TW201404991A - Construction method of cylindrical tank - Google Patents

Abstract

This method is provided for constructing a cylindrical tank having an inner tank made of metal materials and an outer tank made of concrete. The method includes a step for fixing a rack for jack (16) to a PC wall (2) and setting a jack up unit (19) onto the rack for jack (16) between the inner and outer tanks at the position which is higher than a base slab (1) while stacking the PC walls (2) onto the base slab (1) from the lowest level to highest level in order, a step for unitarily assembling a roof (14) of the inner tank and a roof of the outer tank on the base slab (1), and a step for attaching side plates (9) of the inner tank from the lowest level to highest level in order and elevating the attached side plates (9) in order by the jack up unit (19). According to this method, laying of a cold insulator and assembly of an annular plate at a bottom portion of the outer tank do not become a critical path, and construction period can be shortened.

Description

Method for constructing cylindrical storage tank

The present invention relates to a method of constructing a cylindrical storage tank.

A cylindrical tank having a double-shell structure of an inner tank and an outer tank is used for storage of a cryogenic liquid such as LNG (liquefied natural gas) and LPG (liquefied petroleum gas). Patent Document 1 discloses a cylindrical storage tank having an inner groove made of metal and an outer groove made of concrete.

Patent Document 1 discloses a technique for constructing an inner groove made of metal and an outer groove made of concrete in order to shorten the construction period of the cylindrical storage tank. Specifically, the jack bracket is placed at the bottom of the outer tub in an upright manner to support the jacking device at a predetermined height (refer to FIG. 4(b) of Patent Document 1). Then, when constructing the side wall of the outer tank, the inner tank roof and the outer tank roof are assembled on the bottom of the outer tank, and then the roof of the inner tank and the roof of the outer tank are raised by the above-mentioned jacking device, from the top In the lower part, the inner groove side plates are installed in the inner groove roof in order, and the metal inner groove and the concrete outer groove are simultaneously constructed.

(previous technical literature) (Patent Literature)

Patent Document 1: Japanese Patent Laid-Open No. Hei 7-62924

However, in the aforementioned prior art, the innermost side plate of the lowermost stage is installed. After the inner tank roof is removed, a part of the ground portion of the jack bracket is removed, and the perlite concrete block and the annular plate are assembled (see Fig. 10 of Patent Document 1).

As described above, in the prior art, in order to provide the jack bracket in the upright manner at the bottom of the outer tank in an upright manner, the cold-preserving operation of laying the cold-preserving material on the bottom of the outer tank becomes a critical path, and the cylindrical storage cannot be sufficiently obtained. The period of the tank is shortened.

The present invention has been made in view of the above problems, and an object thereof is to provide a method for constructing a cylindrical storage tank, in which the laying of the cold-preserving material at the bottom of the outer tank and the assembly of the annular plate are not essential, and the construction period can be achieved. Shorten.

In order to solve the above problems, a cylindrical storage tank having an inner tank made of a metal according to the present invention and an outer tank made of concrete has a method of assembling the bottom of the outer tank from the lowermost portion to the uppermost portion in order. a step of supporting a jacking device on a side wall of the outer groove and supporting the jacking device between the inner groove and the outer groove at a distance above the bottom portion of the outer groove; and In the integrated manner, the inner trough roof and the outer trough roof are assembled, and the inner trough side panels are sequentially installed on the inner trough roof from the uppermost one to the lowermost one, and are installed in order by using the above-mentioned jacking device. The step of the inner groove side plate rising.

In the present invention, after assembling the side walls of the outer tank to a certain height, the bracket is placed on the side wall to support the jacking device. Then, the inner groove side plates installed together with the outer groove roof and the inner groove roof are lifted in order, and the next inner groove side plate is installed in the space formed at the lower portion. Support top The bracket of the starting device is separated from the bottom of the outer tank and disposed between the inner and outer slots, so that interference with the cold keeping operation at the bottom of the outer tank can be eliminated. Therefore, in the present invention, while the inner tank and the outer tank are simultaneously constructed, it is possible to avoid interference with the cold keeping operation of the bottom of the outer tank.

Further, in the method of constructing the cylindrical storage tank according to the present invention, it is preferable that the inner groove side plate to be attached and the inner groove side plate to be mounted between the inner and outer grooves are detachably mounted. a step of joining the annular members extending in a ring shape at the outer circumference; and providing a plurality of the above-mentioned jacking devices, and using the plurality of jacking devices and transmitting the inner groove side plates through the aforementioned annular members The step of ascending.

In this case, the annular member is connected to the plurality of jacking devices, and the annular member is detachably coupled to the attached inner groove side plate, and the connection is quickly released after being lifted up. The lifting of the next inner groove side plate is performed.

Further, in the method of constructing the cylindrical storage tank of the present invention, it is preferable that the number of the connecting portions of the inner groove side plate and the annular member to be attached is detachably connected, which is larger than the setting of the jacking device. The number is more.

At this time, by making the number of the joint portions larger than the number of the jacking devices, the concentrated load applied to the installed inner groove side plates can be reduced. In addition, the number of settings of the jacking device can be reduced, so that the time required to set the jacking device can be shortened.

Further, in the method of constructing the cylindrical storage tank according to the present invention, preferably, the conveying device is provided in the annular member, and the inner groove is formed along the annular member by the conveying device. The side panels are handled.

At this time, since the annular member extends in an annular shape between the inner and outer grooves, the inner groove side plate can be conveyed and attached by the inner ring side plate along the annular member.

Further, in the method of constructing the cylindrical storage tank of the present invention, it is preferable to provide a second conveying device that transmits the opening portion of the side wall of the outer tank to receive the aforesaid conveyance device The inner tank side plate is conveyed by the second conveying device in the direction of the annular member by the second conveyor.

At this time, since the inner groove side plate is conveyed and conveyed along the direction of the annular member, the smooth operation of the inner groove side plate can be achieved.

Furthermore, in the method of constructing the cylindrical storage tank of the present invention, it is preferable to have the following steps, comprising: assembling on the bottom of the outer tank before the assembly of the side wall of the outer tank a step of assembling the outer groove side plates from the lowermost portion to the uppermost portion in the inner side of the region of the outer side wall of the outer groove; and providing a construction frame on the outer side of the outer groove side plate, and assembling the outer groove through the construction frame The steps of the side walls.

At this time, the outer groove side plate is assembled along the inner side before the side wall of the outer groove is assembled, and the construction frame for assembling the side wall of the outer groove is disposed on the outer side of the outer groove side plate, thereby avoiding the outer groove The jacking operation performed on the inner side of the side panel interferes.

Further, in the method of constructing the cylindrical storage tank of the present invention, the outer tank is preferably made of pre-stress concrete.

As described above, according to the present invention, the inner tank and the outer tank are simultaneously performed Construction, and one side can avoid interference with the cold preservation operation at the bottom of the outer tank.

Therefore, in the present invention, the laying of the cold-preserving material at the bottom of the outer tank and the assembly of the annular plate do not become essential. Therefore, it is possible to shorten the construction period.

Hereinafter, a method of constructing a cylindrical storage tank of the present invention will be described with reference to the drawings. In the following description, a PC (pre-concrete concrete) double-shell tank in which LNG is stored as a cylindrical storage tank is exemplified.

First, as shown in Fig. 1, the construction of a substantially circular base floor (bottom of the outer tank) 1 is performed. In the outer peripheral portion of the base plate 1, the base portion 3 for assembling the PC wall (the side wall of the outer groove) 2 to be described later is protruded upward. Further, an inner groove anchoring band 4 is provided along the inner side of the base portion 3.

Next, as shown in Fig. 2A, a side lining plate (outer groove side plate) 5 is assembled on the base plate 1. Further, the side lining plate 5 has both a concrete frame. The side lining plate 5 is usually a steel material having a plate thickness of about 6 mm, and in the present embodiment, the thickness is set to about 20 mm to improve the strength.

The side lining plate 5 is assembled along the inner side of the base portion 3. At this time, as shown in FIG. 2B, a substantially L-shaped inserting plate 6 is provided at the base end portion of the base portion 3, and the side liner 5 is attached to the inserting plate 6. Further, as shown in Fig. 2A, the bottom liner 7 is laid on the base plate 1. At this time, as shown in FIG. 2B, the edge portion of the bottom liner 7 is superposed on the inserting plate 6.

Next, as shown in Fig. 3, the side liner 5 is assembled. Further, a temporary bracket 8 for assembling the inner groove side plate is provided along the inner side of the base end portion of the side lining plate 5.

Then, as shown in Figure 4, the order from the bottom to the top is in order The side liner 5 is assembled. Further, the side lining plate 5 is assembled here, for example, to the fourth stage.

Next, as shown in Fig. 5, the side wall 5 assembled to the fourth stage is firstly cast, and the PC wall 2 of the lowermost stage (first stage) is cast on the base portion 3. Further, on the temporary bracket 8, the inner groove side plates 9 are provided in an upright manner, and the adjacent inner groove side plates 9 are welded to each other and assembled into a ring shape. Further, the inner groove side plate 9 is raised in the subsequent step, and is finally located in the uppermost stage (the ninth stage in the present embodiment). The inner groove side plate 9 is formed of Ni steel material having preferable toughness and strength.

Next, as shown in Fig. 6, the roof bracket 10 is assembled at the center portion of the base plate 1. Further, the angled plate 11 is assembled at the upper end portion of the inner groove side plate 9. Furthermore, the high-level work vehicle 12 is taken into the base floor 1. Further, under the temporary support 8, the constituent members of the perforated concrete block and the annular portion 13 of the lightweight concrete block for construction are temporarily provided.

Next, as shown in Fig. 7, the inner trough roof block is loaded on the roof support 10, and the inner trough roof 14 is assembled. Further, the inner groove side plate 9 is attached to the outer peripheral portion of the inner tank roof 14 through the angled plate 11. Further, at this time, the PC wall 2 is cast and assembled in the order from the lowermost stage to the uppermost stage along the side lining plate 5 (here, the fifth stage to the middle).

Next, a jack bracket (bracket) 16 is provided on the PC wall 2 between the inner and outer grooves (between the PC wall 2 and the inner groove side plate 9) 15 above the base plate 1. The jack bracket 16 is provided to protrude horizontally from the PC wall 2 of a predetermined height toward the inside. The jack bracket 16 is firmly supported by the PC wall 2, for example, by a J-shaped anchor or the like which is embedded when the PC wall 2 is cast.

Next, as shown in Fig. 8, the outer tank roof 17 is assembled on the inner tank roof 14. When the outer tank roof 17 is assembled, the jack bracket 16 is used to support the outer peripheral flange portion of the outer tank roof 17. Moreover, the inner tank roof 14 and the outer tank roof 17 are connected by a connecting material (not shown), and are assembled integrally.

Further, the side liner 5 is assembled. Then, a one-leg construction frame (construction frame) 18 is provided on the outer side of the side liner 5, and casting of the PC wall 2 is continued. Since the PC wall 2 is adjusted in thickness as described above and the strength is increased, the one-legged construction frame 18 can be provided without providing a conventional two-legged construction frame. As a result, it is possible to avoid interference with the jacking operation described later on the inner side of the side liner 5.

Next, as shown in Fig. 9, the jacking device 19 is placed in the jack bracket 16. The jacking device 19 has a jacking rod 20.

Next, as shown in Fig. 10, a jacking ring (annular member) 21 is attached to the lower end portion of the jacking rod 20. The jacking ring 21 is formed by connecting a plurality of H-shaped steels extending in the horizontal direction, and the inner and outer grooves 15 extend in a ring shape along the outer circumference of the inner groove side plates 9.

The jacking ring 21 and the inner groove side plate 9 are detachably connected to each other. More specifically, as shown in Fig. 11, the lifting tool 22 is welded and integrally formed in the mesh of the jacking ring 21, and the lifting tool 23 is welded and integrated. The hoisting tool 22 and the hoisting tool 23 are detachably coupled to the outer peripheral portion of the inner tank side plate 9 by using the plug 24 to form the connecting portion 25. Further, from the viewpoint of work efficiency, the lifting tool 23 of the inner groove side plate 9 is preferably left as a permanent tool without being cut off after being lifted up.

Fig. 12 is a plan sectional view for explaining a state in which the jacking ring 21 and the inner groove side plate 9 are coupled. The jacking device 19 is provided at a plurality of intervals along the circumferential direction of the inner tank side plate 9, and the jacking ring 21 is supported by a plurality of jacking rods 20 provided in the jacking device 19.

Further, the connecting portions 25 are provided in plural at intervals smaller than the interval between the jacks 20. That is, the number of the joint portions 25 that connect the inner groove side plate 9 and the jacking ring 21 in a detachable manner is set more than the number of the jacking devices 19 (the number of the jacks 20). In this way, the concentrated load applied to the inner side panel 9 at the time of jacking can be reduced. Further, in this way, the number of settings of the jacking device 19 can be reduced, and the time required to set the jacking device 19 can be shortened.

Returning to Fig. 10, the carrying device 26 is provided in the jacking ring 21. The conveying device 26 has a guide rail 27 attached to a lower portion of the jacking ring 21, and a pulley 28 that is movable along the guide rail 27. The guide rail 27 is formed by connecting a plurality of I-shaped steels extending in the horizontal direction, and the inner and outer grooves 15 extend in a ring shape along the outer circumference of the inner-groove side plates 9. Then, the guide rail 27 is provided with the pulley 28, and the inner groove side plate 9 can be conveyed in the circumferential direction of the inner and outer groove portions 15.

Further, the PC wall 2 is provided with a second transport device 30 for receiving the inner tank side plate 9 in the transport device 26 through a construction port (opening) 29 provided in the PC wall 2. The second conveying device 30 has a guide rail 31 that extends from the construction port 29 to the outside of the PC wall 2, and a pulley 32 that is movable along the guide rail 31. The guide rail 31 is formed by connecting a plurality of I-shaped steels, and as shown in Fig. 12, extends in a direction along the jacking ring 21 (the tangential direction of the jacking ring 21). Then, the inner groove side plate 9 can be carried in the direction along the jacking ring 21 by the pulley 32 provided on the guide rail 31.

Next, as shown in Fig. 13, the inner groove side plate 9 is raised together with the inner groove roof 14 and the outer groove roof 17 by the jacking device 19. Then, the next inner groove side plate 9 (the inner groove side plate 9 of the eighth stage) is carried into the space formed in the lower portion of the inner groove side plate 9. Next, the inner groove side plate 9 to be attached is conveyed to the conveyance device 26 provided in the lower portion of the jacking ring 21 by the second conveyance device 30 in the direction along the jacking ring 21.

As shown in Fig. 12, the second conveying device 30 conveys the inner groove side plate 9 in the direction of the jacking ring 21, so that the inner groove side plate 9 can be smoothly conveyed without adjusting the direction thereof. Transport device 26. Then, the received inner groove side plate 9 is conveyed toward the periphery of the inner and outer groove portions 15 along the extending direction of the guide rail 31 connected to the lower portion of the jacking ring 21 by the conveying device 26. The conveyed inner groove side plate 9 is detached to the temporary holder 8 at a predetermined position, and is disposed in a ring shape at a lower portion of the inner groove side plate 9 that is pushed up. Then, the inner groove side plates 9 arranged in a ring shape are welded to each other, and the inner groove side plate 9 arranged in a ring shape and the inner groove side plate 9 which is lifted up are welded.

Next, as shown in Fig. 14, the connection of the jacked inner side panel 9 and the jacking ring 21 is released, and the jacking rod 20 is lowered, and the mounted inner groove side panel 9 and the jacking ring 21 are again re-applied. link. Thereafter, the mounted inner groove side plate 9 is raised by the jacking device 19, and the inner groove side plate 9 to be reattached is carried. By repeating this step, the inner groove side plates 9 from the uppermost stage to the lowermost stage are sequentially mounted.

In this step, as shown in Figure 15, on the base plate 1, advance The cold-keeping construction of the annular portion 13 and the cold-keeping construction at the central portion. The cold-maintenance construction of the central part is carried out by laying on the bottom lining 7 of the base plate 1, and laminating the cold-preserving material 33, more specifically by sequentially applying the bottom anti-cold-heat cushioning material, foam glass, lightweight bubble concrete, etc. Stacking is done. Further, the cold-maintenance construction of the annular portion 13 is carried out by assembling a perlite concrete block and a lightweight concrete block for construction under the temporary support 8, and attaching an annular plate thereto.

Further, in this step, the PC wall 2 is assembled to the uppermost stage while the one-legged construction frame 18 is provided. Further, in this step, the fire step 34 is disposed outside the PC wall 2. Further, in this step, the roof step 35, the perlite manhole 36, the inner and outer groove roof manholes 37, and the like are placed on the outer tank roof 17.

Next, as shown in Fig. 16, when the attachment to the lowermost stage of the inner groove side plate 9 is completed, the temporary holder 8 is removed, and the lower end portion of the lowermost stage of the inner groove side plate 9 is removed to the annular portion 13, and The lower end portion is attached to the groove anchoring belt 4 provided in the base plate 1. Further, the raised roof roof 17 is attached to the upper end portion of the PC wall 2 assembled to the uppermost stage by a chamfered plate (not shown). Then, the jack is removed by the bracket 16 and the jacking device 19 and the like.

Next, as shown in Fig. 17A, the inner tank bottom plate 38 is laid. In this way, the cold insulation construction at the bottom is ended. Further, in Fig. 17B, reference numeral 1 denotes a base plate 1, reference numeral 7 denotes a bottom lining plate, reference numeral 38 denotes an inner groove bottom plate 38, reference numeral 39 denotes a bottom cold heat resistant cushioning material, reference numeral 40 denotes a foam glass, and reference numeral 41 denotes a lightweight one. Bubble concrete, symbols 41A and 41B Perlite concrete blocks, reference numeral 42 denotes a lightweight concrete block for construction, and reference numeral 43 denotes an annular plate.

Thereafter, the prestressing construction of the PC wall 2 is performed. Then, after the inner tank construction port (not shown) is closed and a pump cylinder (not shown) is provided, water is filled and a pressure/airtight test is performed.

Finally, as shown in Fig. 18, a cold-preserving material 44 (for example, perlite) is filled into the inner and outer tanks 15 to perform cold-insulation between the inner and outer tanks. Thereafter, the cylindrical storage tank 100 is constructed by smearing construction and piping cooling construction.

Fig. 19 is a flow chart showing the entire construction method of the embodiment of the present invention. Further, in Fig. 19, the steps of the hatch (the base, the PC wall, and the side PUF (polyurethane foam)) civil engineering construction business are added.

According to this method, as shown in Figure 19, after the foundation construction is completed, the PC wall construction is carried out after the construction of the liner (side liner 5), and the construction of the roof, the inner tank and the floor is carried out when the PC wall is constructed. . In this way, the construction period can be greatly shortened.

That is, in the above-described embodiment, in the method of constructing the cylindrical storage tank 100 having the inner groove made of metal and the outer groove made of concrete, the following procedure is employed.

1. During the assembly of the PC wall 2 in the order from the lowermost segment to the uppermost segment on the base plate 1, the jack for the jack 16 is placed above the base plate 1 and between the inner and outer grooves of the inner and outer grooves. The step of supporting the jacking device 19 is provided on the PC wall 2.

2. The inner groove roof 14 and the outer groove are integrally formed on the base plate 1 The roof 17 is assembled, and the inner groove side plate 9 is attached to the inner groove roof 14 in order from the uppermost portion to the lowermost portion, and the mounted inner groove side plate 9 is sequentially raised by the jacking device 19.

In this manner, the jack support bracket 16 for supporting the jacking device 19 is disposed apart from the base base plate 1 in the inner and outer groove portions 15. Therefore, it is possible to avoid interference with the cold preservation operation of the base plate 1, and the construction of the inner groove and the outer groove at the same time, and the interference with the cold preservation operation of the base plate 1 can be avoided.

Therefore, in the present embodiment, the cold-preserving operation of applying the cold-preserving material to the base plate 1 does not become a required diameter. Therefore, it is possible to shorten the construction period.

Further, in the present embodiment, a method having the following steps is employed.

3. The step of connecting the inner groove side plate 9 to be mounted and the inner and outer groove portions 15 to the outer circumference of the inner groove side plate 9 to be annularly connected in a ring shape is detachably attached.

4. A plurality of jacking devices 19 are provided, and the plurality of jacking devices 19 are used to pass the above-mentioned connected jacking ring 21 to raise the inner groove side plate 9 to be mounted.

In this way, by connecting the jacking ring 21 to the plurality of jacking devices 19, and attaching and detaching the jacking ring 21 to the mounted inner slot side plate 9, the jacking ring can be quickly assembled. The connection is released, and the lifting of the next inner groove side plate 9 is performed.

Further, in the present embodiment, the number of the connecting portions 25 for detachably connecting the attached inner groove side plate 9 and the jacking ring 21 in a detachable manner is more than the number of the jacking devices 19. many. In this way, the number of the joint portions 25 is made larger than the number of the jacking devices 19, The concentrated load applied to the mounted inner groove side plates 9 can be reduced. Further, in this way, the number of settings of the jacking device 19 can be reduced, and the time required to set the jacking device can be shortened.

Further, in the present embodiment, a method is employed in which the conveying device 26 is provided in the jacking ring 21, and the inner groove side plate 9 is conveyed along the jacking ring 21 by the conveying device 26. At this time, since the jacking ring 21 extends in a ring shape between the inner and outer grooves 15, the inner groove side plate 9 is conveyed along the jacking ring 21, whereby the inner groove side plate 9 with high efficiency can be transported and attached.

Further, in the present embodiment, a method is employed in which the second transfer device 30 that receives the inner groove side plate 9 in the transport device 26 through the construction port 29 provided in the PC wall 2 is provided, and the second transfer device 30 is used. 2 The conveyance device 30 conveys the inner groove side plate 9 in the tangential direction of the jacking ring 21. Therefore, the inner groove side plate 9 can be conveyed and received by the tangential direction of the jacking ring 21, whereby the smooth operation of the inner groove side plate 9 can be achieved.

Further, in the present embodiment, a method having the following steps is employed.

5. Before the assembly of the PC wall 2, the step of assembling the side liner 5 in order from the lowermost portion to the uppermost portion on the base substrate 1 along the inner side of the region where the PC wall 2 is to be assembled.

6. The step of assembling the monopod construction frame 18 on the outer side of the side lining plate 5 and assembling the PC wall 2 through the one-leg construction frame 18.

Therefore, by assembling the side liner 5 along the inner side and assembling the one-leg construction frame 18 of the PC wall 2 on the outer side of the side liner 5 before the assembly of the PC wall 2, it is possible to avoid It interferes with the jacking operation performed on the inner side of the side liner 5.

Heretofore, the preferred embodiments of the present invention have been described with reference to the drawings, and the present invention is not limited to the embodiments described above. The means and combinations of the components and the constituent members of the above-described embodiments are merely examples, and the addition, the omission, the substitution, and other design requirements of the components are not included in the scope of the present invention. Various changes are possible. The invention is not limited by the foregoing description, but is only limited by the scope of the appended claims.

For example, in the above-described embodiment, the thickness of the side lining plate 5 is set to about 20 mm, and the strength is increased. However, the present invention is not limited to this means. For example, a dual-purpose construction frame may be provided instead. Reinforcement.

Further, in the above-described embodiment, for the steps shown in FIGS. 2A and 2B, the case where the substantially L-shaped inserting plate 6 is provided at the base end portion of the base portion 3 has been described. However, the present invention is not limited to this means. For example, as shown in Fig. 20, the inserting plate 6 may be formed in a flat shape.

Further, for example, in the above-described embodiment, the case where the inner groove side plate 9 is provided in an upright manner on the temporary holder 8 in the step shown in Fig. 5 has been described, but the present invention is not limited to this means. For example, the angled plate 11 may be assembled before assembling the inner groove side plate 9. Further, a means for lifting the first assembled corner plate 11 by the jacking device 19 may be employed.

Further, for example, in the above-described embodiment, as shown in FIGS. 11 to 14 , the case where the jacking device 21 is used to lift the inner groove side plate 9 is described. However, the present invention does not. Limited to this means, for example, as shown in FIG. 21, it is also possible to use the rod connector 50 to lift the inner groove side. The means of board 9.

The rod connectors 50 are attached to the lower ends of the jacks 20, respectively. Further, the rod connector 50 has a latch 51 that can be directly coupled to the inner groove side plate 9 or the angled plate 11. Specifically, as shown in Fig. 21, the structure of the latch 51 is freely caught by the catching piece 51 welded to the inner groove side plate 9.

According to this configuration, the time and labor for assembling and disassembling the jacking ring 21 can be reduced, and interference with the structure of the inner and outer grooves 15 can be reduced.

(industrial availability)

According to the present invention, in the construction method of the cylindrical storage tank having the metal inner tank and the outer tank made of concrete, the inner tank and the outer tank are simultaneously constructed, and one side can avoid the bottom of the outer tank. Interference in cold storage operations. Therefore, the laying of the cold-preserving material at the bottom of the outer tank and the assembly of the annular plate are not required, and the construction period can be shortened.

1‧‧‧Basic base plate (bottom of outer groove)

2‧‧‧PC wall (side wall of outer groove)

3‧‧‧Basic Department

4‧‧‧Internal anchoring band

5‧‧‧Side liner (outer groove side panel)

7‧‧‧Bottom liner

8‧‧‧ Temporary stent

9‧‧‧Inch slot side panel

11‧‧‧Folding board

13‧‧‧Rings

14‧‧‧Inch roof

15‧‧‧Internal and external trough rooms

16‧‧‧ jack bracket (bracket)

17‧‧‧ outer trough roof

18‧‧‧One-legged construction frame (construction frame)

19‧‧‧ jacking device

20‧‧‧Top rod

21‧‧‧Top ring (ring member)

22, 23‧‧‧ lifting tools

24‧‧‧Tram

25‧‧‧Connecting Department

26‧‧‧Transportation device

28, 32‧‧‧ pulley

29‧‧‧ Construction port (opening)

30‧‧‧2nd handling device

31‧‧‧ rails

33‧‧‧ Cooling materials

34‧‧‧Fire ladder

35‧‧‧ Roof ladder

36‧‧‧Perlite Manhole

37‧‧‧Inner and outer trough roof manhole

38‧‧‧Inner trough bottom plate

39‧‧‧Bottom anti-cold heat buffer material

40‧‧‧foam glass

41‧‧‧Lightweight bubble concrete

41, 41B‧‧‧ Perlite concrete blocks

42‧‧‧Lightweight concrete blocks for trough construction

43‧‧‧ring plate

51‧‧‧Latch

52‧‧‧Bucks

100‧‧‧Cylinder storage tank

Fig. 1 is a view showing a first step of a method of constructing an embodiment of the present invention.

Fig. 2A is a view showing a second step of the construction method of the embodiment of the present invention.

Fig. 2B is an enlarged view of a portion A of Fig. 2A.

Fig. 3 is a view showing a third step of the construction method of the embodiment of the present invention.

Fig. 4 is a view showing a fourth step of the construction method of the embodiment of the present invention.

Figure 5 is a fifth step showing the construction method of the embodiment of the present invention. Picture.

Fig. 6 is a view showing a sixth step of the construction method of the embodiment of the present invention.

Fig. 7 is a view showing a seventh step of the method of constructing the embodiment of the present invention.

Fig. 8 is a view showing the eighth step of the construction method of the embodiment of the present invention.

Fig. 9 is a view showing a ninth step of the construction method of the embodiment of the present invention.

Fig. 10 is a view showing a jack for a jack and a jacking device according to an embodiment of the present invention.

Fig. 11 is a view showing a connecting portion according to an embodiment of the present invention.

Fig. 12 is a plan sectional view for explaining a state in which the jacking ring and the inner groove side plate are connected in the embodiment of the present invention.

Fig. 13 is a view showing the jacking operation of the embodiment of the present invention.

Fig. 14 is a view showing the jacking operation of the embodiment of the present invention.

Fig. 15 is a view showing a tenth step of the construction method of the embodiment of the present invention.

Fig. 16 is a view showing the eleventh step of the construction method of the embodiment of the present invention.

Fig. 17A is a view showing a twelfth step of the construction method of the embodiment of the present invention.

Fig. 17B is an enlarged view of a portion B of Fig. 17.

Figure 18 is a diagram showing the thirteenth step of the construction method of the embodiment of the present invention. The picture of the sudden.

Fig. 19 is a flow chart showing the entire construction method of the embodiment of the present invention.

Fig. 20 is a view showing a second step of the construction method of another embodiment of the present invention.

Figure 21 is a view showing a jacking device according to another embodiment of the present invention.

1‧‧‧Basic base plate (bottom of outer groove)

2‧‧‧PC wall (side wall of outer groove)

3‧‧‧Basic Department

4‧‧‧Internal anchoring band

5‧‧‧Side liner (outer groove side panel)

7‧‧‧Bottom liner

8‧‧‧ Temporary stent

9‧‧‧Inch slot side panel

11‧‧‧Folding board

13‧‧‧Rings

14‧‧‧Inch roof

15‧‧‧Internal and external trough rooms

16‧‧‧ jack bracket (bracket)

17‧‧‧ outer trough roof

18‧‧‧One-legged construction frame (construction frame)

19‧‧‧ jacking device

20‧‧‧Top rod

21‧‧‧Top ring (ring member)

33‧‧‧ Cooling materials

Claims (10)

A method for constructing a cylindrical storage tank, which is a method for constructing a cylindrical storage tank having a metal inner tank and an outer tank made of concrete, having: from the lowermost portion to the uppermost portion on the bottom of the outer tank a step of assembling the side wall of the outer groove in sequence, between the inner groove and the outer groove, and providing a bracket on the side wall of the outer groove to support the jacking device; and The inner trough roof and the outer trough roof are assembled in a unitary manner on the bottom portion, and the inner trough side panels are sequentially attached to the inner trough roof from the uppermost portion to the lowermost portion, and the jacking device is pressed by the jacking device The step of sequentially raising the installed inner groove side plates. The method of constructing a cylindrical storage tank according to the first aspect of the invention, wherein the inner groove side plate to be mounted and the inner and outer grooves are installed along the inside of the inner tank a step of connecting the outer circumference of the groove side plate to an annular ring member; and providing a plurality of the above-mentioned jacking devices, and using the plurality of jacking devices, and the aforementioned annular members are connected to the aforementioned The step of raising the side plate of the inner groove. The method of constructing a cylindrical storage tank according to the second aspect of the invention, wherein the number of the connecting portions of the inner groove side plate and the annular member to be attached is detachably connected to the top There are more settings for the device. The method for constructing a cylindrical storage tank as described in claim 2, In the first step, the conveying device is provided in the annular member, and the inner groove side plate is conveyed along the annular member by the conveying device. The method of constructing a cylindrical storage tank according to the third aspect of the invention, wherein the conveying device is provided in the annular member, and the conveying device is used to carry the aforementioned along the annular member The inner side panel is transported. The method for constructing a cylindrical storage tank according to the fourth aspect of the invention, wherein the second conveying device is provided with a second conveying device that transmits the opening portion of the side wall of the outer tank to the conveying device The inner groove side plate is received, and the inner groove side plate is conveyed in the direction along the annular member by the second conveying device. The method of constructing a cylindrical storage tank according to claim 5, wherein the second conveying device is provided with a second conveying device that transmits the opening portion of the side wall of the outer tank to the conveying device The inner groove side plate is received, and the inner groove side plate is conveyed in the direction along the annular member by the second conveying device. The method for constructing a cylindrical storage tank according to any one of the preceding claims, wherein the method of the present invention comprises the step of: before assembling the side wall of the outer groove, on the bottom of the outer groove a step of assembling the outer groove side plates in order from the lowermost portion to the uppermost portion along the inner side of the region where the outer side wall of the outer groove is to be assembled; and providing a construction frame on the outer side of the outer groove side plate through the construction frame The step of assembling the side walls of the aforementioned outer tank. The method of constructing a cylindrical storage tank according to any one of the preceding claims, wherein the outer tank is made of pre-stress concrete. The method of constructing a cylindrical storage tank according to the eighth aspect of the invention, wherein the outer tank is made of pre-stress concrete.