1094 results about "Waterproofing" patented technology

The invention provides a house waterproof maintenance system based on an intelligent detection and self-repairing technology, and the system comprises an intelligent sensing layer which is used for collecting multi-dimensional physical parameters of building waterproof key nodes in real time; the edge calculation analysis layer is used for performing fusion analysis and risk prediction on the perception data; the dynamic self-repairing execution layer is used for triggering a multi-stage repairing mechanism according to an analysis result; the cloud management layer is used for realizing visual management and control and strategy optimization of the whole system, and relates to the technical field of building waterproofing, the building state is monitored in real time through a multi-mode sensing network, water leakage risk prediction is realized in combination with an edge calculation algorithm, and collaborative repair of a microcapsule repair agent, a shape memory alloy grid and an electrodialysis module is triggered; the system remarkably improves the timeliness and reliability of waterproof maintenance, reduces the manual intervention cost, and is suitable for intelligent maintenance of residential buildings, industrial buildings and historical protection buildings.

The invention relates to the technical field of design service, in particular to a roof waterproof structure intelligent design optimization system which comprises a node contour extraction module, a contact segment recognition module, a close boundary evaluation module, a disturbance area labeling module and a waterproof configuration reconstruction module. According to the invention, by extracting the direction vector change of the boundary point cloud sequence, the continuity and stability of the turning trend in the contour structure can be accurately obtained, the boundary of the roof structure can be identified, and the contact type of the boundary joint can be determined in combination with the direction change rate distribution of the contact surface, so that the boundary sealing state has quantitative index output; in addition, local positioning information of a fitting path and a structure defect can be provided, a node contour reconstruction path with an adjustment space is provided based on a pressing path continuity judgment and simulation edge shift strategy, and the adaptability of a node structure under the action of complex stress and the configuration optimization capability of the overall waterproof performance of a roof are improved.

The invention relates to the field of curtain walls, in particular to an innovative curtain wall with an expansion joint, through the arrangement of the expansion joint, the function requirement for expansion of building materials is met, and through the arrangement of a connecting assembly, a first stand column, a second stand column, a first expansion piece, a second expansion piece, a third expansion piece and a panel, the expansion joint is hidden on the rear side of the panel; uniformity of vertical faces of the curtain wall is guaranteed, the effect and quality of the curtain wall are improved, and the problems of heat preservation, heat insulation and expansion joint water leakage of an existing curtain wall are solved. By arranging the connecting assembly, the first stand column and the second stand column, the curtain wall structure is more stable. The problems that a curtain wall expansion joint is arranged on an outer vertical face, waterproof is difficult, and attractiveness, heat insulation and waterproof performance of a curtain wall are damaged are solved.

The invention relates to a structure anti-seepage waterproof technology, in particular to a concrete structure anti-seepage performance analysis method considering a multi-physics field coupling effect, which comprises the following steps of: establishing a chemical-thermal-mechanical multi-field coupling model in a concrete hydration process by comprehensively considering various influence factors such as hydration heat, temperature, humidity and structure constraint and combining a phase field theory; solving is carried out through refined numerical simulation, and the concrete crack development and evolution process is obtained. The method has the advantages that multiple influence factors such as hydration heat, temperature, humidity and structural constraint are comprehensively considered by constructing the multi-factor coupled phase field model, the cracking risk of the concrete can be accurately estimated, and comprehensiveness and accuracy of impermeability performance evaluation are improved. By combining finite element simulation and based on a high-precision numerical simulation technology, the anti-permeability performance of the concrete structure under different working conditions can be predicted, and a scientific basis is provided for engineering design.

The invention discloses a waterproof safety evaluation method and system for waterproof engineering, and belongs to the technical field of waterproofing of constructional engineering. According to the method, the waterproof safety level is comprehensively evaluated by determining an engineering structure defect quantitative index, setting a reference crack width Ws, measuring a waterproof material or engineering re-waterproof performance index Wm and calculating a waterproof safety coefficient K = Wm / Ws. The system evaluates grades based on the method, and selects corresponding waterproof materials and construction methods according to engineering importance, expected deformation and service life. According to the invention, concepts of'waterproof performance 'and'waterproof safety coefficient' are put forward for the first time, a quantitative evaluation system oriented to waterproof performance is established, the defects of heavy form and light actual effect of current specifications are effectively overcome, the transformation from'form compliance 'to'performance standard' is realized, the reliability, durability and economy of waterproof engineering are remarkably improved, and the method is suitable for popularization and application. And a scientific basis is provided for engineering design, material selection and acceptance.

The invention relates to a waterproof electric energy metering box, which relates to the technical field of power equipment protection, and comprises a main box body, and a waterproof device and a heat dissipation device matched with the main box body. The waterproof device comprises a waterproof box and an inner partition plate, a plurality of ventilation holes are formed in the waterproof box, a plurality of heat dissipation holes are formed in the side wall of the main box body, a water outlet is formed in the bottom of the waterproof box, and the bottom face of the waterproof box inclines towards the water outlet. The inner partition plate is located between the waterproof box and the main box body, gaps are formed between the inner partition plate and the waterproof box and between the inner partition plate and the main box body, and a plurality of communicating holes are formed in the inner partition plate; the heat dissipation device comprises a fan and a flow guide plate, the fan is connected with an air outlet pipe, an air outlet of the air outlet pipe is formed towards the bottom of the main box body, and an arc-shaped flow guide groove is formed in the flow guide plate; a plurality of air outlet holes are formed in the top of the main box body. According to the invention, effective water resistance is achieved, good heat dissipation is realized through reasonable airflow path and component cooperation, and related structures can be adjusted according to temperature and humidity conditions.

The invention relates to an outer wall facade self-adhesion waterproof coiled material continuous paving device and method.The outer wall facade self-adhesion waterproof coiled material continuous paving device comprises a guide rail frame, a moving frame, a driving mechanism, a film uncovering roller, a coiled material containing shaft and a rubber rolling roller, and the driving mechanism, the film uncovering roller and the coiled material containing shaft are all installed on the moving frame; the two ends of the rubber grinding roller are installed below the moving frame through the front-back adjusting mechanism, and the moving frame is arranged on the guide rail frame in a sleeving mode and can move up and down along the guide rail frame under driving of the driving mechanism. The film uncovering roller, the coiled material placing shaft and the rubber rolling roller are all horizontally arranged and can rotate around the self axis, the film uncovering roller, the coiled material placing shaft and the rubber rolling roller are sequentially arranged on the rear side of the guide rail frame from top to bottom at intervals, and the driving mechanism is further in transmission connection with the film uncovering roller and drives the film uncovering roller to rotate. The construction speed and construction efficiency of the outer wall facade waterproof coiled material can be improved, the construction quality of the outer wall facade waterproof coiled material is guaranteed, and the later water leakage hidden danger of a basement outer wall is reduced.

The invention belongs to the technical field of waterproof cutting lamps, and discloses a waterproof cutting lamp for stage atmosphere treatment, which comprises a base, the top end of the base is rotatably connected with a rotating seat, the interior of the rotating seat is rotatably connected with a waterproof cutting lamp body, and the outer side of the waterproof cutting lamp body is provided with a sealing cover through a screw. A waterproof groove is formed in the edge of the inner wall of the sealing cover, a sealing gasket is arranged on the inner wall of the waterproof groove, bonding pieces are bonded to the two sides of the sealing gasket and bonded to the interior of the sealing cover, a lifting strip is vertically and movably connected to the interior of the sealing cover, and a pressing plate is vertically and movably connected to the middle of the lifting strip. The two sides of the lifting strip are movably connected with side pressing plates in the inclined direction, the sealing cover is tightly matched with the waterproof cutting lamp body, the inner pressing plate, the side pressing plates and other components work cooperatively, water invasion is effectively prevented, it is ensured that equipment stably operates in the humid environment, the sealing effect is further enhanced through gas flowing and an extrusion mechanism, and the service life of the equipment is prolonged. And meanwhile, the waterproof reliability is improved by utilizing a gas expansion principle.

The invention relates to the technical field of on-line monitoring, in particular to a water level on-line detection method and system for water conservancy project waterproofing, and the method comprises the following steps: analyzing water level changes before and after an event, screening abnormal measurement points, recognizing an abnormal region in combination with an excitation signal, and adjusting transmission priority configuration according to data change characteristics. And judging a trend boundary to construct trend structure information, and analyzing a multi-cycle water level record to output a cycle gradient change result. According to the method, through combination of event attributes and the liquid level change relation, abnormal signal identification is optimized, data difference comparison before and after disturbance is utilized, the abnormal area judgment capacity is enhanced, jump trend capture is achieved in combination with the period slope change trend, and a dynamically-adjusted data uploading priority rule is constructed, so that the measuring point channel response has the real-time regulation and control capacity; the accuracy of trend continuation judgment is improved, the water level change direction and the periodic gradient offset state are subjected to association expression, and the dynamic tracking and grading response capability of water level monitoring is enhanced.

Described herein are fascia rail mounts that are attached to a structure, such as a deck. The disclosed fascia rail mounts include threaded rods that mate with holes in a railing post to allow the railing post to be attached to the structure using the threaded rods, the threaded rods extending from a side plate that is adjacent to a fascia beam of the structure. The disclosed rail mounts are attached to the structure prior to applying any layers designed to protect the structure such that the fascia rail mounts, including the threaded rods, receive the protective layers. A waterproof layer can be applied to the structure after the fascia rail mounts have been affixed so that the threaded rods of the fascia rail mounts extend past the waterproof layer without compromising the waterproofing of the structure. In other words, the waterproof layer forms a waterproof barrier even with the threaded rods extending from the fascia rail mounts through the waterproof layer.

The invention provides a design method of a waterproof rubber sealing gasket for a shield tunnel. The design method comprises the following steps: acquiring a plurality of material parameters and a plurality of boundary conditions of the rubber sealing gasket; on the basis of a pre-established working condition numerical analysis model, according to the multiple material parameters and the multiple boundary conditions of the rubber sealing gasket, experimental design parameters of the rubber sealing gasket are determined; verifying the experimental design parameters of the rubber sealing gasket based on a preset experimental scheme, and determining the design parameters of the rubber sealing gasket according to the verification result of the experimental design parameters of the rubber sealing gasket. According to the method, the experimental design parameters can be determined at least through the pre-established working condition numerical analysis model, the experimental design parameters are verified according to actual experiments, the design parameters of the rubber sealing gasket are determined, and the reliability of actual engineering application of the shield tunnel sealing gasket is improved.

The utility model relates to the technical field of building waterproofing, and provides a waterproof roll pipe root additional layer cutting device which comprises a protective shell, the protective shell is of a hollow tubular structure, a bottom plate is arranged at the bottom of the protective shell, an adjusting assembly is arranged in the protective shell, and the adjusting assembly comprises an upper rotating ring and a lower rotating ring. The upper rotating ring and the lower rotating ring are coaxially arranged with the protective shell and can rotate around the axis of the protective shell; the cutter assembly is movably arranged between the upper rotating ring and the lower rotating ring, the cutter assembly comprises a cutter groove and a cutting knife, the cutting knife is placed in the cutter groove, and a blade of the cutting knife vertically faces the bottom plate; and the pressing plate is arranged above the cutter assembly and used for applying pressure to the cutter assembly, the pressing plate is connected with the bottom plate through a spring, and the spring is used for resetting after the pressing plate is pressed downwards. According to the pipe root cutting device, the waterproof coiled material at the pipe root part can be efficiently cut in a regular shape, the pipe root cutting device can be suitable for pipes with different diameters, and the practicability of the device is improved.

The present invention relates to a method for installing a multi-level under-hanging steel structure, comprising the following steps: S1, installation of the lower chord steel beam of the theater auditorium truss: during the installation of the lower chord steel beam of the theater auditorium truss, the steel beam is precisely aligned and fixed to ensure installation accuracy and stability, and the structure is adjusted to meet the requirements of the specification through horizontal and vertical deviation inspections, and the reinforcement and installation process of the beam is comprehensively inspected. The present invention enhances structural stability by precisely hoisting and installing the theater complex building, meets protection standards such as anti-corrosion, insulation and waterproofing, handles structural joints, ensures the continuity and stability of the overall structure, conducts stability inspections, and promptly repairs or reinforces problems. Through comprehensive review and testing methods, it is ensured that the installation and connection meet the design and specification requirements, enhances the operability and economic benefits of the project, protects the civil structure, improves installation accuracy, reduces maintenance costs, and improves the reliability and safety of the overall project.

The invention belongs to the technical field of tunnel engineering construction, and particularly relates to a tunnel waterproof plate rapid reconstruction construction method which comprises the steps that after surface pretreatment, a buffer layer and a waterproof plate are laid through an interface rapid attaching method, and efficient connection of the waterproof plate is achieved through a high-frequency energy fusion method; and repairing the damaged part in combination with a directional pressure filling method. According to the method, the construction efficiency can be effectively improved, the waterproof quality is guaranteed, the repairing period is shortened, disturbance of construction to surrounding rock is reduced, the method is suitable for tunnel waterproof engineering under various complex geological conditions, and an innovative solution is provided for tunnel waterproof construction and maintenance.

The invention relates to the field of water conservancy construction waterproofing, and discloses a water conservancy project construction water stopping device which comprises a water stopping base frame. A water floating water stopping mechanism; the water floating water stopping mechanism is arranged on the front side of the water stopping base frame, and the water floating water stopping mechanism is used for automatically stopping water after the water level rises; the linkage water level prompting mechanism is triggered while the water stopping mechanism acts, the floating ball drives the water level prompting rod to move upwards along with rising of the water level, when the water level is high, the water level prompting rod moves upwards to the upper side of the water level prompting plate, and water conservancy constructors observe the position relation between the water level prompting rod and the water level prompting plate, so that the water level prompting rod can prompt the water level. The current water level condition can be visually known in real time, corresponding measures such as drainage strengthening and construction scheme adjusting can be conveniently taken in time, construction safety is ensured, the linkage prompting mechanism organically combines the water stopping action and water level monitoring, the timeliness and accuracy of water level monitoring are improved, and the water level monitoring efficiency is improved. And a more reliable guarantee is provided for safe construction of a water conservancy project.

The invention relates to the technical field of building materials, and discloses a self-repairing microcapsule-based composite waterproof material and a preparation method thereof, and the self-repairing microcapsule-based composite waterproof material comprises the following components by weight: 60-80 parts of modified organic silicon resin, 5-15 parts of nano clay (modified montmorillonite), 3-8 parts of a self-repairing microcapsule, 2-5 parts of a water-based cross-linking agent, and 0.5-2 parts of a dispersing aid. Stress generated by settlement and temperature change of a building structure can be effectively resisted, and cracks are reduced fundamentally; meanwhile, the material still keeps flexibility at the low temperature of-30 DEG C (without cracks when bent), and the technical bottleneck that a traditional material is prone to embrittlement in a cold region is broken through; more importantly, the 24-hour self-repairing rate is up to 92%, self-healing of cracks can be achieved without manual intervention, the service life of waterproof engineering is prolonged to more than two times that of a traditional material, the full-life-cycle maintenance cost is remarkably reduced, and a long-acting and reliable solution is provided for the field of building waterproofing.

According to the dual-waterproof self-cleaning lens and the camera module applying the same, the piezoelectric ceramic is integrated below the front-end lens of the lens, so that the piezoelectric material can be powered by the conductive element to realize high-frequency vibration, and the front-end lens is driven to clean dirt on the surface of the lens; the peripheral side and the bottom of the front-end lens are respectively provided with a sealing structure, double waterproofing can be achieved structurally, the vibration performance of the piezoelectric ceramic is fully released, compared with a traditional camera module, the piezoelectric ceramic is arranged in the lens, the ultrasonic cleaning function is added, the structure is simple, and the application range is wide. The lens module is beneficial to miniaturization, is suitable for AA, thread and integrated lenses, and can clean rainwater and dust.

The invention relates to the technical field of storage tank chambers, in particular to a deep-ground ultra-large-span storage tank chamber anti-seepage water collection and drainage system which comprises a chamber outer side waterproof and water collection and drainage system, a chamber inner side water collection and drainage system, a chamber channel outer side waterproof and water collection and drainage system and a chamber channel inner side water collection and drainage system. The waterproof plate and the waterproof geotechnical cloth are arranged on the outer sides of the chamber and the chamber channel; wherein the chamber outside waterproof and catchment drainage system, the chamber inside catchment drainage system and the chamber channel outside waterproof and catchment drainage system are all communicated with the chamber channel inside catchment drainage system. According to the anti-seepage water collection and drainage system for the deep-ground ultra-large-span storage tank chamber, water seepage around the storage tank chamber is considered, the measures of water prevention, water collection and drainage are taken, and the anti-seepage problem of the ultra-large-span storage tank chamber in the deep underground space is effectively solved.

The utility model belongs to the technical field of tunnel waterproofing, and discloses a tunnel top waterproof structure which comprises a base body, a first water absorption sponge is installed at the top end of the base body, first waterproof cloth is installed at the top end of the first water absorption sponge, drainage chutes are installed at the bottom ends of the two sides of the base body, and an arc-shaped installation groove is formed in the base body. And an arc-shaped extrusion plate is slidably mounted in the arc-shaped mounting groove, water collecting grooves are formed in the bottom ends of the two sides of the arc-shaped extrusion plate, a second water absorption sponge is mounted in the middle of the bottom end of the arc-shaped extrusion plate, and the bottom end of the second water absorption sponge is connected with the middle of the bottom end of the arc-shaped mounting groove. According to the tunnel top waterproof structure, water concentrated at the top of a tunnel can be discharged, water pressure accumulated at the top of the tunnel is relieved through deformation of the first water absorption sponge, meanwhile, water accumulated in the base body can be absorbed and discharged, the waterproof effect of the top of the tunnel is improved, and the service life of the tunnel top waterproof structure is prolonged.

The invention provides a bearing high-temperature dynamic waterproof detection method, and relates to the technical field of bearing waterproof detection methods, and the bearing high-temperature dynamic waterproof detection method comprises the following steps: (I) loading a bearing, (II) injecting a medium, (III) carrying out dynamic simulation, (IV) taking out the bearing, and (V) determining a detection result. The to-be-detected bearing rotates in the high-temperature colored fluid medium, so that the dynamic operation process of the bearing is simulated, the high-temperature dynamic waterproof test of the bearing is realized, and the waterproof performance of the bearing is judged by observing whether the colored fluid medium exists in the to-be-detected bearing after dynamic simulation. The waterproof performance detection effect of the bearing is obvious, the detection result can be judged through observation, and the operation is convenient.

The utility model provides a waterproof lighting device which is characterized in that the number of supports is two, rotating shafts are rotatably arranged at the upper ends of the two supports, a lower shell is arranged between the two rotating shafts, an upper shell is fixedly connected to the upper side of the lower shell through hexagon socket screws, a glass cover is arranged on the upper surface of the upper shell, and a lamp panel is arranged on the upper side in the upper shell; a plurality of evenly-distributed lamp beads are arranged on the upper surface of the lamp panel, a sealing module used for waterproof sealing is further arranged between the lower shell and the upper shell, and an adjusting module used for adjusting the illumination angle is further arranged between the rotating shaft and the support. According to the waterproof lighting device, the irradiation angle can be quickly adjusted according to irradiation requirements, meanwhile, efficient waterproof performance is achieved, and the waterproof lighting device can adapt to different water vapor environments for lighting.

The utility model provides a waterstop sleeve for industrial pool waterproofing, which is characterized in that the waterstop sleeve comprises a sleeve body and at least one waterstop ring sleeved along the outer wall of the sleeve body, and the waterstop ring comprises a horizontal part in sealing connection with the sleeve body and a bending part which is connected with the horizontal part and is bent upwards; the horizontal part, the bent part and the outer wall of the sleeve body form a space for containing liquid, and the liquid in a water pool can be firstly stored in the space when leaking. The casing pipe body is arranged outside a pipeline to be installed in a sleeved mode, and the water stop casing pipe further comprises a sealing piece used for sealing a gap between the pipeline to be installed and the casing pipe body. Compared with the prior art, the bent part is arranged on the water stop ring, so that the structure of the water stop ring is changed, the water seepage path is prolonged, and the water stop effect is improved. Meanwhile, the sealing piece is arranged between the sleeve body and the pipeline to be installed, sealing of the water stop sleeve and the pipeline to be installed is achieved, and the waterproof capacity is further improved.

The utility model relates to a waterproof structure of a prefabricated staircase splicing seam, which belongs to the technical field of prefabricated staircase waterproofing, and comprises a floor slab main body and a prefabricated staircase main body, a waterproof structure is arranged at the tops of the floor slab main body and the prefabricated staircase main body, and the waterproof structure comprises a waterproof plate arranged at the top ends of the floor slab main body and the prefabricated staircase main body; the waterproof plate comprises an anti-skid layer, a wear-resistant layer, a corrosion-resistant layer, a waterproof coating, a waterproof film and a bottom plate. The waterproof structure further comprises a connecting assembly which is arranged on the waterproof plate and used for connecting the floor slab body and the prefabricated stair body. According to the waterproof structure for the splicing seam of the prefabricated stair, through the waterproof structure, the waterproof plate can shield the splicing seam of the floor slab and the prefabricated stair, the waterproof performance of the splicing seam of the floor slab and the prefabricated stair is achieved, and the situation that the quality of the splicing end of the prefabricated stair and the floor slab is affected, and the service life of the prefabricated stair is shortened is avoided; and the service life of the waterproof plate is prolonged.

The invention discloses a leakage repairing and waterproof system construction method for a subway foundation pit close to a building. A common waterproof system of the subway foundation pit and the building close to the subway foundation pit is constructed. The common waterproof system comprises a waterproof monitoring system and a common waterproof structure; the common waterproof structure comprises auxiliary side wall body waterproof structures on the two sides of the subway foundation pit, a bottom plate waterproof layer between the lower portions of the auxiliary side wall bodies on the two sides, a top plate waterproof layer between the upper portions of the auxiliary side wall bodies on the two sides, vertical anti-seepage walls arranged between the adjacent building and the adjacent auxiliary side wall bodies, and a waterproof structure on the periphery of the reserved hole. The waterproof monitoring system comprises a sensor for monitoring underground water and soil conditions of a subway foundation pit, a sensor for monitoring temperature changes in the foundation pit and a sensor for detecting the leakage condition of a common waterproof structure. The sensors in the waterproof monitoring system are arranged in a multi-stage net shape. A common waterproof system of the subway foundation pit and the adjacent building is constructed, and the waterproof monitoring system is arranged to conduct real-time leakage monitoring on the subway foundation pit.

The utility model discloses a turbidity detection device, comprising a turbidity sensor, a water tank and a reflective medium plate, wherein the turbidity sensor is fitted on an outer side wall of the water tank, and the reflective medium plate is positioned on another outer side wall opposite to the turbidity sensor; the turbidity sensor is arranged on the outer side wall of the water tank, and there is no need to consider that suspended particles adhere to the surface of the turbidity sensor after being used for a period of time, thereby affecting the sending and receiving paths of a transmitting lamp and a receiving lamp, thereby affecting the detection accuracy of the turbidity sensor; at the same time, the turbidity sensor is arranged on the outer side wall of the water tank, isolated from the liquid to be measured, and there is no need to consider the wiring and waterproofing of the turbidity sensor in product design.

The utility model discloses a waterproof rapid flow guide device for a roof cornice in building design, and particularly relates to the technical field of roof cornice waterproofing, which comprises a flow guide box, a plurality of arc-shaped grid plates are fixedly connected to the top of the flow guide box, a fixed partition rod is fixedly connected between every two arc-shaped grid plates, and a flow guide water pipe is fixedly connected to one side of the flow guide box. A rotating mechanism is arranged in the flow guide box; the rotating mechanism comprises a rotating shaft which is arranged in the flow guide box. By arranging the rotating mechanism, rainwater impacts the rotating fan blades to drive the rotating scraping plate to rotate, so that the rotating scraping plate automatically scrapes the surfaces of the arc-shaped grid plate and the fixed partition rod to clean residual garbage, the self-driven cleaning mode does not need extra energy, the cost is saved, the rainwater diversion effect is prevented from being influenced by garbage accumulation, and the rainwater diversion effect is improved. Rainwater flowing is used as power to enable the rotating scraping plate to automatically clean garbage on the grid plate, more energy is saved, the environment is protected, and the long-term stable flow guide effect is ensured.

The invention relates to the technical field of ground waterproofing, and particularly discloses a building ground waterproofing system and a construction method.The building ground waterproofing system sequentially comprises a ground base layer, a leveling water guide layer, a secondary waterproof layer, a ceramsite filling layer, a strong ground leveling layer and a primary waterproof layer from bottom to top, a sewer pipe is arranged in the middle of the ground base layer in a penetrating mode, and a sewer hole is formed in the surface of the sewer pipe; a through hole is vertically formed in the lowest point of the leveling water guide layer, the sewer pipe penetrates through the through hole, the lowest point of the sewer pipe is horizontally aligned with the top end of the through hole, the top end of the sewer pipe is vertically communicated with the drainage pipe through an adapter, and the drainage pipe sequentially penetrates through the ceramsite filling layer, the strong ground leveling layer and the primary waterproof layer. According to the waterproof system, the leveling water guide layer, the secondary waterproof layer and the drainage hole are combined to form a secondary drainage structure with high drainage efficiency, double-layer waterproof is matched with rapid guide secondary drainage, the service life of a waterproof material can be prolonged, and the waterproof grade is improved.

This invention relates to the field of deep foundation pit support construction technology, specifically a nested support construction process for deep foundation pit elevator shafts and sump pits. It solves the problem that traditional caisson waterproofing technology is prone to failure due to pit wall collapse in highly permeable gravel strata, making it difficult to create stable construction conditions. The process includes a steel caisson support structure, within which a steel caisson waterproofing structure is nested. This steel caisson waterproofing structure is used in conjunction with the steel caisson support structure for nested construction. This invention, through the nested cooperation of the steel caisson support structure and the steel caisson waterproofing structure, and the injection of a self-compacting concrete filling layer, achieves an integrated support and waterproofing effect during construction. It creates a stable, dry, and enclosed working space in easily collapsible, highly permeable strata, solving the problem of failure of traditional single waterproofing technology and creating safe and reliable conditions for subsequent structural construction.

This invention provides a method for constructing a sidewall without tie rods using interlocking pile support in open-cut tunnels. The method includes: setting foundation pre-embedded bolts; pouring foundation concrete; binding sidewall reinforcement; installing sidewall steel panels and supporting trusses; installing and debugging the sidewall formwork support system; installing and testing the anti-buoyancy system; installing and debugging a multi-target distance sensing steel formwork deformation monitoring system; pouring sidewall concrete; and treating construction joint waterproofing. This invention solves the problem of limited construction space for formwork trolleys in local tunnel construction sections by optimizing the formwork structure system. Compared to traditional large-volume steel formwork installation, it offers lower material costs, more flexible installation and adjustment, and superior anti-buoyancy stability, significantly improving the overall construction progress. Simultaneously, the operational efficiency of the construction joint waterproofing and formwork deformation monitoring system is also significantly improved. This construction technology demonstrates multiple technical advantages in practical applications, including high quality, high efficiency, and high returns, with outstanding application results.

The application belongs to the technical field of waterproofing of building engineering, and provides a high-strength puncture-resistant railway tunnel waterproofing and draining plate and a preparation method thereof, according to mass percentages, raw materials include: 30-35 wt% polyolefin elastomer POE, 40-45 wt% high-density polyethylene, 20-30 wt% antioxidant reinforcing master batch; the antioxidant reinforcing master batch includes, by weight parts: 6-8 parts of nano-SiO2, 20-28 parts of EPDM-g-MS, 60-70 parts of linear low-density polyethylene, 1-3 parts of antioxidant, and 1-3 parts of ultraviolet resistance agent. The railway tunnel waterproofing and draining plate provided by the application not only satisfies all the performances specified in Q / CR562.3-2018, but also has more excellent tensile properties and puncture resistance.