Method, system and equipment for renovating deformation of shield tunnel in soft stratum

Abstract

The invention relates to the technical field of shield tunnel deformation regulation, and discloses a soft stratum shield tunnel deformation regulation method, system and equipment. The method comprises the following steps: performing analysis according to three-dimensional laser scanning data, total station measurement data and track detection trolley data of shield segments, and determining a deformation direction and a deformation value of a maximum deformation point location of each ring of segment; performing section division and numbering on the to-be-regulated shield segments, and performing deformation regulation according to a numbering sequence; determining a drilling position according to the deformation direction and the deformation value; drilling and mounting an anti-inrush steel pipe according to the drilling position, mounting a domain-controlled grouting bag based on a drilled hole, injecting a high polymer material, filling the domain-controlled grouting bag after expansion, and generating an extrusion effect; and the grouting flow speed and the grouting time are adjusted according to the real-time monitoring data, so that the duct piece deformation adjustment reaches the expected regulation target. According to the method, detection means such as three-dimensional laser, settlement deformation monitoring and a rail detection trolley are comprehensively adopted, the point location and direction of shield tunnel deformation are accurately judged, and therefore the purposes of reducing the structural deformation of the duct piece and improving the construction efficiency are achieved by injecting a high polymer material into the domain-controlled grouting bag, generating an extrusion effect on the duct piece through slurry expansion and accurately controlling the extrusion range of the duct piece. And the structure stress is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of shield tunnel deformation treatment, and in particular to a method, system and equipment for treating shield tunnel deformation in soft strata. Background Art

[0002] Subway shield tunnels are prone to deformation. The reasons for deformation include: first, the tunnel passes through uneven soft and hard strata, which is prone to uneven settlement under dynamic loads; second, the backfill grouting behind the shield segment wall during the construction period is not dense, and there is a gap between the segment and the stratum, which is prone to lateral deformation; third, there are new projects under construction in the surrounding area, such as precipitation, foundation pit excavation, underpass or parallel crossing, ground loading and other external construction factors, which cause the shield segment to settle, lateral deformation or lateral deviation. Excessive deformation of the shield tunnel will cause structural cracks, water leakage, and even block falling, affecting the structural safety and service life. Excessive deformation will affect the smoothness of the track or reduce the clearance, seriously affecting the safety of train driving.

[0003] The existing tunnel deformation control methods mainly include: steel ring reinforcement method and grouting reinforcement method. Steel ring reinforcement method: By adding a certain thickness of annular steel plate inside the existing shield tunnel segment, the steel plate and the segment are glued together by bonding materials, thereby controlling the deformation of the shield tunnel. This method is currently the most widely used. This method can greatly improve the overall stiffness of the entire ring of the shield segment and improve its ability to resist deformation. However, this method will reduce the clearance of the shield tunnel and make it difficult to meet the limit requirements of train operation. In addition, under the influence of external factors, the shield tunnel may continue to deform, and eventually the glued steel plate and the shield tunnel will collapse due to the incoordination of deformation, and the deformation of the tunnel cannot be fundamentally curbed. Grouting reinforcement method: The commonly used materials are inorganic cement slurry or water glass. The gap behind the segment wall is filled through the existing grouting holes of the segment. The grouting pressure is relatively small, which can inhibit the deformation of the shield tunnel to a certain extent. However, due to the uncontrollable diffusion range of the slurry, it is difficult to accurately adjust the deformation of the tunnel. Summary of the invention

[0004] The main purpose of the present invention is to provide a method, system and equipment for deformation treatment of a shield tunnel in soft strata, aiming to solve at least one of the above problems.

[0005] To achieve the above object, the present invention provides a method for deformation control of a shield tunnel in soft strata, comprising:

[0006] Analyze the 3D laser scanning data of the shield segment, the total station measurement data and the track detection car data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment;

[0007] The shield segments to be rectified are divided into sections and numbered, and deformation rectification is carried out according to the numbering sequence;

[0008] Determine the drilling position according to the deformation direction and the deformation value;

[0009] Drilling and installing the anti-surge steel pipe according to the drilling position, and installing the control area grouting bag based on the hole after drilling;

[0010] Injecting polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated;

[0011] The grouting flow rate and grouting time are adjusted according to the real-time monitoring data of the shield segment to be rectified so that the deformation adjustment of the segment can achieve the expected rectification goal.

[0012] In some embodiments, the step of analyzing the three-dimensional laser scanning data, the total station measurement data, and the track detection vehicle data of the shield segment to determine the deformation direction and deformation value of the maximum deformation point of each ring segment includes:

[0013] Scan the shield segments based on 3D laser scanning technology to obtain 3D laser scanning data;

[0014] Analyze the ovality of the shield segment according to the three-dimensional laser scanning data to obtain an ovality analysis result;

[0015] Determine the deformation range of the segment and the maximum deformation point of each ring segment according to the ovality analysis result;

[0016] Based on the maximum deformation point, total station measurement data and track inspection trolley data are collected, and the deformation direction and deformation value of the maximum deformation point of each ring of the segment are determined according to the total station measurement data and the track inspection trolley data.

[0017] In some embodiments, the collecting of total station measurement data and track inspection trolley data based on the maximum deformation point, and determining the deformation direction and deformation value of the maximum deformation point of each ring segment according to the total station measurement data and the track inspection trolley data, includes:

[0018] The maximum deformation point of each ring segment is measured based on the total station to obtain the total station measurement data;

[0019] Compare and analyze the point measurement values ​​of the total station measurement data with the design theoretical values ​​to obtain the deformation direction of the maximum deformation point of each ring segment;

[0020] The track detection trolley is used to measure the track sleeper by sleeper to obtain the track detection trolley data;

[0021] Comparing the track measurement value of the track detection vehicle data with the track design value to determine the deviation between the track current linearity and the design linearity;

[0022] The deformation value of the maximum deformation point of each ring segment is determined according to the deviation.

[0023] In some embodiments, the shield segments to be rectified are divided into sections and numbered, and deformation rectification is performed according to the numbering sequence, including:

[0024] Arrange multiple monitoring points on each ring of shield segments to be rectified;

[0025] Measuring the initial coordinates of the monitoring points;

[0026] According to the initial coordinates, the distance between the two prisms with the largest deformation of the same ring segment and the distance between the vault prism and the ballast prism are calculated to obtain the measurement results;

[0027] Dividing the shield segments to be rectified into several sections based on the measurement results, and determining the segment with the largest deformation among the shield segments to be rectified;

[0028] The segment with the largest deformation is extended two rings on both sides as the initial remediation section, and the initial remediation section is numbered as zero; wherein, for the segments in the same remediation section, the remediation is carried out from large to small according to the magnitude of the deformation;

[0029] Based on the initial remediation section, the left sections are numbered as odd numbers from small to large, and the right sections are numbered as even numbers from small to large;

[0030] Starting from the initial renovation section, the shield segments are renovated based on the numbers from small to large.

[0031] In some embodiments, determining the drilling position according to the deformation direction and the deformation value includes:

[0032] Determining whether the tunnel axis is offset according to the deformation direction and deformation value;

[0033] When the tunnel axis does not deviate, two ends of the maximum diameter of the deformation are determined as drilling positions;

[0034] When the tunnel axis is offset and the offset directions of the two points at the maximum deformation point of the same ring segment are consistent or opposite, the two ends of the maximum deformation diameter are determined as the drilling positions;

[0035] When the tunnel axis is offset and the deformation amount of one end at the maximum deformation diameter is relatively small or unchanged, the end with a relatively large deformation amount is determined as the drilling position;

[0036] If the recovery amount of segment convergence during renovation is greater than the preset recovery distance, an additional arch hole will be drilled in addition to the hole drilled at the location of the maximum deformation diameter.

[0037] In some embodiments, drilling and installing the surge prevention steel pipe according to the drilling position, and installing the controlled area grouting bag based on the hole after drilling, include:

[0038] Drilling is performed according to the drilling position, and the drilling is stopped when the drilling is a preset distance from the bottom of the segment;

[0039] Install the threaded steel pipe so that the length of the steel pipe exposed from the pipe segment is less than or equal to the preset length;

[0040] After the steel pipe is firmly anchored, drilling continues in the steel pipe and stops drilling after drilling through the pipe segment;

[0041] The soil behind the segment wall is cut based on the holes after drilling to form a preset space centered on the drilled hole behind the segment;

[0042] Spraying quick-setting slurry onto the surface of the preset space formed by cutting;

[0043] Insert the installation tube into the orifice of the control area grouting bag;

[0044] Pass the control area grouting bag and the installation tube through the drilled hole, and use the installation tube to install the control area grouting bag into the preset space;

[0045] Installing a grout stopper at the orifice of the control area grouting bag;

[0046] The rubber bag at the front end of the stop plug is expanded by tightening the nut, so that the orifice of the control area grouting bag fits with the drilled hole wall of the segment;

[0047] The connecting pipeline is ready to grout the control area grouting bag.

[0048] In some embodiments, injecting a polymer material into the control domain grouting bag comprises:

[0049] If the segment axis offset is less than a preset threshold, and the offset at one end of the maximum deformation diameter is less than the preset threshold or there is no offset, polymer material grouting is performed at the other end of the maximum deformation diameter;

[0050] If the segment axis offset is less than a preset threshold, and the two ends of the maximum deformation diameter are offset in opposite directions, polymer material grouting is performed simultaneously at the two ends of the maximum deformation diameter;

[0051] If the segment axis offset is greater than the preset threshold, and the two ends of the maximum deformation diameter are offset in the same direction, the polymer material is first grouted at the end with a relatively large offset at the maximum deformation diameter, and the other end is grouted when it is close to the theoretical position according to the real-time monitoring data;

[0052] When the convergence at the maximum deformation point is greater than the preset convergence value, holes are drilled in the arch and the soil behind the segment wall is cut to allow the segment to have space for free deformation upward during the renovation process.

[0053] In some embodiments, the method further comprises:

[0054] Stop grouting after the slurry in the control area grouting bag solidifies;

[0055] Remove the grout stopper and clear the control area grouting bag within the thickness of the segment;

[0056] Drilling a hole with an electric drill to penetrate the bottom of the control area grouting bag;

[0057] Install a grouting ball valve on the steel pipe and connect the pipeline to inject cement gelling material to fill the pores between the pipe segment and the stratum after the deformation of the pipe segment is rectified;

[0058] Cut out the leaking steel pipe and apply waterproof material.

[0059] In addition, to achieve the above-mentioned purpose, the present invention also proposes a deformation control system for a shield tunnel in a soft stratum, comprising:

[0060] The data analysis module is used to analyze the 3D laser scanning data of the shield segment, the total station measurement data and the track detection vehicle data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment;

[0061] The segment numbering module is used to divide and number the shield segments to be rectified, and perform deformation rectification according to the numbering sequence;

[0062] A drilling module, used for determining a drilling position according to the deformation direction and the deformation value;

[0063] An installation module is used to drill holes and install anti-surge steel pipes according to the drilling positions, and to install a controlled area grouting bag based on the holes after drilling;

[0064] A grouting module is used to inject a polymer material into the control area grouting bag, so that the polymer material expands to fill the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated;

[0065] The monitoring and adjustment module is used to adjust the grouting flow rate and grouting time according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment can achieve the expected rectification goal.

[0066] In addition, to achieve the above-mentioned purpose, the present invention also proposes an electronic device, which includes: a memory, a processor, and a soft stratum shield tunnel deformation remediation program stored on the memory and runnable on the processor, and the soft stratum shield tunnel deformation remediation program is configured to implement the soft stratum shield tunnel deformation remediation method as described above.

[0067] The present invention provides a deformation treatment method for a shield tunnel in a soft stratum, comprising: analyzing three-dimensional laser scanning data, total station measurement data and track detection trolley data of shield segments to determine the deformation direction and deformation value of the maximum deformation point of each ring of segments; dividing and numbering the shield segments to be treated into sections, and performing deformation treatment according to the numbering sequence; determining drilling positions according to the deformation direction and deformation value; drilling and installing anti-surge steel pipes according to the drilling positions, and installing a control area grouting bag based on the holes after drilling; injecting a polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segments to be treated; adjusting the grouting flow rate and grouting time according to the real-time monitoring data of the shield segments to be treated, so that the deformation adjustment of the segments reaches the expected treatment goal. The present invention adopts three-dimensional laser scanning, settlement deformation monitoring and track inspection trolley and other detection means to accurately determine the deformation point and direction of the shield tunnel, so as to inject polymer material into the control area grouting bag, diffuse the polymer material in the control area grouting bag and fill the bag body, and the slurry expands to produce an extrusion effect on the pipe segment. The extrusion range of the pipe segment is accurately controllable, so that the pipe segment deforms inwardly, thereby achieving the purpose of reducing the deformation of the pipe segment structure and optimizing the structural stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 A schematic diagram of the structure of an electronic device in a hardware operating environment involved in an embodiment of the present invention;

[0069] Figure 2 It is a schematic flow chart of an embodiment of a method for treating deformation of a shield tunnel in soft strata according to the present invention;

[0070] Figure 3 It is a schematic diagram of single-side grouting involved in the embodiment of the present invention;

[0071] Figure 4 It is a schematic diagram of double-side grouting involved in the embodiment of the present invention;

[0072] Figure 5 It is a schematic diagram of grouting when the deformation involved in the embodiment of the present invention is large;

[0073] Figure 6 It is a schematic diagram of grouting involved in the embodiment of the present invention;

[0074] Figure 7The present invention is a structural block diagram of an embodiment of a system for remediating deformation of a shield tunnel in soft strata according to the present invention.

[0075] Explanation of the reference numerals: 1- pipe segment; 2- control area grouting bag; 3- control area grouting bag hole; 4- steel pipe to be threaded; 5- grouting stop plug gasket; 6- grouting stop plug tightening nut; 7- one-way grouting stop valve; 8- grouting stop plug core tube; 9- grouting stop leather sleeve.

[0076] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0077] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0078] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0079] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0080] Reference Figure 1 , Figure 1 The figure is a schematic diagram of the structure of an electronic device of the hardware operating environment involved in the embodiment of the present invention.

[0081] like Figure 1As shown, the electronic device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM memory) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0082] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the electronic device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0083] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a deformation control program for a shield tunnel in a soft stratum.

[0084] exist Figure 1 In the electronic device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the electronic device of the present invention can be set in the electronic device, and the electronic device calls the soft stratum shield tunnel deformation remediation program stored in the memory 1005 through the processor 1001, and executes the soft stratum shield tunnel deformation remediation method provided by the embodiment of the present invention.

[0085] The invention provides a method, system and equipment for deformation treatment of a shield tunnel in soft strata.

[0086] The embodiment of the present invention provides a method for treating deformation of a shield tunnel in a soft stratum, referring to Figure 2 , Figure 2 The present invention is a flow chart of an embodiment of a method for remediating deformation of a shield tunnel in soft strata according to the present invention.

[0087] like Figure 2As shown, the deformation treatment method of a shield tunnel in soft strata comprises:

[0088] Step S100: Analyze the 3D laser scanning data of the shield segment, the total station measurement data and the track detection vehicle data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment;

[0089] Step S200: dividing and numbering the shield segments to be rectified, and performing deformation rectification according to the sequence of the numbers;

[0090] Step S300: determining a drilling position according to the deformation direction and deformation value;

[0091] Step S400: drilling and installing the surge prevention steel pipe according to the drilling position, and installing the control area grouting bag based on the hole after drilling;

[0092] Step S500: injecting a polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated;

[0093] Step S600: adjusting the grouting flow rate and grouting time according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment can achieve the expected rectification goal.

[0094] It should be noted that this embodiment is explained by taking the construction technology design of deformation control of shield tunnels in soft strata as an example. In this embodiment, the in-tunnel treatment method is adopted, which is not restricted by the surface environment. Three-dimensional laser scanning, settlement deformation monitoring and track inspection trolleys are comprehensively adopted to accurately determine the scope, location and direction of shield tunnel deformation. Monitoring points are arranged on the vault, ballast and both ends of the diameter with the largest deformation of each ring of segments within a certain range of the deformed segments and at both ends, and automated monitoring means are used to monitor the deformation of the segments in real time. Drill holes on the pipe segments with large deformation, use high-pressure water or high-pressure wind to cut and erode the soil behind the pipe segments to form a certain space, then spray fast-setting slurry on the soil surface, install a customized bladder-type controlled-domain grouting device in the eroded space behind the pipe segments through drilling, ensure that the center of the controlled-domain grouting sac basically coincides with the drill hole, and inject polymer material into the controlled-domain grouting sac through the grouting pipe installed at the mouth of the controlled-domain grouting sac. The polymer material diffuses in the controlled-domain grouting sac and fills the sac. The slurry expands and produces an extrusion effect on the pipe segments. The extrusion range of the pipe segments is precisely controllable, causing the pipe segments to deform inward, and ultimately achieving the purpose of reducing the deformation of the pipe segment structure and optimizing the structural stress. The following is a detailed explanation combined with specific steps.

[0095] In one embodiment, the deformation direction and deformation value of the maximum deformation point of each ring of the segment are determined based on the three-dimensional laser scanning data, total station measurement data and track detection car data of the shield segment, including: scanning the shield segment based on the three-dimensional laser scanning technology to obtain three-dimensional laser scanning data; analyzing the ellipticity of the shield segment according to the three-dimensional laser scanning data to obtain an ellipticity analysis result; determining the deformation range of the segment and the maximum deformation point of each ring of the segment according to the ellipticity analysis result; collecting the total station measurement data and the track detection car data based on the maximum deformation point, and determining the deformation direction and deformation value of the maximum deformation point of each ring of the segment according to the total station measurement data and the track detection car data.

[0096] Wherein, based on the maximum deformation point, total station measurement data and track inspection trolley data are collected, and the deformation direction and deformation value of the maximum deformation point of each ring of segments are determined according to the total station measurement data and the track inspection trolley data, including: measuring the maximum deformation point of each ring of segments based on the total station to obtain the total station measurement data; comparing and analyzing the point measurement values ​​of the total station measurement data with the design theoretical values ​​to obtain the deformation direction of the maximum deformation point of each ring of segments; measuring the track sleeper by sleeper based on the track inspection trolley to obtain the track inspection trolley data; comparing the track measurement values ​​of the track inspection trolley data with the track design values ​​to determine the deviation between the current track linearity and the designed linearity; determining the deformation value of the maximum deformation point of each ring of segments according to the deviation.

[0097] For example, by using 3D laser scanning technology to obtain 3D laser scanning data of shield segments, the overall information of tunnel shield segments can be comprehensively collected with high accuracy. The total station measurement data is obtained by measuring the points with the largest deformation of each ring of segments, so as to analyze the deformation direction of the points with the largest deformation of each ring of segments. The track detection trolley is used to measure the track sleeper by sleeper to obtain the track detection trolley data, so as to analyze the deviation between the current track line shape and the designed linearity.

[0098] Specifically, the 3D laser scanning technology is used to scan the segments, and the ovality of the shield segments is analyzed to determine the deformation range of the segments and the points with the largest deformation in each ring of the segments; the total station is used to measure the points with the largest deformation in each ring of the segments, and the measured values ​​of the points are compared with the designed theoretical values ​​to analyze the deformation direction of each point; the track is measured sleeper by sleeper using a track inspection trolley, and the measured track values ​​are compared with the designed values ​​to determine the deviation between the current track line shape and the designed linearity; the above-mentioned 3D laser scanning data, total station measurement data, and track inspection trolley data are fitted and comprehensively analyzed to finally determine the deformation direction and deformation value of the points with the largest deformation in each ring of the segments.

[0099] In one embodiment, shield segments to be rectified are divided into sections and numbered, and deformation rectification is performed according to the numbering sequence, including: arranging a plurality of monitoring points on each ring of shield segments to be rectified; measuring the initial coordinates of the monitoring points; calculating the spacing between the two prisms with the largest deformation in the same ring of segments and the spacing between the crown prism and the roadbed prism according to the initial coordinates to obtain measurement results; dividing the shield segments to be rectified into a plurality of sections based on the measurement results, and determining the segment with the largest deformation among the shield segments to be rectified; extending the segment with the largest deformation by two rings on both sides as the initial rectification section, and numbering the initial rectification section as zero; wherein, for the segments in the same rectification section, rectification is performed from large to small according to the magnitude of the deformation; based on the initial rectification section, the left sections are numbered as odd numbers from small to large, and the right sections are numbered as even numbers from small to large; starting from the initial rectification section, shield segment rectification is performed based on the numbering sequence from small to large.

[0100] Specifically, multiple (for example, 4 or 5) monitoring points are arranged on each ring of shield segments that need to be rectified. For example, one is arranged at the center line of the arch, one or two are arranged on the tunnel bottom roadbed, and two are arranged at both ends of the maximum deformation diameter. The monitoring points use automated monitoring instruments. The initial coordinates of each point are measured, and the spacing between the two prisms with the largest deformation of the same ring of segments is calculated, and the spacing between the arch prism and the roadbed prism is calculated. According to the measurement results, the rectification range is divided into several sections. For example, each section can contain 4 to 6 rings of segments. According to the deformation direction and deformation value of the maximum deformation point of each ring of segments, the segment with the largest deformation in the shield segments to be rectified is determined. The segment with the largest deformation is extended to both sides by 2 rings as the 0# section (i.e., the initial rectification section). The sections to the left of the 0# section are numbered 1#, 3#, 5#..., and the sections to the right are numbered 2#, 4#, 6#...

[0101] It should be noted that, in this embodiment, the order of shield segment treatment is 0# section, 1#, 2#, 3#, 4#, 5#... until all treatment is completed. Among them, the treatment of segments in the same section is carried out in descending order according to the size of deformation, starting from the largest deformation.

[0102] In this embodiment, the pipe segment treatment is carried out in sections and extends from the maximum deformation point to both ends. Since the pipe segments are connected by bolts, the above treatment method can make the deformation of adjacent pipe segments relatively uniform and more coordinated during the treatment process, avoiding excessive deformation differences that may cause pipe segment misalignment or cracking.

[0103] In one embodiment, the drilling position is determined according to the deformation direction and the deformation value, including: judging whether the tunnel axis is offset according to the deformation direction and the deformation value; when the tunnel axis is not offset, determining the two ends of the maximum deformation diameter as the drilling positions; when the tunnel axis is offset and the offset directions of the two points of the maximum deformation point of the same ring segment are consistent or opposite, determining the two ends of the maximum deformation diameter as the drilling positions; when the tunnel axis is offset and the deformation amount of one end of the maximum deformation diameter is relatively small or unchanged, determining the end with relatively large deformation amount as the drilling position; if the recovery amount of the segment convergence during renovation is greater than the preset recovery distance, then an arch top drilling hole is added in addition to the drilling hole at the maximum deformation diameter.

[0104] Specifically, if the tunnel axis has not shifted, holes are drilled at both ends of the point with maximum deformation; if the tunnel axis has shifted and the shift directions of the two points with maximum deformation on the same ring segment are consistent or opposite, holes are drilled at both ends of the point with maximum deformation; if the tunnel axis has shifted, but the deformation at one end at the maximum deformation diameter is small or unchanged, holes are drilled only at the end with the larger shift.

[0105] It is understandable that in this embodiment, if the recovery amount of the segment convergence during the treatment is greater than the preset recovery distance (e.g., 15 mm), in addition to drilling holes at the maximum deformation diameter, another hole needs to be arranged on the arch. The preset recovery distance can be set according to the actual engineering situation, and this embodiment does not limit this.

[0106] In one embodiment, drilling and installing a surge prevention steel pipe are performed according to the drilling position, and a controlled area grouting bag is installed based on the hole after drilling, including: drilling according to the drilling position, and stopping drilling when the drilling is a preset distance from the bottom of the pipe segment; installing a steel pipe with a thread so that the length of the steel pipe exposed from the pipe segment is less than or equal to a preset length; after the steel pipe is firmly anchored, drilling continues in the steel pipe and stops drilling after drilling through the pipe segment; cutting the soil behind the pipe segment wall based on the hole after drilling to form a drilled hole behind the pipe segment. A preset space with the hole as the center; spray quick-setting slurry onto the surface of the preset space formed by cutting; insert a mounting tube into the orifice of the control domain grouting bag; pass the control domain grouting bag and the mounting tube through the hole after drilling, and use the mounting tube to install the control domain grouting bag into the preset space; install a grouting stop plug at the orifice of the control domain grouting bag; expand the rubber bag at the front end of the grouting stop plug by tightening the nut, so that the orifice of the control domain grouting bag fits with the drilled hole wall of the pipe segment; connect the pipeline to prepare for grouting into the control domain grouting bag.

[0107] It should be noted that the holes are arranged in the middle of the width of the pipe segment in principle. A steel bar detector can be used for detection before drilling. The drilling should avoid damaging the steel bars in the pipe segment. The diameter of the hole should be between 40 and 50 mm. When the installation of the grout stopper is met, avoid opening the hole too large to cause damage to the pipe segment.

[0108] In one example, a water drill is used to drill a hole, and drilling is stopped when the hole reaches a preset distance (e.g., 5 cm) from the bottom of the segment. A threaded steel pipe (anti-surge steel pipe) with a diameter of, for example, 32 to 42 mm is installed, and the length of the steel pipe exposed from the segment is less than or equal to a preset length (e.g., no more than 10 cm) to avoid intrusion into the limit and affecting the safety of train operation. The steel pipe can be firmly anchored with an anchoring agent (the function of the steel pipe is to prevent water and sand gushing when drilling through the segment), and after it is firmly anchored, the hole diameter continues to be drilled in the steel pipe, for example, 30 to 40 mm, and drilling is stopped after the segment is drilled through. Among them, the preset distance and the preset length can be set according to the actual engineering situation, and this embodiment does not limit this.

[0109] Specifically, the water (wind) gun is inserted into the hole by connecting the pipeline. Initially, the water (wind) outlet is upward, and high-pressure water (wind) is used to cut the soil behind the segment wall, and the gun body is rotated at a constant speed from top to bottom. A certain space (i.e., a preset space) centered on the drilled hole is formed behind the segment. Exemplarily, the thickness of the space is D≤(the thickness of the control domain grouting bag D1-the offset D2 that needs to be restored for the segment remediation-20mm). Then, the nozzle of the gun body is used to spray the quick-setting slurry onto the surface of the space formed by cutting to ensure the stability of the surrounding rock and prevent collapse, creating favorable conditions for the smooth installation of the control domain grouting bag. In this embodiment, a spray gun is used to spray quick-setting slurry onto the surface of the space formed by cutting, which can effectively prevent the collapse of the hole wall, ensure that the control domain grouting bag is installed to the predetermined position, and create conditions for the precise adjustment of the segment deformation.

[0110] Specifically, a freely bendable and retractable installation tube is inserted into the orifice of the control area grouting bag (the grouting bag may be in the shape of a round pancake and has air permeability), the control area grouting bag and the installation tube are passed through the drill hole, and the control area grouting bag is relatively evenly laid in the predetermined space using the installation tube. The orifice of the control area grouting bag needs to be exposed outside the pipe segment.

[0111] Specifically, a stop plug with a rubber sleeve is installed at the opening of the grouting bag, and the rubber bladder at the front end of the stop plug is expanded by tightening the nut, so that the opening of the control area grouting bag is closely attached to the drilled hole wall of the pipe segment, and the pipeline is connected to prepare for grouting. Among them, the stop plug needs to provide sufficient friction resistance.

[0112] In this embodiment, the thickness and area of ​​the control area grouting bag are calculated based on numerical simulation, which can make the force on the pipe segment more uniform during the deformation treatment process of the pipe segment, and avoid stress concentration during grouting behind the wall and damage to the structure.

[0113] In one embodiment, a polymer material is injected into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated.

[0114] In one embodiment, polymer material is injected into the control domain grouting bag, including: if the offset of the segment axis is less than a preset threshold value, and the offset of one end of the maximum deformation diameter is less than the preset threshold value or there is no offset, then the polymer material is grouting to the other end of the maximum deformation diameter; if the offset of the segment axis is less than the preset threshold value, and the two ends of the maximum deformation diameter are offset in opposite directions respectively, then the polymer material is grouting to both ends of the maximum deformation diameter at the same time; if the offset of the segment axis is greater than the preset threshold value, and the two ends of the maximum deformation diameter are offset in the same direction, then the polymer material is grouting first at the end with a relatively large offset at the maximum deformation diameter, and the other end starts grouting when it is close to the theoretical position according to real-time monitoring data; when the convergence at the maximum deformation is greater than the preset convergence value, a hole is drilled in the arch and the soil behind the segment wall is cut, so that the segment has space for free deformation upward during the treatment process.

[0115] Exemplarily, the polymer materials that can be used include polymer AB group materials. The polymer AB group materials include a main agent and a curing agent, which are injected into the controlled area grouting bag, and react, expand and solidify into a solid state in the controlled area grouting bag, so that the grouting bag can be filled. The polymer AB group materials include but are not limited to two-component self-expanding polyurethane polymers.

[0116] Specifically, polymer AB group materials are injected into the control area grouting bag through the one-way valve at the end of the grouting plug. After mixing, the polymer AB group materials react and expand rapidly, filling the grouting bag and producing a squeezing effect on the surrounding soil and pipe segments.

[0117] Specifically, if the segment axis offset is not large, and the offset at one end of the maximum deformation diameter is small or non-existent, only the other end is grouted (for example, refer to Figure 3 Schematic diagram of single-side grouting shown in Figure 1); if the segment axis offset is not large and the two ends of the maximum deformation diameter are offset in opposite directions, grouting is performed simultaneously (for example, refer to Figure 1). Figure 4 If the segment axis offset is large and the two ends of the maximum deformation diameter offset in the same direction, the grouting will start on the side with the largest offset at the maximum deformation diameter first, and the other side will start grouting when the other end approaches the theoretical position according to the real-time monitoring data. Figure 5The schematic diagram of grouting when the deformation is large is shown. When the convergence at the maximum deformation is greater than the preset convergence value, that is, the convergence at the maximum deformation is large, a hole should be drilled in the vault and the soil behind the segment wall should be cut to ensure that the segment has space to deform upward freely during the treatment process. Among them, the preset threshold value and the preset convergence value of the segment axis offset comparison analysis can be set according to the actual engineering situation, and this embodiment does not limit this.

[0118] In this embodiment, polymer material is injected into the control area grouting bag, and the polymer material reacts and expands in volume. Compared with the method of using inorganic grouting materials, this embodiment uses less material, and the polymer material construction equipment is light and flexible, and the operation is more convenient. It is particularly suitable for construction operations in confined spaces in subways and has higher construction efficiency.

[0119] In this embodiment, the expansion of polymer materials during reaction is used to squeeze the segments, and finally the convergence and deviation of the segments are rectified. The controlled area grouting bag can make the slurry diffuse and expand within a predetermined range, avoiding disorderly diffusion of the slurry, thereby avoiding the waste of materials caused by disorderly diffusion of the slurry, and avoiding the slurry diffusion to the range that does not need to be rectified due to the uncontrollable diffusion range of the slurry, and the slurry reaction causing secondary damage to the segments.

[0120] In one embodiment, the grouting flow rate and the grouting time are adjusted according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment can achieve the expected rectification goal.

[0121] In one embodiment, the method also includes: stopping grouting after the slurry in the control area grouting bag solidifies; removing the grouting stop plug and clearing the control area grouting bag within the thickness range of the pipe segment; drilling a hole with an electric drill to drill through the bottom of the control area grouting bag; installing a grouting ball valve on the steel pipe and connecting the pipeline to inject cement cementitious material to fill the pores formed between the pipe segment and the formation after the deformation of the pipe segment is repaired; cutting out the leaking steel pipe and applying waterproof material.

[0122] Specifically, refer to Figure 6 The grouting diagram shown in the figure adjusts the grouting flow rate and grouting time according to the monitoring data (real-time monitoring data) of the deployed automated monitoring instrument, so that the deformation of the pipe segment can be adjusted slowly and evenly. After the expected goal of the treatment is achieved, stop grouting after the slurry solidifies. Remove the stop plug, remove the control area grouting bag within the thickness range of the pipe segment, and use an electric drill to drill holes. The holes need to be drilled through the bottom of the control area grouting bag. Install a grouting ball valve on the steel pipe, connect the pipeline, inject cement cementitious material, and fill the pores formed between the pipe segment and the formation after the deformation of the pipe segment is treated. Cut out the leaking steel pipe and apply waterproof material.

[0123] In this embodiment, full consideration is given to the operational characteristics of subway renovation that requires construction within the skylight point. The skylight time is generally 3 to 4 hours, and it is difficult to complete the entire process from drilling to grouting within one skylight. The installation of steel pipes can ensure that at the end of the skylight, the drill hole can be effectively sealed by installing a ball valve to prevent sudden surge accidents and ensure driving safety the next day.

[0124] In this embodiment, the rapid response characteristics of polymers and the high-frequency automatic monitoring system are fully utilized to quickly achieve the rectification of pipe segment deformation and understand the deformation status of the pipe segment in real time, thereby achieving the purpose of rapid and accurate control of deformation rectification.

[0125] The present embodiment provides a deformation control method for a shield tunnel in a soft stratum, comprising: analyzing the three-dimensional laser scanning data, total station measurement data and track detection vehicle data of the shield segment to determine the deformation direction and deformation value of the maximum deformation point of each ring of the segment; dividing and numbering the shield segment to be rectified into sections, and performing deformation control according to the numbering sequence; determining the drilling position according to the deformation direction and deformation value; drilling and installing a surge prevention steel pipe according to the drilling position, and installing a control area grouting bag based on the hole after drilling; injecting a polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be rectified; adjusting the grouting flow rate and grouting time according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment reaches the expected control goal. In this embodiment, three-dimensional laser scanning, settlement deformation monitoring, track inspection trolley and other detection methods are comprehensively adopted to accurately determine the position and direction of deformation of the shield tunnel, so that polymer material is injected into the control area grouting bag. The polymer material diffuses in the control area grouting bag and fills the bag. The expansion of the slurry produces an extrusion effect on the segment. The extrusion range of the segment is accurately controllable, causing the segment to deform inward, thereby achieving the purpose of reducing the deformation of the segment structure and optimizing the structural stress.

[0126] In addition, an embodiment of the present invention also proposes a storage medium, on which a deformation control program for a shield tunnel in soft strata is stored. When the deformation control program for a shield tunnel in soft strata is executed by a processor, the steps of the deformation control method for a shield tunnel in soft strata as described above are implemented.

[0127] Reference Figure 7 , Figure 7 The present invention is a structural block diagram of an embodiment of a system for remediating deformation of a shield tunnel in soft strata according to the present invention.

[0128] like Figure 7 As shown, the soft stratum shield tunnel deformation control system comprises:

[0129] The data analysis module 10 is used to analyze the three-dimensional laser scanning data of the shield segment, the total station measurement data and the track detection vehicle data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment;

[0130] The segment numbering module 20 is used to divide and number the shield segments to be rectified, and perform deformation rectification according to the sequence of numbers;

[0131] A drilling module 30, used to determine a drilling position according to the deformation direction and the deformation value;

[0132] An installation module 40 is used to drill holes and install anti-surge steel pipes according to the drilling positions, and install a controlled area grouting bag based on the holes after drilling;

[0133] A grouting module 50 is used to inject a polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated;

[0134] The monitoring and adjustment module 60 is used to adjust the grouting flow rate and grouting time according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment can achieve the expected rectification goal.

[0135] Specifically, the system described in this embodiment adopts an in-tunnel treatment method, is not restricted by the surface environment, and comprehensively adopts three-dimensional laser scanning, settlement deformation monitoring, and track inspection vehicles and other detection methods to accurately determine the scope, location, and direction of shield tunnel deformation. Monitoring points are arranged on the crown, ballast, and both ends of the diameter with the largest deformation of each ring of the deformed segment and a certain range at both ends, and automated monitoring methods are used to monitor the deformation of the segment in real time. Holes are drilled on the segments with larger deformations, and high-pressure water or high-pressure wind is used to cut and erode the soil behind the segments to form a certain space. Then, fast-setting slurry is sprayed on the soil surface. A customized bladder-type controlled-domain grouting device is installed in the eroded space behind the segments through drilling holes, ensuring that the center of the controlled-domain grouting sac basically coincides with the drill hole. Polymer material is injected into the controlled-domain grouting sac through a grouting pipe installed at the mouth of the controlled-domain grouting sac. The polymer material diffuses in the controlled-domain grouting sac and fills the sac. The expansion of the slurry produces an extrusion effect on the segments. The extrusion range of the segments is precisely controllable, causing the segments to deform inward, ultimately achieving the purpose of reducing the deformation of the segment structure and optimizing the structural stress.

[0136] The present embodiment proposes a deformation control system for a soft stratum shield tunnel. In the present embodiment, three-dimensional laser scanning, settlement deformation monitoring, track inspection trolley and other detection means are comprehensively adopted to accurately determine the point and direction of deformation of the shield tunnel, so that polymer material is injected into the control area grouting bag. The polymer material diffuses in the control area grouting bag and fills the bag body. The expansion of the slurry produces an extrusion effect on the segment. The extrusion range of the segment is accurately controllable, so that the segment deforms inwardly, thereby achieving the purpose of reducing the deformation of the segment structure and optimizing the structural stress.

[0137] It should be noted that the technical details that are not described in detail in the embodiment of the soft stratum shield tunnel deformation control system can be referred to the soft stratum shield tunnel deformation control method described above provided in any embodiment of the present invention, and will not be repeated here.

[0138] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0139] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0140] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0141] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0142] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0143] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for deformation control of a shield tunnel in soft strata, characterized in that: include: Analyze the 3D laser scanning data of the shield segment, the total station measurement data and the track detection car data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment; The shield segments to be rectified are divided into sections and numbered, and deformation rectification is carried out according to the numbering sequence; Determine the drilling position according to the deformation direction and the deformation value; Drilling and installing the anti-surge steel pipe according to the drilling position, and installing the control area grouting bag based on the hole after drilling; Injecting polymer material into the control area grouting bag, so that the polymer material expands and fills the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated; The grouting flow rate and grouting time are adjusted according to the real-time monitoring data of the shield segment to be rectified so that the deformation adjustment of the segment can achieve the expected rectification goal.

2. The method according to claim 1, characterized in that The method of analyzing the three-dimensional laser scanning data, total station measurement data and track detection vehicle data of the shield segment to determine the deformation direction and deformation value of the maximum deformation point of each ring segment includes: Scan the shield segments based on 3D laser scanning technology to obtain 3D laser scanning data; Analyze the ovality of the shield segment according to the three-dimensional laser scanning data to obtain an ovality analysis result; Determine the deformation range of the segment and the maximum deformation point of each ring segment according to the ovality analysis result; Based on the maximum deformation point, total station measurement data and track inspection trolley data are collected, and the deformation direction and deformation value of the maximum deformation point of each ring of the segment are determined according to the total station measurement data and the track inspection trolley data.

3. The method according to claim 2, characterized in that The method of collecting total station measurement data and track detection trolley data based on the maximum deformation point, and determining the deformation direction and deformation value of the maximum deformation point of each ring segment according to the total station measurement data and the track detection trolley data, includes: The maximum deformation point of each ring segment is measured based on the total station to obtain the total station measurement data; Compare and analyze the point measurement values ​​of the total station measurement data with the design theoretical values ​​to obtain the deformation direction of the maximum deformation point of each ring segment; The track detection trolley is used to measure the track sleeper by sleeper to obtain the track detection trolley data; Comparing the track measurement value of the track detection vehicle data with the track design value to determine the deviation between the track current linearity and the design linearity; The deformation value of the maximum deformation point of each ring segment is determined according to the deviation.

4. The method according to claim 1, characterized in that The shield segments to be treated are divided into sections and numbered, and deformation treatment is performed according to the numbering sequence, including: Arrange multiple monitoring points on each ring of shield segments to be rectified; Measuring the initial coordinates of the monitoring points; According to the initial coordinates, the distance between the two prisms with the largest deformation of the same ring segment and the distance between the vault prism and the ballast prism are calculated to obtain the measurement results; Dividing the shield segments to be rectified into several sections based on the measurement results, and determining the segment with the largest deformation among the shield segments to be rectified; The segment with the largest deformation is extended two rings on both sides as the initial remediation section, and the initial remediation section is numbered as zero; wherein, for the segments in the same remediation section, the remediation is carried out from large to small according to the magnitude of the deformation; Based on the initial remediation section, the left sections are numbered as odd numbers from small to large, and the right sections are numbered as even numbers from small to large; Starting from the initial renovation section, the shield segments are renovated based on the numbers from small to large.

5. The method according to claim 1, characterized in that Determining the drilling position according to the deformation direction and the deformation value includes: Determining whether the tunnel axis is offset according to the deformation direction and deformation value; When the tunnel axis does not deviate, two ends of the maximum diameter of the deformation are determined as drilling positions; When the tunnel axis is offset and the offset directions of the two points at the maximum deformation point of the same ring segment are consistent or opposite, the two ends of the maximum deformation diameter are determined as the drilling positions; When the tunnel axis is offset and the deformation amount of one end at the maximum deformation diameter is relatively small or unchanged, the end with a relatively large deformation amount is determined as the drilling position; If the recovery amount of segment convergence during renovation is greater than the preset recovery distance, an additional arch hole will be drilled in addition to the hole drilled at the location of the maximum deformation diameter.

6. The method according to claim 1, characterized in that The method of drilling holes and installing the anti-surge steel pipe according to the drilling positions, and installing the controlled area grouting bag based on the holes after drilling, includes: Drilling is performed according to the drilling position, and the drilling is stopped when the drilling is a preset distance from the bottom of the segment; Install the threaded steel pipe so that the length of the steel pipe exposed from the pipe segment is less than or equal to the preset length; After the steel pipe is firmly anchored, drilling continues in the steel pipe and stops drilling after drilling through the pipe segment; The soil behind the segment wall is cut based on the holes after drilling to form a preset space centered on the drilled hole behind the segment; Spraying quick-setting slurry onto the surface of the preset space formed by cutting; Insert the installation tube into the orifice of the control area grouting bag; Pass the control area grouting bag and the installation tube through the drilled hole, and use the installation tube to install the control area grouting bag into the preset space; Installing a grout stopper at the orifice of the control area grouting bag; The rubber bag at the front end of the stop plug is expanded by tightening the nut, so that the orifice of the control area grouting bag fits with the drilled hole wall of the segment; The connecting pipeline is ready to grout the control area grouting bag.

7. The method according to claim 6, characterized in that The step of injecting a polymer material into the control area grouting bag comprises: If the segment axis offset is less than a preset threshold, and the offset at one end of the maximum deformation diameter is less than the preset threshold or there is no offset, polymer material grouting is performed at the other end of the maximum deformation diameter; If the segment axis offset is less than a preset threshold, and the two ends of the maximum deformation diameter are offset in opposite directions, polymer material grouting is performed simultaneously at the two ends of the maximum deformation diameter; If the segment axis offset is greater than the preset threshold, and the two ends of the maximum deformation diameter are offset in the same direction, the polymer material is first grouted at the end with a relatively large offset at the maximum deformation diameter, and the other end is grouted when it is close to the theoretical position according to the real-time monitoring data; When the convergence at the maximum deformation point is greater than the preset convergence value, holes are drilled in the arch and the soil behind the segment wall is cut to allow the segment to have space for free deformation upward during the renovation process.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: Stop grouting after the slurry in the control area grouting bag solidifies; Remove the grout stopper and clear the control area grouting bag within the thickness of the segment; Drilling a hole with an electric drill to penetrate the bottom of the control area grouting bag; Install a grouting ball valve on the steel pipe and connect the pipeline to inject cement gelling material to fill the pores between the pipe segment and the stratum after the deformation of the pipe segment is rectified; Cut out the leaking steel pipe and apply waterproof material.

9. A deformation control system for shield tunnels in soft strata, characterized in that: include: The data analysis module is used to analyze the 3D laser scanning data of the shield segment, the total station measurement data and the track detection vehicle data to determine the deformation direction and deformation value of the maximum deformation point of each ring segment; The segment numbering module is used to divide and number the shield segments to be rectified, and perform deformation rectification according to the numbering sequence; A drilling module, used for determining a drilling position according to the deformation direction and the deformation value; An installation module is used to drill holes and install anti-surge steel pipes according to the drilling positions, and to install a controlled area grouting bag based on the holes after drilling; A grouting module is used to inject a polymer material into the control area grouting bag, so that the polymer material expands to fill the control area grouting bag and produces a squeezing effect on the soil and the shield segment to be treated; The monitoring and adjustment module is used to adjust the grouting flow rate and grouting time according to the real-time monitoring data of the shield segment to be rectified, so that the deformation adjustment of the segment can achieve the expected rectification goal.

10. An electronic device, characterized in that: The electronic device includes: a memory, a processor, and a soft stratum shield tunnel deformation remediation program stored in the memory and executable on the processor, wherein the soft stratum shield tunnel deformation remediation program is configured to implement the soft stratum shield tunnel deformation remediation method as described in any one of claims 1 to 8.

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