Introduction Construction Surveying I Made Brunner

Topics Discussion on Syllabus, class ground rules, groups assignment Introductions Work of the construction surveyor (chapter 19 Surveying (Jack McCormac) Video

Syllabus

Project Constructions Residential subdivisions Site development Highway Drainage Storm and sanitary sewer Bridges Pipelines Canals Airport Water and sewage treatment plants Dam Mining dam project road project

Residential subdivisions (pemukiman) dan site development Survey diperlukan dalam penentuan batas areal proyek sehingga tidak menabrak areal lain dan juga diperlukan dalam penentuan posisi tiang beton. Highway Survey topografi (kontur) digunakan engineer untuk desain alignment jalan sehingga kelandaian misalnya tidak lebih dari 6%. Pada kondisi tikungan (akibat adanya fitur eksiting: sungai, gunung, hutan, dsb) sehingga masih sesuai dengan kriteria desain (% tikungan, panjang jalan lurus maksimal, dsb). Jembatan Survey koordinat untuk menentukan posisi tiang penyangga jembatan sehingga tidak terputus. Drainase, saluran air limbah, perpipaan, kanal Survey topografi menentukan jalur perpipaan yang paling sedikit membutuhkan cut and fill. Bandara Survey diperlukan untuk menentukan jalur sesuai arah mata angin (menurut pengukuran wind rose). Water and STP Survey diperlukan untuk menetukan batas-batas setiap untuk bak pengolahan dan keperluan cut and fill. Mining Survey diperlukan untuk menentukan arah pembukaan terowongan yang akan dijadikan landasan pengeboran lubang ledak.

Surveying in Construction Project Pre- Design Prepare : topographic map, boundary survey, plan metric site features, Establish the positions of the existing condition Design By architecture, civil engineer Final Plan Transfer of the dimensions of drawing to the drawing to the ground  correct position using stakes As-built Determine the position of finished structures (quality control check)

Surveying in Construction Project 1. A property or boundary survey to establish the location and dimension of the property

Surveying in Construction Project (2) 2. A site survey to determine the existing condition such as: contour, man- made and natural feature, stream, sewer, power lines, roads, and nearby structures

Surveying in Construction Project (3) 3. The construction surveys, which determine the position and elevation of the features of the construction work Pacing of grade stakes, alignment stakes, and other control point

Grades Stakes

Grades Stakes (2) Grades Stakes Stakes that driven into the ground until its top is located at the elevation desired for the finished job or until the elevation of the top has a definite relation to the desired elevation. For sewer, street pavements, railroad, building, and so on.

Surveying in Construction Project (4) 4. “As-built” survey that determine the positions of the finished structured. To provide the position and dimension of project feature To show all changing made during construction Before construction After construction

Why surveying is essential Economical job Ea. wrong position of one reinforced concrete footing causes additional repair cost Prevent serious mistakes Ea. wrong grade position of a long sewer line Occurred lawsuits when a building being located wholly/partly on other people land Reference datum for contractor To locate the planned features in their desired position on the ground by placing construction stakes

Wrong position in determine existing condition Things got in the way?

Wrong in determine the position of the features of the construction work Even harder is to make the ends meet...

Wrong in determine the position and elevation of the features of the construction work (2)

Contractor and Surveyor Surveyor for property survey should be furnished by owner. So that the contractor will not personally be taking the responsibility of the locating the structure The payment for the entire building project may be placed in jeopardy. Owner Contractor + registered surveyor (furnished by owner) Construction Project

Video Road Survey Crews What Is A Land Surveyor? Surveying - A Life Without Limits

Pipeline Construction Connecting pipeline

Bridge Construction

Any questions?