TWI502119B - Method for fabricating a cylindrical tank - Google Patents
Method for fabricating a cylindrical tank Download PDFInfo
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- TWI502119B TWI502119B TW101126572A TW101126572A TWI502119B TW I502119 B TWI502119 B TW I502119B TW 101126572 A TW101126572 A TW 101126572A TW 101126572 A TW101126572 A TW 101126572A TW I502119 B TWI502119 B TW I502119B
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Description
本發明係有關圓筒型儲槽之構築方法。The present invention relates to a method of constructing a cylindrical storage tank.
具有內槽與外槽之雙重殼構造的圓筒型儲槽係使用在LNG(液化天然氣)或LPG(液化石油氣)等之低溫液體的儲藏。在專利文獻1，揭示有具有金屬製的內槽與混凝土製的外槽之圓筒型儲槽。A cylindrical storage 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) or 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.
在專利文獻1揭示一種手法，係為了謀求縮短圓筒型儲槽的工期，而同時對金屬製的內槽與混凝土製的外槽進行施工。具體而言，以直立方式將千斤頂支架設置在外槽底部，以將頂起裝置支撐在預定高度(參照專利文獻1的第4圖(b))。然後，於進行外槽的側壁施工時，藉由在外槽底部上將內槽屋頂與外槽屋頂予以組裝，接著，一邊利用前述頂起裝置使內槽屋頂與外槽屋頂上升，一邊從最上段者到最下段者按照順序將內槽側板予以安裝在內槽屋頂，而達成同時對金屬製的內槽與混凝土製的外槽進行施工。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 inner tank roof and the outer tank roof are raised by the above-mentioned jacking device, while the uppermost section is In the lower part, the inner trough side panels are installed in the inner trough roof in order, and the inner tank of the metal and the outer tank made of concrete are simultaneously constructed.
專利文獻1：日本特開平7-62924號公報Patent Document 1: Japanese Patent Laid-Open No. Hei 7-62924
但是，在前述習知技術中，將內槽側板安裝在內槽屋頂後，以內槽側板的下部作為頂起點，將組裝過程中之儲 槽構成構件予以頂起。但是，內槽側板之尤其是最上段之側板係大多設計為支撐內槽屋頂的重量之程度的強度，故將內槽屋頂與外槽屋頂之合計重量予以支撐時，有產生壓屈之虞。另一方面，僅將內槽側板之板厚加厚，使儲槽之設計產生浪費。However, in the prior art, the inner groove side plate is installed on the inner groove roof, and the lower portion of the inner groove side plate is used as the top starting point to store the assembly process. The groove constituting member is jacked up. However, in particular, the side plate of the innermost groove side plate is designed to support the weight of the inner groove roof. Therefore, when the total weight of the inner groove roof and the outer groove roof is supported, there is a problem of buckling. On the other hand, only the thickness of the inner groove side plate is thickened, which wastes the design of the storage tank.
此外，在前述習知技術中，在內槽屋頂將內槽側板安裝到最下段者後，將千斤頂支架之接地部的一部分予以撤除，且將珍珠岩混凝土塊及環狀板予以組裝。亦即，在前述習知技術中，為了以直立方式將千斤頂支架設置在外槽的底部，而在外槽的底部敷設保冷材料之保冷作業成為要徑(critical path)，而無法充分地謀求縮短圓筒型儲槽的工期。Further, in the above-described prior art, after the inner groove side panel is attached to the lowermost portion of the inner tank roof, a part of the ground portion of the jack bracket is removed, and the perlite concrete block and the annular plate are assembled. That is, in the prior art, in order to arrange the jack bracket in 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 cylinder cannot be sufficiently shortened. The construction period of the type of storage tank.
本發明係鑑於前述問題而研創者，其目的係提供一種圓筒型儲槽之構築方法，其係使內槽側板的設計發揮最大效益，且使儲槽構成構件之頂起的作業性能提高，同時消除內外槽的組裝作業與外槽底部的保冷作業之干擾而可謀求縮短工期。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 which maximizes the design of the inner groove side plates and improves the workability of the lifting of the storage tank constituent members. At the same time, the assembly work of the inner and outer grooves and the cold-proof operation at the bottom of the outer tank can be eliminated, and the construction period can be shortened.
為了解決前述課題，具有本發明之金屬製的內槽與混凝土製的外槽之圓筒型儲槽的構築方法具有：外側壁組裝步驟，係在前述外槽之底部上，在組裝前述內槽的側壁之前先將前述外槽的側壁按順序從最下段者到上段側者予以組裝；折角組裝步驟，係在前述外槽之底部上，至少將內槽屋頂的外周緣部之以朝下方彎曲之方式形成之折角部 (knuckle)予以組裝；吊裝側支架安裝步驟，係在前述外側壁組裝步驟所組裝之前述外槽的側壁之位於比前述折角部更上方之部位，將吊裝側千斤頂(jack)支架予以安裝；被吊裝側支架安裝步驟，係將被吊裝側千斤頂支架安裝在前述折角部；千斤頂設置步驟，係將使包含前述折角部的儲槽構成構件上升之頂起裝置，跨越前述各千斤頂支架間而設置；以及內側壁安裝步驟，係利用前述頂起裝置一邊使前述儲槽構成構件階段性地上升，且一邊將內槽側板按順序從最上段者到下段側者安裝在前述折角部的下方。In order to solve the above problems, a method of constructing a cylindrical tank having an inner tank made of metal and an outer tank made of concrete according to the present invention includes an outer wall assembling step of assembling the inner tank on the bottom of the outer tank Before the side wall, the side wall of the outer groove is assembled from the lowermost part to the upper side in sequence; the folding angle assembling step is on the bottom of the outer groove, and at least the outer peripheral edge portion of the inner groove roof is bent downward Corner formed by the way (kuckle) is assembled; the hoisting side bracket mounting step is to install the hoisting side jack bracket at a portion of the side wall of the outer groove assembled in the outer wall assembling step at a position higher than the angled portion; The lifting side bracket mounting step is to install the hoisting side jack bracket in the above-mentioned corner portion; the jack setting step is to set the jacking device for raising the sump forming member including the corner portion to be disposed across the jack brackets; In the inner wall mounting step, the sump forming member is stepwise raised by the hoisting device, and the inner groove side plate is attached to the lower side of the gusset portion in order from the uppermost portion to the lower side.
依據此構成，在將內槽屋頂與外槽屋頂安裝成一體之狀態下頂起儲槽構成構件時，上述合計重量亦不會施加在內槽側板，而可透過較具有強度(板厚)之折角部來頂起儲槽構成構件。According to this configuration, when the tank constituting member is pushed up in a state in which the inner tank roof and the outer tank roof are integrally attached, the total weight is not applied to the inner tank side plate, and the permeable medium has a relatively high strength (thickness). The chamfered portion lifts up the sump forming member.
此外，藉由在內槽屋頂之外周緣部將被吊裝側千斤頂支架安裝在向下方彎曲(換言之，以愈上側愈從外槽的側壁分離之方式彎曲)之折角部，在強度上即使被吊裝側千斤頂支架成為大型時，與將該支架配置在內外槽側壁間之較狹窄的空間之情形相比較，亦變得容易確保對於外槽的側壁之空隙。In addition, the gusseted side jack bracket is attached to the corner portion of the slinged side jack bracket at the outer peripheral portion of the inner tank roof to be bent downward (in other words, the upper side is bent away from the side wall of the outer tank), and even if it is hoisted in strength When the side jack bracket is large, it is easier to secure the gap with the side wall of the outer tank as compared with the case where the bracket is disposed in a narrow space between the side walls of the inner and outer grooves.
並且，將外槽的側壁組裝到某些程度的高度後，於安裝在此側壁之吊裝側千斤頂支架與安裝在內槽的折角部之被吊棚千斤頂支架之間設置頂起裝置，且利用此頂起裝置而一邊與外槽屋頂及內槽屋頂一起將安裝在內槽屋頂之內槽側板予以頂起，一邊可於形成在其下方之空間進行下一 個內槽側板的安裝。And, after assembling the side wall of the outer groove to a certain height, a jacking device is disposed between the lifting side jack bracket mounted on the side wall and the suspended jack jack bracket installed at the corner portion of the inner groove, and the top is used As the device is installed, together with the outer trough roof and the inner trough roof, the side panel of the trough installed in the inner trough roof is lifted up, and the space formed below it can be carried out next. Installation of the inner side panels.
此外，在本發明的圓筒型儲槽之構築方法中，亦可復具有一步驟，係在前述內側壁安裝步驟使前述儲槽構成構件上升到預定高度後，在利用設置在前述外槽的側壁之保持手段將此儲槽構成構件保持在前述預定高度之狀態下，將前述頂起裝置的設置高度予以變更之千斤頂高度變更步驟。Further, in the method of constructing the cylindrical storage tank of the present invention, it is also possible to have a step of raising the storage tank constituent member to a predetermined height after the inner wall mounting step, and using the outer tank provided The holding means of the side wall is a step of changing the height of the jack to change the installation height of the jacking device while maintaining the tank constituting member at the predetermined height.
依據此構成，藉由交替重複內側壁安裝步驟與千斤頂高度變更步驟，即使為小型的頂起裝置亦可將內槽側板組裝到所希望的高度。According to this configuration, by alternately repeating the inner wall mounting step and the jack height changing step, the inner groove side plate can be assembled to a desired height even for a small jacking device.
再者，前述頂起裝置亦可具有頂起桿及千斤頂本體，該千斤頂本體係藉由作動而沿著該頂起桿移動，而將前述千斤頂本體支撐在前述被吊裝側千斤頂支架，同時將前述頂起桿卡合在前述吊裝側千斤頂支架，且利用前述千斤頂本體之正轉驅動，使此千斤頂本體以沿著前述頂起桿之方式上升，且使前述被吊裝側千斤頂支架及前述儲槽構成構件上升，另一方面在前述千斤頂高度變更步驟將前述頂起裝置之設置高度予以變更時，從前述外槽之側壁將前述吊裝側千斤頂支架予以拆卸，並利用前述千斤頂本體之反轉驅動而使前述吊裝側千斤頂支架與前述頂起桿一起上升後，再次將前述吊裝側千斤頂支架安裝在前述外槽之側壁。Furthermore, the jacking device may further have a jacking rod and a jack body, the jack system is moved along the jacking rod by actuation, and the jack body is supported on the lifted side jack bracket, and the foregoing The jacking rod is engaged with the lifting side jack bracket, and the jack body is driven by the forward rotation of the jack body, so that the jack body rises along the jacking rod, and the hoisted side jack bracket and the storage tank are configured When the member is raised, and the height of the jacking device is changed in the step of changing the height of the jack, the lifting side jack bracket is detached from the side wall of the outer groove, and the driving of the jack body is reversed. After the lifting side jack bracket is raised together with the jacking rod, the lifting side jack bracket is again mounted on the side wall of the outer groove.
依據此構成，於變更頂起裝置之設置高度時，不需要比較重的千斤頂本體側的上升與裝卸，而僅藉由比較輕的頂起桿側的上升與裝卸，即可容易進行頂起裝置之設置高 度的變更。According to this configuration, when the height of the jacking device is changed, the lifting and loading and unloading of the relatively heavy jack body side are not required, and the jacking device can be easily performed only by the lifting and loading and unloading of the relatively light jacking lever side. High setting Degree change.
此外，在前述千斤頂高度變更步驟使用之前述保持手段亦可為以突出於前述外槽之側壁之方式所設置之保持構件。Further, the holding means used in the step of changing the height of the jack may be a holding member provided to protrude from the side wall of the outer groove.
依據此構成，可依簡單的構成來保持儲槽構成構件且進行頂起裝置之設置高度的變更。According to this configuration, the storage tank member can be held in a simple configuration and the installation height of the jacking device can be changed.
再者，在前述內側壁安裝步驟中，亦可將複數個前述內槽側板彼此在儲槽外預先連結在橫方向，且將此內槽側板引進到內外槽間而形成為環狀。Further, in the inner wall mounting step, a plurality of the inner groove side plates may be previously connected to each other outside the storage tank in the lateral direction, and the inner groove side plate may be introduced into the inner and outer grooves to form an annular shape.
依據此構成，可將複數個內槽側板彼此的連結，在作業空間之制限少的儲槽外進行，且有效地建構內槽。According to this configuration, the plurality of inner groove side plates can be connected to each other outside the storage tank having a small space for the work space, and the inner groove can be effectively constructed.
此外，前述儲槽構成構件亦可包含前述內槽屋頂以及組裝在前述內槽屋頂上之外槽屋頂。Further, the tank constituting member may include the inner tank roof and the tank roof assembled on the inner tank roof.
依據本發明，在以成為一體的方式安裝有內槽屋頂與外槽屋頂之狀態下頂起儲槽構成構件時，上述合計重量亦不會施加在內槽側板，而可透過較具有強度(板厚)之折角部來頂起儲槽構成構件。因此，尤其將最上段的內槽側板之強度(板厚)設計為支撐內槽屋頂的重量之程度，亦可消除此內槽側板壓曲之疑慮，而可謀求最適當的設計之儲槽的輕量化及成本降低。According to the present invention, when the sump forming member is pushed up in a state in which the inner groove roof and the outer groove roof are integrally attached, the total weight is not applied to the inner groove side plate, and the permeable member has a stronger strength (plate The thicker corner portion of the thicker portion is used to lift up the storage tank constituting member. Therefore, in particular, the strength (plate thickness) of the uppermost inner groove side plate is designed to support the weight of the inner groove roof, and the doubt that the inner groove side plate buckling can be eliminated, and the most suitable design of the storage groove can be sought. Light weight and cost reduction.
此外，藉由在內槽屋頂之外周緣部將被吊裝側千斤頂支架安裝在向下方彎曲之折角部，即使在強度上被吊裝側千斤頂支架成為大型之情況下，亦與將此支架配置在內外 槽側壁間之較狹窄的空間之情形相比較，變得更容易確保對於外槽的側壁之空隙，故可有效率地進行頂起作業。In addition, by attaching the hoisted side jack bracket to the folded corner portion bent downward at the outer peripheral portion of the inner tank roof, even if the hoisting side jack bracket is large in strength, the bracket is disposed inside and outside. As compared with the case of the narrow space between the side walls of the groove, it becomes easier to secure the gap with the side wall of the outer groove, so that the jacking operation can be efficiently performed.
並且，將外槽之側壁組裝到某些程度之高度後，於安裝在此側壁之吊裝側千斤頂支架與安裝在內槽的折角部之被吊裝側千斤頂支架之間設置頂起裝置，且一邊利用此頂起裝置將安裝在內槽屋頂之內槽側板與外槽屋頂及內槽屋頂一起予以頂起，且一邊可於形成在該下方之空間進行下一個內槽側板的安裝，故相對於以直立方式將千斤頂支架設置於外槽底部之習知技術，可消除內外槽的組裝作業與外槽底部的保冷作業之干擾而可謀求縮短工期。Moreover, after assembling the side wall of the outer groove to a certain height, a lifting device is disposed between the lifting side jack bracket mounted on the side wall and the hoisted side jack bracket installed at the corner of the inner groove, and the side is utilized The jacking device is mounted on the inner side of the inner trough roof together with the outer trough roof and the inner trough roof, and one side can be installed in the space below the lower inner side panel, so The conventional technique of arranging the jack bracket at the bottom of the outer tank in an upright manner can eliminate the interference between the assembly work of the inner and outer tanks and the cold storage operation at the bottom of the outer tank, and can shorten the construction period.
以下，參照圖式就本發明的圓筒型儲槽之構築方法加以說明。在以下的說明中，作為圓筒型儲槽，將儲藏LNG之地上型的PC(預力混凝土)雙重殼貯槽予以例示。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.
首先，如第1圖所示，進行大致圓板狀的基礎底板(外槽的底部)1之施工。在基礎底板1之外周緣部，以直立方式將組裝後述的PC壁(外槽的側壁)2之基礎部3予以設置。此外，沿著基礎部3的內側設置內槽錨定帶4。First, as shown in Fig. 1, the construction of a substantially circular base floor (bottom of the outer tank) 1 is performed. The base portion 3 of the PC wall (the side wall of the outer groove) 2 to be described later is assembled in an upright portion on the outer peripheral portion of the base plate 1. Further, an inner groove anchoring band 4 is provided along the inner side of the base portion 3.
其次，如第2A圖所示，在基礎底板1上組裝側襯板(外槽側板)5。此外，側襯板5兼具混凝土模框。側襯板5通常係板厚為6mm左右的鋼材，而在本實施形態中將板厚設為10mm左右或設為提高強度的補強材料，來提高強度。Next, as shown in Fig. 2A, a side lining plate (outer groove side plate) 5 is assembled on the base plate 1. In addition, the side liner 5 has a concrete formwork. The side lining plate 5 is usually a steel material having a plate thickness of about 6 mm, and in the present embodiment, the reinforcing material is set to have a thickness of about 10 mm or a reinforcing material to improve the strength.
側襯板5係沿著基礎部3之內側而組裝。此時，如第2B圖所示，在基礎部3的基端部設置嵌入板6，且於該嵌 入板6上安裝側襯板5。The side lining plate 5 is assembled along the inner side of the base portion 3. At this time, as shown in FIG. 2B, the inserting plate 6 is provided at the base end portion of the base portion 3, and A side liner 5 is mounted on the inlet plate 6.
再者，如第2A圖所示，在基礎底板1上敷設底部襯板7。此時，如第2B圖所示，底部襯板7的緣部係重疊敷設在嵌入板6上。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.
其次，如第3圖所示，復組裝側襯板5。此外，沿著側襯板5的基端部內側將內槽側板組裝用的臨時支架8予以設置。Next, as shown in Fig. 3, the side liner 5 is assembled. Further, a temporary bracket 8 for assembling the inner groove side plates is provided along the inner side of the base end portion of the side lining plate 5.
然後，如第4圖所示，按順序從最下段者到最上段者組裝側襯板5。此外，在此，將側襯板5組裝到例如第4段為止。Then, as shown in Fig. 4, the side liner 5 is assembled in order from the lowermost portion to the uppermost portion. Further, here, the side lining plate 5 is assembled to, for example, the fourth stage.
其次，如第5圖所示，首先到第4段為止沿著所組裝的側襯板5，按順序從最下段者到最上段者例如以與側襯板5相同數目之程度(在圖中為到第4段為止)將PC壁2予以澆鑄且組裝在基礎部3上。Next, as shown in Fig. 5, firstly, along the assembled side lining 5, in order from the lowermost one to the uppermost one, for example, to the same number as the side lining 5 (in the figure) The PC wall 2 is cast and assembled to the base portion 3 up to the fourth step.
此外，藉由以直立方式沿著儲槽周圍方向將複數個內槽側板(亦為內槽的側壁)9設置在臨時支架8上，且以成為一體的方式將上述各內槽側板9之鄰接者彼此予以焊接，而將上述各內槽側板9組裝為環狀。此外，在此組裝之內槽側板9係對應最上段(在本實施形態中為第9段)。內槽側板9係由具備較佳的韌性與強度之Ni鋼材所形成。Further, a plurality of inner groove side plates (also side walls of the inner grooves) 9 are disposed on the temporary support 8 in an upright manner along the circumference of the storage tank, and the adjacent inner groove side plates 9 are adjacent to each other in an integrated manner. The inner groove side plates 9 are assembled into a ring shape by welding to each other. Further, the inner side groove plate 9 assembled in this case corresponds to 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.
其次，如第6圖所示，在基礎底板1的中央部組裝屋頂支架10。此外，在最上段之內槽側板9的上端部裝配折角板(折角部)11。再者，乘坐高處作業車12進入到基礎底板1。此外，在臨時支架8下，將珍珠岩混凝土塊與構造 用輕量混凝土塊等之環狀部13的構成構件予以臨時設置。此外，最上段之內槽側板9的安裝作業亦可在後述之頂起作業後進行(亦即，在組裝內槽側板9之前先組裝折角板11)。Next, as shown in Fig. 6, the roof bracket 10 is assembled at the center portion of the base plate 1. Further, a chamfered plate (corner portion) 11 is attached to the upper end portion of the groove side plate 9 in the uppermost stage. Furthermore, the high-level work vehicle 12 is taken into the base floor 1. In addition, under the temporary support 8, the perlite concrete block and structure The constituent members of the annular portion 13 such as a lightweight concrete block are temporarily provided. Further, the installation work of the inner side groove side plate 9 of the uppermost stage can also be performed after the jacking operation to be described later (that is, the angled plate 11 is assembled before the inner groove side plate 9 is assembled).
其次，如第7圖所示，在屋頂支架10上裝載內槽屋頂塊，且組裝內槽屋頂14。此外，在內槽屋頂14之外周緣部，透過折角板11將最上段的內槽側板9予以安裝。折角板11係在內槽屋頂14之外周緣部以朝下方彎曲之方式形成，且將該下端緣部連接在最上段之內槽側板9的上端緣部。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 outer peripheral side plate 9 of the uppermost stage is attached to the outer peripheral portion of the inner tank roof 14 through the corner plate 11. The angled plate 11 is formed to be bent downward at the outer peripheral portion of the inner tank roof 14, and the lower end portion is connected to the upper end edge portion of the innermost groove side plate 9 of the uppermost stage.
其次，在比基礎版1更上方，而在內外槽間(PC壁2與內槽側板9之間)15，首先在所組裝的PC壁2之內周面之比折角板11更離開上方之部位，於儲槽周圍方向設置複數個吊裝側千斤頂支架16。各吊裝側千斤頂支架16係以從預定高度之PC壁2朝儲槽內側大致水平地突出之方式設置。各吊裝側千斤頂支架16例如係以牢固且可裝卸之方式緊固在埋入到PC壁2之錨定板等。Next, above the base plate 1, and between the inner and outer grooves (between the PC wall 2 and the inner groove side plate 9) 15, first, the inner circumferential surface of the assembled PC wall 2 is further away from the angled plate 11 At the location, a plurality of lifting side jack brackets 16 are disposed in the direction around the storage tank. Each of the hoisting side jack brackets 16 is provided to protrude substantially horizontally from the PC wall 2 of a predetermined height toward the inside of the sump. Each of the hoisting side jack brackets 16 is fastened to the anchoring plate or the like embedded in the PC wall 2, for example, in a secure and detachable manner.
此外，在折角板11之彎曲外周面，將對應各吊裝側千斤頂支架16之複數個被吊裝側千斤頂支架21予以設置。各被吊裝側千斤頂支架21係以從折角板11之彎曲外周面朝內外槽間15大致水平地突出之方式予以設置。各被吊裝側千斤頂支架21係以可裝卸之方式固定在折角板11。Further, a plurality of hoisted side jack brackets 21 corresponding to the respective lifting side jack brackets 16 are provided on the curved outer peripheral surface of the gusset plate 11. Each of the suspended side jack brackets 21 is provided so as to protrude substantially horizontally from the curved outer peripheral surface of the corner plate 11 toward the inner and outer groove portions 15. Each of the hoisted side jack brackets 21 is detachably fixed to the gusset plate 11.
然後，以組裝內槽屋頂14後之任意的時序，如第8圖所示，在內槽屋頂14上組裝外槽屋頂17。外槽屋頂17 係一邊以內槽屋頂14與未圖示之連結材料予以連結，且一邊以成一體之方式與內槽屋頂14一同組裝。Then, as shown in Fig. 8, the outer tank roof 17 is assembled on the inner tank roof 14 at any timing after the inner tank roof 14 is assembled. Outer trough roof 17 The inner tank roof 14 is connected to a connecting material (not shown) and assembled together with the inner tank roof 14 in an integrated manner.
此外，復將側襯板5予以組裝，同時在側襯板5之外側設置單腳施工架(施工架)18，且持續進行PC壁2之澆鑄。PC壁2的澆鑄係不利用如習知的雙腳施工架而可利用單腳施工架18來進行。Further, the side liner 5 is assembled, and a one-leg construction frame (construction frame) 18 is provided on the outer side of the side liner 5, and the casting of the PC wall 2 is continued. The casting of the PC wall 2 can be carried out using a single-leg construction frame 18 without the use of a conventional two-leg construction frame.
藉由利用單腳施工架18進行PC壁2的澆鑄，可避免在側襯板5之內周側(內外槽間15)進行之後述的頂起作業時之單腳施工架18與其他零件之干擾。再者，亦可將前述作業，與後述的各屋頂14,17之組裝的頂起作業一併來進行。By casting the PC wall 2 by the one-legged construction frame 18, it is possible to avoid the one-legged construction frame 18 and other parts when the inner peripheral side (the inner and outer grooved spaces 15) of the side lining plate 5 is subjected to the jacking operation described later. interference. Further, the above-described work may be performed together with the jacking operation of assembling the roofs 14, 17 which will be described later.
其次，如第9圖所示，跨越各吊裝側千斤頂支架16與對應上述支架之各被吊裝側千斤頂支架21之間，來分別設置頂起裝置19。Next, as shown in Fig. 9, a jacking device 19 is provided between each of the hoisting side jack brackets 16 and each of the hoisted side jack brackets 21 corresponding to the brackets.
以下，一邊一併參照第10圖，一邊就本發明的實施形態之圓筒型儲槽的構築方法加以說明。各頂起裝置19例如係構成為穿心式千斤頂，其具有圓筒狀的千斤頂本體19a與頂起桿20，其中，圓筒狀的千斤頂本體19a係懸掛在被吊裝側千斤頂支架21的下方，而頂起桿20係延伸於上下且以可供千斤頂本體19a沿著頂起桿20移動之方式被保持在千斤頂本體19a，並且透過平衡桿20a使上端部卡合於吊裝側千斤頂支架16。然後，藉由使千斤頂本體19a進行正轉驅動，而以沿著頂起桿20之方式使此千斤頂本體19a與被吊裝側千斤頂支架21一起上升，而將組裝過程中之儲槽構成構件予以頂起。Hereinafter, a method of constructing a cylindrical storage tank according to an embodiment of the present invention will be described with reference to FIG. Each of the jacking devices 19 is configured, for example, as a feed-through jack having a cylindrical jack body 19a and a jacking rod 20, wherein the cylindrical jack body 19a is suspended below the suspended side jack bracket 21, The jacking rod 20 extends up and down and is held by the jack body 19a so that the jack body 19a moves along the jacking rod 20, and the upper end portion is engaged with the lifting side jack bracket 16 through the balance bar 20a. Then, by causing the jack body 19a to be driven in the forward direction, the jack body 19a is raised together with the hoisted side jack bracket 21 along the jacking rod 20, and the tank constituting member in the assembly process is topped. Start.
此外，如第9圖所示在去除屋頂支架10之狀態下，利用各頂起裝置19將內槽屋頂14及外槽屋頂17之重量的一部分或全部予以支撐。此係藉由內槽側板9之最適當的設計，來消除該壓曲的疑慮之故。亦即，下段側之內槽側板9係對應儲槽完成後之內裝液體較大的液壓來加厚板厚，而上段側(尤其是最上段)之內槽側板9係對應內裝液體較小的液壓而使板厚變薄之故。Further, as shown in Fig. 9, in a state where the roof bracket 10 is removed, part or all of the weights of the inner tank roof 14 and the outer tank roof 17 are supported by the respective jacking devices 19. This is due to the most appropriate design of the inner groove side plates 9, to eliminate the doubt of the buckling. That is, the inner groove side plate 9 on the lower side corresponds to a larger hydraulic pressure of the inner liquid after the completion of the storage tank to thicken the plate thickness, and the inner side groove 9 of the upper side (especially the uppermost one) corresponds to the inner liquid. The small hydraulic pressure makes the thickness of the board thin.
如於第11B圖顯示一部分，各頂起裝置19係於儲槽周圍方向隔著預定間隔(例如等間隔)設置複數個。此外，對應上述各頂起裝置19，亦在儲槽周圍方向隔著預定間隔設置有複數個各吊裝側千斤頂支架16及各被吊裝側千斤頂支架21。As shown in Fig. 11B, each of the jacking devices 19 is provided in a plurality of predetermined intervals (e.g., at equal intervals) in the direction around the reservoir. Further, in correspondence with each of the jacking devices 19, a plurality of hoisting side jack brackets 16 and hoisting side jack brackets 21 are provided at predetermined intervals in the direction around the sump.
在鄰接的頂起裝置19之間，復設置被吊裝側千斤頂支架21。在本實施形態中，各被吊裝側千斤頂支架21係在儲槽周圍方向以頂起裝置19的1/2左右之間距而設置。以下，亦有將位於鄰接的頂起裝置19間之被吊裝側千斤頂支架21稱為千斤頂間支架21之情形。Between the adjacent jacking devices 19, the hoisting side jack bracket 21 is placed. In the present embodiment, each of the suspended side jack brackets 21 is provided at a distance of about 1/2 of the jacking device 19 in the direction around the reservoir. Hereinafter, the hoisted side jack bracket 21 located between the adjacent jacking devices 19 is also referred to as the inter-jack bracket 21.
在各千斤頂間支架21之上升軌跡上分別設置有保持支架23，其係每對應頂起桿20的1衝程之程度(在本實施形態中相當於內槽側板9單體之上下寬度)時，將各千斤頂間支架21予以支撐且可接收朝垂直方向下方之荷重(組裝過程中的儲槽構成構件(外槽屋頂17、內槽屋頂14、折角板11及內槽側板9等)之重量)。A holding bracket 23 is provided on each of the rising trajectories of the inter-jack brackets 21, which is a degree of one stroke per corresponding jacking rod 20 (corresponding to the upper and lower widths of the inner-groove side panel 9 in this embodiment). Each of the jack brackets 21 is supported and can receive the load in the vertical direction (the weight of the tank constituting members (the outer tank roof 17, the inner tank roof 14, the angled plate 11 and the inner groove side plate 9, etc.) in the assembly process) .
各保持支架23係各別由一對保持構件所構成，該保 持構件係具有可供對應之千斤頂間支架21上下地通過之間隙且在儲槽周圍方向排列。各保持支架23(保持構件)係與各吊裝側千斤頂支架16相同，以從預定高度的PC壁2朝儲槽內側大致水平地突出之方式設置。Each of the holding brackets 23 is composed of a pair of holding members, respectively. The holding member has a gap through which the corresponding inter-jack bracket 21 passes up and down and is arranged in the direction around the storage tank. Each of the holding brackets 23 (holding members) is provided so as to protrude substantially horizontally from the PC wall 2 of a predetermined height toward the inside of the storage tank, similarly to the respective lifting side jack brackets 16.
被吊裝側千斤頂支架21及折角板11係從將最上段的內槽側板9支撐在臨時支架8上之下限位置階段性上升，且依第2段、第3段…之順序可將內槽側板9安裝在最上段的內槽側板9之下方。本實施形態之各段的側板安裝作業位置係依被吊裝側千斤頂支架21及折角板11對應於頂起桿20的1衝程之程度上升而規定。The hoisted side jack bracket 21 and the gusset plate 11 are stepped up from the lower limit position of the uppermost inner groove side plate 9 supported on the temporary bracket 8, and the inner groove side plate can be arranged in the order of the second stage, the third stage... 9 is installed below the innermost side panel 9 of the uppermost section. The side plate mounting work position of each of the stages of the present embodiment is defined by the degree to which the hoisting-side jack bracket 21 and the gusset plate 11 rise in accordance with the one stroke of the jacking rod 20.
各千斤頂間支架21係於上升到各段之側板組裝作業位置時，通過對應之保持支架23的各保持構件間之間隙而到達其上方。之後，藉由跨越各保持支架23之一對保持構件的上表面來配置保持塊B，且將對應此保持塊B上之千斤頂間支架21予以載置，而可承受在各保持支架23將組裝過程中之儲槽構成構件的重量。When the jacks 21 are raised to the side panel assembly work positions of the respective stages, they are reached above by the gap between the respective holding members of the holding brackets 23. Thereafter, the holding block B is disposed by arranging the upper surface of the holding member across one of the holding brackets 23, and the inter-jack bracket 21 corresponding to the holding block B is placed, and the assembly can be withstood in each holding bracket 23. The reservoir in the process constitutes the weight of the component.
在此狀態下，藉由將各吊裝側千斤頂支架16之對於PC壁2的固定予以解除，且使各頂起裝置19a進行反轉驅動，而以使各頂起桿20及各吊裝側千斤頂支架16上升達前述1衝程之程度。之後，藉由使用設置在PC壁2之對應的位置之錨定板等，再次以可裝卸之方式將各吊裝側千斤頂支架16固定在PC壁2。此外，使各頂起桿20及各吊裝側千斤頂支架16上升之手法，不限定於前述反轉驅動，視情況亦可用別的懸吊裝置來實施。In this state, the lifting of the lifting wall jacks 16 for the PC wall 2 is released, and the jacking devices 19a are driven in reverse, so that the jacking rods 20 and the lifting side jack brackets are provided. 16 rises to the extent of the aforementioned 1 stroke. Thereafter, each of the ceiling-mounted jack brackets 16 is detachably fixed to the PC wall 2 by using an anchoring plate or the like provided at a corresponding position of the PC wall 2. Further, the method of raising the jacking rods 20 and the lifting side jack brackets 16 is not limited to the above-described reverse driving, and may be carried out by another suspension device as the case may be.
如第14圖所示，被吊裝側千斤頂支架21及折角板11位於各段之前述側板組裝作業位置時，從設置在PC壁2的下段之施工口(開口部)29依序將內槽側板9配送到內外槽間15。於施工口29之外側係連接有由導軌31及觸輪(trolley)32所構成之搬運裝置30。As shown in Fig. 14, when the hoisting side jack bracket 21 and the gusset plate 11 are located at the side panel assembly work positions of the respective stages, the inner groove side plates are sequentially arranged from the construction opening (opening) 29 provided in the lower stage of the PC wall 2. 9 is delivered to the inner and outer slots 15. A conveying device 30 composed of a guide rail 31 and a trolley 32 is connected to the outside of the construction port 29.
搬運裝置30之導軌31係以沿著儲槽周圍方向(切線方向)之方式延伸，而沿著此導軌31被搬入到內外構間15之內槽側板9，係透過在內外槽間15具有沿著儲槽周圍方向而延伸之環狀的導軌之第二搬運裝置(皆未圖示)，而在儲槽周圍方向被搬運到預定位置。將此內槽側板9卸下到臨時支架8上，且在被頂起之內層側板9的下方配置成環狀。The guide rails 31 of the transporting device 30 extend along the direction around the storage tank (tangential direction), and are carried along the guide rails 31 into the inner side of the inner and outer compartments 15 and are passed through the inner and outer slots 15 A second conveying device (not shown) of the annular guide rail extending in the direction around the storage tank is conveyed to a predetermined position in the direction around the storage tank. The inner groove side plate 9 is detached to the temporary holder 8, and is disposed in a ring shape below the inner layer side plate 9 that is pushed up.
如此藉由將配置成環狀之複數個內槽側板9彼此予以焊接，且將排列成上下之內槽側板9彼此予以焊接，而將上述各內槽側壁形成為一體的圓筒狀。此外，亦可將複數個內槽側板9彼此在儲槽外預先連結在橫方向，且將此引進到內外槽間15形成為環狀後，將排列成上下之內槽側板9彼此予以焊接。Thus, the plurality of inner groove side plates 9 arranged in a ring shape are welded to each other, and the inner groove side plates 9 arranged in the upper and lower sides are welded to each other, and the inner groove side walls are formed into a single cylindrical shape. Further, a plurality of the inner groove side plates 9 may be previously connected to each other outside the storage tank in the lateral direction, and the inner and outer groove portions 15 may be introduced into a ring shape, and the inner groove side plates 9 arranged in the upper and lower directions may be welded to each other.
此後，如第11A圖所示藉由使頂起裝置19進行作動且使各被吊裝側千斤頂支架21及折角板11上升達前述1衝程之程度，而可重新將應組裝之內槽側板9搬入到內外槽間15且將該內外槽間15安裝到已組裝好的內槽側板9之下方，且如第12,13圖所示可將吊裝側千斤頂支架16移設到上方位置。Thereafter, as shown in FIG. 11A, by moving the jacking device 19 and raising each of the hoisting side jack brackets 21 and the gusset plate 11 by the first stroke, the inner groove side plate 9 to be assembled can be reloaded. The inner and outer groove portions 15 are attached to the assembled inner groove side plates 9 and the hoisting side jack brackets 16 can be moved to the upper position as shown in Figs.
在上述步驟中，如第15圖所示，在基礎底板1上，進行環狀部13之保冷施工及中央部之保冷施工。中央部之保冷施工係藉由於敷設在基礎底板1之底部襯板7上，積層保冷材料33，更詳細而言，藉由按照順序將底部抗冷熱緩衝材料、泡沫玻璃、輕量氣泡混凝土等予以積層來進行。再者，環狀部13之保冷施工係藉由在臨時支架8下，將珍珠岩混凝土塊與構造用輕量混凝土塊進行組裝，且在其上安裝環狀板來進行。In the above-described steps, as shown in Fig. 15, the cold storage construction of the annular portion 13 and the cold preservation construction at the center portion are performed on the base plate 1. The cold-storing 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, and 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.
再者，在此步驟中，一邊設置單腳施工架18，一邊組裝PC壁2到最上段。此外，此步驟中，將防火階梯34設置在PC壁2之外部。再者，此步驟中，將屋頂階梯35、珍珠岩人孔36與內外槽屋頂人孔37等設置在外槽屋頂17。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.
其次，如第16圖所示，到內槽側板9的最下段為止之安裝結束時，撤除臨時支架8，且將內槽側板9之最下段的下端部卸下到環狀部13上，且安裝於設置在基礎底板1之內槽錨定帶4。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 Mounted in the slot anchoring strap 4 disposed in the base plate 1.
再者，與內槽屋頂14一起被頂起之外槽屋頂17，係將利用前述連結材料所進行之連結予以解除後，透過未圖示之折角板安裝在組裝到最上段為止之PC壁2的上端部。而在最上段之PC壁2上，係將用以使外槽屋頂17上升到安裝高度之臨時支架(未圖示)予以預先設置。Further, the groove roof 17 which is lifted up together with the inner tank roof 14 is released by the connection by the above-mentioned connecting material, and then attached to the PC wall 2 assembled to the uppermost stage by a chamfering plate (not shown). The upper end. On the PC wall 2 of the uppermost stage, a temporary bracket (not shown) for raising the outer tank roof 17 to the mounting height is provided in advance.
然後，將前述臨時支架、各千斤頂用支架16,21及頂起裝置19等予以撤除。Then, the temporary bracket, the jack brackets 16, 21, the jacking device 19, and the like are removed.
在此，在參照前述第15圖所作說明之步驟中，如第17A圖所示，敷設內槽底板38。藉此方式，結束底部的保冷施工。此外，在第17B圖中，符號1表示基礎底板，符號7表示底部襯板，符號38表示內槽底板，符號39表示底部抗冷熱緩衝材料，符號40表示泡沫玻璃，符號41表示輕量氣泡混凝土，符號41A及41B表示珍珠岩混凝土塊，符號42表示構造用輕量混凝土塊，符號43表示環狀板。Here, in the step described with reference to the above-mentioned Fig. 15, the inner tank bottom plate 38 is laid as shown in Fig. 17A. In this way, the cold insulation construction at the bottom is ended. Further, in Fig. 17B, reference numeral 1 denotes a base plate, reference numeral 7 denotes a bottom liner, reference numeral 38 denotes an inner groove bottom plate, reference numeral 39 denotes a bottom heat-resistant cushioning material, reference numeral 40 denotes a foam glass, and reference numeral 41 denotes a lightweight bubble concrete. Symbols 41A and 41B denote perlite concrete blocks, reference numeral 42 denotes a lightweight concrete block for construction, and reference numeral 43 denotes an annular plate.
之後，進行PC壁2之預應力施工。然後，於關閉未圖示之內槽施工口，且設置未圖示之泵筒後，進行充水且實施耐壓/氣密試驗。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.
最後，如第18圖所示，填充保冷材料44(例如珍珠岩)到內外槽間15來進行內外槽間保冷施工，之後，經過塗抹施工、配管保冷施工後建構圓筒型儲槽100。Finally, as shown in Fig. 18, the cold-preserving material 44 (for example, perlite) is filled into the inner and outer tanks 15 to carry out cold-insulation between the inner and outer tanks, and then the cylindrical tank 100 is constructed after the smear-coating and piping cooling construction.
第19圖係表示本發明實施形態之圓筒型儲槽之構築方法之整體的流程圖。此外，在第19圖中，附加有艙口之步驟(基礎、PC壁、側部PUF(PUF：polyurethane foam，聚氨酯泡沫塑料)係土木工程建設事業者所進行之步驟。如第19圖所示，藉由完成基礎施工後，先進行襯板(側襯板5)施工後進行PC壁施工，且在建構PC壁中，進行屋頂、內槽、底板之施工，而可大幅地縮短工期。Fig. 19 is a flow chart showing the entire construction method of the cylindrical storage tank according to the embodiment of the present invention. In addition, in the 19th figure, the steps of the hatch (the base, the PC wall, and the PUF (polyurethane foam)) are performed by the civil engineering construction business. 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 bottom plate is carried out in the construction of the PC wall, and the construction period can be greatly shortened.
如以上說明，前述本實施形態係具有金屬製之內槽與混凝土製的外槽之圓筒型儲槽100的構築方法，且具有：外側壁組裝步驟，係在前述外槽底部(基礎版1)上，在前述內槽的側壁(內槽側板9)之前先將前述外槽的側壁(PC 壁2)按順序從最下段者到上段側者予以組裝；折角組裝步驟，係在前述外槽底部上，至少將內槽屋頂14的外周緣部之以朝下方彎曲之方式形成之折角板11予以組裝；吊裝側支架組裝步驟，係在前述外側壁組裝步驟所組裝之前述外槽的側壁之位於比前述折角板11更上方之部位，將吊裝側千斤頂支架16予以安裝；被吊裝側支架安裝步驟，係將被吊裝側千斤頂支架21安裝在前述折角板11；千斤頂設置步驟，係將使包含前述折角板11的儲槽構成構件上升之頂起裝置19，跨越前述各千斤頂支架間16,21來予以設置；以及內側壁安裝步驟，係利用前述頂起裝置19一邊使前述儲槽構成構件階段性地上升，一邊將內槽側板9按順序從最上段者到下段側者安裝在前述折角板11的下方。As described above, the present embodiment is a method of constructing a cylindrical storage tank 100 having an inner tank made of metal and an outer tank made of concrete, and has an outer side wall assembling step which is attached to the bottom of the outer tank (basic version 1) The upper side wall of the outer groove (PC) before the side wall of the inner groove (the inner groove side plate 9) The wall 2) is assembled in order from the lowermost part to the upper side; the folding angle assembling step is formed on the bottom of the outer groove, and at least the outer peripheral edge portion of the inner groove roof 14 is bent downward to form a angled plate 11 The assembly process of the hoisting side bracket is such that the side wall of the outer groove assembled by the outer side wall assembly step is located above the angled plate 11 to mount the hoisting side jack bracket 16; In the step, the hoisting side jack bracket 21 is mounted on the gusset plate 11; the jack setting step is to raise the hoisting device 19 including the gusset plate 11 of the gusset plate 11 across the aforementioned jack brackets 16, 21 And the inner side wall mounting step is performed by the above-described lifting device 19, and the inner groove side plate 9 is sequentially mounted from the uppermost one to the lower side in the order of the above-mentioned gusset plate. Below the 11th.
依據此構成，在以成為一體的方式將內槽屋頂14與外構屋頂17予以組裝之狀態下頂起儲槽構成構件時，上述合計重量亦不會施加在內槽側板9，而可透過較具有強度(板厚)之折角板11來頂起儲槽構成構件。因此，尤其是將最上段的內槽側板9之強度(板厚)設計為支撐內槽屋頂14的重量之程度，亦可消除此內槽側板9壓曲的疑慮，且可透過最佳設計來謀求輕量化及成本降低。According to this configuration, when the sump constituting member is pushed up in a state in which the inner tank roof 14 and the outer roof 17 are assembled in an integrated manner, the total weight is not applied to the inner tank side plate 9, and the permeable is relatively high. A chamfered plate 11 having strength (plate thickness) is used to lift up the sump forming member. Therefore, in particular, the strength (plate thickness) of the uppermost inner groove side plate 9 is designed to support the weight of the inner groove roof 14, and the doubt that the inner groove side plate 9 is buckling can be eliminated, and the optimum design can be adopted. Seeking weight reduction and cost reduction.
再者，藉由在內槽屋頂14之外周緣部將被吊裝側千斤頂支架21安裝在向下方彎曲之折角板11，使得在強度上即使被吊裝側千斤頂支架21成為大型時，與將該支架21配置在內外槽側壁間之較狹窄的空間之情況相比較，亦容易確保對於外槽的側壁之空隙，故可有效率地進行頂起 作業。Further, the hoisting side jack bracket 21 is attached to the gusset plate 11 bent downward by the outer peripheral portion of the inner tank roof 14, so that even if the hoisting side jack bracket 21 becomes large in strength, the bracket is Compared with the case where the 21 is disposed in a narrow space between the side walls of the inner and outer grooves, it is easy to ensure the gap with the side wall of the outer groove, so that the jacking can be efficiently performed. operation.
並且，將外槽之側壁組裝到某種程度的高度後，且在安裝在此側壁之吊裝側千斤頂支架16與安裝在內槽的折角板11之被吊裝側千斤頂支架21之間設置頂起裝置19，並利用此頂起裝置19一邊將安裝在內槽屋頂14之內槽側板9與外槽屋頂17及內漕屋頂14一起予以頂起，且可一邊於形成在該下方之空間進行下一個內槽側板9的安裝，故相對於以直立方式將千斤頂支架設置於外槽底部之習知技術，可消除內外槽的組裝作業與外槽底部的保冷作業之干擾而可謀求工期之縮短。And, after assembling the side wall of the outer groove to a certain height, and providing a jacking device between the lifting side jack bracket 16 mounted on the side wall and the hoisted side jack bracket 21 of the angled plate 11 installed in the inner groove 19, and using the jacking device 19, the groove side panel 9 installed in the inner tank roof 14 is lifted together with the outer tank roof 17 and the inner roof 14 and can be next to the space formed in the lower space. Since the inner groove side plate 9 is attached, the conventional technique of arranging the jack bracket on the bottom of the outer groove in an upright manner can eliminate the interference between the assembly work of the inner and outer grooves and the cold storage operation at the bottom of the outer groove, and can shorten the construction period.
此外，本實施形態的圓筒型儲槽之構築方法具有千斤頂高度變更步驟，該步驟係在前述內側壁安裝步驟中使前述儲槽構成構件上升到預定高度後，在利用設置在前述外槽的側壁之保持手段(保持支架23)將此儲槽構成構件保持在前述預定高度之狀態下，將前述頂起裝置19的設置高度予以變更。Further, the method of constructing the cylindrical storage tank according to the present embodiment includes a step of changing the height of the jack, wherein the step of raising the storage tank constituent member to a predetermined height in the inner wall mounting step is performed by using the outer tank The side wall holding means (holding bracket 23) changes the installation height of the jacking means 19 while maintaining the tank constituting member at the predetermined height.
依據此構成，藉由交替重複內側壁安裝步驟與千斤頂高度變更步驟，即使為小型的頂起裝置19亦可將內槽側板9組裝到所希望的高度。According to this configuration, the inner groove side plate 9 can be assembled to a desired height even by the small jacking device 19 by alternately repeating the inner wall mounting step and the jack height changing step.
此外，在本實施形態的圓筒型儲槽之構築方法中，前述頂起裝置19a具有頂起桿20及千斤頂本體19a，千斤頂本體19a係藉由作動而沿著頂起桿20移動，且將前述千斤頂本體19a支撐在前述被吊裝側千斤頂支架21，同時將前述頂起桿20卡合在前述吊裝側千斤頂支架16，且利用前述千斤頂本體19a之正轉驅 動，使此千斤頂本體19a以沿著前述頂起桿20之方式上升，且使前述被吊裝側千斤頂支架21及前述儲槽構成構件上升，另一方面在前述千斤頂高度變更步驟中將前述頂起裝置19之設置高度予以變更時，從前述外槽之側壁將前述吊裝側千斤頂支架16予以拆卸，並利用前述千斤頂本體19a之反轉驅動而使前述吊裝側千斤頂支架16與前述頂起桿20一起上升後，再次將前述吊裝側千斤頂支架16安裝在前述外槽之側壁。Further, in the method of constructing the cylindrical storage tank of the present embodiment, the jacking device 19a has a jacking rod 20 and a jack body 19a, and the jack body 19a is moved along the jacking rod 20 by actuation, and The jack body 19a is supported by the hoisting side jack bracket 21, and the jacking rod 20 is engaged with the hoisting side jack bracket 16 and is driven by the front of the jack body 19a. The jack body 19a is raised along the jacking rod 20, and the hoisted side jack bracket 21 and the sump forming member are raised, and the jacking is performed in the jack height changing step. When the installation height of the apparatus 19 is changed, the lifting side jack bracket 16 is detached from the side wall of the outer tank, and the lifting side jack bracket 16 is brought together with the jacking rod 20 by the reverse driving of the jack body 19a. After the rise, the lifting side jack bracket 16 is again mounted on the side wall of the outer groove.
依據此構成，於變更頂起裝置19之設置高度時，不需要進行比較重的千斤頂本體19a側的上升與裝卸，而僅藉由比較輕的頂起桿20側的上升與裝卸，即可容易地進行頂起裝置19之設置高度的變更。According to this configuration, when the height of the jacking device 19 is changed, it is not necessary to carry out the lifting and attaching and detaching of the relatively heavy jack body 19a side, and it is easy to lift and attach only by the relatively light jacking rod 20 side. The installation height of the jacking device 19 is changed.
此外，在本實施形態的圓筒型儲槽之構築方法中，在前述千斤頂高度變更步驟使用之前述保持手段(保持支架23)，係由以突出於前述外槽之側壁的方式設置之保持構件所構成。Further, in the method of constructing a cylindrical storage tank according to the present embodiment, the holding means (holding bracket 23) used in the step of changing the height of the jack is a holding member provided to protrude from the side wall of the outer tank. Composition.
依據此構成，以簡單的構成保持儲槽構成構件且可進行頂起裝置19的設置高度之變更。According to this configuration, the storage tank constituting member can be held in a simple configuration and the installation height of the jacking device 19 can be changed.
再者，在本實施形態的圓筒型儲槽之構築方法中，而於前述內側壁安裝步驟中，將複數個前述內槽側板9彼此在儲槽外預先連結在橫方向，且將之引進到內外槽間15而形成為環狀。Further, in the method of constructing the cylindrical storage tank of the present embodiment, in the inner wall mounting step, a plurality of the inner groove side plates 9 are previously connected to each other in the lateral direction outside the storage tank, and are introduced The inner and outer grooves 15 are formed in a ring shape.
依據此構成，可將複數個內槽側板9彼此的連結，在作業空間之制限少的儲槽外進行，而可有效率地建構內槽。According to this configuration, the plurality of inner groove side plates 9 can be connected to each other outside the storage tank having a small space for the work space, and the inner groove can be efficiently constructed.
此外，一邊參照圖示一邊就本發明之適當的實施形態作了說明，但本發明不限定於前述實施形態。在前述實施形態中所示之手段及各構成構件的諸形狀與組合等係為一例，而在不脫離本發明的主旨之範圍內，根據設計要求等可作種種變更。亦即，在前述實施形態中所示之各構成構件的諸形狀與組合等，在不脫離本發明的主旨之範圍內，可進行構成的附加、省略、替換及其他的變更。本發明不因前述說明而受到限定，而僅受附加的申請專利範圍之範圍所限定。Further, an appropriate embodiment of the present invention has been described with reference to the drawings, but the present invention is not limited to the above embodiment. The means and the combinations of the components and the components shown in the above-described embodiments are merely examples, and various modifications can be made depending on the design requirements and the like without departing from the gist of the invention. In addition, the shapes, combinations, and the like of the respective constituent members shown in the above-described embodiments may be added, omitted, replaced, and other modifications in the configuration without departing from the spirit and scope of the invention. The present invention is not limited by the foregoing description, but is only limited by the scope of the appended claims.
例如，在前述實施形態中，雖針對依各個頂起裝置19之1衝程規定側板組裝作業位置之事宜作了說明，但亦可在頂起裝置19之1衝程中將複數個側板組裝作業位置予以規定。For example, in the above-described embodiment, the position of the side plate assembly work is specified for each stroke of each of the jacking devices 19. However, a plurality of side plate assembly work positions may be provided in one stroke of the jacking device 19. Provisions.
再者，例如，在前述實施形態中，將承受儲槽構成構件的重量之保持支架23固設在PC壁2，亦可取代此保持支架23，針對頂起裝置19另外將設置高度不同之相同的頂起裝置予以設置，且在上述設置高度不同的頂起裝置間一邊將儲槽構成構件予以替換且一邊使之上升。Further, for example, in the above-described embodiment, the holding bracket 23 that receives the weight of the sump forming member is fixed to the PC wall 2, and instead of the holding bracket 23, the lifting device 19 may have the same height. The jacking device is provided, and the tank constituting member is replaced and raised while being arranged between the jacking devices having different heights.
依據本發明之圓筒型儲槽的構築方法，可使內槽側板的設計最適化，且提高儲槽構成構件之頂起的作業性，同時消除內外槽的組裝作業與外槽底部的保冷作業之干擾而可謀求工期之縮短。According to the construction method of the cylindrical storage tank of the present invention, the design of the inner groove side plate can be optimized, and the workability of the lifting member of the storage tank can be improved, and the assembly work of the inner and outer grooves and the cold operation of the bottom of the outer groove can be eliminated. The disturbance can be shortened.
1‧‧‧基礎底板(外槽底部)1‧‧‧Basic base plate (bottom of the outer groove)
2‧‧‧PC壁(外槽之側壁)2‧‧‧PC wall (side wall of outer groove)
3‧‧‧基礎部3‧‧‧Basic Department
4‧‧‧內槽錨定帶4‧‧‧Internal anchoring band
5‧‧‧側襯板(外槽側板)5‧‧‧Side liner (outer groove side panel)
6‧‧‧嵌入板6‧‧‧Insert board
7‧‧‧底部襯板7‧‧‧Bottom liner
8‧‧‧臨時支架8‧‧‧ Temporary stent
9‧‧‧曲槽側板(內槽的側壁)9‧‧‧ Curved side panel (side wall of inner groove)
10‧‧‧屋頂支架10‧‧‧Roof bracket
11‧‧‧折角板(折角部)11‧‧‧Folding board (corner part)
13‧‧‧環狀部13‧‧‧Rings
14‧‧‧內槽屋頂14‧‧‧Inch roof
16‧‧‧吊裝側千斤頂支架16‧‧‧ Lifting side jack bracket
17‧‧‧外槽屋頂17‧‧‧ outer trough roof
18‧‧‧單腳施工架(施工架)18‧‧‧One-legged construction frame (construction frame)
19‧‧‧頂起裝置19‧‧‧ jacking device
19a‧‧‧千斤頂本體19a‧‧‧ jack body
20‧‧‧頂起桿20‧‧‧Top rod
20a‧‧‧平衡桿20a‧‧‧Balance rod
21‧‧‧被吊裝側千斤頂支架21‧‧‧Hauled side jack bracket
23‧‧‧保持支架(保持手段)23‧‧‧Maintenance bracket (holding means)
29‧‧‧施工口(開口部)29‧‧‧ Construction port (opening)
30‧‧‧搬送裝置30‧‧‧Transporting device
31‧‧‧導軌31‧‧‧ rails
32‧‧‧觸輪32‧‧‧Touch wheel
34‧‧‧防火階梯34‧‧‧Fire ladder
35‧‧‧屋頂階梯35‧‧‧ Roof ladder
36‧‧‧珍珠岩人孔36‧‧‧Perlite Manhole
37‧‧‧內外槽屋頂人孔37‧‧‧Inner and outer trough roof manhole
38‧‧‧內槽底板38‧‧‧Inner trough bottom plate
39‧‧‧底部抗冷熱緩衝材料39‧‧‧Bottom anti-cold heat buffer material
40‧‧‧泡沫玻璃40‧‧‧foam glass
41‧‧‧輕量氣泡混凝土41‧‧‧Lightweight bubble concrete
41A、41B‧‧‧珍珠岩混凝土塊41A, 41B‧‧‧ Perlite concrete blocks
42‧‧‧構造用輕量混凝土塊42‧‧‧Lightweight concrete blocks for construction
43‧‧‧環狀板43‧‧‧ring plate
100‧‧‧圓筒型儲槽100‧‧‧Cylinder storage tank
第1圖係表示本發明實施形態之構築方法的第1步驟之垂直剖面圖。Fig. 1 is a vertical sectional view showing a first step of a method of constructing an embodiment of the present invention.
第2A圖係表示本發明實施形態之構築方法的第2步驟之垂直剖面圖。Fig. 2A is a vertical sectional view showing a second step of the construction method of the embodiment of the present invention.
第2B圖係第2A圖之A部放大圖。Fig. 2B is an enlarged view of a portion A of Fig. 2A.
第3圖係表示本發明實施形態之構築方法的第3步驟之垂直剖面圖。Fig. 3 is a vertical sectional view showing a third step of the construction method of the embodiment of the present invention.
第4圖係表示本發明實施形態之構築方法的第4步驟之垂直剖面圖。Fig. 4 is a vertical sectional view showing a fourth step of the construction method of the embodiment of the present invention.
第5圖係表示本發明實施形態之構築方法的第5步驟之垂直剖面圖。Fig. 5 is a vertical sectional view showing a fifth step of the construction method of the embodiment of the present invention.
第6圖係表示本發明實施形態之構築方法的第6步驟之垂直剖面圖。Fig. 6 is a vertical sectional view showing a sixth step of the construction method of the embodiment of the present invention.
第7圖係表示本發明實施形態之構築方法的第7步驟之垂直剖面圖。Fig. 7 is a vertical sectional view showing a seventh step of the construction method of the embodiment of the present invention.
第8圖係表示本發明實施形態之構築方法的第8步驟之垂直剖面圖。Fig. 8 is a vertical sectional view showing an eighth step of the construction method of the embodiment of the present invention.
第9圖係表示本發明實施形態之構築方法的第9步驟之垂直剖面圖。Fig. 9 is a vertical sectional view showing a ninth step of the construction method of the embodiment of the present invention.
第10圖係表示本發明實施形態之頂起裝置的垂直剖面圖。Fig. 10 is a vertical sectional view showing the jacking device of the embodiment of the present invention.
第11A圖係表示本發明實施形態之頂起作業的第一段階之垂直剖面圖。Fig. 11A is a vertical sectional view showing the first stage of the jacking operation of the embodiment of the present invention.
第11B圖係表示本發明實施形態之頂起作業的第一段 階之側面展開圖。Figure 11B is a view showing the first stage of the jacking operation of the embodiment of the present invention. Side view of the stage.
第12A圖係表示本發明實施形態之頂起作業的第二段階之垂直剖面圖。Fig. 12A is a vertical sectional view showing the second stage of the jacking operation of the embodiment of the present invention.
第12B圖係表示本發明實施形態之頂起作業的第二段階之側面展開圖。Fig. 12B is a side elevational view showing the second stage of the jacking operation of the embodiment of the present invention.
第13A圖係表示本發明實施形態之頂起作業的第三段階之垂直剖面圖。Fig. 13A is a vertical sectional view showing the third stage of the jacking operation of the embodiment of the present invention.
第13B圖係表示本發明實施形態之頂起作業的第三段階之側面展開圖。Fig. 13B is a side development view showing the third stage of the jacking operation of the embodiment of the present invention.
第14圖係表示本發明實施形態之外層側壁的工程口之垂直剖面圖。Fig. 14 is a vertical sectional view showing an engineering port of the outer layer side wall of the embodiment of the present invention.
第15圖係表示本發明實施形態之構築方法的第10步驟之垂直剖面圖。Fig. 15 is a vertical sectional view showing a tenth step of the construction method of the embodiment of the present invention.
第16圖係表示本發明實施形態之構築方法的第11步驟之垂直剖面圖。Fig. 16 is a vertical sectional view showing the eleventh step of the construction method of the embodiment of the present invention.
第17A圖係表示本發明實施形態之構築方法的第12步驟之垂直剖面圖。Fig. 17A is a vertical sectional view showing a twelfth step of the construction method of the embodiment of the present invention.
第17B圖係第17A圖之主要部分的放大圖。Fig. 17B is an enlarged view of a main part of Fig. 17A.
第18圖係表示本發明實施形態之構築方法的第13步驟之垂直剖面圖。Figure 18 is a vertical sectional view showing a thirteenth step of the construction method of the embodiment of the present invention.
第19圖係表示本發明實施形態之構築方法的整個流程圖。Fig. 19 is a flow chart showing the entire construction method of the embodiment of the present invention.
1‧‧‧基礎底板(外槽底部)1‧‧‧Basic base plate (bottom of the outer groove)
2‧‧‧PC壁(外槽之側壁)2‧‧‧PC wall (side wall of outer groove)
3‧‧‧基礎部3‧‧‧Basic Department
4‧‧‧內槽錨定帶4‧‧‧Internal anchoring band
5‧‧‧側襯板(外槽側板)5‧‧‧Side liner (outer groove side panel)
8‧‧‧臨時支架8‧‧‧ Temporary stent
9‧‧‧曲槽側板(內槽的側壁)9‧‧‧ Curved side panel (side wall of inner groove)
11‧‧‧折角板(折角部)11‧‧‧Folding board (corner part)
13‧‧‧環狀部13‧‧‧Rings
14‧‧‧內槽屋頂14‧‧‧Inch roof
16‧‧‧吊裝側千斤頂支架16‧‧‧ Lifting side jack bracket
19‧‧‧頂起裝置19‧‧‧ jacking device
19a‧‧‧千斤頂本體19a‧‧‧ jack body
20‧‧‧頂起桿20‧‧‧Top rod
20a‧‧‧平衡桿20a‧‧‧Balance rod
21‧‧‧被吊裝側千斤頂支架21‧‧‧Hauled side jack bracket
29‧‧‧施工口(開口部)29‧‧‧ Construction port (opening)
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101126572A TWI502119B (en) | 2012-07-24 | 2012-07-24 | Method for fabricating a cylindrical tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101126572A TWI502119B (en) | 2012-07-24 | 2012-07-24 | Method for fabricating a cylindrical tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201404992A TW201404992A (en) | 2014-02-01 |
| TWI502119B true TWI502119B (en) | 2015-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101126572A TWI502119B (en) | 2012-07-24 | 2012-07-24 | Method for fabricating a cylindrical tank |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI502119B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6351173B2 (en) * | 2014-11-19 | 2018-07-04 | 株式会社Ihi | Construction method of cylindrical tank |
| JP6663204B2 (en) * | 2014-11-19 | 2020-03-11 | 株式会社Ｉｈｉプラント | Construction method of cylindrical tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185264A (en) * | 1983-04-05 | 1984-10-20 | 株式会社石井鉄工所 | Method and apparatus for assembling double shell low temperature tank |
| JPH0762924A (en) * | 1993-08-23 | 1995-03-07 | Mitsubishi Heavy Ind Ltd | Construction method for concrete outer tank low-temperature tank |
| JPH07253196A (en) * | 1994-03-14 | 1995-10-03 | Mitsubishi Heavy Ind Ltd | Construction method for low temperature tank with concrete outer tank |
-
2012
- 2012-07-24 TW TW101126572A patent/TWI502119B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185264A (en) * | 1983-04-05 | 1984-10-20 | 株式会社石井鉄工所 | Method and apparatus for assembling double shell low temperature tank |
| JPH0762924A (en) * | 1993-08-23 | 1995-03-07 | Mitsubishi Heavy Ind Ltd | Construction method for concrete outer tank low-temperature tank |
| JPH07253196A (en) * | 1994-03-14 | 1995-10-03 | Mitsubishi Heavy Ind Ltd | Construction method for low temperature tank with concrete outer tank |
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| Publication number | Publication date |
|---|---|
| TW201404992A (en) | 2014-02-01 |
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