Can anyone tell me the detailed steps for lofting and measuring road construction using a total stat

Updated on technology 2024-03-28
8 answers
  1. Anonymous users2024-02-07

    Define the horizontal alignment first, that is, draw the path you want in the total station first.

    Then stake out the line according to the station, and put out the point you want to stake out according to the station number, the left pile, the center line of the right pile, or something.

    These things are rough, if you want to be specific, you can copy the keywords in this Baidu yourself. Too lazy to write.

  2. Anonymous users2024-02-06

    1.Check the design drawings.

    2.Find out the defects in the design and submit it to the design department.

    3.Measure the design pile in the early stage, and accept the control pile.

    4.The first wire measurement of the construction unit, the first joint measurement of the leveling point.

    5.The results will be submitted to the supervisor for inspection.

    6.After passing the inspection, it can be used for construction.

    7.With the acceptance results, put the middle line of the road, the red line, the side pile, the protective pile, and the infill pile lead point.

    8.Measure the elevation of the original ground, check whether the elevation of the original ground of the anti-excavation or subgrade filling given by the drawings is too big, if it is too large, it is necessary to pass 9The project manager shall declare the change of engineering quantity, submit it to the supervisor for inspection and signature, and then submit it to the owner for approval.

    10.Normal construction, each layer of subgrade soil construction, double pile, elevation.

    11.Every 3 months, check the original elevation points and traverse points.

    12.Before the completion of the project, and the supervisor again jointly measure the traverse points and elevation points, out of the data, ready for acceptance. Restore the middle pile side pile.

    13.If there is a pavement construction unit, the data of each point will be handed over to the pavement construction unit to ensure that the pavement is smoothly connected.

    14.After completion, cooperate with the supervision and quality inspection station to accept the geometric dimensions and elevation.

    At this point, the basic traffic engineering survey work was completed.

  3. Anonymous users2024-02-05

    Summary. Hello dear, the total station is a high-precision, multi-functional measuring instrument, which is widely used in the fields of civil engineering and construction engineering for measurement and lofting work. The steps for construction lofting using a total station are as follows:

    1.Preparation: Determine the area that needs to be measured and lofed out, and adjust the position and orientation of the total station according to the actual situation.

    2.Measure control points: Use a total station to measure the coordinates and elevation data of control points and store them in the instrument for later use.

    3.Lofting: According to the design drawings or other requirements, select the corresponding control points on the site, measure their coordinates and elevation data, and use the total station to output the relevant measurement results to guide the construction personnel to lofting.

    4.Checking and adjusting: During the lofting process, the measurement results need to be constantly checked and adjusted to ensure their accuracy and reliability.

    It should be noted that the specific operation and use of the total station may vary depending on the brand and model. Before carrying out construction lofting, please be sure to read the equipment manual carefully, and carry out sufficient training and practical operation.

    Hello, dear, the total station is a high-precision, multi-functional measuring instrument, widely used in the fields of civil engineering and construction engineering in the field of measurement and lofting. The steps of using the total station for construction lofting are as follows: 1

    Preparation: Determine the area that needs to be measured and lofed out, and adjust the position and orientation of the total station according to the actual situation. 2.

    Measure control points: Use a total station to measure the coordinates and elevation data of control points and store them in the instrument for later use. 3.

    Lofting: According to the design drawings or other requirements, select the corresponding control points on the site, measure their coordinates and elevation data, and use the total station mold to output the relevant measurement results to guide the construction personnel to lofting. 4.

    Checking and adjusting: During the lofting process, the measurement results need to be constantly checked and adjusted to ensure their accuracy and reliability. 5.

    Recording and Reporting: Record the results of total station measurements and generate corresponding reports and documentation for subsequent reference and management. It should be noted that the specific operation and use of the total station may vary depending on the brand and model.

    Before carrying out construction lofting, please be sure to read the equipment manual carefully, and carry out sufficient training and practical operation.

    Hello A15 to S01 How to operate.

    If you are referring to transferring a value from a15 to s01, you can do so by following these steps:1Open Excel or other electronic software.

    2.Enter the value to be transferred in cell A15. 3.

    Move the cursor over cell s01. 4.Press the "=" key in cell S01 and enter "A15", which means transfer the value from A15 to S01.

    5.Press the Enter key to complete the transfer of values. It is important to note that when transferring the values, make sure that the target cell is not being used or contains other volumes.

    In addition, when dealing with large amounts of data, it is recommended to use tools such as Excel to improve efficiency and precision.

  4. Anonymous users2024-02-04

    1. Preparation before field operation: check whether the total station is within the qualification period of the appraisal certificate and determine whether it is available normal equipment; Check whether the total station pin spiral and trim isohelix are in the initial zero position; Whether the tools such as steel ruler, altimeter and thermometer in the instrument box are complete, create a new project in the total station, and upload the known control point coordinates and lofting point design coordinates to the new project of the total station.

    2. After arriving at the job site, open the instrument box, set up the total station at the known control point, and turn on the machine to warm up for 2-3 minutes, check the altimeter and thermometer, read the air pressure and temperature, and enter the specified items of the total station.

    3. Align the total station and carry out the station orientation work. Enter the station point number a, the total station automatically extracts the coordinates and elevation corresponding to the known control point, after confirmation, measure and input the instrument height inquiry and input the backsight point number b, the total station automatically extracts the coordinates and elevation corresponding to the known control point, ask and input the backsight point prism height, and finally report and confirm the backsight point point number and the prism high telescope aiming at the backsight point prism, and then press the measurement button and confirm, complete the check of the side length of the station's backsight orientation work: use the lofting function in the all-battle instrument to loft the backsight point b, Check whether the error of the starting edge length is in line with the accuracy, usually the relative error of the measured edge length and the coordinate backcalculated side length should be less than 1 4000.

    Otherwise, there is a problem with the test site or rear viewpoint.

    4. Start the lofting work. Enter the lofting point number, and the total station automatically extracts the coordinates and elevation corresponding to the known control points, and displays the direction and distance between the lofting point and the survey site. Rotate the horizontal dial to the direction of the lofting point, lock the horizontal dial, use the telescope for rough aiming, guide the ruler to reach the direction of the predetermined lofting point, and inform the ruler to move the prism rod to the left and right in the direction of the instrument.

    Instruct the ruler to adjust the prism so that the prism is within the line of sight of the telescope, and finally reach the vicinity of the crosswire of the telescope of the whole battlearm, and then measure the distance, the whole battleball shows the front and back deviation of the current prism position, and informs the ruler to extend the shortened distance relative to the instrument. When approaching the design coordinate position of the lofting point, the telescope aims at the root of the prism rod, and instructs the ruler to adjust the direction so that the root of the prism rod is located in the direction of the vertical wire of the telescope, and then beats the vertical direction to aim. Quasi-prism, measure the distance again, and notify the ruler again to extend the shortened distance relative to the instrument, until the direction of the final lofting point and the offset of the distance meet the lofting accuracy requirements (in the above lofting process, the horizontal dial is always locked in the direction of the lofting point, and the surveyor must instruct the ruler to adjust the position of the prism to reach the specified direction) to confirm and notify the ruler to nail the pile, after the prism is erected again at the pile position, ask the prism height, and after the measuring station modifies the prism height, measure and record the coordinates and elevation of the actual lofting point.

    5. Identify the pile position of the lofting point to the on-site personnel of Party A, and sign and confirm on the lofting inspection form.

    6. After the lofting is completed, return to the room to export the measured coordinates and elevation of the lofting point pile position from the whole battle instrument, and prepare the lofting report, such as the lofting inspection form, the lofting point coordinate table, etc.

  5. Anonymous users2024-02-03

    1. Make sure you can find at least three control points.

    2. Choose the way you want to lof, both the rear rendezvous or the direct erection of the measurement station 3, the rear rendezvous will put the total station in the place where the three control points can be seen, and the erection of the test station will be directly placed on one control point and the other two can see the place of the control point.

    4. The rear rendezvous directly enters the coordinate elevation of point 1 point 2 and sets its own prism height, the purpose is to let the instrument calculate the elevation of its own position, and the control point of point 3 is to determine that it is set accurately. To set up the measuring station, you can directly enter the coordinates and elevation of the control point below the erection of your own instrument, and you need to enter the height of the instrument, and then enter the rear view point to set up the station, and measure the remaining known points one by one for verification.

    5. After setting up the total station, select the coordinate lofting option (different instruments are called differently), enter the coordinates you need to loft and select lofting, there will be two parameters in it, there will be a row of numbers that will change with the rotation of the total station, when the coordinates are the position of the ray after zero, after determining the direction, you need the little brother to run the rod, when the other row of numbers is also zero, it is the coordinates you need to lofting.

  6. Anonymous users2024-02-02

    The total station construction lofting methods are:

    1. Horizontal angle measurement.

    Press the angle measurement button to make the total station in the angle measurement mode and aim at the first target a; Set the horizontal dial reading in the A direction to 0°00 00; Aiming at the second target b, the horizontal dial reading displayed at this point is the horizontal angle between the two directions.

    2. Distance measurement.

    Set the prism constant, the prism constant must be input into the instrument before ranging, and the instrument will automatically correct the measured distance. Set the atmospheric correction value or air temperature and pressure value, the propagation speed of light in the atmosphere will vary with the temperature and pressure of the atmosphere, 15 and 760mmHg is a standard value set by the instrument, and the atmospheric correction at this time is 0ppm. The gauge is high, the prism is high and input into the total station.

    3. Coordinate measurement.

    Set the 3D coordinates of the survey site. Set the coordinates of the backsight point or set the horizontal dial reading of the backsight direction to its azimuth. When setting the coordinates of the backsight point, the total station automatically calculates the azimuth of the backsight direction and sets the horizontal dial reading of the backsight direction to its azimuth.

    Sets the prism constant. Set the atmospheric correction value, air temperature, and pressure value. The gauge is high, the prism is high and input into the total station.

  7. Anonymous users2024-02-01

    First: select a known point, set up the instrument, level-center, enter the coordinates of the point to set up the measuring station, and at the same time set up a prism by another person at another known point.

    Second: after entering the coordinates of the backsight point, aim the total station at the prism for rear viewing, ranging - recording.

    Third: Drop the point, enter the coordinates of the point that needs to be staked out.

    Fourth: rotate the total station so that the horizontal angle is 0 degrees, and then set the prism on the extension line of the total station eyepiece, move back and forth, so that the measured horizontal distance is zero, so that the point lofting is completed.

    The total station, that is, the electronic total station, is a high-tech measuring instrument integrating light, machinery and electricity, and is a surveying and mapping instrument system integrating horizontal angle, vertical angle, distance (oblique distance, flat distance) and height difference measurement functions. Compared with the optical theodolite, the electronic theodolite replaces the optical dial with a photoelectric scanning dial, and replaces the artificial optical micrometer readings with automatic recording and display of the readings, which simplifies the operation of angle measurement and avoids the generation of reading errors.

    Because it can complete all the measurement work on the station by placing the instrument at one time, it is called a total station. It is widely used in the field of precision engineering measurement or deformation monitoring such as large-scale above-ground buildings and underground tunnel construction.

  8. Anonymous users2024-01-31

    The steps for linear lofting with a total station are as follows:

    1. Before we measure, we must first select two points, and after selecting the points, we must now take out the instrument and put it in the position selected before, and then debug or sort out the instrument. It is also necessary to measure the height of the instrument to the ground, so as to facilitate accurate measurement and calculation later. Using the calculator, start with a point-to-line lofting program (which is often used in this program), then calculate the deviation from the measurement point to the line, and then move the prism until the measurement point is calibrated on the line.

    2. Focus on the instrument, observe whether the prism above is in the center of the total station cross wire, if not, I need to focus on the instrument first, turn the prism to the position of the rear sight point, and then let it align the center of the total station cross wire, if it has been aligned with the cross wire, you can directly proceed to the next step.

    3. Turn on the start button of the total station. To set up the total station, after we enter the program setting interface, we first need to select "Coordinate Lofting". Because it is the first step of the total station, if the first step is not done well, all the mistakes will be made later.

    Then go to set the "Bearing Angle". Then set the angle.

    4. After the total station is completely set, you can enter the interface of the measurement point. To first enter the data of the height of the instrument we have just measured from the ground in the instrument, and then click "Confirm". Then we enter the location coordinates of the measurement point, etc.

    Once the input is complete, the corresponding loft measurements can be made.

    5. In the interface of stocking, we must first adjust the instrument to ensure the accuracy of the instrument measurement. All the DHR parameters of the instrument in the "Angle" interface should be zeroed and then fixed. The measurement point is then aligned in a straight line with the center of the crosswire and prism of the instrument through the prism, and the measurement is performed.

    After the measurement, remember the data, then set up the next lofting point and take the lofting measurement, until all the measurements are completed and the data is written down, and it is over.

    6. After the measurement is completed, you should exit the program of the instrument, and turn off the device like a mobile phone, and then disassemble and install the total station.

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