[et_pb_section fb_built=”1″ _builder_version=”4.9.7″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.9.7″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.7″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Titolo” _builder_version=”4.10.7″ _module_preset=”default” header_3_font=”|600||on|||||” header_3_text_align=”center” header_3_text_color=”#4c4566″ header_3_line_height=”1.6em” hover_enabled=”0″ header_3_font_size_tablet=”20px” header_3_font_size_phone=”16px” header_3_font_size_last_edited=”on|phone” header_3_line_height_tablet=”” header_3_line_height_phone=”1.5em” header_3_line_height_last_edited=”on|phone” locked=”off” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.9.7″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.7″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.10.7″ _module_preset=”default” background_color=”#f7f7f7″ custom_padding=”20px|30px|20px|30px|true|true” hover_enabled=”0″ text_font_size_tablet=”” text_font_size_phone=”14px” text_font_size_last_edited=”on|phone” text_line_height_tablet=”” text_line_height_phone=”1.7em” text_line_height_last_edited=”on|phone” locked=”off” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
CLIENT<\/strong>: Indgeo Due S.r.l, Via del Pozzo, 10 – S. Giuseppe di Comacchio (FE) [\/et_pb_text][et_pb_text admin_label=”PROJECT DESCRIPTION” _builder_version=”4.10.7″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n PROJECT DESCRIPTION<\/strong><\/p>\n This description concerns the design of a bulkhead of micropiles and passive tie-rods of provisional nature executed to support the construction of an excavation in the renovation of a residential complex in Via Locatelli, Padua. The existing building is located with its foundation at 50 cm from the bulkhead, at a depth of m. 1.0 and discharges, for a length of m. 1.0 a pressure equal to 120 kPa. In order to carry out this computational analysis taking into proper account the pre-existence of the building, the finite element calculation program Plaxis was used in version: Version 8.6; Update pack: (Build 608); Options: Full package.<\/p>\n The soil was modeled considering a hardening behavior of the same, i.e. implementing a HS model in Plaxis. In performing the calculation, the phases of construction of the bulkhead, excavation, laying of the passive tie-rod and the presence of the load behind were correctly considered, taking care to insert this load as pressure on the ground but not as displacements because these displacements are considered already stabilized (reset displacement to zero option). We also considered the lowering of the water table and calculated the safety coefficient of the bulkhead which was equal to 1.41.<\/p>\n The following are the most significant results in terms of displacements and stresses on the ground; displacements and stresses on the bulkhead.<\/p>\n The study and calculation of the configurations of the bulkhead runs through the operational and theoretical phases of calculating the excavation. Therefore, we will briefly illustrate, for each typical section, the calculation phases considered.<\/p>\n Phase 1 – operational and calculation phase<\/strong> Phase 2 – operational and calculation phase<\/strong> Phase 3 – operative and calculation phase<\/strong> Phase 4 – operative and calculation phase<\/strong> Phase 5 – operative and calculation phase<\/strong> Phase 6 – operative and calculation phase<\/strong> Phase 7 – operative and calculation phase<\/strong> [\/et_pb_text][et_pb_text admin_label=”Fase 6. Spostamenti generali” _builder_version=”4.10.7″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n <\/strong>Phase 6. [\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-spostamenti-generali.jpg” title_text=”paratia-micropali-padova-spostamenti-generali” align=”center” _builder_version=”4.9.11″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Dettagli spostamenti” _builder_version=”4.10.7″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n Displacements details<\/strong><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-dettagli-spostamenti.jpg” title_text=”paratia-micropali-padova-dettagli-spostamenti” align=”center” _builder_version=”4.9.11″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Effective stress” _builder_version=”4.9.9″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” global_colors_info=”{}”]Effective stress<\/strong> Horizontal displacements bulkhead graph<\/strong><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-spostamenti-orizzontali.jpg” title_text=”paratia-micropali-padova-grafico-spostamenti-orizzontali” align=”center” _builder_version=”4.9.11″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Grafico momenti flettenti paratia” _builder_version=”4.10.7″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” hover_enabled=”0″ locked=”off” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n Bulkhead bending moments graph<\/strong><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-momenti-flettenti.jpg” title_text=”paratia-micropali-padova-grafico-momenti-flettenti” align=”center” _builder_version=”4.9.11″ _module_preset=”default” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Spostamenti verticali a monte paratia” _builder_version=”4.10.7″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” hover_enabled=”0″ locked=”off” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n Vertical displacements upstream bulkhead<\/strong><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-spostamenti-verticali.jpg” title_text=”paratia-micropali-padova-grafico-spostamenti-verticali” align=”center” _builder_version=”4.9.11″ _module_preset=”default” locked=”off” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" DESIGN OF A BULKHEAD OF MICROPILES AND PASSIVE TIE-RODS TO SUPPORT THE REALIZATION OF AN EXCAVATION WITHIN A RESIDENTIAL RENOVATION IN PADUACLIENT: Indgeo Due S.r.l, Via del Pozzo, 10 – S. Giuseppe di Comacchio (FE)INTERVENTION LOCATION: PaduaSERVICES RENDERED: executive projectBEGINNING\/END OF WORKS: 2008CONSTRUCTION COMPANY: Eurocostruzioni S.p.a, Via Uruguay, 20 – PaduaPROJECT DESCRIPTION This description concerns […]<\/p>\n","protected":false},"author":5,"featured_media":1463,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":" [et_pb_section fb_built=\"1\" _builder_version=\"4.9.7\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_row _builder_version=\"4.9.7\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.9.7\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_text admin_label=\"Titolo\" _builder_version=\"4.9.9\" _module_preset=\"default\" header_3_font=\"|600||on|||||\" header_3_text_align=\"center\" header_3_text_color=\"#4c4566\" header_3_line_height=\"1.6em\" header_3_font_size_tablet=\"20px\" header_3_font_size_phone=\"16px\" header_3_font_size_last_edited=\"on|phone\" header_3_line_height_tablet=\"\" header_3_line_height_phone=\"1.5em\" header_3_line_height_last_edited=\"on|phone\" locked=\"off\" global_colors_info=\"{}\"]<\/p> [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\"4.9.7\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.9.7\" _module_preset=\"default\" global_colors_info=\"{}\"][et_pb_text _builder_version=\"4.9.9\" _module_preset=\"default\" background_color=\"#f7f7f7\" custom_padding=\"20px|30px|20px|30px|true|true\" text_font_size_tablet=\"\" text_font_size_phone=\"14px\" text_font_size_last_edited=\"on|phone\" text_line_height_tablet=\"\" text_line_height_phone=\"1.7em\" text_line_height_last_edited=\"on|phone\" locked=\"off\" global_colors_info=\"{}\"]<\/p> COMMITTENTE<\/strong>: Indgeo Due S.r.l, Via del Pozzo, 10 \u2013 S. Giuseppe di Comacchio (FE) [\/et_pb_text][et_pb_text admin_label=\"DESCRIZIONE PROGETTO\" _builder_version=\"4.9.9\" _module_preset=\"default\" global_colors_info=\"{}\"]<\/p> DESCRIZIONE PROGETTO<\/strong><\/p> La presente descrizione riguarda il progetto di una paratia di micropali e tiranti passivi a carattere provvisionale eseguita a sostegno della realizzazione di uno scavo nell\u2019ambito della ristrutturazione di un complesso residenziale in Via Locatelli; Padova. L\u2019edificio esistente si trova con la sua fondazione a 50 cm dalla paratia, a profondit\u00e0 di m. 1.0 e scarica, per una lunghezza di m. 1.0 una pressione pari a 120 kPa. Per eseguire tale analisi di calcolo tenendo in corretto conto la preesistenza dell\u2019edificio, si \u00e8 usato il programma di calcolo ad elementi finiti Plaxis nella versione: Version 8.6; Update pack: (Build 608); Options: Full package. Di seguito si riportano i risultati pi\u00f9 significativi in termini di spostamenti e stress del terreno; spostamenti e sollecitazioni sulla paratia.<\/p> Lo studio ed il calcolo delle configurazioni della paratia percorre le fasi operative e teoriche di calcolo dello scavo. Si passa pertanto ad illustrare brevemente, per ogni sezione tipo, le fasi di calcolo considerate.<\/p> Fase 1. - fase operativa e di calcolo<\/strong> Fase 2. - fase operativa e di calcolo<\/strong> Fase 3 - fase operativa e di calcolo<\/strong> Fase 4 - fase operativa e di calcolo<\/strong> Fase 5 - fase operativa e di calcolo<\/strong> Fase 6 - fase operativa e di calcolo<\/strong> Fase 7 - fase operativa e di calcolo<\/strong> [\/et_pb_text][et_pb_text admin_label=\"Fase 6. Spostamenti generali\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" global_colors_info=\"{}\"]<\/p> Fase 6.<\/strong> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-spostamenti-generali.jpg\" title_text=\"paratia-micropali-padova-spostamenti-generali\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text admin_label=\"Dettagli spostamenti\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" global_colors_info=\"{}\"]<\/p> Dettagli spostamenti<\/b><\/p> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-dettagli-spostamenti.jpg\" title_text=\"paratia-micropali-padova-dettagli-spostamenti\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text admin_label=\"Effective stress\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" global_colors_info=\"{}\"]<\/p> Effective stress<\/strong><\/p> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-effective-stresses.jpg\" title_text=\"paratia-micropali-padova-effective-stresses\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" custom_margin=\"||5px||false|false\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-relative-shear-stresses.jpg\" title_text=\"paratia-micropali-padova-relative-shear-stresses\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text admin_label=\"Grafico spostamenti orizzontali paratia\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" global_colors_info=\"{}\"]<\/p> Grafico spostamenti orizzontali paratia<\/strong><\/p> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-spostamenti-orizzontali.jpg\" title_text=\"paratia-micropali-padova-grafico-spostamenti-orizzontali\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text admin_label=\"Grafico momenti flettenti paratia\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" locked=\"off\" global_colors_info=\"{}\"]<\/p> Grafico momenti flettenti paratia<\/strong><\/p> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-momenti-flettenti.jpg\" title_text=\"paratia-micropali-padova-grafico-momenti-flettenti\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" locked=\"off\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text admin_label=\"Spostamenti verticali a monte paratia\" _builder_version=\"4.9.9\" _module_preset=\"default\" text_orientation=\"center\" custom_margin=\"||5px||false|false\" locked=\"off\" global_colors_info=\"{}\"]<\/p> Spostamenti verticali a monte paratia<\/strong><\/p> [\/et_pb_text][et_pb_image src=\"https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-grafico-spostamenti-verticali.jpg\" title_text=\"paratia-micropali-padova-grafico-spostamenti-verticali\" align=\"center\" _builder_version=\"4.9.11\" _module_preset=\"default\" hover_enabled=\"0\" locked=\"off\" global_colors_info=\"{}\" sticky_enabled=\"0\"][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","_et_gb_content_width":"","footnotes":""},"project_category":[11],"project_tag":[],"class_list":["post-1459","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-geotechnics-and-foundations"],"_links":{"self":[{"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project\/1459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/comments?post=1459"}],"version-history":[{"count":4,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project\/1459\/revisions"}],"predecessor-version":[{"id":1466,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project\/1459\/revisions\/1466"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/media\/1463"}],"wp:attachment":[{"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/media?parent=1459"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project_category?post=1459"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/teleios-ing.it\/en\/wp-json\/wp\/v2\/project_tag?post=1459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
INTERVENTION LOCATION<\/strong>: Padua
SERVICES RENDERED<\/strong>: executive project
BEGINNING\/END OF WORKS<\/strong>: 2008
CONSTRUCTION COMPANY<\/strong>: Eurocostruzioni S.p.a, Via Uruguay, 20 – Padua<\/p>\n
The geometric configuration of the bulkhead of micropiles is as follows:<\/p>\n\n
The substantially sandy soil allowed to find all the model parameters using the CPT tests provided and making use of a modeling analysis performed with a program designed by Teleios that takes into account the most recent bibliography on the subject.<\/p>\n
Activation of the foundation and loading of the existing structure.<\/p>\n
Activation of vertical bulkhead and reset displacements of phase 1.<\/p>\n
Excavation at q. -1.50<\/p>\n
Tie rod application<\/p>\n
Lowering of the water table to -4.0<\/p>\n
Excavation at -4.0<\/p>\n
Fi-ci reduction for safety coefficient calculation.<\/p>\n
General displacements
<\/strong><\/p>\n
\n[\/et_pb_text][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-effective-stresses.jpg” title_text=”paratia-micropali-padova-effective-stresses” align=”center” _builder_version=”4.9.11″ _module_preset=”default” custom_margin=”||5px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/teleios-ing.it\/wp-content\/uploads\/2021\/07\/paratia-micropali-padova-relative-shear-stresses.jpg” title_text=”paratia-micropali-padova-relative-shear-stresses” align=”center” _builder_version=”4.9.11″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Grafico spostamenti orizzontali paratia” _builder_version=”4.10.7″ _module_preset=”default” text_orientation=”center” custom_margin=”||5px||false|false” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\nPROGETTO DI UNA PARATIA DI MICROPALI E TIRANTI PASSIVI A SOSTEGNO DELLA REALIZZAZIONE DI UNO SCAVO NELL\u2019AMBITO DI UNA RISTRUTTURAZIONE RESIDENZIALE IN PADOVA<\/h3>
UBICAZIONE INTERVENTO<\/strong>: Padova
PRESTAZIONI SVOLTE<\/strong>: progetto esecutivo
INIZIO\/FINE LAVORI<\/strong>: 2008
IMPRESA ESECUTRICE<\/strong>: Eurocostruzioni S.p.a, Via Uruguay, 20 - Padova<\/p>
La configurazione geometrica della paratia di micropali \u00e8 la seguente:<\/p>
Il terreno \u00e8 stato modellato considerando un comportamento hardening della stesso, ovvero implementando un modello HS in Plaxis.
Il terreno sostanzialmente sabbioso ha permesso di trovare tutti i parametri del modello facendo utilizzo delle prove CPT fornite e avvalendosi di un\u2019analisi di modellazione eseguita con un programma studiato da Teleios che tiene conto della pi\u00f9 recente bibliografia in materia.
Nell\u2019eseguire il calcolo son state correttamente considerate le fasi di costruzione della paratia, di scavo, di posa in opera del tirante passivo e la presenza del carico retrostante avendo l\u2019accortezza di inserire tale carico come pressione gravante sul terreno ma non come spostamenti perch\u00e9 tali spostamenti si considerano gi\u00e0 stabilizzati (opzione reset displacement to zero). Si \u00e8 inoltre considerato l\u2019abbassamento della falda e calcolato il coefficiente di sicurezza della paratia che \u00e8 risultato pari a 1.41.<\/p>
Attivazione fondazione e carico struttura esistente.<\/p>
Attivazione paratia verticale e reset spostamenti della fase 1.<\/p>
Scavo a q. \u20131.50<\/p>
Applicazione tirante<\/p>
Abbassamento falda a -4.0<\/p>
Scavo a -4.0<\/p>
Fi-ci reduction per calcolo coefficiente di sicurezza.<\/p>
Spostamenti generali<\/strong><\/p>