512results about How to "Improve drainage capacity" patented technology

The invention discloses a method for harmlessly treating lithium slag and preparing a water-stable material from the treated lithium slag. The method comprises the following steps: crushing the lithium slag; mixing a sulfuric acid-containing material with the crushed lithium slag to obtain a pulpified mixture; roasting, and carrying out chemical modification to obtain roasted slag; adding a material containing activated aluminum oxide into the roasting slag to obtain a mixed material; the mixed material is subjected to water leaching and filtering, and leaching residues and leaching liquid are obtained; and drying the leaching slag, adding an exciting agent, and grinding to finally obtain the detoxified lithium slag. And preparing the water-stable material from the detoxified lithium slag. Under the condition of effectively improving the quality of the cement-stabilized layer, the lithium slag resource is effectively utilized, the resource utilization rate is improved, and the mechanical strength and corrosion resistance of the cement-stabilized layer concrete can be effectively improved by matching with the exciting agent and the curing agent.

The invention discloses a soil ecological restoration method suitable for plant transplantation and a plant transplantation method, and relates to the technical field of soil ecological restoration, and the method comprises the following specific implementation steps: S1, soil evaluation; s2, pollutant treatment; s3, soil improvement; s4, covering and protecting soil; in the step S1, the structure, texture, pH value, nutrient content, pollutant level and the like of the soil are comprehensively analyzed; the method comprises the following steps: testing the pH value and saline-alkali content of polluted soil needing planting, digging away soil with high saline-alkali content, and backfilling soil with low saline-alkali content; or an isolation system is arranged, materials such as lime and slag are used for isolating saline-alkali soil from alien soil, films and the like are transversely used for isolating surrounding saline-alkali soil, and the cost is low. According to the soil ecological restoration method suitable for transplanting the plants and the plant transplanting method, the water content and permeability of the soil are improved through layer-by-layer improvement of the soil, the physical properties of the soil are improved, and growth of the plants is facilitated.

The invention relates to the technical field of municipal drainage pipeline one-map modeling processing, in particular to a municipal drainage pipeline one-map modeling processing method. The method comprises the following steps: extracting pipeline structure data based on a municipal drainage pipeline diagram, carrying out rainfall flood drainage main road analysis, and predicting the rainfall flood drainage capability of the main road. And calculating the pressure of the main trunk of the drainage pipeline, and carrying out bearing capacity analysis, including pipeline deformation, fracture probability evaluation and bearing capacity evaluation. Urban rainfall and topographic data are obtained, a runoff drainage pipeline network structure model is constructed, and water flow overload carrying analysis is carried out. According to the water flow overload carrying data and the bearing capacity data, real-time drainage optimization is carried out, and the drainage effect of the drainage pipeline network is improved. According to the method, the real-time drainage technology of the municipal drainage pipe is more efficient and safer through one-map modeling processing optimization of the municipal drainage pipe.

The invention discloses a fuel cell channel number decreasing type snakelike flow field beneficial to water drainage, which comprises a snakelike channel number decreasing type reaction area, the reaction area comprises a plurality of groups of sub snakelike flow channels, the plurality of groups of sub snakelike flow channels are sequentially connected at corners to form a multi-stage reaction area from top to bottom, the channel number in each stage of sub snakelike flow channel is gradually decreased step by step, and the channel number in each stage of sub snakelike flow channel is gradually decreased. An open connection mode is adopted at the connection corner of each stage of sub-snake-shaped flow channel; the multi-channel gas inlet is formed in the initial end of the snake-shaped channel number gradually-decreasing type reaction area; and the few-channel gas outlet is arranged at the tail end of the snake-shaped channel number gradually-decreasing type reaction area. The drainage capacity can be enhanced, the gas inlet and outlet pressure drop can be reduced, and the overall efficiency and stability of the fuel cell are further improved.

The invention discloses a drainage device for foundation pit construction site construction, and particularly relates to the field of foundation pit construction site construction, the drainage device comprises a high-pressure water pump, the input end of the high-pressure water pump is connected with a connecting pipe, one end of the connecting pipe is connected with a water pumping pipe, the top of the water pumping pipe is provided with a floating plate, and the bottom of the water pumping pipe is fixedly connected with a connecting branch pipe. According to the device, firstly, the water pumping pipe and the connecting plate can descend along with descending of the water level through the arranged floating plate, when water pumping is started, the water pumping end can suspend in water, bottom silt is prevented from being directly pumped away, the blocking time of the porous frame and the filtering cover is shortened, liquid in a foundation pit can be rapidly pumped away, and the water pumping efficiency is improved; meanwhile, in the water pumping process, the scraping frame can scrape impurities on the surfaces of the porous frame and the filtering cover while the connecting plate rotates at the bottom of the water pumping pipe through the automatic cleaning mechanism, the filtering and drainage effects are improved, the dredging frequency is reduced, the project progress is not affected, and the drainage efficiency is improved.

The invention discloses a comfortable and durable tire tread pattern structure, and relates to the technical field of tires, the comfortable and durable tire tread pattern structure is used on a tread band, and the tread band sequentially comprises a sub-tread band A, a sub-tread band B and a sub-tread band C from the middle to the two sides in the transverse direction; the tread band is formed by combining a plurality of identical tread modules T in the circumferential direction, the tread modules T replicating in the circumferential direction of the tire and having a predetermined circumferential length J; the tread module T comprises a first pattern groove, a second pattern groove and a third pattern groove which are arranged on the opposite sides relative to the equatorial plane X-X of the tire. According to the invention, a plurality of scientific and beautiful pattern grooves are arranged, and the shape, the width, the section and the like of the pattern grooves are designed again, so that the comfort and the durability of the tire are greatly improved.

The invention provides an erosion gully treatment method, and relates to the technical field of erosion gully treatment, and the method comprises the steps: carrying out the image collection of a to-be-treated region through an unmanned plane, and generating a three-dimensional scene image of the to-be-treated region; determining various construction treatment areas based on the ditch head, the ditch tail and the ditch channel; corresponding treatment construction is conducted on the various construction treatment areas; a plurality of monitoring periods are set, data acquisition is carried out in each monitoring period, and the erosion gully treatment effect is evaluated based on a data acquisition result. The method solves the problems that an existing erosion gully treatment engineering measure needs manual field investigation to obtain a two-dimensional image of a to-be-treated area before engineering planning, the process is time-consuming and labor-consuming, the finally obtained image is generally large in error and directly affects the final treatment effect, and meanwhile after treatment engineering construction is completed, the cost is low. The technical problems that in the prior art, monitoring of treatment projects is lacked, the treatment effect cannot be fed back and adjusted in time, only static treatment is adopted, and the treatment effect cannot be evaluated scientifically are solved.

The invention discloses an anti-settlement subgrade layered filling structure and a construction method, the anti-settlement subgrade layered filling structure comprises soft rock filler layers, a silty sand layer is filled every other soft rock filler layer with a fixed thickness, and a composite geomembrane is laid on the silty sand layer; the composite geomembrane sequentially comprises a curing layer and a drainage layer from bottom to top, the curing layer comprises a plurality of reinforcing units distributed in an array mode, each reinforcing unit comprises an upper layer and a lower layer which are filled with urease and cementing liquid respectively, the urease and the cementing liquid are sealed through the geomembrane, a trigger device is arranged in the upper layer, and the drainage layer is arranged in the lower layer. When the roadbed is settled, the trigger device moves downwards along with the roadbed to solidify the settled part; the drainage layer comprises a capillary drainage structure and is used for transversely guiding water out to the side slope. All the structural layers are matched with one another, outside water is prevented from entering a soft rock filling layer, meanwhile, the drainage capacity of the soft rock roadbed is greatly improved, the disintegration and softening effects of rainwater on soft rock are reduced, the service life of the soft rock roadbed is prolonged, the long-term stability of the roadbed is improved, and applicability is high.

The invention relates to the technical field of flue-cured tobacco planting, in particular to a flue-cured tobacco-rice-green manure rotation planting method and a transplanting device thereof.The planting method specifically comprises the following steps that sowing and seedling raising are conducted on flue-cured tobacco, and after seedling raising is completed, the transplanting device is used for transplanting and planting flue-cured tobacco seedlings on a ridged field; harvesting tobacco leaves after the flue-cured tobacco is mature; secondly, planting late rice after the tobacco leaves are harvested, and sowing astragalus sinicus 20-25 days before the late rice is harvested; and then turning, pressing and returning to the field after the milk vetch blooms in the middle ten days of April in the next year, and planting first-season rice. By introducing the astragalus sinicus, the content of organic matter in plough layer soil is increased, combination of use and cultivation of cultivated land and improvement and fertilization are achieved, the fertility of tobacco field soil is improved, and four-planting four-harvesting in two years is achieved by circularly planting the flue-cured tobacco, the late rice, the astragalus sinicus and the ratooning rice.

The invention discloses a solid waste-based multifunctional tailing asphalt pavement material and a preparation method thereof, and the pavement material comprises the following components in parts by mass: 4.5-5.5 parts of polyurethane modified asphalt, 45-60 parts of titanate modified iron tailings, 2-5 parts of surface activated copper tailing powder, 20-35 parts of copper tailing sand and 0.5-1.0 part of acetic anhydride modified wollastonite fiber. The high and low temperature performance, the durability and the self-healing performance of the asphalt mixture are comprehensively improved by modifying the solid waste tailing material and the asphalt, and the application range of the asphalt mixture is effectively widened.

The invention relates to the technical field of cleaning equipment, and discloses a spraying arm, a dish-washing machine and a control method of the dish-washing machine, the spraying arm comprises a spraying arm main body and a drainage structure, the top of the spraying arm is provided with a water inlet, and the spraying arm main body is internally provided with a water flow channel communicated with the water inlet; a lower spraying hole communicated with the water flow channel is formed in the bottom of the spraying arm main body; the bottom face of the water flow channel is provided with an annular protruding part surrounding the lower spraying hole by a circle. The drainage structure comprises a drainage opening and a blocking piece, the drainage opening is formed in the bottom face of the water flow channel, and the blocking piece is located at the drainage opening. The plugging piece is provided with a closing position and a drainage position, and the drainage opening is closed by the plugging piece at the closing position; and at the drainage position, the plugging piece does not close the drainage opening. According to the spraying arm, the annular protruding part is arranged on the periphery of the lower spraying hole, water can be prevented from flowing out of the lower spraying hole after spraying is finished, water drainage is achieved in cooperation with the water drainage opening, and water dripping of the spraying arm is avoided; meanwhile, the drain opening is sealed during spraying, and water pressure loss can be reduced.

The utility model provides a double-layer roof eave gutter node structure. The double-layer roof eave gutter node structure comprises a reinforced concrete flat roof structure, the parapet wall is fixedly connected with the end part of the reinforced concrete flat roof structure; the fabricated light pitched roof structure is fixedly connected with the parapet wall; the parapet wall is provided with a plurality of flat roof drain pipes; the eave gutter is fixedly connected with the reinforced concrete flat roof structure; a rainwater pipe is arranged in the eave gutter and is used for organized drainage; a wall plate is arranged on one side of the eave gutter. The heat preservation performance and the waterproof performance of the building roofs in the cold and severe cold areas are effectively improved, and the drainage performance of the building roofs in the cold and severe cold areas is effectively improved through the method that the outer eave gutters extend from the pitched roofs and the flat roofs; installation is normative, construction is easy and convenient, materials are saved, economy and attractiveness are achieved, practicability is high, the construction method is compact and reasonable, construction is easy and convenient, the application range of the method is wide, the technical vacancy is made up, and the problems that no clear norms exist and secondary design is unreasonable are solved.

The utility model relates to the technical field of agricultural water conservancy accessory devices, in particular to an ecological drainage ditch structure which can effectively purify sewage, reduce environmental pollution and prevent water and soil loss from influencing the normal drainage effect, so that the working efficiency and the effect of farmland drainage are improved, and the practicability is enhanced. A drainage groove is formed in the top of the ditch body, the vegetation layer is arranged on the surface of the drainage groove of the ditch body, the filtering layer is arranged at the bottom of the vegetation layer, the diversion layer is arranged at the bottom of the filtering layer, and the bottom of the diversion layer is connected with the bottom of the drainage groove of the ditch body through the supporting assembly; the ecological structure can effectively purify sewage and reduce environmental pollution through the combined action of the vegetation layer, the filter layer and the flow guide layer, and reduces labor cost and improves the drainage effect on farmland while maintaining ecological balance and saving energy and reducing emission.

The utility model discloses a multifunctional film-mulching seeding machine, belongs to the technical field of seeding machines, solves the problem that the existing seeding machine cannot complete all cultivation operations of seed seeding, and adopts the technical scheme that the multifunctional film-mulching seeding machine comprises a rack, the rack is provided with a pesticide spraying device, a rotary cultivator device, a ridging device, a seed rope seeding device, a fertilizing device, a drip irrigation tape laying device, a film laying device and an earthing device, the pesticide spraying device comprises a pesticide storage barrel and a pesticide spraying rod, the rotary cultivator device comprises a rotary tillage blade, and the seed rope seeding device comprises a seed rope disc, a seeding pipe and a seeding wheel. The fertilizing device comprises a fertilizer box, a fertilizer discharging box, a connecting pipe and a fertilizing shovel, the drip irrigation tape laying device comprises a storage disc and a laying wheel, the film laying device comprises a film erecting rod and a film spreading roller, the soil covering device comprises a soil covering roller and a soil covering disc, and a notch is formed in the surface of the soil covering roller. The seeder disclosed by the utility model can automatically finish all cultivation operations required by seed sowing.

The invention discloses a large-void open-graded asphalt mixture as well as a preparation method and application thereof, according to the mass percentage, the passing rate of 13.2 mm sieve pores of the large-void open-graded asphalt mixture is 95-100%, the passing rate of 9.5 mm sieve pores of the large-void open-graded asphalt mixture is 39.2-39.6%, the passing rate of 4.75 mm sieve pores of the large-void open-graded asphalt mixture is 7.0-7.2%, and the passing rate of 2.36 mm sieve pores of the large-void open-graded asphalt mixture is 6.2-6.4%. The large-porosity open-graded asphalt mixture is prepared from the following components in parts by mass: 6.0 to 6.2 parts of high-viscosity and high-elasticity modified asphalt, 0.3 to 0.5 part of basalt fiber, 95 to 105 parts of mixed aggregate and 0 to 2 parts of mineral powder, the mixed aggregate comprises the following components in parts by mass: 45-50 parts of a first coarse aggregate with the thickness of 10-15mm, 45-50 parts of a second coarse aggregate with the thickness of 5-10mm and 5-10 parts of a fine aggregate with the thickness of 0-3mm. According to the open-graded asphalt mixture with the large void ratio, the technical problems that in the prior art, a drainage asphalt pavement formed by paving the open-graded asphalt mixture with the large void ratio is poor in pavement performance such as drainage performance, rutting resistance and cracking resistance and poor in durability are effectively solved.

The invention relates to a sponge storage yard arrangement structure of an automatic container and an implementation method thereof, and relates to the field of drainage. The structure comprises a box corner foundation, a filling area, an open drain, two groups of PMG tracks and a surrounding net. The implementation method comprises the steps that a plurality of prefabricated open trench modules and filling area modules are produced in a factory and transported to a construction site to be rapidly assembled; the filling area integrally sinks horizontally, and the pavement is formed by permeable pavement; a multi-stage filtering system is arranged on the stepped open drain; when the storage yard encounters rainstorm, rainwater is naturally accumulated and permeated in the sunken filling area, and if the rainstorm exceeds a certain amount, the rainwater enters the stepped open drain. The mode of'natural accumulation, natural permeation and natural purification 'of a sponge city is met by combining the elevation of the filling area of the container area, the paving of the filling area and the open trench structure of the filling area, and the manufacturing cost and the construction time are saved.

The utility model provides a karst water-rich tunnel partition drainage structure which comprises N tunnel main holes arranged in an arrayed mode, a middle connecting channel is arranged between every two adjacent tunnel main holes for communication, N is an integer larger than or equal to 2, a drainage ditch in one tunnel main hole located on the outermost side is communicated with a drainage hole through a connecting branch hole, and the drainage ditch in the other tunnel main hole located on the outermost side is communicated with the drainage hole through a drainage branch hole. The middle connecting channel comprises a drainage channel and a pedestrian path, the drainage channel is communicated with the drainage ditches in the two adjacent tunnel main holes, and the pedestrian path is communicated with the two adjacent tunnel main holes. According to the drainage structure, water flow of all the tunnel main holes can be collected into the drainage hole to be drained, the risk of tunnel flood is reduced, and meanwhile the drainage channel and the pedestrian path are arranged together so that the construction difficulty can be reduced.

The utility model discloses an ecological planting roof module, and relates to the technical field of roof heat insulation modules. Each roof module unit comprises a module main body, a planting module, a water storage module and a ventilation module; an arrangement cavity is formed in the module main body; an arrangement opening communicating with the arrangement cavity is formed in the top of the module body; a supporting partition plate is arranged in the arrangement cavity. The supporting partition plate divides the arrangement cavity into an upper cavity and a lower cavity. A first communicating hole and a second communicating hole which are communicated with the upper cavity and the lower cavity are formed in the supporting partition plate; the planting module is mounted in the upper chamber; the ventilation module is mounted in the planting module; the water storage module is mounted in the lower cavity, connected with the first communicating hole and used for storing water flowing out of the first communicating hole; and at least one side wall of the module main body is also provided with a water outlet communicated with the lower cavity. The design can improve the heat insulation performance of the building roof, improve the ecological performance and further reduce the energy consumption of the building.

The invention relates to the technical field of flower soil, and particularly discloses a Chinese rose nutrient soil formula and a processing method thereof. The Chinese rose nutrient soil formula comprises humus soil, sandy soil, seaweed-peat soil, organic substances, perlite, river sand, bone meal, ammonium sulfate, monopotassium phosphate and a microbial agent. The seaweed is added into the peat soil, the water retention and fertilizer retention performance of the nutrient soil can be further improved, a continuous nutrient source can be provided for the China rose, and meanwhile, the peat soil has the effect of adjusting the soil pH value, and nutrient absorption of the China rose is facilitated. In addition, by increasing the number and activity of beneficial microorganisms in the soil, ecological balance of the soil is kept, and formation of a soil aggregate structure is promoted.

The utility model discloses a combined type side slope drainage system, which belongs to the technical field of building engineering construction and comprises a longitudinal drainage assembly, a drainage assembly and a drainage assembly, the longitudinal drainage assembly comprises a plurality of longitudinal drainage ditches which are arranged side by side, and the longitudinal drainage ditches are used for being arranged along the longitudinal direction of a side slope and draining water downwards; the transverse water intercepting assembly comprises a plurality of transverse water intercepting ditches which are arranged side by side, and the transverse water intercepting ditches are used for being arranged in the transverse direction of the side slope and communicating with the longitudinal water draining ditches correspondingly; the reinforcing assembly comprises a hanging net piece laid on the upper portion of the surface of the side slope, a soil dressing spray-seeding base material laid on the surface of the side slope and used for covering the hanging net piece, and a reinforcing piece used for penetrating through the soil dressing spray-seeding base material and the hanging net piece and being inserted into the side slope, and the soil dressing spray-seeding base material is used for being mixed with plant seeds. The technical problems that original landforms and vegetation are damaged by slope construction, the drainage effect is poor, newly-sown grass seeds are prone to loss, and the slope is not provided with reinforcing measures can be solved.

The invention belongs to the technical field of environmental protection and slope protection reinforcement of water conservancy projects of thermal power plants, and provides a slope protection and protection method for a downstream soft rock enrockment area of a stepped concrete faced rockfill dam, and the slope protection and protection method comprises a first horizontal drainage body arranged from a preset upstream and downstream enrockment area boundary to the surface of a downstream dam slope; the second horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope, and the third horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope; the boundary of the upstream and downstream rockfill areas is an inclined line from the slope top to the slope bottom; the first horizontal drainage body, the second horizontal drainage body and the third horizontal drainage body are arranged at the preset height positions correspondingly, and the seepage loads in different dam height ranges and the seepage characteristics of downstream soft rock damming materials are fully considered through the design of the three-layer horizontal drainage body structure; a multi-layer smooth drainage channel can be provided for upstream reservoir water leakage and dam face infiltration rainwater at the same time, and the overall stability of a downstream dam slope is effectively guaranteed.

The invention relates to the technical field of drainage devices, and discloses a drainage device for hydraulic engineering, which comprises a water inlet, the bottom of the water inlet is fixedly connected with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a shell, and the bottom of the shell is fixedly connected with a water outlet. Water flow enters from the edge of the water inlet, so that friction force is generated between the first transmission wheel and the water leakage plate for autorotation, impurities such as branches and leaves which are doped in the water flow and easily cause blockage can be crushed, the situation that blockage of the drainage device affects circulation of the water flow is avoided, and the drainage effect of the drainage device is improved; meanwhile, an arc-shaped plate rotates to drive a scraping plate to rotate, so that holes in the surface of the water leakage plate can be scraped open, and the situation that crushed impurities are accumulated at the bottom of the water inlet, consequently, the holes in the inner wall of the water leakage plate are blocked, and the flowing effect of water flow is affected is avoided.

The utility model discloses an automatic constant temperature seed culture device, including box body, culture subassembly and temperature control subassembly, the bottom end of box body is provided with equipment compartment, and the temperature control subassembly is installed in the equipment compartment, the front side wall of box body is installed with controller, the inner wall of box body is fixedly installed with mounting seat, the mounting seat is fixed on the box body. A culture assembly is connected to the mounting seat in a sliding manner; the culture assembly comprises a culture base, water permeable holes are formed in the bottom wall of the culture base, a temperature and humidity detection device penetrates through an inner cavity of the culture base, a drainage assembly is installed below the culture base, and a spraying assembly is installed above the culture base; the problems that in the prior art, in the using process, if too much soil enters, a filter screen is likely to be blocked, the drainage effect is affected, and in addition, a temperature and humidity sensor installed on one side of the inner wall of the top of a supporting hopper is not accurate enough in monitoring precision on the other side of the supporting hopper in the using process are solved.

The invention discloses a green planting box with water storage and drainage functions for agriculture and forestry, and belongs to the technical field of green planting boxes, the green planting box comprises a shell, a supporting rod and a planting bin, and further comprises a water source storage mechanism, the water source storage mechanism comprises a water control bin connected to the outer side of the planting bin in a sleeving mode, and a plurality of mounting grooves are formed in the outer side of the shell; a filtering assembly is arranged on the side, close to the planting bin, of the mounting groove, a water storage assembly and a water source discharging mechanism are arranged on the other side of the mounting groove, and the water source discharging mechanism is arranged in the water control bin and used for discharging redundant water in the shell after the water storage assembly is full of water. The problems that an existing greening planting box cannot store redundant water generated after raining and watering, and consequently water sources are rapidly lost, the planting cost of the planting box is increased, and soil in the planting box is lost are solved.

The utility model provides a building roof drainage structure, which belongs to the technical field of building construction and comprises a roof surface, a fence fixedly arranged on the periphery of the roof surface, a drainage hole formed in the fence, a filter plate arranged in the drainage hole and completely covering an opening of the drainage hole, a containing groove formed in the inner top wall of the drainage hole, and a drainage hole formed in the containing groove. The containing groove is used for containing the filter plate, a driving assembly is arranged on the fence and used for driving the filter plate to move towards the containing groove, the drainage pipeline can be prevented from being blocked by sundries in rain and snow water, and the drainage effect of the roof on the rain and snow water is improved.

The invention relates to gradient hydrophilic and hydrophobic carbon paper and a preparation method thereof.The preparation method comprises the following steps that 1, pretreated carbon paper is soaked in nano-silica dispersion liquid, taken out, dried and subjected to heat treatment, and hydrophilic treated carbon paper is obtained; and (2) spraying hydrophobic modified silane dispersion liquid on the surface of one side of the carbon paper subjected to hydrophilic treatment, drying and then carrying out heat treatment to obtain the carbon paper with gradient hydrophilicity and hydrophobicity in the thickness direction. Compared with the prior art, the method has the advantages that gradient hydrophilic and hydrophobic properties are constructed in the thickness direction of the carbon paper, the water drainage and gas transmission properties of the carbon paper are effectively improved, the process is simple, and the cost is low.

The utility model discloses a garden engineering slope stepped greening structure which comprises a soil filling layer, a building layer arranged at the upper end of the soil filling layer, a plurality of concrete blocks built on the surface of the top end of the building layer, and planting grooves formed in the top ends of the concrete blocks, and further comprises a drainage structure arranged in the building layer, rainwater can be rapidly collected through the water accumulation channel, impurities are filtered out through the first filtering well lid, when accumulated water reaches a certain degree, water can be evenly distributed into all the coagulation blocks through the water accumulation groove, the water guide pipe and the flow dividing pipe, needed water is provided for plants, reasonable utilization of the rainwater is achieved, and meanwhile, the rainwater can be recycled. When the structure is used, redundant water is drained into the drainage channel through the drainage pipe and finally drained out of the structure, damage to the structure caused by accumulated water is avoided, the utilization efficiency of water resources is improved through the design, structural damage caused by accumulated water is effectively prevented, and the stability and durability of the structure are enhanced.

The invention discloses a linear engineering assembly type combined calandria construction method. The construction method specifically comprises the following steps of prefabrication of calandria, excavation of a construction area, arrangement of a cushion layer, installation of the calandria, treatment of connectors and backfilling. The prefabricated standard length of the calandria is 6 meters, and the calandria is provided with connecting holes and spiral compression-resistant ribs; the digging depth of the groove is 1.2-1.5 times of the outer diameter of the calandria, and a water collecting well and drainage measures are arranged; the surface of the cushion layer is provided with a drainage slope and a drainage groove; a QY25K type crane is used for hoisting the calandria, and the alignment precision is ensured; multiple sealing is performed at the joint; and performing layered compaction and settlement monitoring in the backfilling process. According to the construction method, the construction efficiency and quality are improved, and the influence on the environment is reduced.

The present invention discloses a super-long tunnel clean and sewage separation drainage structure suitable for cold regions, comprising a tunnel entrance drainage structure and a tunnel body drainage structure, as well as a clear water ditch outside the tunnel, a deep-buried ditch outside the tunnel, a sewage ditch outside the tunnel and a clean water pool. The tunnel entrance drainage structure comprises a central ditch and a side sewage ditch A. The central ditch is deeply buried below the freezing depth of the main tunnel entrance section. Side sewage ditches A are arranged on both sides of the main tunnel entrance section. The tunnel body drainage structure comprises a side clear water ditch and a side sewage ditch B. Side clear water ditch and side sewage ditch B are arranged on both sides of the main tunnel body section. The advantages are that the separation and discharge treatment of clean water and sewage during tunnel construction and operation are realized, and high environmental requirements are met; the drainage structures of the tunnel entrance section and the tunnel body section are arranged separately, which meets the insulation requirements of drainage in cold regions and can effectively prevent groundwater from seeping into the tunnel to cause freezing disasters; the service tunnel is used to assist in enhancing the drainage capacity of the main tunnel, and a super-large water discharge of the super-long tunnel is realized.

The utility model discloses a radial tire for engineering machinery, which relates to the field of tire design and comprises a tire tread, a linear pattern wall and a U-shaped pattern wall are fixedly mounted on the periphery of the tire tread, a first reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall, and a second reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall. Side pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the linear pattern wall, shoulder pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the side pattern walls, and shoulder grooves are formed in the surfaces of the shoulder pattern walls. The height of the first reinforcing ribs is reasonably arranged, the connecting strength between the pattern walls is enhanced, the overall tear resistance is improved, the second reinforcing ribs are matched, the overall rigidity of the tire is remarkably enhanced, the performance of the tire is improved, and the service life of the tire is prolonged.