公开(公告)号：JP2012077509A

公开(公告)日：2012-04-19

申请号：JP2010223515

申请日：2010-10-01

Applicant: Kajima Corp ,  Kfc Ltd ,  株式会社ケー・エフ・シー ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  DATE KENSUKE ,  YOKOTA YASUHIRO ,  TSUJI TAKASHI ,  OKABE TADASHI

IPC: E21D20/00

Abstract: PROBLEM TO BE SOLVED: To provide an expansion steel pipe lock bolt, which easily produces a sufficient frictional resistance to reliably reinforce natural ground, even such as soft bedrock, fractured bedrock, unconsolidated natural ground which are difficult to produce sufficient frictional resistance by expansion of a steel pipe.SOLUTION: When pressurized fluid is injected to a hollow steel pipe 2 to be inserted to a bored hole 31, the steel pipe 2 is allowed to expand so that an expansion steel pipe lock bolt 1 is anchored to natural ground 30 by peripheral surface friction with a hole wall 32. The expansion steel pipe lock bolt 1 is provided with the hollow steel pipe 2 of which surface has a plurality of regularly-arranged protrusions 5, preferably made from a steel plate material having a tensile strength of 400 to 510 N/mmand an elongation equal to or greater than 20%, having a striped pattern on the surface.

Abstract translation: 要解决的问题：提供一种膨胀钢管锁定螺栓，其容易产生足够的摩擦阻力以可靠地增强自然地面，甚至软基岩，断裂基岩，未固结的自然地面也难以产生足够的摩擦阻力 通过扩大钢管。 解决方案：当将加压流体注入中空钢管2以插入到钻孔31中时，允许钢管2膨胀，使得膨胀钢管锁定螺栓1通过外围设备锚固到自然地面30 与孔壁32的表面摩擦。膨胀钢管锁定螺栓1设置有中空钢管2，该中空钢管2的表面具有多个规则布置的突起5，优选由钢板材料制成，拉伸强度为400〜 510N / mm 2 ，伸长率等于或大于20％，表面具有条纹图案。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010174494A

公开(公告)日：2010-08-12

申请号：JP2009017644

申请日：2009-01-29

Applicant: Kajima Corp ,  Kfc Ltd ,  Taiheiyo Materials Corp ,  太平洋マテリアル株式会社 ,  株式会社ケー・エフ・シー ,  鹿島建設株式会社

Inventor： TANAKA TOSHIYUKI ,  YAMAMOTO TAKUJI ,  SATO TOSHIAKI ,  ISHIHARA ATSUSHI ,  OKABE TADASHI ,  SUGIYAMA AKINORI

IPC: E21D9/04 ,  E21D20/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for reinforcing natural ground in a tunnel, which enables construction to be efficiently performed by using a cement-based material, without use of an expensive urethane-based material.
SOLUTION: In this method for reinforcing the natural ground in the tunnel, mortar with quick-hardening properties is placed by being injected into the natural ground from the inside of the tunnel. A mortar-kneaded material, which is mixed in such a manner that compressive strength at a material age of 3 h is set at 5 N/mm
2 or more at a temperature in placing, is prepared and placed by means of a pump which continuously performs the kneading and pumping of the mortar in a uniaxial pipe through the use of the rotation of a screw axis member. Preferably, a water/powder ratio of the mortar is set to be in the range of 30-40%.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于加强隧道中的天然地面的方法，其使得能够通过使用水泥基材料有效地进行施工，而不使用昂贵的聚氨酯基材料。 解决方案：在这种加固隧道自然地面的方法中，通过从隧道内部注入自然地面，放置具有快速硬化特性的砂浆。 准备并放置以将材料年龄3小时的抗压强度在放置温度下设定为5N / mm 2 / SP以上的方式混合的砂浆混炼材料 通过使用螺杆轴构件的旋转连续地在单轴管道中进行揉捏和泵送的泵。 优选地，将砂浆的水/粉末比设定在30-40％的范围内。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009263882A

公开(公告)日：2009-11-12

申请号：JP2008111107

申请日：2008-04-22

Applicant: Kajima Corp ,  Kfc Ltd ,  株式会社ケー・エフ・シー ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  SATO TOSHIAKI ,  TANAKA TOSHIYUKI ,  ISHIHARA ATSUSHI ,  OKABE TADASHI

IPC: E21D9/04

Abstract: PROBLEM TO BE SOLVED: To provide a natural ground reinforcing method for forepiling work, face reinforcing work, etc., which reinforces the front natural ground when e.g. a tunnel, an underground opening, etc. are excavated, which enhances adhesion at the weak material age of a cement-based consolidation material for anchoring a reinforcing pipe as a reinforcing material, which prevents the outflow and runway of the consolidation material even in the production of sump water, which can bring about a great anchoring force even in the fragile condition of the natural ground by increasing rigidity so as to enhance a reinforcing effect. SOLUTION: In this natural ground reinforcing method, a drilled hole (h) is formed at a predetermined angle of elevation in the natural ground 1 ahead of a cutting face from inside a tunnel excavation space T; concurrently with that, a reinforcing pipe 6, which is formed by sequentially connecting one or more pipes with an ejection hole for the consolidation material to a peripheral wall, is driven into the drilled hole (h); and an anchoring or consolidation area 8 is formed for reinforcement in the reinforcing pipe 6 and the natural ground 1 around it by injecting the consolidation material into the reinforcing pipe 6. Characteristically, a material, in which glass fibers are mixed into the cement-based consolidation material such as cement milk and cement mortar, is used as the consolidation material. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种天然的地面加固方法，用于在例如天然地面加固前加固前天然地面的工作，面部加固等。 挖掘隧道，地下开口等，从而增强了水泥基固结材料在弱材料时代的附着力，用于锚固作为增强材料的加强管，即使在固结材料的流出和跑道 生产水槽，即使在自然地面的脆弱状态下，也可以通过增加刚性来提高锚固力，从而提高加固效果。 解决方案：在这种自然地面加固方法中，在隧道挖掘空间T内的切割面之前的天然地面1中以预定的角度形成钻孔（h） 同时，通过将一个或多个管道与用于固结材料的喷射孔顺序连接到周壁而形成的加强管6被驱动到钻孔中（h）; 并且通过将固结材料注入到加强管6中，形成用于加强加强管6和其周围的天然地面1的锚定或固结区域8.特征在于，将玻璃纤维混入基于水泥的 固结材料如水泥乳和水泥砂浆用作固结材料。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2014102128A

公开(公告)日：2014-06-05

申请号：JP2012253717

申请日：2012-11-19

Applicant: Kajima Corp ,  鹿島建設株式会社 ,  Kfc Ltd ,  株式会社ケー・エフ・シー

Inventor： YAMAMOTO TAKUJI ,  YOKOTA YASUHIRO ,  IMOTO ATSUSHI ,  OKABE TADASHI

IPC: G01L5/00 ,  E21D20/00

Abstract: PROBLEM TO BE SOLVED: To reduce looseness of a natural ground to the extent possible and eliminate a risk of omission of a washer when a measurement unit is removed from a lock bolt.SOLUTION: The natural ground change state detection structure includes: a washer 11 which is extrapolated in a projection of a lock bolt 10 from a natural ground 3; a nut screwed into a male screw part 10a of the projection so as not to come in contact with the washer 11; a housing 13 which is provided to come in contact with the washer 11, has the nut loosely inserted in its hollow part and has a communication part provided on its lateral side; a lock bolt axial force measuring unit which is extrapolated in the male screw part 10a so as to come in contact with the housing 13; and a nut for measuring 16 which is screwed into the male screw part 10a and supports contact of the lock bolt axial force measuring unit with the housing 13, and contact of the housing 13 with the washer 11. The nut is screwed by a screwing operation via the communication part to come in contact with the washer 11 and, in that state, the nut for measuring 16 is loosened so that the nut for measuring 16, the lock bolt axial force measuring unit and the housing 13 can be detached.

Abstract translation: 要解决的问题：为了尽可能减少自然地面的松动，并且当从锁定螺栓移除测量单元时，消除了垫圈的遗漏风险。解决方案：自然地面变化状态检测结构包括：垫圈11 其在锁定螺栓10从自然地面3的突起中外推; 螺母拧入突起的阳螺纹部分10a以不与垫圈11接触; 设置成与垫圈11接触的壳体13具有松动地插入其中空部分中并具有设置在其侧面上的连通部分的螺母; 锁定螺栓轴向力测量单元，其外插在外螺纹部分10a中以与壳体13接触; 以及用于测量的螺母16，其被螺纹连接到外螺纹部分10a中并且支撑锁定螺栓轴向力测量单元与壳体13的接触，以及壳体13与垫圈11的接触。螺母通过螺纹拧紧操作 通过通信部与垫圈11接触，在该状态下，松开测量用螺母16，从而能够拆卸测量用螺母16，锁定螺栓轴向力测量单元和壳体13。

公开(公告)号：JP2012188837A

公开(公告)日：2012-10-04

申请号：JP2011052250

申请日：2011-03-09

Applicant: Kajima Corp ,  Kfc Ltd ,  Kawato Seisakusho:Kk ,  株式会社ケー・エフ・シー ,  株式会社河戸製作所 ,  鹿島建設株式会社

Inventor： TOBE KEISUKE ,  YAMAMOTO TAKUJI ,  YOKOTA YASUHIRO ,  OKABE TADASHI

IPC: E21D9/04 ,  E21D20/00

Abstract: PROBLEM TO BE SOLVED: To provide a steel pipe for natural ground reinforcement, capable of reducing loads on a screw connecting part without increasing penetration resistance when constituting a reinforcing pipe while performing connection and installing it to natural ground, sufficiently securing thickness required for the screw connecting part while thinning the steel pipe, and surely obtaining required strength of the steel pipe for the natural ground reinforcement.SOLUTION: A steel pipe 31 for natural ground reinforcement includes: a main body 32; a reduced diameter part 33 provided on one end side of the main body in a reduced diameter and having a male screw 331 formed on an outer peripheral surface; and a female screw part 34 provided on the other end side of the main body 32 in the almost same outer diameter as that of the main body 32 and having a female screw 341 formed on an inner peripheral surface.

Abstract translation: 要解决的问题：提供一种用于自然地面加固的钢管，能够在执行连接并将其安装到自然地面的同时在构成加强管的同时减小螺钉连接部件上的载荷而不增加穿透阻力，足够确保所需的厚度 对于螺纹连接部分，同时使钢管变薄，并确保获得所需的强度用于自然地面加固的钢管。 解决方案：用于自然地面加固的钢管31包括：主体32; 减径部33，其以直径减小设置在主体的一端侧，并且具有形成在外周面上的阳螺纹331; 以及以与主体32大致相同的外径设置在主体32的另一端侧的内螺纹部34，并且具有形成在内周面上的内螺纹341。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2009249983A

公开(公告)日：2009-10-29

申请号：JP2008102329

申请日：2008-04-10

Applicant: Kajima Corp ,  Kfc Ltd ,  Tookinooru:Kk ,  株式会社ケー・エフ・シー ,  株式会社トーキンオール ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  TSUJI TAKASHI ,  OKABE TADASHI ,  YOSHIDA KIICHI

IPC: E21D9/04

Abstract: PROBLEM TO BE SOLVED: To enable exhibiting a reinforcing effect with high uniformity, enable obtaining a competent natural ground reinforcing effect without requiring additional reinforcement at tunnel excavating work, and enable carrying out various excavating methods at a low cost in a natural ground reinforcing method for, for example, tunnel prelining construction and face reinforcing construction. SOLUTION: In the natural ground reinforcing method where drilling h is applied to the inside of the natural ground 1 in front of a working face 1a from the inside of the excavated cross section of a tunnel at a predetermined angle of elevation, and at the same time, a reinforcing pipe 6 formed by sequentially connecting a single or a plurality of pipes having consolidation material discharge holes 6a in the peripheral wall is installed in a drilling hole, and a consolidation material is injected into the reinforcing pipe to form fixed or consolidated areas in the reinforcing pipe and in the natural ground around the reinforcing pipe and to perform reinforcement, a protruding portion 6b protruding to the outside of the reinforcing pipe 6 is installed integrally with the pipe, in the vicinity of the discharge hole 6a formed in the single pipe or a plurality of the pipes forming the reinforcing pipe 6. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了展现高均匀性的增强效果，能够获得能力强的自然地面增强效果，而不需要在隧道挖掘作业中额外的加固，并且能够在自然地面中以低成本执行各种挖掘方法 例如，隧道预制施工和面加固施工的加固方法。 解决方案：在以规定的角度从隧道的挖掘截面的内侧向工作面1a前方的自然地面1的内部施加钻孔h的自然地面加固方法中，以及 同时，在钻孔中安装有通过在周壁连续地连接具有固化材料排出孔6a的单个或多个管道而形成的加强管6，并且将固化材料注入到加强管中以形成固定 或加强管中的加固区域和加强管周围的自然地面中的固结区域，并且进行加强，突出到加强管6的外侧的突出部6b与管一体地设置在形成的排出孔6a的附近 在单管或多个形成加强管6的管中。版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2004052393A

公开(公告)日：2004-02-19

申请号：JP2002212129

申请日：2002-07-22

Applicant: Kajima Corp ,  Kfc Ltd ,  株式会社ケー・エフ・シー ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  DATE KENSUKE ,  HANEUMA TORU ,  HAYASHI HIDEAKI

IPC: E21D20/00 ,  E21D9/04

Abstract: PROBLEM TO BE SOLVED: To provide the superior natural ground reinforcing effect by uniformly injecting a consolidation material into the periphery of a reinforcing pipe in a natural ground reinforcing construction method such as preceding tunneling work and work face part reinforcing work, particularly, a natural ground reinforcing construction method for injecting and solidifying the consolidation material in the reinforcing pipe driven in the natural ground and the surrounding natural ground.
SOLUTION: This natural ground reinforcing construction method forms a consolidation area in the natural ground by permeating the consolidation material in the reinforcing pipe and the surrounding natural ground by injecting the consolidation material into the reinforcing pipe by driving the reinforcing pipe having a delivery hole in a peripheral surface and having the prescribed length in the natural ground, and is characterized by injecting the consolidation material into the reinforcing pipe while transmitting vibration to the consolidation material or the reinforcing pipe or both when injecting the consolidation material into the reinforcing pipe.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2014190135A

公开(公告)日：2014-10-06

申请号：JP2013069267

申请日：2013-03-28

Applicant: Kajima Corp ,  鹿島建設株式会社 ,  Kfc Ltd ,  株式会社ケー・エフ・シー

Inventor： YAMAMOTO TAKUJI ,  KOBUCHI TAKAAKI ,  SATO KAZUNARI ,  ISHIKAWA FUMIKAZU ,  IZUMI TADANOBU ,  NAKANISHI KYOTA

IPC: E21F15/00 ,  E02D3/00 ,  E02D3/12

Abstract: PROBLEM TO BE SOLVED: To provide a method and a device capable of surely forming a bulkhead for blocking a desired position such as an end of a filling target area in an underground cavity, and capable of economically forming the bulkhead by a minimum filler.SOLUTION: In a method for forming a bulkhead: a bag body 11 which is restorable to a size capable of blocking a point to be blocked is arranged in a folded state at the point; an air supply pipe 12 supplies air into the bag body 11 to expand the bag body 11; and an expandable filler is supplied from an expandable filler injection pipe 13 into the bag body 11 while keeping the expansion state of the bag body 11, and the inside of the bag body 11 is filled with the expandable filler so as to replace air. Thereby, the bulkhead in which the bag body 11 is pushed onto the periphery of the point is formed.

Abstract translation: 要解决的问题：提供一种方法和装置，其能够可靠地形成用于阻挡所需位置（例如地下腔中的填充目标区域的端部）的隔板，并且能够以最小的填充物经济地形成隔板。 ：在形成隔板的方法中，在该点处以折叠状态布置能够恢复到能够阻挡被阻挡点的尺寸的袋体11; 空气供给管12向袋体11内供给空气使袋体11膨胀; 并且在保持袋体11的膨胀状态的同时，将可膨胀填料从膨胀填料注入管13供给到袋体11中，并且将袋体11的内部填充有可膨胀填料以便更换空气。 由此，形成将袋体11推压到点的周边的隔板。

公开(公告)号：JP2009197573A

公开(公告)日：2009-09-03

申请号：JP2008102330

申请日：2008-04-10

Applicant: Kajima Corp ,  Kfc Ltd ,  Tookinooru:Kk ,  株式会社ケー・エフ・シー ,  株式会社トーキンオール ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  TSUJI TAKASHI ,  OKABE TADASHI ,  YOSHIDA KIICHI

IPC: E21D9/04

Abstract: PROBLEM TO BE SOLVED: To provide a natural ground reinforcing construction method such as preceding tunneling work and mirror reinforcing work capable of developing high reinforcing effect in uniformity, eliminating the need of additional reinforcement at the time of tunnel excavation work, obtaining a proper natural ground reinforcing effect and executing excavation at a low cost in various excavation methods. SOLUTION: The natural ground reinforcing construction method comprises the steps for enforcement of; drilling a drilled hole h at a specified elevation angle in a natural ground 1 located at the front of work face 1a from the tunnel excavated cross section, connecting single pipe or plural pipes having discharging holes 6a of solidifying material on a surrounding wall sequentially and striking the reinforced pipe 6 into the drilled hole, injecting the solidifying material into the reinforced pipe for anchoring in the reinforcing pipe and in the surrounding natural ground or forming a solidifying region, and is characterized by structuring a steel pipe having recesses 6b at the peripheral surface either with the single pipe or plural pipes for forming the reinforced pipe 6 and by forming the discharging holes on the recesses. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种自然地面加固施工方法，如先前的隧道掘进工作和镜面加固工作，能够发挥高度的均匀性增强作用，消除了在隧道掘进工作时需要额外加固，获得 适当的自然地基加固效果，并在各种挖掘方法中以低成本进行挖掘。 解决方案：天然地面加固施工方法包括执行的步骤; 在隧道挖掘的横截面上，在位于工作面1a前方的自然地面1中钻一个指定的仰角的钻孔h，将单个管道或多个管道上的固定材料连接在周围的壁上， 将加强管6插入到钻孔中，将固化材料注入加强管中，以固定在加强管和周围的自然地面或形成固化区域，其特征在于，在外周面上形成具有凹部6b的钢管 或者用单管或多个用于形成加强管6的管和通过在凹槽上形成排放孔。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006104766A

公开(公告)日：2006-04-20

申请号：JP2004292597

申请日：2004-10-05

Applicant: Kajima Corp ,  Kfc Ltd ,  株式会社ケー・エフ・シー ,  鹿島建設株式会社

Inventor： YAMAMOTO TAKUJI ,  FUKUYA YOSHINORI ,  MIYAJIMA YASUYUKI ,  WAKITA SHINGO ,  TSUJI TAKASHI ,  HANEUMA TORU

IPC: E21B17/07 ,  E21B6/02 ,  E21B7/20 ,  E21D9/04

Abstract: PROBLEM TO BE SOLVED: To carry out boring well while minimizing striking force applied to an insertion pipe and to insert the insertion pipe in a borehole at the same time in a boring device used in the case of boring a hole in the advance natural ground to excavate a tunnel and inserting a reinforcing pipe in the borehole at the same time in a natural ground reinforcing method in a tunnel prelining construction method or the like.
SOLUTION: This boring device applies rotary striking force to a boring bit B provided on the tip side of a boring rod 3, to bore a hole in the ground and pulls insertion pipes 4 sequentially into the borehole with the advance of the boring bit B at the same time. A buffer cylindrical body 6 through which the boring rod 3 is insertable, is provided between the boring bit B and the insertion pipe 4, and the buffer cylindrical body 6 is constituted to be relatively movable by a predetermined distance in an axial direction with respect to each of the boring bit B and the insertion pipe 4.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了在最小化施加到插入管的打击力的同时进行钻孔，同时将插入管同时插入到在提前钻孔的情况下使用的钻孔装置中 挖掘隧道的自然场地，并在隧道预制施工方法等中的自然地面加固方法的同时将加强管插入钻孔中。 解决方案：该钻孔装置对设置在镗杆3的前端侧的钻头B施加旋转击打力，在钻孔中钻孔，并且随着钻孔的进行而将插入管4顺序地拉入钻孔中 B位在同一时间。 在镗头B和插入管4之间设置有能够插入镗杆3的缓冲筒体6，缓冲筒体6相对于轴向相对于轴向相对移动预定距离 每个钻头B和插入管4.版权所有（C）2006，JPO＆NCIPI