203 results about "Tube well" patented technology

To provide a deep well filtering structure that effectively prevents the subsidence and collapse of the well wall. [Solution] The deep well filtration structure of this invention includes a surface loess layer 1 and a well channel 7, with a concrete well side 8 poured onto the surface of the surface loess layer, a reinforced concrete permeable pipe and a reinforced concrete solid pipe 10 installed in sequence inside the well channel, a well pipe pallet 6 placed at the bottom end of the well channel, and below the surface loess layer, in sequence, a gravel-mixed loess layer 2, a gravel layer 3, a crushed stone-mixed loess layer 4 and an underground loess layer 5, and a clay ball-filled sealing layer 9 filled between the surface loess layer, the gravel-mixed loess layer and the reinforced concrete solid pipe.

A method for simulating cross-seasonal heat storage of a buried pipe well group in a geothermal reservoir is characterized in that hot water and cold water are respectively injected in different seasons by arranging different injection ports in a countercurrent cross injection mode, so that a relatively balanced temperature distribution pattern of a'hot area 'and a'cold area' is formed in a stratum, and the volume structure of a buried pipe is simplified into a line unit model; discretizing the pipeline area by adopting a finite element method; on the basis, initial temperature field distribution of soil and initial parameters of fluid in a buried pipeline unit are set, a proper numerical solution method is selected to solve the pipeline unit model, and the stability of the calculation process and the accuracy of the result are ensured through real-time monitoring; in order to further analyze the influence of underground water seepage on the system performance, an underground water seepage module is introduced, and the difference between summer refrigeration and winter heat supply effects under the seepage condition or not is compared and researched; the invention further comprises a system, equipment and a storage medium for implementing the method.

The invention provides a coastal area foundation pit dewatering system and method, and belongs to the technical field of foundation pit dewatering, the coastal area foundation pit dewatering system comprises a foundation pit, a plurality of light well points, a deep tube well and an electroosmosis auxiliary module, and the light well points are annularly arranged in a shallow layer area on the periphery of the foundation pit; the deep tube well extends to a deep area from the ground; and a plurality of electro-osmosis auxiliary modules are arranged in the peripheral clay layer area of the foundation pit. The annularly-arranged light well points evenly intercept shallow underground water around the foundation pit, the deep pipe wells can rapidly reduce the deep underground water level, and the drainage problem of a low-permeability clay layer area is effectively solved through the synergistic effect of the arranged electro-osmosis auxiliary modules and the well points / pipe wells; the synchronous precipitation uniformity of the complex soil layer is improved, layered targeted precipitation design is adopted in a shallow area, a deep area and a clay layer area, and the overall precipitation efficiency is improved. According to the foundation pit dewatering system in the coastal area, the problem that in the prior art, in the environment with complex hydrogeological conditions, the dewatering efficiency of a single dewatering measure is low is solved.

The utility model discloses a device for preventing water leakage of a pipe opening of an electric power pipe well, and belongs to the technical field of water seepage prevention construction.The device comprises the electric power pipe well, an embedded pipe is embedded in the outer wall of one side of the electric power pipe well, a cable is arranged in the embedded pipe, and a well lid is placed at the top of the electric power pipe well; a limiting block is arranged at the position, below the well lid, in the electric tube well, and limiting grooves are symmetrically formed in the positions, on the two sides of the limiting block, of the inner wall of the electric tube well; according to the electric power tube well, the limiting groove is formed, the adjusting block and the limiting block are limited and fixed in the electric power tube well, then the well lid, the waterproof cover and the extrusion block can be sequentially connected to the connecting rod in a sleeving mode, the waterproof cover can be clamped to the top of the electric power tube well by screwing the fixing ring, and therefore the connecting position of the electric power tube well and the well lid is sealed; part of rainwater is prevented from flowing into the power tube well from a gap between the power tube well and the well lid, so that it is ensured that the cable is in a safe environment, and the cable is prevented from being damaged.

A method for simulating heat storage of a buried pipe well group in a geothermal reservoir adopts staggered arrangement to replace traditional sequential arrangement, so that the distance between buried pipes is more reasonable, heat interference is minimized, the volume shape of the buried pipes is simplified into a linear unit structure, pipeline volume units are dispersed by adopting a finite element method based on various theories, and the heat storage efficiency of the buried pipe well group is improved. The calculated amount is reduced; and fluid heat transfer characteristics in the pipeline are accurately captured. Then setting soil initial temperature field distribution and initial parameters of fluid in a buried pipeline unit, solving a pipeline unit model by adopting a proper numerical calculation method, and performing real-time monitoring to ensure that a calculation result is stable and accurate; factor sensitivity analysis is carried out by changing in-well parameters and operation parameters, the influence of rock-soil body thermophysical parameters and buried pipe heat exchange characteristic factors on the geothermal reservoir thermal exploitation efficiency is comprehensively researched, and a scientific basis is provided for optimal design and operation of a buried pipe well group. The invention further comprises a system, equipment and a storage medium for implementing the method.

The invention relates to the technical field of rock stratum fracturing monitoring, and discloses a hydraulic fracturing underground fluid monitoring method based on steel cased well electromagnetic exploration, a terminal and a readable storage medium. The method comprises the steps that waveform voltage is injected into a monitoring area to generate an excitation electric field; acquiring electric field data of a plurality of dominant measuring points, wherein the plurality of dominant measuring points are located in a set range of any steel cased well in the monitoring area; and generating a hydraulic fracturing underground fluid distribution model according to the electric field data. According to the method, the electric fields of the dominant measuring points around the steel cased well are obtained, due to the fact that ground electric field or magnetic field anomalies caused by underground resistivity changes mainly appear around the well mouth under the condition that the steel cased well exists, the anomalies caused by underground fracturing fluid can be more effectively captured through fewer receiving measuring points, the signal-to-noise ratio of data is high, and the accuracy of the data is improved. Therefore, the search efficiency is high, the operation is stable, and misleading by noise is not easy to occur.

The invention discloses a sand-avoiding anti-blocking gutter inlet device suitable for desert photovoltaic and wind power bases. Comprising a rain grate, a well body, a well chamber and a gutter inlet pipe, the structure is characterized in that: (1) the gutter inlet pipe is an upper sand-avoiding gutter inlet pipe which is arranged at the upper part of the side wall of the well body and can avoid desilting at the lower part of the well chamber; a sand blocking groove capable of blocking rain and sand from flowing into the well chamber is additionally formed in the outer wall of the well body; (3) the rain grate is a sand blocking and shielding type rain grate; (4) a hand-held well container is arranged in the well chamber, and a hand-held groove container is arranged in the sand blocking groove, so that wet sand, seedlings and grass are convenient to clean; and (5) a rat-proof and mosquito-repellent valve is arranged on the sand blocking groove. The invention has the advantages that: (1) wind sand and rain sand can be prevented from flowing into a well chamber and a rainwater pipe network to possibly cause waterlogging to erode power generation equipment; (2) the water collection effect can be improved; mice and mosquitoes can be prevented from going in and out of the well chamber to propagate and spread diseases. The sand-avoiding anti-blocking gutter inlet device serves as a starting part of a rainwater pipe network and is suitable for being used when rainwater collecting facilities are built and the rainwater pipe network is laid in desert photovoltaic and wind power bases.

The utility model discloses a tube well pipeline assembly type installation structure which comprises a plurality of tube well pipeline assembly units which are sequentially spliced in the vertical direction, and each tube well pipeline assembly unit comprises a supporting plate, a plurality of sleeves arranged on the supporting plate, a pipeline arranged in the sleeves, a pipe joint arranged at the end of the pipeline and a support fixedly arranged on the outer side of the pipeline. The support is fixedly connected with a building wall through a fastener. The tube well is assembled in a prefabricated manufacturing and on-site mounting mode, and is poured synchronously with a building main body, so that the construction period is short, the construction cost is reduced, the structural stability is high, the construction operation is convenient, and the practicability is high.

The utility model discloses an underneath-penetrating buried section tunnel drainage structure which comprises a water collecting pipe buried at the bottom of a tunnel, a connecting opening is formed in the water collecting pipe, a downcast pipe well is connected to the connecting opening in a threaded mode, a connecting sleeve is arranged outside the connecting opening in a sleeving mode, an elastic piece is arranged between the connecting sleeve and the connecting opening, and a connecting rod is arranged on the inner wall of the connecting sleeve. The connecting rod penetrates and extends into the connecting port, and the connecting rod is connected with a detection ball through an inhaul cable. When the downcast tube well is installed on the water collecting pipe, if the water collecting pipe is in a deflection state, the detection ball can pull the connecting sleeve to bounce through the connecting rod, so that the connecting sleeve and the connecting port are in a non-concentric state, and normal screwing of the downcast tube well at the connecting port is hindered. Compared with the prior art, when the drainage structure is installed, the water collecting pipe can be prevented from being in an inclined state, and therefore the situation that a water inlet of the downcast tube well deviates from the center of the bottom of the tunnel is not prone to occurring.

The present invention provides a groundwater over-exploitation early warning system and a groundwater level monitoring method, wherein the groundwater over-exploitation early warning system includes a pipe well, a well cover, a gas pressure sensor, a control component, an alarm component, and a gas compensation component; the lower end of the pipe well is provided with a water inlet, and the upper end is a wellhead; the well cover is provided on the wellhead of the pipe well and is sealed with the pipe well; the gas pressure sensor is provided in the pipe well; the control component is communicatively connected to the gas pressure sensor; the alarm component is communicatively connected to the control component; the gas compensation component is connected to the pipe well and is electrically connected to the control component to compensate for changes in the total amount of gas in the pipe well caused by the respiration of microorganisms in the pipe well. The groundwater level monitoring method uses the above-mentioned groundwater over-exploitation early warning system to measure the groundwater level. The groundwater over-exploitation early warning system and the groundwater level monitoring method provided by the present invention can monitor the groundwater level when the pipe well is closed.

The utility model provides a waterproof structure for construction of an ultra-deep foundation pit in an urban updated industrial factory building. The waterproof structure for construction of the ultra-deep foundation pit in the urban updated industrial factory building comprises a secant pile body, and a steel pipe pile support is arranged outside the secant pile body; a tube well is arranged on the outer side of the steel pipe pile support. According to the technical scheme, preliminary waterproofing is achieved through tight meshing of the secant pile body; the waterproof performance is improved through the reinforcing effect of the steel pipe pile support; the water level in the foundation pit and the leakage risk are reduced under the assistance of dewatering of the tube well; and finally, construction of multiple waterproof barriers is achieved, and construction safety and foundation pit stability are ensured.

The application relates to the technical field of water conservancy engineering foundation pit pipe well landfill, and particularly discloses a water conservancy engineering foundation pit pipe well landfill construction method, which specifically comprises the following steps: early preparation, construction preparation, landfill operation and post-treatment. The water conservancy engineering foundation pit pipe well landfill construction method is also used in a water conservancy engineering foundation pit pipe well landfill construction device, which comprises a fixing mechanism and a moving mechanism. According to the cooperation between the fixing mechanism and the moving mechanism, the filling material of the foundation pit can be filled layer by layer during the process of filling the foundation pit pipe well. The filling material is continuously filled layer by layer, and the filling process can be vibrated, so that the filling material is uniformly distributed and compacted, the filling layer has better stability, the continuous layer-by-layer filling method can make the landfill operation more standardized, and the filling work can be more efficiently completed.

The utility model discloses vertical pipe hoisting equipment for a super high-rise pipe well, which comprises a bearing rod, a limiting cover arranged at the upper part of the bearing rod, a bearing bottom support arranged at the bottom of the bearing rod, the bearing bottom support comprises a circular mounting block, turnover brackets arranged on two sides of the mounting block, a limiting block fixedly arranged at one end of each turnover bracket, and connecting pieces arranged on two sides of the mounting block. The connecting pieces are connected with the overturning brackets through rotating shafts, a supporting plate is embedded in the bottom of the mounting block and connected with the mounting block through screws, and the two ends of the supporting plate clamp the bottoms of the two overturning brackets respectively; the hoisting device has the advantages of being simple in structure, convenient to support and fix the tube well stand column and stable in hoisting.

The utility model discloses a rear assembly type building integrated tube well system. The rear assembly type building integrated tube well system is composed of a bearing sleeve system, a prefabricated assembly type tube well wallboard system, a solar lighting system and an identification system. The bearing sleeve system comprises a bearing sleeve, a flame-retardant material inner pipe and a wedge-shaped clamping piece; the bearing sleeve is an inverted conical structure pipe; the bottom of the bearing sleeve is mounted in a reinforced concrete structure floor slab; the bearing sleeve and the floor slab structure are synchronously poured and fixed; the height of the bearing sleeve is slightly greater than the thickness of the floor; the diameter of the bearing sleeve is larger than that of a vertical pipeline penetrating through a floor. A plurality of square clamping grooves are formed in the inner wall of the bearing sleeve at equal intervals, and the clamping grooves are used for installing and fixing wedge-shaped clamping pieces; the utility model has the advantages that the operation difficulty caused by narrow space in the tube well construction can be improved, the daily maintenance and use are considered at the same time, the standardized construction and intelligent use of the tube well are realized on the project, and the quality and the function of the traditional building tube well are improved.

The utility model relates to a raft inner downcast tube well multifunctional plugging cap which comprises a plugging cap body, the plugging cap body is cylindrical, the upper end of the plugging cap body is sealed, the lower end of the plugging cap body is open, and a valve is arranged in the middle of the upper end of the plugging cap body. A plurality of water stop steel plates with outer edges turned downwards are sequentially arranged on the periphery of the middle of the plugging cap body from top to bottom, and a circle of expansion water stop strips are arranged at the lower ends of the water stop steel plates around the plugging cap body. According to the multifunctional plugging cap, plugging of the downcast tube well and recycling of the tube well can be achieved, the plugging efficiency and the plugging quality of the tube well can be effectively improved, in addition, after the multifunctional plugging cap is adopted, the tube well can be converted into a construction water well, and the multifunctional plugging cap can be suitable for different construction water use scenes by being combined with valves of different sizes.

The utility model relates to a kind of pneumatic precipitation monomer double-cavity water storage replacement device, including the upper water storage cavity and lower water storage cavity being arranged in tube well, the pressure sensor is separately arranged in the bottom of upper water storage cavity, lower water storage cavity, first water inlet check valve is equipped in the side of upper water storage cavity, second water inlet check valve is equipped in the side of lower water storage cavity, first water pipeline and second water pipeline that respectively extend into the bottom of upper water storage cavity and lower water storage cavity are respectively equipped in the side of the top of upper water storage cavity, first gas pipeline and second gas pipeline that respectively extend into the top of upper water storage cavity and lower water storage cavity are respectively equipped in the other side of the top of upper water storage cavity, check valve is respectively equipped in the outer leakage part of first water pipeline and second water pipeline and is jointly connected with a drain pipe, solenoid valve is respectively equipped in the outer leakage part of first gas pipeline and second gas pipeline and is jointly connected with an air inlet pipe.The utility model realizes the continuous work of drainage and water inlet, and greatly improves precipitation effect.

The present invention discloses a hybrid pipe and method for deep well dewatering, which belongs to the field of deep well dewatering equipment. The pipe comprises an outer sleeve, an inner sleeve, and a connecting pipe. The inner sleeve is detachably mounted inside the outer sleeve. At least one through hole is provided on the outer wall of the inner sleeve. The interior of the inner sleeve communicates with the interior of the outer sleeve through the through hole. A blocking block is mounted on the connecting pipe. The connecting pipe passes through the entire blocking block. The blocking block is slidably mounted inside the inner sleeve, and the upper end of the connecting pipe slides through the upper end face of the outer sleeve. A vent pipe is provided on the outer wall of the inner sleeve. A plurality of exchange holes are provided on the top of the outer sleeve. The vent pipe extends through one of the exchange holes to the outside of the outer sleeve. Through the above structure, it is possible to conveniently switch between ordinary dewatering and vacuum dewatering in a well hole, thereby reducing the number of pipe wells, reducing construction costs, and accelerating construction progress.

The application relates to the construction pipe well cleaning technical field, in particular to an engineering pipe well embedded self-cleaning device, which comprises an engineering pipe well, a fixed well sleeve is welded at the inner bottom end of the engineering pipe well, a rotating motor is welded in the middle of the fixed well sleeve, a rotating shaft rod is connected above the rotating motor, stirring fan blades are installed on the surface of the rotating shaft rod, and a driven bearing is arranged on the upper side of the stirring fan blades. The machine well embedded self-cleaning assembly is used, the rotating motor drives the stirring fan blades to rotate at high speed through the rotating shaft rod, the well water can be stirred when the stirring fan blades rotate, the well water is fully stirred, the floating scum and sundries on the surface of the well wall and the well water are moved, the subsequent cleaning is facilitated, when the rotating motor drives the rotating shaft rod to rotate, the rotating shaft rod will synchronously drive the wall scraping plate to rotate through the top block, and the wall scraping plate is tightly attached to the well wall, so that the sundries adhered to the well wall are scraped off.

The invention relates to a large-diameter concrete pipe-jacking through-wall rigid connector and a construction method thereof. The large-diameter concrete pipe-jacking wall-penetrating rigid connector comprises a rigid outer lantern ring arranged on the outer surface of a first-section pipeline or the outer surface of a tail-section pipeline in a sleeving mode, an L-shaped embedded part arranged on the periphery of a pipe-jacking hole, and a grouting hole formed between the wall of a pipe-jacking well and the hole wall of the pipe-jacking hole. The water swelling rubber strip is arranged between the hole wall of the pipe jacking hole and the rigid outer lantern ring of the first-section pipeline or the tail-section pipeline, and the sealing plate is arranged on the periphery of the first-section pipeline or the periphery of the tail-section pipeline in a sleeving mode and connected with the rigid outer lantern ring and the L-shaped embedded part. And the micro-expansion waterproof mortar layer is arranged in a gap between the hole wall of the pipe jacking hole and the rigid outer lantern ring. The waterproof performance is excellent, the bearing performance is good, and it can be guaranteed that the bearing and waterproof requirements are met in the use period of the pipeline; the construction technology is mature, the quality is reliable, and the construction efficiency is high.

The utility model relates to the technical field of precipitation wells, in particular to an anti-falling safety protection cover plate assembly of a precipitation well, which comprises a concrete layer and a precipitation tube well embedded in the concrete layer, and an anti-falling mechanism used for comprehensively protecting the upper end of the precipitation tube well is arranged between the precipitation tube well and the upper end of the concrete layer. A concealed pipe structure used for concealed wiring operation of cables and pipelines is arranged between the downcast pipe well and the side direction of the concrete layer. According to the anti-falling safety protection cover plate assembly of the dewatering well, people or objects can be prevented from falling accidentally, meanwhile, dewatering pipelines, cables and the like can be hidden and buried, the road surface is free of obstacles, vehicles on a temporary road can run conveniently, the working face of a construction site is expanded, and the safe and civilized construction image is improved; and the actual use safety and layout reasonability of the dewatering well are effectively improved.

The utility model relates to the technical field of tube well construction, in particular to a municipal tube well construction auxiliary device which comprises a long rod, a hoisting mechanism is fixedly installed at the top end of the long rod, an abutting mechanism is installed on the long rod in a sliding mode, the abutting mechanism comprises a second hoisting ring and a sliding seat, and the long rod is connected with the sliding seat in a sliding mode. A second hanging ring is fixedly installed on the sliding seat, a sliding block and a base are fixedly connected to the long rod, rotating rods are rotationally installed on the sliding seat, the sliding block and the base, the rotating rods are rotationally connected with abutting rods, through grooves are formed in the abutting rods, base plates are installed on the abutting rods in a clamped mode, and a supporting mechanism is arranged at the bottom end of the base. The second hanging ring drives the sliding seat to slide along the long rod, the abutting rod is in a contraction state when the three sets of rotating rods rotate, the abutting rod can move into the tube well, the base plate can abut against the inner wall of the tube well when the sliding seat resets, and then the tube well can be moved conveniently.

The utility model discloses a modularized mounting bracket for a tube well casing, which relates to the technical field of tube well brackets and comprises a bracket body and a tube well, the frame body comprises longitudinally distributed L-shaped transverse frames and transversely distributed inverted-L-shaped longitudinal frames, the L-shaped transverse frames face the same direction, the inverted-L-shaped longitudinal frames face the same direction, and first connecting pieces are arranged at the joints of the L-shaped transverse frames and the inverted-L-shaped longitudinal frames; the pipe well is connected with the frame body through a fixing assembly, and the pipe well installation structure has the advantages that the modularized installation support is adopted for directly completing pre-burying of a casing pipe in one-time structure construction, the steps of wire hanging, formwork erecting and the like in the later period are omitted, the modularized installation support is fixedly connected with the casing pipe of the pipe well, and the phenomenon that the pipe well is prone to displacement and loosening during concrete pouring is reduced; the positioning accuracy and the construction simplification of pipe well casing pipe embedding are achieved, the reserved embedding rate is increased, the defect of secondary concrete pouring is avoided, the labor cost is reduced, and the effects of reducing cost and improving efficiency are achieved.

This application discloses a well drilling device, including a clamp assembly with an inverted U-shaped structure. The outer side of the clamp assembly is connected to the inner end of a drilling assembly via an arc-shaped transition assembly. The arc-shaped transition assembly includes a connecting plate, an arc-shaped sliding hole, and a locking pin. The outer side of the clamp assembly is connected to the connecting plate, which has an arc-shaped sliding hole. A locking pin is installed within the arc-shaped sliding hole and is connected to the inner end of the drilling assembly. The beneficial effects of this application are: well drilling operations are achieved using mechanized equipment, avoiding the problems of low efficiency, poor quality, and high risk associated with manual operations. This reduces the labor intensity of manual operations, ensures the quality and accuracy of the final borehole, and greatly improves the efficiency of the construction operation.

The invention relates to a deep geothermal cluster type centralized exploration well spacing method and a well drilling structure, and belongs to the technical field of geothermal exploitation. Comprising the following steps that (1) according to the heat storage layering thickness, temperature and seepage field change rules, the plane coordinates of water taking points at the bottoms of all wells which are distributed in a cluster type in a centralized mode are determined through the equilateral triangle principle; (2) firstly, all geothermal wells are vertically drilled, after the geothermal wells go deep into the ground, a radial dispersed range arrow cluster type is adopted, and the track of a single well is of a straight section-a first directional angle-increasing section-a first inclined straight well section-a second directional angle-increasing section-a second inclined straight section; the well drilling structure sequentially comprises a pump chamber pipe, a well pipe, a water filtering pipe and a precipitation pipe from top to bottom. The invention further provides a well drilling structure explored by the method. According to the method, cluster type centralized mining geothermal well target point layout is carried out by adopting the equilateral triangle principle, the minimum influence area of project geothermal mining and irrigation can be determined, the utilization rate of geothermal resources in a mining area can be increased, and reasonable utilization of deep geothermal resources is achieved.

The utility model provides a rainfall drainage structure for building construction. The rainfall drainage structure comprises a shaft and a well seat, a mounting part with threads is arranged at the bottom of the shaft, and the shaft is detachably arranged on the well seat through the mounting part; a three-way pipe is further arranged in the well base, two sets of first connecting pipes are further oppositely arranged on the two sides of the well base, the two sides of the three-way pipe are arranged in the two sets of first connecting pipes in a penetrating mode respectively, and a flow collecting assembly is further arranged in the shaft and connected with the top of the three-way pipe; the spiral water falling pieces in the collecting pipes guide high-speed water flow to spirally fall down, the flow speed is reduced, impact force is dispersed, erosive wear to ditch walls and pipelines is reduced, the structural durability is improved, and the maintenance cost is reduced. And the shaft and the well seat, the collecting pipe and the three-way pipe as well as the top cover, and the drainage frame and the grating cover plate can be detached, so that a worker can easily detach related parts when cleaning accumulated sundries, the cleaning difficulty and cost are greatly reduced, the cleaning efficiency is also improved, and the stable operation of the drainage system is ensured.

The utility model discloses a downcast tube well cleaning device, and relates to the technical field of downcast tube well cleaning, the downcast tube well cleaning device comprises a submersible pump, and further comprises a flushing assembly and a clamping assembly used for clamping the submersible pump in a downcast tube well, the flushing assembly comprises a shell concentrically arranged below the submersible pump and a rotating tube rotationally sleeved at the lower end of the shell, a plurality of water spraying openings are formed in the circumferential side and the bottom of the spray head, and the water spraying openings in the circumferential side of the spray head are all arranged in a manner of deviating from the circle center of the spray head; a three-way connector is fixedly installed at the output end of the submersible pump, and a flexible water pipe and a corrugated pipe are fixedly installed in the other two ports of the three-way connector respectively. According to the cleaning device for the downcast tube well, in the cleaning process, a silt layer at the bottom of the tube well can be effectively impacted through rotation of the spray head and multi-angle water spraying, silt and water are fully mixed, a cement mixture easy to discharge is formed, and therefore the purpose of removing the silt at the bottom of the tube well is achieved.

The utility model discloses an optical cable connector box floating device capable of self-adapting to water level, comprising a buoyancy base which comprises an EPP foam sealing buoy; a universal spherical hinge mounting base plate is connected above the buoyancy base, a universal spherical hinge is connected to the middle of the upper part of the universal spherical hinge mounting base plate, the other end of the universal spherical hinge is connected with a bearing platform, a wear-resistant silica gel damping layer is arranged on the upper part of the bearing platform, and an optical cable connector box is connected above the wear-resistant silica gel damping layer. And a counterweight device is arranged at the lower half part of the buoyancy base. The counterweight device is a stainless steel hoop which is uniformly arranged around the circumference of the buoyancy base, and counterweight blocks are uniformly arranged on the circumference of the stainless steel hoop. According to the utility model, the problem that the quality of optical fiber signals is affected due to the fact that the water level of an underground pipe well is varied and the optical fiber connector box is easy to submerge in the traditional fixed installation mode of the existing optical fiber connector box in an underground pipe well scene is solved.

The invention discloses a pipe-jacking well top-down composite lining process method, belongs to the technical field of drainage engineering pipe-jacking wells, and remarkably improves the construction efficiency and resource utilization rate of a pipe-jacking well top-down method by adopting a steel pipe piece and rubber air cushion composite lining process. The composite lining structure does not need to wait for concrete solidification, the overall construction period is shortened, and the safety risk of long-time exposure of the foundation pit is effectively avoided. And meanwhile, the steel pipe sheet and the rubber air cushion can be recycled, so that the material cost and the environmental burden are greatly reduced. Modularized design and standardized operation are introduced into the process, through factory prefabrication and on-site rapid assembly, complex procedures such as on-site manual steel bar binding and formwork installation are reduced, the construction process is more standard, and on-site management is more efficient. The stability of the foundation pit in the excavation and backfill process is ensured, the structural safety of the pipe jacking well is ensured, and a reliable foundation is provided for subsequent pipeline jacking construction.

The invention provides a pipe-jacking well deepening construction method based on a reverse construction method. The method comprises the steps that the integrity of an original cast-in-place pile is detected, and an original temporary support in a well is removed; single-layer excavation and primary supporting are started, deep ditches are excavated at the bottom of the pit along the well wall, and coarse sand is backfilled to serve as a joint bar layer; a reinforcing mesh is hung on the cast-in-place pile, and a concrete primary lining is sprayed; rebars are planted on the surfaces of the cast-in-place piles, and side wall rebars of gradient reinforcement are bound; a side wall formwork is arranged, and side wall concrete is poured; after maintenance is completed, the formwork is removed; the next layer of soil body is excavated, and the side wall is circularly constructed till the designed elevation is reached; the deepening construction of the pipe-jacking well is completed, and the problem that deepening construction is needed when the pipe-jacking well encounters an obstacle is solved.

The invention discloses a tube well safety operation multifunctional crawler machine device which comprises a mounting plate, crawler belts are rotatably matched with the two opposite sides of the mounting plate, a groove is formed in the middle of the mounting plate, a supporting plate is elastically and slidably matched with the interior of the groove, an adjusting plate is rotatably matched with one end of the supporting plate, and a drill rod is slidably and rotatably matched with one side of the adjusting plate. A sliding plate is arranged in the groove in an elastic and sliding fit mode, and rectangular sliding grooves are formed in the two opposite ends of the sliding plate. By means of the sliding plates, the multiple push plates are in running fit, the inclination angle of the push plates is changed, so that the two sliding rods are pushed to be elastically and slidably matched in the two rectangular sliding grooves, impact force generated when the supporting plate is pressed downwards and vibrates can be rapidly absorbed, the buffering and vibration reduction effects on the supporting plate are achieved, vibration generated when the drill rod works is buffered, and the service life of the drill rod is prolonged. The situation of drill hole deviation caused by damage of the drill rod can be reduced, and the working stability of the drill rod is effectively improved.