Method, device, equipment and readable storage medium for dismantling support of ultra-large-span tunnel

Abstract

The present invention provides a method, device, equipment and readable storage medium for dismantling support for a super-large span tunnel, and relates to the technical field of tunnel construction, including sending a first command to vertically place a jacking device in a super-large span tunnel; obtaining first information, the first information including characteristic parameters of surrounding rock materials, characteristic parameters of lining materials and structural parameters of secondary lining temporary support; establishing a hydraulic adjustment mathematical model based on the first information, solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, the multi-stage hydraulic output information being information on the output force of the hydraulic device of the jacking device that needs to be adjusted in a preset secondary lining temporary support dismantling method; sending a second command based on the multi-stage hydraulic output information, the second command including a command to dismantle the secondary lining temporary support and adjust the jacking device to support the super-large span tunnel, and during the dismantling of the secondary lining temporary support, the super-large span tunnel remains stable under the support of the jacking device.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a method, device, equipment and readable storage medium for dismantling support for an ultra-large-span tunnel. Background Art

[0002] With the large-scale development and utilization of underground space, extra-large span and ultra-large span tunnel projects are becoming more and more numerous and have become a hot topic in the current engineering research community, attracting a large number of scholars to conduct research on them from different angles.

[0003] Affected by the size effect of rock mass structure, large-span tunnels are prone to large-scale collapse. If only the secondary lining is used to support the entire surrounding rock load, it is difficult to meet the requirements of surrounding rock stability. Therefore, the three-lining construction method is currently proposed, but the biggest risk of the actual three-lining construction method is the construction process of removing the temporary support of the secondary lining inside the tunnel and pouring the reinforced concrete of the third lining. However, there is currently no safe method for removing the temporary support of the secondary lining. Summary of the invention

[0004] The purpose of the present invention is to provide a method, device, equipment and readable storage medium for removing support for a super-long-span tunnel to improve the above-mentioned problems. In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present application provides a method for dismantling support for a super-large-span tunnel, comprising:

[0006] Sending a first command, wherein the first command includes a command to vertically place a jacking device in a super-long-span tunnel;

[0007] Acquire first information, wherein the first information includes characteristic parameters of surrounding rock materials, characteristic parameters of lining materials, and structural parameters of secondary lining temporary support, wherein the structural parameters of the secondary lining temporary support include the overall structure of the secondary lining temporary support and material characteristic parameters of the secondary lining temporary support;

[0008] Establishing a hydraulic adjustment mathematical model based on the first information, solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, wherein the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device of the jacking device in the preset secondary lining temporary support removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence;

[0009] Based on the multi-stage hydraulic output information, a second command is sent, which includes a command to remove the temporary support of the second lining and adjust the jacking device to support the super-large span tunnel. During the removal of the temporary support of the second lining, the super-large span tunnel remains stable under the support of the jacking device.

[0010] Further: the establishing of a hydraulic adjustment mathematical model based on the first information, and solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, includes:

[0011] Calculate and obtain the multi-stage hydraulic output information based on the first information;

[0012] According to the multi-stage hydraulic output information, the amplified multi-stage hydraulic output information is calculated according to a preset amplification coefficient, and the multi-stage hydraulic output information is updated to the amplified multi-stage hydraulic output information.

[0013] Further: the calculation based on the first information and the hydraulic parameter information to obtain multiple sections of hydraulic output information includes:

[0014] Acquiring structural information of the jacking device and parameter information of the hydraulic device;

[0015] Drawing a construction simulation three-dimensional model based on the structural information of the jacking device and the first information;

[0016] The temporary support of the second lining in the construction simulation three-dimensional model is removed in sections according to a preset temporary support removal process, and second information is obtained by analysis, wherein the second information includes force information of the jacking device during the multi-stage removal of the temporary support of the second lining in the construction simulation three-dimensional model;

[0017] The multi-stage hydraulic output information is calculated based on the second information and the hydraulic device parameter information.

[0018] Further: sending a second command based on the multi-stage hydraulic output information includes:

[0019] Sending a preparation for demolition command, wherein the preparation for demolition command includes a command to adjust the output force of the hydraulic device, and the jacking device contacts the top and bottom of the super-long span tunnel under the output force of the hydraulic device;

[0020] Sending a fifth command, wherein the fifth command includes a command for removing the temporary support of the second lining according to a preset temporary support removal method;

[0021] During the removal of the temporary support of the second lining, fourth information is obtained in real time, and the output force of the hydraulic device is adjusted based on the fourth information and the multi-stage hydraulic output information until the temporary support of the second lining is removed. The fourth information includes pressure value information collected by a pressure sensor, and the pressure sensor is arranged on the top of the jacking device.

[0022] In a second aspect, the present application also provides a super-large-span tunnel support removal device, comprising:

[0023] A first command sending unit, used to send a first command, wherein the first command includes a command to vertically place a jacking device in a super-long-span tunnel;

[0024] a first acquisition unit, configured to acquire first information, wherein the first information includes characteristic parameters of surrounding rock materials, characteristic parameters of lining materials, and structural parameters of secondary lining temporary support, wherein the structural parameters of the secondary lining temporary support include the overall structure of the secondary lining temporary support and material characteristic parameters of the secondary lining temporary support;

[0025] a hydraulic adjustment calculation unit, configured to establish a hydraulic adjustment mathematical model based on the first information, and solve the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, wherein the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device of the jacking device in the preset secondary lining temporary support removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence;

[0026] The second command sending unit is used to send a second command based on the multi-stage hydraulic output information, wherein the second command includes a command to remove the temporary support of the second lining and adjust the jacking device to support the super-large span tunnel. During the removal of the temporary support of the second lining, the super-large span tunnel remains stable under the support of the jacking device.

[0027] Furthermore, the hydraulic adjustment calculation unit includes:

[0028] A hydraulic output calculation unit, configured to calculate the multi-stage hydraulic output information based on the first information;

[0029] The first adjustment unit is used to calculate the amplified multi-stage hydraulic output information according to the multi-stage hydraulic output information according to a preset amplification coefficient, and update the multi-stage hydraulic output information to the amplified multi-stage hydraulic output information.

[0030] Furthermore, the hydraulic output calculation unit comprises:

[0031] A second acquisition unit is used to acquire the structural information of the jacking device and the parameter information of the hydraulic device;

[0032] A three-dimensional model building unit, used for drawing a construction simulation three-dimensional model based on the structural information of the jacking device and the first information;

[0033] The simulation construction unit is used to remove the temporary support of the second lining in the construction simulation three-dimensional model in sections according to the preset temporary support removal process, and analyze to obtain second information, wherein the second information includes the force information of the jacking device during the multi-stage removal of the temporary support of the second lining in the construction simulation three-dimensional model;

[0034] The first sub-calculation unit is used to calculate and obtain multi-stage hydraulic output information according to the second information and the hydraulic device parameter information.

[0035] Furthermore, the second command sending unit includes:

[0036] A preparation unit, used for sending a preparation command for demolition, wherein the preparation command for demolition includes a command for adjusting the output force of the hydraulic device, and the jacking device is in conflict with the top and bottom of the super-long-span tunnel under the output force of the hydraulic device;

[0037] A fifth command sending unit, used to send a fifth command, wherein the fifth command includes a command to remove the temporary support of the second lining according to a preset temporary support removal method;

[0038] A real-time adjustment unit is used to obtain fourth information in real time during the removal of the temporary support of the second lining, and adjust the output force of the hydraulic device based on the fourth information and the multi-stage hydraulic output information until the temporary support of the second lining is removed. The fourth information includes pressure value information collected by a pressure sensor, and the pressure sensor is arranged on the top of the jacking device.

[0039] In a third aspect, the present application also provides a super-large-span tunnel support removal device, comprising:

[0040] Memory for storing computer programs;

[0041] A processor is used to implement the steps of the super-large span tunnel support removal method when executing the computer program.

[0042] In a fourth aspect, the present application further provides a readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above-mentioned method for dismantling support for ultra-large span tunnels are implemented.

[0043] The beneficial effects of the present invention are:

[0044] The method obtains relevant structural information and relevant material information of the construction environment in advance, constructs a three-dimensional model to perform a theoretical secondary lining temporary support removal process, and analyzes the output force of the hydraulic device in the jacking device of the required embodiment 1, thereby guiding the actual secondary lining temporary support removal process, reducing the process of manual adjustment based on experience, and making the adjustment of the hydraulic equipment more accurate; and in the actual removal process, pre-adjusting the output force of the hydraulic equipment through advance data transition, reduces the possibility of unsafe conditions during the secondary lining temporary support removal process.

[0045] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 This is a schematic diagram of the embodiment 1 of the present invention when it is arranged in a super-long span tunnel;

[0048] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0049] Figure 3 It is a schematic diagram of the process of the super-large-span tunnel support removal method described in an embodiment of the present invention;

[0050] Figure 4 It is a structural schematic diagram of the super-large-span tunnel support and removal device described in an embodiment of the present invention;

[0051] Figure 5 It is a schematic diagram of the structure of the ultra-large span tunnel support and removal equipment described in an embodiment of the present invention.

[0052] Markings in the figure: 1, first command sending unit; 2, first acquisition unit; 3, hydraulic adjustment calculation unit; 31, hydraulic output calculation unit; 311, second acquisition unit; 312, three-dimensional model building unit; 313, simulation construction unit; 314, first sub-calculation unit; 32, first adjustment unit; 4, second command sending unit; 41, preparation unit; 411, third acquisition unit; 412, pre-adjustment unit; 42, fifth command sending unit; 43, real-time adjustment unit; 431, fourth acquisition unit; 43 2. Warning threshold calculation unit; 433. First screening unit; 434. Second screening unit; 435. Output real-time adjustment unit; 5. Lifting device; 51. Top plate; 511. Pressure sensor; 52. Upper support rod; 53. Hydraulic device; 54. Lower support rod; 55. Bottom plate; 6. Second lining temporary support; 7. Locking foot anchor rod; 800. Ultra-large span tunnel support and dismantling equipment; 801. Processor; 802. Memory; 803. Multimedia component; 804. Input / output (I / O) interface; 805. Communication component. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0055] Embodiment 1:

[0056] See also Figure 1 In this embodiment, a jacking device 5 is provided, which is used to support the stability of the super-large span tunnel when the temporary support 6 of the secondary lining of the super-large span tunnel is removed. The jacking device 5 is fixedly connected with a top plate 51, an upper support rod 52, a hydraulic device 53, a lower support rod 54, and a bottom plate 55 in sequence from top to bottom. The top plate 51 is arc-shaped to fit the top of the super-large span tunnel and provide a larger support surface on the top, thereby reducing the pressure of the top plate 51 on the super-large span tunnel and reducing damage to the super-large span tunnel. Protect the secondary lining of the super-large span tunnel from damage during the removal process. It should be noted that the hydraulic device 53 mentioned in this embodiment is preferably a hydraulic jack.

[0057] During the removal of the temporary support 6 of the second lining of the super-large span tunnel, if a stick is directly used to support the inside of the super-large span tunnel, the object will be deformed under the action of external force, and the corresponding second lining will be deformed in structure, so that the structure of the super-large span tunnel will be changed, which is not conducive to the safety of the later construction of the super-large span tunnel. In this embodiment, a hydraulic device 53 is added to adjust the length of the embodiment, and the pressure provided by the original temporary support 6 of the second lining can be maintained during the removal of the temporary support 6 of the second lining. Figure 2 , Figure 2This is the layout diagram of this embodiment in actual construction. Specifically, in order to solve the above problems, in this embodiment, in order to maintain the pressure provided by the second lining temporary support 6 during the removal of the second lining temporary support 6, a pressure sensor 511 is provided on the top plate 51. Specifically, the pressure sensor 511 contacts the second lining temporary support 6 to transmit back the pressure value information of the top plate 51 and the second lining temporary support 6. The output force of the hydraulic device 53 is adjusted and controlled by the pressure value information, so as to maintain the pressure provided by the second lining temporary support 6 during the removal of the second lining temporary support 6, and ensure the stress on the vault of the super-large span tunnel. At the same time, it can reduce the possibility of danger to the super-large span tunnel caused by the removal of the second lining temporary support 6 when the second lining has not reached the standard hardening state, and effectively improve the safety of construction in the super-large span tunnel.

[0058] Embodiment 2:

[0059] This embodiment provides a method for dismantling support for a super-large-span tunnel.

[0060] See also Figure 1 , the figure shows that the method includes step S100, step S200, step S300, step S400 and step S500.

[0061] S100, sending a first command, the first command including a command to vertically place the jacking device 5 in the super-long span tunnel;

[0062] It can be understood that the lifting device 5 mentioned in this step is the lifting device 5 in Example 1.

[0063] S200, obtaining first information, the first information including characteristic parameters of surrounding rock materials, characteristic parameters of lining materials and structural parameters of the secondary lining temporary support 6, the structural parameters of the secondary lining temporary support 6 including the overall structure of the secondary lining temporary support 6 and material characteristic parameters of the secondary lining temporary support 6;

[0064] It is understandable that the surrounding rock material characteristic parameters mentioned in this step include the density of the surrounding rock, the Young's modulus of the surrounding rock, the Poisson's ratio of the surrounding rock, the internal friction angle of the surrounding rock and the cohesion of the surrounding rock. The lining material characteristic parameters include the density of the lining, the Young's modulus of the lining, the Poisson's ratio of the lining, the compressive yield stress of the lining and the tensile yield stress of the lining. The overall structure of the second lining temporary support 6 includes the connection relationship between each component in the overall structure of the second lining temporary support 6, the size of each component and the size structure of each component to achieve the modeling of the second lining temporary support 6 in the three-dimensional software. The material characteristic parameters of the second lining temporary support 6 include the Young's modulus of the lining, the Poisson's ratio of the lining, the compressive yield stress of the lining and the tensile yield stress of the lining.

[0065] S300, establishing a hydraulic adjustment mathematical model based on the first information, solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device 53 of the jacking device 5 in the preset secondary lining temporary support 6 removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence;

[0066] It can be understood that in this step, the output force of the hydraulic device 53 is obtained by performing three-dimensional modeling simulation calculation based on the information obtained in step S200.

[0067] Specifically, this step includes step S310 and step S320 to achieve the above purpose.

[0068] S310, calculating and obtaining multi-stage hydraulic output information based on the first information;

[0069] It should be noted that in this step, steps S311, S312, S313 and S314 are performed.

[0070] S311, obtaining structural information of the lifting device 5;

[0071] It should be noted that the structural information of the lifting device 5 mentioned in this step refers to the size of each component in the lifting device 5, the connection relationship between each component, the density of each component, the Young's modulus of each component, the Poisson's ratio of each component and other information.

[0072] S312, drawing a construction simulation three-dimensional model based on the structural information of the jacking device 5 and the first information;

[0073] It can be understood that in this embodiment, a three-dimensional model is built by using the first information and the structural information of the lifting device 5. For those skilled in the art, ABAQUS / CAE software can be used for implementation, and other software can also be used, and no specific limitation is made in this application.

[0074] S313, dismantling the temporary support 6 of the second lining in sections in the construction simulation three-dimensional model according to the preset dismantling process of the temporary support 6 of the second lining, and analyzing to obtain second information, the second information including the force information of the jacking device 5 during the multi-stage dismantling of the temporary support 6 of the second lining in the construction simulation three-dimensional model;

[0075] It should be noted that the preset secondary lining temporary support 6 removal process mentioned in this step is the secondary lining temporary support 6 removal process in the construction of super-large span tunnels, which is common knowledge in the art and will not be repeated in this step. However, the preset secondary lining temporary support 6 removal process mentioned in this implementation is preferably removed from the bottom and gradually removed to the top of the super-large span tunnel.

[0076] It should also be noted that the multi-stage removal process of the secondary lining temporary support 6 mentioned in this step is that the entire removal process of the secondary lining temporary support 6 is divided into four stages in this embodiment. Figure 2 illustrate:

[0077] The first stage: the first component of the secondary lining temporary support 6 is removed. Specifically, the area to be removed is located at the bottom of the super-long span tunnel. The reason is that when the secondary lining temporary support 6 structure at the bottom is destroyed, the secondary lining temporary support 6 structure at both ends of the super-long span tunnel can also provide partial support for the secondary lining temporary support 6 located at the arc-shaped part of the super-long span tunnel, thereby achieving the arch support for the super-long span tunnel. That is, it is defined as the first stage in this embodiment:

[0078] The second stage: when one of the locking anchor rods 7 of the temporary secondary lining support 6 located on both sides of the super-large span tunnel is removed, the supporting force of the temporary secondary lining support 6 on the super-large span tunnel is further reduced, which is defined as the second stage in this embodiment;

[0079] The third stage: when the other locking anchor rod 7 of the second lining temporary support 6 located on both sides of the super-large span tunnel is removed, the supporting force of the second lining temporary support 6 on the super-large span tunnel is further reduced, which is defined as the third stage in this embodiment;

[0080] The fourth stage: when the secondary lining temporary support 6 is completely removed, since the difference between the third stage and the second stage and the difference between the second stage and the first stage is a downward trend, when it is completely removed, the force on the jacking device 5 reaches the maximum value, but the difference between the remaining third stages is small, and considering that the theoretical simulation calculation cannot completely simulate the real thing, it is defined as the fourth stage in this embodiment as the final safety guarantee stage, so as to realize the safe removal of the secondary lining temporary support 6 in combination with the subsequent steps.

[0081] S314, calculating and obtaining multi-stage hydraulic output information according to the second information and parameter information of the hydraulic device 53.

[0082] It should be noted that the parameter information of the hydraulic device 53 mentioned in this embodiment refers to the information on how the hydraulic device 53 performs hydraulic adjustment after receiving the electrical signal, which is the setting content of the hydraulic device 53 manufacturer, and how it is calculated through the force information of the jacking device 5 is the factory setting of the manufacturer, and it is not the focus of this application, and will not be repeated in this embodiment.

[0083] S320, according to the multi-stage hydraulic output information, calculate the amplified multi-stage hydraulic output information according to the preset amplification coefficient, and update the multi-stage hydraulic output information to the amplified multi-stage hydraulic output information.

[0084] It should be noted that since S310 calculates the multi-stage hydraulic output information bit theoretical calculation results, the real environment cannot be simulated in actual construction, and various unexpected situations may occur, which makes the calculation results of S310 inconsistent with the actual situation. Therefore, in order to further ensure the construction safety in super-large span tunnels, in this implementation, it is necessary to modify the calculation results of S310 to make them greater than the calculation results. In this embodiment, the preset amplification coefficient is preferably 108%.

[0085] S400. Based on the multi-stage hydraulic output information, a second command is sent, where the second command includes a command to remove the temporary support 6 of the second lining and adjust the jacking device 5 to support the super-large span tunnel. During the removal of the temporary support 6 of the second lining, the super-large span tunnel remains stable under the support of the jacking device 5.

[0086] It should be noted that the purpose of this step is to enable the lifting device 5 to realize intelligent adjustment during the removal of the secondary lining temporary support 6, so that the ultra-large span tunnel can remain stable during the entire process, thereby ensuring the construction safety of the ultra-large span tunnel.

[0087] Specifically, this step includes step S410, step S420 and step S430 to achieve the above purpose.

[0088] S410, sending a preparation for demolition command, the preparation for demolition command including a command to adjust the output force of the hydraulic device 53, the jacking device 5 is in conflict with the top and bottom of the super-long-span tunnel under the output force of the hydraulic device 53;

[0089] It should be noted that this step is to prepare for the subsequent removal of the secondary lining temporary support 6, specifically, to protect the structural stability of the super-large span tunnel. Specifically, this step includes step S411 and step S412.

[0090] S411, obtaining third information, where the third information includes pressure value information collected by the pressure sensor 511 at the current moment;

[0091] It should be noted that this step is carried out in conjunction with the pressure sensor 511 provided on the lifting device 5 in order to determine the current state of the lifting device 5 .

[0092] S412. If the third information is not equal to the minimum output force in the multi-stage hydraulic output information, a third command is sent, the third command including adjusting the lifting device 5 until the pressure value is equal to the minimum output force in the multi-stage hydraulic output information.

[0093] It should be noted that this step is to determine whether the pressure value collected by the pressure sensor 511 at the current moment is the same as the output force of the first stage. If the output force of the hydraulic device 53 does not reach the value of the first stage before dismantling, the second lining may deform into the super-large span tunnel under the action of external force during the dismantling process, causing safety hazards; and if such deformation is discovered, it will cause safety hazards to the super-large span tunnel after the construction is completed. Therefore, the output force of the hydraulic device 53 is adjusted before dismantling to ensure the structural stability of the super-large span tunnel.

[0094] S420, sending a fifth command, the fifth command including a command for dismantling the temporary support 6 of the second lining according to a preset method for dismantling the temporary support 6 of the second lining;

[0095] S430. During the removal of the secondary lining temporary support 6, the fourth information is obtained in real time, and the output force of the hydraulic device 53 is adjusted based on the fourth information and the multi-stage hydraulic output information until the secondary lining temporary support 6 is removed. The fourth information includes the pressure value information collected by the pressure sensor 511, and the pressure sensor 511 is arranged at the top of the jacking device 5.

[0096] It should be noted that the pressure sensor 511 mentioned in this step and the pressure sensor 511 mentioned in S412 are the same pressure sensor 511 .

[0097] It should also be noted that this step is to timely adjust the output force of the hydraulic equipment through the fourth information, and maintain the stability of the super-long span tunnel through the jacking device 5. Specifically, this step includes step S431, step S432, step S433, step S434 and step S435.

[0098] S431, obtaining fourth information, where the fourth information includes pressure value information collected by the pressure sensor 511 at the current moment;

[0099] It should be noted that the pressure sensor 511 mentioned in this step is the same as the pressure sensor 511 mentioned in S412. At the same time, the fourth information mentioned in this step is acquired in real time, and the collection interval of the fourth information is preferably 0.2s, that is, in the entire process of removing the secondary lining temporary support 6, the collection interval is 0.2s, and the collected data is carried out in the entire process of step S432-step S435 to achieve safety assurance of the entire process of removing the secondary lining temporary support 6. Reduce the possibility of danger during the construction process.

[0100] S432. Calculate a warning pressure value according to the fourth information and a preset warning coefficient;

[0101] It should be noted that, in practice, the pressure sensor 511 has a delay in sending back data, the hydraulic equipment has a delay in receiving information, and the hydraulic equipment has a delay in reaching a new output force, so the output force cannot be adjusted only when the fourth information reaches a certain stage. If this is the case, the second lining will deform into the super-large span tunnel under the action of external force, causing safety hazards. Therefore, in this step, it is also intended to perform early data transition by presetting the warning coefficient, adjust the hydraulic equipment in advance, and reduce the possibility of the above situation.

[0102] It should also be noted that the preset warning factor mentioned in this step is 110%

[0103] S433, analyzing and obtaining fifth information according to the warning pressure value and the multi-stage hydraulic output information, the fifth information including output force information less than the warning pressure value in the multi-stage hydraulic output information;

[0104] It can be understood that this step is to filter out all output forces less than the warning pressure value from the multi-stage hydraulic output information according to the size of the warning pressure value.

[0105] S434, obtaining sixth information based on the fifth information through analysis, where the sixth information includes the maximum output force information in the fifth information;

[0106] It can be immediately noted that this step is combined with S32 to obtain an output force in the multi-stage hydraulic output information, the magnitude of which is greater than the pressure value obtained by the actual pressure sensor 511, but less than the warning pressure value. This achieves the pre-adjustment of the output force of the hydraulic device 53, and the pre-adjustment margin is not too large, thereby reducing the damage of the jacking device 5 to the super-long span tunnel.

[0107] S435. Adjust the output force of the lifting device 5 based on the sixth information.

[0108] The method obtains relevant structural information and relevant material information of the construction environment in advance, constructs a three-dimensional model to perform a theoretical removal process of the secondary lining temporary support 6, and analyzes the output force of the hydraulic device 53 in the jacking device 5 of the required embodiment 1, thereby guiding the actual removal process of the secondary lining temporary support 6, reducing the process of manual adjustment based on experience, and making the adjustment of the hydraulic equipment more accurate; and in the actual removal process, pre-adjusting the output force of the hydraulic equipment through advance data transition, reduces the possibility of unsafe conditions during the removal process of the secondary lining temporary support 6.

[0109] Embodiment 3:

[0110] like Figure 3 As shown, this embodiment provides a super-large-span tunnel support removal device, the device comprising:

[0111] A first command sending unit 1 is used to send a first command, wherein the first command includes a command to vertically place the jacking device 5 in the super-long-span tunnel;

[0112] A first acquisition unit 2 is used to acquire first information, the first information includes characteristic parameters of surrounding rock materials, characteristic parameters of lining materials and structural parameters of the secondary lining temporary support 6, the structural parameters of the secondary lining temporary support 6 include the overall structure of the secondary lining temporary support 6 and material characteristic parameters of the secondary lining temporary support 6;

[0113] A hydraulic adjustment calculation unit 3 is used to establish a hydraulic adjustment mathematical model based on the first information, and solve the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, wherein the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device 53 of the jacking device 5 in the preset secondary lining temporary support 6 removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence;

[0114] The second command sending unit 4 is used to send a second command based on the multi-stage hydraulic output information. The second command includes a command to remove the secondary lining temporary support 6 and adjust the jacking device 5 to support the super-large span tunnel. During the removal of the secondary lining temporary support 6, the super-large span tunnel remains stable under the support of the jacking device 5.

[0115] In a specific embodiment of the present disclosure, the hydraulic adjustment calculation unit 3 includes:

[0116] A hydraulic output calculation unit 31, used for calculating and obtaining multi-stage hydraulic output information based on the first information;

[0117] The first adjustment unit 32 is used to calculate the amplified multi-stage hydraulic output information according to the multi-stage hydraulic output information according to the preset amplification coefficient, and update the multi-stage hydraulic output information to the amplified multi-stage hydraulic output information.

[0118] In a specific embodiment of the present disclosure, the hydraulic output calculation unit 31 includes:

[0119] The second acquisition unit 311 is used to acquire the structural information of the lifting device 5 and the parameter information of the hydraulic device 53;

[0120] A three-dimensional model building unit 312, used for drawing a construction simulation three-dimensional model based on the structural information of the jacking device 5 and the first information;

[0121] The simulation construction unit 313 is used to dismantle the temporary support 6 of the secondary lining in sections in the construction simulation three-dimensional model according to the preset dismantling process of the temporary support 6 of the secondary lining, and analyze and obtain the second information, wherein the second information includes the force information of the jacking device 5 during the multi-stage dismantling of the temporary support 6 of the secondary lining in the construction simulation three-dimensional model;

[0122] The first sub-calculation unit 314 is used to calculate and obtain multi-stage hydraulic output information according to the second information and parameter information of the hydraulic device 53 .

[0123] In a specific implementation of the present disclosure, the second command sending unit 4 includes:

[0124] The preparation unit 41 is used to send a preparation command for demolition, wherein the preparation command for demolition includes a command for adjusting the output force of the hydraulic device 53, and the jacking device 5 is in conflict with the top and bottom of the super-long-span tunnel under the output force of the hydraulic device 53;

[0125] A fifth command sending unit 42 is used to send a fifth command, wherein the fifth command includes a command for removing the temporary support 6 of the second lining according to a preset removal method of the temporary support 6 of the second lining;

[0126] The real-time adjustment unit 43 is used to obtain the fourth information in real time during the removal of the secondary lining temporary support 6, and adjust the output force of the hydraulic device 53 based on the fourth information and the multi-stage hydraulic output information until the secondary lining temporary support 6 is removed. The fourth information includes the pressure value information collected by the pressure sensor 511, and the pressure sensor 511 is arranged at the top of the jacking device 5.

[0127] In a specific embodiment of the present disclosure, the preparation unit 41 includes:

[0128] A third acquisition unit 411 is used to acquire third information, where the third information includes pressure value information collected by the pressure sensor 511 at the current moment;

[0129] The pre-adjustment unit 412 is used to send a third command if the third information is not equal to the minimum output force in the multi-stage hydraulic output information. The third command includes adjusting the jacking device 5 until the pressure value is equal to the minimum output force in the multi-stage hydraulic output information.

[0130] In a specific implementation of the present disclosure, the real-time adjustment unit 43 includes:

[0131] A fourth acquisition unit 431 is used to acquire fourth information, where the fourth information includes pressure value information collected by the pressure sensor 511 at the current moment;

[0132] The warning threshold calculation unit 432 is used to calculate the warning pressure value according to the fourth information and the preset warning coefficient;

[0133] The first screening unit 433 is used to analyze and obtain fifth information according to the warning pressure value and the multi-stage hydraulic output information, wherein the fifth information includes output force information less than the warning pressure value in the multi-stage hydraulic output information;

[0134] A second screening unit 434 is used to obtain sixth information based on the fifth information through analysis, where the sixth information includes the maximum output force information in the fifth information;

[0135] The output real-time adjustment unit 435 is used to adjust the output force of the lifting device 5 based on the sixth information.

[0136] It should be noted that, regarding the device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here.

[0137] Embodiment 4:

[0138] Corresponding to the above method embodiment, this embodiment also provides a super-large span tunnel support removal device. The super-large span tunnel support removal device described below and the super-large span tunnel support removal method described above can be referred to each other.

[0139] FIG. 1 is a block diagram of a super-long-span tunnel support removal device 800 according to an exemplary embodiment. As shown in the figure, the super-long-span tunnel support removal device 800 may include: a processor 801, a memory 802. The super-long-span tunnel support removal device 800 may also include one or more of a multimedia component 803, an input / output (I / O) interface 804, and a communication component 805.

[0140] The processor 801 is used to control the overall operation of the super-long-span tunnel support removal device 800 to complete all or part of the steps in the super-long-span tunnel support removal method described above. The memory 802 is used to store various types of data to support the operation of the super-long-span tunnel support removal device 800, and these data may include, for example, instructions for any application or method used to operate on the super-long-span tunnel support removal device 800, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 802 or sent via the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules can be keyboards, mice, buttons, etc. These buttons can be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the ultra-large span tunnel support and removal equipment 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 805 can include: Wi-Fi module, Bluetooth module, NFC module.

[0141] In an exemplary embodiment, the ultra-large span tunnel support and removal equipment 800 can be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, referred to as ASIC), digital signal processors (Digital Signal Processor, referred to as DSP), digital signal processing devices (Digital Signal Processing Device, referred to as DSPD), programmable logic devices (Programmable Logic Device, referred to as PLD), field programmable gate arrays (Field Programmable Gate Array, referred to as FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned ultra-large span tunnel support and removal method.

[0142] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned super-long-span tunnel support removal method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the super-long-span tunnel support removal device 800 to complete the above-mentioned super-long-span tunnel support removal method.

[0143] Embodiment 5:

[0144] Corresponding to the above method embodiment, a readable storage medium is also provided in this embodiment. The readable storage medium described below and the super-large span tunnel support removal method described above can refer to each other.

[0145] A readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the super-large-span tunnel support removal method of the above-mentioned method embodiment.

[0146] The readable storage medium may specifically be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or other readable storage medium that can store program codes.

[0147] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0148] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for dismantling support for a super-large-span tunnel. It is characterized in that include: Sending a first command, wherein the first command includes a command to vertically place a jacking device in a super-long-span tunnel; Acquire first information, wherein the first information includes characteristic parameters of surrounding rock materials, characteristic parameters of lining materials, and structural parameters of secondary lining temporary support, wherein the structural parameters of the secondary lining temporary support include the overall structure of the secondary lining temporary support and material characteristic parameters of the secondary lining temporary support; Establishing a hydraulic adjustment mathematical model based on the first information, solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, wherein the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device of the jacking device in the preset secondary lining temporary support removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence; Based on the multi-stage hydraulic output information, a second command is sent, which includes a command to remove the temporary support of the second lining and adjust the jacking device to support the super-large span tunnel. During the removal of the temporary support of the second lining, the super-large span tunnel remains stable under the support of the jacking device.

2. The method for dismantling support for a super-large-span tunnel according to claim 1, Features: The step of establishing a hydraulic adjustment mathematical model based on the first information and solving the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information includes: Calculate and obtain the multi-stage hydraulic output information based on the first information; According to the multi-stage hydraulic output information, the amplified multi-stage hydraulic output information is calculated according to a preset amplification coefficient, and the multi-stage hydraulic output information is updated to the amplified multi-stage hydraulic output information.

3. The method for dismantling support for a super-large-span tunnel according to claim 2, Features: The calculating of multiple sections of hydraulic output information based on the first information and the hydraulic parameter information includes: Acquiring structural information of the jacking device and parameter information of the hydraulic device; Drawing a construction simulation three-dimensional model based on the structural information of the jacking device and the first information; The temporary support of the second lining in the construction simulation three-dimensional model is removed in sections according to a preset temporary support removal process, and second information is obtained by analysis, wherein the second information includes force information of the jacking device during the multi-stage removal of the temporary support of the second lining in the construction simulation three-dimensional model; The multi-stage hydraulic output information is calculated based on the second information and the hydraulic device parameter information.

4. The method for dismantling support for a super-large-span tunnel according to claim 1, Features: The sending of a second command based on the multi-stage hydraulic output information comprises: Sending a preparation for demolition command, wherein the preparation for demolition command includes a command to adjust the output force of the hydraulic device, and the jacking device contacts the top and bottom of the super-long span tunnel under the output force of the hydraulic device; Sending a fifth command, wherein the fifth command includes a command for removing the temporary support of the second lining according to a preset temporary support removal method; During the removal of the temporary support of the second lining, fourth information is obtained in real time, and the output force of the hydraulic device is adjusted based on the fourth information and the multi-stage hydraulic output information until the temporary support of the second lining is removed. The fourth information includes pressure value information collected by a pressure sensor, and the pressure sensor is arranged on the top of the jacking device.

5. A super-large-span tunnel support removal device, It is characterized in that include: A first command sending unit, used to send a first command, wherein the first command includes a command to vertically place a jacking device in a super-long-span tunnel; a first acquisition unit, configured to acquire first information, wherein the first information includes characteristic parameters of surrounding rock materials, characteristic parameters of lining materials, and structural parameters of secondary lining temporary support, wherein the structural parameters of the secondary lining temporary support include the overall structure of the secondary lining temporary support and material characteristic parameters of the secondary lining temporary support; a hydraulic adjustment calculation unit, configured to establish a hydraulic adjustment mathematical model based on the first information, and solve the hydraulic adjustment mathematical model to obtain multi-stage hydraulic output information, wherein the multi-stage hydraulic output information is information on the output force adjustment of the hydraulic device of the jacking device in the preset secondary lining temporary support removal method, and the multi-stage hydraulic output information includes at least four stages of output force information that increases in sequence; The second command sending unit is used to send a second command based on the multi-stage hydraulic output information, wherein the second command includes a command to remove the temporary support of the second lining and adjust the jacking device to support the super-large span tunnel. During the removal of the temporary support of the second lining, the super-large span tunnel remains stable under the support of the jacking device.

6. The super-large-span tunnel support and removal device according to claim 5, It is characterized in that The hydraulic adjustment calculation unit comprises: A hydraulic output calculation unit, configured to calculate the multi-stage hydraulic output information based on the first information; The first adjustment unit is used to calculate the amplified multi-stage hydraulic output information according to the multi-stage hydraulic output information according to a preset amplification coefficient, and update the multi-stage hydraulic output information to the amplified multi-stage hydraulic output information.

7. The super-large-span tunnel support and removal device according to claim 6, It is characterized in that The hydraulic output calculation unit comprises: A second acquisition unit is used to acquire the structural information of the jacking device and the parameter information of the hydraulic device; A three-dimensional model building unit, used for drawing a construction simulation three-dimensional model based on the structural information of the jacking device and the first information; The simulation construction unit is used to remove the temporary support of the second lining in the construction simulation three-dimensional model in sections according to the preset temporary support removal process, and analyze to obtain second information, wherein the second information includes the force information of the jacking device during the multi-stage removal of the temporary support of the second lining in the construction simulation three-dimensional model; The first sub-calculation unit is used to calculate and obtain multi-stage hydraulic output information according to the second information and the hydraulic device parameter information.

8. The super-large-span tunnel support and removal device according to claim 5, It is characterized in that The second command sending unit includes: A preparation unit, used for sending a preparation command for demolition, wherein the preparation command for demolition includes a command for adjusting the output force of the hydraulic device, and the jacking device is in conflict with the top and bottom of the super-long-span tunnel under the output force of the hydraulic device; A fifth command sending unit, used to send a fifth command, wherein the fifth command includes a command to remove the temporary support of the second lining according to a preset temporary support removal method; A real-time adjustment unit is used to obtain fourth information in real time during the removal of the temporary support of the second lining, and adjust the output force of the hydraulic device based on the fourth information and the multi-stage hydraulic output information until the temporary support of the second lining is removed. The fourth information includes pressure value information collected by a pressure sensor, and the pressure sensor is arranged on the top of the jacking device.

9. A super-large-span tunnel support and removal equipment, It is characterized in that include: Memory for storing computer programs; A processor is used to implement the steps of the super-large span tunnel support removal method as described in any one of claims 1 to 4 when executing the computer program.

10. A readable storage medium, Features: The readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for dismantling support for a super-large-span tunnel as described in any one of claims 1 to 4.

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