WO2017185906A1 - Transitional structure for turnout and non-turnout zones in low-set, mid-to-low speed magnetic levitation lines - Google Patents

Transitional structure for turnout and non-turnout zones in low-set, mid-to-low speed magnetic levitation lines Download PDF

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Publication number
WO2017185906A1
WO2017185906A1 PCT/CN2017/077336 CN2017077336W WO2017185906A1 WO 2017185906 A1 WO2017185906 A1 WO 2017185906A1 CN 2017077336 W CN2017077336 W CN 2017077336W WO 2017185906 A1 WO2017185906 A1 WO 2017185906A1
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turnout
zone
bearing beam
reinforced concrete
low
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PCT/CN2017/077336
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French (fr)
Chinese (zh)
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郭建湖
姜鹰
李小和
赵新益
姚洪锡
李巍
王勇刚
杨辉建
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中铁第四勘察设计院集团有限公司
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Publication of WO2017185906A1 publication Critical patent/WO2017185906A1/en

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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
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/30—Tracks for magnetic suspension or levitation vehicles
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • 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
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/30—Tracks for magnetic suspension or levitation vehicles
    • E01B25/34—Switches; Frogs; Crossings

Definitions

  • the invention belongs to the field of low-profile line structure of medium and low-speed maglev traffic engineering, and more particularly to a transition section structure of a middle and low speed magnetic floating low-position turnout zone and a non-turnout zone.
  • 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 University of Science and Technology Test Line, the Qingcheng Mountain Test Line, and the Tangshan Experimental Line, but it has not been put into operation, and all of them are mainly elevated structures. The structure of the transition section between the vehicular and non-drain regions is rarely seen. Research and application.
  • the train lanes in the depot are realized by the switch machine, and the high-speed train passes the impact on the ballast.
  • the design is usually arranged in a position where the base 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, and the uneven deformation between the ballast beam and the low-track bearing beam is more likely to occur.
  • Affecting the comfort and normal lane change of the maglev train it is required that the settlement and rigidity between the ballast beam and the low-track line bearing beam and the foundation of the two must achieve a uniform transition.
  • the load of the ballast beam of the ballast beam and the low-line line is different, and the low-line bearing beam is built on the roadbed, it is difficult to avoid uneven settlement between the two; the low-line bearing beam adopts the ballast beam
  • the same basic type is easy to achieve settlement and stiffness transition, but it is often uneconomical.
  • the present invention provides a transition section structure of a low-speed magnetic floating low-position turnout zone and a non-turnout zone, which can ensure that the ballast beam is not caused by the insufficient rigidity of the foundation foundation during the rotation process. Large deformation, meeting the requirements of the ballast beam for foundation strength and stability.
  • a transition section structure of a mid-low speed magnetic floating low-rise turnout zone and a non-track zone which is characterized in that it comprises a non-turnout reinforced concrete slab, a reinforced concrete slab of a ballast zone, and a steel bar.
  • the reinforced concrete slab of the turnout zone and the reinforced concrete slab of the non-track area are horizontally fixed, and both are supported by a weak formation, and the weak formation is supported by the bearing layer;
  • the right end of the reinforced concrete slab of the turnout area is in contact with the left end of the reinforced concrete slab of the non-track area;
  • the reinforced concrete bored pile and the rigid pile composite foundation are disposed on a bottom surface of the reinforced concrete slab of the turnout area and a bottom surface of the reinforced concrete slab of the non-track area;
  • the number of the reinforced concrete ballast beam strip foundation is plural and they are all fixedly disposed on the top surface of the reinforced concrete slab of the turnout zone;
  • the non-turnout area rail-bearing beam overlapping platform is fixedly disposed on a top surface of the reinforced concrete slab of the turnout area;
  • the top surface of the non-turnout reinforced concrete slab receives the lower subgrade of the low-profile line bearing beam
  • the reinforced concrete slab of the ballast zone and the reinforced concrete slab of the non-drainage zone jointly undertake the trapezoidal filling body under the bearing beam of the non-track zone, the left end of the trapezoidal filling body of the non-tracking zone bearing beam and the said
  • the right end of the bridge beam overlapping platform of the non-track area abuts, and the right end and the low line are tracked The left end of the subgrade under the beam abuts;
  • the underlying trapezoidal filling body of the non-turnout rail bearing beam and the lower subgrade of the low-tracking rail-bearing beam jointly receive the non-tracking zone bearing beam, and the non-tracking zone bearing beam comprises the upper part of the non-tracking zone bearing beam a beam structure and a non-turnout area bearing beam bottom plate, wherein a bottom surface of the non-turnout area bearing beam bottom plate abuts the lower roadbed beam under the non-track zone bearing frame and the lower line bearing beam lower roadbed;
  • the boss block is fixedly disposed on a top surface of the non-turnout area rail-bearing beam overlapping platform for preventing lateral displacement of the non-turnout area bearing beam floor;
  • the non-turnout area rail-bearing beam lap joint platform, the non-tracking area under-bearing beam under the trapezoidal filling body and the low-line line bearing beam lower roadbed abut to jointly undertake the non-turnout area rail-bearing beam outer roadbed filler, and
  • the front end and the rear end of the bottom plate of the non-tracking zone of the non-turning zone are fixedly disposed on the outer roadbed filler of the non-tracking zone.
  • the rigid pile composite foundation comprises a CFG pile and/or a plain concrete pile.
  • the non-turnout area rail-bearing beam bottom plate is connected to the non-turnout area rail-bearing beam overlapping platform by a pin, and the pin is vertically fixedly disposed.
  • the pin comprises a pre-embedded reinforcing bar, a tarpaulin and a stainless steel sleeve, and the pre-embedded reinforcing bar is located in the stainless steel sleeve and the asphalt rib is fixedly disposed therebetween.
  • a wear-resistant sliding layer is fixedly disposed between the non-turnout zone rail-bearing beam bottom plate and the non-turnout zone rail-bearing beam overlapping platform.
  • the lower part of the reinforced concrete ballast beam strip foundation structure of the transition section of the low-rise turnout zone and the non-track zone is strengthened by reinforced concrete bored pile + reinforced concrete slab structure with good strength and integrity, and the pile foundation passes through the weak The stratum extends into the reliable bearing layer, the reinforced concrete bored pile, the reinforced concrete slab, the reinforced concrete ballast beam strip foundation, the non-turnout area bearing beam lap joint platform and the rigid connection between the boss stops, to bear Pressure, tension, bending, twisting, etc. transmitted by the ballast beam
  • the miscellaneous load ensures that the ballast beam does not undergo excessive deformation due to insufficient foundation foundation stiffness during the rotation process, and meets the requirements of the ballast beam for foundation strength and stability.
  • the low-line line foundation of the transition zone between the low-rise turnout zone and the non-turnout zone is connected with the rigid pile composite foundation such as CFG pile and plain concrete pile + reinforced concrete raft structure, and the joint is fixed.
  • the low-line embankment filling transition section packing can be used to realize the stiffness and settlement transition of the foundation foundation, and the economical performance of the reinforced concrete bored pile + raft structure is better.
  • transition section structure of the low-rise turnout zone and the non-turnout zone is fixed at the end of the reinforced concrete slab of the turnout area, and the non-track zone bearing beam lap joint platform is fixed, and the non-turnout zone bearing beam is fixedly set in the non-track zone.
  • the boss block is arranged on both sides, and the pin and the wear-resistant sliding layer are arranged between the non-turning zone bearing beam and the lap joint platform to fix the non-turning zone bearing beam and improve the non-tracking
  • the lateral stability of the bearing beam of the area and the release of the longitudinal temperature stress thus avoiding the settlement difference between the low-line bearing beam and the track beam, and achieving the smooth transition of the F-track between the ballast zone and the non-track zone.
  • FIG. 1 is a longitudinal sectional view showing a structure of a transition section between a low-rise turnout zone and a non-turnout zone of the present invention
  • FIG. 2 is a plan view showing the structure of a transition section between a low-rise turnout zone and a non-turnout zone of the present invention
  • FIG. 3 is a plan view showing the connection structure of the track-bearing beam of the low-line non-turnout zone and the ballast beam foundation transition structure of the present invention
  • Figure 4 is a cross-sectional view showing the transition structure I-I of the low-rise turnout region and the non-turnout region of the present invention
  • Figure 5 is a cross-sectional view showing the transition structure II-II of the low-rise turnout zone and the non-turnout zone of the present invention
  • Fig. 6 is a structural view showing the connection of the bearing beam of the low-line non-turnout zone and the ballast beam foundation pin of the present invention.
  • a transition section structure of a middle and low speed magnetic floating low-rise turnout zone and a non-turnout zone is characterized in that it comprises a non-turnout reinforced concrete slab, a reinforced concrete slab in a turnout zone, and a reinforced concrete turnout.
  • the reinforced concrete slab 2 of the turnout area and the reinforced concrete slab 1 of the non-track area are horizontally fixed, and both are supported by the weak formation 11, and the weak formation 11 is supported by the holding layer 12;
  • the right end of the reinforced concrete slab 2 of the turnout area is in contact with the left end of the reinforced concrete slab 1 of the non-track area;
  • the bottom surface of the reinforced concrete slab 2 of the turnout area and the bottom surface of the reinforced concrete slab 1 of the non-track area are provided with the reinforced concrete bored pile 5 and the rigid pile composite foundation 4;
  • the number of the reinforced concrete ballast beam strip foundations 3 is plural and they are all fixedly disposed on the top surface of the reinforced concrete slab 2 of the turnout zone;
  • the non-turnout area rail-bearing beam lap joint platform 8 is fixedly disposed on the top surface of the reinforced concrete slab 2 of the turnout area;
  • the top surface of the reinforced concrete slab 1 of the non-circumferential area receives the subgrade 10 of the low-line line bearing beam
  • the reinforced concrete slab 2 of the turnout area and the reinforced concrete slab 1 of the non-track area jointly undertake the trapezoidal filling body 9 under the bearing beam of the non-track area, and the trapezoidal filling body of the non-track area under the rail beam
  • the left end abuts the right end of the non-turnout area rail-bearing beam overlapping platform 8, and the right end thereof abuts the left end of the low-line line bearing beam lower subgrade 10;
  • the non-track zone under-beam trapezoidal fill body 9 and the low-line track-bearing beam lower roadbed 10 jointly receive the non-track zone rail-bearing beam 6, and the non-track zone rail-bearing beam 6 includes a non-turnout zone
  • the subgrade 10 under the rail beam abuts;
  • the boss block 7 is fixedly disposed on the top surface of the non-turnout area rail-bearing beam overlapping platform 8 for preventing lateral displacement of the non-turnout area rail-bearing beam bottom plate 6.2;
  • the non-turnout area rail-bearing beam lap joint platform 8, the non-tracking area bearing beam lower trapezoidal filling body 9 and the low-line line bearing rail lower road base 10 abut to jointly undertake the non-tracking area bearing rail outer roadbed packing 15.
  • the outer roadbed filler 15 of the non-track zone rail-bearing beam is fixedly disposed at the front end and the rear end of the non-track zone rail-bearing beam bottom plate 6.2.
  • the reinforced concrete slabs in the non-circular area, the non-track area bearing beam 6, the non-drainage area bearing beam splicing platform 8, the non-drainage area bearing beam under the trapezoidal filling body 9 and the non-drain area bearing beam outer roadbed The structure of the packing 15 and the like are fixedly disposed in the non-drain region 200, and the structures such as the reinforced concrete slab 2 in the turnout area and the strip foundation 3 of the reinforced concrete ballast beam are fixedly disposed in the turnout area 100.
  • the rigid pile composite foundation 4 comprises CFG piles and/or plain concrete piles.
  • non-turnout area rail-bearing beam bottom plate 6.2 is connected to the non-turnout area rail-bearing beam overlapping platform 8 by pins 13, and the pins 13 are vertically fixedly disposed.
  • the pin 13 includes a pre-embedded reinforcing bar 13.1, a tarpaulin 13.2, and a stainless steel bushing 13.3, and the pre-embedded reinforcing bar 13.1 is located in the stainless steel bushing 13.3 and the asphalt rib is fixedly disposed therebetween 13.2.
  • a wear-resistant sliding layer 14 is fixedly disposed between the non-tracking zone rail-bearing beam bottom plate 6.2 and the non-tracking zone rail-bearing beam overlapping platform 8.
  • the reinforced concrete ballast beam strip foundation 3 is made of reinforced concrete bored pile 5 and reinforced concrete slab 2 with good strength and integrity.
  • the reinforced concrete bored pile 5 extends through the weak stratum 11 into the reliable bearing layer. 12, reinforced concrete bored pile 5, reinforced concrete
  • the slab 2, the reinforced concrete ballast beam strip foundation 3, the non-turnout area bearing beam lap platform 8 and the boss block 7 are rigidly connected to bear the pressure, tension, bending and twisting of the ballast beam transmission.
  • the load ensures that the ballast beam does not undergo excessive deformation due to insufficient foundation foundation stiffness during the rotation process, and meets the requirements of the ballast beam for foundation strength and stability.
  • the low-lying line foundation that is connected with the ballast beam foundation is reinforced with rigid pile composite foundation 4 such as CFG pile and plain concrete pile and reinforced concrete slab 1 , and the low-line line embankment is fixed at the junction to fill the transition section filler to form a non-track.
  • the trapezoidal filling body 9 under the bearing beam of the area can realize the stiffness and settlement transition of the foundation foundation, and the economical performance of the reinforced concrete bored pile + reinforced concrete slab structure is better.
  • a non-canad area bearing beam lap joint platform 8 is fixed at one end of the reinforced concrete slab 2 at the turnout area, and the non-tracking area bearing beam 6 is fixedly arranged on the non-tracking area bearing beam lap platform 8 with a pin 13 measures are used to fix the non-track area rail-bearing beam 6, and the front and rear ends are provided with a boss block 7 to protect the roadbed packing 15 within the height range of the 6.2 beam of the non-turnout rail-bearing beam floor plate, for improving the non-turnout area bearing rail The lateral stability of the beam 6.
  • a wear-resistant sliding layer 14 composed of two layers of polyester filament composite polyethylene geomembrane is laid between 8 to buffer the impact force of the maglev train and release the longitudinal temperature stress, thereby avoiding the settlement of the low-line bearing beam and the track beam. Poor, the smooth transition of the F-track of the 200 section of the turnout area and the non-track area is realized.
  • the reinforced concrete ballast beam strip foundation 3 of the present invention is reinforced with reinforced concrete bored piles 5 and reinforced concrete slabs with good strength and integrity, and the reinforced concrete bored piles 5 extend through the weak stratum 1 and reliably hold
  • the force layer 12, the reinforced concrete bored pile 5, the reinforced concrete slab, the reinforced concrete ballast beam strip foundation 3, the non-track area bearing beam lap platform 8 and the boss block 7 are rigidly connected for It is responsible for the complex loads such as pressure, tension, bending and torsion transmitted by the ballast beam, ensuring that the ballast beam does not become too large due to insufficient foundation stiffness during the rotation process. Shape, meeting the requirements of the ballast beam for foundation strength and stability.
  • the low-lying line foundation that is connected with the ballast beam foundation is reinforced with rigid pile composite foundation 4 such as CFG pile and plain concrete pile and reinforced concrete slab 1 in non-ramp area, and the transition section of the low-rise line embankment is fixed at the junction.
  • the packing can realize the stiffness and settlement transition of the foundation foundation, and it is more economical than the reinforced concrete bored pile 5+ reinforced concrete slab structure.
  • the low-line line bearing beam is fixedly arranged on the low-line line bearing beam overlapping platform, and the two sides are provided with a boss block 7 and a pin 13 between the low-line line bearing beam and the lap platform.
  • the low-line bearing beam is fixed and the roadbed filler 15 outside the rail-bearing beam of the non-turnout area is protected, which avoids the settlement difference between the low-line bearing beam and the track beam, and realizes the smooth transition of the F-track between the ballast zone and the non-track zone. .
  • the construction process of the invention is as follows:
  • the formwork is removed and the non-track area bearing beam is filled.
  • the trapezoidal filling body 9 Under the subgrade 10 and the non-drainage area under the rail beam, the trapezoidal filling body 9, and then the wear-resistant sliding layer 14 between the non-canad area bearing beam and the lap joint platform, after compaction and inspection, the construction of the low-line line bearing Beam.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
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  • Machines For Laying And Maintaining Railways (AREA)

Abstract

A transitional structure for turnout and non-turnout zones on low-set, mid-to-low speed magnetic levitation lines comprises non-turnout zone reinforced concrete raft slabs (1), turnout zone reinforced concrete raft slabs (2), reinforced concrete turnout beam foundations (3), multiple rigid pile composite foundations (4), multiple reinforced concrete bored piles (5), non-turnout zone track-bearing beams (6), boss blocks (7), non-turnout zone track-bearing beam lapping platforms (8), trapezoidal filling bodies (9) under the non-turnout zone track-bearing beams, a roadbed (10) under the track-bearing beams (15) in the low-set tracks, roadbed ballast (15) on the outside of the non-turnout zone track-bearing beams. The structure can ensure that the turnout beams do not experience excessive deformation during the turning process due to insufficient rigidity of the foundations, and satisfies the requirements of foundation strength and stability.

Description

一种中低速磁浮低置线路道岔区与非道岔区过渡段结构Transitional section structure of a mid-low speed magnetic floating low-position turnout zone and a non-turnout zone 【技术领域】[Technical Field]
本发明属于中低速磁浮交通工程低置线路结构领域，更具体地，涉及一种中低速磁浮低置线路道岔区与非道岔区过渡段结构。The invention belongs to the field of low-profile line structure of medium and low-speed maglev traffic engineering, and more particularly to a transition section structure of a middle and low speed magnetic floating low-position turnout zone and a non-turnout zone.
【背景技术】【Background technique】
中低速磁悬浮轨道交通属于一种新型交通方式，目前国内外的研究成果较少，全世界开通运营的线路更是少数。目前只有2005年3月日本建设开通的中低速磁悬浮铁路商业运行线-东部丘陵线和2014年6月韩国开通的中低速磁悬浮铁路商务运行线。而中国的中低速磁悬浮交通目前只有国防科技大学试验线、青城山试验线、唐山实验线，但没有投入运营，且均以高架结构为主，鲜见有关车辆段道岔区和非道岔区过渡段结构的研究与应用。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 University of Science and Technology Test Line, the Qingcheng Mountain Test Line, and the Tangshan Experimental Line, but it has not been put into operation, and all of them are mainly elevated structures. The structure of the transition section between the vehicular and non-drain regions is rarely seen. Research and application.
在轮轨高速铁路中，车辆段内列车变道通过转辙机械实现，列车高速通过对道岔的冲击较大，设计时通常使道岔布置于基础刚度相对均匀的位置以尽量减少对道岔的冲击，从而减少养护维修。与轮轨铁路道岔不同，中低速磁悬浮由于采取特殊的抱轨运行的方式，磁浮列车变道通过道岔梁整体转动一定角度后和与其相接的低置线路承轨梁顺接实现。相比于轮轨铁路，道岔梁实现转动对其承担压、拉、弯、扭等复杂荷载作用的基础要求更高，道岔梁与低置线路承轨梁之间更易产生不均匀变形，严重时影响磁浮列车的舒适性和正常变道，这就要求道岔梁与低置线路承轨梁及二者的基础之间沉降及刚度必须实现均匀过渡。由于道岔梁与低置线路承轨梁荷载不同，且低置线路承轨梁修筑于填土路基之上，二者之间难以避免的产生不均匀沉降；低置线路承轨梁采用与道岔梁一样的基础型式虽便于实现沉降与刚度过渡，但往往不经济。 In the wheel-rail high-speed railway, the train lanes in the depot are realized by the switch machine, and the high-speed train passes the impact on the ballast. The design is usually arranged in a position where the base stiffness is relatively uniform to minimize the impact on the ballast. Thereby reducing maintenance and repair. Different from the wheel-rail railway turnout, 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. Compared with the wheel-rail railway, the rotation of the ballast beam is more demanding for the complex loads such as pressing, pulling, bending and twisting, and the uneven deformation between the ballast beam and the low-track bearing beam is more likely to occur. Affecting the comfort and normal lane change of the maglev train, it is required that the settlement and rigidity between the ballast beam and the low-track line bearing beam and the foundation of the two must achieve a uniform transition. Because the load of the ballast beam of the ballast beam and the low-line line is different, and the low-line bearing beam is built on the roadbed, it is difficult to avoid uneven settlement between the two; the low-line bearing beam adopts the ballast beam The same basic type is easy to achieve settlement and stiffness transition, but it is often uneconomical.
【发明内容】[Summary of the Invention]
针对现有技术的以上缺陷或改进需求，本发明提供了一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其能确保道岔梁在转动过程中不因地基基础刚度不足产生过大变形，满足道岔梁对基础强度与稳定性的要求。In view of the above defects or improvement requirements of the prior art, the present invention provides a transition section structure of a low-speed magnetic floating low-position turnout zone and a non-turnout zone, which can ensure that the ballast beam is not caused by the insufficient rigidity of the foundation foundation during the rotation process. Large deformation, meeting the requirements of the ballast beam for foundation strength and stability.
为实现上述目的，按照本发明，提供了一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，包括非道岔区钢筋混凝土筏板、道岔区钢筋混凝土筏板、钢筋混凝土道岔梁条形基础、多根刚性桩复合地基、多根钢筋混凝土钻孔灌注桩、非道岔区承轨梁、凸台挡块、非道岔区承轨梁搭接平台、非道岔区承轨梁下梯形填筑体、低置线路承轨梁下路基及非道岔区承轨梁外侧路基填料，其中，In order to achieve the above object, according to the present invention, a transition section structure of a mid-low speed magnetic floating low-rise turnout zone and a non-track zone is provided, which is characterized in that it comprises a non-turnout reinforced concrete slab, a reinforced concrete slab of a ballast zone, and a steel bar. Concrete ballast beam strip foundation, multiple rigid pile composite foundations, multiple reinforced concrete bored piles, non-turnout area bearing beam, boss block, non-turnout area bearing beam overlapping platform, non-turnout area bearing track a trapezoidal filling body under the beam, a subgrade under the low-line bearing beam and a roadbed outside the non-cannoning area, wherein
所述道岔区钢筋混凝土筏板和所述非道岔区钢筋混凝土筏板均水平固定设置，并且二者均通过软弱地层支撑，所述软弱地层通过持力层支撑；The reinforced concrete slab of the turnout zone and the reinforced concrete slab of the non-track area are horizontally fixed, and both are supported by a weak formation, and the weak formation is supported by the bearing layer;
所述道岔区钢筋混凝土筏板的右端与所述非道岔区钢筋混凝土筏板的左端接触；The right end of the reinforced concrete slab of the turnout area is in contact with the left end of the reinforced concrete slab of the non-track area;
所述道岔区钢筋混凝土筏板的底面和非道岔区钢筋混凝土筏板的底面设置所述钢筋混凝土钻孔灌注桩和所述刚性桩复合地基；The reinforced concrete bored pile and the rigid pile composite foundation are disposed on a bottom surface of the reinforced concrete slab of the turnout area and a bottom surface of the reinforced concrete slab of the non-track area;
所述钢筋混凝土道岔梁条形基础的数量为多个并且它们均固定设置在所述道岔区钢筋混凝土筏板的顶面上；The number of the reinforced concrete ballast beam strip foundation is plural and they are all fixedly disposed on the top surface of the reinforced concrete slab of the turnout zone;
所述非道岔区承轨梁搭接平台固定设置在所述道岔区钢筋混凝土筏板的顶面上；The non-turnout area rail-bearing beam overlapping platform is fixedly disposed on a top surface of the reinforced concrete slab of the turnout area;
所述非道岔区钢筋混凝土筏板的顶面承接所述低置线路承轨梁下路基；The top surface of the non-turnout reinforced concrete slab receives the lower subgrade of the low-profile line bearing beam;
所述道岔区钢筋混凝土筏板和非道岔区钢筋混凝土筏板共同承接所述非道岔区承轨梁下梯形填筑体，所述非道岔区承轨梁下梯形填筑体的左端与所述非道岔区承轨梁搭接平台的右端抵接，其右端与所述低置线路承轨 梁下路基的左端抵接；The reinforced concrete slab of the ballast zone and the reinforced concrete slab of the non-drainage zone jointly undertake the trapezoidal filling body under the bearing beam of the non-track zone, the left end of the trapezoidal filling body of the non-tracking zone bearing beam and the said The right end of the bridge beam overlapping platform of the non-track area abuts, and the right end and the low line are tracked The left end of the subgrade under the beam abuts;
所述非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基共同承接所述非道岔区承轨梁，并且所述非道岔区承轨梁包括非道岔区承轨梁上部梁式结构和非道岔区承轨梁底板，所述非道岔区承轨梁底板的底面与所述非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基抵接；The underlying trapezoidal filling body of the non-turnout rail bearing beam and the lower subgrade of the low-tracking rail-bearing beam jointly receive the non-tracking zone bearing beam, and the non-tracking zone bearing beam comprises the upper part of the non-tracking zone bearing beam a beam structure and a non-turnout area bearing beam bottom plate, wherein a bottom surface of the non-turnout area bearing beam bottom plate abuts the lower roadbed beam under the non-track zone bearing frame and the lower line bearing beam lower roadbed;
所述凸台挡块固定设置于所述非道岔区承轨梁搭接平台的顶面上，以用于防止所述非道岔区承轨梁底板横向位移；The boss block is fixedly disposed on a top surface of the non-turnout area rail-bearing beam overlapping platform for preventing lateral displacement of the non-turnout area bearing beam floor;
所述非道岔区承轨梁搭接平台、非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基抵接共同承接所述非道岔区承轨梁外侧路基填料，并且在所述非道岔区承轨梁底板的前端和后端均固定设置所述非道岔区承轨梁外侧路基填料。The non-turnout area rail-bearing beam lap joint platform, the non-tracking area under-bearing beam under the trapezoidal filling body and the low-line line bearing beam lower roadbed abut to jointly undertake the non-turnout area rail-bearing beam outer roadbed filler, and The front end and the rear end of the bottom plate of the non-tracking zone of the non-turning zone are fixedly disposed on the outer roadbed filler of the non-tracking zone.
优选地，所述刚性桩复合地基包括CFG桩和/或素混凝土桩。Preferably, the rigid pile composite foundation comprises a CFG pile and/or a plain concrete pile.
优选地，所述非道岔区承轨梁底板通过销钉与所述非道岔区承轨梁搭接平台连接，所述销钉竖直固定设置。Preferably, the non-turnout area rail-bearing beam bottom plate is connected to the non-turnout area rail-bearing beam overlapping platform by a pin, and the pin is vertically fixedly disposed.
优选地，所述销钉包括预埋连接钢筋、沥青麻筋和不锈钢套管，所述预埋连接钢筋位于所述不锈钢套管内并且二者之间固定设置所述沥青麻筋。Preferably, the pin comprises a pre-embedded reinforcing bar, a tarpaulin and a stainless steel sleeve, and the pre-embedded reinforcing bar is located in the stainless steel sleeve and the asphalt rib is fixedly disposed therebetween.
优选地，所述非道岔区承轨梁底板与所述非道岔区承轨梁搭接平台之间固定设置有耐磨滑动层。Preferably, a wear-resistant sliding layer is fixedly disposed between the non-turnout zone rail-bearing beam bottom plate and the non-turnout zone rail-bearing beam overlapping platform.
总体而言，通过本发明所构思的以上技术方案与现有技术相比，能够取得下列有益效果：In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:
1)该低置线路道岔区与非道岔区过渡段结构钢筋混凝土道岔梁条形基础下部地基采用强度及整体性好的钢筋混凝土钻孔灌注桩+钢筋混凝土筏板结构加固，桩基穿过软弱地层伸入可靠持力层，钢筋混凝土钻孔灌注桩、钢筋混凝土筏板、钢筋混凝土道岔梁条形基础、非道岔区承轨梁搭接平台以及凸台挡块之间刚性连接，用以承担道岔梁传递的压、拉、弯、扭等复 杂荷载，确保道岔梁在转动过程中不因地基基础刚度不足产生过大变形，满足道岔梁对基础强度与稳定性的要求。1) The lower part of the reinforced concrete ballast beam strip foundation structure of the transition section of the low-rise turnout zone and the non-track zone is strengthened by reinforced concrete bored pile + reinforced concrete slab structure with good strength and integrity, and the pile foundation passes through the weak The stratum extends into the reliable bearing layer, the reinforced concrete bored pile, the reinforced concrete slab, the reinforced concrete ballast beam strip foundation, the non-turnout area bearing beam lap joint platform and the rigid connection between the boss stops, to bear Pressure, tension, bending, twisting, etc. transmitted by the ballast beam The miscellaneous load ensures that the ballast beam does not undergo excessive deformation due to insufficient foundation foundation stiffness during the rotation process, and meets the requirements of the ballast beam for foundation strength and stability.
2)该低置线路道岔区与非道岔区过渡段结构与道岔梁基础顺接的低置线路地基采用CFG桩、素混凝土桩等刚性桩复合地基+钢筋混凝土筏板结构加固，相接处固定设置低置线路路堤填筑过渡段填料，可实现地基基础的刚度与沉降过渡，且相比全部采用钢筋混凝土钻孔灌注桩+筏板结构经济性更好。2) The low-line line foundation of the transition zone between the low-rise turnout zone and the non-turnout zone is connected with the rigid pile composite foundation such as CFG pile and plain concrete pile + reinforced concrete raft structure, and the joint is fixed. The low-line embankment filling transition section packing can be used to realize the stiffness and settlement transition of the foundation foundation, and the economical performance of the reinforced concrete bored pile + raft structure is better.
3)该低置线路道岔区与非道岔区过渡段结构在道岔区钢筋混凝土筏板一端固定设置非道岔区承轨梁搭接平台，将非道岔区承轨梁固定设置于非道岔区承轨梁搭接平台之上，两侧采用设凸台挡块，非道岔区承轨梁与搭接平台之间设销钉和耐磨滑动层等措施用以固定非道岔区承轨梁，提高非道岔区承轨梁的横向稳定性，并释放纵向温度应力，从而避免了低置线路承轨梁与轨道梁产生沉降差，实现了道岔区与非道岔区间F轨的平顺过渡。3) The transition section structure of the low-rise turnout zone and the non-turnout zone is fixed at the end of the reinforced concrete slab of the turnout area, and the non-track zone bearing beam lap joint platform is fixed, and the non-turnout zone bearing beam is fixedly set in the non-track zone. Above the beam lap joint platform, the boss block is arranged on both sides, and the pin and the wear-resistant sliding layer are arranged between the non-turning zone bearing beam and the lap joint platform to fix the non-turning zone bearing beam and improve the non-tracking The lateral stability of the bearing beam of the area and the release of the longitudinal temperature stress, thus avoiding the settlement difference between the low-line bearing beam and the track beam, and achieving the smooth transition of the F-track between the ballast zone and the non-track zone.
【附图说明】[Description of the Drawings]
图1是本发明的低置线路道岔区与非道岔区过渡段结构纵断面示意图；1 is a longitudinal sectional view showing a structure of a transition section between a low-rise turnout zone and a non-turnout zone of the present invention;
图2是本发明的低置线路道岔区与非道岔区过渡段结构平面示意图；2 is a plan view showing the structure of a transition section between a low-rise turnout zone and a non-turnout zone of the present invention;
图3是本发明的低置线路非道岔区承轨梁与道岔梁基础过渡结构连接平面示意图；3 is a plan view showing the connection structure of the track-bearing beam of the low-line non-turnout zone and the ballast beam foundation transition structure of the present invention;
图4是本发明的低置线路道岔区与非道岔区过渡结构I-I剖面示意图；Figure 4 is a cross-sectional view showing the transition structure I-I of the low-rise turnout region and the non-turnout region of the present invention;
图5是本发明的低置线路道岔区与非道岔区过渡结构II-II剖面示意图；Figure 5 is a cross-sectional view showing the transition structure II-II of the low-rise turnout zone and the non-turnout zone of the present invention;
图6是本发明的低置线路非道岔区承轨梁与道岔梁基础销钉连接细部构造图。Fig. 6 is a structural view showing the connection of the bearing beam of the low-line non-turnout zone and the ballast beam foundation pin of the present invention.
【具体实施方式】【detailed description】
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体 实施例仅仅用以解释本发明，并不用于限定本发明。此外，下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specifics described herein The examples are merely illustrative of the invention and are not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
参照图1～图6，一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，包括非道岔区钢筋混凝土筏板1、道岔区钢筋混凝土筏板2、钢筋混凝土道岔梁条形基础3、多根刚性桩复合地基4、多根钢筋混凝土钻孔灌注桩5、非道岔区承轨梁6、凸台挡块7、非道岔区承轨梁搭接平台8、非道岔区承轨梁下梯形填筑体9、低置线路承轨梁下路基10及非道岔区承轨梁外侧路基填料15，其中，Referring to FIG. 1 to FIG. 6 , a transition section structure of a middle and low speed magnetic floating low-rise turnout zone and a non-turnout zone is characterized in that it comprises a non-turnout reinforced concrete slab, a reinforced concrete slab in a turnout zone, and a reinforced concrete turnout. Beam strip foundation 3, multiple rigid pile composite foundation 4, multiple reinforced concrete bored piles 5, non-turnout area bearing beam 6, boss stop block 7, non-track area bearing beam lap platform 8, non The trapezoidal filling body under the bearing beam of the turnout area, the subgrade 10 of the low-line bearing beam and the roadbed outside the non-track area of the non-track area, 15
所述道岔区钢筋混凝土筏板2和所述非道岔区钢筋混凝土筏板1均水平固定设置，并且二者均通过软弱地层11支撑，所述软弱地层11通过持力层12支撑；The reinforced concrete slab 2 of the turnout area and the reinforced concrete slab 1 of the non-track area are horizontally fixed, and both are supported by the weak formation 11, and the weak formation 11 is supported by the holding layer 12;
所述道岔区钢筋混凝土筏板2的右端与所述非道岔区钢筋混凝土筏板1的左端接触；The right end of the reinforced concrete slab 2 of the turnout area is in contact with the left end of the reinforced concrete slab 1 of the non-track area;
所述道岔区钢筋混凝土筏板2的底面和非道岔区钢筋混凝土筏板1的底面设置所述钢筋混凝土钻孔灌注桩5和所述刚性桩复合地基4；The bottom surface of the reinforced concrete slab 2 of the turnout area and the bottom surface of the reinforced concrete slab 1 of the non-track area are provided with the reinforced concrete bored pile 5 and the rigid pile composite foundation 4;
所述钢筋混凝土道岔梁条形基础3的数量为多个并且它们均固定设置在所述道岔区钢筋混凝土筏板2的顶面上；The number of the reinforced concrete ballast beam strip foundations 3 is plural and they are all fixedly disposed on the top surface of the reinforced concrete slab 2 of the turnout zone;
所述非道岔区承轨梁搭接平台8固定设置在所述道岔区钢筋混凝土筏板2的顶面上；The non-turnout area rail-bearing beam lap joint platform 8 is fixedly disposed on the top surface of the reinforced concrete slab 2 of the turnout area;
所述非道岔区钢筋混凝土筏板1的顶面承接所述低置线路承轨梁下路基10；The top surface of the reinforced concrete slab 1 of the non-circumferential area receives the subgrade 10 of the low-line line bearing beam;
所述道岔区钢筋混凝土筏板2和非道岔区钢筋混凝土筏板1共同承接所述非道岔区承轨梁下梯形填筑体9，所述非道岔区承轨梁下梯形填筑体9的左端与所述非道岔区承轨梁搭接平台8的右端抵接，其右端与所述低置线路承轨梁下路基10的左端抵接； The reinforced concrete slab 2 of the turnout area and the reinforced concrete slab 1 of the non-track area jointly undertake the trapezoidal filling body 9 under the bearing beam of the non-track area, and the trapezoidal filling body of the non-track area under the rail beam The left end abuts the right end of the non-turnout area rail-bearing beam overlapping platform 8, and the right end thereof abuts the left end of the low-line line bearing beam lower subgrade 10;
所述非道岔区承轨梁下梯形填筑体9和低置线路承轨梁下路基10共同承接所述非道岔区承轨梁6，并且所述非道岔区承轨梁6包括非道岔区承轨梁上部梁式结构6.1和非道岔区承轨梁底板6.2，所述非道岔区承轨梁底板6.2的底面与所述非道岔区承轨梁下梯形填筑体9和低置线路承轨梁下路基10抵接；The non-track zone under-beam trapezoidal fill body 9 and the low-line track-bearing beam lower roadbed 10 jointly receive the non-track zone rail-bearing beam 6, and the non-track zone rail-bearing beam 6 includes a non-turnout zone The rail beam upper beam structure 6.1 and the non-turnout area rail beam floor 6.2, the bottom surface of the non-track area rail-bearing beam bottom plate 6.2 and the non-turnout area bearing rail lower trapezoidal filling body 9 and the low-line line bearing The subgrade 10 under the rail beam abuts;
所述凸台挡块7固定设置于所述非道岔区承轨梁搭接平台8的顶面上，以用于防止所述非道岔区承轨梁底板6.2横向位移；The boss block 7 is fixedly disposed on the top surface of the non-turnout area rail-bearing beam overlapping platform 8 for preventing lateral displacement of the non-turnout area rail-bearing beam bottom plate 6.2;
所述非道岔区承轨梁搭接平台8、非道岔区承轨梁下梯形填筑体9和低置线路承轨梁下路基10抵接共同承接所述非道岔区承轨梁外侧路基填料15，并且在所述非道岔区承轨梁底板6.2的前端和后端均固定设置所述非道岔区承轨梁外侧路基填料15。The non-turnout area rail-bearing beam lap joint platform 8, the non-tracking area bearing beam lower trapezoidal filling body 9 and the low-line line bearing rail lower road base 10 abut to jointly undertake the non-tracking area bearing rail outer roadbed packing 15. The outer roadbed filler 15 of the non-track zone rail-bearing beam is fixedly disposed at the front end and the rear end of the non-track zone rail-bearing beam bottom plate 6.2.
上述非道岔区钢筋混凝土筏板1、非道岔区承轨梁6、非道岔区承轨梁搭接平台8、非道岔区承轨梁下梯形填筑体9和非道岔区承轨梁外侧路基填料15等结构均固定设置在非道岔区200内，道岔区钢筋混凝土筏板2、钢筋混凝土道岔梁条形基础3等结构均固定设置在道岔区100内。The reinforced concrete slabs in the non-circular area, the non-track area bearing beam 6, the non-drainage area bearing beam splicing platform 8, the non-drainage area bearing beam under the trapezoidal filling body 9 and the non-drain area bearing beam outer roadbed The structure of the packing 15 and the like are fixedly disposed in the non-drain region 200, and the structures such as the reinforced concrete slab 2 in the turnout area and the strip foundation 3 of the reinforced concrete ballast beam are fixedly disposed in the turnout area 100.
进一步，所述刚性桩复合地基4包括CFG桩和/或素混凝土桩。Further, the rigid pile composite foundation 4 comprises CFG piles and/or plain concrete piles.
进一步，所述非道岔区承轨梁底板6.2通过销钉13与所述非道岔区承轨梁搭接平台8连接，所述销钉13竖直固定设置。Further, the non-turnout area rail-bearing beam bottom plate 6.2 is connected to the non-turnout area rail-bearing beam overlapping platform 8 by pins 13, and the pins 13 are vertically fixedly disposed.
进一步，所述销钉13包括预埋连接钢筋13.1、沥青麻筋13.2和不锈钢套管13.3，所述预埋连接钢筋13.1位于所述不锈钢套管13.3内并且二者之间固定设置所述沥青麻筋13.2。Further, the pin 13 includes a pre-embedded reinforcing bar 13.1, a tarpaulin 13.2, and a stainless steel bushing 13.3, and the pre-embedded reinforcing bar 13.1 is located in the stainless steel bushing 13.3 and the asphalt rib is fixedly disposed therebetween 13.2.
进一步，所述非道岔区承轨梁底板6.2与所述非道岔区承轨梁搭接平台8之间固定设置有耐磨滑动层14。Further, a wear-resistant sliding layer 14 is fixedly disposed between the non-tracking zone rail-bearing beam bottom plate 6.2 and the non-tracking zone rail-bearing beam overlapping platform 8.
钢筋混凝土道岔梁条形基础3下部地基采用强度及整体性好的钢筋混凝土钻孔灌注桩5与钢筋混凝土筏板2加固，钢筋混凝土钻孔灌注桩5穿过软弱地层11伸入可靠持力层12，钢筋混凝土钻孔灌注桩5、钢筋混凝土 筏板2、钢筋混凝土道岔梁条形基础3、非道岔区承轨梁搭接平台8以及凸台挡块7之间刚性连接，用以承担道岔梁传递的压、拉、弯、扭等复杂荷载，确保道岔梁在转动过程中不因地基基础刚度不足产生过大变形，满足道岔梁对基础强度与稳定性的要求。The reinforced concrete ballast beam strip foundation 3 is made of reinforced concrete bored pile 5 and reinforced concrete slab 2 with good strength and integrity. The reinforced concrete bored pile 5 extends through the weak stratum 11 into the reliable bearing layer. 12, reinforced concrete bored pile 5, reinforced concrete The slab 2, the reinforced concrete ballast beam strip foundation 3, the non-turnout area bearing beam lap platform 8 and the boss block 7 are rigidly connected to bear the pressure, tension, bending and twisting of the ballast beam transmission. The load ensures that the ballast beam does not undergo excessive deformation due to insufficient foundation foundation stiffness during the rotation process, and meets the requirements of the ballast beam for foundation strength and stability.
与道岔梁基础顺接的低置线路地基采用CFG桩、素混凝土桩等刚性桩复合地基4与钢筋混凝土筏板1加固，相接处固定设置低置线路路堤填筑过渡段填料，形成非道岔区承轨梁下梯形填筑体9，可实现地基基础的刚度与沉降过渡，且相比全部采用钢筋混凝土钻孔灌注桩+钢筋混凝土筏板结构经济性更好。The low-lying line foundation that is connected with the ballast beam foundation is reinforced with rigid pile composite foundation 4 such as CFG pile and plain concrete pile and reinforced concrete slab 1 , and the low-line line embankment is fixed at the junction to fill the transition section filler to form a non-track. The trapezoidal filling body 9 under the bearing beam of the area can realize the stiffness and settlement transition of the foundation foundation, and the economical performance of the reinforced concrete bored pile + reinforced concrete slab structure is better.
在道岔区钢筋混凝土筏板2一端固定设置非道岔区承轨梁搭接平台8，将非道岔区承轨梁6固定设置于非道岔区承轨梁搭接平台8之上，之间设销钉13等措施用以固定非道岔区承轨梁6，前后两端设凸台挡块7挡护非道岔区承轨梁底板6.2的高度范围内的路基填料15，用于提高非道岔区承轨梁6的横向稳定性。A non-canad area bearing beam lap joint platform 8 is fixed at one end of the reinforced concrete slab 2 at the turnout area, and the non-tracking area bearing beam 6 is fixedly arranged on the non-tracking area bearing beam lap platform 8 with a pin 13 measures are used to fix the non-track area rail-bearing beam 6, and the front and rear ends are provided with a boss block 7 to protect the roadbed packing 15 within the height range of the 6.2 beam of the non-turnout rail-bearing beam floor plate, for improving the non-turnout area bearing rail The lateral stability of the beam 6.
非道岔区承轨梁6的一端与钢筋混凝土道岔梁条形基础3共用钢筋混凝土钻孔灌注桩5与钢筋混凝土筏板2，非道岔区承轨梁6与非道岔区承轨梁搭接平台8之间铺设由两层聚酯长丝复合聚乙烯土工膜组成的耐磨滑动层14，以缓冲磁浮列车冲击力，释放纵向温度应力，从而避免了低置线路承轨梁与轨道梁产生沉降差，实现了道岔区100与非道岔区200区间F轨的平顺过渡。One end of the track-bearing beam 6 in the non-track area and the reinforced concrete ballast beam strip foundation 3 share the reinforced concrete bored pile 5 and the reinforced concrete slab 2, the non-drainage area bearing beam 6 and the non-drainage area bearing beam lap platform A wear-resistant sliding layer 14 composed of two layers of polyester filament composite polyethylene geomembrane is laid between 8 to buffer the impact force of the maglev train and release the longitudinal temperature stress, thereby avoiding the settlement of the low-line bearing beam and the track beam. Poor, the smooth transition of the F-track of the 200 section of the turnout area and the non-track area is realized.
本发明的钢筋混凝土道岔梁条形基础3下部地基采用强度及整体性好的钢筋混凝土钻孔灌注桩5与钢筋混凝土筏板加固，钢筋混凝土钻孔灌注桩5穿过软弱地层1伸入可靠持力层12，钢筋混凝土钻孔灌注桩5、钢筋混凝土筏板、钢筋混凝土道岔梁条形基础3、非道岔区承轨梁搭接平台8以及凸台挡块7之间采用刚性连接，用以承担道岔梁传递的压、拉、弯、扭等复杂荷载，确保道岔梁在转动过程中不因地基基础刚度不足产生过大变 形，满足道岔梁对基础强度与稳定性的要求。其次，与道岔梁基础顺接的低置线路地基采用CFG桩、素混凝土桩等刚性桩复合地基4与非岔道区钢筋混凝土筏板1加固，相接处固定设置低置线路路堤填筑过渡段填料，可实现地基基础的刚度与沉降过渡，且相比全部采用钢筋混凝土钻孔灌注桩5+钢筋混凝土筏板结构经济性更好。将低置线路承轨梁固定设置于低置线路承轨梁搭接平台之上，两侧采用设凸台挡块7、低置线路承轨梁与搭接平台之间设销钉13等措施用以固定低置线路承轨梁并挡护非道岔区承轨梁外侧路基填料15，避免了低置线路承轨梁与轨道梁产生沉降差，实现了道岔区与非道岔区间F轨的平顺过渡。The reinforced concrete ballast beam strip foundation 3 of the present invention is reinforced with reinforced concrete bored piles 5 and reinforced concrete slabs with good strength and integrity, and the reinforced concrete bored piles 5 extend through the weak stratum 1 and reliably hold The force layer 12, the reinforced concrete bored pile 5, the reinforced concrete slab, the reinforced concrete ballast beam strip foundation 3, the non-track area bearing beam lap platform 8 and the boss block 7 are rigidly connected for It is responsible for the complex loads such as pressure, tension, bending and torsion transmitted by the ballast beam, ensuring that the ballast beam does not become too large due to insufficient foundation stiffness during the rotation process. Shape, meeting the requirements of the ballast beam for foundation strength and stability. Secondly, the low-lying line foundation that is connected with the ballast beam foundation is reinforced with rigid pile composite foundation 4 such as CFG pile and plain concrete pile and reinforced concrete slab 1 in non-ramp area, and the transition section of the low-rise line embankment is fixed at the junction. The packing can realize the stiffness and settlement transition of the foundation foundation, and it is more economical than the reinforced concrete bored pile 5+ reinforced concrete slab structure. The low-line line bearing beam is fixedly arranged on the low-line line bearing beam overlapping platform, and the two sides are provided with a boss block 7 and a pin 13 between the low-line line bearing beam and the lap platform. The low-line bearing beam is fixed and the roadbed filler 15 outside the rail-bearing beam of the non-turnout area is protected, which avoids the settlement difference between the low-line bearing beam and the track beam, and realizes the smooth transition of the F-track between the ballast zone and the non-track zone. .
本发明施工形成过程如下：The construction process of the invention is as follows:
(1)平整施工场地，施工非道岔区CFG桩、素混凝土桩等刚性桩复合地基4和道岔区钢筋混凝土钻孔灌注桩5。(1) Leveling the construction site, constructing rigid pile composite foundations such as CFG piles and plain concrete piles in non-drainage areas and reinforced concrete bored piles in the turnout area.
(2)对场地进行夯实整平，再进行钢筋混凝土筏板、钢筋混凝土道岔梁条形基础3、搭接平台以及凸台挡块7的钢筋绑扎，其中道岔区钢筋混凝土筏板2钢筋、道岔梁条形基础钢筋与搭接平台及凸台挡块7钢筋应整体绑扎。(2) Compaction and leveling of the site, and then reinforced concrete rafts, reinforced concrete ballast beam strip foundations 3, lap joints and truss retaining blocks 7 steel bars, of which reinforced concrete rafts 2 in the turnout area, ballast The beam-shaped foundation steel bar and the lap joint platform and the boss block 7 steel bars should be bundled integrally.
(3)安装非道岔区钢筋混凝土筏板1、道岔区钢筋混凝土筏板2、条形基础、搭接平台及凸台挡块7的模板，完成销钉13等预埋件的安装，再一次性浇筑完成混凝土。(3) Install the reinforced concrete slabs in the non-turnout area, the reinforced concrete slabs in the turnout area, the strip foundation, the lap joint platform and the formwork of the boss block 7, complete the installation of the embedded parts such as the pins 13, and then Pouring the finished concrete.
(4)待非道岔区钢筋混凝土筏板1、道岔区钢筋混凝土筏板2、条形基础、搭接平台及凸台挡块7达到强度要求后，拆除模板，填筑非道岔区承轨梁下路基10与非道岔区承轨梁下梯形填筑体9，再铺设非道岔区承轨梁与搭接平台之间的耐磨滑动层14，压实并检测合格后施工低置线路承轨梁。(4) After the reinforced concrete slabs in the non-track area, the reinforced concrete slabs 2, the strip foundation, the lap joint platform and the boss block 7 of the turnout area reach the strength requirements, the formwork is removed and the non-track area bearing beam is filled. Under the subgrade 10 and the non-drainage area under the rail beam, the trapezoidal filling body 9, and then the wear-resistant sliding layer 14 between the non-canad area bearing beam and the lap joint platform, after compaction and inspection, the construction of the low-line line bearing Beam.
(5)低置线路承轨梁施工完成后，回填承轨梁两侧的路基填料15，再进行道岔梁吊装即可。 (5) After the construction of the low-line bearing beam is completed, backfill the roadbed packing 15 on both sides of the bearing beam, and then carry out the ballast beam lifting.
本领域的技术人员容易理解，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。 Those skilled in the art will appreciate that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention, All should be included in the scope of protection of the present invention.

Claims (5)

  1. 一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，包括非道岔区钢筋混凝土筏板、道岔区钢筋混凝土筏板、钢筋混凝土道岔梁条形基础、多根刚性桩复合地基、多根钢筋混凝土钻孔灌注桩、非道岔区承轨梁、凸台挡块、非道岔区承轨梁搭接平台、非道岔区承轨梁下梯形填筑体、低置线路承轨梁下路基及非道岔区承轨梁外侧路基填料，其中，A medium-low-speed magnetic floating low-position transition zone between a turnout zone and a non-track zone, characterized in that it comprises a non-turnout reinforced concrete raft, a reinforced concrete raft of a turnout zone, a reinforced concrete ballast beam strip foundation, and a plurality of rigid piles Composite foundation, multiple reinforced concrete bored piles, non-turnout area bearing beam, boss block, non-turnout area bearing beam lap joint platform, non-track area bearing beam under trapezoidal filling body, low line bearing The roadbed under the rail beam and the non-track area of the railroad beam outside the roadbed filler, wherein
    所述道岔区钢筋混凝土筏板和所述非道岔区钢筋混凝土筏板均水平固定设置，并且二者均通过软弱地层支撑，所述软弱地层通过持力层支撑；The reinforced concrete slab of the turnout zone and the reinforced concrete slab of the non-track area are horizontally fixed, and both are supported by a weak formation, and the weak formation is supported by the bearing layer;
    所述道岔区钢筋混凝土筏板的右端与所述非道岔区钢筋混凝土筏板的左端接触；The right end of the reinforced concrete slab of the turnout area is in contact with the left end of the reinforced concrete slab of the non-track area;
    所述道岔区钢筋混凝土筏板的底面和非道岔区钢筋混凝土筏板的底面设置所述钢筋混凝土钻孔灌注桩和所述刚性桩复合地基；The reinforced concrete bored pile and the rigid pile composite foundation are disposed on a bottom surface of the reinforced concrete slab of the turnout area and a bottom surface of the reinforced concrete slab of the non-track area;
    所述钢筋混凝土道岔梁条形基础的数量为多个并且它们均固定设置在所述道岔区钢筋混凝土筏板的顶面上；The number of the reinforced concrete ballast beam strip foundation is plural and they are all fixedly disposed on the top surface of the reinforced concrete slab of the turnout zone;
    所述非道岔区承轨梁搭接平台固定设置在所述道岔区钢筋混凝土筏板的顶面上；The non-turnout area rail-bearing beam overlapping platform is fixedly disposed on a top surface of the reinforced concrete slab of the turnout area;
    所述非道岔区钢筋混凝土筏板的顶面承接所述低置线路承轨梁下路基；The top surface of the non-turnout reinforced concrete slab receives the lower subgrade of the low-profile line bearing beam;
    所述道岔区钢筋混凝土筏板和非道岔区钢筋混凝土筏板共同承接所述非道岔区承轨梁下梯形填筑体，所述非道岔区承轨梁下梯形填筑体的左端与所述非道岔区承轨梁搭接平台的右端抵接，其右端与所述低置线路承轨梁下路基的左端抵接；The reinforced concrete slab of the ballast zone and the reinforced concrete slab of the non-drainage zone jointly undertake the trapezoidal filling body under the bearing beam of the non-track zone, the left end of the trapezoidal filling body of the non-tracking zone bearing beam and the said The right end of the non-turnout area rail-bearing beam lap joint abuts, and the right end thereof abuts the left end of the lower road track-bearing beam lower roadbed;
    所述非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基共同承接所述非道岔区承轨梁，并且所述非道岔区承轨梁包括非道岔区承轨梁上部 梁式结构和非道岔区承轨梁底板，所述非道岔区承轨梁底板的底面与所述非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基抵接；The underlying trapezoidal filling body of the non-turnout rail bearing beam and the lower subgrade of the low-tracking rail-bearing beam jointly receive the non-tracking zone bearing beam, and the non-tracking zone bearing beam comprises the upper part of the non-tracking zone bearing beam a beam structure and a non-turnout area bearing beam bottom plate, wherein a bottom surface of the non-turnout area bearing beam bottom plate abuts the lower roadbed beam under the non-track zone bearing frame and the lower line bearing beam lower roadbed;
    所述凸台挡块固定设置于所述非道岔区承轨梁搭接平台的顶面上，以用于防止所述非道岔区承轨梁底板横向位移；The boss block is fixedly disposed on a top surface of the non-turnout area rail-bearing beam overlapping platform for preventing lateral displacement of the non-turnout area bearing beam floor;
    所述非道岔区承轨梁搭接平台、非道岔区承轨梁下梯形填筑体和低置线路承轨梁下路基抵接共同承接所述非道岔区承轨梁外侧路基填料，并且在所述非道岔区承轨梁底板的前端和后端均固定设置所述非道岔区承轨梁外侧路基填料。The non-turnout area rail-bearing beam lap joint platform, the non-tracking area under-bearing beam under the trapezoidal filling body and the low-line line bearing beam lower roadbed abut to jointly undertake the non-turnout area rail-bearing beam outer roadbed filler, and The front end and the rear end of the bottom plate of the non-tracking zone of the non-turning zone are fixedly disposed on the outer roadbed filler of the non-tracking zone.
  2. 根据权利要求1所述的一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，所述刚性桩复合地基包括CFG桩和/或素混凝土桩。A medium-low speed magnetic floating low-rise turnout zone and a non-turnout zone transition section structure according to claim 1, wherein the rigid pile composite foundation comprises a CFG pile and/or a plain concrete pile.
  3. 根据权利要求1所述的一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，所述非道岔区承轨梁底板通过销钉与所述非道岔区承轨梁搭接平台连接，所述销钉竖直固定设置。The intermediate-low-speed magnetic floating low-position turnout zone and non-turnout zone transition section structure according to claim 1, wherein the non-turnout zone rail-bearing beam bottom plate is connected to the non-turnout zone bearing beam by a pin Connected to the platform, the pins are vertically fixed.
  4. 根据权利要求3所述的一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，所述销钉包括预埋连接钢筋、沥青麻筋和不锈钢套管，所述预埋连接钢筋位于所述不锈钢套管内并且二者之间固定设置所述沥青麻筋。The intermediate-low-speed magnetic floating low-position turnout zone and non-turnout zone transition section structure according to claim 3, wherein the pin comprises a pre-embedded connecting steel bar, a tarpaulin and a stainless steel casing, and the embedded A connecting reinforcing bar is located in the stainless steel sleeve and the asphalt rib is fixedly disposed therebetween.
  5. 根据权利要求1所述的一种中低速磁浮低置线路道岔区与非道岔区过渡段结构，其特征在于，所述非道岔区承轨梁底板与所述非道岔区承轨梁搭接平台之间固定设置有耐磨滑动层。 The intermediate-low-speed magnetic floating low-rise turnout zone and the non-turnout zone transition section structure according to claim 1, wherein the non-turnout zone bearing beam bottom plate and the non-turnout zone bearing beam overlapping platform A wear-resistant sliding layer is fixedly disposed between them.
PCT/CN2017/077336 2016-04-29 2017-03-20 Transitional structure for turnout and non-turnout zones in low-set, mid-to-low speed magnetic levitation lines WO2017185906A1 (en)

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