2226 results about "Grout" patented technology

The invention belongs to the technical field of grouting compactness detection, and particularly discloses and provides an intelligent detection system and method for the grouting compactness of a bridge prestressed pipeline, and the system comprises a signal acquisition and analysis module, a defect boundary calibration module, a defect recognition and analysis module and a compactness judgment and processing module. The method specifically comprises the steps that acoustic emission and fluctuation response signals are collected in real time through a sensor array arranged on the outer wall of a pipeline, and three-dimensional slurry density distribution is recognized; constructing an inner wall three-dimensional model in combination with a pipeline design drawing, dynamically setting a slurry density threshold value according to a grouting material formula and an environment temperature, and further calibrating a slurry defect boundary; extracting multi-dimensional features such as spatial positions, effective volumes, geometric regularity and types of the defects on the basis of boundaries, and calculating grouting compactness; and finally, according to whether the compactness reaches the standard or not, a grout supplementing early warning instruction or a detection report is automatically generated. According to the method, the reliability of defect identification and compactness calculation under complex working conditions is remarkably improved.

The invention discloses a high-toughness impervious polymer modified cement-based grouting material and a preparation method thereof, and belongs to the technical field of building repair materials. The component A is prepared from a cementing material, an admixture, a fine aggregate, a composite expanding agent, a polymer for concrete modification, fibers, an early strength agent, a water reducing agent, a composite retarder, a defoaming agent, an air entraining agent, a nano material and a functional component. The system solves the technical contradiction of toughness-strength-impermeability in the polymer modified cement-based material, and the material has excellent comprehensive performance: the initial fluidity is greater than or equal to 330 mm, the 28d compressive strength is greater than or equal to 82 MPa, the breaking strength is greater than or equal to 16.8 MPa, the bending-compression ratio is greater than or equal to 0.19, the impermeability pressure value is greater than or equal to 2.6 MPa, and the material is suitable for the fields of prefabricated buildings, tunnel engineering and the like.

The invention relates to the technical field of tunnel engineering building materials, in particular to a double-slurry synchronous grouting material based on shield silty-fine sand and a preparation method of the double-slurry synchronous grouting material based on shield silty-fine sand. The liquid A is prepared from, by weight, 20%-30% of cement, 30%-50% of shield silty-fine sand, 5%-10% of bentonite, 5%-15% of mineral admixture, 0.1%-0.5% of stabilizer and 20%-30% of water, and the stabilizer is a water-soluble high-molecular polymer; the solution B is a water glass solution, and the volume ratio of the solution A to the solution B is (10-15): 1; the double-slurry synchronous grouting material further comprises a retarder and a coagulant, the retarder is citric acid, and the coagulant is a nano Ca (OH) 2 crystal nucleus. Bidirectional and gradient regulation and control of the gelation time between 5s and 100s can be realized through the coagulant and the retarder, and diversified requirements of different geological conditions and construction progress on slurry operation time are met.

The invention discloses a construction method applied to underground mine vertical shaft surrounding rock condition improvement. The construction method comprises the steps that a flat working face is cleaned, a temporary water nest is arranged for drainage, the drilling position is projected, and a down-the-hole drill is debugged; rock drilling is conducted according to the designed angle, direction and depth, propelling pressure is adjusted along with the depth, and cleaning and plugging are conducted after hole forming; grouting pipes with holes are used as pipe sheds to be driven into the holes, and are welded into a whole through annular steel bars; single-liquid-slurry and double-liquid-slurry segmented grouting is adopted, and the grouting pressure is controlled; during construction, grout diffusion and stratum deformation are monitored, after surrounding rock consolidation reaches the standard, weak blasting is matched with a small excavator for excavation, and after acceptance inspection is qualified, reinforcing steel bars are bound, formworks are installed, and concrete is poured. Compared with the prior art, the problems of collapse and water gushing of the vertical shaft under the strong weathering and water-rich geology can be solved, and the defects of insufficient supporting strength, grouting uniformity, construction efficiency and long-term stability in the traditional technology are overcome.

The utility model relates to the technical field of constructional engineering, and discloses structural gap grouting equipment for constructional engineering construction, which comprises a base, a grouting mechanism is arranged at the top of the base, the grouting mechanism comprises a box body and a pump machine, the box body and the pump machine are both fixedly connected with the base, the input end of the pump machine is communicated with the base, and the output end of the pump machine is communicated with the base. The output end of the pump machine communicates with a grouting pipe through a hose, and a moving mechanism is arranged in an inner cavity of the base. By arranging the grouting mechanism, slurry condensation can be avoided, a grouting pipe can be conveniently used for grouting by opening a pump, the device is convenient to move by arranging the moving mechanism, a user can conveniently push the device by pushing a handle, the grouting pipe can be fixed by arranging the adjusting mechanism, and the grouting pipe can be driven to rotate by opening a third motor. The grouting direction can be adjusted conveniently, the height of the grouting pipe can be adjusted by starting the first motor, grouting can be conducted on ceilings, floors and vertical joints, and use is convenient.

The invention discloses an underground water seepage analysis and prediction method based on physical-data cooperative driving, and belongs to the field of underground water seepage, and the method comprises the following steps: establishing a hydrogeological numerical model, carrying out seepage simulation calculation, and carrying out comparison verification with field monitoring data to realize accurate mapping; meanwhile, a machine learning data set is constructed by utilizing a numerical simulation result, a prediction model based on a Stacking integrated learning structure is established in combination with field data of a construction roadway, a water curtain layer and an oil storage cavern layer, and the water seepage amount or the underground water level after excavation of a rock mass in front of a tunnel face is predicted by taking geological, hydrological and construction parameters as input. According to the method, a physical mechanism and data driving are fused, the prediction precision and interpretability are remarkably improved, and a scientific basis is provided for cave depot project grouting and excavation optimization.

The invention relates to the technical field of underground water prevention and control, in particular to a tunnel two-step grouting plugging method for wide crack water gushing, which comprises the following steps of: constructing a grouting hole intersected with a wide crack or a concentrated water gushing channel according to a geological survey result; first rapid plugging slurry is injected into the crack through the grouting hole, and the first rapid plugging slurry can form a temporary water stopping barrier in the flowing water environment; the water outlet amount change and the grouting pressure change of the adjacent observation holes are monitored, and when the water outlet amount is remarkably reduced and / or the grouting pressure stably rises and forms a platform, it is judged that the temporary water stop barrier is formed; and second reinforcing grout is injected into the crack through the grouting holes, and after the second reinforcing grout is solidified, a permanent reinforcing body with mechanical strength is formed. By optimizing the grouting material and the process time sequence, effective combination of rapid plugging and long-term reinforcement is achieved, the grouting reliability is improved, and the engineering cost is reduced.

The invention relates to the technical field of tunnel engineering grouting, particularly provides an intelligent self-adaptive dual-mode cooperative grouting control system, a grouting method and application, and aims to solve the problems of non-uniform grout diffusion, blind area grout leakage and out-of-control grouting pressure of a traditional advanced curtain grouting technology under complex working conditions. The grouting method comprises the following steps that S1, a three-dimensional stratum model used for controlling the dual-mode collaborative grouting process is constructed, and initial grouting parameters are set; s2, on the basis of the initial grouting parameters in the step S1, advancing type segmented grouting is adopted, a three-dimensional stratum model monitors a real-time grouting result, and the grouting parameters are dynamically adjusted; s3, when the real-time grouting result in the step S2 is monitored to be abnormal, drill rod retreating compensation grouting is automatically conducted on a blind area in an abnormal section; and the step S2 is continued after the drill rod in the abnormal section retreats for compensation grouting repair until grouting is completed. In the whole grouting process, the grouting control system operates cooperatively. And the construction safety can be effectively guaranteed when grouting reinforcement projects under complex working conditions are applied.

The invention discloses an inorganic normal-temperature rapid-hardening coal-rock mass reinforcing and filling material, and relates to the technical field of mine reinforcement. The material comprises a liquid A and a liquid B, the liquid A is prepared from cement, fly ash, magnetic nano silicon dioxide, citric acid and a layered bimetal oxide-sodium hexametaphosphate compound; and the liquid B comprises water glass, superfine limestone and water. During use, the liquid A and the liquid B are mixed according to the volume ratio of 1: 1 and injected into a target area, and a 1.5 Tesla magnetic field is applied at the initial stage of grouting until the grout is initially set. Through the synergistic effect of the compound protection dispersing agent, the magnetic particles and an external magnetic field, the technical problems that an existing material is unstable in performance due to temperature change, nanoparticles are prone to agglomeration, and magnetic response is attenuated in an alkaline environment are effectively solved; the technical effects of rapid solidification, high strength and excellent durability in high-temperature, low-temperature and complex mine environments are achieved.

The invention provides a gushing prediction method and system for grouting engineering, and belongs to the technical field of tunnel and underground engineering construction safety monitoring. The method comprises the following steps: collecting grouting pressure, flow, slurry viscosity and micro-seismic event data; calculating a slurry resistance index and a micro-seismic event aggregation density; inputting the initial gushing risk index into a pre-trained machine learning model to obtain an initial gushing risk index and a confidence score; according to whether the confidence score is lower than a preset threshold, selecting direct early warning or entering a parameter correction path; when the confidence coefficient is low, dynamic correction factors are generated based on scores and risk changes, the calculation weight of the slurry resistance index is adjusted, corrected parameters are obtained, and secondary prediction is carried out; and integrating the initial prediction result and the secondary prediction result to obtain a final risk index, and executing graded early warning. According to the invention, the accuracy and reliability of gushing risk prediction are improved through a confidence-driven double-path decision and parameter on-line adaptive correction, and a constructed early warning mechanism.

The invention discloses a grouting splitting pressure simulation device under high-ground and high-water-pressure conditions, and relates to the technical field of tunnel and underground engineering model tests. A first water permeable unit controlled by the water injection unit and a second water permeable unit controlled by the confining pressure unit are respectively arranged at two ends in the length direction, so that water pressure and stratum confining pressure are independently applied. The integrated grouting unit of the device is used for grouting soil in the box and is provided with a comprehensive detection unit, the comprehensive detection unit monitors various parameters such as grouting pressure, water pressure, confining pressure, flow, soil resistance and wave velocity in real time, and independent loading and accurate dynamic control of the grouting pressure, formation water pressure and formation stress can be achieved; therefore, the grouting process of the deep-buried tunnel under the conditions of different burial depths, high water head differences and complex grout characteristics can be simulated in a laboratory with high precision, and the technical bottleneck that the complex environment of high ground stress and high water pressure coupling is difficult to reproduce in a traditional test method is effectively solved.

A recess is provided at the surface of a floor or wall covering between two panels mechanically coupled to each other by a male coupling part and a female coupling part. The recess may include a first recess cut out or otherwise provided at the female edge through the top layer and extending into the substrate. The recess may have a second recess cut out or otherwise provided at the male edge through the top layer and extending into the substrate. The recess includes a grouting material.

The invention relates to the field of tunnel construction, in particular to a tunnel lining vault formwork grouting device which comprises a lining trolley and a waterproof plate, the waterproof plate is arranged on the top wall of a tunnel, lining concrete is poured between a top formwork of the lining trolley and the waterproof plate, and trolley end formworks used for sealing the lining concrete are arranged at the two ends of the lining trolley. A plurality of grouting pipes are arranged on the lining trolley top mold at equal intervals, the top ends of the grouting pipes penetrate through lining concrete and abut against the waterproof plate, the bottom ends of the grouting pipes penetrate through the lining trolley top mold and are connected with one end of a connecting sleeve, the other end of the connecting sleeve is connected with a grout stopping pipe, and the grout stopping pipe keeps open during grouting. And the grouting stopping pipe keeps the pipeline closed when grouting is stopped. According to the invention, the process of grouting with a mold in arch crown subsections is realized, and the slurry is filled compactly by utilizing the slurry blocking effect of the slurry blocking pipe, so that the slurry can be effectively prevented from flowing back and overflowing, and the grouting quality is effectively improved.

The invention discloses a cement concrete pavement slurry lifting thickness real-time detection and control method, and relates to the technical field of concrete thickness control, and the method comprises the following steps: starting a system, and setting a target thickness and a vibration parameter initial value; the radar sensor array transmits and receives concrete surface layer reflection signals at high frequency; de-noising and feature extraction are carried out on the reflected signal, and a feature vector is constructed; a physical information neural network model is utilized to process the feature vectors, and the current slurry thickness is inversed in real time; the deviation between the current thickness and a target value is calculated, and a control decision is made; vibrating equipment is adjusted in real time; real-time data and states are displayed on the terminal, and when the thickness is insufficient, an alarm is triggered and construction is suspended; construction data and logs are automatically stored, and a quality report is generated for tracing analysis. By integrating the high-frequency geological radar sensor array and the physical information neural network inversion algorithm, accurate sensing of the cement concrete slurry extraction thickness and automatic adjustment of vibration parameters can be achieved.

The invention provides a vertical MJS grouting reinforcement system based on an intelligent cloud platform and a construction method, and the system comprises an intelligent front end device which comprises an underground pressure sensor, a tilt angle sensor and a slurry flow meter and is used for collecting grouting pressure, drill rod perpendicularity and slurry flow data in real time; the intelligent cloud platform comprises an Internet of Things module, an intelligent control module and a precise parameter construction module, and the Internet of Things module is connected with the intelligent front-end device and used for receiving collected data; the intelligent control module is used for collecting and recording grouting pressure, grout flow and underground pressure; the accurate parameter construction module is provided with a formation pressure sensor and used for collecting formation response signals and forming dynamic comparison of in-ground pressure and formation pressure, and grouting pressure, grout flow and jetting speed parameters are adjusted through the numerical difference of the in-ground pressure and the formation pressure to control the pile forming diameter. Intelligent monitoring and accurate control of grouting construction are achieved, efficiency and pile forming quality are improved, and manual intervention and stratum disturbance are reduced.

The invention provides a grouting process dynamic control method based on statistical characteristics of a water permeability rate and a grouting amount per meter, which comprises the following steps: collecting water pressure test data (pressure P, flow Q and segment length L) and grouting process data (dry material weight M and segment length L) through a system, and calculating the water permeability rate q and the grouting amount per meter m; sorting and grouping the permeable rate data and the grouting amount data per meter, then carrying out normality test, and respectively establishing a mapping relation table between permeable rate groups and standard deviation values of the grouting amount per meter or percentile values per meter according to test results; in the grouting process, the water permeability is monitored and calculated in real time, the water permeability is matched with the mapping table, and the grout proportion is adjusted in a stepped mode according to the statistical interval where the current grouting amount per meter is located; and after grouting is finished, the grouting effect is evaluated according to the statistical interval where the final grouting amount is located. According to the method, quantitative control over the grouting process is achieved, and the problem that grout is wasted or the diffusion range is insufficient due to the fact that the proportion of the grout is adjusted through experience judgment is solved.

Provided are a grouting subgrade water-vapor-heat coupling simulation method and system, a device and a medium, including: constructing a subgrade water-vapor-heat coupling geometric model; acquiring a partial differential equation of a subgrade water-vapor-heat coupling process, and establishing a relationship between physical fields; setting a temperature and water boundary condition; performing mapping and free triangle mesh generation on the subgrade water-vapor-heat coupling geometric model to obtain a meshing model; selecting initial data, and performing a simulation solution on the meshing model to obtain a water-vapor-heat coupling simulation result; and analyzing the impact of a double-layer polyurethane grouting thermal insulation structure on a temperature distribution, a freeze-thaw cycle depth, and water migration of a subgrade.

The invention discloses grouting body surface roughness measuring equipment and a measuring method, and the equipment comprises a sample forming device which comprises a sample forming box; the liquid injection device comprises a liquid injection container and a connecting pipe, the two ends of the connecting pipe are connected to the sample forming box and the liquid injection container respectively, and first liquid is loaded in the liquid injection container; the measuring device comprises a measuring container and a balance, the balance detects the weight change of the measuring container, and the measuring container is filled with second liquid; and the cooling device is connected with the sample forming box and transmits cold energy. By injecting the first liquid and adopting a cooling condensation mode, the process of actual grouting and waiting for slurry solidification is simulated, the condensation time is shorter so as to save the experiment time, and after the experiment, the sample can be heated to be melted and recycled, the experiment can be repeated for multiple times, and the waste of materials in the experiment process is reduced. Moreover, the second liquid is used for replacing traditional sand, and the second liquid can flow into various tiny gaps, so that the detection precision is higher.

The invention particularly discloses a layered and segmented composite fabricated foundation pit support structure and a construction method. According to the overall technical scheme, double enclosure of deep mixing piles and a cemented soil retaining wall is followed, truss rib laminated slabs are spliced in a layered and segmented mode, an anchor rod group transversely penetrates through the deep mixing piles to be anchored into the cemented soil retaining wall, anchor rod holes are also used as high-pressure grouting holes, anchor rod sleeves guide anchor rods to enter soil and assist the truss rib laminated slabs to be in place, and high-strength grouting materials are grouted at high pressure; according to the design concept of the pile-wall-plate-anchor rod composite type foundation pit support structure, a technical system that a soil layer outside a foundation pit is stabilized through a cement soil retaining wall, force is borne by deep mixing piles, support grouting forming is conducted through a truss rib laminated plate, and overall cooperative bearing is strengthened through anchor rod driving is constructed. And the supporting requirements of complex geological environments and large-depth foundation pits are stably met.

The invention discloses non-dispersible cement for underwater repair of concrete. The non-dispersible cement is prepared from the following raw materials in parts by weight: 30-50 parts of Portland cement clinker powder; 20-40 parts of functional grouting material dry powder; 15 to 30 parts of anti-dispersion reinforcing powder; 2-5 parts of a composite admixture; after the non-dispersible cement is mixed with water, the ratio of the underwater compressive strength of the formed underwater pouring slurry to the onshore standard curing compressive strength is not less than 0.7; therefore, the anti-dispersing agent is compounded with the carrier in advance to prepare stable powder, and the problems that the anti-dispersing agent is prone to caking on site and uneven in dispersion are solved. The single-component dry powder material can be used only by adding water and stirring, the construction is simple and convenient, and the dependence on the process and the cost is reduced while the excellent underwater anti-dispersion property and the early strength property are ensured.

The invention discloses uniform-distribution movable concrete pipe production grouting equipment which comprises a conveying box, stirring rods are rotationally arranged on the front side and the rear side of an inner cavity of the conveying box through driving mechanisms correspondingly, spiral blades are fixedly connected to the surfaces of the stirring rods, and a plurality of stirring blades are fixedly connected to the surfaces of the stirring rods; a feeding port is formed in one end of the top of the conveying box, and the other end of the bottom of the conveying box vertically communicates with a discharging pipe. According to the movable concrete pipe production grouting equipment with the uniform material distribution function, through guiding communication of the transverse pipe, collected dust can be conveyed into an inner cavity of a dust removal cloth bag, then the dust is collected in a centralized mode, airflow is discharged through an exhaust window, the dust is collected, and the device is more environmentally friendly; and the body protection of workers around the device is improved.

The utility model discloses a dam grouting cover plate concrete pouring formwork lifting device, and relates to the technical field of water conservancy projects, in particular to a dam grouting cover plate concrete pouring formwork lifting device which comprises a combined steel formwork, and the upper surface of the combined steel formwork is fixedly connected with a supporting plate. A guardrail A is fixedly connected to one side of the supporting plate, and a steel frame is fixedly connected to the other side of the upper surface of the combined steel formwork. During use, after a grouting cover plate foundation is excavated, a winch is installed on the top of the foundation, a balance weight is made, the combined steel formwork is connected through a steel rope, the winch is used for moving the combined steel formwork to the position where concrete is poured, a formwork balance weight block is installed on the combined steel formwork to be fixed after the balance weight is determined, and the formwork balance weight block is moved out after the concrete is poured. And the combined steel formwork is lifted to the position of the next bin to be fixed through a winch, and after the combined steel formwork is lifted, a specially-assigned person is dispatched to the operation platform for plastering of the previous pouring bin.

The invention discloses a lightweight concrete fabricated building grouting sleeve and a grout supplementing method, and relates to the technical field of constructions.The lightweight concrete fabricated building grouting sleeve comprises a guide rail, two oppositely-arranged pouring mechanisms are slidably mounted at the upper end of the guide rail, and a bottom pouring plate is jointly arranged at the bottoms of the two pouring mechanisms; and two reinforcing meshes are symmetrically arranged at the upper end of the bottom pouring plate. The interface activity modifier is applied to an old slurry interface before slurry supplementing, deep strengthening of a lightweight concrete grouting sleeve connecting area is achieved, the interface activity modifier is guided in through the lower through pipe and the upper through pipe and evenly sprayed to a glass fiber sleeve and the inner wall of a building sleeve mechanism through the through pipe and the transverse pipe, and the strength of the building sleeve mechanism is improved. It is ensured that the modifier can effectively cover the juncture area of new and old slurry, wetting, permeating and chemical activation are conducted on the hardened cement surface, and the bonding strength of follow-up slurry supplementing materials and an original interface is improved.

The invention discloses a ground surface settlement prevention and control method based on mold bag grouting. The ground surface settlement prevention and control method comprises the following steps that geological investigation is conducted, and pile positions are arranged; drilling at the pile position to form a pile hole; the method further comprises the following steps that the main grouting pipe and the geotextile bag on the main grouting pipe are placed into the pile hole together, and backfilling is conducted between the pile hole and the main grouting pipe; pressure grouting is conducted in the main grouting pipe, the grout in the main grouting pipe rises gradually, meanwhile, the grout in the main grouting pipe is pressed into the geotextile mold bag through the secondary grouting pipe, and the geotextile mold bag expands gradually in the radial direction and extrudes the surrounding soil body; and grouting is stopped, and after the grout in the main grouting pipe and the soil engineering mold bag is hardened, the main grouting pipe and the soil engineering mold bag jointly form a mold bag pile body. The construction method has the beneficial effects that the grouting pipes are arranged underground, the expandable mold bags are installed at the preset positions of the grouting pipes, after grout is injected, the mold bags expand directionally and evenly extrude the surrounding soil body, and therefore active compaction of the soil body is achieved, and the rigidity and integrity of a foundation are remarkably improved.

The invention particularly discloses a layered and segmented composite fabricated foundation pit support structure and a construction method. According to the overall technical scheme, double enclosure of deep mixing piles and a cemented soil retaining wall is followed, truss rib laminated slabs are spliced in a layered and segmented mode, an anchor rod group transversely penetrates through the deep mixing piles to be anchored into the cemented soil retaining wall, anchor rod holes are also used as high-pressure grouting holes, anchor rod sleeves guide anchor rods to enter soil and assist the truss rib laminated slabs to be in place, and high-strength grouting materials are grouted at high pressure; according to the design concept of the pile-wall-plate-anchor rod composite type foundation pit support structure, a technical system that a soil layer outside a foundation pit is stabilized through a cement soil retaining wall, force is borne by deep mixing piles, support grouting forming is conducted through a truss rib laminated plate, and overall cooperative bearing is strengthened through anchor rod driving is constructed. And the supporting requirements of complex geological environments and large-depth foundation pits are stably met.

The invention discloses a geopolymer-based recycled fine aggregate shield synchronous grouting material and a preparation method thereof. The grouting material is composed of a cementing material, an alkali activator, aggregate, a water reducing agent, a retarder and water, and the cementing material is a geopolymer precursor and is composed of fly ash, slag and metakaolin; the aggregate is composed of river sand and recycled fine aggregate. By optimizing the proportion and the preparation process, the material has the characteristics of excellent flowability, controllable setting time, high early strength, good impermeability, good durability and the like, and is suitable for synchronous grouting of shield tunnels in water-rich sand layers, high-water-pressure stratums or corrosion stratums. The invention also provides two optimization methods which are respectively based on a response surface method and a BP neural network combined genetic algorithm to realize multi-objective optimization of slurry performance. According to the material, dependence on traditional cement and gravel resources is remarkably reduced, energy consumption and carbon emission are reduced, high-added-value resource utilization of industrial solid waste and construction waste is achieved, and the material conforms to the development direction of green low-carbon building materials.

The invention discloses a rock and soil medium parameter testing and reinforcing method which comprises the following steps: step 1, arranging a plurality of in-situ testing holes and object detection lines on a side slope, a foundation or a filling site, and performing in-situ tests and geophysical prospecting tests, including in-situ drilling shear tests, penetration tests and pore pressure observation, the mechanical property, the permeability characteristic and the pore water pressure parameter of the soil layer are obtained; 2, according to the obtained soil layer parameters, the needed initial grouting pressure, flow and slurry concentration are calculated; 3, grouting equipment is used for injecting grout into the soil layer, and the deformation amount, the pressure change and the permeability change of the soil layer are monitored in the grouting process; 4, according to data monitored in real time, the grouting pressure and flow are adjusted so as to ensure the grouting uniformity and the reinforcing effect, compared with a traditional empirical grouting method, the method has the advantages that the reinforcing uniformity and the anti-seepage effect can be remarkably improved, energy consumption and risks are reduced, and good universality and engineering application value are achieved.

The utility model discloses a post-grouting anti-seepage device for an underground diaphragm wall, which comprises a grouting steel pipe welded at a corner of an I-shaped steel joint of the underground diaphragm wall. The grouting steel pipe comprises a seamless steel pipe, a grout outlet steel pipe and a sealing iron sheet, and the seamless steel pipe is a main body of the grouting steel pipe and forms a grouting main channel; the slurry outlet steel pipe is a branch pipe welded on the seamless steel pipe at a certain interval to form a slurry outlet; and the sealing iron sheet covers the outer side of the slurry outlet steel pipe through spot welding. The grouting steel pipes are pre-buried at the corners of the I-shaped steel, post-grouting is carried out after concrete pouring of the underground diaphragm wall is completed, and through mud joints which are not cleaned up in the I-shaped steel joints are blocked. The construction method is easy to operate, low in manufacturing cost, low in requirement for a construction site, high in reliability and good in grouting, water stopping, seepage preventing and leaking stoppage effects, the waterproofness of the I-shaped steel joint of the underground diaphragm wall can be effectively improved, and a powerful guarantee is provided for the safety of foundation pit construction.

The invention discloses a stone masonry house anti-seismic reinforcing structure and a construction method, and relates to the technical field of house reinforcing. The anti-seismic reinforcing structure of the stone masonry house comprises a wall body, and a door body reserved opening and a window reserved opening are formed in the surface of the wall body. According to the anti-seismic reinforcing structure for the stone masonry house and the construction method, the structural strength and anti-seismic performance of the house can be improved, during caulking, the two sealing blocks are driven by the moving module to move away from each other in a mortar joint, and at the moment, a grouting cavity can be formed among the mortar joint, the two sealing blocks and a sealing plate; a high-performance fiber-reinforced cement-based composite material UHP-ECC can be grouted into the grouting cavity, and the pressure is detected through the pressure sensor, so that the length of the caulking strip is convenient to control, the pressure of the caulking strip during grouting is convenient to control, the conditions that the caulking strip has bubbles and is not compact are avoided, waste of caulking materials is avoided, the caulking quality is guaranteed, and the caulking efficiency is improved. And the reinforcing quality is further ensured.

The invention discloses an ultra-long pile underwater concrete jacking and pouring device and method, relates to the technical field of underwater concrete pouring, and solves the problems of non-uniform concrete pouring pressure and poor pouring effect. The invention discloses a super-long pile underwater concrete jacking and pouring device which comprises a pouring pipeline. The grouting nozzle is mounted at the bottom of the grouting pipeline through a screw; the outer protective cover is mounted on the outer side of the filling pipeline; the concrete jacking and pouring structure is mounted in the outer protective cover and extends into the pouring pipeline and the grouting nozzle; the concrete jacking and pouring structure comprises a gear lifting assembly mounted on one side of the inner wall of the pouring pipeline; and the rotating rod is connected with the gear lifting assembly and extends into the grouting nozzle. According to the concrete pouring device, concrete pouring operation with higher efficiency and more uniformity can be achieved while the uniformity of concrete pouring is guaranteed, the pressure intensity of concrete pouring is guaranteed, and the concrete pouring effect is improved.