Construction technology of a single-ring nine-piece tunnel lining assembling equipment

Abstract

The present invention provides a construction process for a single-ring multi-piece tunnel lining assembly device. The lining segment to be installed is transported to the position below the side of the assembly trolley. The lining segment installation machine is connected to the lining segment to be installed. The installation trolley moves, and at the same time, the lining segment installation machine rotates and adjusts to position the lining segment to be installed at the installation position. Bolts between the lining segment to be installed and the adjacent lining segment are installed. Another lining segment is installed, and the installation sequence is symmetrically and staggeredly installed from bottom to top until only the last lining segment at the arch part remains. The annular track longitudinally moves forward by the width of one ring of tunnel lining, and then positions the last lining segment at the arch part directly in front of the installation position. The annular track longitudinally moves backward, inserts the lining segment into the installation position, and connects the bolts, completing the installation of one ring of tunnel lining. It can perform single-ring multi-piece assembly on prefabricated tunnel linings, with fewer construction personnel, higher installation efficiency, and high installation accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel lining installation, and particularly relates to a construction process of a single-ring nine-piece tunnel lining assembling device. Background Art

[0002] At present, there are mainly two methods for tunnel lining. One method is to directly pour integral concrete lining in the tunnel. The other method is to prefabricate a number of components in a factory or on-site, transport them into the tunnel, and use machinery to assemble them into ring-by-ring linings. The prefabricated tunnel lining has many advantages: (1) Once assembled, it can bear the surrounding rock pressure without the need for curing time; (2) A large number of components can be mass-produced in the factory and assembled mechanistically, thus improving the working conditions and saving labor; (3) When assembling, no temporary supports such as arch frames and formworks are required, thus saving a large amount of support materials and labor; (4) The assembling speed is increased due to the use of mechanization, shortening the construction period and possibly reducing the cost; (5) The prefabricated lining has strong adaptability and can be used in some special environments such as high-cold areas.

[0003] In order to facilitate the installation of prefabricated tunnel lining, currently, a ring of tunnel lining segments can be divided into multiple pieces for separate assembly. Therefore, it is very necessary to provide a device and a construction process capable of assembling prefabricated tunnel lining to solve the problems of speed, quality, and efficiency in current engineering construction. Summary of the Invention

[0004] The present invention provides a construction process of a single-ring nine-piece tunnel lining assembling device, which can perform single-ring multi-piece assembly on prefabricated tunnel lining, with fewer construction workers, higher installation efficiency, and high installation accuracy.

[0005] The technical solution adopted to achieve the above object of the present invention is as follows:

[0006] A construction process of a single-ring multi-piece tunnel lining assembling device, where each ring of tunnel lining is assembled by multiple lining segments. The lining segments are installed by an assembling trolley. When installing the lining segments, they are symmetrically and staggeredly installed from the bottom upwards, and the last lining segment at the arch part is inserted and installed longitudinally.

[0007] The assembled trolley includes an assembled frame, an assembled traveling mechanism, a circular track, a mounting trolley, and a lining segment mounting machine. The assembled traveling mechanism is installed at the bottom of the assembled frame. The circular track is horizontally installed above the assembled frame through a longitudinal movement mechanism, enabling the circular track to move longitudinally along the assembled frame. The mounting trolley is installed on the circular track and travels along the circular track. The lining segment mounting machine is fixed on the side of the mounting trolley near the tunnel entrance. The lining segment mounting machine includes a rotary mounting head and a multi-degree-of-freedom adjustment gripper connected in sequence. The rotary mounting head is connected to the mounting trolley and rotates horizontally around the mounting trolley. The multi-degree-of-freedom adjustment gripper is connected to the lining segment and adjusts the position of the lining segment with multiple degrees of freedom.

[0008] The specific construction process is as follows:

[0009] S1. Move the assembled trolley to the installation position for preliminary positioning. Longitudinally move the circular track so that the lining segment mounting machine is directly below the ring of tunnel lining to be installed.

[0010] S2. Transport the lining segment to be installed to the position below the side of the assembled trolley.

[0011] S3. The mounting trolley on the assembled trolley moves. At the same time, the lining segment mounting machine rotates and adjusts to above the lining segment to be installed, and connects the lining segment mounting machine to the lining segment to be installed.

[0012] S4. The mounting trolley moves. At the same time, the lining segment mounting machine rotates and adjusts to position the lining segment to be installed at the installation position.

[0013] S5. Install the bolts between the lining segment to be installed and the adjacent lining segments.

[0014] S6. Install another lining segment according to steps S2 to S5. The installation sequence is symmetrically staggered from bottom to top until only the last lining segment in the arch part remains.

[0015] S7. Longitudinally move the circular track forward by the width of one ring of tunnel lining. Then, according to steps S2 to S4, position the last lining segment in the arch part directly in front of the installation position. Move the circular track backward, insert the lining segment into the installation position, and connect the bolts. One ring of tunnel lining is installed.

[0016] S8. Move the assembled trolley to the installation position of the next ring for the installation of the next ring of tunnel lining, and cycle in sequence to complete the tunnel lining assembly construction.

[0017] After completing the assembly of 8 rings of tunnel lining, perform grouting and backfilling once.

[0018] After positioning the lining segment at the installation position in steps S4, S6, and S7, disconnect the connection between the lining segment mounting machine and the lining segment. At the same time, press the lining segment with the pressing trolley, and then connect the bolts between the lining segments.

[0019] The compacting trolley stands in front of the assembling trolley. The compacting trolley includes a compacting frame, a compacting traveling mechanism, and a compacting oil cylinder. The compacting traveling mechanism is installed at the bottom of the compacting frame. The compacting oil cylinders are longitudinally distributed and fixed on the compacting frame, and the number and positions of the compacting oil cylinders match the number and positions of a multi-piece lining segment for one ring. The compacting oil cylinders extend and retract to compact the newly installed lining segment from the side.

[0020] In step (2), the transportation of the lining segments to be installed is jointly completed by a transport vehicle, a transfer gantry crane, and a segment feeding device.

[0021] The segment feeding device stands on the sides of the assembling trolley and the compacting trolley. The segment feeding device includes a longitudinally arranged transmission track and a lifting and rotating mechanism distributed and connected to the transmission track.

[0022] The rotary installation head includes a driving motor, a planetary reducer, and a slewing bearing. The planetary reducer is fixed on the installation trolley, the driving motor is installed at the input end of the planetary reducer, the slewing bearing is rotatably sleeved on the output end of the planetary reducer, and the driving motor rotates to drive the planetary reducer to drive the slewing bearing to rotate; the multi-degree-of-freedom adjustment gripper is connected to the slewing bearing and rotates with the slewing bearing.

[0023] The multi-degree-of-freedom adjustment gripper includes telescopic adjustment oil cylinders and an installation gripper. There are two telescopic adjustment oil cylinders, and the two telescopic adjustment oil cylinders are connected in parallel between the rotary installation head and the installation gripper. The two telescopic adjustment oil cylinders extend and retract to drive the installation gripper to extend and retract or rotate laterally. The installation gripper is detachably connected to the lining segment by bolts.

[0024] Compared with the prior art, the technical solution provided by the present invention has the following advantages: 1. The construction process provided by the present invention can realize the transportation, installation, and support of a multi-piece assembled tunnel lining for a single ring. The entire construction process has a high degree of automation, high assembling accuracy, high efficiency, and safe and stable assembling.

[0025] 2. In the present invention, the installation sequence is to install symmetrically and staggeredly from the bottom upwards, and the last lining segment at the arch part is inserted and installed, meeting the installation accuracy requirements of the lining segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the multi-piece assembled tunnel lining assembling equipment provided by the present invention;

[0027] Figure 2 It is a schematic structural diagram of the connection between the assembling trolley and the lining segment in the present invention;

[0028] Figure 3 It is a schematic structural diagram of the assembling trolley in the present invention;

[0029] Figure 4 Schematic structural diagram of the assembled frame and assembled traveling mechanism of the assembled trolley in the present invention;

[0030] Figure 5 Schematic connection diagram of the rotary mounting head and the mounting trolley in the present invention;

[0031] Figure 6 Schematic structural diagram of the pressing trolley in the present invention;

[0032] Figure 7 Schematic structural diagram of the sheet feeding device in the present invention;

[0033] Figure 8 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 1 ;

[0034] Figure 9 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 2 ;

[0035] Figure 10 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 3 ;

[0036] Figure 11 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 4 ;

[0037] Figure 12 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 5 ;

[0038] Figure 13 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 6 ;

[0039] Figure 14 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 7 ;

[0040] Figure 15 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 8 ;

[0041] Figure 16 Construction schematic of the single - ring multi - block tunnel lining assembling equipment provided by the present invention Figure 9 ;

[0042] Figure 17 Construction process flow chart of the single - ring multi - block tunnel lining assembling equipment provided by the present invention;

[0043] In the figure: 100 - lining segment, 200 - tunnel;

[0044] 1 - assembling trolley, 11 - assembling frame, 111 - arched gantry A, 112 - longitudinal beam A, 12 - assembling traveling mechanism, 121 - traveling track A, 13 - circular track, 131 - track beam, 132 - traveling wheel set, 14 - installation trolley, 15 - lining segment installing machine, 151 - rotary installation head, 1511 - slewing bearing, 1512 - planetary reducer, 152 - multi - degree - of - freedom adjusting gripper, 1521 - telescopic adjusting oil cylinder, 1522 - installation gripper, 16 - longitudinal movement mechanism, 161 - longitudinal movement track, 162 - longitudinal movement wheel set;

[0045] 2 - pressing trolley, 21 - pressing frame, 22 - pressing traveling mechanism, 23 - pressing oil cylinder, 24 - lining segment fixing block;

[0046] 3 - slice feeding device, 31 - transmission track, 32 - lifting and rotating mechanism; 4 - transport vehicle, 5 - transfer gantry crane. Detailed implementation mode

[0047] The following will make a detailed and specific description of the present invention in conjunction with the accompanying drawings.

[0048] When installing the tunnel lining, a complete ring of tunnel 200 lining can be divided into multiple lining segments 100 for assembly. In this embodiment, a single - ring nine - segment tunnel lining is taken as an example, and the nine lining segments are assembled into a complete ring of tunnel lining through the provided single - ring multi - segment tunnel lining assembly equipment. The assembly equipment mainly includes an assembling trolley 1, a pressing trolley 2 and a slice feeding device 3, as Figure 1 shown. The slice feeding device transfers the lining segment to the lower part of the assembling trolley, and the lining segment is assembled through the assembling trolley, while the pressing trolley is used to assist in the installation.

[0049] The assembling trolley includes an assembling frame 11, an assembling traveling mechanism 12, a circular track 13, an installation trolley 14, a lining segment installing machine 15 and an electric - hydraulic unit (not shown in the figure), as Figure 2 and Figure 3 shown. Among them, the assembling frame is a gantry - shaped frame structure, including two arched gantries A 111 arranged parallel in the front and back and multiple longitudinal beams A 112 distributed and connected between the two arched gantries A. In this embodiment, six longitudinal beams A are symmetrically distributed, as Figure 4 shown. The assembling traveling mechanism is connected to the bottom of the assembling frame. Specifically, the assembling traveling mechanism is a wheel - rail traveling structure, including 2 groups of driving traveling wheel sets and 2 groups of driven traveling wheel sets installed at the bottom of the assembling frame and a traveling track A 121 installed on the ground in the tunnel. The assembling trolley travels on the traveling track A, so as to move in the tunnel.

[0050] The annular track is horizontally installed above the assembled vehicle frame. In this embodiment, the annular track is installed above the assembled vehicle frame through the longitudinal movement mechanism 16, enabling the annular track to move longitudinally along the assembled vehicle frame. Specifically, the longitudinal movement mechanism can be a driving structure such as a sprocket, including a plurality of longitudinally arranged longitudinal movement tracks 161 fixedly distributed on the assembled vehicle frame and multiple groups of longitudinal movement wheel sets 162 distributed and connected to the bottom of the annular track. The number and distribution positions of the longitudinal movement wheel sets match those of the longitudinal movement tracks. The longitudinal movement wheel sets are installed on the longitudinal movement tracks, causing the annular track to move longitudinally along the assembled vehicle frame. See Figure 3 . Here, the number and positions of the longitudinal movement tracks match those of the longitudinal beams A of the assembled gantry. That is, there are six longitudinally movement tracks symmetrically distributed, and six groups of longitudinal movement wheel sets are distributed on the annular track. The annular track consists of two arc-shaped track beams 131. Therefore, each group of longitudinal movement wheel sets includes two longitudinal movement wheel sets, corresponding to the two track beams respectively.

[0051] The installation trolley is installed on the annular track and travels along the annular track. Specifically, the installation trolley can travel along the annular track through driving means such as gears. The bottom of the installation trolley is connected with a traveling wheel set 132, and the traveling wheel set is installed on the track beam and travels along the track beam.

[0052] The lining segment installation machine is fixed on the side of the installation trolley near the tunnel entrance. The lining segment installation machine includes a rotary mounting head 151 and a multi-degree-of-freedom adjustment gripper 152 connected in sequence.

[0053] Among them, the rotary mounting head is connected to the installation trolley, as Figure 5 shown. Specifically, the rotary mounting head includes a driving motor (not shown in the figure), a planetary reducer 1512, and a slewing bearing 1511. The planetary reducer is fixed on the installation trolley, the driving motor is installed at the input end of the planetary reducer, and the slewing bearing is rotatably sleeved on the output end of the planetary reducer. Specifically, the slewing bearing and the planetary reducer are connected by means of gear meshing. When the driving motor rotates, the planetary reducer drives the slewing bearing to rotate; the multi-degree-of-freedom adjustment gripper is connected to the slewing bearing and rotates horizontally around the installation trolley along with the slewing bearing. Figure 2 In Figure 3 , the lining segment installation machine rotates until the multi-degree-of-freedom adjustment gripper faces downward,

[0054] In this embodiment, the multi-degree-of-freedom adjustment gripper includes a telescopic adjustment oil cylinder 1521 and a mounting gripper 1522, as shown in Figure 2 , where there are two telescopic adjustment oil cylinders. The two telescopic adjustment oil cylinders are connected in parallel between the slewing mounting head and the mounting gripper. The stroke of the two telescopic adjustment oil cylinders is 1000 mm. The two telescopic adjustment oil cylinders extend and retract simultaneously to drive the mounting gripper to extend and retract. When the two telescopic adjustment oil cylinders extend and retract in a staggered manner, they drive the mounting gripper to rotate horizontally. Therefore, the lining segment installation machine can only adjust the height and horizontal position of the lining segment. Therefore, through the slewing and adjustment of the slewing mounting head and the multi-degree-of-freedom adjustment gripper, the movement of the installation trolley, and the longitudinal movement of the annular track, the lining segment is jointly positioned at the position to be installed. The mounting gripper is detachably connected to the lining segment by bolts.

[0055] The compressing trolley is located in front of the assembling trolley, that is, at the end close to the tunnel entrance. The compressing trolley includes a compressing frame 21, a compressing traveling mechanism 22, compressing oil cylinders 23, and an electro-hydraulic unit (not shown in the figure), as shown in Figure 6 . Among them, the compressing frame is also a gantry frame structure, including two arched gantries B arranged in parallel front and back and multiple longitudinal beams B distributed and connected between the two arched gantries B. The compressing traveling mechanism is installed at the bottom of the compressing frame. Specifically, the compressing traveling mechanism is also a wheel-rail traveling structure, including 2 groups of driving traveling wheel sets and 2 groups of driven traveling wheel sets installed at the bottom of the compressing frame and a traveling track B installed on the ground in the tunnel. The compressing trolley travels on the traveling track B, so as to move in the tunnel. Specifically, the assembling trolley and the compressing trolley can share a set of traveling tracks, or they can be provided with traveling tracks separately.

[0056] The compressing oil cylinders are distributed longitudinally and fixed on the compressing frame, and the number and positions of the compressing oil cylinders match the number and positions of multiple lining segments in one ring. Therefore, in this embodiment, there are nine compressing oil cylinders corresponding to be provided. The compressing oil cylinders extend and retract to compress the just-installed lining segment from the side. The stroke of the compressing oil cylinders is 1000 mm. Specifically, a lining segment fixing block 24 is connected to the end of the compressing oil cylinder close to the lining segment. The lining segment fixing block is L-shaped, as shown in Figure 6 . When the compressing oil cylinder compresses the lining segment, the lining segment fixing block presses on the middle position of the bottom and the front side of the lining segment, and the lining segment fixing block is perpendicular to the lining segment, as shown in Figure 12 .

[0057] The sheet feeding device is located on the side of the assembling trolley and the compressing trolley. The sheet feeding device includes a transmission track 31 arranged longitudinally and a jacking and rotating mechanism 32 distributed and connected to the transmission track, as shown in Figure 7As shown in the figure. In this embodiment, there are four jacking and rotating mechanisms distributed on the transfer track, so the sheet feeding device can transport 4 lining sheets at a time. The lining sheets are placed on the jacking and rotating mechanisms and move on the transfer track along with the jacking and rotating mechanisms. Due to limited space, the lining sheets are placed longitudinally when on the jacking and rotating mechanisms. When the lining sheets move to the lower side of the assembly trolley, the jacking and rotating mechanisms rotate 90°, causing the lining sheets to be placed transversely. The jacking and rotating mechanisms lift the lining sheets, and the lining sheet installation machine is connected to the lining sheets, thus continuously feeding the lining sheets to the assembly trolley.

[0058] Specifically, the lining sheets are transported from the pre-installation site outside the tunnel to the inside of the tunnel by the transport vehicle 4, and then lifted and transferred to the sheet feeding device by the transfer gantry crane 5. The transport vehicle and the transfer gantry crane are both conventional existing technologies, and their structures will not be introduced in detail here.

[0059] In this embodiment, each ring of tunnel lining is assembled by one lining sheet for the arch part and eight lining sheets symmetrically distributed on the sides. The width of the lining sheet is 1.5 m, and the chord length of each lining sheet is about 3 m. The lining sheet for the arch part is a wedge-shaped block, the lining sheet adjacent to the arch part is approximately trapezoidal, and the remaining lining sheets are approximately rectangular. The weight of the lining sheet is not more than 6 t. When the single-ring multi-piece tunnel lining assembly equipment installs the tunnel lining, it is installed symmetrically and staggeredly from the bottom upwards, and the last lining sheet for the arch part is inserted and installed longitudinally.

[0060] Specifically, the construction process is as follows:

[0061] S1. Move the assembly trolley to the installation position for preliminary positioning, and longitudinally move the circular track so that the lining sheet installation machine is located directly below the ring of tunnel lining to be installed, as Figure 8 shown;

[0062] S2. Transport the lining sheet to be installed to the position below the side of the assembly trolley; the transportation of the lining sheet to be installed is jointly completed by the transport vehicle, the transfer gantry crane and the sheet feeding device.

[0063] Specifically, the transport vehicle can transport nine lining sheets of one ring from the pre-installation site outside the tunnel to the inside of the tunnel at a time. The transfer gantry crane places the lining sheets to be installed first on the sheet feeding device according to the installation sequence, and places the lining sheets to be installed later in the temporary storage area. The lining sheets are placed longitudinally on the jacking and rotating mechanisms of the sheet feeding device. When the lining sheets move to the lower side of the assembly trolley, the jacking and rotating mechanisms rotate 90°, causing the lining sheets to be placed transversely, as Figure 8 and 9 shown.

[0064] S3. The installation trolley on the assembly trolley moves, and the lining sheet installation machine rotates and extends to adjust to above the lining sheet to be installed, and connects the lining sheet installation machine to the lining sheet to be installed, as Figure 10As shown, specifically, the jacking and rotating mechanism jacks up the lining segment, and the installation grab is detachably connected to the lining segment by bolts.

[0065] S4. The installation trolley moves, bringing the lining segment closer to the installation position. At the same time, the lining segment installation machine rotates and extends for fine adjustment to position the lining segment to be installed at the installation position, as Figure 11 shown; disconnect the connection between the lining segment installation machine and the lining segment, and at the same time press the lining segment tightly by the pressing trolley, as Figure 12 shown.

[0066] S5. Install the bolts between the lining segment to be installed and the adjacent lining segment;

[0067] S6. Install another lining segment according to steps S2 - S5. The installation sequence is symmetrically and staggeredly installed from bottom to top until only the last arch lining segment remains; in this embodiment, the first lining segment in the lower right is installed first, then the first lining segment in the lower left is installed, and so on, that is, the lining segments of right one, left one, right two, left two, right three, left three, right four, and left four are installed and pressed in sequence, as Figure 13 and 14 shown.

[0068] S7. The annular track longitudinally moves forward by the width of one ring of tunnel lining, and then according to steps S2 - S4, position the last arch lining segment directly in front of the installation position. The annular track moves backward, and insert the lining segment into the installation position, as Figure 15 and 16 shown. Connect the bolts, and the installation of one ring of tunnel lining is completed;

[0069] S8. Move the assembly trolley to the installation position of the next ring for the installation of the next ring of tunnel lining, and cycle in sequence to complete the tunnel lining assembly construction. At the same time, move the pressing trolley, and if necessary, move the transfer gantry crane and the slice feeding device. After every 8 rings (12m) of tunnel lining assembly are completed, grouting and backfilling are carried out once. The entire construction process flow chart is as Figure 17 shown.

Claims

1. Construction process of a single-ring multi-block tunnel lining assembling device, characterized in that: The tunnel lining of each ring is assembled by multiple lining segments. The lining segments are installed by an erection trolley. When installing the lining segments, they are symmetrically and staggeredly installed from the bottom upwards. The last lining segment at the arch is inserted and installed longitudinally. The erection trolley includes an erection frame, an erection traveling mechanism, a circular track, an installation carriage, and a lining segment installation machine. Among them, the erection traveling mechanism is installed at the bottom of the erection frame. The circular track is installed above the erection frame along the transverse direction through a longitudinal movement mechanism, enabling the circular track to move longitudinally along the erection frame. The installation carriage is installed on the circular track and travels along the circular track. The lining segment installation machine is fixed on the side of the installation carriage near the tunnel entrance. The lining segment installation machine includes a rotary installation head and a multi-degree-of-freedom adjustment gripper connected in sequence. The rotary installation head is connected to the installation carriage and rotates horizontally around the installation carriage. The multi-degree-of-freedom adjustment gripper is connected to the lining segment and adjusts the position of the lining segment with multiple degrees of freedom. The specific construction process is as follows: S1. Move the erection trolley to the installation position for preliminary positioning. The circular track moves longitudinally so that the lining segment installation machine is located directly below the ring of tunnel lining to be installed. S2. Transport the lining segment to be installed to the position below the side of the erection trolley. S3. The installation carriage on the erection trolley moves. At the same time, the lining segment installation machine rotates and adjusts to above the lining segment to be installed, and connects the lining segment installation machine with the lining segment to be installed. S4. The installation carriage moves. At the same time, the lining segment installation machine rotates and adjusts to position the lining segment to be installed at the installation position. S5. Install the bolts between the lining segment to be installed and the adjacent lining segments. S6. Install another lining segment according to steps S2 to S5. The installation sequence is symmetrically and staggeredly installed from the bottom upwards until only the last lining segment at the arch remains. S7. The circular track longitudinally moves forward by the width of one ring of tunnel lining. The "forward" direction is towards the tunnel entrance. Then, according to steps S2 to S4, position the last lining segment at the arch directly in front of the installation position. The circular track moves longitudinally backward, insert the lining segment into the installation position, and connect the bolts. One ring of tunnel lining is installed. S8. Move the erection trolley to the installation position of the next ring to install the next ring of tunnel lining, and cycle in sequence to complete the tunnel lining assembly construction.

2. The construction process of the single-ring multi-block tunnel lining assembly equipment according to claim 1, characterized in that: After completing the assembly of 8 rings of tunnel lining, perform grouting and backfilling once.

3. The construction process of the single-ring multi-block tunnel lining assembly equipment according to claim 1, characterized in that: After the lining segment is positioned at the installation position in steps S4, S6, and S7, disconnect the connection between the lining segment installation machine and the lining segment. At the same time, press the lining segment with a pressing trolley, and then connect the bolts between the lining segments.

4. The construction process of the single-ring multi-block tunnel lining assembling equipment according to claim 3, characterized in that: The pressing trolley is positioned in front of the erection trolley. The pressing trolley includes a pressing frame, a pressing traveling mechanism, and pressing cylinders. The pressing traveling mechanism is installed at the bottom of the pressing frame. The pressing cylinders are distributed longitudinally and fixed on the pressing frame. The number and positions of the pressing cylinders match the number and positions of the multiple lining segments in one ring. The pressing cylinders expand and contract to press the newly installed lining segment from the side.

5. The construction process of the single-ring multi-block tunnel lining assembly equipment according to claim 1, characterized in that: In step (2), the transportation of the lining segment to be installed is jointly completed by a transport vehicle, a transfer gantry crane, and a feeding device.

6. The construction process of the single-ring multi-block tunnel lining assembling equipment according to claim 5, characterized in that: The said sheet feeding device stands on the side edges of the assembling trolley and the pressing trolley. The sheet feeding device includes a transmission track arranged longitudinally and a jacking and rotating mechanism distributed and connected to the transmission track.

7. The construction process of the single-ring multi-block tunnel lining assembly equipment according to claim 1, characterized in that: The said rotary mounting head includes a driving motor, a planetary reducer and a slewing bearing. The planetary reducer is fixed on the mounting trolley, the driving motor is installed on the input end of the planetary reducer, and the slewing bearing is rotatably sleeved on the output end of the planetary reducer. When the driving motor rotates, the planetary reducer drives the slewing bearing to rotate; The multi-degree-of-freedom adjustment gripper is connected to the slewing bearing and rotates with the slewing bearing.

8. The construction process of the single-ring multi-block tunnel lining assembly equipment according to claim 1, characterized in that: The said multi-degree-of-freedom adjustment gripper includes telescopic adjustment cylinders and a mounting gripper. There are two telescopic adjustment cylinders, and the two telescopic adjustment cylinders are parallelly connected between the rotary mounting head and the mounting gripper. When the two telescopic adjustment cylinders expand and contract, they drive the mounting gripper to expand and contract or rotate horizontally. The mounting gripper is detachably connected to the lining segment by bolts.

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