CN204663535U - City underground π type twin shafts and two transverse passage-way layout system - Google Patents
City underground π type twin shafts and two transverse passage-way layout system Download PDFInfo
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- CN204663535U CN204663535U CN201520278932.2U CN201520278932U CN204663535U CN 204663535 U CN204663535 U CN 204663535U CN 201520278932 U CN201520278932 U CN 201520278932U CN 204663535 U CN204663535 U CN 204663535U
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Abstract
本实用新型公开了一种城市地铁π型双竖井与双横通道平面布置系统,包括隧道中线(1),其特征是:还包括一座竖井(2)和两条横通道(3);所述竖井(2)暗挖于隧道中线(1)一侧;所述横通道(2)分别通过弧形过渡段(3)与竖井(1)连通,横通道(2)中部呈一定角度与隧道中线(1)相交。本实用新型结构安全稳定,能同时满足暗挖及盾构施工,互不影响。竖井与π型设置的双横通道实现了在狭小范围内暗挖与盾构的平行施工,提高了施工进度、施工效率,节约了成本,为以后地铁竖井及横通道设计、施工提供了借鉴。
The utility model discloses a plane layout system of π-shaped double vertical shafts and double horizontal passages of an urban subway, which comprises a tunnel center line (1), and is characterized in that it also includes a vertical shaft (2) and two horizontal passages (3); The vertical shaft (2) is dug underground on the side of the tunnel centerline (1); the horizontal passages (2) communicate with the vertical shaft (1) through arc-shaped transition sections (3) respectively, and the middle part of the horizontal passageway (2) forms a certain angle with the tunnel centerline (1) Intersect. The structure of the utility model is safe and stable, and can meet the needs of underground excavation and shield tunneling at the same time without affecting each other. The vertical shaft and the π-shaped double cross passage realize the parallel construction of underground excavation and shield tunneling in a narrow area, which improves the construction progress, construction efficiency, and saves costs, and provides a reference for the design and construction of subway shafts and cross passages in the future.
Description
技术领域technical field
本实用新型涉及地铁施工领域,特别是涉及一种城市地铁π型双竖井与双横通道平面布置系统。The utility model relates to the field of subway construction, in particular to an urban subway π-shaped double vertical shaft and double horizontal passage plane layout system.
背景技术Background technique
当前形势下,国内地铁建设飞速发展,但是由于地铁建设地处于城区,不同于其他铁路、公路的建设,施工场地范围小且不得影响交通一直以来是地铁建设需要克服的难题,并且将盾构机这样的大型设备广泛应用于地铁建设。对解决此类问题更是难上加难,尤其是盾构区间两端车站无法满足盾构机始发或接收条件时,这些问题显得尤为突出。Under the current situation, domestic subway construction is developing rapidly. However, since the subway construction site is located in an urban area, it is different from other railway and highway constructions. The construction site is small and must not affect traffic. It has always been a problem that subway construction needs to overcome. Such large-scale equipment is widely used in subway construction. It is even more difficult to solve such problems, especially when the stations at both ends of the shield tunneling section cannot meet the starting or receiving conditions of the shield machine, these problems are particularly prominent.
地铁建设大多处于城区,受施工场地范围小、车站的开挖形式等因素的影响,制约了地铁施工进度。为加快地铁车站之间的区间施工进度,一般在区间线路附近设置竖井,并通过横通道与正线线路连接,以满足施工开挖、出土、设备吊进或吊出及材料运输等的施工空间要求。如图1所示,其传统的平面布置一般为竖井位于线路一侧,横通道轴线与线路方向正交的形式:该布置形式为地铁区间增加了工作面,一定程度上避免了影响交通,也加快了地铁建设,但机械化施工程度仍然低下,尤其是用盾构法施工时,其出土效率受到严重的制约。Most of the subway constructions are located in urban areas, and the construction progress of the subway is restricted due to factors such as the small construction site and the excavation form of the station. In order to speed up the construction progress of the sections between subway stations, vertical shafts are generally set up near the section lines and connected to the main line through horizontal passages to meet the construction space for construction excavation, excavation, equipment hoisting in or out, and material transportation. Require. As shown in Figure 1, its traditional plane layout is generally in the form that the shaft is located on one side of the line, and the axis of the cross passage is orthogonal to the line direction: this layout increases the working surface for the subway section, avoids affecting traffic to a certain extent, and also The construction of the subway has been accelerated, but the degree of mechanized construction is still low, especially when the shield tunneling method is used for construction, its excavation efficiency is severely restricted.
实用新型内容Utility model content
本实用新型所要解决的技术问题是:提供一种城市地铁π型双竖井与双横通道平面布置系统,能够在不影响交通的情况下的小范围空间内满足盾构机的始发和接收要求。The technical problem to be solved by the utility model is: to provide a planar layout system of π-shaped double shafts and double horizontal passages of the urban subway, which can meet the starting and receiving requirements of the shield machine in a small space without affecting the traffic .
本实用新型所要解决的技术问题是通过以下技术方案实现的:The technical problem to be solved by the utility model is achieved through the following technical solutions:
一种城市地铁π型双竖井与双横通道平面布置系统,包括隧道中线,其特征是:还包括一座竖井和两条横通道;所述竖井暗挖于隧道中线一侧竖井中间位置设置有一道中隔墙,下部相通;所述竖井两侧分别通过弧形过渡段与横通道连通,横通道中部呈一定角度与隧道中线相交。经空间模拟,设计规定横通道与正线隧道呈45°角斜交,这一角度的设定主要满足通过横通道进入正线隧道时盾构机转体作业对空间的要求。An urban subway π-shaped double-shaft and double-transverse channel plane layout system, including the tunnel center line, is characterized in that: it also includes a vertical shaft and two horizontal channels; The partition wall communicates with the lower part; the two sides of the shaft respectively communicate with the transverse channel through arc-shaped transition sections, and the middle part of the transverse channel intersects with the center line of the tunnel at a certain angle. Through space simulation, the design stipulates that the transverse aisle and the main line tunnel are obliquely intersected at an angle of 45°. The setting of this angle mainly meets the space requirements for the shield machine's rotating operation when entering the main line tunnel through the transverse aisle.
所述平面布置系统整体呈π型,一座竖井设置于隧道中线一侧,两条横通道对称的设于竖井两侧。The overall layout of the system is π-shaped. A vertical shaft is arranged on one side of the tunnel center line, and two horizontal passages are symmetrically arranged on both sides of the vertical shaft.
所述隧道中线包括两条平行的隧道线路,同侧的横通道与两条隧道中线以相同角度相交并在横通道末端作封闭处理。The tunnel center line includes two parallel tunnel lines, and the same side of the cross channel intersects the two tunnel center lines at the same angle and is closed at the end of the cross channel.
所述竖井为长方形,四角设置钢筋混凝土斜拖,加强转角处受力,所述竖井中间通过中隔墙分割成两框体,所述两框体下部相通;所述竖井沿纵向分为五层,层间采用交圈环梁分割。The shaft is rectangular, with reinforced concrete slanting drags at the four corners to strengthen the stress at the corners. The middle of the shaft is divided into two frames by a partition wall, and the lower parts of the two frames are connected; the shaft is divided into five layers along the longitudinal direction. , and the layers are divided by intersecting ring beams.
所述横通道与隧道中线的交叉口断面正线开洞处周边设置有加强环梁。A reinforcing ring beam is arranged around the opening on the main line of the cross section of the intersection between the cross passage and the center line of the tunnel.
所述隧道中线分为上下两条,每条隧道中线又分为中部的标准段和暗挖段,所述隧道中线左侧还设有扩大段。The tunnel center line is divided into upper and lower two, and each tunnel center line is further divided into a standard section and an excavation section in the middle, and an enlarged section is provided on the left side of the tunnel center line.
本实用新型采用上述技术方案所具有的技术效果是:The technical effect that the utility model adopts above-mentioned technical scheme to have is:
本实用新型结构安全稳定,能同时满足暗挖及盾构施工,互不影响。竖井与π型分布的双横通道实现了在狭小范围内暗挖与盾构的平行施工,提高了施工进度、施工效率,节约了成本,为以后地铁竖井及横通道设计、施工提供了借鉴。The structure of the utility model is safe and stable, and can simultaneously satisfy underground excavation and shield construction without affecting each other. The vertical shaft and π-shaped distribution of double horizontal passages realize the parallel construction of underground excavation and shield tunneling in a narrow area, which improves the construction progress, construction efficiency, and saves costs, and provides a reference for the design and construction of subway vertical shafts and horizontal passages in the future.
附图说明Description of drawings
下面结合附图对本实用新型作进一步说明Below in conjunction with accompanying drawing, the utility model will be further described
图1为常规竖井横通道与线路正交平面布置图Fig. 1 is the orthogonal plan layout of the horizontal channel and the line in the conventional shaft
图2为本实用新型平面布置图Fig. 2 is the layout plan of the utility model
图3为竖井纵剖图Figure 3 is a longitudinal section of the shaft
图4为双竖井平面图Figure 4 is the plan view of the double shaft
其中,1-隧道中线,2-竖井,3-横通道,4-过渡段,5-中隔墙,6-标准段,7-暗挖段,8-扩大段Among them, 1-tunnel centerline, 2-shaft, 3-transverse passage, 4-transition section, 5-intermediate partition wall, 6-standard section, 7-underground excavation section, 8-expansion section
具体实施方式Detailed ways
如图2所示的一种城市地铁π型双竖井与双横通道平面布置系统,包括隧道中线1,其特征是:还包括一座竖井2和两条横通道3;所述竖井2明挖于隧道中线1一侧;竖井1两侧分别通过弧形过渡段4与横通道3连通,横通道3中部呈一定角度与隧道中线1相交。该平面布置系统综合考虑了横通道3设置需满足盾构始发及暗挖平行施工的功能要求,在竖井2两侧各设置一个横通道3,两个横通道3分别与正线隧道斜交呈π型,在横通道3砌施工完成后,可以进行正线隧道施工。A kind of city subway π-type double vertical shaft and double cross passage plane layout system as shown in Figure 2, comprises tunnel centerline 1, is characterized in that: also comprises a vertical shaft 2 and two cross passages 3; One side of the tunnel center line 1; both sides of the shaft 1 are respectively connected with the transverse channel 3 through the arc-shaped transition section 4, and the middle part of the transverse channel 3 intersects with the tunnel center line 1 at a certain angle. The plan layout system takes into account that the setting of the cross passage 3 must meet the functional requirements of shield tunneling and underground excavation parallel construction. One cross passage 3 is set on each side of the shaft 2, and the two cross passages 3 are obliquely intersected with the main line tunnel respectively. It is π-shaped, and after the completion of the construction of the horizontal passage 3, the construction of the main line tunnel can be carried out.
平面布置系统整体呈π型,一座竖井2紧靠与隧道中线1一侧,两条横通道3对称的设于竖井2两侧,竖井与π型设置的双横通道实现了在狭小范围内暗挖与盾构的平行施工,提高了施工进度。The overall layout system is π-shaped. A vertical shaft 2 is close to the side of the tunnel center line 1, and two horizontal passages 3 are symmetrically arranged on both sides of the vertical shaft 2. The parallel construction of digging and shield tunneling improves the construction progress.
隧道中线1包括两条平行的隧道线路,同侧的横通道3与两条隧道中线1以相同角度相交并在横通道3末端作封闭处理。横通道设计需满足以下几个方面的要求:1)满足盾构始发的运输要求;2)可以作为暗挖段的作业面;3)具备竖井横通道施工的可操作性及工期要求。The tunnel centerline 1 includes two parallel tunnel lines, and the cross passage 3 on the same side intersects the two tunnel centerlines 1 at the same angle and is closed at the end of the cross passage 3 . The design of the cross passage needs to meet the requirements of the following aspects: 1) meet the transportation requirements for shield tunneling; 2) can be used as the working face of the underground excavation section; 3) meet the operability and construction period requirements of the vertical shaft cross passage construction.
作为暗挖段施工竖井又做为盾构始发井,暗挖施工周期较长,在后期与盾构存在交叉施工作业,竖井的主要作用:1)满足暗挖与盾构同时平行作业,互不干扰;2)作为盾构始发过程中的运输通道(运输管片和砂浆);3)后期兼做联络通道及泵房。如图3和图4所示的本实用新型的竖井2为长方形,四角设置钢筋混凝土斜拖,加强转角处受力,所述竖井2沿纵向分为五层,层间采用交圈环梁分割,根据地层变化对竖井结构影响的不同,设计层高从上向下分别为4.82m、4.5m、5.51m、9.39m、1.75m。根据盾构始发吊装和竖井提升系统所需作业空间及暗挖施工的要求所设置的竖井可以保证机械设备的利用率、节约成本、方便施工。As the construction shaft of the underground excavation section is also used as the originating shaft of the shield machine, the construction period of the underground excavation is long, and there will be cross-construction operations with the shield machine in the later stage. No interference; 2) As a transportation channel (transport segment and mortar) in the process of shield tunneling; 3) In the later stage, it will also be used as a communication channel and a pump room. As shown in Fig. 3 and Fig. 4, the vertical shaft 2 of the present utility model is rectangular, and reinforced concrete oblique drags are arranged at the four corners to strengthen the stress at the corners. , according to the impact of stratum changes on the shaft structure, the design storey heights are 4.82m, 4.5m, 5.51m, 9.39m, and 1.75m from top to bottom. The shafts set up according to the working space required by the shield starting hoisting and shaft hoisting system and the requirements of underground excavation construction can ensure the utilization rate of mechanical equipment, save costs and facilitate construction.
本实用新型的平面布置系统需要在结构设计上进一步优化:包括在横通道交叉口断面采用CRD工法施工,对横通道3与隧道中线1的交叉口断面正线开洞处周边设置加强环梁;同时,按要求在交叉口断面衬砌结束后进行隧道正线开挖施工等措施保证隧道施工安全。The layout system of the utility model needs to be further optimized in terms of structural design: including adopting the CRD construction method at the intersection section of the cross passage, and setting a strengthening ring beam around the opening of the main line of the intersection section of the cross passage 3 and the tunnel center line 1; At the same time, according to the requirements, measures such as excavation of the main line of the tunnel will be carried out after the lining of the intersection section is completed to ensure the safety of the tunnel construction.
本实用新型的施工方法是:首先进行竖井结构施工,之后进行1号、2号横通道施工,然后进行标准段、扩大段暗挖隧道施工,在扩大段暗挖隧道、两个横通道之间标准段暗挖隧道、2号横通道东侧50m隧道施工后,首先进行右线盾构机组装机掘进施工;右线隧道掘进100环后,进行左线盾构机组装机掘进施工。其中,两台盾构机均在竖井西口进行吊装入井,通过1号横通道,并在横通道与正线隧道交叉口处进行旋转后最终进入盾构扩大段隧道;吊装时首先把刀盘、前盾、中盾吊装入井放在平移托架上,拼装成一个整体后平移至扩大段隧道内,之后把尾盾吊装入竖井放在平移托架上平移至扩大段隧道内,最后把螺旋输送机吊运平移至扩大段隧道内,完成整个盾构的组装。The construction method of the utility model is as follows: first carry out shaft structure construction, then carry out No. 1 and No. 2 transverse channel construction, then carry out standard section and enlarged section underground excavation tunnel construction. After the underground excavation tunnel in the standard section and the 50m tunnel on the east side of the No. 2 cross passage, the tunneling construction of the shield machine assembly machine on the right line will be carried out first; Among them, the two shield machines are hoisted into the well at the west entrance of the shaft, pass through the No. 1 cross passage, and rotate at the intersection of the cross passage and the main line tunnel before finally entering the tunnel of the shield expansion section; when hoisting, the cutter head, The front shield and the middle shield are hoisted into the shaft and placed on the translation bracket, assembled into a whole and then translated into the enlarged tunnel, then the tail shield is hoisted into the vertical shaft and placed on the translation bracket to be translated into the enlarged tunnel, and finally the screw is conveyed The machine is hoisted and moved to the enlarged section of the tunnel to complete the assembly of the entire shield.
应当说明的是,本实用新型的上述具体实施方式仅用于示例性说明或解释本实用新型的原理,而不构成对本实用新型的限制。因此,在不偏离本实用新型的精神和范围的情况下所做的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。此外,本实用新型所附权利要求旨在涵盖落入所附权利要求范围和边界或者这种范围和边界的等同形式内的全部变化和修改。It should be noted that the above specific implementations of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims or equivalents of such scope and boundaries.
Claims (7)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104818994A (en) * | 2015-04-30 | 2015-08-05 | 中铁二十二局集团第一工程有限公司 | Urban subway n-shaped double-shaft and double transverse passage plane arrangement system |
CN106593454A (en) * | 2017-01-25 | 2017-04-26 | 北京市市政工程设计研究总院有限公司 | Shield side original tunneling construction method and structure combined with subsurface excavated construction of original well and hoisting well |
CN107905801A (en) * | 2017-12-19 | 2018-04-13 | 中冶京诚工程技术有限公司 | shield pipe gallery system and construction method thereof |
-
2015
- 2015-04-30 CN CN201520278932.2U patent/CN204663535U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104818994A (en) * | 2015-04-30 | 2015-08-05 | 中铁二十二局集团第一工程有限公司 | Urban subway n-shaped double-shaft and double transverse passage plane arrangement system |
CN106593454A (en) * | 2017-01-25 | 2017-04-26 | 北京市市政工程设计研究总院有限公司 | Shield side original tunneling construction method and structure combined with subsurface excavated construction of original well and hoisting well |
CN107905801A (en) * | 2017-12-19 | 2018-04-13 | 中冶京诚工程技术有限公司 | shield pipe gallery system and construction method thereof |
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