How land is made flat at scale











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For building something like a big building or a parking garage, there is a need for a large flat surface of concrete. Wondering how they make the dirt and the concrete flat. It's hard to make a tiny flat surface at the beach in sand let along thousands of square feet. Wondering what sorts of machines tools or techniques are used at a high level.










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    up vote
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    down vote

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    For building something like a big building or a parking garage, there is a need for a large flat surface of concrete. Wondering how they make the dirt and the concrete flat. It's hard to make a tiny flat surface at the beach in sand let along thousands of square feet. Wondering what sorts of machines tools or techniques are used at a high level.










    share|improve this question







    New contributor




    Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      For building something like a big building or a parking garage, there is a need for a large flat surface of concrete. Wondering how they make the dirt and the concrete flat. It's hard to make a tiny flat surface at the beach in sand let along thousands of square feet. Wondering what sorts of machines tools or techniques are used at a high level.










      share|improve this question







      New contributor




      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      For building something like a big building or a parking garage, there is a need for a large flat surface of concrete. Wondering how they make the dirt and the concrete flat. It's hard to make a tiny flat surface at the beach in sand let along thousands of square feet. Wondering what sorts of machines tools or techniques are used at a high level.







      surface-preparation






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      New contributor




      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question







      New contributor




      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




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      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 4 hours ago









      Lance Pollard

      1084




      1084




      New contributor




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      New contributor





      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Lance Pollard is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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          2 Answers
          2






          active

          oldest

          votes

















          up vote
          2
          down vote



          accepted










          Tear it up:
          dozer



          Smooth it out:
          grader



          John Deere makes similar equipment, too. See here and here



          The concrete is either poured in sections or pre-cast and delivered on-site. So the traditional techniques still work at scale.






          share|improve this answer





















          • What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
            – Lance Pollard
            1 hour ago




















          up vote
          1
          down vote













          For big constructions, there is a survey plan and a few bench marks marked and cemented by the surveyor. Then at the time of excavation there are auto rotating laser levels that cast a level moving beam which is easy to see and follow. there are reflecting mirrors and elevation readers.



          Excavation is done in stages, from rough to fine contours using different heavy machinery depending on the type and configuration of the site. Many jobs call for presence of soils engineer at intervals to test the soils and determine their properties and if they match the projects soils report.



          Concrete slabs can be leveled with vibrating, moving, or, rotating screeds or operator driven motorized finishers or manually. There are plastic stakes that mark the finish level and the have fittings for long aluminum levels.



          Structural drawing s usually call for 1/8" to 1/16" tolerance in slabs level.






          share|improve this answer





















            Your Answer





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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            2
            down vote



            accepted










            Tear it up:
            dozer



            Smooth it out:
            grader



            John Deere makes similar equipment, too. See here and here



            The concrete is either poured in sections or pre-cast and delivered on-site. So the traditional techniques still work at scale.






            share|improve this answer





















            • What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
              – Lance Pollard
              1 hour ago

















            up vote
            2
            down vote



            accepted










            Tear it up:
            dozer



            Smooth it out:
            grader



            John Deere makes similar equipment, too. See here and here



            The concrete is either poured in sections or pre-cast and delivered on-site. So the traditional techniques still work at scale.






            share|improve this answer





















            • What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
              – Lance Pollard
              1 hour ago















            up vote
            2
            down vote



            accepted







            up vote
            2
            down vote



            accepted






            Tear it up:
            dozer



            Smooth it out:
            grader



            John Deere makes similar equipment, too. See here and here



            The concrete is either poured in sections or pre-cast and delivered on-site. So the traditional techniques still work at scale.






            share|improve this answer












            Tear it up:
            dozer



            Smooth it out:
            grader



            John Deere makes similar equipment, too. See here and here



            The concrete is either poured in sections or pre-cast and delivered on-site. So the traditional techniques still work at scale.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 3 hours ago









            GlenH7

            4,23332344




            4,23332344












            • What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
              – Lance Pollard
              1 hour ago




















            • What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
              – Lance Pollard
              1 hour ago


















            What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
            – Lance Pollard
            1 hour ago






            What about the leveling part, making sure it is level. Maybe just a string at two points, and then the handheld leveler device at each end. But that doesn't account for bumps or small arcs in between. Wondering if it is just done by eyeing it.
            – Lance Pollard
            1 hour ago












            up vote
            1
            down vote













            For big constructions, there is a survey plan and a few bench marks marked and cemented by the surveyor. Then at the time of excavation there are auto rotating laser levels that cast a level moving beam which is easy to see and follow. there are reflecting mirrors and elevation readers.



            Excavation is done in stages, from rough to fine contours using different heavy machinery depending on the type and configuration of the site. Many jobs call for presence of soils engineer at intervals to test the soils and determine their properties and if they match the projects soils report.



            Concrete slabs can be leveled with vibrating, moving, or, rotating screeds or operator driven motorized finishers or manually. There are plastic stakes that mark the finish level and the have fittings for long aluminum levels.



            Structural drawing s usually call for 1/8" to 1/16" tolerance in slabs level.






            share|improve this answer

























              up vote
              1
              down vote













              For big constructions, there is a survey plan and a few bench marks marked and cemented by the surveyor. Then at the time of excavation there are auto rotating laser levels that cast a level moving beam which is easy to see and follow. there are reflecting mirrors and elevation readers.



              Excavation is done in stages, from rough to fine contours using different heavy machinery depending on the type and configuration of the site. Many jobs call for presence of soils engineer at intervals to test the soils and determine their properties and if they match the projects soils report.



              Concrete slabs can be leveled with vibrating, moving, or, rotating screeds or operator driven motorized finishers or manually. There are plastic stakes that mark the finish level and the have fittings for long aluminum levels.



              Structural drawing s usually call for 1/8" to 1/16" tolerance in slabs level.






              share|improve this answer























                up vote
                1
                down vote










                up vote
                1
                down vote









                For big constructions, there is a survey plan and a few bench marks marked and cemented by the surveyor. Then at the time of excavation there are auto rotating laser levels that cast a level moving beam which is easy to see and follow. there are reflecting mirrors and elevation readers.



                Excavation is done in stages, from rough to fine contours using different heavy machinery depending on the type and configuration of the site. Many jobs call for presence of soils engineer at intervals to test the soils and determine their properties and if they match the projects soils report.



                Concrete slabs can be leveled with vibrating, moving, or, rotating screeds or operator driven motorized finishers or manually. There are plastic stakes that mark the finish level and the have fittings for long aluminum levels.



                Structural drawing s usually call for 1/8" to 1/16" tolerance in slabs level.






                share|improve this answer












                For big constructions, there is a survey plan and a few bench marks marked and cemented by the surveyor. Then at the time of excavation there are auto rotating laser levels that cast a level moving beam which is easy to see and follow. there are reflecting mirrors and elevation readers.



                Excavation is done in stages, from rough to fine contours using different heavy machinery depending on the type and configuration of the site. Many jobs call for presence of soils engineer at intervals to test the soils and determine their properties and if they match the projects soils report.



                Concrete slabs can be leveled with vibrating, moving, or, rotating screeds or operator driven motorized finishers or manually. There are plastic stakes that mark the finish level and the have fittings for long aluminum levels.



                Structural drawing s usually call for 1/8" to 1/16" tolerance in slabs level.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 1 hour ago









                kamran

                3,3141410




                3,3141410






















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