55 results about "Construction surveying" patented technology

The invention discloses a construction method of long sleeper buried ballastless turnouts with large size of a passenger transport dedicated line, which comprises: constructing turnouts region base concrete, surveying and setting out of the construction, binding rail bed plate bottom reinforcement, installing a turnout translation trolley, hanging turnout rail sections and unloading, pushing the translation trolley in the position and connecting turnout, coarsely adjusting the turnout, installing a regulation stent and dissembling the translation trolley, binding rail bed plate reinforcement and installing a formwork, fine adjusting and positioning the turnout, pouring rail bed plate concrete, adjusting the formwork and dissembling the stent, welding the turnout steel rail and dispersing stress and closing treatments. The method of the invention has the advantages that the installed long sleeper buried ballastless steel rail panel of the passenger transportation dedicated line is stable and free from deformation; the rail concrete meets the requirements of China made rail circuit transmission; the rail is linear and is provided with high regularity and high accuracy of construction surveying and controlling; steel rail welding joint is of good quality and high regularity.

The invention discloses a lifting adjusting device for construction surveying, and relates to the technical field of building surveying. The lifting adjusting device comprises a supporting frame; anda driving mechanism is connected with a lifting plate for adjusting the supporting frame through vertical sliding through a lifting mechanism, a supporting table driven by a transverse adjusting mechanism is transversely arranged on the lifting plate in a sliding mode, and the supporting table is in transmission connection with a clamping mechanism used for clamping a surveying instrument througha steering mechanism. According to the lifting adjusting device for construction surveying, the lifting mechanism can drive the lifting plate to adjust the upper and lower height positions, so that the surveying instrument on the clamping mechanism can be adjusted in height; the transverse adjusting mechanism is arranged to achieve the transverse adjusting effect of the clamping mechanism, the clamping mechanism is arranged to achieve a stable clamping effect on the surveying instrument, the stability of the surveying process is ensured, and the surveying effect is improved; and the steering mechanism can drive a bracket and the surveying instrument to adjust the angle, so that the adjusting requirement of the surveying instrument during building surveying is greatly facilitated, and the building surveying is efficient and stable.

The invention discloses a cast-in-place construction process for an inter-pile board wall between slide-resistant piles. The inter-pile board wall to be constructed is located between the two adjacent slide-resistant piles. The process includes the steps that firstly, construction surveying is performed; secondly, construction of the slide-resistant piles is performed, wherein the two slide-resistant piles are constructed respectively; thirdly, excavation of inter-pile soil is performed, wherein the soil between the two slide-resistant piles is excavated in multiple layers from top to bottom; fourthly, an inverted filter is stacked on the rear side of the inter-pile board wall to be constructed; fifthly, cast-in-place construction of the inter-pile board wall is performed, wherein a steel reinforcement framework formed by splicing multiple steel reinforcement cages from bottom to top is arranged in the inter-pile board wall to be constructed, multiple drainage hole reserved tubes are arranged in each steel reinforcement cage, and the construction process of the inter-pile board wall to be constructed includes the steps of steel reinforcement framework binding, drainage hole reserved tube laying, formwork erection and concrete pouring. The steps of the process are simple, and the process is reasonable in design, convenient to implement, high in construction efficiency, good in construction effect and capable of solving various problems existing in an existing cast-in-place construction method for the inter-pile board wall between the slide-resistant piles.

The invention provides a method for digitalizing road design data and assisting construction. The method comprises the following steps: (1) designing a road into a road data structure form; step (2),forming road data display based on a Qt graph technology; step (3), based on the definition of a road in engineering measurement, calculating the mutual conversion of an engineering coordinate and a road mileage offset; step (4), by means of definition of the vertical curve and the cross section in the road structure, elevation calculation of any point of a road and earthwork volume calculation ofroad construction are obtained, a road data structure is designed through engineering surveying knowledge, road display is achieved through the Qt graph technology based on the road data structure, and reading, rendering and storage of road data are achieved. And the engineering coordinates and the road mileage offset are mutually converted to realize calculation of the road filling and digging amount.

The invention provides a positioning device for bridge decorative plates. The positioning device comprises an operation platform and a positioning mechanism, wherein the operation platform is arrangedon a pier abutment of a bridge and used for supporting the positioning mechanism, and a guide rail is arranged on the operation platform and used for guiding the positioning mechanism; and the positioning mechanism moves on the operation platform along the guide rail and is used for positioning the decorative plates on the bridge. According to the positioning device for the bridge decorative plates, the guide rail arranged on the operation platform is used for guiding the positioning mechanism, so that the positioning mechanism moves on the operation platform along the guide rail; and the positioning mechanism is used for positioning the decorative plates arranged in the circumferential direction of the bridge, so that the positioning mechanism can position the decorative plates while moving, then the installation of the decorative plates is realized, the process of position finding of the positioning mechanism is omitted, the positioning process of construction surveying and settingout is simplified, and the precision and accuracy of the position of the positioning mechanism are ensured.

The invention discloses a rapid temporary cofferdam construction method. A cofferdam is formed by sequentially connecting a plurality of cofferdam piles. The method comprises the following steps that1, the size and the depth of the bottom, embedded into silt, of the cofferdam are determined according to the fracture size and depth of the cofferdam between adjacent lake parks at a construction site, and the number and the size of the cofferdam piles are determined according to the size of the cofferdam, and according to a determined construction position of the cofferdam, and a water construction surveying and setting-out method is adopted for surveying and setting-out on the cofferdam; 2, the plurality of cofferdam piles are inserted, driven and assembled one by one along a surveying andsetting-out line in the step 1, and backfill cavities are formed between every two adjacent cofferdam piles through combination; 3, the backfill cavities are internally refilled with silt; 4, water inthe lake parks is pumped out through a water pump, and silt in the lake parks is cleared; and 5, the cofferdam is removed. The construction method is simple, the construction efficiency is high, theconstruction difficulty is small, the cost investment is small, and the cofferdam piles can be recycled and reused.

The invention discloses a measuring instrument for building constriction surveying and mapping in multiple environments. The measuring instrument for building constriction surveying and mapping in themultiple environments structurally comprises a surveying and mapping instrument, a positioning supporting disc, three foot stools, foot supports and fixed frames, the surveying and mapping instrumentis fixed to the upper end position of the positioning supporting disc, the three foot stools are in an equilateral triangle shape and distributed and fixed to the lower end position of the positioning supporting disc, the foot supports are arranged at the lower ends of the foot stools, and the foot stools are connected mutually through the fixed frames. According to the measuring instrument for building constriction surveying and mapping in the multiple environments, the foot supports arranged on the foot stools can be rotated and folded up and down, the foot supports are bent downwards whenfacing the cement ground, the ground is supported by the foot supports, the iron pickaxe tail ends of the foot stools are isolated from the cement ground so as to protect an iron pickaxe from being worn due to contact with the cement ground and face the oblique ground by adjusting the length of a middle shaft rod, it is ensured that the opening and closing degree of the foot stools always improvesthe measuring precision through the supporting of the fixed frames, when the iron pickaxe faces soil sandy ground, a material discharging groove adopting a thread shape is formed in the iron pickaxe,soil sand can be discharged through the material discharging groove when being inserted into the soil sandy ground, and the iron pickaxe is more conveniently inserted into the ground.

The invention belongs to technical field of pipeline renewal construction, and discloses a pipe expanding type pipeline renewal construction method increasing stress relief holes. The method includesthe steps of construction preparation, construction surveying and setting out and on-site geophysical prospecting, setting of positioning observation points of road surface soil inlet and outlet points and surrounding pipelines, preparatory work before drilling, test drilling, drilling of the stress relief holes, old pipeline bursting extrusion, sending rack installation and dragging back pipelineracking, pipeline dragging back, slip casting and backfilling of the stress relief holes, on-site cleaning and physiognomy restoration. According to the method, soil displacement can be effectively reduced, and damage to surrounding structures is reduced; traffic impacts are reduced, and social benefits are good; land uplift is not caused, and secondary construction is reduced; the expansion rateof a renewed pipe diameter is larger and the soil density limit is reduced; and the construction period can be effectively shortened, the labor input is reduced, and the work efficiency is improved.Compared with a traditional cut and cover method, a pipe jacking method and a traditional pipe expanding method, the pipe expanding type pipeline renewal construction method has obvious improvements in economic benefits and social benefits and has obvious technical advancement.

The invention discloses a stable type surveying and mapping support for bridge construction. The stable type surveying and mapping support comprises a box and a shrinkage rod which are detachably connected through a balance weight plate, a gasket is installed in the middle of the shrinkage rod, rotary buttons are arranged on the outer side of the gasket, and fixing ferrules are installed above the rotary buttons; cylinder sleeves are arranged on the outer sides of the fixing ferrules, a snap ring is fixedly installed on the outer side of the shrinkage rod through a connecting soft sheet in a sleeving manner, the fixing ferrules are provided with fixing rods and are detachably provided with fixed shrinkage rods in a connected manner, and positioning stabilizer blades are arranged below the fixed shrinkage rods; and circular cone feet are installed below the positioning stabilizer blades, a drawer is installed above the balance weight plate, a baffle is installed above the box, the lower portion of a switch is electrically connected with a power source through a wire, and a USB connector is installed on the outer side of the power source. The stable type surveying and mapping support for bridge construction is stable in structure, multiple in function, convenient to use and suitable for bridge construction surveying and mapping.

The invention discloses a cast-in-place construction process for an inter-pile board wall between slide-resistant piles. The inter-pile board wall to be constructed is located between the two adjacent slide-resistant piles. The process includes the steps that firstly, construction surveying is performed; secondly, construction of the slide-resistant piles is performed, wherein the two slide-resistant piles are constructed respectively; thirdly, excavation of inter-pile soil is performed, wherein the soil between the two slide-resistant piles is excavated in multiple layers from top to bottom; fourthly, an inverted filter is stacked on the rear side of the inter-pile board wall to be constructed; fifthly, cast-in-place construction of the inter-pile board wall is performed, wherein a steel reinforcement framework formed by splicing multiple steel reinforcement cages from bottom to top is arranged in the inter-pile board wall to be constructed, multiple drainage hole reserved tubes are arranged in each steel reinforcement cage, and the construction process of the inter-pile board wall to be constructed includes the steps of steel reinforcement framework binding, drainage hole reserved tube laying, formwork erection and concrete pouring. The steps of the process are simple, and the process is reasonable in design, convenient to implement, high in construction efficiency, good in construction effect and capable of solving various problems existing in an existing cast-in-place construction method for the inter-pile board wall between the slide-resistant piles.

The invention discloses a construction method of long sleeper buried ballastless turnouts with large size of a passenger transport dedicated line, which comprises: constructing turnouts region base concrete, surveying and setting out of the construction, binding rail bed plate bottom reinforcement, installing a turnout translation trolley, hanging turnout rail sections and unloading, pushing the translation trolley in the position and connecting turnout, coarsely adjusting the turnout, installing a regulation stent and dissembling the translation trolley, binding rail bed plate reinforcement and installing a formwork, fine adjusting and positioning the turnout, pouring rail bed plate concrete, adjusting the formwork and dissembling the stent, welding the turnout steel rail and dispersing stress and closing treatments. The method of the invention has the advantages that the installed long sleeper buried ballastless steel rail panel of the passenger transportation dedicated line is stable and free from deformation; the rail concrete meets the requirements of China made rail circuit transmission; the rail is linear and is provided with high regularity and high accuracy of construction surveying and controlling; steel rail welding joint is of good quality and high regularity.

The invention discloses road and bridge engineering construction surveying equipment which comprises a surveying main body and supporting legs, a measurer is arranged on the surveying main body, an eyepiece is arranged on the measurer, a control panel is arranged at the upper end of the surveying main body, and the control panel is located above the measurer. The road and bridge engineering construction surveying equipment belongs to the field of surveying equipment, a protection structure can achieve a dustproof effect, a light shielding plate in the protection structure can achieve a light shielding effect, the light shielding plate is matched with a side plate and other structures to achieve the light shielding effect, it is guaranteed that a display screen on a control panel can be clearly checked under sunlight irradiation, and the control panel is more convenient to use. The rotary protection frame can be overhung to achieve the further protection effect, the protection structure can sleeve the supporting rod when the surveying equipment is not used, potential safety hazards are reduced, and when the protection structure sleeves the supporting rod, the protection structure can achieve the supporting effect, and workers can have a rest midway when carrying the surveying equipment.