Comprehensive pipe gallery construction technology and equipment applied to silt geological condition

Abstract

The invention discloses a comprehensive pipe gallery construction technology and equipment applied to silt geological conditions, comprising at least one pair of mobile chassis arranged in pairs, the mobile chassis is connected with a control bracket, the control bracket is a frame of a rectangular structure, the control bracket is provided with a hoisting attitude control mechanism, and the hoisting attitude control mechanism is connected with the mobile chassis. A grouting connection operation mechanism is mounted on the control bracket; the invention relates to the technical field of pipe gallery construction, efficient and stable comprehensive pipe gallery construction under the silt geological condition is achieved through integrated design, the weight of equipment is dispersed through a low-grounding-specific-pressure crawler belt structure of a plurality of movable chassis, silt liquefaction is avoided, the requirement for foundation hardness of hoisting equipment is reduced, and the construction efficiency of the comprehensive pipe gallery is improved. The construction efficiency is improved, operation is saved, the hoisting mechanism achieves accurate alignment of the pipe gallery through a sliding positioning assembly, a grouting system and a universal pouring structure ensure dense filling of grout, all components work cooperatively, the positioning error is reduced, the regional pressure on the silt ground is reduced, and the overall construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe gallery construction, in particular to a comprehensive pipe gallery construction process and equipment applied to silty soil conditions. BACKGROUND

[0002] As a modern city's "lifeline passage", the comprehensive pipe gallery solves the problems of repeated excavation and serious landscape damage caused by traditional direct-buried pipelines and complex line laying process by intensively laying municipal pipelines such as power, communication, water supply and drainage, and gas in underground tunnel space. Due to its advantages in later management and convenience for urban planning, the comprehensive pipe gallery is more and more applied to modern urban construction.

[0003] As a typical soft geological structure, silty soil foundation is widely distributed in coastal, river and delta areas in China, has unique engineering mechanics characteristics, and brings severe challenges to urban underground comprehensive pipe gallery construction. Silty soil has two prominent characteristics. One is that the particles of silty soil are small and the cementation between particles is weak, and the shear strength is low, which is easy to cause shear failure under load, and is greatly affected by water content. When affected by construction disturbance or groundwater level fluctuation, the soil structure collapses rapidly and the strength decreases sharply. The other is the unity of high compressibility and low permeability. Although the permeability characteristic belongs to weakly permeable layer, under the influence of dynamic load, fine particles are prone to migrate, and the permeability deformation occurs.

[0004] Based on the characteristics of silty soil, the current shallow-buried excavation method cannot effectively deal with the settlement problem of silty soil. Therefore, more attention is paid to the combination of open excavation method and underground excavation method for silty soil construction. However, due to the settlement problem of silty soil conditions, the settlement of underground excavation method is larger, so the open excavation method is more suitable for silty soil conditions. Among the current open excavation construction methods, the construction efficiency of open excavation assembly construction method is the highest.

[0005] But in the process of silt construction, open excavation assembly construction method still faces many problems, first, in the process of open excavation construction, because the shear strength of silt is low, so the problem of unstable slope is easy to appear, second, the common assembly method in the process of open excavation construction is to adopt hoisting construction, in order to ensure that the stress of the two sides of the slope can be guaranteed in the bearing direction, it is necessary to carry out reinforcement, and the hoisting equipment needs to be away from the construction area to avoid causing landslide of the slope under the action of pressure, but this way not only needs a long construction preparation period, but also is not convenient for alignment assembly in the construction process, finally, in the process of open excavation assembly construction at the present stage, the connecting position of the pipe gallery assembly body needs to be connected, which needs to independently set the connecting construction device, not only the management work is complicated, but also the construction operation is relatively complex, such as the soft soil area assembly type comprehensive pipe gallery and its construction method disclosed in the publication No. CN109914472B, for soft soil foundation, because of insufficient bearing capacity, it is necessary to pre-treat the soft soil foundation, through a part of the column inserted into the foundation, which plays the role of pile foundation, forms a pile-slab structure after combining with the bottom plate, supports the upper load and controls the settlement, without additional reinforcement treatment of the soft soil foundation, the precast components are connected with each other through grouting in the connecting joint, forming a pipe gallery whole, which can prevent underground water leakage and has good anti-seismic effect, although it can solve the problem of low shear strength of soft soil such as silt to a certain extent, but it still needs to excavate the column additionally, and cannot solve the problem of difficult hoisting assembly in the process of silt construction and the problem of much preparation work in advance, in view of this, the above problems are studied in depth, and the case is generated. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a comprehensive pipe gallery construction process and equipment applied to silt geological conditions, which solves the problems of the prior art.

[0007] To achieve the above purpose, the present application is realized by the following technical scheme: a construction equipment of a comprehensive pipe gallery applied to silt geological conditions, comprising at least one pair of mobile chassis arranged in pairs, a control support connected to the mobile chassis, the control support being a rectangular frame, a hoisting posture control mechanism arranged on the control support, and a grouting connection operation mechanism installed on the control support; A connection adjuster is arranged on the mobile chassis, which is used to connect with the control support and adjust the posture of the control support; The two sides of the control support are provided with a pair of telescopic adjusters, the telescopic adjusters are connected with the connection adjuster through a pair of docking seats, and the bottom of the telescopic adjusters is provided with a pair of auxiliary support devices; The grouting connection operating mechanism comprises a grouting conveying pipeline, the grouting conveying pipeline is arranged on the control rack, the grouting pipeline is used for conveying the cement mortar, one side of the grouting conveying pipeline is connected with a pouring control pipeline, the pouring position is controlled through the pouring control pipeline, the other side of the grouting conveying pipeline is connected with a pressurized conveyor, the pressurized conveyor is connected with external grouting equipment, and the cement mortar is pumped into the grouting pipeline through the pressurized conveyor; The lifting posture control mechanism comprises a power control assembly, the power control assembly provides power torque, one side of the power control assembly is connected with a sliding positioning assembly, the sliding positioning assembly converts the rotary output of the power control assembly into horizontal linear motion, and a lifting connection assembly is arranged on the sliding positioning assembly and used for lifting the pipe gallery assembly.

[0008] The control support is a rectangular structure frame welded by steel pipes, a pair of reinforcing columns is arranged on the both sides of the middle section of the control support, and a plurality of pairs of reinforcing pull rods are symmetrically arranged on the upper side of the control support and connected to the pair of reinforcing columns.

[0009] The power control assembly comprises a control motor, the control motor is assembled on the control support, one side of the control motor is connected with a speed reducer, and one side of the speed reducer is connected with a coupling.

[0010] The sliding positioning assembly comprises a guide rail, the guide rail is assembled on the control support, a guide sliding block is assembled in the guide rail, a guide screw is assembled in the guide rail, the guide screw is connected with the coupling, the guide screw is engaged with the guide sliding block, the guide sliding block cooperates with the guide rail, and a plurality of travel rollers are arranged on the guide sliding block and cooperate with the guide rail.

[0011] The lifting connection assembly comprises a lifting seat, the lifting seat is connected to the guide sliding block, a plurality of traction rods are uniformly arranged on the lifting seat, the traction rods are inverted V-shaped structures, a pair of traction sleeves are arranged at the two ends of the traction rod, a plurality of pairs of pre-buried screw rods are arranged on the top of the pipe gallery assembly and correspond to the plurality of traction rods, and locking nuts are connected to the pre-buried screw rods and connected with the traction sleeves.

[0012] The grouting conveying pipeline is a hose structure, and the grouting conveying pipeline is installed on one side of the control support through a plurality of pipe seats.

[0013] The pouring control pipeline comprises a movable seat, the end of the grouting conveying pipeline is connected with the movable seat, the groove in the movable seat is a spherical structure, a movable joint is connected to the movable seat, one side of the movable joint extends out a pouring pipeline, a pouring insertion pipe is connected to the end of the pouring pipeline, and a traction handle is arranged on one side of the pouring insertion pipe.

[0014] The connecting regulator comprises a lifting guide sleeve, a guide groove is formed in the lifting guide sleeve, a lifting guide block is assembled in the guide groove, the bottom of the connecting seat is connected with the lifting guide block, the connecting seat is movably connected with the lifting guide block through a bearing, a balance instrument is arranged on the connecting seat, a vertical lifting screw is arranged between the guide groove and the lifting guide block, the vertical lifting screw is controlled by a balancing motor, the vertical lifting screw is rotated by the balancing motor according to the posture of the balance instrument, the movement of the lifting guide block is adjusted, and the connecting seat moves up and down to adjust the control support.

[0015] The telescopic regulator comprises telescopic rails, a pair of telescopic rails are arranged on the two sides of the control support, telescopic guide blocks are assembled in the telescopic rails, adjusting screws are assembled on the telescopic guide blocks, the adjusting screws are movably arranged on the control support, the adjusting screws are in threaded engagement with the telescopic guide blocks, adjusting handwheels are connected to the ends of the adjusting screws, and the telescopic guide blocks are matched with the telescopic rails. The pressurized conveyor comprises a pressurized conveying pump, the pressurized conveying pump is arranged on the mobile chassis, a conveying connector is arranged on one side of the pressurized conveying pump, and the conveying connector is connected with one side of the transverse pipe line of the grouting conveying pipe line through a flange. The auxiliary supporting device comprises an auxiliary supporting rod, the auxiliary supporting rod is of a telescopic structure, a plurality of dampers are arranged in the auxiliary supporting rod, the plurality of dampers are connected with the telescopic ends of the auxiliary supporting rod, and a plurality of supporting rollers are connected to the bottom of the telescopic ends of the auxiliary supporting rod. The pipe gallery assembly comprises a pipe gallery main body, the pipe gallery main body is a rectangular structure frame of a concrete structure, at least one pair of connecting pipe sleeves are arranged on the two sides of the pipe gallery main body, a limiting clamping sleeve is arranged on one side of the pipe gallery main body, and a matching limiting clamping block is arranged on the other side of the pipe gallery main body.

[0016] A construction process of a comprehensive pipe gallery applied to a silt geological condition, comprising the following steps: Step 1, preparation before construction: Step 1.1, on-site investigation: using a geological radar to detect the bearing capacity of a silt foundation, the stability of a slope and underground water level, marking an equipment parking area, a travel route and a foundation trench boundary; Step 1.2, equipment calibration: checking the air pressure of a mobile chassis track (standard value 0.25-0.3 MPa), the precision of a vertical lifting screw of a connecting regulator (error ≤0.1 mm), the sealing property of a grouting system (pressure test ≥0.6 MPa) and the parameter of a frequency conversion motor of a hoisting mechanism (torque range 500-2000 N·m); Step 1.3, slope pretreatment: using a vibrating compactor to compact the silt layer of the travel path of the equipment, the layered compaction thickness is ≤20 cm, and the final compaction degree is ≥95%, thereby reducing the risk of track subsidence; Step 2, equipment arrival and initial positioning: Step 2.1 Mobile positioning: The mobile chassis is operated to travel at low speed along the preset path above the foundation trench, and the crawler belt rolls to drive the overall displacement of the equipment, with a deviation of ≤5 cm from the axis of the foundation trench; Step 2.2 Braking and locking: After reaching the specified position, the crawler hydraulic braking system is started, with a braking pressure ≥1.2 MPa to ensure that the equipment does not slide; Step 3, Control the leveling and auxiliary support of the support: Step 3.1 Initial leveling: Start the balancing motor connected to the adjuster, and drive the lifting guide block with the vertical lifting screw to adjust the height of the control support. The inclinometer provides real-time feedback on the inclination data to ensure that the horizontal deviation after leveling is ≤0.8°; Step 3.2 Auxiliary support: After the control support is leveled, the hydraulic drive auxiliary support rod is extended to contact the ground, with a damper compression of ≥10 mm to absorb residual vibration. The support rollers form a double support system with the crawler belt, dispersing the lifting pressure to the inner slope; Step 4. Pipe gallery lifting and attitude adjustment: Step 4.1 Lifting connection: Transport the pipe gallery assembly to the side of the equipment, connect the traction rod and the pre-buried screw rod at the top of the pipe gallery through the locking nut, form a 4-point symmetric lifting structure, and ensure that the uniformity of the traction force is ≥90%; Step 4.2 Attitude adjustment: Start the variable frequency motor of the power control assembly, with a frequency range of 20-50 Hz. Convert the rotary torque to linear motion through the reducer and guide screw. The guide slider drives the pipe gallery to move smoothly along the guide rail. The travel roller reduces friction to ensure that the transverse displacement accuracy is ≤1.5 mm; Step 5, Precise docking and limiting of the pipe gallery: Step 5.1 Fine adjustment and alignment: Adjust the pouring pipe angle using the traction handle, and use the pipe gallery limiting sleeve and adjacent segment clamping block for mechanical limiting to ensure that the joint horizontal alignment error is ≤2 mm; Step 5.2 Attitude stability: The inverted V-shaped traction rod adapts to the attitude change of the pipe gallery, allowing a small angle deflection of the joint seat through the ring dynamic slider with spherical contact to avoid tilting; Step 6, Grouting pipe fitting and slurry delivery: Step 6.1 Pipe fitting: Slide the transverse pipe of the sliding grouting delivery pipe to the top of the joint, connect the external grouting equipment with flanges, and compress the sealing ring by ≥2 mm to ensure air tightness; Step 6.2 Slurry delivery: The pressurized delivery pump pumps in double liquid slurry (cement: water glass = 1:0.8) at a pressure of 0.4-0.6 MPa. The pressure adaptive algorithm matches the slurry flow rate and pouring progress to avoid flow interruption or overflow; Step 7, Joint compaction and quality detection: Step 7.1 Compaction: The universal joint structure of the movable seat allows the pouring pipe to rotate ±15°, the insertion joint depth is ≥55mm, the movable joint adapts to the joint direction, and the slurry filling density is ensured to be ≥98%; Step 7.2 Quality detection: The ultrasonic detector is used to check the slurry compaction, the shear strength of the slurry is ≥1.3MPa, and the anti-permeability grade is ≥P8; Step 7.3 Equipment displacement: The auxiliary support rod is retracted, the track brake is released, and the equipment is rolled to the next construction section by the roller, the travel path overlaps the previous width by ≥60cm, and the slope pressure is evenly distributed.

[0017] The present application provides a comprehensive pipe gallery construction process and equipment applied to the powder soil geological conditions. It has the following advantages: through integrated design, the present application realizes the efficiency and stability of comprehensive pipe gallery construction under powder soil geological conditions, the low ground pressure ratio track structure of multiple mobile chassis disperses the weight of the equipment, avoids powder soil liquefaction, reduces the demand for hoisting equipment for foundation hardness, improves construction efficiency and saves operation, the hoisting mechanism realizes accurate alignment of the pipe gallery through the sliding positioning assembly, the grouting system and the universal pouring structure ensure the slurry compaction, the components work cooperatively, the positioning error is reduced, the regional pressure of the powder soil surface is reduced, the overall construction efficiency is improved by at least 15%, and the dynamic deformation characteristics of the powder foundation are adapted.

[0018] 1. Dispersed bearing and slope stability technology: multiple mobile chassis are arranged on the two side slopes to effectively disperse the power demand and evenly distribute the pressure on the ground, the low ground pressure ratio design uniformly disperses the weight of the equipment to the powder foundation, avoids local excessive pressure leading to soil liquefaction, the damper of the auxiliary support device absorbs vibration during travel, cooperates with the track brake system to form a stable hoisting feeding structure, the auxiliary support device further disperses the pressure and reduces the disturbance of the dynamic settlement of the foundation to the slope, effectively solves the problem of slope instability caused by equipment settlement in powder soil, and ensures construction safety.

[0019] 2. Precise control technology for hoisting alignment: the hoisting mechanism forms a stable horizontal transverse adjustment system through the power control assembly and the sliding positioning assembly, the travel roller reduces friction, the vertical lifting screw connected with the regulator and the balance form a closed loop leveling system, the control support inclination is corrected in real time, the horizontal deviation of the equipment is ≤1°, the pipe gallery assembly body is smoothly transversely moved and the correct docking posture is maintained, the hoisting connection assembly adopts inverted V-shaped traction rod and multi-point embedded screw connection, the hoisting force is dispersed and the pipe gallery posture change is adapted, the pipe gallery joint transverse alignment error is ≤2mm, the hoisting positioning accuracy is greatly improved, and the single-section pipe gallery installation time is shortened.

[0020] 3. Grouting synchronous compact filling technology: the grouting delivery pipeline uses a hose to allow the pipeline to dynamically adapt to the joint position, the flange connection and the sealing ring ensure the air tightness when sliding, avoid slurry leakage, the spherical movable seat and the movable joint of the pouring control pipeline form a universal joint structure, allowing the pouring pipe to adjust rotation according to the position, self-adapting to the joint direction, the pouring pipe is inserted into the joint position to ensure that the slurry filling depth is greater than or equal to 50mm, the pressurized delivery device matches the slurry flow speed and the pouring progress through the pressure self-adaptive algorithm, avoids flow interruption or overflow, realizes rapid sealing of the joint, and significantly improves the convenience, speed and connection durability of the pipe gallery assembly connection construction. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a first perspective structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0022] Figure 2 It is a main view structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0023] Figure 3 It is a top view structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0024] Figure 4 It is a second structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0025] Figure 5 It is a local perspective structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0026] Figure 6 It is a connection regulator structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0027] Figure 7 It is a control support structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0028] Figure 8 It is a grouting connection operation mechanism schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0029] Figure 9 It is a side view sectional structural schematic view of the comprehensive pipe gallery construction process and equipment applied to the powder soil geological condition.

[0030] Figure 10A hoisting posture control mechanism of a comprehensive pipe gallery construction process and equipment applied to silty soil geological conditions according to the present application is shown in the figure.

[0031] In the figure: 1, mobile chassis; 2, control support; 3, hoisting posture control mechanism; 4, grouting connection operation mechanism; 5, connection adjuster; 6, pipe gallery assembly; 21, reinforcing column; 22, reinforcing pull rod; 23, telescopic adjuster; 24, butt joint seat; 25, auxiliary support device; 51, lifting guide sleeve; 52, lifting guide block; 53, bearing; 54, balance instrument; 55, vertical lifting screw; 56, balancing motor; 231, telescopic rail; 232, telescopic guide block; 233, adjusting screw; 234, adjusting handwheel; 251, auxiliary support rod; 252, damper; 253, support roller; 31, sliding positioning assembly; 32, power control assembly; 33, hoisting connection assembly; 321, control motor; 322, speed reducer; 323, coupling; 311, guide rail; 312, guide block; 313, guide screw; 331, traveling roller; 332, hoisting seat; 333, pull rod; 334, pull sleeve; 41, grouting delivery pipeline; 42, pouring control pipeline; 43, pressure delivery device; 421, movable seat; 422, movable joint; 423, pouring pipeline; 424, pouring insertion pipe; 425, pull handle; 431, pressure delivery pump; 432, delivery connection pipe; 433, flange; 61, pipe gallery main body; 62, connection pipe sleeve; 63, limit clamp sleeve; 64, limit clamp block; 65, pre-buried screw; 66, locking nut. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-10 The present application provides an embodiment: in the open excavation construction process, the silty soil has low shear strength and is prone to unstable side slope. The common assembly method mainly adopts hoisting construction, which needs to be reinforced, and the hoisting equipment needs to be away from the construction area to avoid landslides of the side slope under pressure. However, this method not only requires a long construction preparation period, but also is inconvenient for alignment assembly. The butt joint position of the pipe gallery assembly 6 needs to be connected and constructed, and the device for connection construction is independently set. Not only is the management work tedious, but also the construction operation is relatively complex.

[0034] In order to solve the above problems, the application discloses a construction equipment applied to a comprehensive pipe gallery in a silt geological condition, which comprises at least one pair of mobile chassis 1 arranged in pairs, a control support 2 connected to the mobile chassis 1, wherein the control support 2 is a rectangular frame, a hoisting posture control mechanism 3 arranged on the control support 2, and a grouting connection operation mechanism 4 installed on the control support 2. The mobile chassis 1 adopts a rubber track structure, the weight of the equipment is dispersed through low ground pressure design, silt liquefaction is avoided, anti-skid lines are arranged on the surface of the track plate to enhance the friction with the silt foundation, equipment subsidence is prevented, and the track and the control support 2 are connected through a connection adjuster 5 to form stable support; when the equipment moves, the track rolls to drive the overall displacement of the construction equipment, the control support 2 is ensured to have no displacement in the leveling process, and equipment shaking caused by ground subsidence is avoided.

[0035] The connection adjuster 5 comprises a lifting guide sleeve 51, a guide groove is formed in the lifting guide sleeve 51, a lifting guide block 52 is assembled in the guide groove, the lifting guide block 52 is connected to the bottom of a butt joint seat 24, the butt joint seat 24 is movably connected to the lifting guide block 52 through a bearing 53, a balance instrument 54 is arranged on the butt joint seat 24, a vertical lifting lead screw 55 is arranged between the guide groove and the lifting guide block 52, and the vertical lifting lead screw 55 is controlled by a balancing motor 56; the vertical lifting lead screw 55 and the lifting guide block 52 form a screw transmission pair, the balancing motor 56 controls the rotation direction of the lead screw through forward and reverse rotation, the lifting guide block 52 moves linearly along the guide groove to drive the butt joint seat 24 to adjust the height, the balance instrument 54 monitors the inclination angle in real time and feeds back signals to the balancing motor 56 to form closed-loop control, the horizontal deviation of the control support 2 after leveling is ensured to be less than or equal to 1°, the connection of the lifting guide block 52 and the bearing 53 of the butt joint seat 24 allows small-angle deflection, and the structure is prevented from being stuck due to uneven ground.

[0036] Further, a pair of telescopic adjusters 23 are arranged on the two sides of the control support 2, the telescopic adjusters 23 are connected to the connection adjuster 5 through the butt joint seat 24, and an auxiliary support device 25 is arranged at the bottom. The auxiliary support device 25 comprises an auxiliary support rod 251, the auxiliary support rod 251 is of a telescopic structure, a plurality of dampers 252 are arranged in the auxiliary support rod 251, the dampers 252 are connected to the telescopic ends of the auxiliary support rod 251, and support rollers 253 are connected to the bottom of the telescopic ends; after the control support 2 is leveled, the auxiliary support rod 251 is driven by the hydraulic pressure to be elongated to contact the ground, the dampers 252 are compressed to absorb the vibration in the equipment running process, the support rollers 253 and the tracks of the mobile chassis 1 form a double-channel moving system, the mobile chassis 1 is arranged on the outermost side slope, the auxiliary support rod 251 is arranged under the inner layer slope, the rollers roll to reduce friction when the equipment is displaced, the tracks brake and the auxiliary support rod 251 jointly bear the load during construction, the support stability is improved, the pressure of the top hoisting is effectively dispersed, the dynamic subsidence of the silt foundation is adapted, and the equipment stability is ensured.

[0037] According to the description Figure 1 -Appendix Figure 6 It can be known that the telescopic adjuster 23 comprises telescopic rails 231 arranged on both sides of the control support 2, telescopic guide blocks 232 assembled in the telescopic rails 231, adjusting lead screws 233 arranged on the telescopic guide blocks 232, the adjusting lead screws 233 movably mounted on the control support 2 and threadedly engaged with the telescopic guide blocks 232, adjusting hand wheels 234 connected to the ends of the adjusting lead screws 233, and the telescopic guide blocks 232 cooperating with the telescopic rails 231; the butt joint seat 24 is connected to the ends of the telescopic guide blocks 232, has an inverted V-shaped structure, and has ring dynamic sliding blocks movably connected with the lifting guide blocks 52 at the two ends of the bottom; the rotating adjusting hand wheels 234 drive the adjusting lead screws 233 to drive the telescopic guide blocks 232 to move transversely along the telescopic rails 231, so that the inverted V-shaped structure of the butt joint seat 24 is synchronously expanded or contracted to adapt to the distance between the pipe gallery excavation slopes in different construction processes, the ring dynamic sliding blocks and the lifting guide blocks 52 form spherical contact to allow the butt joint seat 24 to adaptively deviate in angle when adjusting the width, ensure the transverse stability of the control support 2, avoid structural distortion caused by width adjustment, and the inverted V-shaped structure can effectively disperse pressure.

[0038] According to the description Figure 1 -Appendix Figure 8 It can be known that the grouting connection operation mechanism 4 comprises a grouting delivery pipeline 41 arranged on the control rack for delivering cement mortar, one side connected with a pouring control pipeline 42 for controlling pouring position, and the other side connected with external grouting equipment through a pressurized delivery device 43. The grouting delivery pipeline 41 has a hose structure, is installed on one side of the control support 2 through a plurality of pipe seats, the pouring control pipeline 42 comprises a movable seat 421 connected to the grouting delivery pipeline 41, has a spherical inner groove, and the movable seat 421 is connected with a movable joint 422, one side of the movable joint 422 extends out a pouring pipeline 423, the pouring pipeline 423 is connected with a pouring insertion pipe 424 at the end, and one side of the pouring insertion pipe 424 is provided with a pulling handle 425; the spherical inner groove of the movable seat 421 and the movable joint 422 form a universal joint structure, the pulling handle 425 assists manual adjustment of the angle of the pouring pipeline 423, the pouring insertion pipe 424 is inserted into a joint depth ≥ 50 mm, the movable joint 422 is self-adaptive to the joint direction after insertion, ensures dense filling of the slurry to form a gap-free seal, and the spherical structure allows flexible adjustment of the direction of the pouring pipeline 423 to adapt to irregular shapes of the joint.

[0039] The pressurized conveyor 43 comprises a pressurized conveying pump 431 arranged on the mobile chassis 1, and is provided with a conveying connector 432 on one side, which is connected with the grouting conveying pipeline 41 through a flange 433; a double-liquid slurry is used, the initial setting time is 45s, and the joint shear strength after final setting is greater than or equal to 1.2MPa; the pressurized conveying pump 431 pumps the external slurry into the transverse pipeline through the conveying connector 432, the pumping pressure is adaptively adjusted, the slurry flow speed is matched with the filling speed of the pouring control pipeline 42, slurry overflow or flow interruption is avoided, the pressure adaptive mechanism ensures the stability of the grouting process, and the joint sealing effect is improved.

[0040] According to the description attached Figure 1 -attached Figure 10 It can be known that the hoisting posture control mechanism 3 comprises a power control assembly 32, which provides a power torque, and is connected with a sliding positioning assembly 31 on one side, the sliding positioning assembly 31 converts the rotary output of the power control assembly 32 into horizontal linear motion, and a hoisting connection assembly 33 is arranged on the sliding positioning assembly 31 and used for hoisting the pipe gallery assembly 6; The power control assembly 32 comprises a control motor 321 arranged on the control support 2, and is connected with a speed reducer 322 on one side, and the speed reducer 322 is connected with a connecting shaft 323 on one side; the control motor 321 adopts variable frequency speed regulation, the output torque range is adapted to pipe gallery assemblies 6 of different weights, the speed reducer 322 reduces the rotating speed and increases the torque, and the connecting shaft 323 transmits power to the guide screw 313 of the sliding positioning assembly 31, so that the motion conversion from rotation to linear motion is formed, the hoisting process is stable, the pipe gallery assembly 6 is prevented from shaking, and the variable frequency speed regulation function allows the motor to adapt to different loads and improves hoisting flexibility.

[0041] The sliding positioning assembly 31 comprises a guide rail 311 arranged on the control support 2, and is arranged with a guide sliding block 312 inside, the guide rail 311 is provided with a guide screw 313 inside, the guide screw 313 is connected with the connecting shaft 323 and is engaged with the guide sliding block 312, the guide sliding block 312 is matched with the guide rail 311, and a plurality of travel rollers 331 are arranged on the guide sliding block 312 and matched with the guide rail 311; the guide screw 313 rotates to drive the guide sliding block 312 to move along the guide rail 311, the travel rollers 331 reduce sliding friction, the guide sliding block 312 is connected with the hoisting connection assembly 33, the pipe gallery assembly 6 is driven to move synchronously, precise positioning above the foundation trench is realized, the travel rollers 331 reduce frictional resistance, and positioning accuracy is improved.

[0042] The lifting connection assembly 33 comprises a lifting seat 332 connected to the guide sliding block 312, and a plurality of traction rods 333 are uniformly arranged on the lifting seat 332. The traction rods 333 are in inverted V-shaped structure, and traction sleeves 334 are arranged at both ends of the traction rods 333. The top of the pipe gallery assembly 6 is provided with embedded screw rods 65 corresponding to the traction rods 333, and the embedded screw rods 65 are connected with the traction sleeves 334 through locking nuts 66. The inverted V-shaped structure of the traction rod 333 disperses the lifting force, and the traction sleeve 334 and the embedded screw rod 65 are fastened to form multi-point lifting through the locking nut 66. When the traction rod 333 moves with the guide sliding block 312, the inverted V-shaped structure adapts to the attitude change of the pipe gallery assembly 6, maintains the stability of lifting, avoids tilting or slipping, the multi-point lifting design balances the load distribution, and improves the safety of lifting.

[0043] The control support 2 is a rectangular structure frame welded by steel pipes, and a pair of reinforcing columns 21 are arranged on both sides of the middle section. A plurality of pairs of reinforcing pull rods 22 are symmetrically arranged on the upper side and connected to the reinforcing columns 21. The steel pipe frame and the reinforcing columns 21 form a rigid structure, the reinforcing pull rods 22 are adjusted in tightness through bolts, and force balance is formed with the lifting attitude control mechanism 3 to prevent the control support 2 from deforming and ensure the stability of the overall structure. The cooperation of the reinforcing pull rods 22 and the bolts allows dynamic adjustment of the pre-tightening force of the support to adapt to different working conditions.

[0044] The pipe gallery assembly 6 comprises a pipe gallery main body 61 which is a rectangular frame of a concrete structure. At least one pair of connecting pipe sleeves 62 are arranged on both sides, a limiting clamping sleeve 63 is arranged on one side, and a matching limiting clamping block 64 is arranged on the other side. The connecting pipe sleeve 62 is connected with external grouting equipment through a flange 433, and the limiting clamping sleeve 63 and the clamping block form mechanical limiting when the pipe gallery is connected to form a joint, which ensures the transverse alignment of the joint. The steel corrugated pipe of the connecting pipe sleeve 62 and the water-swelling sealing strip form double sealing after grouting to prevent leakage of grout and improve the durability of the joint. The mechanical limiting and the sealing structure work cooperatively to ensure the joint connection quality.

[0045] Embodiment 2: In order to match the use of the above-mentioned equipment, the application also discloses a construction process of a comprehensive pipe gallery applied to a powder soil geological condition, which comprises the following steps: Step 1, preparation before construction: Step 1.1, site investigation: using a geological radar to detect the bearing capacity of the powder soil foundation, the slope stability and the underground water level, marking the equipment parking area, the travel route and the foundation trench boundary; Step 1.2, equipment calibration: checking the mobile chassis track air pressure (standard value 0.25-0.3 MPa), the vertical lifting lead screw accuracy of the connecting adjuster (error ≤0.1 mm), the grouting system sealing property (pressure test ≥0.6 MPa) and the frequency conversion motor parameters of the lifting mechanism (torque range 500-2000 N·m); Step 1.3 Slope Pretreatment: Use a vibrating compactor to compact the top layer of the soil layer along the equipment's travel path, with a layer thickness of ≤20 cm and a final compaction degree of ≥95%, to reduce the risk of track subsidence; Step 2, Equipment Approach and Initial Positioning: Step 2.1 Mobile Positioning: Operate the mobile chassis to travel at low speed along the preset path above the foundation trench, with the track rolling driving the overall displacement of the equipment, and the travel route deviating from the foundation trench axis by ≤5 cm; Step 2.2 Brake Locking: After reaching the specified location, start the track hydraulic brake system, with a brake pressure of ≥1.2 MPa to ensure that the equipment does not slide; Step 3, Control Bracket Leveling and Auxiliary Support: Step 3.1 Initial Leveling: Start the balancing motor connected to the leveler, and drive the lifting guide block with the vertical lifting screw to adjust the height of the control bracket. The inclinometer provides real-time feedback on the inclination data to ensure that the horizontal deviation after leveling is ≤0.8°; Step 3.2 Auxiliary Support: After leveling the control bracket, extend the hydraulic-driven auxiliary support rod to contact the ground, with a damper compression of ≥10 mm to absorb residual vibrations. The support rollers form a double support system with the track, dispersing the lifting pressure to the inner slope; Step 4. Pipe Gallery Hoisting and Attitude Adjustment: Step 4.1 Hoisting Connection: Transport the pipe gallery assembly to the side of the equipment, connect the towing bar with the pre-buried screw rod at the top of the pipe gallery through the locking nut, forming a 4-point symmetric hoisting structure with a towing force uniformity of ≥90%; Step 4.2 Attitude Adjustment: Start the variable frequency motor of the power control assembly, with a frequency range of 20-50 Hz. Convert the rotary torque to linear motion through the reducer and guide screw. The guide slider drives the pipe gallery to move smoothly along the guide rail, with the travel rollers reducing friction to ensure that the transverse displacement accuracy is ≤1.5 mm; Step 5, Precise Pipe Gallery Docking and Limiting: Step 5.1 Fine Adjustment Alignment: Adjust the pouring pipe angle using the towing handle, and use the pipe gallery limiting sleeve and adjacent segment clamping block for mechanical limiting to ensure that the joint horizontal alignment error is ≤2 mm; Step 5.2 Attitude Stability: The inverted V-shaped towing rod adapts to the attitude changes of the pipe gallery, allowing a small angle deflection of the joint seat through the ring dynamic slider with spherical contact, avoiding tilting; Step 6, Grouting Pipe Adaptation and Slurry Transportation: Step 6.1 Pipe Adaptation: Move the sliding grouting pipe to the top of the joint, connect the external grouting equipment with flanges, and ensure air tightness with a sealing ring compression of ≥2 mm; Step 6.2 slurry delivery: pressurized delivery pump to pump in double liquid slurry (cement: water glass = 1:0.8) at 0.4-0.6 MPa pressure, pressure adaptive algorithm matches slurry flow rate with pouring progress, avoids flow interruption or overflow; Step 7, joint dense filling and quality detection: Step 7.1 dense filling: the universal joint structure of the movable seat allows the pouring nozzle to rotate ±15°, the insertion depth of the joint is ≥55 mm, the movable joint adapts to the joint direction, and the slurry filling density is ensured to be ≥98%; Step 7.2 quality detection: ultrasonic detector is used to check the slurry density, the shear strength of the test value is ≥1.3 MPa, and the impermeability grade is ≥P8; Step 7.3 equipment displacement: auxiliary support rod retraction, track brake release, equipment rolls through the rollers to shift to the next construction section, the overlapping width of the travel path with the previous one is ≥60 cm, and the uniform dispersion of the slope pressure is ensured.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction device for an integrated pipe corridor in silt geological conditions, comprising at least one pair of mobile chassis (1) arranged in pairs, a control bracket (2) being connected to the mobile chassis (1), and characterized in that: The control bracket (2) is a rectangular frame, a hoisting posture control mechanism (3) is provided on the control bracket (2), and a grouting connection operating mechanism (4) is installed on the control bracket (2); A connection regulator (5) is provided on the mobile chassis (1), and the connection regulator (5) is used to connect with the control bracket (2) and level the posture of the control bracket (2); A pair of telescopic adjusters (23) are provided on both sides of the control bracket (2), the pair of telescopic adjusters (23) are connected to the connection adjuster (5) via a pair of docking seats (24), and a pair of auxiliary support devices (25) are provided at the bottom of the pair of telescopic adjusters (23); The grouting connection operating mechanism (4) comprises a grouting delivery pipeline (41), the grouting delivery pipeline (41) being arranged on a control frame, the grouting delivery pipeline being used for delivering cement mortar, one side of the grouting delivery pipeline (41) being connected to a pouring control pipeline (42), the pouring position being controlled by the pouring control pipeline (42), the other side of the grouting delivery pipeline being connected to a pressurized conveyor (43), the external grouting equipment being connected via the pressurized conveyor (43), and the cement mortar being pumped into the grouting pipeline via the pressurized conveyor (43).

2. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 1 is characterized in that: The hoisting posture control mechanism (3) includes a power control component (32), the power control component (32) provides power torque, one side of the power control component (32) is connected to a sliding positioning component (31), the sliding positioning component (31) converts the rotation output of the power control component (32) into horizontal linear motion, and a hoisting connection component (33) is provided on the sliding positioning component (31) for hoisting the pipe gallery assembly (6).

3. The construction equipment for a comprehensive pipe gallery applied to silt soil conditions according to claim 2, characterized in that: The power control assembly (32) includes a control motor (321), and the control motor (321) is assembled on a control bracket (2). The control bracket (2) is a rectangular structural frame formed by welding steel pipes. A pair of reinforcing columns (21) are provided on both sides of the middle section of the control bracket (2). A plurality of pairs of reinforcing pull rods (22) are symmetrically provided on the upper side of the control bracket (2) and connected to the pair of reinforcing columns (21). A reducer (322) is connected to one side of the control motor (321), and a coupling (323) is connected to one side of the reducer (322).

4. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 3 is characterized in that: The sliding positioning assembly (31) includes a guide rail (311), the guide rail (311) is assembled on the control bracket (2), a guide slider (312) is assembled in the guide rail (311), a guide screw (313) is assembled in the guide rail (311), the guide screw (313) is connected to the coupling (323), the guide screw (313) is engaged with the guide slider (312), the guide slider (312) cooperates with the guide rail (311), and a plurality of travel rollers (331) are provided on the guide slider (312) to cooperate with the guide rail (311).

5. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 4 is characterized in that: The hoisting connection assembly (33) includes a hoisting seat (332), the hoisting seat (332) is connected to the guide slider (312), a plurality of traction rods (333) are evenly arranged on the hoisting seat (332), the traction rods (333) are inverted V-shaped structures, a pair of traction sleeves (334) are arranged at both ends of the traction rods (333), and a plurality of pairs of embedded screws (65) are arranged at the top of the pipe gallery assembly (6) corresponding to the plurality of traction rods (333), and the embedded screws (65) are connected with locking nuts (66) connected to the traction sleeves (334).

6. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 5, characterized in that: The grouting delivery pipeline (41) is a hose structure, and the grouting delivery pipeline (41) is installed on one side of the control bracket (2) through a plurality of pipe seats.

7. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 6, characterized in that: The pouring control pipeline (42) includes a movable seat (421), the end of the grouting delivery pipeline (41) is connected to the movable seat (421), the inner groove of the movable seat (421) is a spherical structure, the movable seat (421) is connected to a movable joint (422), one side of the movable joint (422) extends out of a pouring pipeline (423), the end of the pouring pipeline (423) is connected to a pouring insert (424), and one side of the pouring insert (424) is provided with a traction handle (425).

8. The construction equipment for a comprehensive pipe gallery in silt soil conditions according to claim 7, characterized in that: The connecting regulator (5) includes a lifting guide sleeve (51), a guide groove is provided on the lifting guide sleeve (51), a lifting guide block (52) is installed in the guide groove, the lifting guide block (52) is connected to the bottom of the docking seat (24), the docking seat (24) and the lifting guide block (52) are movably connected through a bearing (53), a balancing instrument (54) is provided on the docking seat (24), a vertical lifting screw rod (55) is provided between the guide groove and the lifting guide block (52), the vertical lifting screw rod (55) is controlled by a balancing motor (56), and according to the posture of the balancing instrument (54), the balancing motor (56) controls the vertical lifting screw rod (55) to rotate, thereby adjusting the movement of the lifting guide block (52), so that the docking seat (24) moves up and down to level the control bracket (2); The pipe gallery assembly (6) comprises a pipe gallery body (61), wherein the pipe gallery body (61) is a rectangular structural frame of a concrete structure, at least one pair of connecting pipe sleeves (62) are provided on both sides of the pipe gallery body (61), a limiting sleeve (63) is provided on one side of the pipe gallery body (61), and a matching limiting block (64) is provided on the other side of the pipe gallery body (61).

9. A construction process for an integrated pipe gallery in silty soil conditions, and a construction device for an integrated pipe gallery in silty soil conditions according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Pre-construction preparation: Step 1.1 Site survey: Use geological radar to detect the bearing capacity of the silt foundation, slope stability, and groundwater level, and mark the equipment parking area, travel route, and foundation trench boundaries; Step 1.2 Equipment Verification: Check the air pressure of the mobile chassis crawler (standard value 0.25-0.3MPa), the accuracy of the vertical lifting screw of the connection regulator (error ≤ 0.1mm), the sealing of the grouting system (pressure test ≥ 0.6MPa), and the parameters of the variable frequency motor of the lifting mechanism (torque range 500-2000N·m); Step 1.3 Slope pretreatment: Use a vibratory compactor to compact the surface silt layer along the equipment's path. The layered compaction thickness should be ≤ 20 cm, and the final compaction degree should be ≥ 95% to reduce the risk of track sinking. Step 2: Equipment arrival and initial positioning: Step 2.1 Mobile positioning: Operate the mobile chassis to move along the preset path at low speed to the top of the foundation trench. The crawler tracks move the entire equipment. The deviation between the moving route and the foundation trench axis should be ≤5cm. Step 2.2 Brake lock: After reaching the designated position, the crawler hydraulic brake system is activated, and the brake pressure is ≥1.2MPa to ensure that the equipment does not slip; Step 3: Control the bracket leveling and auxiliary support: Step 3.1 Initial leveling: Start the trim motor connected to the regulator. The vertical lifting screw drives the lifting guide block to adjust the height of the control bracket. The balancer provides real-time feedback on the tilt data to ensure that the horizontal deviation after leveling is ≤0.8°. Step 3.2 Auxiliary support: After the support is leveled, the hydraulically driven auxiliary support rod is extended until it touches the ground. The damper is compressed by ≥10mm to absorb residual vibration. The support rollers and crawler tracks form a double support system to disperse the lifting pressure to the inner slope. Step 4. Pipe gallery hoisting and posture adjustment: Step 4.1 Hoisting connection: transport the pipe gallery assembly to the side of the equipment, connect the traction rods to the pre-buried screws on the top of the pipe gallery through locking nuts to form a four-point symmetrical hoisting structure, and the traction force uniformity should be ≥ 90%; Step 4.2 Posture adjustment: Start the variable frequency motor of the power control component with a frequency range of 20-50 Hz. The rotational torque is converted into linear motion through the reducer and guide screw. The guide slider drives the tunnel to move smoothly along the guide track. The travel roller reduces friction to ensure that the lateral displacement accuracy is ≤1.5mm.

10. The construction process of a comprehensive pipe gallery applied to silt soil conditions according to claim 9, characterized in that: The following steps are also included: Step 5: Precise docking and positioning of the pipe gallery: Step 5.1 Fine-tune alignment: Use the traction handle to adjust the pouring pipe angle, and mechanically limit the pipe gallery limit sleeve and the adjacent section block to ensure that the horizontal alignment error of the joint is ≤2mm; Step 5.2: Stable posture: The inverted V-shaped traction rod adapts to the changes in the corridor's posture. The circular slider with spherical contact allows the docking seat to deflect slightly to avoid tilting. Step 6: Grouting pipeline adaptation and slurry delivery: Step 6.1 Pipeline adaptation: Slide the transverse pipe of the grouting delivery pipeline to the top of the joint, connect the flange to the external grouting equipment, and compress the sealing ring ≥ 2mm to ensure airtightness; Step 6.2 Slurry delivery: The pressure delivery pump pumps in a dual-liquid slurry (cement: water glass = 1:0.8) at a pressure of 0.4-0.6 MPa. The pressure adaptive algorithm matches the slurry flow rate with the pouring progress to avoid interruption or overflow. Step 7: Joint filling and quality inspection: Step 7.1 Dense filling: The universal joint structure of the movable seat allows the pouring pipe to rotate ±15°, and the insertion depth of the joint is ≥55mm. The movable joint adapts to the direction of the joint to ensure that the slurry filling density is ≥98%; Step 7.2 Quality Inspection: Use ultrasonic testing instrument to check the density of slurry, the shear strength sampling value is ≥1.3MPa, and the anti-seepage grade is ≥P8; Step 7.3 Equipment shifting: The auxiliary support rods are retracted, the track brakes are released, and the equipment is transferred to the next construction section by rolling on rollers. The travel path overlaps with the previous one by ≥60cm to ensure that the slope pressure is evenly distributed.

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