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1. 发明专利

JP2013053483A Low-height excavating machine capable of changing feed stroke 有权
标题翻译：低高度挖掘机可以更换进料斗
公开(公告)号：JP2013053483A
公开(公告)日：2013-03-21
申请号：JP2011193392
申请日：2011-09-05
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社 , Toa Tone Boring:Kk , 株式会社東亜利根ボーリング
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , TAKEYA TSUTOMU , IKEMOTO HIROFUMI , SAITO MASAHARU , TAKEDA SHIGETSUGU , KURISU MOTOAKI , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , OGISU KAZUYUKI , KITAHARA TOSHIHIRO , IUCHI KATSUNORI , NAKAZAWA KOSUKE
IPC分类号： E21B15/00
摘要： PROBLEM TO BE SOLVED: To provide a lifting device which increases a machine operation rate by enhancing excavation efficiency on a job site with allowance for height by enabling additional extension of a mast.SOLUTION: A low-height excavating machine includes: a skid base; a frame which is supported by the skid base and which relatively slides in its longitudinal direction; a mast 3 which is provided with a roller chain 11 erected in the frame; a lifting device which is fitted with a swivel head 5 lifted/lowered by a pin sprocket meshed with the roller chain 11; and a turn table 30 which rotates a kelly rod. In the low-height excavating machine, an extension mast provided with the roller chain 11 is detachably attached to the mast, the total height of the mast is increased, and a feed stroke can be set long to enhance excavation efficiency.
摘要翻译：要解决的问题：提供一种提升装置，其通过增加桅杆的额外延伸，通过增加作业位置上的挖掘效率来提高机器操作率。
解决方案：一种低高度挖掘机包括：防滑基座; 框架，其由滑动基座支撑并且在其纵向方向上相对滑动; 桅杆3，其设置有竖立在框架中的滚子链11; 提升装置，其安装有通过与滚子链11啮合的销链轮提升/降低的旋转头5; 以及使凯利杆旋转的转台30。在低高度挖掘机中，设置有滚子链11的延伸杆可拆卸地安装在桅杆上，桅杆的总高度增加，并且可以设定较长的进给冲程以提高挖掘效率。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013053482A Turn table-driven type excavator 有权
标题翻译：转台式挖掘机
公开(公告)号：JP2013053482A
公开(公告)日：2013-03-21
申请号：JP2011193391
申请日：2011-09-05
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社 , Toa Tone Boring:Kk , 株式会社東亜利根ボーリング
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , TAKEYA TSUTOMU , IKEMOTO HIROFUMI , SAITO MASAHARU , TAKEDA SHIGETSUGU , KURISU MOTOAKI , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , OGISU KAZUYUKI , KITAHARA TOSHIHIRO , IUCHI KATSUNORI , NAKAZAWA KOSUKE
IPC分类号： E21B7/00
摘要： PROBLEM TO BE SOLVED: To relax an impulsive contract surface pressure load when starting a turn table-type rotary drive transmission device.SOLUTION: The center of rotation of a turn table 1 and the center of a kelly rod 4 agree with each other, a gap between a torque transmission surface 11 of the turn table 1 and a protrusion 41 for transmission of a rotary drive force, which is brought into contact with the torque transmission surface 11 of the turn table 1 when the turn table is rotated in the direction of an arrow, is substantially eliminated, and a gap (α) is formed between the side of an opposite surface and the torque transmission surface of the turn table 1. Since the gap is substantially eliminated, an impulsive contract surface pressure load at the rotational starting of the turn table 1 is relaxed, the protrusion 41 for the transmission of the rotary drive force of the kelly rod 4 is hardly damaged, and a use period of the kelly rod can be prolonged to increase economical efficiency.
摘要翻译：要解决的问题：当启动转台式旋转驱动传动装置时，放松冲击式压缩载荷。解决方案：转台1的旋转中心和凯利杆4的中心彼此一致，转台1的转矩传递表面11之间的间隙和用于传送旋转驱动器的突起41 基本上消除了当转台沿箭头方向旋转时与转台1的转矩传递表面11接触的力，并且在相对表面的侧面之间形成间隙（α）以及转台1的转矩传递面。由于间隙基本上消除，转台1的旋转启动时的冲击收缩面压力负担缓慢，所以用于传递凯利旋转驱动力的突起41 杆4几乎不被损坏，并且可以延长使用期限，以提高经济效率。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013053431A Support stand of ultra low overhead clearance drilling device and recovery method of bit 有权
标题翻译：超低角度间隙钻孔装置支撑台及回收方法
公开(公告)号：JP2013053431A
公开(公告)日：2013-03-21
申请号：JP2011191310
申请日：2011-09-02
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社 , Toa Tone Boring:Kk , 株式会社東亜利根ボーリング
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , IKEMOTO HIROFUMI , TAKEYA TSUTOMU , SAITO MASAHARU , KURISU MOTOAKI , TAKEDA SHIGETSUGU , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , OGISU KAZUYUKI , KITAHARA TOSHIHIRO , IUCHI KATSUNORI , NAKAZAWA KOSUKE
IPC分类号： E21B7/00
摘要： PROBLEM TO BE SOLVED: To allow a small-sized drilling device to drill a hole of a diameter larger than an outside dimension of the base, and to easily recover a bit after drilling is ended on a construction site with an extremely limited overhead clearance.SOLUTION: A support stand of an ultra low overhead clearance drilling device includes: a pair of beam members 2, 2 installed roughly in parallel at an interval from each other so as to cross a drilling hole 52; a pair of connection members 3, 3 provided roughly in parallel at an interval from each other so as to connect the beam members 2, 2; and a pair of temporary receiving bars 4, 4 whose one end is freely turnably attached to one connection member 3 and other end is supported by the other connection member 3. The temporary receiving bars 4, 4 are freely movable between an approach position at which they are roughly in parallel to each other and a separated position at which they are spread open roughly in an inverted chevron shape, and are engaged with an outer periphery of a drilling rod 59 to support the bit at the approach position.
摘要翻译：要解决的问题：为了允许小型钻孔装置钻出比基座的外部尺寸大的直径的孔，并且在非常有限的施工现场结束钻井后容易地回收钻头架空清关。解决方案：超低架空间隙钻孔装置的支撑架包括：一对梁构件2,2，其彼此间隔开大致平行，以便穿过钻孔52; 一对连接构件3,3，大致平行地彼此间隔设置，以便连接梁构件2,2; 以及一对临时接收杆4,4，其一端可自由地可转动地安装在一个连接件3上，另一端由另一个连接件3支撑。临时接收杆4,4可以在接近位置它们大体上彼此平行，并且分开的位置大致以倒V形的方式展开，并且与钻杆59的外周接合以将钻头支撑在接近位置。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2011226255A Super-low overhead clearance excavator, kelly rod employed therewith, and excavating reaction securing method and its mobile device 有权
标题翻译：超低周边清扫机，采用的凯利钻机，以及防爆反应安全方法及其移动装置
公开(公告)号：JP2011226255A
公开(公告)日：2011-11-10
申请号：JP2011073616
申请日：2011-03-29
申请人： East Japan Railway Co , Tekken Constr Co Ltd , Toa-Tone Boring Co Ltd , 東日本旅客鉄道株式会社 , 株式会社東亜利根ボーリング , 鉄建建設株式会社
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , TAKEYA TSUTOMU , IKEMOTO HIROFUMI , SAITO MASAHARU , KURISU MOTOAKI , TAKEDA SHIGETSUGU , IZUMI HIROKAZU , OGISU KAZUYUKI , KITAHARA TOSHIHIRO , IUCHI KATSUNORI , NAKAZAWA KOSUKE
IPC分类号： E21B7/00 , E21B15/00
摘要： PROBLEM TO BE SOLVED: To provide a super-low overhead clearance excavator and a method of securing a excavating reaction thereof, by which in the construction site having a extremely limited overhead clearance under a station platform etc., pile hole construction can be performed without influencing the space on the platform.SOLUTION: The excavator comprises: a skid base 1; a mast frame 2 which is supported by the skid base 1 and slides relatively in front and rear directions; a mast 3 erected in the mast frame 2; a lifting beam 4 which lifts and lowers along a guide formed in the mast; a swivel head which is supported by the lifting beam and suspends the kelly rod for excavation; and a turntable 30 which is supported by the skid base 1 and rotates the kelly rod.
摘要翻译：要解决的问题：为了提供一种超低架空间隙挖掘机和一种确保挖掘反应的方法，在站台平台等的顶部间隙非常有限的施工现场，桩孔结构可以在不影响平台上的空间的情况下执行。解决方案：挖掘机包括：防滑基座1; 桅杆架2，其由滑动基座1支撑并且在前后方向上相对滑动; 竖立在桅杆架2中的桅杆3; 提升梁4，其沿着形成在桅杆中的导轨升降; 旋转头，由提升梁支撑并悬挂用于挖掘的凯利杆; 以及由滑动基座1支撑并旋转凯利杆的转台30。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2007032101A Steel pipe pile and foot protection method therefor 有权
标题翻译：钢管及其保护方法
公开(公告)号：JP2007032101A
公开(公告)日：2007-02-08
申请号：JP2005217163
申请日：2005-07-27
申请人： East Japan Railway Co , Tekken Constr Co Ltd , 東日本旅客鉄道株式会社 , 鉄建建設株式会社
发明人： TAKASAKI HIDEAKI , SUZUKI HIROYUKI , TANIGUCHI YOSHINORI , SAITO TAKASHI , SAITO MASAHARU , CHIJIIWA MITSUO , MORIMOTO TAKEO , MASUDA NOBUHIRO , TAKEDA SHIGETSUGU
IPC分类号： E02D5/28 , E02D5/72 , E02D7/00
摘要： PROBLEM TO BE SOLVED: To provide a steel pipe pile which can obtain a predetermined bearing capacity by surely agitating/mixing excavated sediment and a solidification material, taken into the steel pipe pile.
SOLUTION: A cutting bit 2 is fixed to the leading end of the steel pipe pile 1. An internally arranged feed pipe 7 for an excavation fluid and the solidification material is connected to the cutting bit in such a manner as to communicate with an injection port 5 which is provided in the cutting bit 2. The steel pipe pile 1 is rotatively pressed into the ground. This steel pipe pile 1 is equipped with an injection pipe 9 for the solidification material, which is arranged inside the steel pipe pile in such a manner as to be elongated downward along the inner periphery of the steel pipe pile, and the leading end of which is opened on the inner periphery of the lower end of the steel pipe pile 1. A spiral edge 11 is provided on the inner periphery of the lower end of the steel pipe pile 1, and a leading end of the injection pipe 9 is opened in such a manner as to be circumferentially directed on the spiral edge.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过可靠地搅拌/混合挖掘的沉淀物和凝固材料获得预定的承载能力的钢管桩，该钢管桩被带入钢管桩中。解决方案：切割钻头2固定在钢管桩1的前端。用于挖掘流体和凝固材料的内部布置的进料管7以与设置在切削刀头2中的喷射口5.钢管桩1被旋转地压入地面。该钢管桩1配备有用于固化材料的注入管9，该注入管9布置在钢管桩的内侧，沿着钢管桩的内周向下延伸，其前端在钢管桩1的下端的内周开口。在钢管桩1的下端的内周设有螺旋形边缘11，喷射管9的前端开口这种方式被周向地指向螺旋形边缘。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007032100A Steel pipe pile 有权
标题翻译：钢管管
公开(公告)号：JP2007032100A
公开(公告)日：2007-02-08
申请号：JP2005217162
申请日：2005-07-27
申请人： East Japan Railway Co , Tekken Constr Co Ltd , 東日本旅客鉄道株式会社 , 鉄建建設株式会社
发明人： TAKASAKI HIDEAKI , SUZUKI HIROYUKI , TANIGUCHI YOSHINORI , SAITO TAKASHI , SAITO MASAHARU , CHIJIIWA MITSUO , MORIMOTO TAKEO , MASUDA NOBUHIRO , TAKEDA SHIGETSUGU
IPC分类号： E02D5/28 , E02D5/72
摘要： PROBLEM TO BE SOLVED: To provide a steel pipe pile which can obtain a predetermined bearing capacity by surely agitating/mixing excavated sediment and a solidification material, taken into the steel pipe pile.
SOLUTION: A cutting bit 2 is fixed to the leading end of the steel pipe pile 1. A feed pipe 7 for an excavation fluid and the solidification material, which is connected to the cutting bit 2 and communicating with an injection port provided in the bit, is provided inside the steel pipe pile 1. The steel pipe pile 1 is rotatively pressed into the ground. The feed pipe 7 is connected to the cutting bit 2 in such a manner as to be relatively rotatable via a swivel 8, and fixed to the ground in a relatively unrotatable manner; and an agitating member 9 for agitating the excavated sediment getting into the steel pipe pile is provided on the lower outer periphery of the feed pipe 7.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过可靠地搅拌/混合挖掘的沉淀物和凝固材料获得预定的承载能力的钢管桩，该钢管桩被带入钢管桩中。解决方案：切割头2固定到钢管桩1的前端。一个挖掘流体供给管7和固化材料连接到切割钻头2并与设置的喷射口连通位于钢管桩1的内部。钢管桩1被旋转地压入地面。进料管7以可相对旋转的方式连接到切割钻头2，并以相对不可旋转的方式固定在地面上; 并且在进料管7的下外周设置有用于搅拌被挖掘的沉淀物进入钢管桩的搅拌构件9.（C）2007，JPO＆INPIT

7. 发明专利

JP2013060707A Borehole water level stabilization system for cast-in-place pile 有权
标题翻译：井下水位稳定系统
公开(公告)号：JP2013060707A
公开(公告)日：2013-04-04
申请号：JP2011198035
申请日：2011-09-12
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , IKEMOTO HIROFUMI , WADA AKIHIRO , IWASE TAKASHI , SAITO MASAHARU , TAKEDA SHIGETSUGU , YAMAMURA YASUO , KURISU MOTOAKI , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , FURUSAWA SHINJI
IPC分类号： E02D5/34
摘要： PROBLEM TO BE SOLVED: To provide a borehole water level stabilization system for a cast-in-place pile, capable of stabilizing a water level of a stabilizer inside a pile hole even on a site where a groundwater level is high or a site where a position to drill the pile hole and an installation position of a tank are separated.SOLUTION: In a borehole water level stabilization system 1 for the cast-in-place pile including supply means 4 for supplying the stabilizer to a drilling hole H, discharge means 5 for discharging slurry from the drilling hole H together with drilled sediment, water level detection means 6 for detecting the water level of the stabilizer supplied into the pile hole H, and control means 7 for controlling them, the supply means 4 includes a stabilizer tank 40 for storing the stabilizer, a feed pump 42 for sending out the stabilizer from the stabilizer tank into the pile hole, and a supply route 44 from the stabilizer tank 40 to the inside of the pile hole H. A check valve 44b is provided near a proximal end to be a feed pump side of the supply route 44, a motor valve 44a is provided near a distal end to be the side of the pile hole H, and the stabilizer is made storable inside the supply route 44 between both valves.
摘要翻译：要解决的问题：为了提供现浇桩的钻孔水位稳定系统，即使在地下水位高的地方也能稳定桩孔内的稳定器的水位，或者钻孔位置和罐的安装位置分开。解决方案：在用于现浇桩的井眼水位稳定系统1中，包括用于将稳定器供应到钻孔H的供给装置4，用于从钻孔H排出浆料的排出装置5以及钻井沉积物用于检测供给到桩孔H的稳定器的水位的水位检测单元6以及控制装置7的控制单元7，供给单元4包括用于收纳稳定器的稳定器箱40，稳定器从稳定罐进入桩孔，以及从稳定罐40到桩孔H的内部的供给路径44.止回阀44b设置在近端附近作为供给路径的供给泵侧如图44所示，在作为桩孔H侧的前端附近设置有马达阀44a，并且稳定器能够在两个阀之间的供给路径44的内部存储。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2013185403A Erection device and erection method of reinforcement cage 有权
标题翻译：加固笼的防护装置和防护方法
公开(公告)号：JP2013185403A
公开(公告)日：2013-09-19
申请号：JP2012053162
申请日：2012-03-09
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社
发明人： ISHIBASHI TADAYOSHI , WADA AKIHIRO , IKEMOTO HIROFUMI , TANIGUCHI YOSHINORI , TAKIZAWA SATOSHI , OKADA TAKAYUKI , TAKEYA TSUTOMU , OMURA HIROAKI , TAKASHIMA HIROYUKI , TAKEDA SHIGETSUGU , KURISU MOTOAKI , YAMAMURA YASUO , IWAI TAKANORI
IPC分类号： E02D5/20
摘要： PROBLEM TO BE SOLVED: To provide an erection device and an erection method of a reinforcement cage, capable of effectively utilizing a limited space and efficiently performing work on a construction site with a limited height.SOLUTION: A lifting device 1 includes a pair of bases 2 and a pair each of posts 6 provided at an interval on the bases 2. The post 6 is provided with a rectangular movable frame 10 to be elevated and lowered in a vertical direction, and the movable frame 10 has a plurality of holders 13 projected to the inner side of the movable frame 10 and provided with a pin 15 that can be engaged with a reinforcement cage unit 12. A lower holding device includes an annular base disposed at a peripheral edge of a pile hole, and the base has a plurality of holders 33 projected to the inner side thereof and provided with a pin 34 that can be engaged with the reinforcement cage unit 12.
摘要翻译：要解决的问题：提供一种能够有效利用有限空间并有效地在具有有限高度的施工现场进行工作的加强笼的安装装置和架设方法。解决方案：提升装置1包括一对底座两个支柱6以一定间隔设置在基座2上。支柱6设有矩形可移动框架10，以在垂直方向上升高和降低，并且可移动框架10具有突出的多个保持件13 到可移动框架10的内侧，并且设置有可与加强保持架单元12接合的销15.下保持装置包括设置在桩孔周边的环形基座，并且基座具有多个突出在其内侧的保持件33设置有可与加强架单元12接合的销34。

9. 发明专利

JP2011106190A Liner plate connection structure and liner plate connection structural body 有权
标题翻译：衬板连接结构和衬板连接结构体
公开(公告)号：JP2011106190A
公开(公告)日：2011-06-02
申请号：JP2009263531
申请日：2009-11-19
申请人： East Japan Railway Co , Jfe Metal Products & Engineering Inc , Jfe建材株式会社 , Tekken Constr Co Ltd , 東日本旅客鉄道株式会社 , 鉄建建設株式会社
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , TAKEYA TSUTOMU , IKEMOTO HIROFUMI , HOSHIKAWA TSUTOMU , TAKAGI KEIICHIRO , TAKASAKI HIDEAKI , SUZUKI HIROYUKI , OTSUKA TAKAHITO , SAITO MASAHARU , MORIMOTO TAKEO , MIDOMARU MITSUYUKI , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , HAYASHI IKUO , TAKEDA SHIGETSUGU , KURISU MOTOAKI , TSURUMI AKITOSHI , MORIMOTO ATSUO , KIMURA SHIGEAKI
IPC分类号： E21D5/10 , E21B7/20
摘要： PROBLEM TO BE SOLVED: To provide a liner plate connection structure enabling a general liner plate, the use of which is restricted depending on the size of a foundation pile, construction work method, working environment, or the like, to be used.
SOLUTION: An inner tightening liner plate is connected through a connection device. The connection device includes a pair of flange connection parts and a support part joining the pair of flange connection parts. Flange connection holes for tightening bolts are formed in the flange connection parts. The connection device is formed by connecting and fixing a pair of connection pieces. The connection piece includes a flange connection part and a support piece vertically extending from the edge or the front surface of the flange connection part. The flange connection part is configured so that the outer peripheral edge and the inner peripheral edge are positioned parallel to each other. The support piece comprises support piece connection holes for tightening bolts. In one of the support pieces, nuts are welded to the surface of the flange connection part on the inner peripheral edge side, and the support piece connection holes communicate with the nut holes.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够使用通用衬板的衬板连接结构，其使用根据使用的基础桩的尺寸，施工工作方法，工作环境等来限制。
解决方案：内部紧固衬板通过连接装置连接。连接装置包括一对法兰连接部和连接该对法兰连接部的支撑部。法兰连接部分形成用于紧固螺栓的法兰连接孔。连接装置通过连接和固定一对连接件而形成。连接件包括凸缘连接部和从凸缘连接部的边缘或前表面垂直延伸的支撑件。凸缘连接部被构造为使得外周边缘和内周边缘彼此平行地定位。支撑件包括用于紧固螺栓的支撑件连接孔。在一个支撑件中，螺母被焊接到内周边缘侧的法兰连接部的表面，并且支撑件连接孔与螺母孔连通。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2012255289A Seal device of drilling hole wall protective pipe 有权
标题翻译：钻孔保护管密封装置
公开(公告)号：JP2012255289A
公开(公告)日：2012-12-27
申请号：JP2011128599
申请日：2011-06-08
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tekken Constr Co Ltd , 鉄建建設株式会社
发明人： ISHIBASHI TADAYOSHI , TANIGUCHI YOSHINORI , IKEMOTO HIROFUMI , WADA AKIHIRO , NAKAGAWA YURI , TAKAHASHI FUSAKO , TAKASAKI HIDEAKI , OTSUKA TAKAHITO , SAITO MASAHARU , TAKEDA SHIGETSUGU , KURISU MOTOAKI , YAMADA AKIFUMI , YAMAUCHI SHINYA , TAKASHIMA HIROYUKI , MACHINAGA TOSHIHIRO , NISHIMURA MASAYUKI
IPC分类号： E21B3/02 , E21D1/08 , E21D5/10
摘要： PROBLEM TO BE SOLVED: To surely prevent a filler from leaking to the inside of a drilling hole in drilling execution of filling the filler between a hole wall and a protective pipe.SOLUTION: A seal device includes a cylindrical seal body 24 attached to a lower end of a hole wall protective pipe 20 and extended upwards from the lower end to a prescribed height range along a drilling hole wall, and a sheet 25 arranged on an inner side of the seal body 24 and attached to the lower end of the hole wall protective pipe 20. For the seal body 24, a bottom part between the lower end of the hole wall protective pipe 20 and the hole wall has rigidity against a load of the filler, at least a cylindrical part along the hole wall is divided into multiple parts in a circumferential direction, and respective division parts 27 have elasticity so that they can be closely attached to the hole wall independently.
摘要翻译：要解决的问题：为了确保防止填料在孔壁和保护管之间的钻孔执行中泄漏到钻孔的内部。解决方案：密封装置包括：圆柱形密封体24，其附接到孔壁保护管20的下端，并沿着钻孔壁从下端向上延伸到规定的高度范围;以及片25，布置在密封体24的内侧并且附接到孔壁保护管20的下端。对于密封体24，孔壁保护管20的下端和孔壁之间的底部具有抵抗填料的填充物，至少沿着孔壁的圆筒部分在圆周方向上分成多个部分，并且各个分隔部分27具有弹性，使得它们可以独立地紧密地附接到孔壁。版权所有（C）2013，JPO＆INPIT

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