AGGREGATE PIERS REINFORCEMENT AGAINST AXIAL LOADS

    公开(公告)号:US20220307218A1

    公开(公告)日:2022-09-29

    申请号:US17838960

    申请日:2022-06-13

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02D5/52

    摘要: A method for reinforcing an aggregate pier. The method includes inserting a conical-head pipe into the aggregate pier, injecting grout into the aggregate pier by injecting the grout into the inner chamber of the hollow rod, driving the conical-head pipe into a soil under the aggregate pier by driving a secondary pipe into the aggregate pier and pushing the conical-head pipe toward the soil under the aggregate pier by utilizing the secondary pipe, filling the secondary pipe with grout, and inserting a reinforcement bar into the secondary pipe and the hollow rod. This method reinforces an aggregate pier against excess tensional and compressional loads of a concrete foundation.

    MANDREL FOR SOIL COMPACTION
    2.
    发明申请

    公开(公告)号:US20210355648A1

    公开(公告)日:2021-11-18

    申请号:US17390991

    申请日:2021-08-01

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02D3/054 B25D1/02

    摘要: A mandrel for forming a cavity at a target location. The mandrel includes a base part positioned at a top end of the mandrel, a first middle part, a second middle part, a third middle part, a first plurality of diamond-shaped crushing blades, a second plurality of diamond-shaped crushing blades, and a bore head positioned at a bottom end of the mandrel. The first plurality of diamond-shaped crushing blades are attached around the first middle part and the second middle part. The second plurality of diamond-shaped crushing blades are attached around the third middle part and the bore head.

    Systems and methods for constructing retaining wall structure and well point in granular soils under groundwater level

    公开(公告)号:US10669687B1

    公开(公告)日:2020-06-02

    申请号:US16402988

    申请日:2019-05-03

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    摘要: The present invention discloses a system and method for constructing retaining wall structure and well point in granular soils under groundwater level. The system is configured to drain the excavated zone and stabilizes the soil slope wall especially in urban lands with granular soils and high groundwater level during construction process. The system is configured to enable installation of vertical beams and polyethylene grooved drainage pipes wrapped by geotextile for drainage in the boundaries of the desired land by using a hammering casing pipe system. The hammering casing pipe system comprises a casing to receive the vertical beam and the drainage pipe, a mandrel for inserting the casing to the target location without removal of soil in the casing, a hammer element for hammering the mandrel into the target location, and a steel shaft or an impact transmission shaft configured to transfer impact from the hammer element to the mandrel.

    BARBED MICROPILES FOR SOIL REINFORCEMENT

    公开(公告)号:US20210115641A1

    公开(公告)日:2021-04-22

    申请号:US17134996

    申请日:2020-12-28

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02D5/54 E02D7/06 E02D5/52

    摘要: A barbed micropile for soil reinforcement at a target location and a method for soil reinforcement at a target location. The barbed micropile includes a conical-head pipe which comprises a hollow rod, a conical head, and a first plurality of T-shaped elements mounted around an outer surface of the hollow rod. The method may include generating a cavity at the target location, filling the cavity with grout, generating a well at the target location by inserting a barbed micropile into the ground at the target location, filling a space between the barbed micropile and the well's wall with grout, and filling an inner chamber of the hollow rod.

    Mandrel for forming an aggregate pier, and aggregate pier compacting system and method

    公开(公告)号:US09915051B2

    公开(公告)日:2018-03-13

    申请号:US15234835

    申请日:2016-08-11

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    摘要: An aggregate pier compacting system for forming a compacted aggregate pier (AP) at a target location includes a mandrel, a tamper device, and a finishing tamper device. The mandrel includes a casing for housing a drilling shaft (DS). An external vibratory hammer (EVH) repeatedly impacts a hammer element (HE) extending from the DS. The DS transfers the impact to a bore head to form a cavity at the target location. The DS is removed and the casing is filled with aggregate. The tamper device includes a compacting shaft. The EVH impacts a second HE extending from the compacting shaft and transfers the impact to a compaction head to form the compacted AP. The finishing tamper device includes a shaft. The EVH impacts a third HE extending from the shaft and transfers the impact to a finishing head compacting a top layer of the AP to form a finished AP.

    Temporary drainage wells in loose granular soils

    公开(公告)号:US09840835B2

    公开(公告)日:2017-12-12

    申请号:US15061138

    申请日:2016-03-04

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02D3/10 E03F1/00 E02D1/00

    CPC分类号: E03F1/002 E02D1/00 E02D3/10

    摘要: A method for building a drainage well in a loose granular soil is disclosed. The method includes inserting a liner tube into a loose soil using an inserting device. The liner tube includes a housing and an internal shaft placed inside the housing and coupled to inside the housing via a locking mechanism. Subsequent to insertion into the soil, the internal shaft is unlocked from the housing and removed therefrom. Thereafter, a grooved pipe is inserted inside the housing using the inserting device. Subsequent to the grooved pipe insertion into the housing, the housing is removed from the loose granular soil using a mechanical excavator and a space between the loose granular soil and the grooved pipe is filled with a filling material.

    Comprehensive excavation process
    8.
    发明授权

    公开(公告)号:US10233607B2

    公开(公告)日:2019-03-19

    申请号:US15821769

    申请日:2017-11-23

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    摘要: Disclosed is a comprehensive excavation process performed on an excavation site. The process includes installing wellpoints for lowering the groundwater level within the excavation site and stabilizing the boundary soil walls of the excavation site by an improved soil nailing method. The improved soil nailing method employs casing pipes that are part of the wellpoint system as reinforcing elements for the stabilization of the soil walls.

    TEMPORARY DRAINAGE WELLS IN LOOSE GRANULAR SOILS
    9.
    发明申请
    TEMPORARY DRAINAGE WELLS IN LOOSE GRANULAR SOILS 审中-公开
    松散颗粒土壤中的临时排水孔

    公开(公告)号:US20160186398A1

    公开(公告)日:2016-06-30

    申请号:US15061138

    申请日:2016-03-04

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02B11/00 E03F1/00

    CPC分类号: E03F1/002 E02D1/00 E02D3/10

    摘要: A method for building a drainage well in a loose granular soil is disclosed. The method includes inserting a liner tube into a loose soil using an inserting device. The liner tube includes a housing and an internal shaft placed inside the housing and coupled to inside the housing via a locking mechanism. Subsequent to insertion into the soil, the internal shaft is unlocked from the housing and removed therefrom. Thereafter, a grooved pipe is inserted inside the housing using the inserting device. Subsequent to the grooved pipe insertion into the housing, the housing is removed from the loose granular soil using a mechanical excavator and a space between the loose granular soil and the grooved pipe is filled with a filling material.

    摘要翻译: 公开了一种在松散颗粒状土壤中建造排水井的方法。 该方法包括使用插入装置将衬管插入松土。 衬管包括外壳和内轴,该内轴位于壳体的内部并通过锁定机构连接到壳体的内部。 在插入土壤之后,内轴从壳体解锁并从中移除。 此后,使用插入装置将开槽的管插入壳体内。 在槽管插入壳体之后,使用机械挖掘机将壳体从松散的颗粒状土壤中移除,并且松散的颗粒状土壤和带槽的管道之间的空间填充有填充材料。

    Barbed micropiles for soil reinforcement

    公开(公告)号:US11359344B2

    公开(公告)日:2022-06-14

    申请号:US17134996

    申请日:2020-12-28

    申请人: Bahman Niroumand

    发明人: Bahman Niroumand

    IPC分类号: E02D5/54 E02D7/06 E02D5/52

    摘要: A barbed micropile for soil reinforcement at a target location and a method for soil reinforcement at a target location. The barbed micropile includes a conical-head pipe which comprises a hollow rod, a conical head, and a first plurality of T-shaped elements mounted around an outer surface of the hollow rod. The method may include generating a cavity at the target location, filling the cavity with grout, generating a well at the target location by inserting a barbed micropile into the ground at the target location, filling a space between the barbed micropile and the well's wall with grout, and filling an inner chamber of the hollow rod.