WO2017185905A1 - Structure de fondation de branchement distribuée de colonne nervurée pour ligne de lévitation magnétique faible à vitesse moyenne à lente - Google Patents

Structure de fondation de branchement distribuée de colonne nervurée pour ligne de lévitation magnétique faible à vitesse moyenne à lente Download PDF

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Publication number
WO2017185905A1
WO2017185905A1 PCT/CN2017/077334 CN2017077334W WO2017185905A1 WO 2017185905 A1 WO2017185905 A1 WO 2017185905A1 CN 2017077334 W CN2017077334 W CN 2017077334W WO 2017185905 A1 WO2017185905 A1 WO 2017185905A1
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WO
WIPO (PCT)
Prior art keywords
reinforced concrete
ballast
foundation
rib
low
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Application number
PCT/CN2017/077334
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English (en)
Chinese (zh)
Inventor
郭建湖
姜鹰
李小和
赵新益
姚洪锡
李巍
王勇刚
杨辉建
Original Assignee
中铁第四勘察设计院集团有限公司
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Publication of WO2017185905A1 publication Critical patent/WO2017185905A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E01B2/006—Deep foundation of tracks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/10—Deep foundations
    • E02D27/12—Pile foundations
    • E02D27/14—Pile framings, i.e. piles assembled to form the substructure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/08—Deep or vertical foundation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete

Definitions

  • the invention belongs to the field of low-level lines of medium and low-speed maglev traffic engineering, and more particularly to a medium-low speed magnetic floating low-position line rib column distributed switchboard foundation structure.
  • Medium- and low-speed magnetic levitation rail transit is a new type of transportation. At present, there are few research results at home and abroad, and the number of lines opened and operated in the world is even rare. At present, there is only the commercial operation line of the medium and low-speed magnetic levitation railway opened in March 2005 in Japan - the eastern hilly line and the medium and low speed magnetic levitation railway commercial operation line opened in June 2014 in South Korea. China's medium and low-speed magnetic levitation traffic is currently only the National Defense Science and Technology University test line, the Qingcheng Mountain test line, and the Tangshan experimental line. However, it has not been put into operation, and all of them are mainly elevated structures. It is rare to see the research and application of the basic section of the vehicle section.
  • the train lanes in the depot are realized by the turning machinery.
  • the impact on the ballast is large.
  • the ballast is usually arranged at a position where the foundation stiffness is relatively uniform to minimize the impact on the ballast. , thereby reducing maintenance and repair.
  • the medium-low speed magnetic levitation adopts a special way of holding the track.
  • the maglev train change lane is rotated by a certain angle through the ballast beam and then connected with the low-line track-bearing beam connected to it.
  • the rotation of the ballast beam is more demanding for the complex loads such as pressing, pulling, bending and twisting.
  • the rotation of the ballast beam is easy to cause uneven deformation of the foundation of the ballast beam, which seriously affects the maglev train. Comfort and normal lane change.
  • the present invention provides a medium-low speed magnetic floating low-line rib-column distributed ballast foundation structure, which is required to satisfy the fact that the ballast beam is not broken due to insufficient foundation foundation during the rotation process.
  • Large deformation to meet the strength and long-term stability requirements of the low-line ballast beam foundation of the maglev traffic engineering depot, and also to meet the ballast beam foundation low-line The foundation treatment method can ensure the rigidity and settlement meet the requirements, the economy is good and the construction quality is controllable.
  • a medium-low-speed magnetic floating low-tracking ballast foundation structure which is characterized in that it comprises a reinforced concrete raft plate, a reinforced concrete ballast girders, a reinforced concrete drill, and a reinforced concrete drill.
  • the raft concrete raft is horizontally disposed in the ballast zone, and the reinforced concrete bored pile is disposed on the bottom end surface thereof, and a plurality of the reinforced concrete ballast ribbed rib foundations are fixedly disposed on the top end surface thereof,
  • the reinforced concrete ballast beam ribbed foundation, reinforced concrete bored pile and reinforced concrete slab together form a rigid bearing structure to bear the pressure, tension, bending moment and torque transmitted by the ballast beam;
  • the reinforced concrete bored pile extends through the weak formation and extends into the bearing layer to reduce deformation of the ballast beam during rotation;
  • the number of the steel plates is plural, and each of the steel plates is fixedly mounted on a top end of a reinforced concrete ballast rib rib base by a plurality of the embedded bolts for connecting the sill beam.
  • the transition section structure comprises two ballast zone ground treated reinforced concrete slabs, and an intermediate reinforced concrete valve slab connecting the two ballast zone ground treated reinforced concrete slabs, the intermediate reinforced concrete valve slab
  • the thickness of the reinforced concrete slab is less than the thickness of each of the ballast zones, and the bottom end surface of the intermediate reinforced concrete valve plate extends downward with an intermediate reinforced concrete bored pile, and the top surface is provided with a reinforced concrete ballast beam
  • a strip-shaped rib foundation, the top end surface of the reinforced concrete ballast beam rib base is connected to the steel plate by a pre-embedded bolt.
  • the length of the intermediate reinforced concrete bored pile on the intermediate reinforced concrete valve plate is not greater than the length of the reinforced concrete bored pile on the reinforced concrete raft on the foundation treated in the ballast zone.
  • the invention is reinforced with reinforced concrete bored piles and reinforced concrete slabs, and the lower reinforced concrete slabs can be carried out according to the difference of pressure, tension, bending and twisting of the upper girders and strips.
  • the partition thickness design simultaneously sets the structural joint break at the appropriate position and adjusts the pile length of the reinforced concrete bored pile in the lower part, which ensures the rigidity and settlement meet the requirements, reduces the settlement difference and temperature stress, and It is more economical than reinforced concrete slabs of the same thickness and reinforced concrete bored piles of the same length.
  • Figure 1 is a schematic longitudinal sectional view of the present invention
  • Figure 2 is a schematic view of the structure of the present invention.
  • Fig. 3 is a structural view showing the installation of the pre-embedded bolt on the base of the ballast beam rib according to the present invention.
  • a medium-low speed magnetic floating low-line rib-column distributed ballast foundation structure is characterized in that it comprises a reinforced concrete raft plate in a ballast zone, a reinforced concrete ballast girders ribbed foundation 1, and a steel bar. Concrete bored pile 3, steel plate and pre-embedded bolt 4, wherein
  • the raft concrete raft 2 of the ballast zone is horizontally disposed, and the bottom end surface is arranged with multiple roots
  • the reinforced concrete bored pile 3 has a plurality of the reinforced concrete ballast beam strip rib column foundation 1 fixed on the top end surface thereof, the reinforced concrete ballast beam strip rib column foundation 1, and the reinforced concrete bored pile 3 and the reinforced concrete slab 2 together form a rigid bearing structure to bear the pressure, tension, bending moment and torque transmitted by the ballast beam;
  • the reinforced concrete bored pile 3 passes through the weak formation 5 and extends into the bearing layer 6 to reduce the deformation of the ballast beam during the rotation process;
  • the number of the steel plates is plural, and each of the steel plates is fixedly mounted on a top end of a reinforced concrete ballast rib rib base 1 by a plurality of the embedded bolts 4 for connecting the sill beams.
  • the transition section structure comprises two ballast zone ground-treated reinforced concrete slabs 2, and an intermediate reinforced concrete valve slab connecting the two ballast zone ground-treated reinforced concrete slabs 2, the intermediate reinforced concrete valve
  • the thickness of the plate is smaller than the thickness of the reinforced concrete slab 2 treated by each of the ballast zones, and the bottom end face of the intermediate reinforced concrete valve plate extends downward with an intermediate reinforced concrete bored pile 3, and the top end surface is provided with steel bars
  • the concrete ballast beam ribbed foundation 1, the top end face of the reinforced concrete ballast beam ribbed foundation 1 is connected to the steel plate by the embedded bolt 4.
  • the length of the intermediate reinforced concrete bored pile 3 on the intermediate reinforced concrete valve plate is not greater than the length of the reinforced concrete bored pile 3 on the ground treated reinforced concrete slab 2 of the ballast zone.
  • the reinforced concrete ballast beam ribbed column foundation 1 is made of reinforced concrete bored pile 3 and reinforced concrete slab 2, reinforced concrete bored pile 3, reinforced concrete slab 2
  • the reinforced concrete ballast beam ribbed column foundation 1 is rigidly connected to bear the complex loads such as pressure, tension, bending and torsion transmitted by the ballast beam.
  • the size and reinforcement of the strip rib foundation 1 are rotated according to the ballast beam. The requirements of gliding and load size are determined.
  • the reinforced concrete bored pile 3 extends into the reliable bearing layer 6 through the weak stratum 5, ensuring that the ballast beam does not undergo excessive deformation due to insufficient foundation foundation stiffness during the rotation process. Turnout beam to foundation Strength and stability requirements.
  • the foundation of the low-line line of the ballast beam is reinforced with reinforced concrete bored pile 3 and reinforced concrete slab 2, according to the difference of pressure, tension, bending and twist of the upper truss beam rib column foundation 1
  • the lower reinforced concrete slab 2 is designed for the partition thickness and the structural joint is broken at the appropriate position, and the pile length of the reinforced concrete bored pile 3 is adjusted to ensure the rigidity and settlement meet the requirements. Small settlement differences and temperature stresses are more economical than reinforced concrete slabs of the same thickness and reinforced concrete bored piles of the same length.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Foundations (AREA)

Abstract

L'invention concerne une structure de fondation de branchement distribuée de colonne nervurée pour une ligne de lévitation magnétique faible à vitesse moyenne à lente, comprenant des dalles de radier en béton armé de traitement de fondation de zone de branchement (2), des fondations de colonne nervurée en béton armé en forme de bande de poutre de branchement (1), des pieux en béton armé coulés dans un trou de forage (3), des plaques en acier et des boulons encastrés (4). Les dalles de radier en béton armé de traitement de fondation de zone de branchement (2) sont disposées horizontalement, et les multiples pieux en béton armé coulés dans un trou de forage (3) sont disposés au niveau des surfaces inférieures des dalles de radier en béton armé de traitement de fondation de zone de branchement (2) ; les pieux en béton armé coulés dans un trou de forage (3) pénètrent dans une strate souple (5) pour s'étendre dans une strate de support (6), de façon à diminuer la déformation de poutres de branchement dans le processus de rotation. La présente invention s'assure que des poutres de branchement ne sont pas sensiblement déformées dans le processus de rotation en raison d'une rigidité de fondation insuffisante, et satisfait les exigences de résistance et de stabilité de fondation des poutres de branchement.
PCT/CN2017/077334 2016-04-29 2017-03-20 Structure de fondation de branchement distribuée de colonne nervurée pour ligne de lévitation magnétique faible à vitesse moyenne à lente WO2017185905A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2016102848372 2016-04-29
CN201610284837.2A CN105951537B (zh) 2016-04-29 2016-04-29 一种中低速磁浮低置线路肋柱分散式道岔基础结构

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108459154A (zh) * 2018-05-16 2018-08-28 山东省公路桥梁建设有限公司 一种带有约束功能的混凝土湿接缝试验台及试验方法
CN113089710A (zh) * 2021-04-21 2021-07-09 中国五冶集团有限公司 一种筏板钢筋混凝土结构施工辅助工具
CN114753401A (zh) * 2022-04-08 2022-07-15 中铁十九局集团第五工程有限公司 隧道底部溶洞处理的施工方法
CN115478553A (zh) * 2022-09-23 2022-12-16 中国五冶集团有限公司 筏板浇筑成型用支撑架
CN115506362A (zh) * 2022-09-02 2022-12-23 中国建筑第二工程局有限公司 一种淤泥质土体深浅基坑支护结构及其施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951537B (zh) * 2016-04-29 2017-10-03 中铁第四勘察设计院集团有限公司 一种中低速磁浮低置线路肋柱分散式道岔基础结构
CN110258221A (zh) * 2019-06-24 2019-09-20 中铁第四勘察设计院集团有限公司 一种箱型框路基

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CN205617160U (zh) * 2016-04-29 2016-10-05 中铁第四勘察设计院集团有限公司 一种中低速磁浮低置线路肋柱分散式道岔基础结构

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JP2005273296A (ja) * 2004-03-25 2005-10-06 Geotop Corp 基礎構造
CN1876970A (zh) * 2005-06-10 2006-12-13 李仁平 长短桩正方单元组合型复合桩基
CN201713742U (zh) * 2010-05-14 2011-01-19 中铁第一勘察设计院集团有限公司 一种埋入式连续桩板结构
CN202595756U (zh) * 2012-03-31 2012-12-12 上海市电力公司 一种窄基输电塔桩筏基础结构
CN203795451U (zh) * 2014-02-19 2014-08-27 中铁第四勘察设计院集团有限公司 缺陷预制打入桩地基的补强加固结构
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CN105951537A (zh) * 2016-04-29 2016-09-21 中铁第四勘察设计院集团有限公司 一种中低速磁浮低置线路肋柱分散式道岔基础结构
CN205617160U (zh) * 2016-04-29 2016-10-05 中铁第四勘察设计院集团有限公司 一种中低速磁浮低置线路肋柱分散式道岔基础结构

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108459154A (zh) * 2018-05-16 2018-08-28 山东省公路桥梁建设有限公司 一种带有约束功能的混凝土湿接缝试验台及试验方法
CN108459154B (zh) * 2018-05-16 2023-11-03 山东省公路桥梁建设有限公司 一种带有约束功能的混凝土湿接缝试验台及试验方法
CN113089710A (zh) * 2021-04-21 2021-07-09 中国五冶集团有限公司 一种筏板钢筋混凝土结构施工辅助工具
CN114753401A (zh) * 2022-04-08 2022-07-15 中铁十九局集团第五工程有限公司 隧道底部溶洞处理的施工方法
CN114753401B (zh) * 2022-04-08 2023-05-26 中铁十九局集团第五工程有限公司 隧道底部溶洞处理的施工方法
CN115506362A (zh) * 2022-09-02 2022-12-23 中国建筑第二工程局有限公司 一种淤泥质土体深浅基坑支护结构及其施工方法
CN115506362B (zh) * 2022-09-02 2023-07-25 中国建筑第二工程局有限公司 一种淤泥质土体深浅基坑支护结构及其施工方法
CN115478553A (zh) * 2022-09-23 2022-12-16 中国五冶集团有限公司 筏板浇筑成型用支撑架

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