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公开(公告)号：US10526762B2
公开(公告)日：2020-01-07
申请号：US15870522
申请日：2018-01-12
发明人： Ming Lin , Xiaodong Liu , Jibing Gao , Yi Li , Haiqing Yin , Wei Lin , Yonggang LV , Ke Deng , Qiang Wang , Qian Cheng , Lingfeng Liu , Hai Ji , Zhigang Zhang , Huaiping Su , Xiaodong Wang
IPC分类号： E02D29/073 , E02D29/16 , E02D29/067 , E02D29/07
摘要： The present application discloses a final joint of an immersed tunnel, a prefabrication method and an installation method, wherein the final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a tube section I and a tube section II which are connected with each other. The final joint of the immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall final joint is transported to the site for installation; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influence of weather and tidal current conditions on a project may be reduced, and a quality risk may be lowered.
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公开(公告)号：US10544581B2
公开(公告)日：2020-01-28
申请号：US15870550
申请日：2018-01-12
发明人： Ming Lin , Xiaodong Liu , Haiqing Yin , Yi Li , Wei Lin , Shanshui Zhou
IPC分类号： E02D29/073 , E04B1/68 , E02D29/063
摘要： The present application discloses a prestressed tube section structure and a construction method thereof. The prestressed tube section structure includes multiple successively connected segments. A shear-resistant structure and a water stop system are arranged between two segments; multiple prestressing tendons are arranged in the tube section along the circumferential direction of the tube section; and each prestressing tendon is communicated along the longitudinal direction of the tube section, and is partitioned into multiple sections at a position close to a segment joint. By the arrangement of the multiple successively connected segments of the present application, the shear-resistant structure and the water stop system are arranged between the two segments, so that a portion between two segments may bear a shear force and have watertightness; the arrangement of the multiple prestressing tendons in the tube section enables the multiple segments to be connected in series and spliced into a whole; in addition, each prestressing tendon is partitioned into multiple sections at the position close to each segment joint, so that the tube section has higher flexibility on the premise of not losing the overall rigidity, and the loading capacity and deformability of each segment are effectively improved; and a proper pressure is applied between two segments, so that the tube section has higher deformability to adapt to a subsea foundation bed.
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公开(公告)号：US10253904B1
公开(公告)日：2019-04-09
申请号：US15870640
申请日：2018-01-12
发明人： Wei Lin , Ming Lin , Xiaodong Liu , Yi Li
IPC分类号： E02D29/073 , F16L1/16 , F16L1/20 , F16L1/26 , B21D39/04
摘要： The present application discloses an integrated immersed tube section and an installation method thereof, and an installation and closure method of immersed tube sections, wherein the integrated immersed tube section includes a standard immersed tube section; and closed annular telescopic water stop joints are arranged at two ends of the standard immersed tube section. By the adoption of the integrated immersed tube section of the present application, a finally closed immersed tube section is still the standard immersed tube section, and a foundation which is the same as that for common tube sections is used, namely the foundation for the finally closed immersed tube section and the foundation for other immersed tube sections do not have a rigidity difference, so that the risk of the non-uniform settlement of the tube sections during operation of the subsea tunnel is effectively reduced; and in addition, the finally closed immersed tube section and other immersed tube sections are installed with the same installation equipment, and no extra equipment such as a floating crane is needed. Compared with an existing method, the methods have the advantages of eliminating installation of one special final joint, simplifying the construction process and reducing the engineering risk. As offshore special construction equipment and ships are very expensive in rent, use of the integrated immersed tube section substantially reduces the cost and saves various resources.
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