Forget it, ask me if the landlord wants it. I study architecture. I just made an internship report, which is of little significance. I'll give it to you.

order

Internship purpose:

Through practice, I know the whole process from control survey, topographic mapping to building lofting. Master the basic skills of measuring instrument operation, field measurement and indoor calculation, topographic mapping and so on. With a rigorous and serious scientific attitude, practical work style, hard-working spirit and collective concept of unity and cooperation, the internship task was successfully completed.

Practice content and requirements:

Each internship group completes the following tasks within the area designated by the instructor:

1. Root control survey

(1) Plane control survey: complete the field survey and indoor calculation of a closed traverse with specified accuracy;

(2) Elevation control survey: measure and calculate the elevation of each traverse point according to the closed leveling route.

2. Mapping topographic maps with the scale of 20*20cm and the scale of 1: 500;

3. Set out a building on the topographic map surveyed by this group, determine the coordinates of the intersection of the building orientation and the external wall axis according to the position of the original building (structure), calculate the data needed for the layout by polar coordinate method, and then set out the site and make necessary verification.

Practical process

Field measurement stage:

This internship task is carried out in groups, with 7-8 people in each group, and the team leader 1 is responsible for the division of labor and instrument management within the group. In the control survey, each group is divided into two groups of 3-4 people, and the plane and elevation control survey are carried out alternately.

Before the control survey began, the teacher divided the college into two areas, each area arranged two groups of members, and led the team leader to carry out field survey, selected plane control points and marked them with red paint on the ground. After the completion, my team was assigned to survey the south block of the campus with nine plane control points. Turn off the wires.

Firstly, horizontal angle observation and elevation control measurement are carried out. In order to speed up the survey, the team is divided into two units: one unit measures the horizontal elevation and the other unit measures the horizontal angle. The task of my unit is horizontal angle measurement. We use a J6 theodolite to observe and observe a measurement. I am the chief surveyor in the survey, helping and guiding other students to measure the horizontal angle faster. After several classes of measurement, my classmates and I successfully completed the horizontal angle measurement and elevation control measurement. There are basically no incongruities in the measurement. The final horizontal angle observation error is -3 ",the elevation measurement error is 0.00 1m, and the accuracy is within the allowable error range.

After horizontal angle measurement and elevation measurement, measure the side length. The tool used is a steel ruler with a maximum length of 30m. In order to maintain accuracy, each control point is measured back and forth twice and averaged. In this investigation practice, it is the first time for me to use a steel ruler. After the teacher's teaching, I learned how to read and accept a ruler, which is very helpful for my future work. Finally, under the guidance of our group, we successfully completed the task of side length measurement.

At this point, the field measurement task has been completed and entered the indoor calculation stage.

Indoor calculation stage:

In the indoor computing stage, I am responsible for all indoor computing tasks of this group. At the initial stage of calculation, it is mainly to check the field measurement data records and correct the errors. After verifying all the field survey data records, start the calculation of traverse coordinates. In the calculation, I encountered some problems, such as the orientation of the direction angle and how to calculate the coordinate increment. With the teacher's careful teaching and his own efforts, I solved many difficulties and finally worked out the correct value with accuracy. In this calculation, I got another chance to review what I learned before, and corrected some mistakes I neglected in the past. For example, in this azimuth calculation, I am not clear about the boundary between the inner angle and the outer angle, which leads to the final calculated value being completely opposite to the actual value. After this lesson, I understand that both indoor and outdoor measurements should be meticulous. Through this indoor calculation, I have a deeper understanding of the content and significance of indoor calculation, which is of unparalleled great help to my future practice.

After the calculation stage is completed, a large-scale topographic map will be drawn.

Surveying and mapping large-scale topographic maps;

1. Drawing preparation

Before drawing, draw a coordinate grid on the diagram with diagonal, and the side length of the grid is 10cm. It is required that the side length error and grid intersection error of the coordinate grid drawn are all within 0.2mm, and the diagonal error is not greater than 0.3 mm. Because we didn't notice this problem at first, the grid error drawn for the first time is greater than the allowable value of the required error. After the teacher corrected me and revised me again and again, I finally drew a grid with an error within the specified value. After I finished the grid drawing, I began to draw the positions of traverse points on the map. After the drawing is completed, measure the distance between two traverse points on the drawing with a ruler for inspection. After inspection, the difference between the measured distance between two points on the map and the actual horizontal distance is less than 0.3mm on the map, and the map is valid within the allowable range of error.

2. Topographic mapping

The mapping scale is 1/500, and the joint mapping method of level and small flat instrument is adopted. The team at the time of mapping is a group of boys in the whole class, and I have been in charge. Use a tape measure when measuring the side length with a short distance. After measurement, the error is within the allowable range.

3. Architectural layout

When surveying and mapping the original map, people choose places with open spaces for architectural layout. In order to make the layout simple, the building is a right-angled quadrilateral with the scale of 1/500, which is drawn directly on the topographic map to measure the coordinates of the two corners of the building. Check with coordinate inverse algorithm and find some mistakes. After correction, check again. Select the point 10 as the traverse point of lofting, calculate the data needed for lofting by polar coordinate method, and draw a sketch.

After the drawings are completed, my data is selected as the building lofting data after verification by the teacher, and the field lofting practice is carried out. The final correction error after lofting is within the allowable error range. At this point, this internship investigation activity was successfully concluded.

internship summary

After this measurement practice, I have gained a lot and found that I still have many shortcomings to correct. For example, in the indoor calculation stage, I made a mistake about the left and right azimuth. I think it will be easier to correct this problem after I find it through this internship.

For this internship, I also fully understand the importance of mutual cooperation among students. Measurement is a high-precision and wide-range work, and it is far from enough for a person to do this work well. In the field survey, we give full play to the team spirit, and in the horizontal angle survey and other projects that need long-distance cooperation, my classmates and I seriously complete the survey task.

Through this survey practice, I have a further understanding and understanding of the major of architectural survey. I believe that through more systematic and comprehensive internships like this in the future, plus my own efforts, I will be more handy in this respect and can also play the best level in my future work.