201033441 六、發明說明： 【潑^明戶斤屬之^技^彻貝域》】 發明領域 本發明係有關一種組合鋼板樁、利用組合鋼板樁之連 續壁及組合鋼板樁之壓入方法。本發明之組合鋼板樁係使 用作為土木建築領域之擋土牆、基礎構造、港彎河川之護 岸、岸壁、且擋水牆所使用之構造構件。特別是，本發明 係有關於可確實發揮高垂直支撐力，且適合於以泛用之壓 入機械埋入之組合鋼板樁、利用組合鋼板樁之連續壁及組 合鋼板樁之壓入方法。 【先前冬好;j 發明背景 對使用作為土木建築領域之擋土牆、基礎構造、港彎 河川之護岸、岸壁、且擋水牆所使用構造構件之鋼板樁， 接頭部設於其寬度方向之兩端部。藉由將複數鋼板樁埋入 地盤以使鄰接之鋼板樁的接頭部嵌合而形成壁面。 近年來，例如專利文獻1、2提出如以下之鋼板樁來作 為用以使鋼板樁之鉛直支撐力提升的技術。 在專利文獻1之揭示技術，例如如第12圖所示，藉由將 閉合鋼材103接合於鋼板樁1〇2之前端部，而形成鋼板樁102 與閉合鋼材103所產生之閉斷面部。因此，在組合鋼板樁101 埋入地盤時，進入到閉斷面部分之土塊被壓實而閉塞鋼板 樁101之前端部。因此，可獲得高的鉛直支撐力（前端支撐 力）。使該閉斷面部越大則可越使前端支撐力提高。 3 201033441 而，將鋼板樁貫入地下時，係頻繁使用透過鋼板樁將 振動施加於地盤，使地盤產生流動化現象或是靈敏化現象 而讓鋼板樁容易貫入之所謂的振動式打樁機工法。在專利 文獻1之揭示技術中，藉由該振動式打樁機工法而可將鋼板 樁101貫入地下。 但是，以壓入工法（將應壓入之組合鋼板樁101以壓入 機之夾頭把持，對該組合鋼板樁101以汽缸施加靜載重而壓 入地下的壓入工法）將組合鋼板樁101埋入地下時，在閉合 鋼材103之尺寸變大的情況，是無法利用夾頭把持組合鋼板 樁101的。因此，為了把持組合鋼板樁101必須另外使用特 殊專用的壓入機械。 又，依據專利文獻2之揭示技術，可將安裝有Η型鋼之 帽型鋼板樁藉由帽型鋼板椿施工所使用的泛用壓入機之夹 頭把持。具體而言，該專利文獻2揭示技術的鋼板樁係設計 成具有收納於以連結設於一對臂板部前端的接頭部的線 (嵌合軸）之中間點為中心，再由與帽型鋼板樁之全寬度 相等的直徑所構成的圓之内部。 惟，依據該專利文獻2之揭示技術，基於壓入工法確實 可將鋼板樁埋入地下，但並無法形成閉斷面部。其結果， 無法確保使土塊進入閉斷面部且將其壓實所產生之高鉛直 支撐力。 【習知技術文獻】 【專利文獻】 【專利文獻1】特開2〇〇8·248503號公報 201033441 【專利文獻2】特開2008-175〇29號公報 【^^明内容】 發明概要 【發明概要】 【發明所欲解決的問題】 本發明係鑒於上述問題而提出者。本發明之目的係在 提供一種可確實發揮高鉛直支撐力’且可以帽型鋼板捲施 工所使用之泛用壓入工法所使用的壓入機之失頭把持的会且 合鋼板樁、使用組合鋼板樁之連續壁、及組合鋼板樁之壓 入方法。 本發明為了解決上述問題而使用以下之手段。 (1) 本發明第1實施態樣係具有第1帽型鋼板捲 合構件的組合鋼板樁，該第1帽型鋼板樁具有腹板部、設於 該腹板部之兩端部的一對翼板部、分別設於該一對翼板部 之端部的一對臂板部、及分別形成於該一對臂板部之端部 的一對接頭部，且該閉合構件係具有安裝於前述第丨帽型鋼 板樁之長度方向之至少一部分的側部。藉由前述第1帽型鋼 板樁與前述閉合構件所形成之閉合斷面形狀，係包含於以 連結前述一對接頭部間之線為直徑之圓的内部。 (2) 在上述（1)記載之組合鋼板樁，前述閉合構件 之側部也可安裝於前述第1帽型鋼板樁之前述臂板部或前 述翼板部。 (3) 在上述（1)或（2)記載之組合鋼板樁，前述閉 合構件也可是第2帽型鋼板樁。 5 201033441 (4) 在上述（1)或（2)記栽之組合鋼板樁，其中前 述閉合構件也可是U型鋼板樁。 (5) 在上述（1)或（2)記載之組合鋼板樁，其中前 述閉合構件也可是接頭部切斷鋼板樁。 (6) 在上述（1)或（2)記載之組合鋼板樁，前述閉 合構件也可是鋼板。 (7) 在上述（1)或（2)記載之組合鋼板樁，前述閉 合構件也可是1處以上折彎之折板。 (8) 在上述（1)或（2)記載之組合鋼板樁，前述閉 合構件也可是彎成曲線狀之曲板。 (9) 在上述（8)記載之組合鋼板樁，其中前述曲板 也可沿著前述圓彎曲。 (10) 在上述（1 )或（2)記载之組合鋼板樁，前 述閉合構件也可是藉由熔接、黏結，螺栓接合、鉚釘、螺 釘之接合、及平頭釘之接合等之任一手段而被安裝。 (11) 本發明第2實施態樣係至少利用2個上述（1) 或（2)記載之組合鋼板樁的連續壁。連結前述至少2個組 合鋼板樁之接頭部，且將前述連續壁之下端貫入直到支撐 層。 (12) 本發明第3實施態樣係利用上述（1)或（2) 記載之組合峨樁的連續壁。帛3帽型鋼板樁之接頭部連結 於前述第1帽型鋼板樁之接頭部，且至少前述組合鋼板格之 下端貫入直到支撐層。 (13) 本發明第4實施態樣係上述⑴或⑴記載 201033441 核合鋼板樁之壓人方法，其具有：藉由壓人機之爽具把 持前述一對臂板部的把持步驟、及藉由前述壓入機將前述 組合鋼板樁之下端壓入至地盤之支撐層的壓入步驟。 【發明的效果】 由上述構成而成之本發明中，調整閉合構件之尺寸以 將組合鋼板樁收入於上述圓之内部。其結果，可利用在壓 法中頻繁使用之壓人機的夾具把持組合鋼板捲。亦 • ~ ’在本發明中’原原本本利用習知之壓人機，依據所謂 的麼入工法而可壓入具有閉合斷面之組合鋼板樁。因此， 由於可原原本本適用既存的設備、裝置，不需特別的設備 投資，而可抑制施工成本的上升。 , 又’在適用本發明之組合鋼板樁中，藉由第1帽型鋼板 才舂與閉合構件所形成之閉合斷面係以連結一對接頭部之嵌 合輪之中間點為中心，進一步形成於由與上述第1帽型鋼板 捲之全寬度相等的直徑而成之圓的内部。其結果，在將組 ® 合鋼板樁壓入地下時，可使土塊進入該閉合斷面内部。進 而將進入該閉合斷面内之土塊壓實，而可閉塞該組合鋼板 。特別是’藉由如上述般將該組合鋼板樁之下端貫入直 到支樓層内’特別是可將支撐層之土砂進入位於該組合鋼 板樁之下端的閉合斷面内。其結果，藉由進入之支撐層的 土砂而可壓實組合鋼板樁1之下端’且可獲得高粢直支撐 力。 如此’適用本發明之組合鋼板樁可確實地使高垂直支 擇力發揮，且可實現用於帽型鋼板樁施工所使用之泛用壓 7 201033441 入工法的壓入機之夾具把持。 圖式簡單說明 第1圖係有關本發明之第1實施形態之組合鋼板樁的斷 面圖。 第2圖係前述組合鋼板樁之立體圖。 第3圖係有關本發明之第2實施形態之連續壁的俯視 圖。 第4圖係前述連續壁之立體圖。 第5圖係有關本發明之第3實施形態之連續壁的立體 圖。 第6A圖係就有關於壓入工法中所使用之一例的壓入機 用以說明的圖式。 第6B圖係前述壓入機之俯視圖。 第7A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用U型鋼板樁作為閉合構件之圖 式。 第7B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用U型鋼板樁作為閉合構件之圖 式。 第8圖係係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用帽型鋼板樁作為閉合構件之圖 式。 第9A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用具有4處折部之折板作為閉合構 201033441 件之圖式。 第9B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用具有2處折部之折板作為閉合構 件之圖式。 第10A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用彎曲成曲線狀之曲板作為閉合 構件之圖式。 第10 B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用彎曲成曲線狀之曲板作為閉合 構件之圖式。 第11圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用一片鋼板作為閉合構件之圖式。 第12(a)、（b)圖係就有關習知技術用以說明之圖式。 C實施方式3 較佳實施例之詳細說明 【用以實施本發明之形態】 本發明人為了可確實地使高垂直支撐力發揮，且可實 現用於帽型鋼板樁施工所使用之泛用壓入工法的壓入機之 夾具把持，將閉合構件固定於帽型鋼板樁，且找出在其斷 面收納於依據壓入機之夾具形狀而導出之圓的内部之形 狀、尺寸上構成的必需點。因此，創作出安裝閉合構件以 將斷面帽型形狀之第1帽型鋼板樁之内側開斷面閉合，且該 閉合構件係將全部收納於以連結設於上述各臂板部之前端 的一對接頭部之嵌合軸的中間點為中心，再由與上述第1帽 201033441 型鋼板樁之全寬相等之直徑而成的圓内部之形狀的組合鋼 板樁。 以下，就有關使用作為用於土木建築領域之擋土牆、 基礎構造、港f河川之護岸、岸壁、及擋水牆之構造構件 之組合鋼板樁、及使賴組合鋼板樁之連續壁一面參照 圖面-面詳細說明以作為用以實施本發明之較佳形態。 首先’參照第1圖、第2圖就有關本發明之第1實施形態 予以δ兒明。第1圖係有關本實施形態之組合鋼板樁1的斷面 圖’第2®係顯示其立體圖。W中，a係顯示組合鋼板樁1之 長度方向（組合鋼板樁丨埋人的方向）、b係組合鋼板格比 寬度方向、c係組合鋼板樁i之厚度方向。又，於本發明中， 圖所示將帽型鋼板樁或閉合構件之斷面凹部側作為内 侧（I)、斷面凸部側稱為外側（〇)。 組口鋼板樁1具有第1帽型鋼板樁10與閉合構件20。 第1帽型鋼板樁1G具有-體形成之腹板部η、-對翼板 部料_13、及—對接頭部14。—對翼板部_ 連接設置成從腹板部η之兩側傾斜。X，_對臂板部⑽ 由該翼板部12之前端平行腹板部u而連接設置。一對接頭 部14係分_成於f板和之前端部。該—對接頭糾 中’其中-翻糾與另—接頭部M相互具有點對稱之斷 面形狀。該接頭部14具有可與相鄰之其他組合鋼板捲i之其 他接頭部14相互好的形狀，特別是嵌合時係、以接頭部M 相互不脫離之方式以提高嵌合強度。 又’在本實施形態所使用之第i帽型鋼板樁1〇係熱札加 10 201033441 工所成之軋壓靖，且接頭部14成形成娜的形狀，而提 高接頭部14之強度，第丨㈣峨樁10減㈣以往公知 之一片鋼板以冷彎加卫製成的鋼板樁，提高了作為含有接 頭部之鋼板樁全體的彎曲剛性。 本實施形態之閉合構件20具有腹板部21、以由腹板部 21之兩側朝圖巾内側⑴傾斜之方式連接設置的—對翼板 部22、從該-對翼板部22之前端平行腹板部21而連接設置 的臂板部23。該閉合構件2〇也可藉由切斷未圖示之第2帽型 鋼板樁之|板部的前端而形成（接頭部切斷鋼板椿）。閉合 構件20係被*裝以閉合第丨帽型鋼板樁lQ之内側開斷面。該 閉合構件2G係被安裝以_側表面對面於第丨帽型鋼板格 ίο之内側表面。其結果，於中央形成具膨脹的閉合斷面31。 又，相當於閉合構件20端部之臂板部η係以使其底面面接 觸於第1帽型鋼板樁1G之臂板部13的狀態安裝。而且，相當 於該閉合構件2G端部之臂板部23也可絲於翼板祁以取 代女裝於第1帽型鋼板樁1〇之臂板部13。又，該閉合構件2〇 之-端部也可絲於臂板部13 n安裝於翼板部12。 又，該閉合構件20如第2圖所示，也可跨於第i帽型鋼板樁 1〇之全長安裝，也可只於第丨帽型鋼板樁1G之長度方向的一 部分安裝。 附帶一提，閉合構件20對該第丨帽型鋼板樁1〇之連接可 適用例如熔接、黏結，螺栓、鉚釘、螺釘、及平頭釘等之 任一者。又，第1帽型鋼板樁1〇與閉合構件2〇之連接可於工 廠進行，也可在施工現場於埋入前或埋入時進行。 201033441 有關该閉合構件10之形狀必須是全部收納於以連結設 ;各’板部13則端之一對接頭部14的嵌合軸之中間點52為 中“’再由與上述第1帽型鋼板樁1〇之全寬度τ相等的直徑 而成的圓47之内部。 而且’閉合構件20也可以形成有上述腹板部21、翼板 部Μ、臂板部23的方式彎折之折板構成。 其次’參照第3圖、第4圖就本發明之第2實施形態予以 說明。第3圖、第4圖係顯示藉由將具有上述構成之組合鋼 板樁1相互連結而形成之連續壁5。於本實施形態，連續壁5 係壓入中間層75内而成’且透過各組合鋼板樁1之接頭部14 相互連結而構成一個壁體。又，該連續壁5係藉由連續地配 置相同之組合鋼板樁1而構成。然後，該組合鋼板樁1之下 端任一者皆貫入到存在於中間層75下方之支撐層76。又， 該閉合構件20如第4圖所示可安裝於第1帽型鋼板樁10之全 長’也可只於帽型鋼板樁10之長度方向的一部分安裝。 其次，參照第5圖就有關本發明之第3實施形態予以說 明。第5圖係顯示以具有上述第1實施形態說明之構成的組 合鋼板樁1、與第3帽型鋼板樁143形成之連續壁6。於本實 施形態中，連續壁6係壓入至地盤的中間層75内而形成。 又，透過接頭部14將組合鋼板樁1與帽型鋼板樁143相互連 結而構成一個壁體。該連續壁6係構成只有組合鋼板樁1貫 入到地盤的支撐層76内，且第3帽型鋼板樁143未到達到支 撐層76。又，該閉合構件20如第5圖所示可安裝於第1帽型 鋼板樁10之全長，也可只安裝於鋼板樁長度方向之一部分 12 201033441 (只埋入到支撐層76的部分）。 接著，就有關將由上述構成而成之組合鋼板樁1壓入至 地下的方法予以說明。 第6A圖、第6B圖係顯示壓入本發明之組合鋼板樁時所 使用之壓入機的一個例子。 壓入機4具有夾甜（clamp) 41、鞍座（saddle) 42、主 汽缸43、槐桿（mast) 44及夾具45。夾钳41具有用以抓住 ^ 已埋入之組合鋼板樁1之頭部的機構、與用以在該等組合鋼 板樁1上自走的功能。鞍座42設有用以使桅桿44於前後方向 移動的移動機構，且多安裝有壓入機4用以實行各種動作之 動力源。主汽缸43係構成可朝圖中上下方向自由驅動，且 將以夾具45把持之組合鋼板樁丨壓入地下。亦即，依據該主 汽缸43之動力使夾具45下降，而將組合鋼板樁1壓入地下。 由如此構成而成之壓入機4利用已埋入地盤中之組合 鋼板樁1的拉拔阻力，藉由油壓將下一組合鋼板樁丨埋入到 地下。 第6B圖係從上看壓入機4的圖式。夾具45係藉由將第i 帽型鋼板樁10之一對臂板部13朝圖中箭頭D3所示的方向押 壓而把持組合鋼板樁丨。然後，於該夾具45内部設有開口 46。該開口46係通常設定具有間隙而不與通常之鋼板樁的 腹板部或翼板部接觸。但是，該開口46係假想通常之鋼板 樁而設疋者。在考量該開口部如之尺寸下，希望考慮第6B 圖所示之圓47。該圓47係依據壓入機i之爽具45的形狀而導 出者。詳細來說，該圓47係考慮在圖中箭頭D3所示之方向 13 201033441 被把持之臂板部13的位置及接頭部14的位置、且更考慮形 成開口46之周圍的侧壁48等之位置而導出者。 於本發明中，藉由使用對應圓47之尺寸的夾具45，而 可把持組合鋼板樁1。特別是，該組合鋼板樁1係如上述為 將全部收入於圓47之内部的形狀。如第1圖所示，圓47係以 連結δ又於各臂板部13前端之一對接頭部14的嵌合轴51之中 間點為令心52 ’進而由與帽型鋼板樁10之全寬度Τ相等的直 徑而成。換言之，圓47係具有以連結帽型鋼板樁1〇之一對 接頭部的線為直徑的假想圓。 在適用本發明之組合鋼板樁丨中，使閉合構件2〇之内側 與帽型鋼板樁1〇1之内側相對面而安裝閉合構件。然後，設 计成將已安裝之閉合構件2〇之全部收入於圓47之内部。 又’在本發明中，特別是預先進行閉合構件20之尺寸調整 而設計，以將組合鋼板樁1之全部收入於圓47之内部。其結 果，而可以於壓入工法中頻繁使用之壓入機的夾具47把持 組合鋼板樁1。亦即，在本發明中，可原原本本地利用習知 之壓入機4 ’依據所謂的壓入工法而實現組合鋼板樁1之壓 入。因此’由於可原原本本地適用既存之設備、裂置，不 需特別的設備投資，而可抑制施工成本之上昇。 又’在適用本發明之組合鋼板樁1中，藉由第1帽型鋼 板樁10與閉合構件20而形成之閉合斷面3丨係形成於内部。 其結果’在將組合鋼板播1壓入地下時，可使土塊進入該閉 合斷面31内部，進而將進入到該閉合斷面31内之土塊壓 實，而可使該組合鋼板樁1閉塞。特別是，如上述，藉由使 14 201033441 該組合鋼板樁1之下端貫入直到支撐層76内，特別是可將支 撐層76之土砂進入位於該組合鋼板椿丨之下端的閉合斷面 31内。其結果，藉由進入之支撐層76的土砂，而可壓實組 合鋼板樁1之下端，且可獲得高垂直支撐力。 如此’適用本發明之組合鋼板樁1可確實發揮高垂直支 樓力，且可實現壓入機之夾具的把持，而該壓入機係用於 在帽型鋼板樁之施工中所使用之泛用壓入工法。 而且’適用本發明之組合鋼板樁1並不限於上述之實施 態樣者’例如’如以下所說明之變化例也包含於本發明。 例如’如第7A圖、第7B圖所示，也可使用具有斷面U 字形狀之U型鋼板樁80作為閉合構件2〇來構成組合鋼板樁 1 ° U型鋼板樁8〇具有腹板部81、一體設置以於該腹板部81 之兩側向圖中内側傾斜之翼板部81、及形成於翼板部82之 前端的接頭83。第7A圖係顯示將位於該U型鋼板樁80之端 部的接頭83安裝於帽型鋼板樁10之翼板部12的例子，第7B 圖係顯不將位於u型鋼板樁8〇之端部的接頭83安裝於帽型 鋼板樁10之臂板部13的例子。於該等例子中，藉由第丨帽型 鋼板樁10與閉合構件2〇可於内部作出閉合斷面31，而可獲 知因壓實支撐層76之土砂而產生之高垂直支擇力。又，於 °亥第7八圖、第7B圖的例子中，也調整以將組合鋼板樁1之 斷面收人於®47内’所以藉由具有對應圓47尺寸之夾具45 的壓入機4，而可把持組合鋼板樁1，且使其壓入地下。 而且，閉合構件20之側端部也可安裝於第丨帽塑鋼板樁 ίο之是板部13或翼板部12之任一者，也可一端安裝於臂板 15 201033441 部，另一端安裝於翼板部。 又’例如如第8圖所示，也可使用第2帽型鋼板播衫作 為閉合構件2G以構成組合鋼板樁卜於該第8圖中就有關 與上述第!圖相同之構成要素、構件，藉由引用第i圖之説 明而在以下省略說明。作為閉合構件2G之第2帽型鋼板樁 85，翼板部22係-體設置以於腹板抑之兩側向圖中内側 傾斜，且臂板⑽魏該翼板部22之料平行腹板部減 置，並且接頭24係進-步設於該臂板部之前端。然後，相 當於該閉合構件2G端敎賴μ係安裝於第丨帽型鋼板播 1〇之臂板和。㈣實_態，組合峨樁1之斷面形狀亦 係設計以收人於圓47内。而且，將沿圓47f曲之曲板作為 閉合構件使用時，由於可在以夾具45可把持的範圍作最大 限的閉合面積，因此可發揮高垂直支推力。 又，例如如第9A圖所示，也可使用折板86作為閉合構 件20，如第9B圖所示，也可使用折板87作為閉合構件2〇。 折板86於4處具有折彎的形狀，且分別形成面91、％、93、 97、98。而且，該折板86之側端部安裝於第丨帽型鋼板樁1〇 之臂板部13。折板87於2處具有折彎的形狀，且分別形成面 糾、95。然後，該折板87之端部安裝於第丨帽型鋼板樁⑺之 臂板部13。當然，該等折板86、87之端部也可安裝於翼板 部12。於該實施形態，組合鋼板樁丨之斷面形狀也可收入於 圓47内。 ' 再者，如第10A圖、第10B圖所示，也可使用彎曲成斷 面曲線狀之曲板131、132作為閉合構件20β在第1〇A圖之例 16 201033441 子中’曲板131之端部安裝於臂板部π，又，在第10B圖的 例子中’曲板131之端部安裝於翼板部12。於該實施形態， 組合鋼板樁1〇之斷面也收入於圓47内。比較第9A圖與第9B 圖時，折板86較折板87成沿著圓47的形狀。因此，由於第 9A圖所示之組合鋼板樁具有更大之閉合斷面積，所以可發 揮高垂直支撐力。 再者，如第11圖所示，也可使用一片鋼板136作為閉合 構件20。該鋼板136之端部是在臂板部π之底面被安裝。於 該實施形態，組合鋼板樁1之斷面也收入於圓47内。而且， 曲板131如第10A圖、第10B圖所示，藉由使接近沿圓47的 形狀，而在夾具45可把持的範圍可為更大的閉合斷面積。 因此，可發揮高垂直支撐力。 以上，就本發明之較佳實施形態進行說明，但是本發 明之技術範圍並不只限定於上述之實施形態，在不逸脫本 發明之趣旨的範圍，也包含在上述之實施形態中加入各種 的變更。亦即’在上述實施形態所舉的具體構成等只不過 是一例，可適宜地變更。 【產業上的利用可能性】 依據本發明之組合鋼板樁、使用組合鋼板樁之連續 壁、及組合鋼板格之壓入方法，由於可確實發揮高垂直支 撐力，且在帽型鋼板樁施工所用之泛用壓入工法中使用之 壓入機的夾具可產生把持，因此產業之利用可能性大。 【圖式簡單說明：！ 第1圖係有關本發明之第1實施形態之組合鋼板樁的斷 17 201033441 面圖。 第2圖係前述組合鋼板樁之立體圖。 第3圖係有關本發明之第2實施形態之連續壁的俯視 圖。 第4圖係前述連續壁之立體圖。 第5圖係有關本發明之第3實施形態之連續壁的立體 圖。 第6A圖係就有關於壓入工法中所使用之一例的壓入機 用以說明的圖式。 第6B圖係前述壓入機之俯視圖。 第7A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用U型鋼板樁作為閉合構件之圖 式。 第7B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用U型鋼板樁作為閉合構件之圖 式。 第8圖係係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用帽型鋼板樁作為閉合構件之圖 式。 第9A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用具有4處折部之折板作為閉合構 件之圖式。 第9B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用具有2處折部之折板作為閉合構 201033441 件之圖式。 第10 A圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用彎曲成曲線狀之曲板作為閉合 構件之圖式。 第10B圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用彎曲成曲線狀之曲板作為閉合 構件之圖式。 第11圖係顯示有關本發明第1實施形態之組合鋼板樁 的變形例之圖式，且係使用一片鋼板作為閉合構件之圖式。 第12(a)、（b)圖係就有關習知技術用以說明之圖式。 【主要元件符號說明】 1...組合鋼板樁 24...接頭 4...壓入機 31...閉合斷面 5...連續壁 41...央钳 6...連續壁 42...鞍座 10...第1帽型鋼板樁 43...主汽缸 11...腹板部 44...梳桿 12...翼板部 45...夾具 13...臂板部 46...開口 14...接頭部 47··.圓 20…閉合構件 48...側壁 21...腹板部 51...彼合轴 22...翼板部 52...中間點 23...臂板部 75...中間層 19 201033441 76…支撐層 97···面 80...U型鋼板樁 98".面 81...腹板部 101...組合鋼板樁 82...翼板部 102...鋼板樁 83...接頭 103...閉合鋼材 85...第2帽型鋼板樁 131...曲板 86...折板 132…曲板 87...折板 136...鋼板 91."面 143…第3帽型鋼板樁 92·.·面 D3…箭頭 93...面 I...内侧 94...面 〇...外側 95. ·.面 T...全寬度201033441 VI. DESCRIPTION OF THE INVENTION: [Spray of the genus of the genus of the genus of the genus] The invention relates to a combined steel sheet pile, a continuous wall using a combined steel sheet pile, and a pressing method of the combined steel sheet pile. The composite steel sheet pile of the present invention is used as a structural member for a retaining wall, a foundation structure, a bank of a harbor bend river, a bank wall, and a water retaining wall. In particular, the present invention relates to a combined steel sheet pile which can exhibit a high vertical supporting force and which is suitable for being embedded in a mechanical press, a continuous wall of a combined steel sheet pile, and a press-in method of a combined steel sheet pile. [Previously good winter; j Background of the invention is to use a steel sheet pile as a retaining wall in the field of civil engineering, a foundation structure, a bank of a harbor bend, a bank, and a structural member for a water retaining wall, and the joint portion is provided in the width direction thereof. Both ends. The wall surface is formed by embedding a plurality of steel sheet piles in the ground plate to fit the joint portions of the adjacent steel sheet piles. In recent years, for example, Patent Documents 1 and 2 propose a steel sheet pile as follows to improve the vertical supporting force of the steel sheet pile. In the technique disclosed in Patent Document 1, for example, as shown in Fig. 12, the closed steel portion 103 is joined to the front end portion of the steel sheet pile 1〇2 to form a closed section formed by the steel sheet pile 102 and the closed steel material 103. Therefore, when the combined steel sheet pile 101 is buried in the ground, the clod that has entered the closed section is compacted and the front end of the steel sheet pile 101 is closed. Therefore, high vertical support force (front end support force) can be obtained. The larger the closed cross-section, the more the front end support force can be increased. 3 201033441 However, when the steel sheet pile is penetrated into the ground, the so-called vibratory pile driver method in which the vibration is applied to the ground through the steel sheet pile to cause a fluidization phenomenon or a sensitization phenomenon to make the steel sheet pile easy to penetrate is frequently used. In the technique disclosed in Patent Document 1, the steel sheet pile 101 can be penetrated into the ground by the vibratory pile driver method. However, the combined steel sheet pile 101 is formed by a press-in method (the combination of the steel sheet pile 101 to be pressed into and pressed by the press machine, and the combined steel sheet pile 101 is pressed into the ground by applying a static load to the cylinder) When the underground material 103 is buried in the ground, the size of the closed steel material 103 is increased, and the combined steel sheet pile 101 cannot be gripped by the chuck. Therefore, in order to hold the combined steel sheet pile 101, a special dedicated press-in machine must be additionally used. Further, according to the technique disclosed in Patent Document 2, the cap type steel sheet pile to which the Η-shaped steel is attached can be gripped by the chuck of the universal press machine used for the construction of the hat-shaped steel sheet. Specifically, the steel sheet pile disclosed in the technique disclosed in Patent Document 2 is designed to be centered on an intermediate point of a wire (fitting axis) that is connected to a joint portion provided at a tip end of a pair of arm plate portions, and is further The inside of a circle formed by the diameter of the steel sheet pile having the same full width. However, according to the technique disclosed in Patent Document 2, the steel sheet pile can be buried in the ground based on the press-in method, but the closed section cannot be formed. As a result, it is impossible to ensure a high vertical straight supporting force which causes the clod to enter the closed section and compact it. [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2008-175 No. 29-A. SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] The present invention has been made in view of the above problems. The object of the present invention is to provide a combination of a steel sheet pile and a combination of a press machine which can be used for a general-purpose press-in method which can be used for a hat-type steel sheet coil construction. The continuous wall of the steel sheet pile and the method of pressing the combined steel sheet pile. In order to solve the above problems, the present invention uses the following means. (1) The first embodiment of the present invention is a combined steel sheet pile having a first hat-shaped steel sheet winding member, the first hat-shaped steel sheet pile having a web portion and a pair of both end portions of the web portion a wing plate portion, a pair of arm plate portions respectively provided at end portions of the pair of blade portions, and a pair of joint portions respectively formed at end portions of the pair of arm plate portions, and the closing member is attached to the hinge member a side portion of at least a portion of the longitudinal direction of the second hat-shaped steel sheet pile. The closed cross-sectional shape formed by the first hat-shaped steel sheet pile and the closing member is included in a circle having a diameter of a line connecting the pair of joint portions. (2) In the composite steel sheet pile according to the above (1), the side portion of the closing member may be attached to the arm plate portion or the wing portion of the first cap type steel sheet pile. (3) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be a second hat type steel sheet pile. 5 201033441 (4) The composite steel sheet pile recorded in the above (1) or (2), wherein the closing member may be a U-shaped steel sheet pile. (5) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be a joint portion to cut the steel sheet pile. (6) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be a steel sheet. (7) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be a folded sheet of one or more places. (8) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be a curved curved plate. (9) The composite steel sheet pile according to (8) above, wherein the curved plate is curved along the circle. (10) The composite steel sheet pile according to the above (1) or (2), wherein the closing member may be any means such as welding, bonding, bolting, rivet, screw joining, and bonding of the tacks. Is installed. (11) In the second embodiment of the present invention, at least two continuous walls of the combined steel sheet pile according to the above (1) or (2) are used. The joint portion of the at least two combined steel sheet piles is joined, and the lower end of the continuous wall is penetrated into the support layer. (12) A third embodiment of the present invention is the continuous wall of the composite pile according to the above (1) or (2). The joint portion of the 帽3 hat type steel sheet pile is coupled to the joint portion of the first hat type steel sheet pile, and at least the lower end of the combined steel sheet is inserted into the support layer. (13) The fourth embodiment of the present invention is the method for pressing a nuclear steel sheet pile according to the above (1) or (1), which has a step of holding the pair of arm plates by a refresher of a pressing machine, and borrowing The pressing step of pressing the lower end of the combined steel sheet pile to the support layer of the ground plate by the aforementioned press machine. [Effect of the Invention] In the invention having the above configuration, the size of the closing member is adjusted to collect the combined steel sheet pile inside the circle. As a result, the combined steel sheet can be gripped by the jig of the pressing machine frequently used in the pressing method. Also, in the present invention, a conventional steel sheet pile having a closed cross section can be press-fitted by a conventional press machine according to a so-called erection method. Therefore, since the existing equipment and devices can be used as they are, no special equipment investment is required, and the increase in construction cost can be suppressed. Further, in the composite steel sheet pile to which the present invention is applied, the closed cross-section formed by the first hat-shaped steel sheet and the closing member is further formed centering on the intermediate point of the fitting wheel connecting the pair of joint portions. The inside of a circle formed by a diameter equal to the full width of the first cap-shaped steel sheet roll. As a result, when the group ® steel sheet pile is pressed into the ground, the soil block can be made to enter the inside of the closed section. The clods entering the closed section are then compacted to occlude the composite steel sheet. In particular, by inserting the lower end of the composite steel sheet pile into the support floor as described above, in particular, the soil sand of the support layer can be introduced into the closed section at the lower end of the composite steel sheet pile. As a result, the lower end of the steel sheet pile 1 can be compacted by the soil sand entering the support layer and high straight support can be obtained. Thus, the combined steel sheet pile to which the present invention is applied can surely exert a high vertical supporting force, and can realize the gripping of the press machine for the general-purpose pressure used in the construction of the hat-shaped steel sheet pile. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a composite steel sheet pile according to a first embodiment of the present invention. Fig. 2 is a perspective view of the aforementioned combined steel sheet pile. Fig. 3 is a plan view showing a continuous wall according to a second embodiment of the present invention. Figure 4 is a perspective view of the aforementioned continuous wall. Fig. 5 is a perspective view showing a continuous wall according to a third embodiment of the present invention. Fig. 6A is a view for explaining the press machine used in one example of the press-in method. Fig. 6B is a plan view of the aforementioned press machine. Fig. 7A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a U-shaped steel sheet pile is used as a closing member. Fig. 7B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a U-shaped steel sheet pile is used as a closing member. Fig. 8 is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a hat type steel sheet pile is used as a closing member. Fig. 9A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a folded plate having four folded portions is used as a closed configuration 201033441. Fig. 9B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a folding plate having two folded portions is used as a closed member. Fig. 10A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a curved curved plate is used as a closed member. Fig. 10B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a curved curved plate is used as a closed member. Fig. 11 is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a single steel sheet is used as a closing member. Figures 12(a) and (b) are diagrams for explaining the prior art. C EMBODIMENT 3 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [Formation for Carrying Out the Invention] The inventors of the present invention can achieve a high vertical support force and can realize a general pressure for use in a cap type steel sheet pile construction. The clamp of the press machine of the input method is held, and the closing member is fixed to the cap-shaped steel sheet pile, and it is necessary to find the shape and size of the inside of the circle which is taken in the cross section of the press machine according to the shape of the jig of the press machine. point. Therefore, the mounting and closing member is created to close the inner side opening of the first hat-shaped steel sheet pile having a cross-sectional hat shape, and the closing members are all housed in a pair of the front ends of the respective arm plate portions. A combination steel sheet pile having a shape of a circle inside the center of the fitting shaft of the joint portion and having a diameter equal to the full width of the first cap 201033441 steel sheet pile. In the following, the steel sheet pile used as a structural member for the retaining wall, the foundation structure, the bank of the harbor, the shore wall, and the water retaining wall, and the continuous wall side of the laminated steel sheet pile are used. The drawings and the detailed description are to be considered as a preferred embodiment of the invention. First, the first embodiment of the present invention will be described with reference to Figs. 1 and 2 . Fig. 1 is a cross-sectional view showing a combination of a steel sheet pile 1 of the present embodiment. In W, a shows the longitudinal direction of the combined steel sheet pile 1 (the direction in which the combined steel sheet pile is buried), the b-shaped composite steel sheet in the width direction, and the thickness direction of the c-series combined steel sheet pile i. Further, in the present invention, the side of the concave portion of the hat-shaped steel sheet pile or the closing member is referred to as the inner side (I), and the side of the convex portion is referred to as the outer side. The group port steel sheet pile 1 has a first hat type steel sheet pile 10 and a closing member 20. The first hat-type steel sheet pile 1G has a body-formed web portion η, a pair of wing plate material _13, and a pair of joint portions 14. - The pair of flap portions _ are connected to be inclined from both sides of the web portion η. The X, _ pair arm plate portion (10) is connected by the front end parallel web portion u of the flap portion 12. The pair of joint portions 14 are divided into a f-plate and a front end. This is to correct the joint 'the middle-turning correction and the other joint portion M have a point-symmetric cross-sectional shape. The joint portion 14 has a shape that is compatible with the other joint portions 14 of the adjacent other steel sheet coils i, and particularly, the fitting portion is formed so as not to be separated from each other by the joint portion M to improve the fitting strength. Further, in the first embodiment, the i-th steel plate pile 1 used in the present embodiment is rolled and pressed, and the joint portion 14 is formed into a shape of Na, and the strength of the joint portion 14 is increased.丨(4) 峨 pile 10 minus (4) A steel sheet pile made of one of the steel sheets which has been conventionally known for cold bending is used to improve the bending rigidity of the entire steel sheet pile including the joint portion. The closing member 20 of the present embodiment has a web portion 21 which is connected to the flap portion 22 so as to be inclined from the both sides of the web portion 21 toward the inner side (1) of the napkin, and from the front end of the pair of flap portions 22 The arm plate portion 23 is connected to the parallel web portion 21. The closing member 2A can also be formed by cutting the tip end of the plate portion of the second cap-shaped steel sheet pile (not shown) (the joint portion cuts the steel sheet). The closing member 20 is mounted to close the inner open section of the second hat-shaped steel sheet pile lQ. The closing member 2G is mounted with the _ side surface opposite to the inner side surface of the second hat type steel plate. As a result, a closed section 31 having an expansion is formed in the center. Further, the arm plate portion η corresponding to the end portion of the closing member 20 is attached in a state in which the bottom surface thereof is in contact with the arm plate portion 13 of the first hat-shaped steel sheet pile 1G. Further, the arm plate portion 23 corresponding to the end portion of the closing member 2G may be threaded to the flap plate to replace the arm plate portion 13 of the first hat type steel sheet pile. Further, the end portion of the closing member 2A may be attached to the flap portion 12 by the arm plate portion 13n. Further, as shown in Fig. 2, the closing member 20 may be attached over the entire length of the i-th hat type steel sheet pile 1 or may be attached only to a part of the longitudinal direction of the second hat type steel sheet pile 1G. Incidentally, the connection of the closure member 20 to the second hat-shaped steel sheet pile 1 can be applied, for example, to welding, bonding, bolts, rivets, screws, and tacks. Further, the connection between the first cap type steel sheet pile 1〇 and the closing member 2〇 may be carried out at the factory, or may be performed at the construction site before or during the embedding. 201033441 The shape of the closing member 10 must be all stored in a joint; the intermediate point 52 of the fitting axis of one of the 'plate portions 13' and the end of the joint portion 14 is "" and the first cap type The inside of the circle 47 in which the full width τ of the steel sheet pile is equal to the diameter 。, and the closing member 20 may be formed by folding the flap portion 21, the flap portion Μ, and the arm portion 23 Next, a second embodiment of the present invention will be described with reference to Figs. 3 and 4. Fig. 3 and Fig. 4 show a continuous wall formed by joining the steel sheet piles 1 having the above-described configuration to each other. 5. In the present embodiment, the continuous wall 5 is press-fitted into the intermediate layer 75 and the joint portions 14 of the respective steel sheet piles 1 are connected to each other to form a wall body. Further, the continuous wall 5 is continuously formed. The same combination steel sheet pile 1 is disposed. Then, either of the lower ends of the combined steel sheet pile 1 penetrates into the support layer 76 existing under the intermediate layer 75. Further, the closing member 20 can be installed as shown in Fig. 4. The full length of the first hat type steel sheet pile 10 can also be used only for the cap type steel plate. A part of the longitudinal direction of the pile 10 is attached. Next, a third embodiment of the present invention will be described with reference to Fig. 5. Fig. 5 shows a combined steel sheet pile 1 and the structure having the configuration described in the first embodiment. The continuous wall 6 formed by the hat-shaped steel sheet pile 143. In the present embodiment, the continuous wall 6 is press-fitted into the intermediate layer 75 of the ground plate. Further, the combined steel sheet pile 1 and the cap type steel sheet pile are transmitted through the joint portion 14. The 143 is connected to each other to form a wall body. The continuous wall 6 constitutes only the support steel sheet pile 1 penetrating into the support layer 76 of the ground plate, and the third hat type steel sheet pile 143 does not reach the support layer 76. Further, the closing member 20 As shown in Fig. 5, it can be attached to the entire length of the first hat-type steel sheet pile 10, or it can be attached only to one of the longitudinal direction of the steel sheet pile 12 201033441 (only the portion buried in the support layer 76). A method of pressing the formed steel sheet pile 1 into the ground will be described. Fig. 6A and Fig. 6B are views showing an example of a press machine used for press-fitting the combined steel sheet pile of the present invention. The press machine 4 has Clamp 41 a saddle 42, a master cylinder 43, a mast 44, and a clamp 45. The clamp 41 has a mechanism for grasping the head of the combined steel sheet pile 1 that has been embedded, and is used in combination therewith. The self-propelled function of the steel sheet pile 1. The saddle 42 is provided with a moving mechanism for moving the mast 44 in the front-rear direction, and is additionally provided with a power source for performing various operations by the press machine 4. The main cylinder 43 is configured to In the figure, the upper and lower directions are freely driven, and the combined steel sheet pile held by the jig 45 is pressed into the ground. That is, the jig 45 is lowered in accordance with the power of the main cylinder 43, and the combined steel sheet pile 1 is pressed into the ground. The formed press machine 4 uses the drawing resistance of the combined steel sheet pile 1 embedded in the ground plate to embed the next combined steel sheet pile raft into the ground by hydraulic pressure. Fig. 6B is a view of the press machine 4 as seen from above. The jig 45 grips the combined steel sheet pile by pressing one of the i-th cap type steel sheet piles 10 against the arm plate portion 13 in the direction indicated by an arrow D3 in the figure. Then, an opening 46 is provided inside the jig 45. The opening 46 is usually set to have a gap and is not in contact with the web portion or the flap portion of a conventional steel sheet pile. However, the opening 46 is a imaginary steel sheet pile. Considering the size of the opening, it is desirable to consider the circle 47 shown in Fig. 6B. This circle 47 is guided by the shape of the cooler 45 of the press machine i. Specifically, the circle 47 takes into consideration the position of the arm plate portion 13 and the position of the joint portion 14 which are held in the direction 13 201033441 indicated by the arrow D3 in the figure, and more preferably considers the side wall 48 around the opening 46. Location and exporter. In the present invention, the combined steel sheet pile 1 can be held by using the jig 45 corresponding to the size of the circle 47. In particular, the combined steel sheet pile 1 has a shape in which all of the steel sheet pile 1 is contained inside the circle 47 as described above. As shown in Fig. 1, the circle 47 is connected to δ and the middle point of the fitting shaft 51 of one of the front end portions of the respective arm plate portions 13 to the joint portion 14 as the center of the heart 52' and further with the cap type steel sheet pile 10 Width equal to the diameter of the diameter. In other words, the circle 47 has an imaginary circle having a diameter connecting a line of one of the cap-shaped steel sheet piles 1 to the joint portion. In the composite steel sheet pile to which the present invention is applied, the inside of the closing member 2 is placed opposite the inner side of the cap-shaped steel sheet pile 1〇1 to mount the closing member. Then, it is designed to collect all of the installed closing members 2〇 inside the circle 47. Further, in the present invention, in particular, the size adjustment of the closing member 20 is performed in advance to collect all of the combined steel sheet pile 1 inside the circle 47. As a result, the combined steel sheet pile 1 can be gripped by the jig 47 of the press machine which is frequently used in the press-fit method. That is, in the present invention, the press-in of the combined steel sheet pile 1 can be realized by the conventional press-in machine 4' in accordance with the so-called press-in method. Therefore, since the existing equipment and cracking can be applied locally, no special equipment investment is required, and the increase in construction cost can be suppressed. Further, in the composite steel sheet pile 1 to which the present invention is applied, the closed section 3 formed by the first hat-shaped steel sheet pile 10 and the closing member 20 is formed inside. As a result, when the combined steel sheet 1 is pushed into the ground, the soil block can be made to enter the inside of the closed section 31, and the clods entering the closed section 31 can be compacted, and the combined steel sheet pile 1 can be closed. In particular, as described above, by allowing 14 201033441 the lower end of the combined steel sheet pile 1 to penetrate into the support layer 76, in particular, the soil sand of the support layer 76 can be entered into the closed section 31 at the lower end of the combined steel sheet. As a result, the lower end of the steel sheet pile 1 can be compacted by the soil sand entering the support layer 76, and a high vertical support force can be obtained. Thus, the composite steel sheet pile 1 to which the present invention is applied can surely exert a high vertical branching force and can realize the holding of the jig of the press machine, and the press machine is used for the pan used in the construction of the cap type steel sheet pile. Use the press method. Further, the composite steel sheet pile 1 to which the present invention is applied is not limited to the above-described embodiment. For example, variations as described below are also included in the present invention. For example, as shown in Fig. 7A and Fig. 7B, a U-shaped steel sheet pile 80 having a U-shaped cross section may be used as the closing member 2〇 to form a combined steel sheet pile 1° U-shaped steel sheet pile 8〇 having a web portion 81. A wing portion 81 that is inclined toward the inner side in the drawing on both sides of the web portion 81 and a joint 83 formed at the front end of the flap portion 82 are integrally provided. Fig. 7A shows an example in which the joint 83 located at the end of the U-shaped steel sheet pile 80 is attached to the wing portion 12 of the cap-shaped steel sheet pile 10, and the seventh drawing is not shown at the end of the U-shaped steel sheet pile. An example in which the joint 83 of the portion is attached to the arm plate portion 13 of the cap-shaped steel sheet pile 10 is described. In these examples, the closed section 31 can be made internally by the second hat type steel sheet pile 10 and the closing member 2, and the high vertical force which is generated by compacting the soil sand of the support layer 76 can be known. In addition, in the example of the 7th and 7th drawings of the Haihe, the cross section of the combined steel sheet pile 1 is also adjusted to be in the '47', so the press machine having the jig 45 having the size of the corresponding circle 47 is used. 4, and the combined steel sheet pile 1 can be held and pressed into the ground. Further, the side end portion of the closing member 20 may be attached to either the third portion or the blade portion 12, or one end may be attached to the arm plate 15 201033441, and the other end may be attached to the other end. Wing part. Further, for example, as shown in Fig. 8, a second hat type steel shirt can be used as the closing member 2G to constitute a combined steel sheet pile. In the eighth drawing, the same constituent elements and members as those of the above-mentioned Fig. 8 are used. The description is omitted below by the description of the first drawing. As the second hat-shaped steel sheet pile 85 of the closing member 2G, the flap portion 22 is disposed so as to be inclined on both sides of the web, and the arm plate (10) is parallel to the web of the flap portion 22. The portion is lowered, and the joint 24 is stepped on the front end of the arm plate portion. Then, the arm member of the second cap type steel plate is attached to the closing member 2G. (4) In the actual state, the sectional shape of the composite pile 1 is also designed to be collected in the circle 47. Further, when the curved plate along the circle 47f is used as the closing member, since the closed area which can be grasped by the jig 45 can be minimized, the high vertical support thrust can be exerted. Further, for example, as shown in Fig. 9A, a flap 86 may be used as the closing member 20. As shown in Fig. 9B, a flap 87 may be used as the closing member 2''. The flaps 86 have a bent shape at four locations and form faces 91, %, 93, 97, 98, respectively. Further, the side end portion of the flap 86 is attached to the arm plate portion 13 of the second hat type steel sheet pile 1 . The flap 87 has a bent shape at two places, and forms a face correction 95, respectively. Then, the end of the flap 87 is attached to the arm portion 13 of the second hat type steel sheet pile (7). Of course, the ends of the flaps 86, 87 can also be attached to the flap portion 12. In this embodiment, the cross-sectional shape of the combined steel sheet pile can also be received in the circle 47. Further, as shown in FIG. 10A and FIG. 10B, curved plates 131 and 132 curved in a cross-sectional shape may be used as the closing member 20β in the example of FIG. 1A. The end portion is attached to the arm plate portion π, and in the example of Fig. 10B, the end portion of the curved plate 131 is attached to the flap portion 12. In this embodiment, the cross section of the combined steel sheet pile 1 is also included in the circle 47. When comparing the 9A and 9B drawings, the flap 86 is formed in the shape of the circle 47 with respect to the flap 87. Therefore, since the combined steel sheet pile shown in Fig. 9A has a larger closed sectional area, a high vertical supporting force can be exerted. Further, as shown in Fig. 11, a single steel plate 136 can also be used as the closing member 20. The end portion of the steel plate 136 is attached to the bottom surface of the arm plate portion π. In this embodiment, the cross section of the combined steel sheet pile 1 is also received in the circle 47. Further, as shown in Figs. 10A and 10B, the curved plate 131 can be gripped by the jig 45 by a shape close to the circle 47, and can be a larger closed sectional area. Therefore, high vertical support force can be exerted. The preferred embodiments of the present invention have been described above, but the technical scope of the present invention is not limited to the above-described embodiments, and various modifications are also included in the above embodiments without departing from the scope of the present invention. change. That is, the specific configuration and the like given in the above embodiment are merely examples, and can be appropriately changed. [Industrial Applicability] According to the composite steel sheet pile of the present invention, the continuous wall using the combined steel sheet pile, and the press-in method of the combined steel sheet, the high vertical support force can be surely exhibited, and it is used in the construction of the cap type steel sheet pile. The clamp of the press machine used in the press-fit method can generate grip, and therefore the industrial use possibility is large. [Simple diagram:! Fig. 1 is a cross-sectional view showing a sectional steel sheet pile according to a first embodiment of the present invention. Fig. 2 is a perspective view of the aforementioned combined steel sheet pile. Fig. 3 is a plan view showing a continuous wall according to a second embodiment of the present invention. Figure 4 is a perspective view of the aforementioned continuous wall. Fig. 5 is a perspective view showing a continuous wall according to a third embodiment of the present invention. Fig. 6A is a view for explaining the press machine used in one example of the press-in method. Fig. 6B is a plan view of the aforementioned press machine. Fig. 7A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a U-shaped steel sheet pile is used as a closing member. Fig. 7B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a U-shaped steel sheet pile is used as a closing member. Fig. 8 is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a hat type steel sheet pile is used as a closing member. Fig. 9A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a folding plate having four folded portions is used as a closed member. Fig. 9B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a folded plate having two folded portions is used as a closed configuration 201033441. Fig. 10A is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a curved curved plate is used as a closed member. Fig. 10B is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a curved curved plate is used as a closed member. Fig. 11 is a view showing a modification of the combined steel sheet pile according to the first embodiment of the present invention, and a single steel sheet is used as a closing member. Figures 12(a) and (b) are diagrams for explaining the prior art. [Main component symbol description] 1...combined steel sheet pile 24...joint 4...pressing machine 31...closed section 5...continuous wall 41...side clamp 6...continuous wall 42...saddle 10...first hat type steel sheet pile 43...main cylinder 11...web portion 44...comb 12...wing portion 45...clamp 13... Arm plate portion 46...opening 14...joint portion 47··.circle 20...closing member 48...side wall 21...web portion 51...combined shaft 22...wing portion 52...intermediate point 23...arm plate portion 75...intermediate layer 19 201033441 76...support layer 97···face 80...U-shaped steel sheet pile 98". surface 81... web portion 101 ...combined steel sheet pile 82...wing plate portion 102...steel sheet pile 83...joint 103...closed steel material 85...second hat type steel sheet pile 131...curved plate 86... Folding plate 132...curve plate 87...folding plate 136...steel plate 91."face 143...third hat type steel sheet pile 92··face D3...arrow 93...face I...inside 94. ..Face 〇...Outside 95. ·.Face T...full width
2020