CN110630278A - Rectangular Shield Tunnel Lining Ring and Rectangular Shield Tunnel Lining Structure - Google Patents
Rectangular Shield Tunnel Lining Ring and Rectangular Shield Tunnel Lining Structure Download PDFInfo
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- CN110630278A CN110630278A CN201911035776.6A CN201911035776A CN110630278A CN 110630278 A CN110630278 A CN 110630278A CN 201911035776 A CN201911035776 A CN 201911035776A CN 110630278 A CN110630278 A CN 110630278A
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- 238000007726 management method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
本发明涉及一种矩形盾构隧道衬砌环，包括两个封顶管片和多个标准管片，每一标准管片所对应的两道纵缝中，其中一道纵缝与对应位置处的隧道纵向平行，另一道纵缝与对应位置处的隧道纵向具有夹角；两封顶管片的楔入方向相反并且二者之间有至少一块标准管片。另外还涉及一种矩形盾构隧道衬砌结构，包括多个上述矩形盾构隧道衬砌环。上述衬砌环采用两个封顶块，标准管片均为梯形管片，结构简单，能较好地适用于矩形盾构隧道的不同地段，只需采用一种衬砌环即可拟合矩形盾构隧道平面曲线。上述矩形盾构隧道衬砌结构，只采用一种衬砌环，管片制作简单，施工与管理方便；上述矩形盾构隧道衬砌结构减少了十字缝的数量，显著地提高了隧道防水性能。
The invention relates to a rectangular shield tunnel lining ring, which includes two capping segments and a plurality of standard segments, and among the two longitudinal slits corresponding to each standard segment, one of the longitudinal slits is aligned with the longitudinal direction of the tunnel at the corresponding position. Parallel, the other longitudinal seam has an included angle with the longitudinal direction of the tunnel at the corresponding position; the wedging direction of the two capping segments is opposite and there is at least one standard segment between them. In addition, it also relates to a rectangular shield tunnel lining structure, comprising a plurality of above-mentioned rectangular shield tunnel lining rings. The above-mentioned lining ring adopts two capping blocks, and the standard segments are all trapezoidal segments. The structure is simple and can be better applied to different sections of the rectangular shield tunnel. Only one lining ring can be used to fit the rectangular shield tunnel flat curve. The lining structure of the above-mentioned rectangular shield tunnel adopts only one lining ring, the segments are easy to manufacture, and the construction and management are convenient; the above-mentioned rectangular shield tunnel lining structure reduces the number of cross joints and significantly improves the waterproof performance of the tunnel.
Description
技术领域technical field
本发明属于隧道工程技术领域，具体涉及一种矩形盾构隧道衬砌环及采用该矩形盾构隧道衬砌环的矩形盾构隧道衬砌结构。The invention belongs to the technical field of tunnel engineering, and in particular relates to a rectangular shield tunnel lining ring and a rectangular shield tunnel lining structure using the rectangular shield tunnel lining ring.
背景技术Background technique
矩形盾构法隧道结构一般采用钢管片或钢-混凝土组合管片，接缝采用直螺栓连接。如图1，现有矩形盾构法隧道一般长度较短，且多位于直线上，因此普遍采用直线衬砌环201，通缝拼装。如图2，当隧道平面或纵断面既有直线又有曲线时，现有技术主要采用两种及以上的衬砌环进行解决，分别为直线,201、楔形环202(又可分为左转弯楔形环、右转弯楔形环)，通缝拼装；为拟合隧道平面曲线，采用连续布置楔形环202或采用“楔形环202+直线环201”组合布置的方式。The tunnel structure of the rectangular shield method generally adopts steel pipe segments or steel-concrete composite segments, and the joints are connected by straight bolts. As shown in Fig. 1, the existing rectangular shield tunnels are generally short in length and mostly located on a straight line, so a straight line lining ring 201 is generally used and assembled through joints. As shown in Figure 2, when the tunnel plane or longitudinal section has both straight lines and curves, the existing technology mainly uses two or more lining rings to solve the problem, which are straight line 201 and wedge ring 202 (which can also be divided into left-turn wedge-shaped ring, right-turn wedge ring), assembled through the joints; in order to fit the tunnel plane curve, the continuous arrangement of wedge rings 202 or the combined arrangement of "wedge ring 202 + straight line ring 201" is adopted.
该方式的主要优点是：每环管片的拼装位置固定，施工较为方便。The main advantage of this method is that the assembly position of each ring segment is fixed, and the construction is more convenient.
该方式的缺点是：The disadvantages of this method are:
1)需要多种衬砌环，增加了制作难度；1) A variety of lining rings are required, which increases the difficulty of production;
2)所有管片通缝拼装，防水性能差；2) All segments are assembled through seams, and the waterproof performance is poor;
3)由于施工中的掘进方向误差不可避免，因此难以预先知道所需要的直线环201、楔形环202的具体环数，给施工计划安排带来了困难。3) Due to the unavoidable error in the direction of excavation during construction, it is difficult to know in advance the specific number of required straight rings 201 and wedge-shaped rings 202, which brings difficulties to construction planning.
发明内容Contents of the invention
本发明涉及一种矩形盾构隧道衬砌环及采用该矩形盾构隧道衬砌环的矩形盾构隧道衬砌结构，至少可解决现有技术的部分缺陷。The invention relates to a rectangular shield tunnel lining ring and a rectangular shield tunnel lining structure using the rectangular shield tunnel lining ring, which can at least solve some defects in the prior art.
本发明涉及一种矩形盾构隧道衬砌环，包括两个封顶管片和多个标准管片，每一所述标准管片所对应的两道纵缝中，其中一道纵缝与对应位置处的隧道纵向平行，另一道纵缝与对应位置处的隧道纵向具有夹角；两封顶管片的楔入方向相反并且二者之间有至少一块所述标准管片。The invention relates to a rectangular shield tunnel lining ring, which includes two capping segments and a plurality of standard segments, and among the two longitudinal slits corresponding to each standard segment, one of the longitudinal slits is connected to the corresponding position. The longitudinal direction of the tunnel is parallel, and the other longitudinal seam has an included angle with the longitudinal direction of the tunnel at the corresponding position; the wedging direction of the two capping segments is opposite and there is at least one standard segment between them.
作为实施例之一，各管片相对于衬砌环的竖向对称平面镜像拼装。As one of the embodiments, each segment is assembled in mirror image relative to the vertical symmetry plane of the lining ring.
作为实施例之一，两所述封顶管片上下相对设置，每块封顶管片相对于衬砌环的竖向对称平面对称。As one of the embodiments, the two capping segments are set up and down opposite each other, and each capping segment is symmetrical with respect to the vertical symmetry plane of the lining ring.
作为实施例之一，所述标准管片为偶数个。As one of the embodiments, the standard segment is an even number.
本发明实施例还涉及一种矩形盾构隧道衬砌结构，包括多个如上所述的矩形盾构隧道衬砌环，各衬砌环沿隧道纵向依次拼接。The embodiment of the present invention also relates to a rectangular shield tunnel lining structure, comprising a plurality of rectangular shield tunnel lining rings as described above, and each lining ring is sequentially spliced along the longitudinal direction of the tunnel.
作为实施例之一，在隧道直线段，相邻两个矩形盾构隧道衬砌环的各封顶管片一一对应相抵，并且相抵的两个封顶管片的楔入方向相反。As one of the embodiments, in the straight section of the tunnel, the capping segments of two adjacent rectangular shield tunnel lining rings abut against each other one by one, and the wedging directions of the two abutting capping segments are opposite.
作为实施例之一，在隧道曲线段依次布置有多个同向衬砌环，相邻两个同向衬砌环的各封顶管片一一对应相抵并且相抵的两个封顶管片的楔入方向相同。As one of the embodiments, a plurality of lining rings in the same direction are arranged sequentially in the curved section of the tunnel, and the capping segments of two adjacent lining rings in the same direction are in one-to-one correspondence and the wedging directions of the two abutting capping segments are the same .
作为实施例之一，在隧道曲线段还布置有一个反向衬砌环，各同向衬砌环与该反向衬砌环依次拼装，该反向衬砌环与相邻的同向衬砌环的各封顶管片一一对应相抵并且相抵的两个封顶管片的楔入方向相反。As one of the embodiments, a reverse lining ring is also arranged in the curved section of the tunnel, and each same-direction lining ring is assembled with the reverse lining ring in sequence, and the reverse lining ring is connected with the capping pipes of the adjacent same-direction lining ring. The pieces are in one-to-one correspondence and the wedging directions of the two abutting capping segments are opposite.
本发明至少具有如下有益效果：The present invention has at least the following beneficial effects:
本发明提供的矩形盾构隧道衬砌环，采用两个封顶块，并且标准管片均为梯形管片，结构简单，能较好地适用于矩形盾构隧道的不同地段，从而只需采用一种衬砌环即可拟合矩形盾构隧道平面曲线。The rectangular shield tunnel lining ring provided by the present invention adopts two capping blocks, and the standard segments are all trapezoidal segments, which has a simple structure and can be better applied to different sections of the rectangular shield tunnel, so only one The lining ring can fit the plane curve of the rectangular shield tunnel.
本发明提供的矩形盾构隧道衬砌结构，只采用一种衬砌环，管片制作简单，施工与管理方便。本发明提供的矩形盾构隧道衬砌结构减少了十字缝的数量，显著地提高了隧道防水性能。The lining structure of the rectangular shield tunnel provided by the invention only adopts one lining ring, the segments are easy to manufacture, and the construction and management are convenient. The rectangular shield tunnel lining structure provided by the invention reduces the number of cross joints and significantly improves the waterproof performance of the tunnel.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为背景技术提供的现有矩形盾构隧道中直线衬砌环的拼装结构示意图；Fig. 1 is the schematic diagram of the assembly structure of the linear lining ring in the existing rectangular shield tunnel provided by the background technology;
图2为背景技术提供的现有矩形盾构隧道中楔形衬砌环的拼装结构示意图；Fig. 2 is a schematic diagram of the assembly structure of the wedge-shaped lining ring in the existing rectangular shield tunnel provided by the background technology;
图3为图2的展开结构示意图；Fig. 3 is a schematic diagram of the expanded structure of Fig. 2;
图4为本发明实施例提供的矩形盾构隧道衬砌环的结构示意图；Fig. 4 is a schematic structural view of a rectangular shield tunnel lining ring provided by an embodiment of the present invention;
图5为本发明实施例提供的矩形盾构隧道直线段的衬砌结构示意图；Fig. 5 is a schematic diagram of the lining structure of the straight section of the rectangular shield tunnel provided by the embodiment of the present invention;
图6为图5的展开结构示意图；Fig. 6 is a schematic diagram of the expanded structure of Fig. 5;
图7为本发明实施例提供的矩形盾构隧道曲线段的同向衬砌环拼装示意图；Fig. 7 is a schematic diagram of assembling the lining ring in the same direction of the curved section of the rectangular shield tunnel provided by the embodiment of the present invention;
图8为图7的展开结构示意图；Fig. 8 is a schematic diagram of the expanded structure of Fig. 7;
图9为本发明实施例提供的矩形盾构隧道曲线段的同向衬砌环与反向衬砌环的拼装示意图。Fig. 9 is a schematic diagram of the assembly of the same-direction lining ring and the reverse lining ring of the curved section of the rectangular shield tunnel provided by the embodiment of the present invention.
具体实施方式Detailed ways
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例一Embodiment one
本发明实施例提供一种矩形盾构隧道衬砌环1，其断面呈矩形或者说大致是呈矩形的，当然，常规地，其仍具有一定的弧度(例如四个角部呈圆角，拱顶和拱底具有一定的弧度等)，这是本领域的常规认知，并不以其字面的几何意义而限定其保护范围。The embodiment of the present invention provides a rectangular shield tunnel lining ring 1, the section of which is rectangular or roughly rectangular, of course, conventionally, it still has a certain radian (for example, the four corners are rounded, the vault and the arch bottom have a certain radian, etc.), which is a conventional cognition in the field, and does not limit its protection scope by its literal geometric meaning.
如图4-图9，该衬砌环1包括两个封顶管片11和多个标准管片12，每一所述标准管片12所对应的两道纵缝14中，其中一道纵缝14与对应位置处的隧道纵向/隧道纵轴线平行，另一道纵缝14与对应位置处的隧道纵向/隧道纵轴线具有夹角；两封顶管片11的楔入方向相反并且二者之间有至少一块所述标准管片12。As shown in Figures 4-9, the lining ring 1 includes two capping segments 11 and a plurality of standard segments 12, and among the two longitudinal slits 14 corresponding to each standard segment 12, one of the longitudinal slits 14 is connected to the The tunnel longitudinal/tunnel longitudinal axis at the corresponding position is parallel, and another longitudinal slit 14 has an included angle with the tunnel longitudinal/tunnel longitudinal axis at the corresponding position; the wedging direction of the two capping segments 11 is opposite and there is at least one The standard segment 12.
可以理解地，上述封顶管片11仍采用常规的楔形块结构，其可具有一定的弧度/拱起量，其展开为平面时的形状优选为是等腰梯形；对于上述的楔入方向，也即沿隧道纵向的插入方向。It can be understood that the above-mentioned capping segment 11 still adopts a conventional wedge-shaped block structure, which may have a certain amount of radian/arch, and its shape when unfolded into a plane is preferably an isosceles trapezoid; for the above-mentioned wedging direction, also That is, the insertion direction along the longitudinal direction of the tunnel.
上述标准管片12按所使用的位置而可设计为相应的形状，例如对于在角部位置处的标准管片12，其可以是大致呈L型的结构，可具有一定的弧度，其展开为平面时的形状优选为是直角梯形，相平行的顶边和底边对应为其两个环缝边部，直角侧边和斜边对应为其两个纵缝14边部。The above-mentioned standard segment 12 can be designed into a corresponding shape according to the position used, for example, for the standard segment 12 at the corner position, it can be roughly L-shaped structure, can have a certain radian, and it is expanded as The shape in the plane is preferably a right-angled trapezoid, with the parallel top and bottom corresponding to its two circular seams, and the right-angled sides and hypotenuses corresponding to its two longitudinal seams 14 sides.
基于上述衬砌环1的结构，可以实现矩形盾构隧道衬砌环1的镜像拼装，即各管片相对于衬砌环1的竖向对称平面镜像拼装，也即该衬砌环1竖向对称平面两侧的管片拼装结构相同。其中，优选地，封顶管片11在拱顶或拱底楔入，由于两个封顶管片11控制为不相邻，则优选为使两所述封顶管片11上下相对设置，每块封顶管片11相对于衬砌环1的竖向对称平面对称。Based on the structure of the above-mentioned lining ring 1, the mirror image assembly of the lining ring 1 of the rectangular shield tunnel can be realized, that is, the mirror assembly of each segment relative to the vertical symmetry plane of the lining ring 1, that is, the two sides of the vertical symmetry plane of the lining ring 1 The segment assembly structure is the same. Among them, preferably, the capping segment 11 is wedged at the top or the bottom of the vault. Since the two capping segments 11 are controlled to be non-adjacent, it is preferable to set the two capping segments 11 opposite up and down, and each capping tube The sheet 11 is symmetrical with respect to the vertical plane of symmetry of the lining ring 1 .
图4中示出了6分块的衬砌环1的优选应用实施例，即标准管片12为4个；但并不限于该分块方式，能够拼装拟合成所需的环形即可，其中，优选为标准管片12为偶数个。Figure 4 shows a preferred application embodiment of the 6-block lining ring 1, that is, there are 4 standard segments 12; but it is not limited to this block method, it can be assembled and fitted into the required ring, where , preferably the standard segment 12 is an even number.
实施例二Embodiment two
如图5-图9，本发明实施例提供一种矩形盾构隧道衬砌结构，包括多个上述实施例一所提供的矩形盾构隧道衬砌环1，各衬砌环1沿隧道纵向依次拼接。As shown in Figs. 5-9, an embodiment of the present invention provides a rectangular shield tunnel lining structure, which includes a plurality of rectangular shield tunnel lining rings 1 provided in Embodiment 1 above, and each lining ring 1 is sequentially spliced along the longitudinal direction of the tunnel.
其中，基于上述实施例一所提供的矩形盾构隧道衬砌环1的结构，衬砌环旋转方式由常规的“绕隧道纵轴线旋转”改为“绕隧道竖轴旋转”，通缝拼装。Wherein, based on the structure of the rectangular shield tunnel lining ring 1 provided in the first embodiment above, the rotation mode of the lining ring is changed from the conventional "rotation around the tunnel longitudinal axis" to "rotation around the tunnel vertical axis", and the joints are assembled.
从而，上述矩形盾构隧道衬砌结构仅需采用一种楔形环(即上述的矩形盾构隧道衬砌环1采用一定的楔形量)，即能拟合隧道平面曲线，具体地：Therefore, the above-mentioned rectangular shield tunnel lining structure only needs to adopt a wedge-shaped ring (that is, the above-mentioned rectangular shield tunnel lining ring 1 adopts a certain wedge shape), that is, it can fit the tunnel plane curve, specifically:
(1)如图5和图6，在隧道直线段，相邻两个矩形盾构隧道衬砌环1的各封顶管片11一一对应相抵，并且相抵的两个封顶管片11的楔入方向相反。即相邻两个衬砌环1互相绕隧道竖轴旋转180°，以拟合隧道直线纵轴线。(1) As shown in Fig. 5 and Fig. 6, in the straight section of the tunnel, the capping segments 11 of two adjacent rectangular shield tunnel lining rings 1 are offset one by one, and the wedging direction of the two offsetting capping segments 11 on the contrary. That is, two adjacent lining rings 1 are rotated 180° around the vertical axis of the tunnel to fit the straight longitudinal axis of the tunnel.
显然地，当矩形盾构隧道为全直线隧道时，上述衬砌环1也可取消楔形量设定。Obviously, when the rectangular shield tunnel is an all-straight tunnel, the above-mentioned lining ring 1 can also cancel the setting of the wedge amount.
(2)对于曲线地段：(2) For curved sections:
如图7和图8，当曲线半径与衬砌环1的楔形量匹配时，可全部采用同向楔形环拼装，即：在隧道曲线段依次布置有多个同向衬砌环101，相邻两个同向衬砌环101的各封顶管片11一一对应相抵并且相抵的两个封顶管片11的楔入方向相同。As shown in Figures 7 and 8, when the radius of the curve matches the wedge shape of the lining ring 1, all of them can be assembled with wedge rings in the same direction. The capping segments 11 of the lining ring 101 are in one-to-one correspondence and the wedging directions of the two abutting capping segments 11 are the same.
如图9(省略了其展开图)，当曲线半径与衬砌环1的楔形量不匹配时，可采用多个同向楔形环+1个绕隧道竖轴旋转180°的反向楔形环组合拼装，即：在隧道曲线段，除布置有多个同向衬砌环101外，还布置有一个反向衬砌环102，各同向衬砌环101与该反向衬砌环102依次拼装，该反向衬砌环102与相邻的同向衬砌环101的各封顶管片11一一对应相抵并且相抵的两个封顶管片11的楔入方向相反。As shown in Figure 9 (the expansion diagram is omitted), when the radius of the curve does not match the wedge shape of the lining ring 1, multiple wedge rings in the same direction + 1 reverse wedge ring rotated 180° around the vertical axis of the tunnel can be used to assemble , that is: in the curved section of the tunnel, in addition to a plurality of lining rings 101 in the same direction, there is also a reverse lining ring 102. The ring 102 abuts against the capping segments 11 of the adjacent co-directional lining ring 101 in a one-to-one correspondence, and the wedging directions of the two abutting capping segments 11 are opposite.
上述矩形盾构隧道衬砌结构的施工过程大致如下：The construction process of the above-mentioned rectangular shield tunnel lining structure is roughly as follows:
(1)根据矩形盾构隧道的平面(或纵断面)设计参数，确定衬砌环1的环宽与楔形量；(1) Determine the ring width and wedge shape of the lining ring 1 according to the plane (or longitudinal section) design parameters of the rectangular shield tunnel;
(2)根据矩形盾构隧道的结构断面，划分衬砌环分块并编号13；(2) According to the structural section of the rectangular shield tunnel, the lining ring is divided into blocks and numbered 13;
(3)确定两个封顶管片11的位置，且两个封顶管片11不相邻；(3) Determine the positions of the two capping segments 11, and the two capping segments 11 are not adjacent;
(4)确定除封顶管片11以外的其余管片(即标准管片12)的形状。(4) Determine the shapes of the remaining segments except the capping segment 11 (ie, the standard segment 12 ).
(5)制作管片；(5) making segments;
(6)管片拼装：(6) Segment assembly:
对于直线地段，采用两个衬砌环1为一组，同组内的两个衬砌环1，其中一个衬砌环1相对于另一个衬砌环1绕隧道竖轴旋转180度，以拟合隧道直线纵轴线；For straight sections, two lining rings 1 are used as a group, and of the two lining rings 1 in the same group, one of the lining rings 1 is rotated 180 degrees around the vertical axis of the tunnel relative to the other lining ring 1 to fit the straight line of the tunnel. axis;
对于曲线地段，当曲线半径与衬砌环1的楔形量匹配时，全部采用同向衬砌环101拼装；当曲线半径与楔形量不匹配时，采用若干同向衬砌环101+1个绕隧道竖轴旋转180度的反向衬砌环102的组合方式拼装，以拟合隧道曲线纵轴线；For the curved section, when the radius of the curve matches the wedge shape of the lining ring 1, all lining rings 101 in the same direction are used to assemble; when the radius of the curve does not match the wedge shape, several lining rings 101+1 in the same direction are used to wrap around the vertical axis The combination of the reverse lining ring 102 rotated 180 degrees is assembled to fit the longitudinal axis of the tunnel curve;
其中，每个衬砌环1中，两个封顶管片11根据该衬砌环1的布置方式，确定其中一个封顶管片11最后拼装封顶，另一个作为该衬砌环1的首先拼装块。Wherein, in each lining ring 1, two capping segments 11 are determined according to the arrangement of the lining ring 1, and one of the capping segments 11 is finally assembled and capped, and the other is the first assembled block of the lining ring 1.
本实施例提供的矩形盾构隧道衬砌结构，只采用一种衬砌环1，管片制作简单，施工与管理方便。除少量的十字型缝15外(主要出现在“其中一个衬砌环1相对于另一个衬砌环1绕隧道竖轴旋转180度”的拼装结构中)，其余接缝均为丁字型缝16，从而显著地提高了隧道防水性能。The lining structure of the rectangular shield tunnel provided in this embodiment only uses one lining ring 1, the segments are easy to manufacture, and the construction and management are convenient. Except for a small number of cross-shaped seams 15 (mainly appearing in the assembled structure where "one of the lining rings 1 is rotated 180 degrees around the vertical axis of the tunnel relative to the other lining ring 1"), the rest of the seams are all T-shaped seams 16, so that Significantly improved the waterproof performance of the tunnel.
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、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
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