105results about How to "Reduce project cost" patented technology

The invention relates to track traffic and tunnel categories, in specific to a super-deep foundation pit construction method for high pressure water areas. The method adopts underground continuous walls (or drilling piles, drill biting piles and corresponding waterproof curtains) as enclosure structures and inner supports as support structures; in the premises of complying with pressure water safety factor that is required in specifications, perform open excavation down to a certain elevation; during the course of open excavation method, carry out casting for surrounding purlins, supports and upper side walls; then, add water into the foundation pit, and the water injection height should guarantee the excavation to the bottom can resist pressure water and meet certain safety factors; perform underwater excavation down to the baseplate elevation and overbreak a certain depth for underwater bottom closing concrete cast; then, pump water out of the foundation pit before casting baseplate and back-casting remaining internal structures.

The invention discloses a pervious concrete brick with high strength. The brick comprises the following raw materials: ordinary portland cement, broken stones, phosphogypsum, lithium slag powder, steel slag, coal ash, silica fume, iron tailing sand, metakaolin, mixed fibre, straw powder, a water reducer, poly(styrene-co-butadiene), a silicone acrylic emulsion, redispersible latex powder, macroporous resin, an epoxy resin adhesive, ethylene diamine tetra (methylene phosphonic acid) sodium, diisopropanolamine, sodium hyposulfite, calcium lignin sulphonate, and water. The pervious concrete brick with high strength has the advantages of high compressive strength, excellent water permeability, and good frost resistance.

The invention discloses a drawing method of a power network wind zone distribution map in a mountainous area. The method comprises the steps of data acquisition, data processing, data analysis, wind zone calculation model establishment, wind zone division, wind zone distribution map drawing and the like, the distribution map which can reflect recurrence periods of instantaneous maximum wind speed of the mountainous area can be obtained finally, the route design can be guided, the design which can be applied to adjusting measures to local conditions is conducted according to the instantaneous maximum wind speed wind zone level to drain wind deflection, the project manufacturing cost is reduced, the design which can be applied to selecting the safest and economical line route and prevent wind deflection accidents when building or transformation is conducted on a transmission line can be guided, and the problem that in the prior art, the wind zone distribution map drawing method can not meet the requirements of prevention and control work of wind deflection accidents in plateau mountain areas is solved; the technical problems that in the prior art, the wind zone distribution map lacks years of proofs of data collection, statistics of acquisition and modeling comparison and lacks theoretical support are solved.

The invention relates to a multicomponent fiber composite asphaltic concrete and the preparing process thereof. The concrete comprises rough aggregates, fine aggregates, powdered ore filler, asphalt and multicomponent fiber material, the blending amount of the multicomponent fiber material is 0.2-0.4% wt of the mass of the multicomponent fiber composite asphaltic concrete. The preparing process of the concrete is firstly heating the aggregates to 170 DEG C to blend with the multicomponent fiber, then to blend with asphalt with temperature of 150 DEG C to 170 DEG C, then adding powdered ore filler to mix evenly and employing Marshall compacting process to compact each of the two sides of the multicomponent fiber composite asphaltic concrete 75 times, or employing rolling method for molding, rolling back and forth for 15-18 times, or employing rotary compacting method to select rotary compacting times for molding as the case might be. The invention has important economic and social sequences in terms of large-scaled popularization and application of multicomponent fiber composite asphaltic concrete on pavement with high grades, decreasing the cost of construction projects, improving running quality of pavement and the like.

The present invention discloses a cross thin-wall pipe-sinking equipment for vibration-pipe sinking pile-filling machine and its application method. Said cross thin-wall pipe-sinking equipment is formed from pipe body and flapper pipe point. The pipe body and cross flapper pipe point are connected by means of hinge, the cross-section of the pipe body is a cross form, when the cross thin-wall concrete pipe is used for strengthening soft ground base, firstly the cross thin-wall pipe-sinking equipment is mounted on the vibration pipe-sinking pile-making machine, the cross thin-wall pipe can be wedge-inserted into soft ground base to reach the design depth, then the concrete is poured into the cross thin-wall sunken pipe, the sunken pipe is vibrated while drawing out the sunken pipe until thecross thin-wall concrete pile is completely poured.

The invention relates to a construction method of sprung roof plates by use of a movable type pipe truss platform. The construction method is characterized in that the movable type pipe truss platform is set up on a crane beam to realize rapid construction of the sprung roof plates; a pulley, a left limit block and a right limit block are arranged on the inner side of the bottom of a truss support for effectively preventing a truss from movement and preventing from detachment from the crane beam during movement; the construction method comprises the steps of assembling plane trusses on the ground, connecting the plane trusses to form a space truss, carrying out load testing, setting up a platform scaffold, mounting the sprung roof plates and moving the platform to the next room; compared with the prior art, the construction method has the beneficial effects that the setting-up operation of an all-round scaffold is avoided due to the movable type pipe truss platform, so that the construction cost is reduced; the structure is simple and easy to implement; subarea construction of air operation and ground operation can be adopted to form the three-dimensional cross operation, so that the construction is rapid; the pipe truss is provided with a left limiter and a right limiter, and therefore, the pipe truss is safe and reliable.

The invention relates to a combined supporting construction method of a steel sheet pile used in a silt soil slope. The steel sheet pile is arranged below the middle portion of the silt soil slope, the soil body stability of the slope is accordingly improved, the slope soil pressure is resisted, and slope collapses caused by the soil body gravity effect are avoided; on the basis that slope repairing and pat pressing are completed, soil nailing wall hanging net concrete spraying is carried out on a slope soil body to close the slope face, the slope soil body is further strengthened, and the slope instability due to sand liquefaction caused by rain water invasion is accordingly prevented. According to the combined supporting construction method, two supporting methods are used in a combined mode, a large number of labor fees and material fees are saved, the construction cycle is shortened, and the comprehensive technical performance of the combined supporting construction method exceeds the traditional supporting effect. The robustness of the combined supporting construction method is quite excellent, the supporting and water stopping effects are met, and the steel sheet pile can be repeatedly used to achieve the aim of reducing the manufacturing cost.

The present invention discloses a compound purifying method and device of cultivation wastewater which is accomplished by the following processes. The deposited cultivation wastewater after filter seeps through deadwood to carry through anaerobic and denitrogenating treatment and then seeps through bamboo charcoal and limestone to carry through aerobic aeration treatment; after internal electrolysis treatment and absorption treatment, the wastewater purifying is accomplished and the wastewater is discharged. The device system has no machinery and is simple and convenient to maintenance. Workers after simple training can self operate and maintain. The present invention aims at the characteristic of high COD, total nitrogen, total phosphorus and solid suspended substances content of cultivation wastewater. The present invention has designed a distributed treatment flow and has the advantages of simple device, easy acquisition of material and easy maintenance. The present invention can solve the purifying problem of cultivation wastewater in culturing farms with small or medium scale.

The invention discloses a spare power automatic switching programmable logic control method for a plant supply of a power station based on a fieldbus communication technology. In the method, an electric spacing layer fieldbus network 1 for the power station is adopted; and a main control unit acquires data of a comprehensive protection device and a measurement and control device on a spacing layer bus, so the spare power automatic switching function of a station-service power supply can be realized in the main control unit. By the method, the limitation of the conventional spare power automatic switching device is broken through, and the conventional spare power automatic switching device is saved. The whole logical configuration is more intuitional by using the parallel node communication function; as the data global share and the data quality take participation in the logic, the whole logic configuration is more flexible and convenient; therefore, the flexibility and the usability of the system are enhanced. The method has obvious advantages in the aspects of flexibility of realizing the station-service power supply backup switchover logic and saving of equipment investment.

The invention discloses an anchor pile type caisson foundation, which includes a foundation body. A bore grouting pile is arranged below the foundation body. The invention also discloses a construction technique for an anchor pile type caisson foundation which includes the following steps: (1) sinking the caisson to a designed elevation; (2) drilling and grouting concrete in the caisson to form a bore grouting pile; (3) pouring bottom sealing concrete at the lower end of the caisson to carry out bottom sealing; (4) sealing the top part of the caisson. The invention fully optimizes the characteristics of the caisson foundation and a pile foundation; has a plurality of advantages and characteristics of reducing the construction cofferdams, reducing the project amount of the foundation, fastening the construction speed and having remarkable economic benefits; has extremely high popularization and application values.

The invention discloses a soft soil foundation air-water displacement and consolidation method which comprises the following steps of: firstly, drilling a soft soil area requiring reinforcement according to vertical and horizontal layout with the intervals of 5 to 10m; inserting air pipes into boreholes, and connecting the air pipes and cross joint air valves with an air compressors and the air pipes inserted into the boreholes; arranging vertical and horizontal drainage channels between the boreholes; and then pressing air into the boreholes; filling air in the foundation soil layer requiring reinforcement; using air pressure to squeeze out groundwater in the soft soil layer to achieve air-water replacement; when the pressed-in air bursts out from the earth surface, stopping pressing the air into the soil layer and quickly deflating so that non-saturated soil produces compressive deformation under the load action of an overlaying soil layer, thus achieving the aim of reinforcing the foundation soil. By applying the invention, the depth of soft soil foundation drainage consolidation is unrestricted, the engineering cost is low, and project implementation process is simple and convenient, thus quickly producing the reinforcing effect of deep soft soil foundation and being suitable for the reinforcement treatment of complex environment soil foundations including offshore slopes and the like.

The invention belongs to the technical field of polluted soil in-situ repair, and particularly relates to a two-phase vacuum suction device with auxiliary chemical leaching and a method for repairing soil thereof. The device mainly comprises a leaching solution box, a booster pump, a leaching pipeline system, a vacuum suction pump, a gas-liquid separator, a liquid-phase processing unit, a gas-phase processing unit and an intelligent electric control system. The method comprises the following steps of: installing the leaching pipeline system on the surface of a polluted site, selecting a leaching agent as well as the dosage and the concentration of the leaching agent according to the pollution situation and the hydrogeological condition of the site, and washing pollutants into a leaching solution after the leaching is concluded; and then starting the vacuum suction pump, and sucking the leaching solution out of the surface by applying a vacuum and then further processing the leaching solution. The device and the method disclosed by the invention have the characteristics of being rapid, economic, efficient and the like, and have a good removal effect for organic matter pollution and heavy metals, wherein the removal rate can achieve 80-90%, the construction cost is saved by 45-65% compared with the traditional one, and the operation management expense is saved by about 25-35%.

The invention discloses a method for constructing from the central area to the periphery of an ultra-large type underground engineering, comprising the following steps of: firstly, sloping and excavating to the bottom of a pit in a middle area of the underground engineering; then, directly constructing a bottom plate of a basement in the middle area, and upwards constructing to finish a floorslab structure of the underground engineering; and establishing a peripheral bracing system by using the finished floorslab structure in the middle area as a bracing point to finally finish the construction for the peripheral basement. By utilizing the characteristic of large plane size of the underground engineering, the middle area is sufficiently utilized to slope for construction firstly, the underground engineering in the middle area is constructed upwards, and a peripheral area is provided with a permanent beam slab or temporary bracing as a bracing by taking a top beam slab of the underground engineering in the constructed middle area as the bracing point, so that the defects of causing difficulty in excavating and transporting soil in the peripheral area and controlling the stress direction of the peripheral diagonal bracing, affecting the engineering progress and improving the construction difficulty due to the adoption of the traditional central island construction method is foundationally overcome.

The invention relates to a vacuum prepressing method of a sand-free cushion layer of a secondary circulation line system. In the method, the steps of superficial layer vacuum quick solidification, superficial layer vacuum secondary solidification and impacting compaction are used for prepressing, and the method specifically comprises the following steps of: distributing geotextile, a vertical plastic drainage short plate, a transverse plastic drainage short plate, a main drainage pipe and a secondary drainage pipe, wherein a vacuum film, a side ditch pressing film and a vacuum pump are arranged on the geotextile; paving a movable track and the vertical plastic drainage short plate; impacting and pressing a slag layer by using an impacting compactor, and the like. The invention overcomes the defects of high water content, low bearing capacity, difficult construction, and the like of vacuum prepressing soft foundation treatment and the defects of high expense, large repeated workload, long construction period, and the like of other methods. The invention has the advantages of strong bearing capacity, relatively simple construction, low expense, reduced workload, short construction period and obvious vacuum prepressing side sealing effect.

The invention discloses an installing process of an offshore water taking head caisson of a power plant. The installing process comprises the following steps of water taking head prefabrication, water taking head loading out, semi-submersible barge transportation, semi-submersible barge submergence, water taking head hanging and transportation, water taking head positioning, water taking head sinking installation and water taking head closing elimination. By adopting the installing process of the offshore water taking head caisson of the power plant, a project wharf under construction is effectively utilized as a prefabrication site, existing ship equipment is utilized for transportation and installation, the transportation safety of the water taking head caisson is ensured, the installing precision of the water taking head caisson is also ensured, the design and code requirements are met, the project quality is effectively improved, project construction costs can be also reduced, and a construction period can be shortened.

The invention discloses a numerical analysis method for stability of a pole tower base on unsaturated expansive soil foundation. According to the method, firstly, a pole tower base model and an unsaturated expansive soil foundation model are created; secondly, corresponding material properties are set for the pole tower base model and the unsaturated expansive soil foundation model respectively; thirdly, correlative analysis procedures are established, grid partition is carried out on the pole tower base model and the unsaturated expansive soil foundation model, boundary conditions for constraining the displacement of the bottom and the periphery of the unsaturated expansive soil foundation model are set, and gravity load and corresponding load on the upper portion of the pole tower base model are applied; finally, operation is submitted, and an operation result is analyzed. The method easily and effectively solves the problems that the pole tower base of an electric transmission lineis deformed and the stability is influenced since the water content rate of the unsaturated expansive soil foundation is changed; the bearing force of the unsaturated expansive soil foundation after the water content rate is changed can be obtained, and the numerical analysis method is provided for determining the stability of the pole tower base on the unsaturated expansive soil foundation.

The invention relates to a reinforced plate type fire control joint structure for a space structure. Six I-shaped section beams are fixed between an upper joint plate and a lower joint plate. A chuck I is arranged in a female clamping groove at the first layer. A cylinder reinforcement ring II or a prism reinforcement ring II is arranged between the chuck I and the lower joint plate. A pipeline is fixed to one of the I-shaped section beams, and a sprayer head is arranged in an equipment hole II and connected with the pipeline; or, at least one chuck II is arranged in female clamping grooves at all layers between the female clamping groove at the second layer and the female clamping groove at the Nth layer. If one chuck II is adjacent to another chuck II, one cylinder reinforcement ring I or prism reinforcement ring I can be arranged. If the chucks II are adjacent to the upper joint plate, one cylinder reinforcement ring II or prism reinforcement ring II can be arranged. Precasting and connecting of sub-parts are simple, detailed design can be conducted in combination with the stress conditions to improve the bending moment and shearing force transmission capacity, space is reserved for passing of pipes through a non-closed web zone, and due to use of a built-in spraying facility, the service building occasions of an aluminum alloy net shell structure are widened.

The invention discloses a terrain reformation method of a complex-terrain wind farm. The method includes: realizing terrain modeling, and performing meshing of a calculation basin model; setting boundary conditions of a calculation basin; and solving the calculation basin model in a solver according to the boundary conditions set in the solver. According to the method, reasonable terrain reformation height can be determined, the turbulence level of a preselected position is reduced within the usage requirement of a fan, the earthwork excavation cost is greatly reduced, the lowest engineering cost is guaranteed, a certain guiding significance is provided for microscopic location selection of local terrains of the complex-terrain wind farms, the method is applicable to the flow field analysis and scheme economy analysis in microscopic location selection of the wind farms, and the application prospect in engineering is good.

The invention provides an energy-saving boiler feed pump drive system for a thermal power plant and solves the configuration problem of the water feed pump of a current thermal power generating unit and the problem that the water feed pump is high in energy consumption. A synchronous automatic clutch is disposed between a small steam turbine and a synchronous motor. A planet gear speed regulating device is disposed between the synchronous motor and the water feed pump. The synchronous motor is connected into a plant bus through a synchronizing switch. The water feed pump can be driven by the small steam turbine or the motor, the reliability is higher than a traditional steam pump manner or electric pump manner, optimized operation according to unit back pressure conditions can be achieved, and the drive manner of the water feed pump can be switched timely to save energy. An independent steam discharge cooling system for the small steam turbine is not needed, steam discharged from the small steam turbine can be directly discharged into a mainframe steam discharge system, influence on water feed adjusting due to the fact the shaft power of the small steam turbine is affected by back pressure sudden drop caused by high back pressure and heavy winds does not need to be worried about even for direct air cooling units, and system simplification and project construction cost lowering are facilitated.

The invention belongs to the technical field of construction engineering and particularly relates to a construction method of a novel vertical shaft horizontal rotation jet grouting pile foundation pit lateral wall water stopping curtain. The method includes: a vertical shaft is disposed on the periphery of a foundation pit, and a horizontal rotation jet grouting pile water stopping structure is constructed in the vertical shaft to serve as the foundation pit lateral wall water stopping curtain. The method has the advantages that the horizontal rotation jet grouting pipe can be only constructed to a position above the underground water level, part of useless water stopping curtain is omitted, diseconomy caused by the vertical water stopping curtain used by some foundation pit projects is avoided, and resources such as manpower and material resources are saved; meanwhile, the horizontal rotation jet grouting pile water stopping curtain and a pit bottom water-resisting layer form a sealed water resisting system, precipitation out of the pit is avoided, water resource waste is reduced, and the method is significant to spring water protection of the spring city.

The invention belongs to the groundstill foundation work technical field and relates to a method integrating retaining piles and a dewatering well in the supporting system with piled anchors. The technical proposal of the invention mainly comprises the following three parts: the first part is mainly about drilling holes and putting gravel (1) to the bottom of the holes; the second part is mainly about a sleeve and an annular sealing structure, with the annular seal structure connected with the bottom of the sleeve and put into the hole together with the sleeve; the third part is about the reinforced concrete (6) between the sleeve and the wall of the hole and is the strained part. The invention has the advantages of a safe and reliable supporting system, low manufacturing cost and short working period. Because the retaining piles and the dewatering well are constructed at the same time, the construction procedures are reduced, a large amount of construction material is saved, thereby reducing the construction cost greatly and shortening the construction period.

The invention discloses a structure used for temporarily reinforcing a soft soil foundation. The structure comprises two to five layers of steel wire nets. A graded crushed stone layer is paved between each of two adjacent layers of the steel wire nets. The peripheries of adjacent two layers of the steel wire nets are connected through vertically connected iron wires. The invention also discloses a construction method of the structure. According to the invention, the layered-distributed structure with the graded crushed stones wrapped by using the steel wire nets is used for temporarily reinforcing the soft soil foundation, such that construction cost is low, and construction period is short. Therefore, a soft soil foundation construction tight schedule problem can be well solved. The structure and the construction method are suitable for the construction of various soft soil area temporary roadbeds and working platform foundations.

The invention provides a rotation type station used for a vacuum environment, which is characterized in that the station comprises a sealed vacuum environment; the sealed vacuum environment consists of a vacuum pipeline, a vacuum chamber and buffering bins; a train tray, a turntable and a rotary track are arranged in the vacuum chamber; the train tray is arranged on the turntable; through rotational motion, a vacuum train can be in butt joint with all the buffering bins distributed on the periphery; an air-tight door, a front air inflation sealing ring and the buffering bins can realize isolated sealing between the vacuum environment and an atmospheric environment; the end of the vacuum pipeline is provided with a valve; the valve is used for realizing partition sealing between the vacuum chamber and the vacuum pipeline; and the vacuum chamber is connected with a vacuum pump set. The rotation type station has the beneficial effects that the engineering cost is low, the construction difficulty is little, the sealing property is good, and the commercial prospect is very wide, so that the rotation type station can not only fill in the blank of relevant technologies, but also bring greater social and economic benefits.

The invention relates to a bridge construction method for combining turning with height regulation. The method comprises the following steps of turning and height regulation, wherein the step of turning comprises the step of carrying out a bridge turning operation above the designed line position of a bridge to be turned, and the step of height regulation comprises the step of lowering the body ofthe bridge to a designed elevation. By use of the bridge construction method provided by the invention, the bridge turning operation is firstly carried out above the designed line position of the bridge to be turned, then, the body of the turned bridge is lowered to the designed elevation so as to be convenient in fully meeting a space requirement in a bridge turning process and avoiding interference with surrounding structures or railway overhead line poles and the like which can not be relocated or modified, meanwhile, the bound limitation of the turned railway/ road can be met, the longitudinal slope of the railway/ road is effectively lowered, driving comfort is improved, and an engineering construction cost is lowered.

The invention provides a grouted rubble and concrete combined gravity retaining wall, which comprises a wall body composed of a grouted rubble layer and a concrete layer. The grouted rubble layer and the concrete layer are connected together in a toothing structure, and drain pipes penetrating through the inner side and the outer side of the wall body are arranged inside the wall body. The concrete layer serves as the body of the wall, while the grouted rubble layer is used as inner filling, or the grouted rubble layer serves as the body of the wall, and the concrete layer is built on the tension side. The gravity retaining wall of pure concrete combined with the grouted rubber has manufacturing cost more reduced. Retaining capacity of grouted rubble retaining walls of the same sectional size can be improved evidently, stability of the walls is better, and construction convenience is not decreased for the walls. The grouted rubble and concrete combined gravity retaining wall has excellent technical progress significance and economic value in application to high-quantity large-scale slope retaining projects for water conservancy, buildings, highways and railways.

The invention relates to the technical field of flue gas emission of a power plant, in particular to a flue gas treatment system. The flue gas treatment system comprises a flue gas generating device,an indirect cooling tower (1), and a flue gas purifying unit and a chimney (6) disposed in the indirect cooling tower. The bottom of the indirect cooling tower comprises an intake structure and a radiator for heating the air at the intake structure to obtain hot air disposed at the intake structure, and the flue gas generating device is disposed outside the indirect cooling tower and is communicated with the flue gas purifying unit, so that the flue gas in the flue gas generating device enters the flue gas purifying unit for purification treatment and a clean flue is obtained, the chimney is communicated with the flue gas purification unit and extends upward along the center line of the indirect cooling tower at least to the throat of the indirect cooling tower, so that the clean flue gasis discharged into the indirect cooling tower via the chimney and discharged under the carriage of the hot air. As the chimney and the flue gas purification unit are arranged in the indirect cooling tower, the flue gas treatment system saves the industrial land and achieves safety discharge of the flue gas.

The invention discloses a method for improving the compression resistance bearing capacity of a concrete prefabricated hollow pile. In a static test of the concrete prefabricated hollow pile, the method can be used for improving the bearing capacity of the concrete prefabricated hollow pile when the vertical ultimate bearing capacity of a single pile can not meet the maximum loaded capacity of a test pile. The influence of a filling core is not taken into account in the design of the concrete prefabricated hollow pile, and the bearing capacity of a pile body meets actual design requirements; the influence of the filling core is taken into account in the process of static load detection, the bearing capacity of the pile body meets the requirement for the maximum loaded capacity, and the designed value of the compression resistance bearing capacity of the concrete prefabricated hollow pile is determined and appropriately improved conveniently according to the detection result; in addition, the length of the filling core is determined according to the detected maximum loaded capacity of the pile body and pile side resistance. The method for improving the compression resistance bearing capacity of the concrete prefabricated hollow pile is suitable for the situation that the compression resistance bearing capacity of the pile body is insufficient when the vertical ultimate bearing capacity of the single pile of the concrete prefabricated hollow pile is determined in the static test, is simple, is easy to implement, is effective, can appropriately improve the characteristic value of the bearing capacity of the single pile according to the detected vertical ultimate bearing capacity of the single pile, and saves construction cost.

The invention belongs to the field of slope treatment and discloses a novel in-hole point anchor slide-resistant pile barricade. The in-hole point anchor slide-resistant pile barricade comprises a slope top, slide-resistant piles, point anchors, anchorage sections and horizontal slumping arches, wherein the slide-resistant piles are arranged between the slope top and a slope bottom; anchor cables are disposed on the surfaces of the slide-resistant piles at intervals; one end of each anchor cable is provided with one anchorage section; the point anchors are disposed between the anchor cables and the slide-resistant piles; the horizontal slumping arches and vertical slumping arches are disposed between the point anchors; and a sliding fracture surface is disposed between the anchorage sections and the anchor cables, and the anchorage sections are arranged inside the sliding fracture surface. An in-pile point anchor technology combines the advantages of both a piled anchor method and a point anchor method, the structure safety can be ensured in the construction period, and the construction cost of the projects can be reduced; the novel in-hole point anchor slide-resistant pile barricade has the same construction method as that of a traditional piled anchor system; the structure of each pile body is small in size, the number of steel bars is small, the construction cost is low, and the construction period is short; and the defect that traditional point anchor support methods do not have vertical supports is avoided.

The present invention relates to a construction method of a water-stop combined continuous wall precasted by centrifugation. In order to form the water-stop combined continuous wall of the present invention, the concrete bodies (1) of a plurality of reinforced concrete members are proximately arranged with the lower sections planted into the ground, and each concrete body is structured as: water-stop grooves (2) are symmetrically arranged longitudinally from the head to the tail; each side can be provided with one or more water-stop grooves; water-stop material (7) is filled into water-stop cylindrical cavities (3) formed by the water-stop grooves of two adjacent concrete bodies; the top of each concrete body is provided with a connecting plate (4), which is provided with a preformed hole (6) in which a bar reinforcement (8) can be plugged; a cap beam (5) and the concrete bodies are casted together by the connecting bar reinforcements, the connecting plates and concrete, and the cap beam connects the arranged concrete body members as a whole to form an integral continuous wall. The present invention has the advantages of low construction cost, short construction period, good water-proof property, resource saving, reliable quality and high safety.

The invention discloses a cast-in-place pile end slurry supplying and grouting device and method. The device comprises a sounding pipe or steel pipe used for a slurry supplying and grouting channel, a probe used for breaking through the bottom of the sounding pipe or steel pipe, a probing rod used for conveying the probe to the pile end of the cast-in-place pile end and a counterforce device used for driving a static penetrometer of the probe; the sounding pipe or steel pipe embedded in the cast-in-place pile required to be subject to slurry supplying and grouting is selected to serve as the slurry supplying and grouting channel, the probe is mounted at one end of the probing rod, the other end of the probing rod is connected with the static penetrometer, the probe is conveyed to the bottom of the sounding pipe or steel pipe through the probing rod, the counterforce device of the static penetrometer is started, pressure is applied to the probe, the bottom of the sounding pipe or steel pipe is broken through, and finally a grouting pipeline system is put into the bottom of the slurry supplying and grouting channel to be subject to pile end slurry supplying and grouting construction of the cast-in-place pile.