System for and method of stabilizing rail track structures using a load transfer apparatus

    公开(公告)号:US11512435B2

    公开(公告)日:2022-11-29

    申请号:US16706915

    申请日:2019-12-09

    发明人: David J. White

    摘要: A system for and method of stabilizing rail track structures using a load transfer apparatus is disclosed. The load transfer apparatus includes a vertical load transfer element and a top load transfer element, wherein the top load transfer element is used to transfer applied locomotive and rail car loads to the vertical load transfer element. In one embodiment, the top load transfer element includes helical flights. In another embodiment, the top load transfer element includes a flared top. In yet another embodiment, the top load transfer element includes a load transfer cap. In a further embodiment, the top load transfer element includes two or more support legs each with a top support attached thereto. The railroad stabilization system can comprise any one type or any combinations of types of the aforementioned load transfer apparatuses.

    EQUAL ENERGY DEFORMATION COMPOSITE FOUNDATION USING MICROORGANISMS TO SOLIDIFY AGGREGATE AND THE CONSTRUCTION METHOD THEREOF

    公开(公告)号:US20220315882A1

    公开(公告)日:2022-10-06

    申请号:US17310779

    申请日:2021-05-21

    申请人: HAINAN UNIVERSITY

    IPC分类号: C12N1/20 C09K17/40 E02D3/08

    摘要: The present invention discloses an equal energy deformation composite foundation using microorganism to solidify aggregate and a construction method thereof, the composite foundation comprises a pile body and a cushion layer, wherein the pile body is provided with several piles, the cushion layer is arranged at the top of the pile body, the pile body is connected into an integral structure through the cushion layer, and the pile body and the cushion layer are filled with aggregate solidified by microorganism. The method comprises the following steps: step 1, leveling the site; Step 2, construction preparation; Step 3, the pile driver in place; Step 4, forming a hole by hammering; Step 5, filling aggregate into the hole; Step 6, repeating the work of step 5; Step 7, forming an equal energy deformation compaction pile using microorganism to solidify aggregate; Step 8, moving to the next pile; Step 9, tamping the ground; Step 10, until the cushion is flush with the surface. Beneficial effects: using local materials, turning waste into wealth, being environmental friendly, saving project cost and conforming to the concept of green development.

    High-performance liquefaction-resistance treatment method for gravel pile of existing building foundation

    公开(公告)号:US11105061B1

    公开(公告)日:2021-08-31

    申请号:US16976767

    申请日:2019-08-20

    摘要: The disclosure discloses a high-performance liquefaction mitigation method forstone columns for protecting the existing buildings during earthquakes. Specifically, a small equipment is used to dig trenches in the soil around the existing building. Then, a spiral driller is used to drill a series of boreholes in the trenches according to the optimized borehole design. Next, two or three layers of optimized gravel material with high permeability are filled into the boreholes to work as the inverted layer. Finally, geotextile is arranged around the trench and the trench is filled with the optimized gravel. Compared with current liquefaction mitigation methods for existing buildings, the disclosure is suitable for liquefaction mitigation in large cities, and has the advantages of low disturbance to the overlaid building, simple construction process, high construction efficiency, low construction cost, long service life and the construction material could be easily obtained.

    DEFORMATION-COMPLIANT RIGID INCLUSIONS WITH EMBEDDED STRUCTURAL REINFORCEMENTS

    公开(公告)号:US20200299917A1

    公开(公告)日:2020-09-24

    申请号:US16825390

    申请日:2020-03-20

    摘要: Soil inclusions (30) comprising an elongated, cured cementitious columnar body (72) are located within the soil (32) and include a tubular perforate structural reinforcement (56a, 56b) embedded within the body (72), with portions of the body exuded through the perforations (57) of the structural reinforcement (56a, 56b). The inclusions (30) are formed by driving a tubular mandrel (44) through vibratory means into the soil (32), with a flexible, tubular, perforate reinforcement (56a, 56b) about the exterior surface of the mandrel (44). When the mandrel (44) is fully driven, it is withdrawn, and simultaneously cementitious material (70) is injected into the mandrel (44). The material (70) exudes through the perforations (57) to complete the inclusion (30), which is deformation compliant. The inclusions may be installed in vertical or non-vertical orientations.

    Cleft-Mallet
    9.
    发明申请
    Cleft-Mallet 审中-公开

    公开(公告)号:US20200256028A1

    公开(公告)日:2020-08-13

    申请号:US16756078

    申请日:2018-10-15

    申请人: Shachar Magali

    发明人: Shachar Magali

    IPC分类号: E02D3/054 E02D3/08

    摘要: A mallet is described that has at least one cleft, in such a structure that the stress wave created during impact has longer travel way than the length of the mallet as measured along the impact line. This mallet induces longer-lasting and weaker stress wave(s) in the anvil as compared to a solid mallet having the same outer dimensions and more or less the same weight. The Cleft-Mallet increases the effectiveness of the strike, while decreasing the stresses in the anvil.

    Open-end extensible shells and related methods for constructing a support pier

    公开(公告)号:US10513831B2

    公开(公告)日:2019-12-24

    申请号:US15430807

    申请日:2017-02-13

    发明人: David J. White

    摘要: Extensible shells and related methods for constructing a support pier are disclosed. An extensible shell can define an interior for holding granular construction material and define a first opening at a first end for receiving the granular construction material into the interior and a second opening at a second end. The extensible shell can be flexible such that the shell expands when granular construction material is compacted in the interior of the shell. A method may include positioning the extensible shell in the ground and filling at least a portion of the interior of the shell with the granular construction material. The granular construction material may be compacted in the interior of the extensible shell to form a support pier.