How to stake out an unknown building based on a known building 10

Method. 1. Coordinate method.

Generally, there will be coordinate values on the corners of known and unknown buildings, find a position that can observe these two points at the same time and set up a theodolite or a full pole, the angle and distance of the known points on the first side, calculate the coordinates of the observation point, calculate the measurement angle and distance with the unknown point according to the design coordinates of the unknown point and the coordinates of the observation point, and determine the positioning point 1 and the positioning point 2 of the unknown building according to this, so that the unknown building can be determined.

Method. 2. Distance method.

This method is the soil method, which is generally used in rural areas. If two buildings are side by side, drive two nails into the existing building wall (the farther apart the better, with the nails exposing about 5cm from the wall). Take the elastic line and fix it on the nail at the far end, straighten it in the direction of the unknown building, and the other person uses a tape measure to measure the distance between the elastic line and the wall at the two nails, and the person who pulls the wire adjusts the position appropriately until the distance between the elastic line and the wall at the two nails is equal, and the other end of the fixed line is sprinkled with gray line.

The distance between the two buildings is measured on the gray line, and it can be determined.

The two buildings should be on the same general plan, and then find the coordinates of a certain corner of the completed building on the drawing, set up a total station, find the coordinates of several axes and the intersection points of the shafts of the unfinished building, and use the total station to find out the location of the actual point, so that the axis of the building can be determined, and then it can be staked.

If it is a project, the drawings of the axis distance between the buildings are available.

You can set the instrument at any point, but the angle between your station and the wire should be greater than 5 degrees (I remember it seems to be 5 degrees), and the measurement error meets the requirements.

The rear intersection method measures that the position of the two points cannot be in the same circle, and the angle cannot be too large or too small (because it is too large or too small, the probability of two points in the same circle is very high and cannot be measured). Set up the instrument and level it. Find the back-handed interface in the menu interface, enter the known points 1, x, y, z and press OK, and then enter the known points 2, x, y, z Press the measurement (remember to press the measurement, not the determination) and then point to the first point, press OK, set the target height, press OK, aim at the second point, press OK, set the target height, press OK, then the instrument will help you automatically calculate the x, y, z of the test station, press OK, look at the second point after pressing OK, and then you can measure or stake.

The rear rendezvous angle is between 60 and 120 and the error can be controlled within 2 cm.

First, fix the center of the circle of the fan-shaped building, fix the two points of the outer arc of the fan-shaped building, and then rotate around the center of the circle (between the outer arcs) similar to the circle

The initial problem was somewhat contradictory: the coordinates of unknown points were known. Since it is a known coordinate, then it is not an "unknown point".

The total station can be used as a theodolite, and angle measurements can be made without a prism.

The total station is used to establish the station orientation on the two control points, and the so-called unknown point coordinates are input in the lofting mode, and the instrument will automatically calculate the horizontal angle (the horizontal angle here is the azimuth angle, not the included angle) according to the coordinates

The coordinates of the control point and the unknown point are known, and the horizontal angle can be calculated without the need for instrument measurement.

The coordinates on the positioning map are just the opposite of the coordinates we use mathematically, on the shelf at one point, align with another point, and then use the calculated size and angle, after rotation, use a ruler to measure the size you want is the point you want.

If you don't need to convert, you can directly use geodetic coordinates to position the line. Use a total station with CAD computer software.

There is a positioning pay-off diagram in the construction drawing.

Didn't give you the original point, I should have determined a point or an edge for you.

1. The deviation of the axis projection measurement and elevation transmission of building construction lofting should not exceed the provisions of the table.

2. The transmission of the elevation of the construction layer should be carried out by using the leveling method of hanging steel ruler instead of leveling ruler, and the temperature, ruler length and tensile force of the steel ruler reading should be corrected.

The number of transfer points should be determined according to the size and height of the building. Small-scale industrial buildings or multi-storey civil buildings should be transmitted upwards from 2 places, and large-scale industrial buildings or high-rise civil buildings should be transmitted upwards from 3 places.

When the elevation difference of the transmission is less than 3mm, the average value can be taken as the elevation reference of the construction layer, otherwise, it should be re-transmitted.

3. The axis projection of the construction layer should be carried out with a 2-level laser theodolite or laser lead straightener. After the control axis is projected to the construction layer, the projection axis should be verified on the plane of the structural layer according to the closed figure. After qualifying, other measurement and design work on this construction layer can be carried out, otherwise, the test should be re-tested.

4. The accuracy of the verticality measurement of the construction should be determined according to the comprehensive analysis of the height of the building, the accuracy requirements of the construction, the observation conditions of the site and the verticality measurement equipment, but should not be lower than the accuracy requirements of the vertical projection of the axis. 5. During the pouring process of large-scale equipment foundation, it should be monitored in time. When it is found that the location and elevation do not meet the construction requirements, the construction personnel should be notified immediately and dealt with in time.

Generally, it is to find the planning bureau to measure and place the coordinate points.

In the current construction project, the coordinates given by the design institute are generally to contact the planning bureau to measure 2-4 coordinate points, so that the total station or theodolite is used to connect them into two axes, and the straight line calculation formula of the two coordinate points on the design drawing is (x-x) +y-y).

First of all, you have to learn to use the total station, under normal circumstances, the design institute or Party A will send someone to help you put the coordinate points, will give you 3 points (of course, you can ask for 4), so that it can be connected into two axes, so that the house frame will come out.

Generally, the line is put out with geodetic coordinates. Pay-off with Casio calculator with program conversion.

Generally, it is to find the planning bureau to measure and place the coordinate points.

Establish a construction coordinate system and then use the conversion formula as well as the azimuth conversion. You can ask for details.