WO2017121044A1 - 一种预制板式减振轨道结构系统及配套施工方法 - Google Patents
一种预制板式减振轨道结构系统及配套施工方法 Download PDFInfo
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- WO2017121044A1 WO2017121044A1 PCT/CN2016/078779 CN2016078779W WO2017121044A1 WO 2017121044 A1 WO2017121044 A1 WO 2017121044A1 CN 2016078779 W CN2016078779 W CN 2016078779W WO 2017121044 A1 WO2017121044 A1 WO 2017121044A1
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- Prior art keywords
- plate
- track
- damping
- vibration
- rail
- Prior art date
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Images
Classifications
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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
- 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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- 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
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/005—Making of concrete parts of the track in situ
-
- 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
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
-
- 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
- E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
-
- 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
- E01B2204/10—Making longitudinal or transverse sleepers or slabs in situ or embedding them
Definitions
- the invention relates to the field of vibration reduction of rail transit, in particular to a prefabricated plate type vibration damping track structure system and a supporting construction method.
- the construction period of urban rail transit is becoming more and more tense, and the construction process of the track structure is particularly close to the opening operation time.
- the pressure on the construction period is particularly prominent.
- the construction period of a subway line is often compressed for about 9 months. Up to 6 months or even shorter, the traditional track structure type determines the characteristics of many construction operations, manual operation, construction accuracy is not easy to control and construction progress is slow. In the case that the overall construction period and the track-laying period are compressed, the construction accuracy and the quality of the track-laying are seriously affected, resulting in poor line smoothness and comfort of the running vehicle, and frequent orbital diseases, and environmental vibration and noise problems are intensified. .
- the traditional vibration-damping track structure adopts the construction method of tying steel bars and cast-in-place concrete on site.
- the daily construction speed is 25m to 50m
- the construction number needs 80 to 100 people
- the amount of cast-in-place concrete is large, especially in the shield tunnel due to the working surface.
- Narrow, large-scale manual operations lead to low construction accuracy, low work efficiency, high safety risks, and increased costs for design, construction, and maintenance.
- the line disease of the cast-in-place vibration-damping track section occurs frequently, such as the easy cracking of the track bed.
- the designer of the present invention has proposed a prefabricated plate type vibration damping track structure system and a supporting structure thereof through careful design and extensive experimental research. Rapid construction methods and construction equipment to overcome the shortcomings of the current vibration-damping track structure system.
- the object of the present invention is to provide a new type of prefabricated plate type vibration damping track structure system with adjustable vibration damping performance for rail transit.
- the track structure system is suitable for various track vibration reduction requirements, adopts factory manufacturing, realizes highly automated special equipment laying, has the characteristics of fast construction speed, high track structure precision and good line smoothness, and can effectively overcome the existing track structure system. Problems with both vibration-damped and non-damped track structures.
- the present invention discloses a novel prefabricated plate type vibration damping track structure system and supporting construction method.
- the new prefabricated plate-type vibration-damping track structure system has adjustable vibration-damping performance and is suitable for manual or automated special equipment laying. It is supported by adjustable temporary vertical support devices (support legs), which in turn contain factory-prepared high precision.
- the track plate is composited in a special way (can be compounded in the factory or composite on the construction site).
- the elastic cushion on the surface of the track plate, the temporary vertical support device with adjustable support height, the post-casting track plate fixed pile and the lower part of the track plate Self-compacting concrete or other hard-working backfill materials with good fluidity.
- the main construction process sequence of the new prefabricated plate vibration damping track is: production of prefabricated track plate structure at the factory or on site ⁇ composite damping cushion at the factory or in the field ⁇ high-precision positioning of the track plate with special paving equipment ⁇ using vertical support device Temporary fixing of the track plate ⁇ filling the concrete filling layer below the track plate once or several times.
- the surface of the rail plate is in the form of a horizontal plane or a herringbone slope.
- the section of the track plate is polygonal, and the sides of the circular tunnel are sloped to enhance the adaptability to the tunnel section.
- the section of the track section of the rectangular and horseshoe tunnel section can be a rectangular section or the same side of the circular tunnel section. It is in the form of a slope.
- the spacing of the steel bars in the board is arranged according to a certain modulus (such as 25mm, 50mm integral multiple) and shape, which realizes the automatic production of the steel mesh in the board.
- the vertical support can be mounted close to the board or to the side of the board.
- Pre-buried installation conditions for automatic measurement of the positioning mark It can be realized by pre-burying the casing in the plate or directly using a sleeve for mounting fasteners;
- Pre-embedded parts for pre-embedded elastic cushion composite connection may be bolt sleeves, fixed ends of expansion bolts, simple expansion bolts or even wooden pre-buried piles, etc., and the composite of the prefabricated panels and the elastic mats may be realized by means of reserved slots or pre-buried channels;
- the damping cushion layer is compounded on the bottom and side of the prefabricated track board to realize the integration of the board and the pad.
- the main points are:
- the damping cushion layer is made of elastic material, including vibration-damping film materials of different structures and configurations, polyurethane sheets and other similar materials with elasticity and vibration damping properties;
- the damping cushion layer can be laid in three ways: full paving at the bottom of the track plate, strip laying and point laying.
- the elastic cushion is a surface support
- the lower surface of the rail plate is laid on the entire upper surface of the elastic cushion.
- the elastic cushion layer comprises at least two parallel elastic support strips, and the lower surface of the rail plate is laid on the top surfaces of the two elastic support strips.
- the elastic cushion is a point support
- the plurality of spaced-apart rectangular, cylindrical, round or prismatic elastic cushion layers are arranged, and the lower surface of the rail plate is laid on the plurality of elastic point supports;
- connection between the damping cushion and the track plate adopts a unique connection method that does not affect the performance of the damping pad
- a special elastic sealing sleeve with a "cap” at the bottom is provided, and the bottom of the sealing sleeve is " The brim is effectively sealed to the underside of the damping pad.
- the sealing sleeve also has an isolation track plate and a positioning fixed pile to avoid direct hard contact, and allows the track plate to be freely deformed without being constrained by the positioning pile, so as to achieve elastic positioning of the track plate and avoid stress concentration, Ensure that the track plate is elastic without loss effect;
- the composite vibration-damping cushion layer at the bottom of the track plate is integrally formed with the plate end and the plate side, and the vibration-damping cushion layer is formed into a sleeve (package) type, and the bottom and the side of the vibration damping pad are integrated.
- the main function of the side cushion is to realize the elastic isolation between the rail plate and the surrounding concrete to avoid the concrete pouring into the joint layer between the vibration damping pad and the track plate during construction, and to ensure that the track plate can be freely deformed up and down without being restrained, avoiding Vibration damping "short circuit" occurs.
- the main function of the bottom cushion is to provide the elasticity of the track panel to achieve the vibration damping function of the track structure system;
- sealing measures can be set to prevent dust, dirt or groundwater from entering the bonding layer during construction and operation.
- the fine tuning trolley can adjust the multi-degree of freedom (longitudinal, lateral, rotary and elevation) of the track plate placed on it according to the adjustment command to complete the fine adjustment of the track plate.
- the adjustment board control system directs the total station to automatically measure the measurement marks placed on the track board; according to the measurement results, calculate the position of the track board, the space attitude and the deviation from the design position; issue the adjustment board command to the fine tuning trolley Fine-tuning the trolley to complete the adjustment action and repeat the above procedure as needed until the track plate is in place.
- the vertical support device of the track plate with adjustable height is used to support and fix the space plate of the finely adjusted track plate.
- Each track plate is provided with a plurality of support points as needed, and the vertical support device may be disposed in the plate or on the side of the plate.
- the vertical support unit is designed for detachable and reusable use. The vertical support device should ensure that the track plate is always absolutely stable, so that the positional accuracy of the track plate always meets the fine adjustment error requirements when filling the layer under the subsequent filling plate.
- the vertical supporting device is taken out, and the movable ball head pad at the bottom is automatically separated from the supporting device and left in the concrete.
- the portion of the support structure located in the concrete is in the form of a cone and is provided with a central vent.
- the rails are used to transport the rails to the working surface, and the rails are unloaded to the installation points by the transporter.
- the rails are manually moved into the rail-laying rails, and the gauge blocks, connecting bolts and spring bars are installed.
- the prefabricated plate type vibration damper track structure system and the supporting construction method of the invention adopt the prefabricated track plate and the vibration damping cushion layer, so that the track structure system has the vibration damping function, and the rail transit can be well solved.
- the hoisting, laying and precise positioning of the board are realized by the track-laying equipment such as the transporter, the hoisting cart and the fine-tuning trolley, which solves the problem of rapid and high-precision construction and the replacement of the track board and the elastic cushion in the later stage.
- the utility model has the advantages of simple construction process, fast construction speed, high construction precision, good track smoothness and low labor intensity.
- Figure 1 is a schematic view showing the structure of a prefabricated vibration-damping track structure system of the present invention.
- Figure 2 shows a top view of the face support of the present invention
- Figure 3 shows a top view of the point support of the present invention
- Figure 4 shows a top view of the strip support of the present invention
- Figure 5 is a schematic view showing the state in which the board of the present invention is adjusted in position and the board is fixed by the adjusting rod.
- Figure 6 is a schematic view showing the structure of the transporter of the present invention.
- Figure 7 shows the structure of the trolley of the present invention.
- Figure 8 is a schematic view showing the structure of the trolley with fine adjustment function of the present invention.
- Figure 9 is a schematic view showing the structure of the fine tuning trolley of the present invention.
- the present invention relates to a prefabricated vibration-damping rail structure system which is a multi-layer design comprising a filling layer 1, an elastic cushion layer 4 and a rail plate 6 in order from bottom to top.
- the filling layer 1 is the bottom layer, and the elastic cushion layer 4 is laid on the filling layer 1.
- the filling layer is made of self-compacting concrete, thereby providing good fluidity during perfusion and providing good performance. Support effect.
- the end of the elastic cushion layer 4 is a sealing material (polyamide)
- a material such as an ester caulk is 15 to ensure that dust, debris, water, and the like do not enter the gap between the elastic underlayer 4 and the rail 6 or the elastic mat layer 4 and the packed bed 1.
- the elastic cushion layer 4 is disposed on the filling layer 1 to provide elastic cushioning of the filling layer 1 to avoid rapid damage thereof.
- the elastic cushion layer 4 is made of an elastic material such as rubber or polyurethane. Provides good vibration damping.
- the rail plate 6 is disposed on the elastic cushion layer 4 for vibration damping.
- the rail plate 6 is provided with two parallel rails 7 respectively, and the rails 7 are respectively fixed to the rail plate 6 by a plurality of fasteners 5.
- the elastic cushion layer 4 may be in the form of a face support (see FIG. 2), a point support (see FIG. 3), and a strip support (see FIG. 4).
- the lower surface of the track plate 6 is laid flat over the entire upper surface of the elastic pad layer 4, and the elastic pad layer 4 is integrally covered on the bottom of the track plate 6 and the side portions on both sides.
- the elastic cushion layer 4 includes a plurality of rectangular parallelepiped, cylindrical, round or prismatic elastic cushion layers 4, and the lower surface of the rail plate 6 is laid on the plurality of Above the elastic cushion.
- the elastic cushion layer 4 comprises at least two parallel elastic support strips, and the lower surface of the rail plate 6 is laid on the top surfaces of the two elastic support strips.
- the rail plate 6 has a symmetrical polygonal shape and a sloped structure on both sides to enhance the adaptability to the tunnel section.
- the upper surface of the track plate 6 is a horizontal plane or has a slope, and the upper surface thereof may have a convex surface.
- the surface of the boss is a horizontal plane or a slope.
- the upper surface of the track plate 6 is provided with four lifting points for lifting and laying, the markings 14 for centering, the reserved holes 12 for fixing the adjusting plates, and the holes for mounting the prisms. It is also possible to pre-embed nylon sleeves in the board.
- the two sides of the rail plate 6 can be provided with longitudinal connecting devices 10, so that the rail plates 6 are connected by the longitudinal connecting device 10, and the mutual displacement between the plates is better avoided, wherein the longitudinal connection
- the device 10 can include a plurality of mounting holes in the rail plate 6 and a connecting strip secured to the mounting holes by bolts to provide a longitudinal connection between the two prefabricated panels.
- two holes 2 are disposed in the middle of the track plate 6, and the holes 2 penetrate the track plate 6 and the elastic cushion layer 4, and after filling the filling layer through the holes 2, the limit piles of the plate are formed.
- the sealing hole 3 is installed in the hole 2, and the sealing sleeve is a cylindrical structure made of an elastic material, which ensures that when the filling layer is concerned from the hole, the filling material is prevented from entering between the plate and the elastic cushion layer, resulting in The vibration is invalid. At the same time, a buffering effect is formed between the plate and the limit pile.
- the track plate 6 is factory-produced, and the elastic cushion layer and the track plate are integrated into one in the factory (in an exceptional case, the elastic cushion layer can also be laid on the site), and after being transported to the site by the transport plate, the fine adjustment is adopted. After the platform truck is paved and fine-tuned, the adjustment rod 14 is used to fix the board, and the filling layer is filled and a seamless line is laid.
- the two sides of the track plate 6 may be provided with a drainage ditch 8, and the lower part of the elastic pad layer 4 may be provided with a water ditch (the drainage ditch 8 may not be provided) or no ditch.
- the composite method of the track-damping structure comprises:
- Step 1 Prefabrication of the track board
- the steel bar binding in the track plate and the concrete pouring of the track plate are completed, and the track plate is maintained after the prefabrication is completed, and the maintenance measures such as covering, water storage, film moisturizing, spraying or painting curing agent can be adopted.
- the bottom surface, the inclined surface and the side surface of the track plate are covered with a vibration damping pad, and the vibration damping pad is integrally formed on the plate end, the lower plate and the plate side, thereby avoiding cutting and secondary connection.
- the composite of the damping cushion and the track plate uses a unique composite method that does not affect the performance of the damping pad.
- the supporting construction method of the invention mainly comprises the following steps:
- Step 1 Transportation of the track board
- the track board is transported to the working place by a special transporter.
- the track board is mounted on the transporter.
- the transporter is designed with a self-locking device.
- the self-locking device automatically fixes the track plate and automatically aligns the center of the track plate with the center of the vehicle floor. , to control the position of the track plate during transportation.
- the transporter runs to the work surface, and the associated unloading mechanism automatically unloads the track panel to the work surface.
- the tunnel inner transporter adopts a trackless transport mode.
- the tunnel inner transporter includes a vehicle body 16 carrying a plurality of track panels and a plurality of running portions 18 at a lower end of the vehicle body, and is also provided at one end of the transport panel.
- a belt conveyor 17 capable of lowering the track plate, and an automatic unloading mechanism 19, wherein the tunnel inner truck is also provided with a driver control room in front and rear, and the tunnel inner transport truck can also be based on the tunnel structure section.
- the different adjustment of the running mechanism to adapt to the travel requirements of different structural forms planar foundation and curved foundation can be).
- Step 2 lifting of the track board
- the special trolley can hoist the track plate placed on the working surface and run on the circular shield wall in the tunnel. It can also be operated on a horizontal plane to adapt to various types of structural planes (ie, plane foundation and curved foundation). Can be).
- the trolley is provided with a frame structure 20, a running mechanism 21 that can travel on a curved surface and a plane, controls the hoisting mechanism 22 on the upper and lower sides of the track, and also includes a control system 23, a hydraulic system 25, and positioning. System 24, etc.
- Step 3 fine adjustment of the track board
- the utility model mainly comprises: a frame structure 20 and a front and rear running gear 21 .
- the frame structure 20 is provided with an adjustment cylinder 22 , and the adjustment cylinder 22 can include two longitudinal adjustment cylinders and two lateral adjustment cylinders, respectively.
- the track plate is adjusted by an adjusting rod connected to the track plate, and the feedback data of the measuring device can be fed to the static trolley control system, and the adjusting plate can automatically complete the elevation of the track plate, the center line positioning and the ultra-high adjustment, so that the track board
- the position reaches the precision of the fine adjustment requirement; the running mechanism 21 adopts the precision control system 23, and feeds back to the hydraulic system 25 through the measurement of the total station, and the positioning system 24 is measured by the total station to realize the precise positioning of the trolley and complete the track.
- the fine tuning of the board After the fine adjustment is completed, the rail plate support frame 13 is installed on the track plate, and the position of the track plate is fixed to ensure that the position
- the track plate is fine-tuned and positioned by the fine-tuning trolley.
- the fine tuning trolley includes: a tractor 27, a fine adjustment frame 26, a rotating tray 29, vertical and horizontal guide rails 28 and 30, a height adjustment cylinder 31, and the like.
- the automatic adjustment of the attitude of the track plate is realized by measuring the feedback data of the equipment to the static control trolley control system. After the core rotating tray 29 is rotated to make the axis of the track plate parallel to the center line of the line, the degree of freedom of rotation is locked.
- the longitudinal position 28 and the lateral guide 30 are used to adjust the position of the moving disk in the line direction and perpendicular to the line direction, and the projection position (horizontal position) of the track plate on the moving disk is adjusted to the position.
- the elevation of the track plate is adjusted by a vertical adjustment jack 31 provided on the moving mechanism.
- the position of the track plate is adjusted to the precision required.
- the rail plate support frame 13 is installed on the track plate, and the position of the track plate is fixed to ensure that the positional accuracy of the track plate always satisfies the error requirement when the lower layer is filled.
- Step 2 Concrete infusion
- Concrete infusion can be carried out after checking the composite condition of the damping pad and the track plate and the sealing condition around the damping pad.
- the lower filling layer of the track plate is made of self-compacting concrete material.
- the self-compacting concrete pouring adopts the method of on-site mixing.
- the self-compacting concrete should be packed in bags. After being transported to the site, the mixing of the concrete is completed by mixing equipment. After the mixing is uniform, the self-contained conveying pipeline is used to infuse through the reserved pouring holes (and the limit bosses) in the track plate. .
- a small vibrator in order to achieve smooth surface and increase compactness when self-compacting concrete is poured, a small vibrator can be inserted to assist the vibrating.
- the concrete settles due to bubble overflow during the static stop, and the perfusion is replenished to the specified elevation before the concrete is initially set.
- the filling layer can be poured into the position twice, the first time to the plate. 50mm above the bottom, after the concrete is finally set, it is further infused.
- the installation of the buckle parts on the rail plate is carried out, and the buckle parts are transported to the working surface by the rail plate transporter, and the installation order is the rubber pad under the plate ⁇ the iron pad plate ⁇ the rubber pad under the rail.
- Step 4 Rail laying
- the rails are transported to the working surface by the rail-board transporter, and the rails are unloaded to the installation points by the transporter.
- the rails are manually moved into the rail-laying rails, and the gauge blocks, connecting bolts and spring bars are installed. After the solder connection.
- the structural form can better adapt to the size of the subway shield tunnel and greatly reduce the impact of civil construction errors on the track laying.
- the prefabricated plate structure is adopted to improve the laying schedule and construction quality, enhance the reliability of the track structure system, and the appearance is more beautiful.
- the prefabricated board and the elastic cushion factory are combined to realize the protection of the board during lifting and upper load bearing, and the construction progress is improved by eliminating the link of laying the elastic pad on site.
- the board adopts various measures such as reserved lifting points, alignment mark, adjusting rod mounting hole, measuring prism mounting hole, etc., which realizes the rapid and accurate construction of the track plate and improves the replacement of the vibration-damping track structure system. Sex.
- the paving construction is carried out by using the self-developed fine tuning trolley system.
- the construction process is simple, the construction progress is greatly accelerated, the laying precision is high, and the labor intensity is greatly reduced.
- the supporting construction method of the plate type track damper structure machine of the invention can be used in the field of rail transit, and the vibration damping performance can be designed according to the requirements, and the construction process is simple, the construction speed is fast, the construction precision is high, and the track smoothness is adopted. Good, low labor intensity, etc., in line with the current rail transit environmental protection, high efficiency and disease reduction direction, social benefits, it can effectively reduce the vibration and secondary structure noise caused by urban rail transit vehicles.
Abstract
Description
Claims (16)
- 一种预制板式减振轨道结构系统,其特征在于:所述预制减振轨道结构系统从下至上依次包含填充层、弹性垫层和轨道板,弹性垫层铺设于填充层上,该填充层由自密实混凝土等流动性较好的混凝土材料制成,从而在灌注时提供很好的流动性,并能提供很好的支撑效果,弹性垫层与预制板复合成一体,该轨道板设置于弹性垫层上以进行减振,所述轨道板上设有并行的两条钢轨,各钢轨分别通过多个扣件固定于该轨道板上。
- 如权利要求1所述的减振轨道结构系统,其特征在于:所述弹性垫层为面支撑或点支撑或条带支撑,在面支撑中,轨道板的下表面平铺于弹性垫层的整个上表面,在点支撑中,所述弹性垫层包含多个间隔排列的长方体、圆柱、圆台或棱台型弹性垫层,所述轨道板的下表面铺设于所述多个弹性垫层之上,在条带支撑中,所述弹性垫层包含至少两条并行的弹性支撑条,所述轨道板的下表面铺设于两条弹性支撑条的顶面上。
- 如权利要求1所述的减振轨道结构系统,其特征在于:轨道板上表面为水平面或人字斜坡面,轨道板断面为多边形,圆形隧道地段两侧为斜面结构以增强对隧道断面的适应性。
- 如权利要求1所述的减振轨道结构系统,其特征在于:轨道板上有贯穿轨道板厚度方向的1-3个孔洞以用于板下填充层的浇筑、固定桩的位置预留、板下填充层浇筑情况的观察。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板设有安装临时定位的支撑腿的预留安装结构,所述支撑腿通过在板 内或板侧面的安装套筒装置和支撑腿上自带螺纹通过与套筒内的螺纹咬合固定及调整。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板上有自动测量定位标志预埋结构,所述标志预埋结构包含板内的预埋套管或安装扣件用套管。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板上有为铺板定位设置的对中标记。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板上有预埋起吊用的3-4个专用吊钉。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板端部设置纵向连接用的预埋件。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板安装接触轨用的预埋部件。
- 如权利要求1所述的减振轨道结构系统,其特征在于:板内钢筋间距按一定模数布置,便于钢筋网的自动化生产。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:弹性垫层设有复合连接用的预埋件,预埋件是螺栓套筒、膨胀螺栓固定端、简易胀栓或木质预埋桩,还能通过预留槽或预埋槽道等方式实现预制板与弹性垫的复合。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:减振垫层与轨道板的连接采用特有的不影响减振垫性能发挥的连接方法。
- 如权利要求1中所述的减振轨道结构系统,其特征在于:轨道板底部复合减振垫层与侧面垫层可采用分离或一体化、不等刚度设计。
- 如权利要求1-14中任一所述的预制板式减振轨道结构系统的配套施工工法,包含如下步骤:步骤一:轨道板的运输及铺设;步骤二:混凝土灌注;清理隧道基础积水,并且检查减振垫和轨道板复合情况及减振垫四周密封状况后可进行混凝土施工;轨道板下部混凝土采用自密实混凝土等流动性好的混凝土材料;步骤三:混凝土养生;步骤四:扣配件铺设;步骤五:钢轨铺设。
- 如权利要求6所述的配套施工工法,其特征在于步骤一中包含:1)运板车将板运至现场,运板车还可根据隧道结构断面的不同调整走行机构,以适应不同结构形式的走行需求;2)专用吊运车将放置在作业面上轨道板吊起,并在隧道内圆形盾构壁上运行,也能在水平面上运行,以适应各种不同类型的结构面;3)轨道板的精调有两种方式,即在专用的精调台车或带精调功能的吊运车上进行,根据调板指令将放置于其上的轨道板进行多自由度(纵向、横向、旋转及高程等)的调整,完成轨道板精调定位,包 括:调板控制系统指挥全站仪对置于轨道板上的测量标志进行自动测量;根据测量结果计算轨道板的位置、空间姿态及与设计位置的偏差;向精调机构发出调板指令;精调机构完成调整动作,并根据需要重复上述程序,直至轨道板调整到位;4)精调完成后,采用可调的支撑腿固定精调后的预制板,支撑腿可安装在靠近板中或者板侧面的位置,支撑腿应能确保轨道板始终保持绝对稳定,以便轨道板位置精度在后续灌注板下填充层时始终满足精调的误差要求。
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CN105625104A (zh) | 2016-06-01 |
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