{"id":1604,"date":"2025-05-04T04:04:48","date_gmt":"2025-05-03T21:04:48","guid":{"rendered":"https:\/\/www.tneutron.net\/sipil\/?p=1604"},"modified":"2025-04-30T13:15:15","modified_gmt":"2025-04-30T06:15:15","slug":"pengukuran-dengan-garpu-pohon","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/sipil\/pengukuran-dengan-garpu-pohon\/","title":{"rendered":"Pengukuran Dengan Garpu Pohon"},"content":{"rendered":"<p><strong>a) Bentuk fisik garpu pohon<\/strong><br \/>\nBentuk fisik garpu pohon berupa mistar yang bercagak dan mempunyai skala (satuan ukur). Skala garpu pohon pada awalnya berupa selang diameter, kini telah diubah ke dalam satuan ukur. Satuan ukur yang digunakan adalah cm dengan satuan ukur terkecil dalam mm.<\/p>\n<p><strong>b) Dasar Kerja<br \/>\n<\/strong>Perhatikan Gambar 38 di bawah ini.<br \/>\n<a href=\"https:\/\/www.tneutron.net\/sipil\/wp-content\/uploads\/sites\/8\/2016\/08\/image-33.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/sipil\/wp-content\/uploads\/sites\/8\/2016\/08\/image_thumb-33.png\" alt=\"image\" width=\"365\" height=\"204\" border=\"0\" \/><\/a><br \/>\nGambar 38. Cara penggunaan garpu pohon<\/p>\n<p>Cara penggunaan garpu pohon adalah :<br \/>\n(1) Apitkan kedua lengan pada batang dan cari\/tentukan bagian lingkar batang yang terkecil (d1); sebagai pengukuran diameter yang pertama.<br \/>\n(2) Upayakan kedua lengan sama tinggi dari permukaan tanah (setinggi dada = 130 cm).<br \/>\n(3) Pengukuran diameter yang kedua (d2), tegak lurus pengukuran diameter yang pertama atau diameter terpanjang.<br \/>\n(4) Diameter batang pohon adalah rataan keduanya, yaitu d = 1\/2 x (d1-d2)<\/p>\n<p><strong>c) Kesalahan ukur keliling batang pohon<\/strong><br \/>\nKesalahan ukur keliling batang pohon pada saat menggunakan garpu pohon adalah (Gambar 39) :<br \/>\n<a href=\"https:\/\/www.tneutron.net\/sipil\/wp-content\/uploads\/sites\/8\/2016\/08\/image-35.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/sipil\/wp-content\/uploads\/sites\/8\/2016\/08\/image_thumb-35.png\" alt=\"image\" width=\"246\" height=\"292\" border=\"0\" \/><\/a><br \/>\nGambar 39. Kesalahan ukur dengan garpu pohon<\/p>\n<p>AC = kedudukan lengan yang benar, sedangkan<br \/>\nAC1 = kedudukan lengan yang salah<\/p>\n<p>Besar kesalahan yang terjadi sebesar :<br \/>\nEd = AC1 \u2013 AC<\/p>\n","protected":false},"excerpt":{"rendered":"<p>a) Bentuk fisik garpu pohon Bentuk fisik garpu pohon berupa mistar yang bercagak dan mempunyai skala (satuan ukur). Skala garpu<\/p>\n","protected":false},"author":1,"featured_media":1602,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[2103],"tags":[2215,2172,2177,2180,2176,2173,2178,2174,2179,2175,2181,2214,2213],"class_list":["post-1604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pengukuran-pohon","tag-alat-ukur-garpu-pohon","tag-diameter-pohon","tag-diameter-pohon-adalah","tag-diameter-pohon-flamboyan","tag-diameter-pohon-jati","tag-diameter-pohon-kelapa","tag-diameter-pohon-palem","tag-diameter-pohon-pinus","tag-diameter-pohon-sengon","tag-diameter-pohon-trembesi","tag-diameter-pohon-yang-boleh-ditebang","tag-fungsi-garpu-pohon","tag-garpu-pohon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pengukuran Dengan Garpu Pohon - TN Sipil<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/sipil\/pengukuran-dengan-garpu-pohon\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Pengukuran Dengan Garpu Pohon - TN Sipil\" \/>\n<meta name=\"twitter:description\" content=\"a) Bentuk fisik garpu pohon Bentuk fisik garpu pohon berupa mistar yang bercagak dan mempunyai skala (satuan ukur). 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