Tunnel lining segment assembled based on honeycomb structure and using method thereof

Abstract

The invention discloses a tunnel lining segment based on honeycomb structure assembly and a using method thereof. The tunnel lining segment comprises a starting segment, a standard segment and a sealing segment. The starting section comprises a plurality of rectangular blocks C and a plurality of waistcoat-shaped blocks B. The sealing section comprises a plurality of rectangular blocks D and a plurality of waistcoat-shaped blocks E. The rectangular blocks C and the waistcoat-shaped blocks B are arranged at intervals, the rectangular blocks D and the waistcoat-shaped blocks E are arranged at intervals, and an annular structure is defined by the rectangular blocks and the waistcoat-shaped blocks. The part, between the starting section and the sealing section, of the pipe section is a standard section, the standard section comprises a plurality of standard honeycomb blocks A, and the standard honeycomb blocks A are spliced in a staggered mode to form a honeycomb cylindrical structure. The use of bending bolts in a traditional lining pipe piece is reduced, the construction difficulty and the material cost are reduced, the stress borne by the pipe piece units is coupled to a plurality of surrounding pipe pieces in an assembling mode based on the honeycomb structure, and the overall stability and the compression resistance of the tunnel lining structure are improved; and meanwhile, existing shield equipment can be utilized for assembly, and extra research and development cost is not needed.

Description

Technical Field

[0001] This invention relates to the field of shield tunnel lining segment technology, specifically a tunnel lining segment based on honeycomb structure assembly and its application method. Background Technology

[0002] Shield tunneling technology is widely used in urban rail transit, railways, highways, water conservancy, and other fields due to its excellent construction safety, efficiency, high applicability, and low environmental impact. Shield segments are the main assembly components in shield tunneling, serving as the permanent lining structure of the tunnel; their quality directly affects the overall quality and safety of the tunnel. As tunnel engineering continues to advance into deeper and more extreme environments, the requirements for shield segments worldwide are becoming increasingly stringent.

[0003] Traditional shield tunnel lining typically consists of multiple rings of different types of segments, which are then connected along the tunnel axis to form the entire tunnel lining. The segments are mostly connected by bent bolts, a simplistic connection method. Furthermore, the currently used tunnel lining segments do not consider the stress coupling capacity between the individual segments, especially along the tunnel's longitudinal direction.

[0004] Meanwhile, the current consensus on the shape of lining segments is relatively limited, with few proposals for irregularly shaped segments other than the traditional rectangular and trapezoidal shapes. Furthermore, there is little exploration and research into the actual effects of various segments, whether in model tests or numerical simulations.

[0005] Therefore, there is a need to provide a new type of tunnel lining segment. Summary of the Invention

[0006] The purpose of this invention is to provide a tunnel lining segment based on honeycomb structure assembly, including a starting segment, a standard segment, and a sealing segment.

[0007] The starting segment includes several rectangular blocks C and several vest-shaped blocks B.

[0008] The rectangular block C is a block structure with an arc surface and a quadrilateral shape, including six faces: an inner arc surface, an outer arc surface, and side surfaces CI, CII, CIII, and CIV that connect the inner and outer arc surfaces in sequence.

[0009] The side surface CI and side surface CII are respectively provided with mounting grooves CI and CII. The side surface CIII is provided with a protrusion CI.

[0010] The vest-shaped block B is a block structure with a hexagonal arc surface, including eight faces: an inner arc surface, an outer arc surface, and side surfaces BI, BII, BIII, BIV, BV, and BVI that connect the inner and outer arc surfaces in sequence.

[0011] The side surfaces BI, BII, BIII, and BIV are respectively provided with mounting grooves BI, BII, BIII, and BIV. The side surface BV is provided with a protrusion BI.

[0012] The side surface BI and the side surface BV are positioned opposite each other.

[0013] Adjacent rectangular blocks C are connected by vest-shaped blocks B. Several rectangular blocks C and several vest-shaped blocks B are nested together to form a ring structure.

[0014] The sealing section includes several rectangular blocks D and several vest-shaped blocks E.

[0015] The body of the rectangular block D is the same as that of the rectangular block C. The rectangular block D has a mounting groove DI on its side surface DI, and protrusions DI and DII are respectively provided on side surface DII and side surface CIII.

[0016] The body of the vest-shaped block E is the same as that of the vest-shaped block B. The side surface EI of the vest-shaped block E is provided with a mounting groove EI, and the side surfaces EII, EIII, EIV and EEV are respectively provided with protrusions EI, EII, EIII and EIV.

[0017] Adjacent rectangular blocks D are connected by vest-shaped blocks E. Several rectangular blocks D and several vest-shaped blocks E are nested together to form a ring structure.

[0018] The tube segment between the starting section and the sealing section is a standard segment, which includes several standard honeycomb blocks A.

[0019] The standard honeycomb block A is a block structure with a hexagonal arc surface, including eight faces: an inner arc surface, an outer arc surface, and side surfaces AI, AII, AIII, AIV, AV, and AVI that connect the inner and outer arc surfaces in sequence.

[0020] The side surfaces AI, AII, and AIII are respectively provided with mounting grooves AI, AII, and AIII. The side surfaces AIV, AV, and AVI are respectively provided with protrusions AI, AII, and AIII.

[0021] The side surface AI is arranged opposite to the side surface AIV, the side surface AII is arranged opposite to the side surface AV, and the side surface AIII is arranged opposite to the side surface AVI.

[0022] Several standard honeycomb blocks A are nested together to form a ring structure through mounting grooves and protrusions, with one end nested and connected to rectangular block C and vest-shaped block B, and the other end nested and connected to rectangular block D and vest-shaped block E.

[0023] Furthermore, the starting segment includes three rectangular blocks C and three vest-shaped blocks B, respectively denoted as rectangular block CI, rectangular block CII, rectangular block CIII, and vest-shaped blocks BI, vest-shaped blocks BII, and vest-shaped blocks BIII.

[0024] The sealing section includes three rectangular blocks D and three vest-shaped blocks E, which are respectively denoted as rectangular block DI, rectangular block DII, rectangular block DIII, and vest-shaped blocks EI, vest-shaped blocks EII, and vest-shaped blocks EIII.

[0025] The standard segment comprises several layers, with standard cell blocks A of adjacent layers arranged alternately, and each layer comprising three standard cell blocks V.

[0026] Furthermore, the standard honeycomb block A is an axisymmetric block, with an angle of 60° between side surface AI and side surface AVI, and an angle of 150° between side surface AII and side surface AII.

[0027] Furthermore, the dimensions of the bump CI are adapted to the dimensions of the mounting groove BI, and the dimensions of the bump BI are adapted to the dimensions of the mounting groove CI.

[0028] The dimensions of the bump DI are adapted to the dimensions of the mounting groove EI, and the dimensions of the bump EIV are adapted to the dimensions of the mounting groove DI.

[0029] Furthermore, the dimensions of the bump AI are adapted to the dimensions of the mounting slot AI and the mounting slot BII.

[0030] The dimensions of the protrusion AII are adapted to the dimensions of the mounting grooves AII, CII, and BIII.

[0031] The dimensions of the protrusion AIII are adapted to the dimensions of the mounting groove AIII and the mounting groove BIV.

[0032] The dimensions of the protrusion EI are adapted to the dimensions of the mounting groove AIII.

[0033] The dimensions of the bump EII and bump DI are adapted to the dimensions of the mounting groove AII.

[0034] The dimensions of the bump EIII are adapted to the dimensions of the mounting groove AI.

[0035] Furthermore, the mounting slots A1, A2, and A3 are internally connected.

[0036] The mounting slots BII, BIII, and BIV are internally connected.

[0037] The mounting slots CI and CII are internally connected.

[0038] Furthermore, the bumps AI, AIII, EI, and EIII are trapezoidal bumps.

[0039] The angle between the plane containing the hypotenuse of the trapezoidal protrusion and the plane containing the bottom edge of the trapezoidal protrusion is 60°.

[0040] Furthermore, the inner contour of the mounting groove and the outer contour of the protrusion are both rounded.

[0041] The second objective of this invention is to provide a method for using tunnel lining segments assembled based on a honeycomb structure, comprising the following steps:

[0042] S1, Assembly Starting Section

[0043] S1.1. Assemble standard cellular blocks AI along the longitudinal direction of the tunnel onto rectangular blocks CI, wherein the rectangular blocks CI are located at the bottom of the starting section;

[0044] S1.2 Assemble the vest-shaped blocks BI and BII along the circumference of the tunnel at both ends of the rectangular block CI.

[0045] S1.3 Assemble rectangular blocks CII and CIII at the ends of the vest-shaped blocks BI and BII that are far from the rectangular block CI, respectively;

[0046] S1.4 Assemble the vest-shaped block BIII between rectangular block CII and rectangular block CIII, wherein the vest-shaped block BIII is located at the top of the starting section;

[0047] S2, Standard Assembly Section

[0048] S2.1. Assemble standard cellular blocks AII and AIII along the longitudinal direction of the tunnel onto rectangular blocks CII and CIII, respectively;

[0049] S2.2 Assemble standard cell block AIV between standard cell block AI and standard cell block AII;

[0050] Standard cell block AV is assembled between standard cell block AI and standard cell block AIII;

[0051] S2.3. Assemble standard cell block AVI between standard cell block AII and standard cell block AIII;

[0052] S2.4. Assemble the standard cell block AVII along the longitudinal direction of the tunnel onto the standard cell block AI to complete the assembly of the first cycle segment of the standard section;

[0053] S2.5 Repeat the above steps until the length of the loop segment reaches the design length, and complete the assembly of N loop segments;

[0054] S3, Assembly and Sealing Section

[0055] S3.1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A assembled at intervals are on the same generatrix as rectangular blocks CII and CIII, respectively.

[0056] S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment;

[0057] S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction;

[0058] S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively;

[0059] S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

[0060] The third objective of this invention is to provide a method for using tunnel lining segments assembled based on a honeycomb structure, comprising the following steps:

[0061] Includes the following steps:

[0062] S1, Assembly Starting Section

[0063] S1.1. Assemble standard cellular blocks AI along the longitudinal direction of the tunnel onto rectangular blocks CI, wherein the rectangular blocks CI are located at the bottom of the starting section;

[0064] S1.2 Assemble the vest-shaped blocks BI and BII along the circumference of the tunnel at both ends of the rectangular block CI.

[0065] S1.3 Assemble rectangular blocks CII and CIII at the ends of the vest-shaped blocks BI and BII that are far from the rectangular block CI, respectively;

[0066] S1.4 Assemble the vest-shaped block BIII between rectangular block CII and rectangular block CIII, wherein the vest-shaped block BIII is located at the top of the starting section;

[0067] S2, Standard Assembly Section

[0068] S2.1. Assemble standard cellular blocks AII and AIII along the longitudinal direction of the tunnel onto rectangular blocks CII and CIII, respectively;

[0069] S2.2 Assemble standard cell block AIV between standard cell block AI and standard cell block AII;

[0070] Standard cell block AV is assembled between standard cell block AI and standard cell block AIII;

[0071] S2.3. Assemble the standard cell block AVII along the longitudinal direction of the tunnel onto the standard cell block AI;

[0072] S2.4 Assemble standard cell block AVI between standard cell block AII and standard cell block AIII to complete the assembly of the first loop segment of the standard segment;

[0073] S3, Assembly and Sealing Section

[0074] S3.1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A assembled at intervals are on the same generatrix as rectangular blocks CII and CIII, respectively.

[0075] S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment;

[0076] S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction;

[0077] S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively;

[0078] S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

[0079] The technical effects of this invention are undeniable, and its beneficial effects are as follows:

[0080] 1. In bionics, the honeycomb structure is the optimal topological structure for covering a two-dimensional plane, possessing excellent geometric and mechanical properties. By making the lining segments of a standard section into a hexagonal honeycomb structure, the stress of a single tunnel segment can be reasonably coupled to the six adjacent lining structures, transferring stress between the segments to improve the overall structural performance and reduce stress concentration caused by local rock displacement.

[0081] 2. In this invention, the connection between a single pipe segment and its surrounding segments is closer. This invention utilizes the tenon and mortise structure on each side of the pipe segment to tightly connect the segments together, reducing the use of bending bolts. This not only avoids the damage to the pipe segment material caused by the use of traditional bending bolts, and the difficulty in bolt installation caused by slight misalignment, but also effectively reduces material and labor costs and construction difficulty, ensures the safety of construction personnel, and improves the integrity and stability of the lining structure. Attached Figure Description

[0082] Figure 1 This is a schematic diagram of the structure connecting the starting section and the standard section.

[0083] Figure 2 This is a schematic diagram of the structure connecting the sealing section and the standard section.

[0084] Figure 3 This is a schematic diagram of the structure of a standard honeycomb block A.

[0085] Figure 4 This is a structural diagram of rectangular block C.

[0086] Figure 5 This is a schematic diagram of the structure of the vest-shaped block B.

[0087] Figure 6 This is a schematic diagram of the structure of rectangular block D.

[0088] Figure 7 This is a schematic diagram of the structure of the vest-shaped block E.

[0089] Figure 8 This is a schematic diagram of the assembly of rectangular block C and vest-shaped block B in the starting section.

[0090] Figure 9 This is a schematic diagram of the assembly of rectangular block D and vest-shaped block E in the sealing section.

[0091] Figure 10 This is a schematic diagram illustrating the connection process between the starting segment and the first loop segment of the standard segment;

[0092] Figure 10 (a) is a schematic diagram of the rectangular block CI;

[0093] (b) is a schematic diagram of standard cell block AI assembly;

[0094] (c) is a schematic diagram of the assembly of vest-shaped block BI and vest-shaped block BII;

[0095] (d) is a schematic diagram of the assembly of rectangular block CII and rectangular block CIII;

[0096] (e) is a schematic diagram of the assembly of the vest-shaped block BIII;

[0097] (f) is a schematic diagram of the assembly of standard cell block AII and standard cell block AIII;

[0098] (g) is a schematic diagram of the assembly of standard cell block AIV and standard cell block AV;

[0099] (h) is a schematic diagram of the standard AVI cell block assembly;

[0100] (i) is a schematic diagram of the standard honeycomb block AVII assembly.

[0101] In the diagram: 1-Standard cell block A; 101-Mounting slot AI; 102-Mounting slot AII; 103-Mounting slot AIII; 104-Protrusion AI; 105-Protrusion AII; 106-Protrusion AIII; 107-Standard cell block AI; 108-Standard cell block AII; 109-Standard cell block AIII; 110-Standard cell block AIV; 111-Standard cell block AV; 112-Standard cell block AVI; 113-Standard cell block AVII;

[0102] 2-Rectangular block C; 201-Mounting slot CI; 202-Mounting slot CII; 203-Protrusion CI;

[0103] 204 - Rectangular block CI; 205 - Rectangular block CII; 206 - Rectangular block CIII;

[0104] 3-Vest-shaped block B; 301-Mounting slot BI; 302-Mounting slot BII; 303-Mounting slot BIII; 304-Mounting slot BIV; 305-Protrusion BI;

[0105] 306-Vest-shaped block BI; 307-Vest-shaped block BII; 308-Vest-shaped block BIII;

[0106] 4-Rectangular block D; 401-Mounting groove DI; 402-Bump DI; 403-Bump DII;

[0107] 5-Vest-shaped block E; 501-Mounting groove EI; 502-Protrusion EI; 503-Protrusion EII; 504-Protrusion EIII; 505-Protrusion EIV. Detailed Implementation

[0108] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0109] Example 1:

[0110] A tunnel lining segment based on honeycomb structure assembly includes a starting section, a standard section, and a sealing section.

[0111] See Figure 1 The starting segment includes several rectangular blocks C2 and several vest-shaped blocks B3.

[0112] See Figure 4 The rectangular block C2 is a block structure with an arc surface and a quadrilateral shape, including six faces: an inner arc surface, an outer arc surface, and side surfaces CI, CII, CIII, and CIV that connect the inner and outer arc surfaces in sequence.

[0113] Mounting grooves CI201 and CI1202 are respectively provided on the side surface CI and side surface CII. A protrusion CI203 is provided on the side surface CIII.

[0114] See Figure 5 The vest-shaped block B3 is a block structure with a hexagonal arc surface, including eight faces: an inner arc surface, an outer arc surface, and side surfaces BI, BII, BIII, BIV, BV, and BVI that connect the inner and outer arc surfaces in sequence.

[0115] The side surfaces BI, BII, BIII, and BIV are respectively provided with mounting grooves BI301, BII302, BIII303, and BIV304. The side surface BV is provided with a protrusion BI305.

[0116] The side surface BI and the side surface BV are positioned opposite each other.

[0117] Adjacent rectangular blocks C2 are connected by vest-shaped blocks B3. Several rectangular blocks C2 and several vest-shaped blocks B3 are nested together to form a ring structure.

[0118] See Figure 2 The sealing section includes several rectangular blocks D4 and several vest-shaped blocks E5.

[0119] See Figure 6 The body of rectangular block D4 is the same as that of rectangular block C2. Rectangular block D4 is a block structure with an arc surface and a quadrilateral shape, including six faces: an inner arc surface, an outer arc surface, and side surfaces DI, DII, DIII, and DIV that connect the inner and outer arc surfaces in sequence.

[0120] The side surface DI is provided with a mounting groove DI401, and the side surface DII and side surface CIII are respectively provided with a protrusion DI402 and a protrusion DII403.

[0121] See Figure 7 The body of the vest-shaped block E5 is the same as that of the vest-shaped block B3. The vest-shaped block E5 is a block structure with a hexagonal arc surface, including eight faces: an inner arc surface, an outer arc surface, and side surfaces EI, EII, EIII, EIV, EV, and EVI that connect the inner and outer arc surfaces in sequence.

[0122] The side surface EI is provided with a mounting groove EI501, and the side surfaces EII, EIII, EIV and EV are respectively provided with protrusions EI502, EII503, EIII504 and EIV505.

[0123] Adjacent rectangular blocks D4 are connected by vest-shaped blocks E5. Several rectangular blocks D4 and several vest-shaped blocks E5 are nested together to form a ring structure.

[0124] The tube segment between the starting section and the sealing section is a standard segment, which includes several standard honeycomb blocks A1.

[0125] See Figure 3 The standard honeycomb block A1 is a block structure with a hexagonal arc surface, including eight faces: an inner arc surface, an outer arc surface, and side surfaces AI, AII, AIII, AIV, AV, and AVI that connect the inner and outer arc surfaces in sequence.

[0126] The side surfaces AI, AII, and AIII are respectively provided with mounting grooves AI101, AII102, and AIII103. The side surfaces AIV, AV, and AVI are respectively provided with protrusions AI104, AII105, and AIII106.

[0127] The side surface AI is arranged opposite to the side surface AIV, the side surface AII is arranged opposite to the side surface AV, and the side surface AIII is arranged opposite to the side surface AVI.

[0128] Several standard honeycomb blocks A1 are nested together to form a ring structure, with one end nested with rectangular block C2 and vest-shaped block B3, and the other end nested with rectangular block D4 and vest-shaped block E5.

[0129] Example 2:

[0130] The main structure of this embodiment is the same as that of Embodiment 1. Further, see [link to Embodiment 1]. Figure 8The starting segment includes three rectangular blocks C2 and three vest-shaped blocks B3, which are respectively denoted as rectangular block CI204, rectangular block CII205, rectangular block CIII206 and vest-shaped blocks BI306, vest-shaped blocks BII307 and vest-shaped blocks BIII308.

[0131] See Figure 9 The sealing section includes three rectangular blocks D4 and three vest-shaped blocks E5, which are respectively denoted as rectangular block DI, rectangular block DII, rectangular block DIII, and vest-shaped blocks EI, vest-shaped blocks EII, and vest-shaped blocks EIII.

[0132] The standard segment comprises several layers, with standard cell blocks A of adjacent layers arranged alternately, and each layer comprising three standard cell blocks V1.

[0133] Example 3:

[0134] The main structure of this embodiment is the same as any one of embodiments 1 to 2. Furthermore, the standard honeycomb block A1 is an axisymmetric block, with an angle of 60° between side surface AI and side surface AVI, and an angle of 150° between side surface AI and side surface AII.

[0135] Example 4:

[0136] The main structure of this embodiment is the same as any one of embodiments 1 to 3. Furthermore, the size of the protrusion CI203 is adapted to the size of the mounting groove BI301, and the size of the protrusion BI305 is adapted to the size of the mounting groove CI201.

[0137] The dimensions of the bump DI403 are adapted to the dimensions of the mounting groove EI501, and the dimensions of the bump EIV505 are adapted to the dimensions of the mounting groove DI401.

[0138] Example 5:

[0139] The main structure of this embodiment is the same as any one of embodiments 1 to 4. Furthermore, the size of the protrusion AI104 is adapted to the size of the mounting groove AI101 and the mounting groove BII302.

[0140] The dimensions of the protrusion AII105 are adapted to the dimensions of the mounting grooves AII102, CII202, and BIII303.

[0141] The dimensions of the protrusion AIII106 are adapted to the dimensions of the mounting groove AIII103 and the mounting groove BIV304.

[0142] The dimensions of the bump EI502 are adapted to the dimensions of the mounting groove AIII103.

[0143] The dimensions of the bumps EII503 and DI402 are adapted to the dimensions of the mounting groove AII102.

[0144] The dimensions of the bump EIII504 are adapted to the dimensions of the mounting groove AI101.

[0145] Example 6:

[0146] The main structure of this embodiment is the same as any one of embodiments 1 to 5. Furthermore, the internal connections of the mounting slots AI101, AII102, and AIII103 are made.

[0147] The mounting slots BII302, BIII303, and BIV304 are internally connected.

[0148] The mounting slots CI201 and CII202 are internally connected.

[0149] Example 7:

[0150] The main structure of this embodiment is the same as any one of embodiments 1 to 6. Further, see [link to embodiment 1-6]. Figure 3 , Figure 7 The bumps AI104, AIII106, EI502, and EIII504 are trapezoidal bumps.

[0151] The angle between the plane containing the hypotenuse of the trapezoidal protrusion and the plane containing the bottom edge of the trapezoidal protrusion is 60°.

[0152] All other bumps are rectangular bumps.

[0153] Example 8:

[0154] The main structure of this embodiment is the same as any one of embodiments 1 to 7. Furthermore, the inner contour of the mounting groove and the outer contour of the protrusion are both rounded.

[0155] Example 9:

[0156] The main structure of this embodiment is the same as any one of embodiments 1 to 8, and further includes several standard honeycomb blocks A, rectangular blocks C and vest-shaped blocks B.

[0157] In the starting and sealing section, the rectangular block CI is located at the bottom and is vertically connected to the standard honeycomb block AI. The rectangular block CI and the standard honeycomb block AI together connect to the left and right vest-shaped blocks BI and BII. The left and right vest-shaped blocks BI and BII continue to connect to the corresponding rectangular blocks CII and CIII, respectively. The rectangular blocks CII and CIII are connected to the same vest-shaped block BIII at the top, forming a closed loop. In the standard section, the standard honeycomb blocks A are staggered to form a honeycomb cylindrical structure.

[0158] The standard honeycomb block A has a hexagonal block structure with a certain curvature and thickness. The standard honeycomb block A is provided with three continuous grooves and three protrusions.

[0159] The rectangular block C has an overall fan-ring structure, and the rectangular block C is provided with continuous grooves on adjacent surfaces and protrusions on the sides.

[0160] The vest-shaped block B has a combined block structure with a certain curvature and thickness, consisting of an isosceles trapezoid at the top and a rectangle at the bottom. The vest-shaped block is provided with three continuous grooves, side grooves, and side protrusions.

[0161] The three-sided continuous groove is located in the upper isosceles trapezoidal structure of the vest-shaped block B. The side grooves and side protrusions are both located in the lower rectangular structure of the vest-shaped block B.

[0162] Preferably, the circumferential angle between the two tips of the standard honeycomb block A is 60°, and the standard honeycomb block A is an axisymmetric block.

[0163] The standard honeycomb block A and the vest-shaped block B have the same dimensions for their three continuous grooves. The internal space of each groove is a rectangular body, and the grooves are continuous at the corners on both sides. The depth of the three continuous grooves remains constant.

[0164] The middle surface of the three-sided protrusion is a rectangular protrusion. The angle between the sides of the rectangular protrusion at both ends along the longitudinal direction on the two adjacent inclined surfaces and the corresponding inclined surfaces is 60°. The protrusions at the corners of the two surfaces are discontinuous.

[0165] Preferably, the included angle between the three continuous grooves and the adjacent surfaces of the three protrusions is 150 degrees.

[0166] The three-sided continuous groove and three-sided protrusion provided on the standard honeycomb block A, as well as the three-sided continuous groove provided on the vest-shaped block, can interlock with each other.

[0167] The three-sided continuous groove, the inner contour of the side groove, and the outer contour of the three-sided protrusion and the side protrusion are all rounded to facilitate smooth insertion between the tenon and mortise structures during assembly, avoiding segment jamming due to insufficient precision.

[0168] The rectangular block C has continuous grooves on adjacent surfaces at one circumferential end and one longitudinal end, and the grooves are continuous at the corners of both surfaces. The other circumferential end of the rectangular block C has a side protrusion. The side protrusion is a rectangular protrusion.

[0169] The vest-shaped block B has a side groove at one circumferential end. The vest-shaped block B has a side protrusion at the other circumferential end. The side protrusion is a rectangular protrusion.

[0170] The side protrusions and side grooves on the rectangular block C and the vest-shaped block B, as well as the adjacent continuous grooves and side grooves, can interlock with each other.

[0171] It is worth noting that after the standard honeycomb block A, rectangular block C, and vest-shaped block B are assembled, there are no extra gaps between the tenon and mortise structures, and the tunnel lining structure is completely integrated, tightly connected, and evenly stressed.

[0172] Example 10:

[0173] A method for using tunnel lining segments based on honeycomb structure assembly as described in Examples 1-9 includes the following steps:

[0174] S1, Assembly Starting Section

[0175] S1.1 Assemble the standard honeycomb block AI107 along the tunnel longitudinal direction onto the rectangular block CI204, so that the protrusion AII105 is embedded in the mounting groove CII202, see [link to documentation]. Figure 10 (b);

[0176] The rectangular block CI204 is located at the bottom of the starting section;

[0177] S1.2 Assemble the vest-shaped blocks BI306 and BII307 along the tunnel circumference at both ends of the rectangular block CI204. See [link / reference]. Figure 10 (c);

[0178] S1.3. Assemble rectangular blocks CII205 and CIII206 respectively at the ends of vest-shaped blocks BI306 and BII307 that are furthest from rectangular block CI204. See below. Figure 10 (d);

[0179] S1.4 Assemble the vest-shaped block BIII308 between rectangular blocks CII205 and CIII206. The vest-shaped block BIII308 is located at the top of the starting section. See [link / reference]. Figure 10 (e);

[0180] S2, Standard Assembly Section

[0181] S2.1. Assemble standard cellular blocks AII108 and AIII109 along the tunnel longitudinal direction onto rectangular blocks CII205 and CIII206 respectively. (See below) Figure 10 (f);

[0182] S2.2 Assemble standard cell block AIV110 between standard cell block AI107 and standard cell block AII108;

[0183] Assemble standard cell block AV111 between standard cell block AI107 and standard cell block AIII109. See Figure 10 (g);

[0184] S2.3. Assemble standard cell block AVI112 between standard cell block AII108 and standard cell block AIII109, see [link / reference]. Figure 10 (h);

[0185] S2.4. Assemble standard cell block AVII113 along the tunnel longitudinal direction onto standard cell block AI107 to complete the assembly of the first cycle segment of the standard section. See [link / reference]. Figure 10 (i);

[0186] S2.5 Repeat the above steps until the length of the loop segment reaches the design length, and complete the assembly of N loop segments;

[0187] S3, Assembly and Sealing Section

[0188] S3.1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A assembled at intervals are on the same generatrix as rectangular blocks CII205 and CIII206, respectively.

[0189] S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment;

[0190] S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction;

[0191] S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively;

[0192] S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

[0193] Example 11:

[0194] A method for using tunnel lining segments based on honeycomb structure assembly as described in Examples 1-9 includes the following steps:

[0195] S1, Assembly Starting Section

[0196] S1.1. Assemble the standard honeycomb block AI107 along the longitudinal direction of the tunnel onto the rectangular block CI204, wherein the rectangular block CI204 is located at the bottom of the starting section;

[0197] S1.2 Assemble the vest-shaped blocks BI306 and BII307 along the tunnel circumference at both ends of the rectangular block CI204 in the circumferential direction;

[0198] S1.3. Assemble rectangular blocks CII205 and CIII206 at the ends of vest-shaped blocks BI306 and BII307 that are away from rectangular block CI204, respectively.

[0199] S1.4 Assemble the vest-shaped block BIII308 between rectangular block CII205 and rectangular block CIII206, wherein the vest-shaped block BIII308 is located at the top of the starting section;

[0200] S2, Standard Assembly Section

[0201] S2.1. Standard cellular blocks AII108 and AIII109 are assembled along the tunnel longitudinal direction onto rectangular blocks CII205 and CIII206, respectively.

[0202] S2.2 Assemble standard cell block AIV110 between standard cell block AI107 and standard cell block AII108;

[0203] Standard cell block AV111 is assembled between standard cell block AI107 and standard cell block AIII109;

[0204] S2.3. Assemble standard cell block AVII113 along the longitudinal direction of the tunnel onto standard cell block AI107;

[0205] S2.4 Assemble standard cell block AVI112 between standard cell block AII108 and standard cell block AIII109 to complete the assembly of the first cycle segment of the standard segment;

[0206] S3, Assembly and Sealing Section

[0207] S3.1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A assembled at intervals are on the same generatrix as rectangular blocks CII205 and CIII206, respectively.

[0208] S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment;

[0209] S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction;

[0210] S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively;

[0211] S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

[0212] Example 12:

[0213] The method described in Example 10 differs from the method described in Example 11 in that steps S2.3) and S2.4).

[0214] The standard segment includes several cyclic segments, each cyclic segment including three layers of standard cellular blocks A. Taking the first cyclic segment as an example:

[0215] The first layer includes standard cell blocks AII108 and AIII109; the second layer includes standard cell blocks AIV110, AV111, and AVI112; and the third layer includes standard cell block AVII113.

[0216] In Example 10, the standard cell block A (standard cell block AVI112) at the top of the second layer is installed first, and then the standard cell block A (standard cell block AVII113) at the bottom of the third layer is installed.

[0217] In Example 11, the standard cell block A (standard cell block AVII113) at the bottom of the third layer is installed first, and then the standard cell block A (standard cell block AVI112) at the top of the second layer is installed.

[0218] Example 13:

[0219] A method for using tunnel lining segments based on honeycomb structure assembly as described in Examples 1-12 includes the following steps:

[0220] Starting segment:

[0221] S1: First, assemble rectangular blocks at the bottom, and then continue to assemble standard honeycomb blocks in the longitudinal direction of the tunnel to fit tightly with the rectangular blocks;

[0222] S2: Assemble vest-shaped blocks one after another on the left and right sides of the bottom rectangular block, which interlock with the bottom rectangular block and standard honeycomb block described in S1;

[0223] S3: Continue to assemble rectangular blocks sequentially at the adjacent positions of the vest-shaped blocks on the left and right sides of the ring;

[0224] S4: Finally, assemble the top vest-shaped block to make the whole ring tightly interlocked through the mortise and tenon structure;

[0225] Standard Section (Continued Origin Section) (Option 1):

[0226] S5: At the bottom, standard honeycomb blocks continue to be assembled longitudinally in the tunnel and tightly interlock with the standard honeycomb blocks of the previous ring at the same horizontal level;

[0227] S6: Standard honeycomb blocks are assembled sequentially between the triangular gaps formed on the left and right sides of the newly assembled standard honeycomb block described in S5 and the previous ring standard honeycomb block, with each standard honeycomb block tightly interlocked.

[0228] S7: Similar assembly operations are repeated, following the analogy of S6.

[0229] S8: Assemble the standard honeycomb blocks at the top to ensure that the entire ring is tightly interlocked (the standard honeycomb blocks at the top need to be held in place immediately after installation to prevent them from loosening and falling off);

[0230] This cycle repeats;

[0231] Standard Section (Continued Origin Section) (Option 2):

[0232] S8': Unlike Scheme 1, the step of assembling the top standard honeycomb block described in S8 is placed in S6 of the next ring. After assembling the standard honeycomb block on one side, the top standard honeycomb block that was not assembled in the previous ring is assembled, and then the standard honeycomb block on the other side is assembled.

[0233] This cycle repeats;

[0234] Sealing section:

[0235] S9: The steps are the same as those described in the initiation segment.

Claims

1. A tunnel lining segment based on honeycomb structure assembly, characterized in that: Including the starting section, standard section, and closing section; The starting segment includes several rectangular blocks C(2) and several vest-shaped blocks B(3); The rectangular block C(2) is a block structure with an arc surface and a quadrilateral shape, including six faces, namely an inner arc surface, an outer arc surface, and side surfaces CI, CII, CIII and CIV that connect the inner and outer arc surfaces in sequence. The side surface CI and side surface CII are respectively provided with mounting groove CI (201) and mounting groove CII (202); the side surface CIII is provided with protrusion CI (203); The vest-shaped block B(3) is a block structure with a hexagonal arc surface, including eight faces, namely an inner arc surface, an outer arc surface, and side surfaces BI, BII, BIII, BIV, BV, and BVI that connect the inner and outer arc surfaces in sequence. The side surfaces BI, BII, BIII, and BIV are respectively provided with mounting grooves BI (301), BII (302), BIII (303), and BIV (304); the side surface BV is provided with a protrusion BI (305). The side surface BI and the side surface BV are arranged opposite to each other; Adjacent rectangular blocks C(2) are connected by vest-shaped blocks B(3); several rectangular blocks C(2) and several vest-shaped blocks B(3) are nested together to form a ring structure; The sealing section includes several rectangular blocks D(4) and several vest-shaped blocks E(5); The body of the rectangular block D(4) is the same as the body of the rectangular block C(2); the side surface DI of the rectangular block D(4) is provided with a mounting groove DI(401), and the side surface DII and the side surface CIII are respectively provided with a protrusion DI(402) and a protrusion DII(403). The body of the vest-shaped block E(5) is the same as the body of the vest-shaped block B(3); the side surface EI of the vest-shaped block E(5) is provided with a mounting groove EI(501), and the side surfaces EII, EIII, EIV and EV are respectively provided with protrusions EI(502), EII(503), EIII(504) and EIV(505); Adjacent rectangular blocks D(4) are connected by vest-shaped blocks E(5); several rectangular blocks D(4) and several vest-shaped blocks E(5) are nested together to form a ring structure; The tube segment between the starting section and the sealing section is a standard segment, and the standard segment includes several standard honeycomb blocks A(1); The standard honeycomb block A(1) is a block structure with a hexagonal arc surface, including eight faces, namely an inner arc surface, an outer arc surface, and side surfaces AI, AII, AIII, AIV, AV, and AVI that are connected to the inner and outer arc surfaces in sequence. The side surfaces AI, AII, and AIII are respectively provided with mounting grooves AI (101), AII (102), and AIII (103); the side surfaces AIV, AV, and AVI are respectively provided with protrusions AI (104), AII (105), and AIII (106). The side surface AI is arranged opposite to the side surface AIV, the side surface AII is arranged opposite to the side surface AV, and the side surface AIII is arranged opposite to the side surface AVI. Several standard honeycomb blocks A(1) are nested together by mounting grooves and protrusions to form a ring structure, with one end nested with rectangular block C(2) and vest-shaped block B(3), and the other end nested with rectangular block D(4) and vest-shaped block E(5).

2. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The starting segment includes three rectangular blocks C(2) and three vest-shaped blocks B(3), which are respectively denoted as rectangular block CI(204), rectangular block CII(205), rectangular block CIII(206) and vest-shaped blocks BI(306), vest-shaped blocks BII(307), and vest-shaped blocks BIII(308). The sealing section includes three rectangular blocks D(4) and three vest-shaped blocks E(5), which are respectively denoted as rectangular block DI, rectangular block DII, rectangular block DIII and vest-shaped blocks EI, vest-shaped blocks EII and vest-shaped blocks EIII; The standard segment comprises several layers, with standard cellular blocks A of adjacent layers arranged alternately, and each layer comprising three standard cellular blocks V(1).

3. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The standard honeycomb block A(1) is an axisymmetric block with an angle of 60° between side surface AI and side surface AVI and an angle of 150° between side surface AI and side surface AII.

4. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The dimensions of the bump CI (203) are adapted to the dimensions of the mounting groove BI (301), and the dimensions of the bump BI (305) are adapted to the dimensions of the mounting groove CI (201). The dimensions of the bump DI (403) are adapted to the dimensions of the mounting groove EI (501), and the dimensions of the bump EIV (505) are adapted to the dimensions of the mounting groove DI (401).

5. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The dimensions of the protrusion AI (104) are adapted to the dimensions of the mounting groove AI (101) and the mounting groove BII (302); The dimensions of the protrusion AII (105) are adapted to the dimensions of the mounting groove AII (102), mounting groove CII (202), and mounting groove BIII (303); The dimensions of the protrusion AIII (10) are adapted to the dimensions of the mounting groove AIII (103) and the mounting groove BIV (304); The dimensions of the protrusion EI (502) are adapted to the dimensions of the mounting groove AIII (103); The dimensions of the bump EII (503) and bump DI (402) are adapted to the dimensions of the mounting groove AII (102); The dimensions of the bump EIII (504) are adapted to the dimensions of the mounting groove AI (101).

6. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The mounting slots AI (101), AII (102), and AIII (103) are internally connected; The mounting slots BII (302), BIII (303), and BIV (304) are internally connected; The mounting slots CI (201) and CII (202) are internally connected.

7. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The bumps AI (104), AIII (106), EI (502), and EIII (504) are trapezoidal bumps. The angle between the plane containing the hypotenuse of the trapezoidal protrusion and the plane containing the bottom edge of the trapezoidal protrusion is 60°.

8. A tunnel lining segment based on honeycomb structure assembly according to claim 1, characterized in that: The inner contour of the mounting groove and the outer contour of the protrusion are both rounded.

9. A method for using tunnel lining segments assembled based on a honeycomb structure as described in claims 1-8, characterized in that, Includes the following steps: S1, Assembly Starting Section S1.

1. The standard honeycomb block AI (107) is assembled on the rectangular block CI (204) along the longitudinal direction of the tunnel, and the rectangular block CI (204) is located at the bottom of the starting section; S1.2 Assemble the vest-shaped block BI (306) and vest-shaped block BII (307) along the tunnel circumference at both ends of the rectangular block CI (204); S1.

3. At the ends of the vest-shaped blocks BI (306) and BII (307) that are far from the rectangular block CI (204), assemble the rectangular blocks CII (205) and CIII (206) respectively. S1.4 Assemble the vest-shaped block BIII (308) between the rectangular block CII (205) and the rectangular block CIII (206), wherein the vest-shaped block BIII (308) is located at the top of the starting section; S2, Standard Assembly Section S2.

1. Standard cellular blocks AII (108) and AIII (109) are assembled along the tunnel longitudinal direction onto rectangular blocks CII (205) and CIII (206), respectively. S2.2 Assemble standard cell block AIV (110) between standard cell block AI (107) and standard cell block AII (108); Standard cell block AV (111) is assembled between standard cell block AI (107) and standard cell block AIII (109); S2.3 Assemble standard cell block AVI (112) between standard cell block AII (108) and standard cell block AIII (109); S2.

4. Assemble the standard cell block AVII (113) along the longitudinal direction of the tunnel onto the standard cell block AI (107) to complete the assembly of the first cycle of the standard section; S2.5 Repeat the above steps until the length of the loop segment reaches the design length, and complete the assembly of N loop segments; S3, Assembly and Sealing Section S3.

1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A are on the same generatrix as rectangular blocks CII (205) and rectangular blocks CIII (206), respectively. S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment; S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction; S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively; S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

10. A method for using tunnel lining segments assembled based on a honeycomb structure as described in claims 1-8, characterized in that, Includes the following steps: S1, Assembly Starting Section S1.

1. The standard honeycomb block AI (107) is assembled on the rectangular block CI (204) along the longitudinal direction of the tunnel, and the rectangular block CI (204) is located at the bottom of the starting section; S1.2 Assemble the vest-shaped block BI (306) and vest-shaped block BII (307) along the tunnel circumference at both ends of the rectangular block CI (204); S1.

3. At the ends of the vest-shaped blocks BI (306) and BII (307) that are far from the rectangular block CI (204), assemble the rectangular blocks CII (205) and CIII (206) respectively. S1.4 Assemble the vest-shaped block BIII (308) between the rectangular block CII (205) and the rectangular block CIII (206), wherein the vest-shaped block BIII (308) is located at the top of the starting section; S2, Standard Assembly Section S2.

1. Standard cellular blocks AII (108) and AIII (109) are assembled along the tunnel longitudinal direction onto rectangular blocks CII (205) and CIII (206), respectively. S2.2 Assemble standard cell block AIV (110) between standard cell block AI (107) and standard cell block AII (108); Standard cell block AV (111) is assembled between standard cell block AI (107) and standard cell block AIII (109); S2.

3. Assemble the standard cellular block AVII (113) along the longitudinal direction of the tunnel onto the standard cellular block AI (107); S2.4 Assemble standard cell block AVI (112) between standard cell block AII (108) and standard cell block AIII (109) to complete the assembly of the first cycle segment of the standard segment; S3, Assembly and Sealing Section S3.

1. At intervals on both sides of the standard honeycomb block A at the bottom of the Nth cycle segment, two standard honeycomb blocks A are assembled at intervals. The two standard honeycomb blocks A are on the same generatrix as rectangular blocks CII (205) and rectangular blocks CIII (206), respectively. S3.2 Assemble the rectangular block DI along the longitudinal direction of the tunnel with the standard honeycomb block A at the bottom of the Nth cycle segment; S3.3 Assemble the vest-shaped blocks EI and EII along the tunnel circumference at both ends of the rectangular block DI in the circumferential direction; S3.4 Assemble rectangular blocks DII and DIII at the ends of vest-shaped blocks EI and EII that are far from rectangular block DI, respectively; S3.5 Assemble the vest-shaped block EIII between rectangular block DII and rectangular block DIII to complete the assembly of the sealing section.

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