Local deep excavation and backfilling structural subgrade and its rapid construction method

    公开(公告)号:US11781280B2

    公开(公告)日:2023-10-10

    申请号:US17715367

    申请日:2022-04-07

    申请人: Tongji University

    摘要: A subgrade with local deep excavation and backfilling structure and a rapid construction method thereof are provided. Supporting cast-in-place piles are laid at positions where an underground pipe gallery is located in a subgrade structure, and soil there between are longitudinally excavated to form a line-shaped foundation pit. A bottom of the line-shaped deep foundation pit is reinforced to support the underground pipe gallery, and lateral peripheral regions and top peripheral regions of the underground pipe gallery are backfilled with block geobag reinforced fillers. Geogrids are placed on the top of the underground pipe gallery, then backfilling compaction and reinforcing are performed, and the geogrids are fixedly assembled with anchor bolts. The construction method is simple and easy. By using compacted block geobag reinforced fillers and cement solidified slurry, an overall quality of the subgrade structure after backfilling can be ensured, and construction period and cost can be greatly reduced.

    Preformed Duct Assembly
    3.
    发明申请

    公开(公告)号:US20210071785A1

    公开(公告)日:2021-03-11

    申请号:US17101213

    申请日:2020-11-23

    摘要: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.

    Manhole lid to base connection
    4.
    发明授权

    公开(公告)号:US10662606B1

    公开(公告)日:2020-05-26

    申请号:US16370794

    申请日:2019-03-29

    IPC分类号: E02D29/12 E02D29/00 E02D29/14

    摘要: A manhole assembly including a base, riser, and cap. The base having an upper surface forming a bench, a bottom surface, and a radially outward surface with penetrations there through; and a radial spigot in the radially outward upper edge of the base. The base having a corrosive-resistant layer covering the channels, bench, and radial spigot. Also disclosed is a riser comprised of a corrosive-resistant polymer pipe having a radially outward surface, an inner surface and a bottom surface in contact with, supported by, and sealed to the radial spigot. The cap having a radial spigot, and access hole; the radial spigot in the radially outward bottom edge of the cap resting upon and sealed to an upper edge of the riser. The radially outward surface of the cap and base are aligned with the radially outward surface of the riser.

    MECHANICAL ELECTRICAL PLUMBING TUNNEL
    5.
    发明申请

    公开(公告)号:US20200149251A1

    公开(公告)日:2020-05-14

    申请号:US16682184

    申请日:2019-11-13

    申请人: Katerra Inc.

    IPC分类号: E03C1/02 E02D29/00

    摘要: A Mechanical Electrical Plumbing (MEP) tunnel is provided. The MEP tunnel includes a rear side, a first side, and a second side. The MEP tunnel is configured to be disposed in a wall frame. The MEP tunnel may also include a plurality of tubing used for mechanical, electrical, and plumbing utilities. The MEP tunnel is connected to the wall frame via two mechanical devices. The MEP tunnel can move up and down between a raised position and a lowered position in the wall frame via two tracks in the MEP tunnel and the two mechanical devices. The MEP tunnel remains in the raised position during shipping and lowered at the completion of installation.

    PIPE TRENCH SYSTEM
    8.
    发明申请
    PIPE TRENCH SYSTEM 审中-公开

    公开(公告)号:US20190145077A1

    公开(公告)日:2019-05-16

    申请号:US16242181

    申请日:2019-01-08

    申请人: ADProducts, LLC

    IPC分类号: E02D29/00 G01M3/28 F16L3/26

    摘要: Systems for providing pipe trenching, and methods of installing the same, are disclosed. Methods of detecting one or more leaks in a pipe trench system and repairing those leaks are also disclosed. The systems may include one or more housings, which may include a trench portion, a lid, a gasket, and one or more leak detectors. The leak detectors may provide a visual indication of a leak in the one or more housings. The leak may be accurately detected, inspected, and repaired without demolition of decking material, excavation of dirt, or damage to the system or surrounding decking material.

    Corner Connection Structure of Steel Structure Comprehensive Pipe Gallery

    公开(公告)号:US20190003144A1

    公开(公告)日:2019-01-03

    申请号:US16125495

    申请日:2018-09-07

    发明人: Fujun ZHAN

    IPC分类号: E02D29/00 F16B5/08 F16B5/00

    摘要: A corner connection structure of a steel structure comprehensive pipe gallery, where corrugated steel plates respectively located on an upper face, a lower face and two side faces are spliced in a circumferential direction to form pipe joints; when the corrugated steel plates are spliced in the circumferential direction, contact end portions of adjacent corrugated steel plates are provided with a pair of groove-shaped flanges capable of wrapping inner and outer walls of respective corrugated steel plate, contact faces of the pair of groove-shaped flanges are fixedly connected to each other, outer folded edges of the groove-shaped flanges and the outer walls of the corrugated steel plates are separated by gaps, inner folded edges of the groove-shaped flanges and the inner walls of the corrugated steel plates are separated by gaps, and inner reinforcing blocks and/or outer reinforcing blocks are respectively arranged in the gaps.