653results about "Shaft sinking" patented technology

The invention relates to the technical field of metal mine ultra-deep vertical shaft construction, in particular to an advanced pressure relief construction method for a metal mine ultra-deep vertical shaft, aims to solve the problems that the construction safety of a deep shaft is difficult to guarantee and the construction difficulty is high, and is used for a large-diameter vertical shaft with the depth exceeding 1500 m. The lithology and physical mechanics parameters of shaft surrounding rock are obtained by adopting methods such as shaft rock core logging, surrounding rock joint fissure investigation and rock mechanics tests; then mechanical properties of the shaft surrounding rock are analyzed, and shaft surrounding rock excavation disturbance stress field distribution characteristics are obtained; the supporting opportunity and the supporting thickness of the well wall concrete lining are determined, high stress accumulated in a rock mass is released through advanced pressure relief blasting, so that the stress state of the shaft surrounding rock of the non-lining section is actively regulated and controlled, the interaction between the shaft surrounding rock and the subsequent well wall concrete lining is weakened, and the construction difficulty is effectively reduced; various means such as shaft stratum transparency analysis and ground pressure disaster prevention and control early warning are adopted, and safety and high efficiency of digging and supporting construction of the ultra-deep shaft are guaranteed.

The invention relates to the technical field of mine freezing construction, in particular to a deep strong permeable fracture soft rock stratum vertical shaft frozen wall analysis method which comprises the steps that freezing points reaching the freezing temperature are collected and fitted into a freezing temperature field; dividing a freezing area according to the position of each freezing point in the freezing temperature field and the time point when the freezing point reaches the freezing temperature, and forming a freezing boundary according to the morphological characteristics of the freezing area; deriving position points at the frozen boundary according to the positions of the frozen boundary in a plurality of time periods, and checking the advancing trend of the frozen boundary according to the spacing distance and the spacing temperature gradient between the position points; based on the advancing trend of the current frozen boundary, setting a boundary condition under the advancing trend; dividing the freezing temperature field into a plurality of evaluation temperature surfaces by using the boundary condition of the current freezing boundary, iterating the freezing temperature field by using the evaluation temperature surfaces, and correcting the freezing boundary; the accuracy of freezing boundary identification is realized, and the safety and efficiency of freezing construction are improved.

The invention discloses a vertical shaft drilling machine drill bit floating ball signal transmission early warning device which comprises a box body, and the box body is installed in a drill bit of a vertical shaft drilling machine and is adjacent to a drill bit center hole in the center of the drill bit. The hob operation state sensor is arranged adjacent to the hob on the bottom surface of the drill bit and is used for generating a hob operation state signal according to the operation state of the hob; the sensing module is installed in the box body, the hob operation state sensor is in communication connection with the sensing module, and the sensing module receives and analyzes a hob operation state signal and generates a driving control instruction; and the driving module is arranged in the box body, the driving module is in communication connection with the sensing module, and the driving module receives a driving control instruction sent by the sensing module and drives the floating ball releasing module to release the floating ball according to the driving control instruction. The state of the hob can be accurately monitored in real time, effective early warning is provided, and the safety and construction efficiency of the vertical shaft drilling machine are remarkably improved.

The invention relates to the technical field of large shield launching working well construction, in particular to ultra-deep open-cut top-down construction under the rock stratum geology, and particularly relates to an open-cut top-down ultra-deep working well construction method under the rock stratum geology. The problems that in the construction process of an open-cut top-down ultra-deep working well, collapse, water leakage, instability and other risks are prone to occurring are solved, excavation is conducted to the bottom face of a top beam, then the top beam is constructed, an annular frame beam is constructed, and a waterproof layer and a side wall are constructed in the area, between the annular frame beam and the top beam, of the side wall of a foundation pit; after the last annular frame beam and the side wall reach the design strength, the foundation pit continues to be excavated downwards to the bottom face of the next annular frame beam, the annular frame beam is constructed, and a waterproof layer and the side wall are constructed in the area, between the annular frame beam and the last annular frame beam, of the side wall of the foundation pit; and after the last annular frame beam and the side wall reach the design strength, the foundation pit continues to be excavated downwards, mortar anchor rods and steel frame supports are constructed on the portion, below the coverage area of the cast-in-situ bored piles, of the side wall of the foundation pit, and then concrete is sprayed.

The invention relates to the technical field of shaft drilling machine supporting, in particular to a shaft drilling machine supporting device and a control method thereof.The shaft drilling machine supporting device comprises a supporting frame, a first positioning unit, a second positioning unit, a detection unit and a control unit, and the supporting frame is arranged above a shaft; the first positioning unit is arranged on the upper portion of the supporting frame and comprises a positioning ring, a gear disc, a driving gear, a limiting plate and a connecting rod, the second positioning unit is arranged on the lower portion of the supporting frame and comprises at least three positioning clamping assemblies evenly distributed on the lower portion of a drill rod to be installed in the circumferential direction, and each positioning clamping assembly comprises a driving mechanism and a clamping plate; the first positioning unit, the second positioning unit and the detection unit are all in circuit connection with the control unit; the problems that an existing drilling rig is single in function, manual operation judgment is needed when a drill rod deviates, a manual judgment result has large hysteresis quality, the construction perpendicularity of the drill rod is difficult to feed back in time, and the difficulty of follow-up treatment and repair of the drill rod is increased are solved.

The invention discloses a subway separation island type underground excavation station construction method. The method comprises the following steps that a vertical shaft is excavated, and a construction transverse channel connected with a pilot tunnel is excavated; pilot tunnels are constructed and supported; constructing an enclosure structure and a waterproof curtain, and constructing a top beam on the pile; an advance support and a primary support are constructed, and large arch earthwork is excavated; pouring an arch secondary lining structure; pouring the side wall and the middle plate; constructing a structural bottom plate and side walls; constructing a contact channel; and a platform plate and a rail top air duct are constructed. The method has the advantages of being safe and reliable in construction process, low in economic cost, small in environmental influence, good in passenger use attribute, high in underground space utilization rate, convenient to connect with surrounding traffic and urban space and the like, and has wide popularization prospects.

The invention provides a comprehensive advanced geological forecasting method for an ultra-deep vertical shaft of a metal mine, and belongs to the technical field of water prevention and control in construction of the ultra-deep vertical shaft of the metal mine. The conditions that a tectonic fracture zone, a high confined aquifer and the like possibly exist in the deep stratum, have construction hidden dangers and are prone to causing water burst disasters are accurately recognized, and the advanced detection precision of the deep stratum of the shaft is improved; meanwhile, a feedback forecasting process of geological analysis-geological modeling-geophysical prospecting circle target-drilling verification is formed, a multi-level verification system is constructed, the specific geological condition of an abnormal area is clearly detected, and the advanced positioning and judgment accuracy of a geological abnormal body in a deep stratum is remarkably improved; and by integrating and fusing multi-source geological information, the geological abnormal body information is comprehensively analyzed and judged, so that the requirements of deep rock mass mechanical property analysis and water inrush disaster prevention and control are met.

The invention discloses an online high-precision pose measurement and control method and system for a vertical shaft heading machine, relates to the technical field of vertical shaft construction, and solves the problems that factors considered by an existing pose measurement and control method are not comprehensive enough, the deviation correction amplitude cannot be flexibly adjusted according to the deviation, and the pose change of the heading machine after adjustment cannot be predicted. According to the technical scheme, the method is characterized in that displacement deviation, displacement deviation variable quantity, angle deviation and angle deviation variable quantity of a heading machine pose and a target pose are obtained through a pose measuring system, the deviations are decomposed into XOZ and YOZ planes and input into a combined fuzzy controller of the corresponding planes, and the pressure difference of a supporting oil cylinder and a hydraulic cylinder is obtained; constructing an input feature sequence based on the pressure difference of the supporting oil cylinder and the hydraulic cylinder, inputting the input feature sequence into a pose prediction model based on a neural network, and predicting the displacement deviation and the angle deviation of the heading machine in a future time period, so as to predict the pose change of the heading machine after the pressure difference of the supporting oil cylinder and the hydraulic cylinder is adjusted; the problems are solved.

The invention provides a deslagging device and method for vertical shaft construction, and belongs to the technical field of vertical shaft construction auxiliary equipment.The deslagging device for vertical shaft construction comprises a sliding supporting mechanism, a well mouth supporting mechanism, a rotating disc, a plurality of slag shoveling mechanisms, a plurality of transverse conveying mechanisms and a longitudinal conveying mechanism located in the middle of a vertical shaft; the sliding supporting mechanism is arranged in the vertical shaft in a sliding mode and fixed to the designated position of the shaft wall through an abutting piece. The well mouth supporting mechanism is installed at the well mouth position of the vertical shaft and provided with a lowering assembly used for lowering the sliding supporting mechanism into the vertical shaft. The rotating disc is rotationally installed on the face, facing the shaft bottom of the vertical shaft, of the supporting frame, the multiple slag shoveling mechanisms are distributed at the bottom of the rotating disc in the circumferential direction of the rotating disc, the multiple transverse conveying mechanisms are correspondingly arranged on one sides of the slag shoveling mechanisms and used for conveying the slag to the longitudinal conveying mechanism, and the longitudinal conveying mechanism is used for conveying the slag out of the vertical shaft. The slag discharging efficiency can be improved, and meanwhile the slag discharging device is not limited by slag characteristics and using conditions.

The invention discloses a duct piece structure and a construction method thereof, and solves the problems that in the prior art, a shaft duct piece structure is insufficient in bearing capacity, and the posture of a shaft cannot be adjusted. The duct piece structure comprises an outer frame, the outer supporting face of the outer frame is an opening face, a plurality of grid cavities are formed in the outer frame, bag structures capable of being filled with media are arranged in the grid cavities, and the bag structures face the opening face of the outer frame; a plurality of outer frames can be spliced into a whole segment ring, and a communication channel capable of being selectively connected and disconnected is arranged between the bag body structures of the upper and lower adjacent whole segment rings. According to the duct piece structure, an outer frame inner core structural body is formed under different media through the structure of the outer frame and the inner bag body, under the condition that the bearing capacity is guaranteed, the dead weight of a large and deep vertical shaft structure is reduced, and the strength of the vertical shaft structure is enhanced through the bag body filling / replacing medium pressure, materials and other parameters. The capsule body structure is arranged in the outer frame body in a partitioned mode, the acting force between the capsule body structure and the stratum is changed through fixed-point medium charging and discharging, and the purpose of adjusting the position and posture of the segment structure in the circumferential direction is achieved.

The invention provides blind shaft tunneling equipment, and belongs to the technical field of shaft sinking equipment. The slag pumping equipment is arranged on the slag pumping platform, and an inlet of the slag pumping equipment is connected with a slag pumping pipe; the tunneling cutterhead is connected with the slag pumping platform, the tunneling cutterhead is connected with a driving shaft, the driving shaft is of a hollow structure, and the inlet end of the slag pumping pipe extends into the bottom of the tunneling cutterhead through the driving shaft; according to the invention, the slag pumping platform is arranged, and the slag pumping equipment is arranged on the slag pumping platform, so that during construction of the blind shaft, broken stones generated by bottom excavation are fully crushed under the rotation action of the tunneling cutter head and are conveniently pumped to the slag pumping platform, efficient cleaning of the broken stones is realized, and the situation that the tunneling efficiency is reduced due to accumulation of the broken stones is avoided; therefore, the problem that slag is difficult to discharge during construction of the blind shaft is solved.

The invention relates to the technical field of tunnel construction, in particular to tunnel bottom-expanding cast-in-place bored pile construction supporting equipment which comprises a tunnel top and an excavating device body, the excavating device body is located on the tunnel top, and through the use of a punching bottom-expanding assembly and a synchronous stirring assembly, when a vertical shaft is excavated on the tunnel top, the excavating device body can be driven by the synchronous stirring assembly; excavating and bottom expanding are integrated together, the stirring belt ring is used for stirring the supporting module, the speed of the supporting module is kept consistent with the speed of vertical shaft excavating, and before supporting of the supporting module, the elastic connecting belt puns the inner side wall of the vertical shaft, the cutting tool bit trims the inner side wall of the vertical shaft, and then the vertical shaft is excavated. And the elastic connecting belt slightly knocks the inner side wall of the supporting module again, so that the tight attaching degree of the supporting module and the inner side wall of the vertical shaft is increased, and the device is more stable and reliable when the vertical shaft is excavated in an area with soft soil texture.

The utility model discloses a circular working well main body structure which comprises a cylindrical hollow side wall, a top plate located at the top is arranged at the upper end of the side wall, a bottom plate located at the bottom is arranged at the lower end of the side wall, #-shaped crossed internal partition walls are arranged in the internal space of the side wall, and the internal partition walls divide the internal space. And four shield launching and receiving holes are reserved in the lining wall on the inner side of the side wall. According to the utility model, the inverted circular lining wall and the enclosure structure form a superposed side wall, the support rigidity of an internal #-shaped crossed longitudinal and transverse beam (wall) system is large, and structural members are permanently and temporarily combined, so that the stability of the multi-hole structure of the ultra-deep circular working well is enhanced, and the formation deformation is effectively controlled. The longitudinal and transverse beam (wall) system is reasonable in space layout, plate span is reduced, a self-balancing space stress system is formed, the thickness of the top plate and the thickness of the bottom plate are small under the condition of large burial depth, the plate face is flat, arching is not needed, construction is convenient, and space utilization is reasonable.

The embodiment of the invention provides a large vertical shaft and a construction method thereof, and belongs to the technical field of underground constructions.The vertical shaft comprises a shaft body formed by splicing a plurality of segments; the top ring beam is annular and is arranged on the outer side surface of the top of the shaft; the uplift piles are arranged below the top ring beam in the depth direction of the vertical shaft and located on the outer side of the shaft; the bottom end of the uplift pile is lower than the bottom end of the shaft and is integrally connected with the bottom end of the shaft in a pouring mode. The top ends of the uplift piles are fixedly connected with the top ring beam; the horizontal distance between the uplift pile and the outer side face of the shaft is smaller than or equal to the pile diameter of the uplift pile. According to the large vertical shaft and the construction method thereof, the uplift piles, the top ring beam fixed to the stratum and the shaft are fixedly connected into the integrated structure, buoyancy caused by underground water on the periphery of the deep vertical shaft can be resisted, and the large vertical shaft and the construction method thereof can be suitable for building the ultra-large and ultra-deep vertical shaft with the diameter being 16 m or above and the depth being 50 m or above.

This application provides a large vertical shaft and its construction method, belonging to the field of underground construction technology. The shaft includes: a shaft cylinder composed of multiple ring segments; a ring-shaped top beam located on the outer side of the top of the shaft cylinder; and tension piles positioned below the top ring beam and outside the shaft cylinder along the shaft's depth direction. The bottom of the tension piles is lower than the bottom of the shaft cylinder and is cast integrally with it. The top of the tension piles is fixedly connected to the top ring beam. The horizontal distance between the tension piles and the outer side of the shaft cylinder is less than or equal to the pile diameter. The large vertical shaft and its construction method provided in this application integrate the tension piles, the top ring beam fixed to the ground, and the shaft cylinder into a single structure, capable of resisting the buoyancy caused by groundwater surrounding a deep shaft. This method is suitable for constructing ultra-large and ultra-deep vertical shafts with diameters exceeding 16 meters and depths exceeding 50 meters.

A fluidized coal mining method using energy storage of a coal seam, comprising the steps of mine shaft development, active coal uncovering, and fluidized coal mining. According to the method, a dynamic phenomenon is induced by means of active coal uncovering, a coal mining borehole (12) is established from the ground to a coal seam (1), hydraulic in-situ cutting is performed on the coal seam (1), a coal-rock mixture produced after hydraulic cutting flows into a roadway system along a floor roadway (4), and then coal, gangue, and water in the mixture are separated and are recycled in the subsequent coal mining process, achieving underground unmanned fluidized coal mining, and high crushing of coal bodies is achieved in the active coal uncovering process, thereby making hydraulic coal mining more efficient, and reducing the water resource consumption in the coal mining process.

The invention provides vertical shaft construction equipment and a construction method. The vertical shaft construction equipment comprises a cutting device for cutting a rock soil body; the drilling rod is vertically arranged, and the drilling rod is connected with the cutting device so as to drive the cutting device to rotate; the shield body is connected with the multiple vertical shaft pipe joints in a matched mode to form a barrel-shaped structure with the top sealed and the bottom open, at least part of the drill rod is located in the barrel-shaped structure, and the cutting device is located at the top of the barrel-shaped structure; and the jacking device is arranged below the shield body so as to push the shield body and the cutting device to synchronously move upwards. The vertical shaft construction method solves the technical problems that a vertical shaft construction technology cannot conduct vertical shaft construction of the deep-buried hard stratum, the construction cost is high, and the working procedures are tedious.

The invention relates to a device for creating a cavity in the ground, comprising at least one excavation tool for loosening rock or soil from a surface to be removed within the cavity to be created, wherein the at least one excavation tool for loosening the rock is arranged on at least one pivot arm movable relative to the surface, and wherein the device comprises at least one microwave device for generating and emitting microwaves into the rock of the surface, which has at least one applicator for introducing the microwaves into the rock, and wherein the at least one applicator is movable relative to the surface separately from the excavation tool relative to the surface to be removed, characterized in that the at least one applicator is connected to a movement element that is movable on a guide.so that at least one applicator on the guide around the mining tool can be moved separately from the movement of the mining tool.

The invention discloses a vertical shaft excavation construction method, a vertical shaft to be excavated is divided into a first vertical shaft to be excavated and a second vertical shaft to be excavated, and the construction method comprises the following construction steps that S1, an upper flat tunnel is excavated and constructed to the bottom of the first vertical shaft to be excavated to form a first cross section, the lower flat tunnel is excavated to the bottom of the second vertical shaft to be excavated to form a second cross section; s2, a section of the lower portion of the first shaft to be excavated serves as a protection section to be reserved, and construction is conducted on the top of the first shaft to be excavated to the top of the protection section through a normal well method; a slag sliding pilot shaft is constructed downwards along the axis of the second vertical shaft to be excavated through a raise-boring method; s3, after the slag sliding pilot shaft construction is completed, the protection section continues to be constructed to the first cross section through the normal well method; and S4, a second vertical shaft is planned to be excavated to a second cross section through inverse well construction by adopting construction equipment of a normal well method. According to the vertical shaft excavation construction method, the technical problem that the construction difficulty of the deep and large vertical shaft is high is solved.

The invention discloses a vertical shaft and inclined shaft non-blasting excavation construction method and a working platform. A guide shaft space is constructed through mutual cooperation of a forward drilling machine and a raise boring machine; measuring and setting out the section, determining the construction footage, and generating drilling coordinates according to the geometrical relationship between the pilot well space and the tunnel face; according to a preset rule, splitting hole sites of a staggered hole net are arranged on the outer edge and the interior of the section; according to the drilling coordinates and the splitting hole positions, splitting the rock mass through a splitting rod according to preset parameters; collecting and obtaining hole periphery convergence data in real time, and correcting the construction footage according to the data feedback; collecting the slag charge of the tunnel face to a guide well mouth through mechanical slagging-off operation, and sliding the slag through the guide well; and carrying out primary support and updating support parameters in real time, and entering the next cycle footage after updating is completed. The requirements for low disturbance, early supporting, high safety and high efficiency can be met, adaptation to complex working conditions is achieved through unmanned and remote centralized control, and therefore the construction requirements under the complex working conditions are met.

The invention provides a pipe jacking working well construction method for soft clay geology. The pipe jacking working well construction method comprises the steps that S1, replacement filling and cushion layer construction are conducted in a construction area corresponding to a working well; s2, a formwork is erected for blade foot pouring, S3, excavation is conducted from the middle of the open caisson to the periphery in a layered mode, the open caisson is filled with backfill sand for back pressure after final sinking, and well wall heightening is conducted after backfill; s4, after the backfill sand is cleaned, sinking and heightening are carried out for multiple times until excavation is carried out to a preset elevation; s5, riprapping and leveling the well bottom, and then moving from the well edge to the middle for layered pouring to form a back cover; and S6, after water pumping is completed, reinforcing steel bars are bound, concrete is poured, and a bottom plate is formed. The mode that symmetrical excavation is conducted and soil bodies are reserved along the periphery of a blade foot to form a soil embankment is adopted, the well wall evenly sinks under the action of self weight, and the problems that the well wall inclines and cracks are caused by uneven sinking are avoided.

The invention relates to the field of open caisson construction equipment, in particular to a vertical shaft tunneling robot and a press-in type open caisson soil borrowing device.The vertical shaft tunneling robot comprises a rack and a vertical shaft tunneling mechanism, a vertical shaft tunneling front-back driving mechanism is arranged between the rack and the vertical shaft tunneling mechanism, and the vertical shaft tunneling front-back driving mechanism comprises a front-back driving cylinder; a vertical shaft tunneling mechanism is arranged on the machine frame, a slurry conveying mechanism is arranged on the vertical shaft tunneling mechanism, a sliding ring underwater protection mechanism is arranged between an excavation mounting seat and an excavation rotating seat, and a machine frame rotating mechanism and a rotating locking mechanism are arranged on the machine frame. The press-in type open caisson soil taking device comprises an open caisson, and an open caisson pressing-down driving mechanism is arranged on the outer side of the open caisson. The vertical shaft tunneling robot is arranged in the open caisson, the annular fixing base is connected with the inner wall of the open caisson in an up-down sliding mode through the guide wheels and the guide sliding ways, the open caisson downward-pressing driving mechanism comprises a center-penetrating hydraulic cylinder, a supporting frame, a steel strand and an uplift pile, and the vertical shaft tunneling robot is novel in structure, large in excavation range, high in flexibility, good in stability, high in working efficiency and low in cost.

The invention discloses an upside-down well excavation construction method based on hanging type movable supporting of a formwork supporting system. The upside-down well excavation construction method is characterized by comprising the following steps that S1, the formwork supporting system is prefabricated; s2, a first section of well body and a first section of well wall are constructed; s3, earth excavation under template in-situ support is conducted, specifically, after concrete of the first section of well wall reaches initial set, excavation of the second section of well body and the second section of well wall is directly conducted, and a template supporting system is not dismantled; s4, synchronous construction of steel bar binding and movable supporting is conducted; s5, concrete pouring is conducted, specifically, concrete pouring construction of the second section of well wall is conducted; and S6, the step S3, the step S4 and the step S5 are cyclically repeated until the designed position of the bottom of the upside-down well is reached. The problems that in the excavation and support construction process of the upside-down hanging well, due to the fact that a formwork and a supporting system are repeatedly dismantled and lifted up and down for multiple times, excavation and support cannot form synchronous line production, and the construction period and construction safety cannot be guaranteed are solved.

The invention discloses an underwater tunneling pose measurement and control method and system for an open caisson type vertical shaft heading machine, and the method comprises the steps: before the open caisson type vertical shaft heading machine is installed, installing a pipeline rack and at least three groups of recovery winch systems for suspending the heading machine, correspondingly installing a pose measurement and control assembly of the open caisson type vertical shaft heading machine, and setting an early warning value; the heading machine pose measurement and control assembly comprises a pull rope displacement sensor, an accelerometer, a gyroscope and a controller; in the process of executing pose measurement and parameter calculation operation, coordinate correction after heading motion state data of the heading machine is considered, and data of an accelerometer and a gyroscope are fused to correct the heading pose of the open caisson type vertical shaft heading machine. Automatic measurement of the open caisson type vertical shaft heading machine under the non-drainage condition can be achieved, real-time deviation rectification is achieved, the heading precision is improved, the authenticity and reliability of the heading direction of the open caisson type vertical shaft heading machine are ensured, real-time deviation rectification is conveniently achieved, and the heading precision is improved.

The utility model relates to a vertical shaft heading machine quarrying device and a vertical shaft heading machine, the vertical shaft heading machine quarrying device is arranged between a slurry pump and a slag suction box of the vertical shaft heading machine, the vertical shaft heading machine quarrying device comprises: a slurry discharge pipeline, which is respectively connected with the slurry pump and the slag suction box in an on-off manner; the stone falling pipeline is arranged on the side wall of the slurry discharging pipeline, the stone falling pipeline is at least provided with a stone slag inlet and a stone slag outlet, and the stone slag inlet is communicated with the interior of the slurry discharging pipeline; the stone storage box is at least provided with an inlet and an openable and closable discharge port, and the inlet is communicated with the slag stone outlet; at least part of stone slag entering the slurry discharging pipeline from the slag suction box can enter the stone storage box through the stone falling pipeline, and the stone slag stored in the stone storage box is discharged by conducting the discharging port. The utility model solves the technical problem that the slurry discharge pipe is easily blocked or the slurry pump is easily damaged by the slag stone.

The invention discloses a drill rod tension type vertical shaft tunneling process which comprises the following steps: constructing a pilot shaft into a stratum by utilizing a raise boring machine, constructing a starting shaft, sequentially hoisting a tunneling machine and a hanging scaffold system into the starting shaft by utilizing hoisting equipment, and driving a tension drill rod to sequentially penetrate through the hanging scaffold system and the tunneling machine by utilizing the raise boring machine, and the tunneling machine continues to be lowered into the lower horizontal roadway and is fixed through the drill rod tensioning device, the tunneling machine starts to conduct tunneling circulating operation downwards along the tension drill rod through the stepping mechanism, and the hanging scaffold system conducts well wall supporting circulating operation downwards along the tension drill rod through the stepping mechanism till the tunneling machine conducts tunneling to the lower horizontal roadway. The tension drill rod serves as a main fixing structure and can bear the weight of the heading machine, the rock breaking positive pressure and the weight of the hanging scaffold, and the heading effect is supported not to be affected and limited by the stratum; the tension drill rod provides guidance, and the tunneling machine is guided on a correct tunneling path in real time, so that the construction efficiency and the tunneling well completion quality are improved.

The invention discloses an underground receiving method of a vertical shaft heading machine, and belongs to the technical field of vertical shaft construction. Comprising the following steps that S1, a lower adit is excavated below a pre-construction position; s2, a slag slipping well is excavated in the corresponding pre-construction position of the lower adit through a directional drill and a raise boring, and a rock mass is reserved on the side wall of the slag slipping well; s3, after the slag sliding well is excavated, the original well is excavated through a manual drilling and blasting method, and then a vertical shaft heading machine conducts downward excavation and reaming on the upper portion of the original well; s4, in the downward digging process of the vertical shaft heading machine, slag is piled at the junction of the slag slipping well and the lower adit; and S5, the vertical shaft heading machine penetrates to the lower adit. The tunneling parameters of the vertical shaft tunneling machine are adjusted, and slag is piled to the slag slipping well in the lower adit, so that the tunneling machine is ensured to smoothly penetrate to the lower adit.

The invention belongs to the technical field of open caisson control, and discloses a tunneling and bottom sealing method for a super-large-section vertical shaft, a first tunneling machine is adopted for tunneling an outer ring area of the bottom of the shaft along a sliding rail, a second tunneling machine is adopted for rotatably tunneling an inner ring area around the central axis of a rotary disc, the tunneling range is effectively expanded, and the construction requirement of the super-large-section vertical shaft is met; wherein the ring beam is pre-embedded around the upper part of the inner wall of the blade foot to support the arrangement of the slide rail and ensure the stable operation of the first heading machine; the working radius of the central operation platform is adjusted through the telescopic second heading machine so as to adapt to heading areas of different sizes, and the supporting legs can be stably clamped to the ring beam to maintain the stability of the central operation platform; according to the area ratio of the inner ring area to the outer ring area, the tunneling speed of the first tunneling machine and the second tunneling machine is adjusted, and the excavation consistency is guaranteed; the brush arm machine slides along the sliding rail and drives the brush head to be attached to the side wall of the blade foot for cleaning, it is ensured that no impurity is attached to the side wall of the blade foot, and structural hidden dangers caused by local weakness of the back cover are avoided.

The invention provides a self-weight lower deslagging construction technology of a road tunnel vertical shaft heading machine, and relates to the technical field of tunnel vertical shaft construction. Stable conversion of the deslagging process is achieved through the dynamic regulation and control technology, a progressive pressure reduction strategy is adopted to adjust tunneling parameters in four stages to enter the position above a raise-boring working chamber (thrust is decreased from 14000kN to 8000kN, torque is decreased from 3000kNm to 2000kNm), step changing is conducted by reasonably utilizing the positions of a supporting shoe, a stabilizing shoe and a cutterhead relative to an auxiliary transverse channel, and the tunneling efficiency is improved. Therefore, the conversion preparation of the tunneling process is completed.

The invention relates to a space-limited originating shaft interval tunnel mechanical combination tunneling construction method, which comprises the following steps of: 1, formulating a construction technical scheme according to the actual condition of a construction site; step 2, excavating a starting well and constructing a main body structure of the starting well; 3, excavation construction of the stepping hole in the tunnel is conducted; 4, shield / TBM ground facility construction is carried out; and 5, constructing and installing an expansion section of the shield launching reaction frame and the like. The construction method has the advantages that the interval tunnel adopts the combined tunneling mode of the hydraulic breaking hammer modified by the large and small arms, the shield tunneling machine and the TBM, the problems that the site construction condition is limited and the geological condition is complex can be effectively solved, TBM construction is carried out after the shield tunnel is communicated, a matched trolley behind TBM equipment is stored in the shield tunnel, and the construction efficiency is improved. The situation that most of rear matched trolleys are placed on the ground for large split starting, equipment is completely assembled in a well at a time, small split starting is carried out in a hole is avoided, shield / TBM refitting is reduced, and the tunnel construction progress is remarkably improved.