KR101827943B1 - Submerged drainage type oil storage tank using T-bar and its construction method - Google Patents

Abstract

The present invention relates to an underground drainage type oil storage tank using a T-bar and a construction method thereof. According to the present invention, the oil storage tank using a T-bar made of a material including a steel plate and concrete comprises: a tank body part formed with sidewalls, a bottom surface, and a ceiling, which are made of a steel plate, and including an inner sump formed in a center of the bottom surface as a circular shape and an inner drain pipe discharging fluid inside the inner sump to the outside; a concrete outer wall part formed outside the sidewall of the tank body part and a concrete upper surface part formed on the ceiling of the tank body part; and a base concrete part disposed in a lower part of the bottom surface of the tank body part. The inner sump includes: a flat U-shaped channel forming a boundary; a bottom plate coupled to a lower flange of the flat U-shaped channel; and a drain pipe to vertically penetrate upper and lower flanges of the flat U-shaped channel and the bottom plate. The base concrete part includes: an outer sump formed in a lower part of the inner sump; the T-bar coupled to an outer end part of the upper flange of the flat U-shaped channel to be radially disposed towards the sidewall; a flat U-shaped drain pipe to surround the T-bar; and an outer drain pipe to discharge fluid inside the outer sump. The bottom surface of the tank body part includes a steel plate coupled to an inner end part of the upper flange of the flat U-shaped channel while being coupled adjacent to each other at an upper part of the flange of the T-bar of the base concrete part. Accordingly, groundwater or the like are removed from circumference of the tank body part, thereby providing effects of preventing the tank body part from being damaged and preventing soil contamination by leakage of oil.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submerged drainage type oil storage tank using a T-

The present invention relates to an underground drainage type oil storage tank using a T-shaped bar and a method of manufacturing the same. More particularly, the present invention relates to a steel oil storage tank having a steel storage tank embedded in a ground by rainwater or groundwater, And a method of constructing the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an underground buried drain oil storage tank using a T-

The oil storage tank is a structure having a closed space for storing a large amount of oil, and is often installed underground for safe management. Oil storage tanks installed in the basement are usually constructed by inner walls of oil storage tanks being formed of steel plates to maintain tightness and concrete outer walls are provided on the outer surface of the steel plates so that water pressure by external earth pressure or rainwater or ground water applied to the steel plates .

Since the outer wall of the concrete is not a watertight structure, water such as ground water penetrates between the steel plate and the outer wall of the concrete over time.

However, since the oil storage tank is continuously brought in or out, the flow rate is continuously changed, so that the height of the oil in the tank fluctuates repeatedly. The pressure applied to the inside of the steel plate due to fluctuations of the oil level and the pressure applied to the outside of the steel plate due to the ground water impregnated between the steel plate and the concrete outer wall portion becomes unbalanced. Repeated loads due to such imbalanced pressure persist in the steel sheet, and the steel sheet is damaged and corroded by fatigue due to the continuous repeated load. Also, the steel sheet is damaged and corroded by the volume change of repeated freezing and thawing of underground water permeated between the steel plate and the concrete outer wall portion.

One of the conventional techniques for solving the problem of damaging the oil storage tank by ground water is disclosed in Japanese Patent Application Laid-Open No. 10-2013-0043044 (Patent Document 1). Fig. 11 is an explanatory diagram relating to Patent Document 1. The corrosion inhibitor 300 is prevented from being corroded by charging the corrosion inhibitor 300 into the gap between the outer surface of the tank body 110 and the pedestal 220 on which the tank body 110 is placed. However, the corrosion inhibitor 300 exerts the effect of preventing the rust generation by moisture, and can not prevent the storage tank from being damaged due to an imbalanced repetitive load of the internal and external pressures of the storage tank or freezing of groundwater.

12, the storage tank is divided into an inner tank 70, an outer tank 90, and an inner tank (not shown) 70 and the outer tank 90 to prevent the storage tank from being damaged by freezing the ground water or the like by filling the buffer 80 with the heat insulating material. However, it is impossible to prevent damage to the storage tank due to uneven load of pressure inside and outside of the storage tank.

On the other hand, in the case of a conventional oil storage tank having underground water storage tank damaged by ground water or the like, a conventional oil storage tank repair method (patent document 3) of Registration No. 10-0425950 The strips 70 and 80 are welded to the inner surface of the oil storage tank and then welded. FIG. 13 is an explanatory diagram of the above-described Patent Document 3. FIG. However, according to this method, a new endothelium can be formed in the oil storage tank, and damage to the steel sheet due to repeated loads such as ground water impregnated between the steel plate of the oil storage tank and the concrete outer wall portion can not be solved.

KR 10-2013-0043044 A KR 20-0283721 Y1 KR 10-0425950 B1

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the problems of the prior art as described above, and it is an object of the present invention to provide a water storage tank, which is provided between a steel plate on a side wall of a oil storage tank and a concrete outer wall, An underground drainage type oil storage tank using a T-shaped bar and a construction method thereof.

According to a preferred embodiment of the present invention for solving the above problems, an underground buried drain type oil storage tank, which is buried underground and uses a T-shaped bar made of a material including a steel plate and concrete, And a tank main body having a ceiling formed of a steel plate and having an inner collecting part formed in a circular shape at the center of the bottom surface and an inner drain pipe discharging the fluid in the inner collecting part to the outside; A concrete upper wall portion formed on the ceiling of the tank main body portion, the concrete outer wall portion being formed outside the side wall of the tank main body portion; A foundation concrete portion disposed under the bottom surface of the tank main body portion; And a drain pipe passing through the upper and lower flanges of the U-shaped channel and the bottom plate vertically, wherein the U-shaped channel includes a U-shaped channel forming a rim, a bottom plate joined to a lower flange of the U- A U-shaped drainage pipe surrounding the T-shaped bar; a U-shaped drainage pipe surrounding the T-shaped bar; An external drain pipe for discharging fluid in the external collection; Wherein the U-shaped drain pipe is disposed at a portion where the T-shaped bar is joined to the outer end of the upper flange of the C-shaped channel, and both ends of the U-shaped drain pipe are exposed on the upper surface of the foundation concrete portion; And a steel plate joined to an inner end of the upper flange of the C-shaped channel while being joined to the bottom surface of the tank main body portion adjacent to each other at an upper portion of the flange of the T-shaped bar of the foundation concrete portion. A buried drainage oil storage tank is provided.

According to an embodiment of the present invention, a ring-shaped T-shaped bar crossing the end of the radially arranged T-shaped bar is provided, a second T-shaped bar radially disposed in the side wall direction is joined to the ring- There is provided an underground drainage type oil storage tank using a T-shaped bar, characterized by further comprising a U-shaped drain pipe surrounding the ring-shaped T-shaped bar.

According to another embodiment of the present invention, the bottom surface of the foundation concrete part 200 and the tank body part may be formed of the above- Wherein the tank is formed with a downward slope toward the outside of the tank.

According to another embodiment of the present invention, the inner drain pipe is formed so that one end communicates with the inner collector and is inclined downward toward the other end, and the outer drain pipe is formed such that one end communicates with the outer collector and is inclined downward toward the other end Wherein the T-shaped bar is disposed in the bottom of the tank.

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According to another embodiment of the present invention, an underground drainage type oil storage tank using a T-shaped bar is provided, wherein the inner collecting is a rectangular shape.

According to another embodiment of the present invention, there is provided an underground drainage type oil storage tank using a T-shaped bar, wherein a reinforcing material is installed between the external collecting and the internal collecting.

According to another embodiment of the present invention, an underground drainage type oil storage tank using a T-shaped bar is provided, wherein an oil flow sensor is provided at the other end of the external drain pipe.

According to another embodiment of the present invention, an underground drainage type oil storage tank using a T-shaped bar is provided, wherein a water tank is installed at the other end of the external drain pipe.

According to another aspect of the present invention, there is provided a method for manufacturing a fluid filter, comprising the steps of: a second external collecting pipe connected to the other end of the external water pipe; a water separating tank disposed at a higher position than the second external collecting pipe; Wherein the tank further comprises a pump for transferring the water from the tank to the water separation tank.

According to a preferred embodiment of the present invention, there is provided a method of constructing an underground drainage type oil storage tank embedded in an underground and using a T-shaped bar made of steel and concrete, comprising the steps of: a) ; b) An outer collecting wall is installed in the space of the foundation concrete block, and the inner and outer drain pipes are connected to the outer collecting wall and inner collecting wall, respectively, and the other end is located outside the base concrete wall. A bottom plate joined to a lower flange of the C-shaped channel, and a drain pipe penetrating the upper and lower flanges of the C-shaped channel and the bottom plate vertically; c) disposing a T-shaped bar that is joined to an outer end of an upper flange of the C-shaped channel of the inner collecting corrugation in a radial direction in a sidewall direction and a U-shaped drain pipe surrounding the T-shaped bar; d) forming a foundation concrete by pouring concrete into the foundation concrete part so that the upper end of the flange of the T-shaped bar and the upper end of both ends of the U-shaped drain pipe are exposed on the upper surface of the foundation concrete part; e) a tank body portion having a side wall, a bottom surface, and a ceiling plate made of steel on the upper portion of the foundation concrete, wherein the steel plate on the bottom surface is joined to the upper end portion of the upper flange of the T- ; f) forming a concrete outer wall portion outside the side wall of the tank main body portion and forming a concrete upper surface portion on the ceiling of the tank main body portion; And g) stacking the concrete on the outer wall of the concrete and on the outer side of the upper surface of the concrete. The method of constructing an underground drainage type oil storage tank using the T-shaped bar is provided.

According to another embodiment of the present invention, there is provided a ring-shaped T-shaped bar crossing the end of the T-shaped bar radially disposed in step c), and the ring-shaped T- A method of constructing an underground drainage type oil storage tank using a T-shaped bar, characterized by further comprising the step of installing a U-shaped drain pipe to which a T-shaped bar is joined and which surrounds the ring-shaped T-shaped bar.

An underground buried drain type oil storage tank using a T-shaped bar according to the present invention is characterized in that the tank is connected to the tank through drainage means consisting of inner and outer collecting and inner and outer drain pipes, T-shaped bar, drain pipe, U- Shaped water channel between the side wall of the main body portion and the concrete outer wall portion flows down between the bottom surface of the tank main body portion of the drain means and the foundation concrete portion 200, It is possible to quickly drain the ground water or the like that is pumped up from the upper part of the water tank by the external collecting water through the drain pipe formed above and below. Therefore, the drainage means can lower the groundwater level formed on the side wall and the bottom surface of the tank body, and can relieve the unbalanced pressure acting on the inside and outside of the side wall and the bottom surface of the tank body portion due to the fluctuation of the oil stored in the oil storage tank It is possible to prevent damage and corrosion of the side wall and the bottom surface and consequently to prevent oil from leaking out of the tank main body to prevent contamination of the soil by the oil and to reduce the maintenance cost for the oil storage tank do.

Even when the stored oil flows out due to the damage of the main body of the steel material tank of the oil storage tank, it is possible to surely prevent the soil contamination around the oil storage tank by collecting the oil flowed out together with the ground water etc. with the drainage portion. Collected oil can be reused by separating it from water in a water tank.

The drainage type oil storage tank equipped with the oil sensor can quickly check the outflow of the oil, so that the oil storage tank can be checked and repaired conveniently and quickly.

1 is a sectional view of a drainage type oil storage tank according to the first and second embodiments of the present invention;
FIG. 2 is a plan view of a drainage-type oil storage tank according to the first embodiment (a) and the second embodiment (b)
3 is a plan view showing a bottom surface of a tank main body portion of a drain type oil storage tank according to the first embodiment (a) and the second embodiment (b)
4 is a cross-sectional view of the inner and outer collector of the present invention
5 is a partially enlarged cross-sectional view of the inner and outer collecting cores of the present invention
FIG. 6 is a schematic view showing the groundwater or the like flowing through the drain pipe and the U-type drain pipe according to the present invention;
FIG. 7 is an explanatory diagram for explaining the effect of the ground water or the like on the oil storage tank around the oil storage tank
8 is a cross-sectional view of a drainage type oil storage tank according to a third embodiment of the present invention
9 is a flowchart of a method of constructing a drainage type oil storage tank according to the present invention,
FIG. 10 is a step-by-step explanatory view of a method of constructing the drainage type oil storage tank,
11 to 13 are explanatory views of a conventional oil storage tank

Before describing in detail the preferred embodiments of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and meanings and concepts consistent with the technical idea of the present invention .

The present invention relates to an oil storage tank installed in a basement, in which a T-shaped bar discharging underground water around the steel plate of a oil storage tank is used to prevent damage or corrosion of the oil storage tank due to ground water or rainwater, To a drainage type oil storage tank and a construction method thereof.

1 is a cross-sectional view of a drain type oil storage tank 1 according to the first and second embodiments of the present invention. Figs. 2 and 3 show a drain type oil storage tank 1 according to the first and second embodiments Are shown in a plan view. For reference, the first and second embodiments shown in FIG. 1 are those in which clay is formed around the drainage type oil storage tank 1 so that the oil storage tank is located underground.

An underground drainage type oil storage tank 1 using a T-shaped bar according to the present invention includes a tank body portion 100, a concrete outer wall portion 210, a concrete upper surface portion 220, a foundation concrete portion 200, .

The tank main body 100 includes a bottom surface 120, side walls 130 formed along the bottom surface 120, and a ceiling 140 covering the side walls 130, The bottom surface 120, the side wall 130, and the ceiling 140 can store the oil in an enclosed inner space made of steel.

The concrete outer wall portion 210 is a concrete structure disposed along the outer circumference of the side wall 130 of the tank body portion 100. The concrete outer wall portion 210 is a structure made of a concrete material and has a structure in which water pressure by the earth pressure or ground water is applied to the side wall 130 of the tank body portion 100 And the upper surface portion 220 of the concrete is disposed on the ceiling 140 of the tank body portion 100. The load of the ground surface is applied to the ceiling 140 of the tank body portion 100 To prevent it from being directly applied.

The base concrete part 200 is located under the bottom surface 120 of the tank body part 100 and is made of concrete in the same manner as the concrete outer wall part 210 and is made of a concrete material, So that the load by the tank main body 100 and the oil filled in the tank main body 100 is supported.

As described above, the tank main body 100, the concrete outer wall 210, the concrete upper surface portion 220, and the foundation concrete portion 200 are not significantly different from the conventional oil storage tanks, An inner collector 110 for collecting the water introduced into the tank main body 100 and an inner collector 110 for collecting the water collected in the inner collector 110, And an internal drain pipe 150 for discharging the water to the outside.

7 (a) to 7 (c), the oil storage tank 1 buried in the basement is not a watertight structure of the large cracked outer wall portion 210, and therefore, as time elapses, The groundwater and the like penetrate between the side wall 130 of the body 100 and the concrete outer wall portion 210 and between the bottom surface 120 and the foundation concrete portion 200 to maintain a predetermined groundwater level. However, since the oil is continuously carried in or out of the oil storage tank 1, the flow rate is continuously changed, so that the height of the oil in the tank main body 100 fluctuates repeatedly. The pressure applied to the inside of the side wall 130 and the bottom surface 120 of the tank main body 100 and the pressure applied to the inside of the side wall 130 of the tank main body 100 and the concrete outer wall portion 210 The pressure exerted on the outside of the side wall 130 and the bottom surface 120 of the tank main body 100 by the constant groundwater such as ground water permeated between the bottom surface 120 and the foundation concrete part 200 is unbalanced do. Repeated loads due to such imbalanced pressure are continuously applied to the inside and outside of the side wall 130 of the tank main body 100 and the side wall 130 and the bottom surface 120 of the tank main body 100 are repeatedly applied The steel plate as the side wall 130 and the bottom plate 120 of the tank main body 100 may be damaged and corroded as shown in FIG. 7 (d). Since the ground water or the like permeating between the side wall 130 of the tank main body 100 and the concrete outer wall 210 repeatedly freezes and thaws and changes its volume, the side wall 130 of the tank main body 100, This can damage and corrode.

However, the underground drainage type oil storage tank 1 using the T-shaped bar according to the present invention is provided with drainage means on the outer side of the tank main body 100 to remove the ground water and the like from the vicinity of the tank main body 100 It is possible to prevent the tank body 100 from being damaged or corroded by ground water or the like and consequently to prevent the oil from flowing out from the tank body 100 to prevent contamination of the soil by the oil, The cost can be reduced.

Therefore, it penetrates through the concrete outer wall part 210 and is sandwiched between the side wall 130 of the tank main body part 100 of the steel plate material and the concrete outer wall part 210 and between the bottom surface 120 and the foundation concrete part 200, The drainage means for rapidly draining the groundwater or the like includes inner and outer collectors 110 and 230 and inner and outer drain pipes 150 and 240, a T shape bar 231, a drain pipe 112, a U- 232).

As shown in FIGS. 4 to 6, the inner collector 110 has a U-shaped channel 111 formed by upper and lower flanges 111a and 111b and a web, and the upper and lower flanges 111a and 111b And the bottom plate 113 is welded to the lower surface of the lower flange 111b of the C-shaped channel 111 and the upper and lower flanges 111a, And a drain pipe 112 passing through the bottom plate 113 welded to the lower surface of the lower flange 111b. The inner collector 110 may have various shapes such as a circle, a rectangle, an ellipse, and the like. The upper and lower drain pipes 112 pass between the base concrete part 200 and the bottom surface 120 of the tank main body 100 in the side wall 130 of the tank main body 100 and then pass through the bottom of the inner main body 110 It is possible to drop water directly on the upper part of the U-shaped channel 111 by the external collecting unit 230 and to drain the water quickly.

An outer collector 230 is formed on the bottom of the inner collector 110 and a T-shaped bar 231 is formed on the outer side of the upper flange 111a of the C-shaped channel 111 of the inner collector 110, And a U-shaped drain pipe 232 which surrounds the T-shaped bar 231 is connected to the T-shaped bar 231 and the U-shaped channel 111 by welding, And the upper surface of the flange 231a of the T-shaped bar 231 and both end portions of the U-shaped drain pipe 232 are exposed on the upper surface of the foundation concrete part 200. [ The bottom surface 120 of the tank main body 100 is welded to the inner end of the upper flange 111a of the C-shaped channel 111 by a steel plate and welded to the flange 111a of the T- 231a to the steel plate of the adjacent bottom plate 113 by welding. Therefore, in the space between the C-shaped channel 111 and the base concrete part 200 of the inner collecting wall 110 and the bottom surface 120 of the tank main body 100, groundwater or the like flowing down the side wall 130 is collected And the collected groundwater or the like can be quickly and easily drained through the drain pipe 112. [ The bottom surface 120 of the tank body portion 100 can be easily and quickly welded by welding the steel plate of the bottom surface 120 of the tank body portion 100 adjacent to each other by arranging the steel plate on the flange 231a of the T- . Since the flange 231a of the T-shaped bar 231 made of steel and the bottom surface 120 of the tank body 100 are in close contact with each other to make the water difficult to flow, the U-shaped drain pipe 232, So that ground water or the like accumulated on the right and left sides of the T-shaped bar 231 can be flowed in the direction of the drain pipe 112 to smooth the drainage.

According to the second embodiment of the present invention, a ring-shaped T-shaped bar 233 is provided which traverses the end of the radially arranged T-shaped bar 231 according to the size of the oil storage tank 1, The T-shaped bar 233 is provided with a U-shaped drain pipe 232 to which a second T-shaped bar 234 radially disposed in the side wall direction is joined and which surrounds the ring-shaped T-shaped bar 233, 233, the upper end of each second T-shaped bar 234 flange and both ends of the U-shaped drain pipe 232 are also exposed on the upper surface of the foundation concrete portion 200. Therefore, the U-shaped drain pipe 232 can flow the ground water or the like in the direction of the side wall of the ring-shaped T-shaped bar 233 in the direction of the inner collecting pipe 110 to smooth the drainage.

Accordingly, when the groundwater or the like flowing between the side wall 130 of the tank main body 100 and the concrete outer wall 210 flows down along the side wall 130, Shaped channel 111 of the inner collector 110 through the drainage pipe 112 which is formed between the bottom surface 120 of the inner collector 110 and the bottom surface 120 of the inner collector 110 and the ground concrete pipe 200, The water can be drained quickly by the house collector 230. Therefore, the drainage means can lower the groundwater level formed on the side wall 130 and the bottom surface 120 of the tank main body 100, and can reduce the amount of groundwater generated on the side wall of the tank main body 100 130 and the inner and outer portions of the bottom surface 120 can be eliminated, so that damage and corrosion of the side wall 130 and the bottom surface 120 can be prevented.

It is preferable that the foundation concrete part 200 and the bottom surface 120 of the tank body part 100 are formed to be inclined downward toward the inner and outer collectors 110 and 230.

The ground water or the like that descend through the side wall 130 of the tank body 100 moves naturally in the direction of the inner and outer collectors 110 and 230 along the inclination of the foundation concrete part 200, The groundwater on the bottom surface 120 of the water tank 120 can be more efficiently collected and discharged to the outside.

The inner drain pipe 150 of the drain means is formed so that one end communicates with the inner collector 110 and is inclined downward toward the other end. The outer drain pipe 240 has one end communicating with the outer collecting coil 230, .

Accordingly, it is possible to discharge groundwater collected in the inner and outer collectors 110 and 230 without using a separate facility such as a pump. In particular, groundwater collected in the outer collectors 230 can be discharged immediately, It is possible to prevent groundwater or the like from being caught in the space above the U-shaped channel 111 of the collection tube 110.

It is preferable that a stiffener 300 is installed between the outer collecting cores 230 and the inner collecting cores 110.

Accordingly, the stiffener 300 is installed in the outer collecting tank 230 of the foundation concrete block 200, and the load of the oil storage tank, which is stored in the oil storage tank acting on the bottom plate 113 of the inner collector 110, Thereby reinforcing the strength of the bottom surface 120 of the inner collector 110.

At the other end of the external water pipe 240, a flow sensor 400 may be provided.

Accordingly, the oil detection sensor 400 can detect whether the tank main body 100 is damaged by detecting the presence of oil in the ground water discharged to the external drain pipe 240, The water is passed through the external drain pipe 240 through the foundation concrete part 200 and the external condensate 230 so that the external drain pipe 240 can be connected with the ground water or the like irrespective of which part of the tank body part 100 is leaked. It is possible to sense the oil passing through. The oil sensor 400 provided in the drain type oil storage tank 1 can quickly check the outflow of the oil, so that the oil storage tank can be checked and repaired conveniently and quickly.

The drain means may further include a water separator (500) connected to the other end of the external drain pipe (240).

Accordingly, when the oil flows out from the tank main body 100, the outflowed oil and the ground water flow into the oil separator 500 and are separated from each other by using the specific gravity difference between oil and groundwater in the oil separator 500 . The oil separated from the groundwater or the like in the oil separator 500 can be reused. The water separation tank 500 through which the ground water collected in the inner collecting unit 110 is discharged is formed separately.

8 is a cross-sectional view of a drainage type oil storage tank according to a third embodiment of the present invention. The drainage type oil storage tank 1 according to the third embodiment forms a space in the ground by making a ground surface, and is installed in the space and is located in the basement.

Since the drainage type oil storage tank according to the third embodiment is not significantly different from the drainage type oil storage tank according to the first and second embodiments in addition to the method in which the water separation tank 500 is installed, the drainage type oil storage tank according to the first and second embodiments A detailed description of parts common to the storage tank is omitted.

Unlike the first and second embodiments in which the drainage-type oil storage tank is located under the drainage-type oil storage tank, the groundwater level around the drainage-type oil storage tank according to the third embodiment is higher than the drainage means Can be located higher.

Accordingly, in the drainage type oil storage tank 1 according to the third embodiment, the water separation tank 500 is provided together with the second external collection tank 250 and the pump (not shown).

The second outer collecting pipe 250 is connected to the other end of the outer pipe 240 and collects groundwater discharged through the outer pipe 240 and the outer concrete collecting pipe 230. The lower end of the outer collecting unit 250 is formed at a position lower than the drainage unit, so that the groundwater can be discharged through the outer drain pipe 240 irrespective of the ground water around the oil storage tank.

The water reboiler 500 is located in contact with the ground at a position higher than the second external watercleaning 250 and moves the groundwater or the like in the second external watercleaner 250 located at a lower location to the water / Since the groundwater or the like in the second external collecting water 250 is discharged to the water separating tank 500 at any time by the pump, the second external collecting water 250 maintains a low water level and lowers the groundwater level around the oil storage tank can do.

FIG. 9 is a flowchart of a method of constructing an underground drainage type oil storage tank 1 using a T-shaped bar according to the present invention, and FIG. 10 is an explanatory view showing major steps of the construction method.

A method of constructing an underground drainage type oil storage tank (1) using a T-shaped bar according to the present invention comprises the steps of: a) installing a foundation concrete mold; b) installing the inner and outer collectors 110 and 230 on the foundation concrete block; c) installing a T-shaped bar 231 and a U-shaped drain pipe 232 in the inner collecting part 110; d) a step (M4) of installing a foundation concrete part (200) for pouring concrete into the foundation concrete part (200); e) installing the tank body part 100 in the foundation concrete part 200, step M5; f) installing the concrete outer wall portion 210 and the concrete upper surface portion 220 in the tank main body 100; And g) installing the soil on the concrete outer wall portion 210 and the concrete upper surface portion 220 (M7).

As shown in FIG. 10 (a), a mold installation step M1 of the foundation concrete part 200, an installation step M2 of the inner and outer house correction parts 110 and 230 on the base concrete part formwork M2, In the step of installing the T-shaped bar 231 and the U-shaped drain pipe 232 at the step 110, the foundation concrete part formwork is installed, the external condensate 230 is installed in the foundation concrete part form, The inner and outer drain pipes 150 and 240 communicating with the inner collecting wall 230 and the inner collecting wall 110 and the other end located outside the base concrete formwork are installed and the U- Shaped channel 111 and the upper and lower flanges 111a and 111b of the C-shaped channel 111 and the bottom plate 113 through the upper and lower flanges 111b of the U- An inner collector 110 having a pipe 112 formed therein is installed and is joined to the outer end of the upper flange 111a of the C-shaped channel 111 of the inner collector 110 A T-shaped bar 231 is radially disposed in a sidewall direction, and a U-shaped drain pipe 232 surrounding the T-shaped bar 231 is installed.

Shaped bar 231 radially disposed in accordance with the size of the oil storage tank 1 in the step of installing the T-shaped bar 231 and the U-shaped drain pipe 232 at the inner collecting part 110 Shaped T-shaped bar 233 is provided on the ring-shaped T-shaped bar 233, and a second T-shaped bar 234 which is radially arranged in the side wall direction is joined to the ring- Type drainage pipe 232. The drainage pipe 232 is connected to the drainage pipe.

The U-shaped drainage pipe 232 surrounding the T-shaped bar 231 flows groundwater or the like that is pushed right and left of the T-shaped bar 231 in the direction of the drainage pipe 112, The drain pipe (112) formed in the upper and lower parts is a side wall (130) of the tank body part (100). The drain pipe (232) The groundwater or the like accumulated on the upper portion of the C-shaped channel 111 of the inner collecting unit 110 is drained by the outer collecting unit 230 between the foundation concrete unit 200 and the bottom surface 120 of the tank body 100 Path.

In the case of constructing a drainage type oil storage tank under the ground, the process proceeds directly to the step (M1) of installing the basic large-sized concrete formwork. However, the drainage type oil storage tank 1 is constructed underground by tearing the ground , It is of course possible to carry out the step of disposing before the basic large-sized concrete form installation step (M1)

As shown in FIGS. 10B and 10C, in the step M4 of installing the foundation concrete part 200, the foundation concrete part 200 is formed by pouring the concrete into the formwork of the foundation concrete part 200 The upper surface of the flange 231a of the T-shaped bar 231 and the upper end of both ends of the U-shaped drain pipe 232 are exposed on the upper surface of the foundation concrete part 200, and the tank main body 100 installation step M5 A tank body 100 having a side wall 130, a bottom surface 120 and a ceiling 140 formed of a steel plate is installed on the foundation concrete part 200. The steel plate of the bottom surface 120 is formed into a T- 231 are joined to the inner end of the upper flange 111a of the U-shaped channel 111 while being joined to each other on the flange 231a of the U-shaped channel 111.

When ground water or the like flowing between the side wall 130 of the tank main body 100 and the concrete outer wall 210 flows down along the side wall 130, the bottom of the tank main body 100 of the drainage means The surface 120 and the base concrete 200 serve as drainage passages passing through the groundwater to the upper portion of the U-shaped channel 111 of the inner collecting unit 110.

The step M6 of installing the concrete outer wall part 210 and the like in the tank main body part 100 is performed by placing the outer wall of the concrete body 100 outside the side wall 130 of the tank main body part 100, And the upper surface portion 220 of the concrete is formed on the ceiling 140 of the tank body portion 100 to prevent the tank body portion 100 made of the steel from being subjected to direct impact or load, The drainage type oil storage tank 1 is disposed under the concrete top part 220 by stacking the soil outside the concrete outer wall part 210 and the concrete top part 220 in the step M7 of accumulating the soil on the upper part 210 and the concrete upper part 220. [ To be buried. Before the step of accumulating the gravel (M7) or during the progress of the step (M7), the operation of installing the oil separator (500), the oil sensor (400) and the like may be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be obvious that various modifications may be made within the scope of technical thought. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

1: drainage type oil storage tank
100: tank body portion
110: inner collector 120: bottom surface 130: side wall 140: ceiling
150: Internal drain pipe
111: C-shaped channel 111a: Upper flange 111b: Lower flange
112: drain pipe 113: bottom plate
200: foundation concrete section 210: concrete outer wall section 220: concrete upper surface section
230: Outside housing modification 231: T-shaped bar 231a: Flange 232: U-shaped drainage pipe
233: ring shaped T-shaped bar 234: second T-shaped bar 240: outer drain pipe
250: Second Outside House Correction
300: stiffener 400: oil flow sensor 500:

Claims (12)

1. An oil storage tank embedded in an underground and comprising a steel sheet and concrete,
A tank main body part including a side wall, a bottom surface, and a ceiling formed of a steel plate, the tank main body having an inner water collecting part formed in a circular shape at the center of the bottom surface and an inner water pipe for discharging the fluid in the inner water collecting part to the outside;
A concrete upper wall portion formed on the ceiling of the tank main body portion, the concrete outer wall portion being formed outside the side wall of the tank main body portion;
A foundation concrete portion disposed under the bottom surface of the tank main body portion; And
The inner collecting unit includes a U-shaped channel forming a rim, a bottom plate joined to a lower flange of the U-shaped channel, upper and lower flanges of the U-shaped channel, and a drain pipe penetrating the bottom plate vertically;
A U-shaped drainage pipe surrounding the T-shaped bar, a U-shaped drainage pipe surrounding the T-shaped bar, and a U-shaped drainage pipe surrounding the T-shaped bar, wherein the U-shaped drainage pipe is connected to an outer end of the upper flange of the U- An external drain pipe for discharging fluid in the external collection;
Wherein the U-shaped drain pipe is disposed at a portion where the T-shaped bar is joined to the outer end of the upper flange of the C-shaped channel, and both ends of the U-shaped drain pipe are exposed on the upper surface of the foundation concrete portion;
And a steel plate joined to an inner end of the upper flange of the U-shaped channel while being joined to the bottom surface of the tank main body adjacent to each other at an upper portion of the flange of the T-shaped bar of the foundation concrete portion. Buried drain type oil storage tank.
The method according to claim 1,
A T-shaped bar having a ring shape crossing the end of the T-shaped bar arranged radially is provided, a second T-shaped bar radially arranged in the side wall direction is joined to the ring-shaped T-shaped bar, Type drainage pipe, wherein the drainage pipe further comprises a drain pipe.
3. The method according to claim 1 or 2,
Wherein the foundation concrete part (200) and the bottom surface of the tank body part are inclined downward toward the inner and outer collectors.
3. The method according to claim 1 or 2,
Wherein the inner drain pipe is formed so that one end thereof communicates with the inner collector and is inclined downward toward the other end, and the outer drain pipe is formed so that one end communicates with the outer collector and is inclined downward toward the other end. Drainage type oil storage tank.
delete 3. The method according to claim 1 or 2,
Wherein the inner collecting is a quadrangular shape. ≪ RTI ID = 0.0 > 11. < / RTI >
3. The method according to claim 1 or 2,
Wherein a reinforcing material is installed between the outer collecting and the inner collecting.
3. The method according to claim 1 or 2,
And an oil flow sensor is provided at the other end of the external drain pipe.
3. The method according to claim 1 or 2,
And an oil drain tank is installed at the other end of the external drain pipe.
10. The method of claim 9,
Further comprising a second external condensate connected to the other end of the external drain pipe, a water distribution tank disposed at a higher position than the second external condensate, and a pump for transferring the fluid in the second external condensate to the water separation tank Wherein the tank is a submerged drainage type oil storage tank using a T-shaped bar.
A method of constructing an underground drainage type oil storage tank, which is buried underground and uses a T-shaped bar made of steel and concrete,
a) installing a foundation concrete formwork;
b) An outer collecting wall is installed in the space of the foundation concrete part, and the inner and outer drain pipes are connected to the outer collecting wall and inner collecting wall and the other end is located outside the base concrete wall forming part. A bottom plate joined to a lower flange of the C-shaped channel, and a drain pipe penetrating the upper and lower flanges of the C-shaped channel and the bottom plate vertically;
c) disposing a T-shaped bar that is joined to an outer end of an upper flange of the C-shaped channel of the inner collecting corrugation in a radial direction in a sidewall direction and a U-shaped drain pipe surrounding the T-shaped bar;
d) forming a foundation concrete by pouring concrete into the foundation concrete part so that the upper end of the flange of the T-shaped bar and the upper end of both ends of the U-shaped drain pipe are exposed on the upper surface of the foundation concrete part;
e) a tank body portion having a side wall, a bottom surface, and a ceiling plate made of steel on the upper portion of the foundation concrete, wherein the steel plate on the bottom surface is joined to the upper end portion of the upper flange of the T- ;
f) forming a concrete outer wall portion outside the side wall of the tank main body portion and forming a concrete upper surface portion on the ceiling of the tank main body portion; And
g) stacking the concrete on the outer wall of the concrete and outside the upper surface of the concrete. 12. The method of claim 11,
A T-shaped bar having a ring shape crossing the end of the T-shaped bar radially disposed in the step c) is provided, and a second T-shaped bar radially disposed in the side wall direction is joined to the ring-shaped T- The method further comprising the step of installing a U-shaped drain pipe surrounding the shaped bar. ≪ RTI ID = 0.0 > 11. < / RTI >

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