pressure. Problems such as excessive construction costs and prolonged construction periods occur.

The present invention is to solve the conventional problems as described above, the object is

In the formation of the rock tunnel, an arched corrugated steel sheet having structural stiffness is applied to provide a rock tunnel and a construction method using a corrugated steel sheet and geotextile that are structurally stable and robust compared to conventional concrete structures.

In addition, the present invention by applying the geotextile earthwork method to the side and top of the corrugated steel sheet as another object can reduce the load and reduce the lateral pressure, shorten the construction period, the waveform that can improve the efficiency and economic efficiency than the conventional method (提) It is to provide a rock tunnel and a construction method using a steel sheet and geotextile.

In order to achieve the above object, the present invention, in the rock tunnel installed on the road to prevent rockfall,

Corrugated steel plate structure installed on the roadway;

A concrete backfill filled between the corrugated steel plate structure and the road slope;

A foundation fill portion formed from an upper portion of the concrete backfill to a top of a corrugated steel sheet structure; And

And a cushioning material formed from the upper end of the foundation fill portion and the corrugated steel sheet structure to an upper design level, wherein the cushioning material is lowered from the slope to the valley part as its height is gradually increased from the valley part to its design height. It provides a rock tunnel using a corrugated steel sheet and geotextile characterized in that to form an inclined surface.

In another aspect, the present invention preferably provides a corrugated steel sheet and a rock tunnel using the geotextile, characterized in that the base concrete portion is formed on both lower ends of the corrugated steel sheet structure.

And the present invention preferably provides a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the concrete backfill is to install a drain on the slope side to exclude groundwater flowing from the slope.

In another aspect, the present invention is characterized in that the basic fill portion is installed geotextile and subjected to the fill on the geotextile, the geotextile is closed to form a layer and the geotextile is configured to exert a tensile force by the loading load It provides a rock tunnel using corrugated steel sheet and geotextile.

And the present invention preferably provides a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the foundation fill section is formed so that the groundwater flowing from the slope to form a drainage layer by the coarse aggregate on the slope side to the lower drain. do.

In addition, the present invention preferably the buffer material is a multi-stage EPS buffer wrapped with a geotextile EPS (Expanded Poly-Styrene) block connected through the fixing pin toward the valley portion near the top end of the corrugated steel sheet structure, and geotextile toward the slope A multi-stage earth and sand buffer portion wrapped around the soil using a pocket, wherein the geotextile end of each of the EPS buffer portion is located at the bottom of the geotextile of each earth and sand buffer portion is fixed to the corrugated steel sheet and geotextile Provides a used cancer tunnel.

In addition, the present invention preferably provides a corrugated steel sheet and a rock tunnel using the geotextile, characterized in that to prevent the external damage by using three layers of geotextiles respectively.

In addition, the present invention preferably provides a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the buffer material further comprises an upper fill portion on top of the EPS buffer and the earth and sand buffer.

And the present invention is preferably the upper fill portion is installed geotextile, and after filling the geotextile, the geotextile is closed to form a layer and characterized in that the geotextile is configured to exert a tensile force by the loading load It provides a rock tunnel using corrugated steel sheet and geotextile.

In another aspect, the present invention preferably provides a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the upper fill portion comprises a fill material.

And the present invention preferably the buffer material is a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the groundwater flowing from the slope is formed to guide the lower drain by forming a drainage layer by the coarse aggregate up to the design height on the slope side To provide.

In addition, the present invention preferably provides a corrugated steel sheet and a rock tunnel using a geotextile, characterized in that the reinforcement earth retaining wall is installed in the buffer material portion surrounding the inlet, outlet portion of the corrugated steel sheet structure to prevent the loss of the fill material.

In order to achieve the above object, the present invention, in the construction method of the rock tunnel installed on the road to prevent rockfall,

Installing a corrugated steel plate structure on the roadway;

After installation of the corrugated steel sheet structure, performing concrete backfill between the slope and the corrugated steel sheet structure;

Constructing the foundation fill part to the top of the corrugated steel sheet structure on the upper part of the concrete backfill;

Constructing a cushioning material from the upper end of the foundation fill part and the corrugated steel sheet structure to a design height to an upper side; And

Determining whether the cushioning material is completed up to a design height; and the cushioning material forms a downwardly inclined surface that is gradually lowered from a valley portion to a valley portion as its height increases to a design height and gradually decreases from a valley portion. It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile.

And the present invention preferably provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the step of installing the corrugated steel sheet structure includes the foundation excavation and foundation concrete on the road. .

In addition, the present invention preferably is the step of backfilling the concrete to backfill with concrete up to a width of 3 m between the slope and the corrugated steel sheet structure, to install a drain on the slope side to exclude groundwater flowing from the slope It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile characterized in that.

And the present invention preferably constructing the foundation fill portion to the top of the corrugated steel sheet structure is to install the geotextile and then fill the geotextile to close the geotextiles in a pocket-type geotextile can exert a tensile force by the load load It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile, characterized in that to be laminated step by step so that.

In another aspect, the present invention preferably comprises the step of constructing the foundation fill portion to the top of the corrugated steel sheet structure to form a drainage layer by the coarse aggregate on the slope side to guide the groundwater flowing from the slope to the lower drain hole Provides a method of constructing a rock tunnel using corrugated steel sheet and geotextile.

And preferably the step of constructing the cushioning material to the design height to the upper side is to construct a multi-stage EPS buffer wrapped around the EPS block with a geotextile connected through the fixing pin toward the valley portion near the top of the corrugated steel sheet structure, Constructing a multi-stage earth and sand buffer portion wrapped around the soil using the geotextile toward the slope, the geotextile end of each of the EPS buffer portion is constructed to be fixed to be located at the bottom of the geotextile of each soil sand buffer portion. It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile.

In another aspect, the present invention preferably provides a method for constructing a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the EPS buffer portion surrounds the EPS block using three layers of geotextiles.

And the present invention preferably includes the step of constructing the buffer material to the upper side to the design height further comprises the step of constructing the upper fill portion on top of the EPS buffer portion and the earth and sand buffer portion, the upper fill portion is laid geotextile and After performing the filling on the top of the corrugated steel tunnel and geotextile, characterized in that it comprises a step of laminating the geotextiles in a pocket form and laminating in multiple stages so that the geotextiles exert a tensile force by the load of the loading. Provide construction method.

In another aspect, the present invention preferably the step of constructing the cushioning material to the upper side to the design height, the construction of the corrugated steel sheet using the corrugated steel sheet and geotextile, characterized in that it further comprises the step of constructing the fill material on top of the upper fill portion. Provide a method.

And the present invention preferably comprises the step of constructing the buffer material to the upper side to the design height further comprises the step of forming a drainage layer by the coarse aggregate on the slope side to the ground water flowing from the slope to the lower drainage It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile characterized in that.

In addition, the present invention preferably comprises the step of constructing the cushioning material to the upper side to the design height further comprises the step of installing a reinforcement soil retaining wall in the buffer material surrounding the inlet, outlet portion of the corrugated steel sheet structure to prevent the loss of the fill material. It provides a method of constructing a rock tunnel using a corrugated steel sheet and geotextile.

According to the present invention, after installing the corrugated steel sheet structure made of ready-made products without performing the step-by-step formwork, reinforcement, concrete placing, etc., which is a conventional construction order, compared to the conventional method by installing a cushioning material using geotextile Rapid construction is possible, and the effect which can ensure the outstanding quality is acquired.

In addition, according to the present invention, geotextiles, which are a kind of geotextile, can be manufactured in a factory and construct arch-shaped rock tunnels that are structurally more stable than concrete box-shaped structures with lighter corrugated steel plates, and minimize loads and side pressures. By applying the pocket filling method using the method, it is possible to increase the efficiency and economic efficiency through reducing the construction cost, shortening the construction period, and securing the road space compared to the conventional method.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the rock tunnel 1 using the corrugated steel sheet and the geotextile according to the present invention is located on a mountain road 180 on which a slope 100 and a valley part 150 are located to prevent rockfall. Is installed.

The corrugated steel sheet 1 using the corrugated steel sheet and the geotextile of the present invention includes a corrugated steel sheet structure 10 installed on the road 180, and the corrugated steel sheet structure 10 has a base concrete portion 12 at both lower ends thereof. ) Is stably built on the road 180.

The corrugated steel sheet structure 10 may also include a window 16 on its side if necessary. Here, the corrugated steel sheet structure 10 used for constructing the rock formation tunnel 1 of the present invention means corrugated steel pipe or corrugated steel plate that can be prefabricated in a factory. The structure is made of an arcuate cross section which is advantageous in terms of structural strength. Such a corrugated steel sheet structure 10 can significantly reduce the thickness of the conventional concrete structure to ensure a large free space of the road 180, and can form a much more stable cross-section. In addition, if the structure is manufactured from a ready-made product, such as corrugated steel sheet, it is possible to assemble and transport the finished product from the factory to the field, so there are many economic advantages such as shortening of air.

The corrugated steel sheet structure 10 is a tunnel-shaped cross-section means a conventional structure made in advance in the manufacturing site, it is noted that may be used alternatively to the term "corrugated steel pipe structure".

And the cancerous tunnel 1 of the present invention includes a concrete backfill 20 that is filled between the corrugated steel sheet structure 10 and the road slope 100. When the concrete back fill 20 is completed assembling the corrugated steel sheet structure 10, it is carried out by pouring the concrete to the width of 3 m between the slope 100 and the corrugated steel sheet structure (10). At this time, the drain surface 22 is installed on the top surface of the concrete back fill 20 so as to exclude groundwater flowing from the slope 100.

In addition, the foundation fill portion 30 is formed on the top of the concrete back fill 20, which is formed to the top of the corrugated steel sheet structure (10). The foundation fill section 30 installs the geotextile 32 and fills the fillet 35 with a thickness of approximately 1 m thereon, and then closes the geotextiles in a pocket form to form a layer and the geotextiles 32 by the loading load. ) Is configured to exert a tensile force.

The foundation fill portion 30 is produced in the form of wrapping the soil using a geotextile (32) geotextile (32), the separation material, reinforcement, filter material function has been proven to load the load and lateral earth pressure on the corrugated steel sheet structure (10) There is an advantage to light weight by dispersing.

And to the slope 100 side, that is, between the slope 100 and the base fill portion 30 to form a drainage layer 37 by coarse aggregate, the groundwater flowing from the slope 100 to the lower drain 22 To be induced.

In addition, the present invention includes a buffer member 40 is formed from the upper end of the foundation fill portion 30 and the corrugated steel sheet structure 10 to the design height (H). As shown in FIG. 2, the cushioning material 40 has a multi-stage Expanded Poly-Styrene (EPS) buffer 45 formed toward the valley portion 150 near the top end of the corrugated steel sheet structure 10, and the slope ( Towards the 100 is provided with a multi-stage earth and sand buffer portion 50, each of the EPS buffer portion 45 is made of a structure wrapped around the EPS block 47, the geotextile 49 connected through the fixing pin 42 and Each of the earth and sand buffers 50 has a structure in which the earth and sand 54 is pocketed using the geotextile 52.

In addition, each of the EPS buffer portion 45 has a structure in which the geotextile end 49a is located at the bottom of the geotextile 52 of the respective earth and sand buffer portion 50, as shown in detail in FIG. to be. In such a case, the earth and sand buffer portion 50 and the EPS buffer portion 45 are arranged side by side, respectively, the earth and sand buffer portion 50 is a geotextile 52 in a similar form to the basic fill portion (30) Surrounding the soil sand 54, the EPS buffer 45 is wrapped around the EPS block 47 using a three-layer geotextile 49, respectively, and then the geotextile bottom of each soil-absorbing buffer 50 ( 52, its end 49a is inserted and supported. In this way, the EPS buffer portion 45 is a structure that can prevent damage from external impact by using a three-layer geotextile (49).

In addition, the buffer material 40 further includes an upper fill portion 60 on top of the EPS buffer portion 45 and the earth and sand buffer portion 50 stacked in multiple stages. The upper fill portion 60 has a geotextile 62 similar to the basic fill portion 30, and after filling the fill 64 thereon, the geotextile 62 is closed by a pocket to form a layer. Geotextile 62 is configured to exert a tensile force by the load load, it is located on the upper portion of the EPS buffer 45 and the soil buffer (50).

In addition, in the present invention, the upper fill portion 60 may include a fill material 70 thereon, which is installed in the form of inclined slope between the slope 100 and the upper fill portion 60.

As such, the buffer material 40 formed on the basic fill part 30 includes the EPS buffer part 45 stacked in multiple stages, the earth and sand buffer part 50, and the upper fill part 60 and the pile material stacked in the upper part. The stacked form of the 70 is inclined from the slope 100 toward the valley portion 150 side. That is, as shown in Figure 1, the buffer member 40, as the height is increased from the base fill portion 30 to the upper side gradually decreases its height from the valley portion 150, the valley portion 150 on the slope 100 It is a structure that forms a downward inclined surface lowered toward.

Such a buffer material 40 is produced by wrapping the soil and EPS blocks using a geotextile proven in the separation material, reinforcing material, filter material on the side and top of the corrugated steel sheet structure 10 and multi-stacked, respectively. Dispersion of the load and lateral earth pressure on the corrugated steel sheet structure 10 has the advantage of lightening the structure. In addition, the conventional reinforcement method and wall surface treatment method, etc. which are constructed on the slope portion during the construction of the rock tunnel is obtained an advantage that is omitted due to the earth fill method using the geotextile.

Meanwhile, in the above, the cushioning material 40 forms a drainage layer 80 by the coarse aggregate up to the design height H of the slope 100, which is the drainage layer 37 by the coarse aggregate of the foundation fill part 30. Is formed successively in the upper portion, is configured to guide the groundwater flowing from the slope 100 to the lower drain 22. In addition, the buffer member 40 is configured to prevent the loss of the fill material before and after the inlet and outlet of the corrugated steel sheet structure 10 by installing a reinforcing soil retaining wall (not shown) around the inlet, outlet portion of the corrugated steel sheet structure (10).

Hereinafter, the method for constructing a rock tunnel using a corrugated steel sheet and a geotextile according to the present invention will be described in more detail step by step.

In the method 200 for constructing a rock tunnel using a corrugated steel sheet and a geotextile according to the present invention, as shown in FIG. 4, a step 210 of first installing a corrugated steel sheet structure 10 on a road 180 is performed. Such step 210 is provided on both sides of the road 180 to form the foundation by laying the foundation trench and foundation concrete part 12, and to assemble the corrugated steel sheet structure 10 thereon to form a corrugated steel sheet structure (10) So that both ends of the support are supported on the foundation concrete part 12.

Next, after installation of the corrugated steel sheet structure 10 as described above, a step 220 of performing the concrete backfill 20 between the slope 100 and the corrugated steel sheet structure 10 is performed. The step 220 of performing the concrete backfill 20 is performed to backfill 20 with concrete up to a width of 3 m between the slope 100 and the corrugated steel plate structure 10, and on the slope 100 side. By installing the drain 22, the groundwater flowing from the slope 100 is excluded to the outside.

Next, a step 230 of constructing the foundation fill part 30 to the upper end of the corrugated steel sheet structure 10 is performed on the upper portion of the concrete back fill 20. This step 230 is to install the geotextile 32 on the top of the concrete back fill 20 and fill the embankment 35 thereon, and then close the geotextile 32 in a pocket-type geotechnical load The style 32 is enclosed to exert a tensile force, which is then stacked in sequence. In this case, the fill 35 contained in the interior of the geotextile 32 has a height of approximately 1 m.

And thus, in the process of constructing the basic fill portion 30 to the upper end of the corrugated steel sheet structure 10 to form a drainage layer 37 by the coarse aggregate on the side of the slope 100, such coarse aggregate is slope ( Underground water flowing from the 100 to pass to the bottom to be directed to the drain 22 on the concrete backfill 20.

When the fill height of the foundation fill portion 30 is constructed to the upper end of the corrugated steel sheet structure 10 and the flat surface appears, the cushioning material 40 is formed from the upper end of the basic fill portion 30 and the corrugated steel sheet structure 10. ) Is constructed to the design side (H) to the upper side 240 is made. In this step 240, the cushioning material 40 wraps and wraps the EPS block 47, which is connected to the valley part 150 by the fixing pin 42, near the top of the corrugated steel sheet structure structure 10, with the geotextile 49. The end 49a of the geotextile is positioned at the bottom of the geotextile 52 which encloses the soil sand 54 in a pocket. That is, as shown in Figure 2, the multi-stage EPS wrapped around the EPS block 47 with a geotextile 49 connected through the fixing pin 42 toward the valley portion 150 near the top end of the corrugated steel sheet structure 10 Constructing the buffer 45, and parallel to this is to construct a multi-stage soil buffer 50 wrapped around the soil surface 54 using the geotextile 52 toward the slope (100).

At this time, the geotextile end 49a of each of the EPS buffers 45 is located at the bottom of the geotextiles 52 of the respective soil buffers 50, and as shown in FIG. It is constructed to be fixed by the load of).

Here, the EPS buffer portion 45 is to surround the EPS block 47 by using three layers of geotextiles 49, respectively, thereby preventing damage from external impact.

In addition, in the step 240 of constructing the buffer material 40 to the design height (H) to the upper side as described above, the present invention is the upper fill portion 60 on the upper portion of the EPS buffer portion 45 and the earth and sand buffer portion 50. It further includes the process of construction. That is, the geotextile 62 is installed on the upper portion of the EPS buffer portion 45 and the earth and sand buffer portion 50, and the fill is applied thereon. Then, the geotextile 62 is pocketed to close the layer. In this case, the geotextile 62 is laminated in multiple stages so as to exert a tensile force by the load. The upper fill portion 60 is constructed in a manner similar to the basic fill portion 30, and the EPS buffer portion 45 is not disposed in the upper fill portion 60.

And the upper portion of the top fill portion 60 further includes a process for constructing the fill material (70). The landfill material 70 is laid in the form of connecting the slope 100 and the upper fill portion 60 inclined.

In addition, the present invention forms the drainage layer 80 by the coarse aggregate up to the design height (H) to the slope 100 in the step 240 in the construction step 240 to the design height (H) to the upper side as described above So that the ground water flowing from the slope 100 is led to the lower drain 22. As such, the coarse aggregate to be constructed in the construction process of the cushioning material 40 is successively constructed on the upper side of the coarse aggregate to be constructed in the base fill part 30 of the lower side thereof, and thus the groundwater flowing from the slope 100 accordingly. The concrete backfill 20 is to be guided smoothly to the drain 22 of the upper portion.

As described above, when the cushioning material 40 is constructed, a step 250 of determining whether the shock absorbing material 40 is completed up to the design height H is performed and reaching the slope 100 of the desired design height H. The buffer member 40 is continuously constructed until such a buffer member 40 is gradually increased in height toward the upper side of the foundation fill part 30 and the corrugated steel sheet structure 10, and the height thereof decreases from the valley part 150. It is constructed in a structure that forms a downward inclined surface that is lowered from the slope 100 toward the valley portion 150.

When the cushioning material 40 is constructed to the design height H, the reinforcement soil retaining wall (not shown) is installed at the buffer member 40 around the inlet and the outlet part of the corrugated steel sheet structure 10. It is to prevent the loss of the landfill material 70 is built for 40).

The corrugated steel sheet 1 using the corrugated steel sheet and the geotextile according to the present invention constructed as described above may use a ready-made corrugated steel pipe instead of the corrugated steel sheet structure 10, which has almost the same shape as the corrugated steel sheet, When formed in an arcuate structure, there is an effect of dispersing the floor load. Instead, the corrugated steel pipe is relatively thinner than the corrugated steel sheet, so that the resistance to load is weak.However, in order to compensate for the disadvantage, the present invention applies a landfill method using geotextile, which is a kind of geotextile, to reduce the load and lateral earth pressure. Therefore, the influence can be minimized.

As described above, the present invention does not perform step-by-step formwork, reinforcement, concrete pouring, etc., which is a conventional construction procedure, but installs the corrugated steel sheet structure 10 made of ready-made products, and then uses the geotextile to cushion the material 40. By installing the fast construction is possible compared to the conventional method, it is possible to secure a superior structurally stable quality.

In addition, the present invention can be manufactured in the factory, the construction of the arch-shaped rock tunnel to be structurally stable than the concrete box-shaped structure with light weight corrugated steel plate, using geotextile which is a kind of geotextile to minimize the load and side pressure By applying the pocket fill method, efficiency and economics can be greatly improved by reducing construction cost, shortening construction period, and securing road space compared to the conventional method.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art will be able to variously modify or change the embodiments of the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Nevertheless, it will be apparent that all such modifications or design modifications to such simple embodiments will clearly fall within the scope of the present invention.

1 is a front view of the construction of a rock tunnel using a corrugated steel sheet and geotextile according to the present invention;

Figure 2 is a partially cut perspective view showing the construction of a rock tunnel using a corrugated steel sheet and geotextile in accordance with the present invention;

3 is a cross-sectional view showing the fill layer composition using the geotextile provided in the corrugated steel tunnel using the corrugated steel sheet and geotextile according to the present invention;

Figure 4 is a flow chart showing a step-by-step method of constructing a rock tunnel using a corrugated steel sheet and geotextile according to the present invention.

Description of the Related Art

1 ..... Cancerous tunnel using corrugated steel sheet and geotextile according to the present invention

10 .... corrugated steel plate structure 12 .... foundation concrete part

20 .... Concrete backfill 22 .... Drains

30 .... Foundation Fill 32.49,52,62 .... Geotextile

35,64 .... Fill 37,80 .... Drainage layer

40 .... buffer 42 .... retaining pin

45 .... EPS buffer 47 .... EPS block

50 ... sediment buffer 54 .... sediment

60 .... upper fill part 70 .... fill material

100 ... if you buy 150 ... Valley of wealth

180 ... mountain road

200. Construction method of rock cancer tunnel using corrugated steel plate and geotextile

210. Steps to install corrugated steel plate structures on the road

220 ... Steps to perform concrete backfill

230 ... Construction of foundation fill to top of corrugated steel structure

240. Step of installing the cushioning material to the upper side to the design height

Determining whether 250 ... cushioning material is completed to design height

H ..... design height

Claims (23)

Corrugated steel plate structure installed on the roadway; A concrete backfill filled between the corrugated steel plate structure and the road slope; A foundation fill portion formed from an upper portion of the concrete backfill to a top of a corrugated steel sheet structure; And And a cushioning material formed from the upper end of the foundation fill portion and the corrugated steel sheet structure to an upper design level, wherein the cushioning material is lowered from the slope to the valley part as its height is gradually increased from the valley part to its design height. Form a slope, The foundation fill portion is laid geo geotextile and subjected to the fill on it, the geotextiles are closed to form a layer and geotextile is configured to exert the tensile force by the load load, The buffer material is a multi-stage EPS (Expanded Poly-Styrene) buffer wrapped around the EPS (Expanded Poly-Styrene) block through the fixing pin toward the valley portion near the top of the corrugated steel sheet structure, and the geotextile to the slope And a multi-stage earth and sand buffer portion wrapped around the soil, wherein the geotextile end of each of the expanded poly-styrene buffers is located at the bottom of the geotextile of each earth and sand buffer portion. Rock tunnel using steel plate and geotextile. The corrugated steel sheet using a corrugated steel sheet and geotextile according to claim 1, wherein the corrugated steel sheet structure is formed at the lower end of both sides thereof. According to claim 1, The concrete backfill is a rock tunnel using a corrugated steel sheet and geotextile, characterized in that to install the drain on the slope side to exclude the groundwater flowing from the slope. delete According to claim 1, wherein the foundation fill section is a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the groundwater flowing from the slope is formed to form a drainage layer by the rough aggregate on the slope side to the lower drain. delete The corrugated steel sheet using a corrugated steel sheet and geotextile according to claim 1, wherein the EPS (Expanded Poly-Styrene) buffer unit is to prevent external damage by using three layers of geotextiles, respectively. According to claim 1, wherein the cushioning material is a corrugated steel sheet and geotextile using a rock-like steel sheet and geotextile, characterized in that it further comprises an upper fill portion on top of the EPS (Expanded Poly-Styrene) buffer portion and the earth and sand buffer. The waveform of claim 8, wherein the upper fill portion is formed by laying the geotextile and carrying out the fill on the geotextile, and closing the geotextile in a pocket to form a layer, and the geotextile is configured to exert the tensile force by the loading load. Rock tunnel using steel plate and geotextile. 10. The rock tunnel according to claim 9, wherein the upper fill portion comprises a fill material. The rock tunnel according to claim 1, wherein the buffer member is configured to form a drainage layer by the coarse aggregate up to the design height on the slope side so that the groundwater flowing from the slope is guided to the lower drain. The corrugated steel sheet using a corrugated steel sheet and geotextile of claim 1, wherein a reinforcing soil retaining wall is installed at a portion around the inlet and the outlet of the corrugated steel sheet structure to prevent loss of the fill material. Installing a corrugated steel plate structure on the roadway; After installation of the corrugated steel sheet structure, performing concrete backfill between the slope and the corrugated steel sheet structure; Constructing the foundation fill part to the top of the corrugated steel sheet structure on the upper part of the concrete backfill; Constructing a cushioning material from the upper end of the foundation fill part and the corrugated steel sheet structure to a design height to an upper side; And And determining whether the cushioning material is completed up to a design height; and the cushioning material forms a downwardly inclined surface that decreases from a slope toward a valley part as its height is gradually increased from a valley part as its height is increased to a design height, The step of constructing the cushioning material to the upper side to the design height is a multistage EPS (Expanded Poly-Styrene) wrapped with a geotextile of an expanded poly-styrene (EPS) buffer block connected through a fixing pin toward the valley part near the top of the corrugated steel sheet structure. ) Constructs a buffer section, and constructs a multi-stage earth cushion that wraps the soil in a pocket using the geotextile toward the slope, and a geotextile end of each of the expanded poly-styrene buffers A method of constructing a rock tunnel using a corrugated steel sheet and a geotextile, characterized in that the construction is located at the bottom of the geotextile of the earth and sand buffer portion. The method of claim 13, wherein the step of installing the corrugated steel sheet structure comprises the construction of foundation trench and foundation concrete on the road. 15. The method of claim 13, wherein the step of backfilling the concrete is to backfill the concrete to a width of 3 m between the slope and the corrugated steel sheet structure, and to install a drain on the slope to exclude groundwater from the slope. Method of constructing rock tunnel using corrugated steel sheet and geotextile 15. The method of claim 13, wherein the step of constructing the basic fill portion to the top of the corrugated steel sheet structure is to install the geotextile and then fill the geotextile to close the geotextile in a pocket type so that the geotextile can exert a tensile force by the load load Construction method of a rock tunnel using a corrugated steel sheet and geotextile, characterized in that the step of lamination. 17. The method of claim 16, wherein the step of constructing the basic fill portion to the top of the corrugated steel sheet structure is characterized in that it comprises a drainage layer formed by the coarse aggregate on the slope side to guide the groundwater flowing from the slope to the lower drainage Construction method of rock cancer tunnel using steel plate and geotextile. delete 15. The cancer tunnel according to claim 13, wherein the expanded poly-styrene (EPS) buffer unit surrounds the expanded poly-styrene (EPS) buffer block using three layers of geotextiles, respectively. Construction method. 15. The method of claim 13, wherein the construction of the cushioning material to the upper side further comprises a step of constructing an upper fill portion on top of the expanded poly-styrene (EPS) buffer and the earth and sand buffer portion, wherein the upper fill portion is geotechnical. Corrugated steel sheet and geotextile, comprising laying a style and filling it on top of it, forming a layer by closing the geotextiles in a pocket, and laminating the geotextiles in multiple stages so that the geotextiles exert a tensile force by the load. Construction method of the rock cancer tunnel. 21. The method of claim 20, wherein the step of constructing the cushioning material toward the design height to the upper side further comprises the step of constructing the fill material on the upper portion of the upper fill portion. The method of claim 13, wherein the step of constructing the cushioning material to the upper side to the design height further comprises the step of forming a drainage layer by the coarse aggregate up to the design height on the slope side to guide the groundwater flowing from the slope to the lower drain Method of constructing a rock tunnel using a corrugated steel sheet and geotextile, characterized in that. The method of claim 13, wherein the step of constructing the buffer material to the upper side to the design height further comprises the step of preventing the loss of the fill material by installing a reinforced earth retaining wall in the buffer material portion around the inlet and outlet portion of the corrugated steel sheet structure Construction method of rock tunnel using corrugated steel sheet and geotextile.

Images