{"id":26779,"date":"2017-01-04T18:23:39","date_gmt":"2017-01-04T16:23:39","guid":{"rendered":"https:\/\/www.geostru.eu\/?post_type=product&p=26779"},"modified":"2026-03-10T12:35:26","modified_gmt":"2026-03-10T11:35:26","slug":"ground-investigation-testing-git","status":"publish","type":"product","link":"https:\/\/www.geostru.eu\/en\/shop\/software-en\/geology-software\/ground-investigation-testing-git\/","title":{"rendered":"Ground Investigation Testing – GIT"},"content":{"rendered":"

GROUND INVESTIGATION TESTING – Design investigations<\/strong><\/p>\n

The depth of investigation<\/strong> shall be extended to all strata that will affect the project or the construction.<\/p>\n

Recommendations for the spacing and depth of investigations<\/b><\/p>\n

(I) The following spacing of investigation points should be used as guidance:
\n– for high-rise and industrial structures, a grid pattern with points at 15 n1 to 40 m distance;
\n– for large-area structures, a grid pattern with points at not more than 60 III distance;
\n– for linear structures (roads, railways, channels, pipelines, dikes, tunnels, retaining walls), a spacing of 20 III to 200 m;
\n– for special structures (e.g. bridges), two to six investigation points per foundation;
\n– for dan1s and weirs, In to 75 In distance, along relevant sections.<\/p>\n

(2) For the investigation depth Za the following values should be used as guidance. (The reference level for Za is the lowest point of the foundation of the structure or structural element, or the
\nexcavation base.) Where more than one alternative is specified for establishing Za, the one which yields the largest value should be applied.<\/p>\n

NOTE For very large or highly complex projects, some of the investigation points generally extend to greater depths than those specified under B.3 to B.3 (13).<\/p>\n

(3) Greater investigation depths should always be selected, where unfavorable geological conditions, such as weak or compressible strata below strata of higher bearing capacity, are
\npresumed.<\/p>\n

(4) Where structures under B.3 (5) to B.3 (8) and B.3 (13) are built on competent strata, the depth of investigation can be reduced to Za 2 m, unless the geology is indistinct, in which case at least
\none borehole should be taken down to a minimum of Za = 5 m. If a bedrock formation is encountered at the proposed base of the structure, this should be taken as the reference level for Za.
\nOtherwise, Za refers to the surface of the bedrock formation.<\/p>\n

(5) For high-rise structures and civil engineering projects, the larger value of the following conditions should be applied (see Figure B.I):<\/p>\n

Za>6 m;
\nZa>3BF.<\/p>\n

where BF is the snlaller side length of the foundation.<\/p>\n

(6) For raft foundations and structures with several foundation elements whose effects in deeper strata are superimposed on each other:
\nZa>1,5bB<\/p>\n

where bB is the sn1aller side of the structure, (see Fig. B.I).<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

(7) En1bankInents and cuttings, the larger value of the following conditions should be met Figure B.2):<\/p>\n

\"\"<\/p>\n

For dmns:
\n0,8h < Za < 1,2h
\nZa> 6m<\/p>\n

where h is the embankment height.<\/p>\n

b) For cuttings:
\nZa>2,0m
\nZa>0,4h<\/p>\n

where h is the dam height or depth of cutting.<\/p>\n

 <\/p>\n

(8) Linear structures, the larger value of the following conditions should be nlet (see Figure B.3):<\/p>\n

\"\"<\/p>\n

a) For roads and airfields:<\/p>\n

Za>2 In below the proposed formation level.<\/p>\n

b) For trenches and pipelines, the
\nZa 2>2m In below the invert level;
\nZa 2>1,5bAh<\/p>\n

where bAh is the width of excavation.<\/p>\n

value of:
\nb) trench<\/p>\n

c) Where relevant, the recommendations for embankments and cuttings should be followed<\/p>\n

 <\/p>\n

(9) For sma tunnels and caverns, (see Figure B4):<\/p>\n

bAb<Za<2bAb<\/p>\n

where\u00a0 bAb is the width of excavation.<\/p>\n

The groundwater conditions described in (10) b) should also be taken into account.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

a) Where the piezometric surface and the groundwater tables are below the excavation base, the larger value of the fonowing conditions should be met:
\nZa>0,4h
\n– Z>(t + 2,0) m<\/p>\n

where
\nt is the embedded length of the support; and h is the excavation depth.<\/p>\n

b) Where the piez01netric surface and the groundwater tables are above the excavation base, the larger value of the following conditions should be met
\nZa>(1H + 2,0) m
\nZa>(t + 2,0) m<\/p>\n

 <\/p>\n

where
\nH is the height of the groundwater level above the excavation base; and t is the embedded length of the support.
\n\"\"<\/p>\n

 <\/p>\n

For water-retaining structures, Za should be specified as a function of the proposed level of impounded water, the hydrogeological conditions and the construction method.
\n(12) For cut-off walls (see Figure B.6):<\/p>\n

Za>2m below the surface of the stratum impermeable to groundwater.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

(13) For piles (see Figure B.7), the following three conditions should be met:
\nZa >1bg
\nZa >5,0 m
\nZa>3DF<\/p>\n

where\"\"
\nDF is the pile base diameter; and bg is the smaller side of the rectangle circumscribing the group of piles forming the foundation at the level of the pile base.<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Computation of the geotechnical volume according to: Lancellotta and Calavera, Induced stresses, Eurocode 7.<\/p>\n

GIT is now available as a web application on the platform https:\/\/geoapp.geostru.eu<\/a><\/b>, ensuring immediate access from any device without installation. The desktop version is no longer distributed<\/p><\/blockquote>\n","protected":false},"featured_media":24938,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[532,13,15,16,17],"product_tag":[690],"class_list":{"0":"post-26779","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-geology-software","7":"product_cat-geotechnical-software","8":"product_cat-geomechanics-software","9":"product_cat-in-situ-soil-testing-software","10":"product_cat-geophysics-software","11":"product_tag-ground-investigation-testing","12":"description-off","14":"first","15":"instock","16":"taxable","17":"shipping-taxable","18":"product-type-external"},"yoast_head":"\nGround Investigation Testing - GIT - GeoStru EU<\/title>\n<meta name=\"description\" content=\"Ground Investigation Testing\" \/>\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.geostru.eu\/en\/shop\/software-en\/geology-software\/ground-investigation-testing-git\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ground Investigation Testing - 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