42results about How to "Less manpower and material resources" patented technology

The invention discloses a construction waste recycling and reusing process, which comprises the following steps of: 1, collecting waste concrete, waste mortar and waste brick slag; 2, smashing and screening, namely smashing and screening the collected waste concrete, the collected waste mortar and the collected waste brick slag to obtain regenerative rough aggregates and regenerative fine aggregates; and 3, preparing foam concrete, namely firstly preparing cement slurry, namely uniformly stirring concrete, water, the regenerative rough aggregates and the regenerative fine aggregates to obtain the cement slurry, and secondly adding a foam dilution solution, namely adding the foam dilution solution formed by uniformly mixing a foaming agent and water into the cement slurry, and uniformly stirring to obtain the foam concrete. The steps of the process are simple; the investment cost is low; the process is simple, feasible and high in operability; the waste concrete, the waste mortar and the waste brick slag can be effectively reused; the economical benefit is outstanding; the produced foam concrete material is high in heat preservation performance; and the problems that the construction waste is abandoned and stacked randomly and occupies the land, the waste of resources is severe, and the environment pollution is severe are solved.

The invention discloses a quick measuring method based on a laser ranging device. The quick measuring method comprises the following steps of: 1, selecting a standing point, that is to say, selecting an observation point, which is beneficial for observation of a GPS (Global Positioning System), as a standing point P1 of a measuring worker; 2, measuring geographical coordinates of the standing point, that is to say, measuring geographical coordinates P1 (B1, L1) of the standing point P1 by utilizing a GPS measuring device; 3, measuring by the laser ranging device, that is to say, measuring horizontal distances s among a true azimuth angle A12 of a straight line of the standing point P1 and a point to be measured P2, the standing point P1 and the point to be measured P2 by utilizing the laser ranging device, wherein the laser ranging device is a laser ranging device provided with an electronic compass; and 4, converting the geographical coordinates of the point to be measured P2. The quick measuring method, provided by the invention, has the advantages of simple operation, convenience for implementation, quick measuring speed, high measuring precision, and capability of really realizing quick and accurate measurement of a detail point, and effectively solving the problems of slow measuring sped and difficulty in measurement of the conventional handheld GPS measuring method.

The invention discloses a building roof construction process. A construction roof comprises a roof structure plate, a parapet wall and a roof surface layer, wherein the parapet wall is arranged above the roof structure plate, the roof surface layer is paved on the roof structure plate, a roof exhaust system is arranged on the construction roof and comprises a plurality of first horizontal exhaust pipes, the first horizontal exhaust pipes are respectively laid in a slope finding layer or a heat insulation layer in the roof surface layer, two ends of each first horizontal exhaust pipe are respectively connected with a vertical exhaust pipe, and the vertical exhaust pipes are embedded in the side walls of the parapet wall and a discharge flue or the side wall of an exhaust passage. The construction process of a construction roof comprises the steps of 1, surveying and setting out; 2, parapet wall, discharge flue and exhaust passage construction; 3, horizontal exhaust pipe positioning installation; 4, exhaust pipe connection; 5, roof surface layer construction; and 6, rigid protecting layer mesh division and caulking construction. The construction process has the advantages that the steps are simple, the operability is high, the realization is convenient, in addition, the work efficiency is high, the construction effect is good, and the construction quality of the construction forming building roof can be effectively ensured.

The invention relates to a traffic accident road base map information processing method based on a topographic map and an image. The method comprises a first step of pre-processing topographic map data, a second step of pre-processing image data, a third step of matching the topographic map data processed by the first step and the second step with the image data, a fourth step of selecting various road information on the topographic map data and the image data according to set code requirements and automatically generating a road base map, and a fifth step of revising the road base map through field investigation and plotting. Compared with the prior art, the traffic accident road base map information processing method based on the topographic map and the image has the advantages of being high in mapping precision and full in data covering and the like. The data is easy to transfer and store, and traffic accident management time can be shortened.

The invention discloses a hidden city flood prevention wall comprising a plurality of door bodies which are adjacently arranged, and the fracture surfaces of the door bodies are in the shape of inverted T; each door body comprises a water blocking door plate and wing plates located at the bottoms of the back side and the front side of the water blocking door plate; the wing plates are perpendicular to the water blocking door plates; the bottoms of the water blocking door plates are fixed to the top of one side of a water drainage ditch through a plurality of rotating supporting hinges; the water blocking door plates can rotate to the side of the water drainage ditch by 90 degrees from the erected state; when the water blocking door plates rotate to the side of the water drainage ditch by 90 degrees and are in a laid-down state, the water blocking door plates are flush with the municipal road ground; a plurality of telescopic supporting rods are connected in the wing plates of the bottoms of the back sides of the water blocking door plates and can be in lap joint with the top of the other side of the water drainage ditch after being pulled out, and therefore the water blocking door plates can be stabilized in the erected state; and the telescopic supporting rods are connected with the top of the other side of the water drainage ditch in a fastened manner through bolts. The flood prevention wall is safe, economical, convenient and fast to install and easy to store after being used, the city flood prevention requirement can be met, and it is guaranteed that the hidden city flood prevention wall, the urban landscape and roads are harmonious and unified.

The invention discloses a simulation method for a rectangular ultrasonic transducer sound field. The simulation method includes the following steps of 1, establishing a space rectangular coordinate system; 2, regionalizing a fourth quadrant; and 3, simulating a sound field of a rectangular ultrasonic transducer under a simulation software environment by a computer. Specifically, 301, setting and storing initial parameters; 302, setting a coordinate of an arbitrary point P (x,y,z) in sound field radiation space, 303, judging and mapping the position of the point P (x,y,z), 304, determining function relationship h (x,y,z,t)=rec_response (x,y,z,a,b), 305, determining space pulse response h (x,y,z,t) of the transducer by the space point P (x,y,z), 306, determining transient sound pressure p (x,y,z,t) of the transducer by the space point P (x,y,z), 307, determining sound pressure maximum pmax (x,y,z) of the transducer by the space point P (x,y,z), and 308, determining sound pressure distribution rule of the rectangular ultrasonic transducer. The simulation method for the rectangular ultrasonic transducer sound field is novel and reasonable in design, convenient to be realized, low in cost, high in simulation efficiency and high in accuracy, provides theoretical basis for optimizing the design of the rectangular transducer and making nondestructive testing process, and is high in practicability.

The invention discloses a construction method of a large-span continuous beam closely next to an existing line deep water foundation. The large-span continuous beam to be constructed is a reinforced concrete box beam located on one side of an existing railway line, and is formed by splicing two side-span beam segments, a middle-span beam segment and two pier top beam segments. The construction method of the large-span continuous beam to be constructed comprises the steps that 1, bridge piers are constructed; 2, the pier top beam segments are constructed, specifically, pier top brackets are installed and pre-pressed, formworks are erected on the pier tops, and concrete is poured to the pier top beam segments; and 3, side-span and middle-span closure construction is carried out, specifically, after construction of the two pier top beam segments is completed, closure construction is carried out on the middle-span beam segment and the two side-span beam segments through a hanging basket. According to the method, the steps are simple, design is reasonable, construction is easy and convenient, the using effect is good, construction of the large-span continuous beam closely next to the existing line deep water foundation can be completed easily, conveniently and quickly, and the construction process is safe and reliable.

The invention relates to an installation method for a foundation bolt. A T-shaped foundation bolt hole plugging method comprises the steps that firstly, a foundation bolt sleeve is buried, and the upper surface of the sleeve is higher than an equipment foundation surface; secondly, during foundation retest, the upper surface of the foundation bolt sleeve is cut to be horizontal and polished; thirdly, a plugging steel plate is manufactured, wherein the square steel plate is manufactured by means of a thin steel plate, the side length of the plugging steel plate is 100mm greater than the diameter of a foundation bolt hole, a round hole is formed in the center of the plugging steel plate, and the diameter of the round hole is 1mm greater than that of the foundation bolt hole; fourthly, before equipment is installed, a foundation bolt is sleeved with the manufactured plugging steel plate, and a gap between the foundation bolt hole plugging steel plate and the foundation bolt is sealed though silica gel; fifthly, after the equipment is installed and adjustment and acceptance check are finished, the foundation bolt hole plugging steel plate and the foundation bolt sleeve are welded fixedly, and therefore the foundation bolt hole is plugged. The T-shaped foundation bolt hole plugging method is simple in operation, high in construction efficiency, little in investment of manpower and material resources, and little in environmental pollution.

The invention discloses a safety construction method of a cast-in-place reinforced concrete crash barrier. The method includes the following steps that when top plate reinforcing steel bars are arranged on a cast-in-place concrete box girder, lifting-lug-shaped embedded reinforcing steel bars are installed in the position of a box girder web in the bridge direction; after a box girder top plate ispoured, the embedded reinforcing steel bars are tightly combined with concrete, and the portions, higher than the concrete, of the embedded reinforcing steel bars are each in a lifting lug shape; a hanging basket is connected with a self-propelled trolley through a cantilever beam; the self-propelled trolley moves in the bridge direction, and after the self-propelled trolley walks to a preset construction position, a steel rope on a trolley tail of the self-propelled trolley is connected with the embedded reinforcing steel bar closest to the self-propelled trolley and fixed through an anti-separation clamp; and a worker enters the hanging basket to conduct construction operation. The overturning risk of the hanging basket can be reduced when a formwork on the outer side of the crash barrier is installed and detached.

The invention discloses an unsymmetrically loading tunnel construction method. The method comprises the steps of 1, determining basic mechanical parameters of surrounding rocks; 2, determining a supporting scheme of arch parts of a tunnel and a supporting scheme of side walls of the tunnel; 3, determining an initial supporting structure of the tunnel; 4, conducting tunnel excavation and initial supporting construction on the tunnel; 5, conducting secondary lining construction on the tunnel; 6, conducting construction on the next section: executing the steps 1-5 again, and conducting construction on the next section; repeatedly executing the step 6 until the entire construction process of the unsymmetrically loading tunnel is completed. The method has the advantages of being simple in process, convenient to implement and good in use effect. The supporting structure adopted for a tunnel anchorage supporting system is designed according to the judgment of instability of the side walls ofthe tunnel, deformation and destruction of the surrounding rocks of the side walls of the unsymmetrically loading tunnel can be effectively controlled, a tunnel arch part supporting system is determined according to the height of the roof caving arch camber when the side wall of the tunnel is in a stable state, requirements of stable supporting of the tunnel are satisfied, and construction costs are low.

The invention discloses a coal mine underground gas extraction drilling failure evaluation system, which comprises a parameter acquisition module used for acquiring geological parameters of a to-be-researched coal seam; the model construction module is used for constructing a gas extraction drilling prediction model; the model prediction module is used for inputting the geological parameter data into a gas extraction drilling prediction model and predicting and judging the drilling operation state according to the judgment indexes; the failure evaluation module is used for performing drilling failure type division according to an evaluation result to obtain a failure type result of each drilling hole; and the failure repairing module is used for repairing the drill holes according to the failure types of all the drill holes, and real-time operation of gas drill hole extraction is guaranteed. The method is reasonable in design, coal seam gas extraction can be guaranteed to reach the standard on the premise that the gas extraction effect is improved and the construction cost is reduced, accurate coal seam gas extraction is achieved, and a theoretical basis and technical guidance are provided for on-site extraction drill hole arrangement.

The invention discloses a construction method of arch ribs of a deck type box arch bridge. The constructed deck type arch bridge comprises the two arch ribs which are symmetrically arranged on the left and right sides. During the construction of the arch ribs of the deck type arch bridge, the construction method comprises the following steps: (1) performing the construction of a lower supporting structure of the bridge; (2) performing the construction of the arch ribs. The process of the construction of the arch ribs comprises the steps of performing the construction of steel arch supports, mounting translation slideways and lifting devices, assembling a steel arch, lifting up an arched support frame, performing the construction of the earlier-construction arch rib, laying the arched support frame downward, mounting transverse-movement driving devices, transversely moving the arched support frame, lifting up the arched support frame, performing the construction of the later-construction arch rib, and removing the arched support frame. The construction method of the arch ribs of the deck type box arch bridge is reasonable in design, simple in construction and good in application effect. The two arch ribs are constructed one after the other by virtue of the steel arch, and the steel arch is supported and transversely moved by virtue of an arch supporting and transverse-movement device, so that the construction process of the two arch ribs can be completed simply and quickly. The construction process is safe and reliable. The construction efficiency of the deck type arch bridge can be effectively improved.

The invention discloses a surrounding rock excavation damage analysis method under a thermal-mechanical coupling condition and application thereof, and the analysis method comprises the steps: building an excavation blasting-unloading-cooling whole-process model of a tunnel, and solving a process control equation comprising thermal stress, dynamic stress and ground stress superposition coupling; therefore, rock heat-force coupling responses of the model under different geological conditions and excavation modes are obtained. The distribution range of the excavation damage area can be determined, the formation stage and the formation reason of rock mass damage can be disclosed, meanwhile, the analysis method has the advantages of being high in calculation efficiency, short in needed time, small in consumed manpower and material resources and the like, and prediction and guidance can be provided for adaptive excavation design of the chamber under the high-temperature and high-pressure conditions.

The invention discloses a method of positioning a transformer in a large frequency converter cabinet and provides a novel method of efficiently solving the problem that the transformer is positioned in the cabinet type frequency converter for enterprises of metallurgy and electric power. Under the condition that a cabinet body or an architectural structure is not damaged, the transformer is smoothly conveyed onto the base of the cabinet, thereby avoiding trivial procedures of manufacturing a door frame and removing the top of the cabinet; and the method can be applied only by processing a few necessary instruments, a lifting bracket in the shape of Omega, paving tracks and the like. The method of positioning the transformer in the large frequency converter cabinet has the advantages of simplicity and convenience in operation, high working performance, small lifting height and steady and reliable positioning process, and has the advantages of avoiding the unpredictable hidden dangers left by damaging the cabinet body or the architectural structure of an electric room, the usages of manpower and material resources are fewer, the positioning efficiency is high, and the installing cost is greatly reduced.

The invention discloses a composite ecological treatment agent for treating blue-green algae as well as a preparation method and application thereof, and relates to the technical field of aquaculture. The composite ecological treatment agent is composed of composite bacillus, zeolite powder, water-sprinkling detoxification vitamin C and granular oxygen according to a weight ratio of (0.9-1.4):(9-11):(0.4-1):1. The composite ecological treatment agent for treating blue-green algae is prepared by crushing the granular oxygen and then mixing the crushed granular oxygen with a mixture of the composite bacillus, the zeolite powder and the water-sprinkling detoxification vitamin C; the composite ecological treatment agent is sprayed into an aquaculture pond where blue-green algae burst, blue-green algae can be prevented and controlled through nutrition competition and an ecological method, pond aquaculture water oxygen deficit caused by algae death after blue-green algae treatment is avoided, and good conditions are created for survival and growth of river crabs and crayfishes.

The invention discloses a bealock type microtopography mountain top wind speed intelligent measurement method comprising the following steps: collecting an original image of a bealock type microtopography with a pre-measured wind speed, and carrying out intelligent image identification processing so as to obtain topographic parameters of the bealock type microtopography; combining the existing wind speed value data of the bealock type microtopography area with topographic parameters of the bealock type microtopography where the power transmission line is located, and fitting an H/R mountain top wind field equation; and combining the topographic parameters obtained through image recognition with a bealock type micro-topography mountain top wind field equation to obtain the bealock type micro-topography mountain top wind speed for establishing the power transmission line. The method is convenient to use and low in cost, necessary data can be provided for safety design when the power transmission line passes through the bealock type microtopography, and safe and stable operation of the power transmission line is effectively guaranteed.

The invention discloses an explosive welding method for a copper-aluminum transition wire clamp. The explosive welding method comprises the following steps that the surfaces of copper blanks are polished, so that the bonding surfaces of the copper blanks have metallic luster, and the surfaces are smooth and flat; the surfaces of covering materials are polished, so that the bonding surfaces of the covering materials and base materials have metallic luster, and the surfaces are smooth and flat; the multiple copper blanks are evenly placed on a bottom plate with the bonding surfaces facing upwards, and supporting objects are placed at the corners of the bottom plate; required explosives are evenly laid in explosive grooves in the upper surfaces of the covering materials, and the detonation velocity of the explosives is 2000 +/-50 m/s; the positions, close to the end parts of the blanks, in the middles of the long sides of the covering materials are set as detonation points; and the explosives are detonated through detonating devices, explosive welding is completed, and copper-aluminum transition wire clamp semi-finished products produced in a large scale are obtained. Explosive welding can be carried out on the plurality of copper blanks on a welding bench at the same time after the copper blanks are spaced, and the manner is simple, few manpower and material resources are invested, and the production efficiency is high.