1311599 (1) 九、發明說明 【發明所屬之技術領域】 本發明的地下構造物之構築方法是關於在鐵路、道路 等的下部地層中，朝橫切過鐵路、道路的下部的方向控掘 和構築大幅度的地下構造物，不會對於上部的交通造成障 礙的施工法。 — 【先前技術】 想要在鐵路、道路等的下部地層中，朝橫切過鐵路、 道路的下部的方向控掘並構築大幅度的地下構造物時，必 須設置用以支承上部交通的防護設施，這種防護設施，以 前是採用例如：將鋼管等等呈水平地並排成鋼管頂棚的工 法。 以前的這種技術是業界所一般採行的工法，因此並不 是記載於文獻上的公知的發明。 【發明內容】 〔本發明所欲解決的課題〕 鋼管頂棚工法因爲是在鋼管頂棚的內側構築結構物， 所以表層覆土需要很多，而且這個鋼管頂棚的施工係屬於 與構築地下結構物不同的工程，而是需要另外一個工程來 施作的防護設施工程，所以整個施工期間會拖長，耗費工 程費用而且施工性也欠佳。 本發明之目的是爲了要解決上述習知工法例子的缺失 (2) 1311599 ，而提供：不必以另外的工程來對於在地層中 施作防護設施，可與函體的掘進同時地施工， 實且廉價地施作，而且表層覆土也很淺可謀求 的地下構造物之構築方法。 〔用以解決課題之手段〕 本發明爲了達成上述目的，本案的請求項 • 明的要旨是：從起步坑將上部配設了降低摩擦 用筒體壓入到地層中，使其並列而且貫通至到 體配設在放置於起步坑的頂棚用筒體的後部， 力板的後端固定在起步坑，一面使其留置在地 使頂棚用筒體和函體掘進。 根據本案的請求項1所述的發明，是將函 棚用筒體的後部，而使得兩者同時掘進，所以 一種完全獨立的工程來施作防護設施，即可安 ® 施工，而且，當函體實施掘進時，在地下構造 所的整個寬度範圍內，係有降低摩擦力板存在 部位置處，可利用這種降低摩擦力板將函體以 體與周邊的土石隔絕。因此，當函體於掘進時 周邊的地層以及旁邊的構造物帶來不良影響， 暢地讓函體以及頂棚用筒體掘進。 本案的請求項2所述的發明的要旨是：上 體是設置在與所設置的函體的外緣端中的至少 對齊的位置。 掘進的函體 可安全又確 提高施工性 1所述的發 力板的頂棚 達坑，將函 將降低摩擦 層中，一面 體配設再頂 不需要另外 全且確實地 物的構築場 於函體的上 及頂棚用筒 ，不會對於 因而得以順 述頂棚用筒 上部水平板 -6- (3) 1311599 根據本案的請求項2所述的發明，是可將函體與頂棚 用筒體的頂面位置設成同一高度，所以只需要很淺的表層 覆土即可，此外，就減少暫時性的檔土樁的施工、以及就 地層湧水對策等各方面而言，也是具有優點。 本案的請求項3所述的發明的要旨是：上述頂棚用筒 體’是在一面挖掘採掘面一面讓函體掘進時，被函體擠推 出去，而從到達坑來加以回收的。 ® 根據本案的請求項3所述的發明，因爲可將頂棚用筒 體回收再利用，所以可讓暫時性的埋設材的用量變少，可 謀求資源的有效活用。 〔發明之效果〕 如上所述，本發明的地下構造物之構築方法，是將函 體配設於埋設在地層中的頂棚用筒體的後部，並使頂棚用 筒體和函體同時掘進，所以針對於在地層中掘進的函體的 ® 防護設施，不必以另外的工程來進行施工，而可與函體的 掘進同時實施，可達成安全、確實又價廉的施工，而且表 層覆土也只要很薄即可，可謀求提高施工性。 【實施方式】 〔發明之最佳實施形態〕 茲佐以圖面來詳細說明本發明的實施形態如下。第1 圖是顯示本發明的地下構造物之構築方法的第〗實施形態 的推進方式的縱斷側面圖；第2圖〜第9圖是顯示本發明 (4) 1311599 的地下構造物之構築方法的施工工序圖，利用推進方 施作的地下構造物之構築方法，是如第1圖所示般地 設置在起步坑1的主油壓缸2將頂棚用筒體也就是箱 棚4與混凝土函體3 —起推進至到達坑5的方法。 以下，將依據第2圖〜第9圖來說明採用這種推 法來施作的構築方法。第2圖是豎坑的構築工序（第 序）’係在被舖設混凝土函體3後又被構築地下構造 ® 施工場所也就是橫斷區間7與構築於該橫斷區間7的 的起步坑1與到達坑5的預定場所的境界部植入鋼板 以當作暫時性擋土樁6。 第3圖是顯示第二工序，係初步地挖掘起步坑1 到達坑5的內部。所挖掘的深度是要配合箱型頂棚4 得當設置箱型頂棚4時，讓該箱型頂棚4的外緣端的 上部水平板的高度與所挖掘的深度一致。然後在初步 掘後的起步坑1內’設置在上部配設了降低摩擦力板 ® 箱型頂棚4，在這個箱型頂棚4的後方配設箱型頂棚 裝置也就是推進用油壓缸10。 在這種狀態下，降低摩擦力板8的前端是被固定 型頂棚4的前端的切刃口 9。 接下來的第三工序係如第4圖所示般地，令推進 壓缸1 〇伸長以將箱型頂棚4從起步坑1朝到達坑5 向推進且壓進地層中。箱型頂棚4是長型的一體構造 就是由鋼管所製作而成的斷面略呈正方形的箱型筒體 利用位在側面上的連接頭，在長度方向上連續地形成 式來 ’以 型頂 進方 —工 物的 兩側 樁等 以及 ，使 至少 地挖 8的 推進 在箱 用油 的方 物也 ，可 ，並 -8- (5) 1311599 且可利用連接頭而在橫方向上並排。 其並排排列的型態，例如在第1 2圖（a ) 地層或者在柔軟地層的旁邊施工等的情況，係 型，並可對應於施工場所的條件適當地選擇並 例如在第1 2圖（b )所示的普通地層、作業用 況下，混凝土函體3的施工是以推進方式爲主 可採用門型排列；例如在第1 2圖（c )所示的 • 作業用地寬度較大的情況、橫斷部的地盤挖掘 立性較高的情況下，可採用水平一字型的排列 只要採用這種方式來推進箱型頂棚4的話 力板8因爲其前端被固定在箱型頂棚4，所以 力板8與箱型頂棚4 一起形成一體地被推進。 然後，箱型頂棚4以及降低摩擦力板8的 到達坑5而貫通了橫斷區間7的話，就可以解 擦力板8在箱型頂棚4上的固定結構。 ® 然後，對於起步坑1和到達坑5進行第二 工作，在起步坑1設置起步台11和反作用力壁 第5圖是顯示第四工序，先在起步坑1構 下構造物的混凝土函體3，並將切刃口 1 3組裝 至於構築混凝土函體3的工作，既可在起步坑 製作，或者採用預先在工場內製作好的製品。 下，混凝土函體3的上部水平板的位置是與箱 設置位置一致。 第6圖是顯不第五工序，是在起步坑1內 所示的柔軟 排列成函洞 排的型態； 地較少的情 的情況下， 普通地層、 面穩定、自 〇 ，降低摩擦 該降低摩擦 前端突出於 除該降低摩 階段的挖掘 12 ° 築出作爲地 在其前端。 1內的現場 在這種狀態 型頂棚4的 的混凝土函 -9- (6) 1311599 體3的後方，配置支柱材14也就是框架構件以及主油壓 缸2，而且在混凝土函體3的前部之與箱型頂棚4之間， 設置了設有小型油壓缸1 5 a的油壓缸收納頂棚1 5等，以 當作箱型頂棚4以及混凝土函體3的推進設備。 此外，油壓缸收納頂棚1 5並不一定要設置，只有在 於箱型頂棚4的推進與混凝土函體3的推進是分別地施作 的情況下，才需要設置的。第1圖是並未設置油壓缸收納 • 頂棚15的情況，這種情況下，混凝土函體3的前部是直 接抵接在箱型頂棚4的後端面。 然後，將降低摩擦力板8的後端以固定構件1 6固定 在起步坑1側的暫時性擋土樁6，而在於到達坑5則是設 置箱型頂棚4的承受架台17。 第7圖是顯示第六工序，藉由將主油壓缸2伸長，並 且利用切刃口 13進行掘進的同時，也一倂將混凝土函體3 和箱型頂棚4予以推進。此時，因爲降低摩擦力板8是被 ® 固定構件16固定在起步坑1，所以降低摩擦力板8並不會 移動’而是在利用該降低摩擦力板8阻隔了週邊的土石的 狀態下’將箱型頂棚4以及混凝土函體3在降低摩擦力板 8的下面進行推進。圖中的符號1 8是支柱構件。 如果是採用小型油壓缸〗5 a的話，使該小型油壓缸 1 5 a伸長而以混凝土函體3當作反作用力，在留置住降低 摩擦力板8的狀態下，一次一根依序地將箱型頂棚4予以 推進’一旦箱型頂棚4前進的話，就將小型油壓缸！ 5a縮 回’然後將主油壓缸2伸長，以令混凝土函體3前進。以 -10- (7) (7)1311599 (1) EMBODIMENT OF THE INVENTION [Technical Fields of the Invention] The method of constructing the underground structure of the present invention relates to the control of digging and crossing the railway and the lower part of the road in the lower stratum of railways, roads, and the like. A construction method that creates a large underground structure and does not cause obstacles to the upper traffic. — [Prior Art] When it is necessary to control and construct a large underground structure in the direction of crossing the lower part of the railway or the road in the lower stratum of the railway, the road, etc., it is necessary to provide protective facilities for supporting the upper traffic. This kind of protective equipment used to be, for example, a method of horizontally arranging steel pipes and the like into a steel pipe roof. The prior art is a commonly used technique in the industry and is therefore not a well-known invention described in the literature. SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] Since the steel pipe roofing method constructs a structure on the inner side of the steel pipe roof, the surface layer covering soil requires a lot, and the construction system of the steel pipe roof belongs to a project different from the construction of the underground structure. It is a protective facility project that needs another project to be applied, so the whole construction period will be prolonged, costing engineering costs and poor construction. The purpose of the present invention is to solve the above-mentioned lack of the conventional method example (2) 1311599, and to provide that it is not necessary to additionally apply a protective device in the formation, and can be constructed simultaneously with the excavation of the body. A method of constructing underground structures that can be applied at a low cost and that is shallow in surface covering. [Means for Solving the Problem] In order to achieve the above object, the present invention claims the object of the present invention to: press a cylinder for reducing friction from the starting pit into a ground layer, and juxtapose and penetrate the same to The body is disposed at the rear of the ceiling cylinder placed in the starting pit, and the rear end of the force plate is fixed to the starting pit, and is placed on the ground to allow the ceiling cylinder and the body to be dig. According to the invention of claim 1 of the present invention, the rear portion of the tubular body is used for the simultaneous excavation of the two, so that a completely independent project can be used as a protective device, and the construction can be carried out. When the body is excavated, the position of the portion where the friction plate is present is reduced over the entire width of the underground structure, and the friction reducing plate can be used to isolate the body from the surrounding earth and stone. Therefore, when the body is in the vicinity of the formation and the adjacent structure, the structure is adversely affected, and the body and the ceiling are smoothly excavated. The gist of the invention described in claim 2 of the present invention is that the upper body is disposed at at least a position aligned with the outer edge end of the disposed body. The body of the excavation can safely and surely improve the construction. The roof of the force plate is up to the pit, and the letter will reduce the friction layer, and the one side body is equipped with a top and no other solid and real objects. The upper and the upper canopy of the body, so that the upper horizontal plate of the canopy can be described as follows - 6 - (3) 1311599 According to the invention described in claim 2 of the present invention, the body and the canopy for the ceiling can be used. Since the top surface position is set to the same height, it is only necessary to cover the surface layer with a very shallow surface. In addition, it is advantageous in terms of reducing the construction of the temporary soil pile and the countermeasure against the water in the ground. The gist of the invention described in claim 3 of the present invention is that the above-mentioned ceiling cylinder is retracted by the body when the excavation surface is excavated while the body is being excavated, and is recovered from the pit. According to the invention of claim 3 of the present invention, since the ceiling can be recovered and reused, the amount of the temporary embedded material can be reduced, and resources can be effectively utilized. [Effects of the Invention] As described above, the method for constructing the underground structure of the present invention is to arrange the functional body in the rear portion of the ceiling cylinder buried in the formation, and to simultaneously dig the ceiling cylinder and the functional body. Therefore, the protection device for the function of the body that is being excavated in the stratum does not have to be constructed by another project, but can be implemented simultaneously with the excavation of the body to achieve safe, reliable and inexpensive construction, and the surface layer is covered as well. It is very thin and can improve construction. [Embodiment] BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a longitudinal side view showing a propulsion type according to a first embodiment of a method for constructing a subterranean structure according to the present invention; and FIGS. 2 to 9 are views showing a method of constructing a subterranean structure of the present invention (4) 1311599; In the construction process diagram, the construction method of the underground structure by the propulsion side is the main hydraulic cylinder 2 provided in the starting pit 1 as shown in Fig. 1, and the ceiling cylinder, that is, the box shed 4 and the concrete. The function 3 is a method of advancing until reaching the pit 5. Hereinafter, a construction method using such a push method will be described based on Figs. 2 to 9 . The second figure shows the construction process of the vertical pit (the first order). After the concrete body 3 is laid, the underground structure is constructed. The construction site is the cross section 7 and the starting pit 1 is constructed in the cross section 7. A steel plate is implanted with the boundary portion of the predetermined place where the pit 5 is reached to serve as the temporary retaining pile 6. Fig. 3 is a view showing the second step of initially digging the starting pit 1 to reach the inside of the pit 5. The depth of the excavation is to match the box roof 4 when the box roof 4 is properly provided, so that the height of the upper horizontal plate at the outer edge end of the box roof 4 coincides with the depth of the excavation. Then, in the preliminary excavation start pit 1, a lower friction plate ® box type ceiling 4 is disposed at the upper portion, and a box type ceiling device, that is, a propulsion hydraulic cylinder 10, is disposed behind the box type ceiling 4. In this state, the front end of the lower friction plate 8 is the cutting edge 9 of the front end of the fixed ceiling 4. In the subsequent third step, as shown in Fig. 4, the thrust cylinder 1 is extended to push the box ceiling 4 from the starting pit 1 toward the reaching pit 5 and press it into the formation. The box-shaped ceiling 4 is a long-shaped integrated structure, which is a square-shaped box-shaped cylinder made of a steel pipe, which is formed continuously on the longitudinal direction by a joint on the side. In addition, the squares on both sides of the workpiece and the like, and the squares that push the oil in the tank at least 8 can also be -8-(5) 1311599 and can be side by side in the lateral direction by the joint. The type of the side-by-side arrangement, for example, in the case of the formation of the layer (a) in Fig. 2 or the side of the soft formation, the type, and may be appropriately selected corresponding to the conditions of the construction site and, for example, in Fig. 1 ( b) Under the normal stratum and working conditions shown, the construction of the concrete body 3 is mainly in the form of a gate type in the propulsion mode; for example, in the case of Fig. 22 (c), the width of the working land is large. In the case where the site of the cross-section is highly excavated, a horizontal one-line arrangement can be employed. As long as the box-shaped ceiling 4 is pushed in this manner, the force plate 8 is fixed to the box-shaped ceiling 4 because its front end is fixed. Therefore, the force plate 8 is integrally formed with the box type ceiling 4 together. Then, when the box-shaped ceiling 4 and the lowering of the friction plate 8 reach the pit 5 and pass through the transverse section 7, the fixing structure of the force plate 8 on the box-shaped ceiling 4 can be solved. ® Then, the second work is performed for the starting pit 1 and the reaching pit 5, and the starting stage 11 and the reaction force wall are set in the starting pit 1 . FIG. 5 shows the fourth step, and the concrete body of the structure is first constructed in the starting pit 1. 3, and the cutting edge 13 is assembled to the work of constructing the concrete body 3, which can be made in the starting pit or a product which is prepared in advance in the workshop. Next, the position of the upper horizontal plate of the concrete body 3 is the same as the position of the box. Figure 6 is a fifth process, which is a type of soft arrangement arranged in the starting pit 1 in the shape of a hole; in the case of less ground, the common formation, the surface is stable, self-twisting, and the friction is reduced. The lower friction front end protrudes from the excavation 12 ° in addition to the reduced friction stage as the ground at its front end. The site in 1 is located behind the concrete box-9-(6) 1311599 body 3 of the state-type ceiling 4, and the pillar member 14 is disposed as the frame member and the main hydraulic cylinder 2, and is in front of the concrete body 3. Between the part and the box-shaped ceiling 4, a hydraulic cylinder housing 1 5 having a small hydraulic cylinder 1 5 a is provided to serve as a pusher for the box roof 4 and the concrete body 3. Further, the hydraulic cylinder housing ceiling 15 does not have to be provided, and it is only required to be provided in the case where the advancement of the box ceiling 4 and the advancement of the concrete body 3 are separately performed. Fig. 1 shows a case where the hydraulic cylinder is not accommodated in the ceiling 15 . In this case, the front portion of the concrete body 3 is directly abutted against the rear end surface of the box ceiling 4 . Then, the rear end of the friction plate 8 is lowered to fix the temporary retaining pile 6 on the side of the starting pit 1 by the fixing member 16, and the receiving stand 17 of the box-shaped ceiling 4 is provided in the reaching pit 5. Fig. 7 is a view showing the sixth step of eminating the concrete body 3 and the box ceiling 4 while elongating the main hydraulic cylinder 2 and performing the excavation by the cutting edge 13. At this time, since the friction reducing plate 8 is fixed to the starting pit 1 by the fixing member 16, the friction plate 8 is not moved, but in the state where the surrounding friction stone is blocked by the friction reducing plate 8 'The box roof 4 and the concrete body 3 are advanced under the friction reducing plate 8. Symbol 18 in the figure is a strut member. If a small hydraulic cylinder is used, the small hydraulic cylinder is extended to 15 a and the concrete body 3 is used as a reaction force. In the state in which the friction reducing plate 8 is retained, one by one. The box roof 4 is pushed forward. Once the box roof 4 is advanced, a small hydraulic cylinder will be used! 5a is retracted' and then the main hydraulic cylinder 2 is extended to advance the concrete body 3. To -10- (7) (7)
1311599 這種方式反覆交替地執行令箱型頂棚4和混凝土函 進的工作。 抵達至到達坑5後的箱型頂棚4是由承受架台 承接，再利用吊車將其吊上去，而予以依序地回收撤 第8圖是顯示第七工序，是依序地加裝支柱構 以便更進一步地將箱型頂棚4與混凝土函體3予以托 使其橫斷過施工場所也就是橫斷區間7，所有的箱ϋ 4都抵達至到達坑5之後，就將承受架台17予以撤阔 且，一旦混凝土函體3的前端的切刃口 13抵達至到委 之後，就將切刃口 13予以撤除，並且在混凝土函體 前端處，適度地灌注水泥漿。 第9圖是顯示第八工序，是在結束了上述的混澡 體3的推進工序之後，從起步坑1將反作用力壁12、 壓2、支柱材14、支柱構件18等的推進設備、降低 力板8的固定構件1 6予以撤除，而結束所有的工序（ 第1 〇圖是顯示本發明的地下構造物之構築方S 進方式的其他變形例，在上述第1實施形態中，是精 到達坑5，但是在第I 0圖所示般地，橫斷區間7是 1 9的情況下，到達側是形成一個法面，所以並不需要 到達坑5 ’只要利用這個法面，亦可將其當作到達坑 使用。 在上述的第1實施形態雖然是以推進方式來施 但是，亦可採用如第1 1圖所示般的牽引方式的施 來當作本發明的第2實施形態。這種第2實施形態 ί 3前 17來 除。 件18 I進， ί頂棚 卜而 塞坑5 3的 Ε 土函 主油 5摩擦 〇 t的推 I築了 卜土堆 !構築 5來 ;的， 「方法 是在 -11 - (8) 1311599 到達坑5側，設置反作用力體2 2，並且設置具有反作用力 壁23的反作用力樁25，由PC鋼線等所構成的牽引用鋼 索21的一端是安裝在牽引用油壓缸20,該牽引用鋼索21 的另一端則是利用定著裝置24而固定在上述反作用力壁 2 3 〇 然後，以牽引用油壓缸20來牽拉該牽引用鋼索21， 以便將混凝土函體3以及箱型頂棚4從起步坑1側往到達 坑5側拉進去而使其前進。至於其他部分的結構以及作動 方式則是與第1實施形態相同。 此外，雖然未以圖面來顯示出來，但是亦可將推進方 式與牽引方式一起倂用。 【圖式簡單說明】 第1圖是顯示本發明的地下構造物之構築方法的第1 實施形態的縱斷側面圖。 第2圖是顯示本發明的地下構造物之構築方法的第i 實施形態的施工的第一工序的縱斷側面圖。 第3圖是顯示本發明的地下構造物之構築方法的第1 實施形態的施工的第二工序的縱斷側面圖。 第4圖是顯示本發明的地下構造物之構築方法的第1 實施形態的第三工序的縱斷側面圖。 第5圖是顯示本發明的地下構造物之構築方法的第1 實施形態的第四工序的縱斷側面圖。 第6圖是顯示本發明的地下構造物之構築方法的第1 -12- (9) 1311599 實施形態的第五工序的縱斷側面圖。 第7圖是顯示本發明的地下構造物之構築方法的第j 實施形態的第六工序的縱斷側面圖。 第8圖是顯示本發明的地下構造物之構築方法的第i 實施形態的第七工序的縱斷側面圖。 第9圖是顯示本發明的地下構造物之構築方法的第1 實施形態的第八工序的縱斷側面圖。 第10圖是顯示本發明的地下構造物之構築方法的第1 實施形態的其他例子的縱斷側面圖。 第1 1圖是顯示本發明的地下構造物之構築方法的第2 實施形態的縱斷側面圖。 第1 2圖（a ) ( b ) ( C )是顯示箱型頂棚的各種排列 型態的正面圖。 【主要元件符號說明】 1 :起步坑 2 :主油壓缸 3 :混凝土函體 4 :箱型頂棚 5 =到達坑 6 :暫時性擋土樁 7 ·‘橫斷區間 8 :降低摩擦力板 9 :切刃口 -13- (10) 13115991311599 This method alternately performs the work of box-type ceiling 4 and concrete entry. The box roof 4 that arrives after reaching the pit 5 is taken by the receiving platform, and then lifted by the crane, and sequentially recovered. Figure 8 shows the seventh process, which is to install the pillars in order. Further, the box roof 4 and the concrete body 3 are supported so as to traverse the construction site, that is, the cross section 7, and all the boxes 4 arrive until the pit 5 is reached, and the rack 17 is to be widened. Further, once the cutting edge 13 of the front end of the concrete body 3 reaches the end of the wall, the cutting edge 13 is removed, and at the front end of the concrete body, the cement slurry is moderately poured. In the ninth step, after the step of advancing the above-described kneading body 3 is completed, the propulsion device such as the reaction force wall 12, the pressure 2, the strut member 14, and the strut member 18 is lowered from the starting pit 1. The fixing member 16 of the force plate 8 is removed, and all the steps are completed. (The first drawing shows another modification of the construction method of the underground structure of the present invention, and in the first embodiment, it is fine. Arrived in the pit 5, but in the case shown in Fig. 0, when the transverse section 7 is 19, the reaching side forms a normal plane, so it is not necessary to reach the pit 5' as long as the normal surface is used. In the above-described first embodiment, the first embodiment is applied as a propulsion method, and the traction method as shown in Fig. 1 can be used as the second embodiment of the present invention. This second embodiment ί 3 is removed from the first 17th. The piece 18 I enters, the top of the shed and the pit 5 3 of the earthen core oil 5 friction 〇t push I built a pile of soil! Construct 5; , "The method is to reach the pit 5 side at -11 - (8) 1311599, set the reaction force body 2 2 And a reaction force pile 25 having a reaction force wall 23 is provided, and one end of the traction cable 21 composed of a PC steel wire or the like is attached to the traction hydraulic cylinder 20, and the other end of the traction cable 21 is used The device 24 is fixed to the reaction force wall 2 3 and then the traction cable 20 is pulled by the traction hydraulic cylinder 20 to move the concrete body 3 and the box ceiling 4 from the side of the starting pit 1 to the pit. The other side is pulled in and moved forward. The configuration and operation of the other parts are the same as in the first embodiment. Further, although not shown in the drawings, the propulsion method and the traction method may be used together. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional side view showing a first embodiment of a method for constructing a subterranean structure according to the present invention. Fig. 2 is a view showing an i-th embodiment of a method for constructing a subterranean structure according to the present invention. Fig. 3 is a longitudinal side view showing a second step of the construction of the first embodiment of the method for constructing a subterranean structure according to the present invention. Fig. 4 is a front view showing the present invention. Longitudinal side view of the third step of the first embodiment of the method for constructing the underground structure. Fig. 5 is a longitudinal side view showing the fourth step of the first embodiment of the method for constructing the underground structure of the present invention. Fig. 6 is a longitudinal sectional side view showing a fifth step of the first embodiment of the first embodiment of the present invention, showing a method for constructing a subterranean structure according to the present invention. Fig. 7 is a view showing the construction of the underground structure of the present invention. Fig. 8 is a longitudinal sectional side view showing a seventh step of the i-th embodiment of the method for constructing the underground structure according to the present invention. Fig. 9 is a vertical side view showing the seventh step of the method for constructing the underground structure of the present invention. A longitudinal sectional side view of an eighth step of the first embodiment of the method for constructing a substructure according to the present invention. Fig. 10 is a longitudinal sectional side view showing another example of the first embodiment of the method for constructing the underground structure of the present invention. Fig. 1 is a longitudinal sectional side view showing a second embodiment of the method for constructing the underground structure of the present invention. Fig. 1 (2) (b) (C) is a front view showing various arrangement types of the box type ceiling. [Main component symbol description] 1 : Starting pit 2 : Main hydraulic cylinder 3 : Concrete body 4 : Box roof 5 = Arrival pit 6 : Temporary retaining pile 7 · 'Transverse section 8 : Lower friction plate 9 : Cutting edge-13- (10) 1311599
1 0 :推進用油壓缸 1 1 :起步台 1 2 :反作用力壁 1 3 :切刃口 1 4 :支柱材 1 5 :油壓缸收納頂棚 1 5 a :小型油壓缸 1 6 :固定構件 1 7 :承受架台 1 8 :支柱構件 1 9 : 土堆 20:牽引用油壓缸 21 :牽引用鋼索 22 :反作用力體 23 :反作用力壁 24 :定著裝置 2 5 :反作用力樁1 0 : hydraulic cylinder for propulsion 1 1 : starting block 1 2 : reaction force wall 1 3 : cutting edge 1 4 : strut material 1 5 : hydraulic cylinder storage ceiling 1 5 a : small hydraulic cylinder 1 6 : fixed Member 1 7 : Withstand frame 1 8 : Strut member 1 9 : Soil pile 20 : Traction hydraulic cylinder 21 : Traction cable 22 : Reaction force body 23 : Reaction force wall 24 : Fixing device 2 5 : Reaction force pile