公开(公告)号：US20240229645A9

公开(公告)日：2024-07-11

申请号：US17769208

申请日：2020-10-13

申请人： Putzmeister Engineering GmbH

发明人： Michael Höss ,  Andreas Kandler ,  Timo Lechler

IPC分类号： E21D11/10 ,  F16K11/07

CPC分类号： E21D11/105 ,  F16K11/0716

摘要： The invention relates to a control fitting having a two-way cross-fitting, which has an inlet connecting piece, an outlet connecting piece and a passage connecting piece, and having a control element which is arranged in a guide connecting piece of the control fitting so as to be movable between an open position and a closed position, wherein the outlet connecting piece, in the open position of the control element, communicates with the inlet connecting piece and, in the closed position of the control element, is blocked relative to the inlet connecting piece and the passage connecting piece communicates with the inlet connecting piece both in the open position and in the closed position of the control element, and wherein the guide connecting piece has, on an end remote from the outlet connecting piece, an opening for receiving the control element.

公开(公告)号：US12031435B2

公开(公告)日：2024-07-09

申请号：US17234858

申请日：2021-04-20

申请人： FCI Holdings Deleware, Inc.

发明人： John M. Mulvoy ,  Andrew J. King

IPC分类号： E21D11/10 ,  E21D11/08 ,  E21D11/38

CPC分类号： E21D11/107 ,  E21D11/08 ,  E21D11/385

摘要： A tunnel reinforcement system having a plurality of structural supports positioned at spaced intervals along the length of a tunnel. Each structural support has a plurality of structural segments connected in an end to end relationship. Each structural segment has a plurality of bars connected to a first end and a second end, in which the first end comprises a first butt plate having one or more apertures, and the second end comprises a second butt plate having one or more apertures. The one or more apertures of the first butt plate or the second butt plate of a structural segment are coaxially aligned with the one or more apertures of the first butt plate or the second butt plate of another structural segment in an end to end relationship. The first butt plate or the second butt plate of a structural segment is attachable to the first butt plate or the second butt plate of another structural segment in an end to end relationship. Each structural support defines a geometric supporting framework.

公开(公告)号：US20240052743A1

公开(公告)日：2024-02-15

申请号：US18259131

申请日：2021-12-22

申请人： HINFRA S.R. L.

发明人： Stefano GUANZIROLI

IPC分类号： E21D11/10

CPC分类号： E21D11/102 ,  E21D11/107

摘要： A processing train configured to run along a tunnel to lay a solidifiable fluid material on a wall of the tunnel and allow the solidifiable fluid material to solidify for construction of a lining of the tunnel, an advancement system for advancing the sliding form, a closing edge for closing a space between a front edge of the sliding form and the wall of the tunnel, and spouts for dispensing the solidifiable fluid material around a front segment of the sliding form. A method for constructing a lining of a tunnel with the solidifiable fluid material involves, defining an interspace between the front segment of the sliding form and the wall of the tunnel, introducing the solidifiable fluid material into the interspace and, after hardening time, advancing the sliding form to form a new interspace and successive lining sections.

公开(公告)号：US11821316B1

公开(公告)日：2023-11-21

申请号：US18309336

申请日：2023-04-28

申请人： BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP CO. LIMITED

发明人： Yonggang Jia ,  Yue He ,  Wen Cheng ,  Sicheng Jia ,  Weidong Lu ,  Fan Wu

IPC分类号： E21D11/00 ,  E21D11/10

CPC分类号： E21D11/107

摘要： Provided are a system and construction method of a single-layer lining tunnel structure based on a mine-tunnelling method. With the single-layer lining tunnel structure, a structural rigidity and durability of the tunnel are improved. A construction process of sprayed concrete is improved, specifically, compactness agent and durability enhancing fiber are added to concrete to improve the compactness of concrete, and a special spraying process is adopted to reduce a bound rate of the concrete, and thus to improve the impermeability of sprayed concrete to reach a impermeability level of waterproof concrete. Steel fiber, cellulose fiber, synthetic fiber and other materials are added into the concrete can improve the tensile strength, crack resistance and durability of the concrete.

公开(公告)号：US20230095265A1

公开(公告)日：2023-03-30

申请号：US18062095

申请日：2022-12-06

申请人： CCTEG Coal Mining Research Institute ,  Tiandi Science & Technology Co.,Ltd

发明人： Hongpu KANG ,  Pengfei JIANG ,  Ziyue WANG ,  Yongzheng WU ,  Yaozhong WEI ,  Chang LIU ,  Jichang GUO ,  Chao LUO ,  Xiaoming CAO ,  Zhiliang CHEN ,  Jianwei YANG

IPC分类号： E21D11/10 ,  E21D20/02 ,  E21D21/00

摘要： Disclosed are a method and system for temporary coating supporting and permanent bolt supporting. Tunnel excavation construction operation is composed of a plurality of operation cycle units, and each of the operation cycle units includes: excavating by at least one row pitch to form a new tunnel; spraying a coating material onto a surface of the new tunnel to form a sealing coat on a surface of surrounding rock, wherein the sealing coat has an adhesive property and a sealing property both meeting preset conditions, and has a tensile strength and a toughness needed for supporting; and inserting bolts into the new tunnel to perform permanent supporting.

公开(公告)号：US11572787B2

公开(公告)日：2023-02-07

申请号：US17046048

申请日：2019-04-04

申请人： S&P CLEVER REINFORCEMENT COMPANY AG

发明人： Etienne Pellissier

IPC分类号： E01F5/00 ,  E21D11/10 ,  E21D11/14

摘要： A process is used for the renovation or new construction of corrugated sheet metal tunnels. The corrugated sheets are sandblasted for cleaning and room cleaning. Then anchoring elements are welded to the rough side of the sheets. A layer of shotcrete is applied to this roughened side of the sheets to obtain a smooth coating over the crests and valleys of the sheets. A reinforcement net is placed on this layer and a second layer of shotcrete or mortar is applied to cover the reinforcement net. The top layer can be smoothed. The subsequent corrugated sheet metal tunnel includes corrugated sheets covering the tunnel walls and ceilings with the course direction of their wave crests and valleys parallel to the circumferential direction of the tunnel profile. The corrugated sheets on the inside and/or outside of the tunnel are reinforced with an applied reinforced concrete layer.

公开(公告)号：US20220364469A1

公开(公告)日：2022-11-17

申请号：US17634065

申请日：2020-09-15

申请人： SHANDONG JIANZHU UNIVERSITY ,  ENGINEERING APPRAISAL AND REINFORCEMENT INSTITUTE CO.,LTD, SHANDONG JIANZHU UNIVERSITY

发明人： Jun WANG ,  Xiang GAO ,  Xisen FAN ,  Guohui LIU ,  Jianyong HAN ,  Shengzhi WU ,  Hougang DING

IPC分类号： E21D11/10 ,  E21D11/12 ,  E21D11/40 ,  E21D11/18 ,  E21D23/00 ,  E21D20/00

摘要： A composite support structure, a construction system, and a method, the composite support structure includes a plurality of arc plate rings that are longitudinally arranged along a roadway. A concrete fill steel tube support is arranged on an inner side or an outer side of each arc plate ring. The arc plate ring is formed by splicing a plurality of arc plates. Each concrete fill steel tube support is formed by splicing a plurality of steel pipe sections. The arc plate rings and the concrete fill steel tube supports are capable of jointly supporting walls of the roadway. The support structure has high bearing capability, high construction efficiency of a construction system, and low labor intensity.

公开(公告)号：US11248464B2

公开(公告)日：2022-02-15

申请号：US17292074

申请日：2020-07-20

申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  CHINA COMMUNICATIONS CONSTRUCTION CO., LTD ,  HEBEI FEIPU ENVIRONMENTAL PROTECTION TECHNOLOGY CO. LTD ,  QINGDAO WEST COAST RAIL TRANSIT CO., LTD ,  QINGDAO FIRST MUNICIPAL ENGINEERING CO., LTD

发明人： Lin Xin ,  Shibin Jiang ,  Fu Yu ,  Hailiang Wang ,  Weizhou Li ,  Quanwei Liu ,  Wensheng He ,  Chuan Li ,  Zhenbiao Wang ,  Biao Kong ,  Xiangbao Meng ,  Yong Zhang ,  Wenming Zhang ,  Lide Hou ,  Jiufang Xiong ,  Xuexiang Xu ,  Shuai Wang

IPC分类号： E21D11/00 ,  E21D11/10 ,  E21D15/44 ,  E21D11/18 ,  E21D19/04

摘要： A method of treating tunnel collapse includes mounting a shield plate, a column, a support column to form a combined support and moving the combined support onto an operation platform, lifting up the combined support, and enabling the height of canopy to be greater than the height of an initial supporting arch. Actively contacting a surface of a collapse cavity by a fixed support column and bearing a load, and lifting a movable support column to the top of the collapse cavity and bearing a load. Mounting an initial supporting arch, and welding the initial supporting arch with the support column. Removing a hydraulic prop after the support column contacting the initial supporting arch is cut off and the load of the shield plate is transferred to a supporting shed. Mounting an exhaust pipe and a filling material pumping pipe, and pumping a filling material into a collapse cavity space.

公开(公告)号：US11242751B2

公开(公告)日：2022-02-08

申请号：US16732297

申请日：2019-12-31

申请人： GCP Applied Technologies Inc.

发明人： David Cozzens ,  Xia Cao ,  Steven Horton ,  Rachel C. Weston ,  Abbas Kazmi

IPC分类号： E21D11/38 ,  E21D11/10 ,  C09D133/04

摘要： Disclosed are methods, compositions, and composition packages for spray-coating a membrane for waterproofing a concrete tunnel applications. After primer coating is applied onto a surface in the tunnel, the coating composition is sprayed to form a membrane, and then concrete is cast or sprayed against the membrane so that it can bond to the membrane. Coating compositions comprise two or more acrylate monomers, as well as initiator, accelerator, and optional additive. Preferably, the coating composition is established by using a two-part package, one part having initiator, the other part having accelerator, and each part containing the monomers and optional additives so that the two parts can be shipped to the application site and mixed in a 1:1 ratio during spraying. The waterproofing coating composition provides excellent bonding with concrete.

公开(公告)号：US11181633B2

公开(公告)日：2021-11-23

申请号：US16410625

申请日：2019-05-13

申请人： Tongji University

发明人： Xiongyao Xie ,  Biao Zhou ,  Yunxiang Zhou ,  Hui Qin ,  Yifan Chen

IPC分类号： G01S13/88 ,  E21D11/10 ,  E21D9/00 ,  E21F17/18

摘要： The present invention relates to a loaded-to-frame detection equipment for backfill grouting of a shield tunnel, including an automatic loaded-to-frame transmission apparatus, a ground penetrating radar, and an intelligent backfill grouting processing and analysis software. The equipment is integrated by using software and hardware, and can implement real-time visual detection of a backfill grouting layer in a shield construction process. The loaded-to-frame automatic transmission apparatus mainly includes a track, a synchronous belt, a transmission mechanism, a servo machine, and a drive and reducer; and a new air-coupled radar detection apparatus is carried on the loaded-to-frame automatic transmission apparatus and is installed on a shield frame. With the shield performs tunneling, circular detection on a grouting body of the shield and visual layered display of the grouting body are implemented.