{"id":219334,"date":"2024-10-19T14:13:50","date_gmt":"2024-10-19T14:13:50","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-20-30396852-dc-2020\/"},"modified":"2024-10-25T07:33:40","modified_gmt":"2024-10-25T07:33:40","slug":"bsi-20-30396852-dc-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-20-30396852-dc-2020\/","title":{"rendered":"BSI 20\/30396852 DC 2020"},"content":{"rendered":"<p>This part of <span class=\"std\"><span class=\"std-ref\">ISO&nbsp;22282<\/span><\/span> establishes requirements for pumping tests as part of geotechnical investigation service in accordance with <span class=\"std\"><span class=\"std-ref\">EN&nbsp;1997-1<\/span><\/span> and <span class=\"std\"><span class=\"std-ref\">EN&nbsp;1997-2<\/span><\/span>.<\/p>\n<p>General rules on the planning and execution of geohydraulic field tests are covered by <span class=\"std\"><span class=\"std-ref\">ISO 22282-1<\/span><\/span>.<\/p>\n<p>A pumping test consists in principle of:<\/p>\n<ul>\n<li>\n<p>drawing down the piezometric surface of the groundwater by pumping from a well (the test well);<\/p>\n<\/li>\n<li>\n<p>measuring the pumped discharge and the water level in the test well and piezometers, before, during and after pumping, as a function of time.<\/p>\n<\/li>\n<\/ul>\n<p>This part of <span class=\"std\"><span class=\"std-ref\">ISO&nbsp;22282<\/span><\/span> applies to pumping tests performed on aquifers whose permeability is such that pumping from a well can create a lowering of the piezometric head within hours or days depending on the ground conditions and the purpose. It covers pumping tests carried out in soils and rock.<\/p>\n<p>The tests concerned by this part of <span class=\"std\"><span class=\"std-ref\">ISO&nbsp;22282<\/span><\/span> are those intended for evaluating the hydrodynamic parameters of an aquifer and well parameters, such as:<\/p>\n<ul>\n<li>\n<p>permeability of the aquifer,<\/p>\n<\/li>\n<li>\n<p>radius of influence of pumping,<\/p>\n<\/li>\n<li>\n<p>pumping rate of a well,<\/p>\n<\/li>\n<li>\n<p>response of drawdown in an aquifer during pumping,<\/p>\n<\/li>\n<li>\n<p>skin effect,<\/p>\n<\/li>\n<li>\n<p>well storage,<\/p>\n<\/li>\n<li>\n<p>response of recovery in an aquifer after pumping.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><b>BS ENISO 22282-4. Geotechnical investigation and testing. Geohydraulic testing &#8211; Part 4. Pumping tests<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2020<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":219338,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1225,2641],"product_tag":[],"class_list":{"0":"post-219334","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-010-30","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/219334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/219338"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=219334"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=219334"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=219334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}