{"id":1657,"date":"2026-01-14T14:39:06","date_gmt":"2026-01-14T06:39:06","guid":{"rendered":"https:\/\/www.apiepiling.com\/?p=1657"},"modified":"2026-04-03T14:17:52","modified_gmt":"2026-04-03T06:17:52","slug":"bridge-foundation-construction-with-hpr35-rotary-drilling-rig","status":"publish","type":"post","link":"https:\/\/www.apiepiling.com\/sk\/bridge-foundation-construction-with-hpr35-rotary-drilling-rig\/","title":{"rendered":"Bridge Foundation Construction with HPR35A Rotary Drilling Rig"},"content":{"rendered":"<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Setting New Standards in Bridge Pile Foundation Engineering<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">The HPR35A small rotary drilling rig from APIE FOUNDATION EQUIPMENT (CHINA) LIMITED has proven its capabilities in specialized foundation projects, particularly in bridge construction where precision, power, and portability are essential. This case study demonstrates how our small rotary drilling equipment successfully completed a challenging bridge foundation project in developing regions.<\/span><\/p>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">Project Challenge: River Bridge Foundation Installation<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">A municipal infrastructure project required the construction of a pedestrian bridge spanning 60 meters across a small river. The foundation work involved installing 28 concrete piles with varying diameters of 500mm, 700mm, and 900mm, reaching depths of 10-12 meters through alternating layers of clay, sand, and gravel deposits.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Key project constraints included:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: 'times new roman', times, serif;\">Limited site accessibility near the riverbank<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\">Seasonal water level variations affecting working conditions<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\">Strict environmental regulations regarding noise and vibration<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\">Budget constraints requiring cost-effective foundation solutions<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">HPR35A Small Rotary Drilling Rig Solution<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">The project team selected the H<strong>PR35A small rotary drilling rig<\/strong>\u00a0for its unique combination of power and portability:<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Key Technical Advantages:<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Optimal Drilling Specifications<\/strong>: Maximum 12m drilling depth and 380-1000mm diameter range perfectly matched project requirements<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Compact Transportation<\/strong>: 2.9m transport height without Kelly bar allowed easy access through existing road infrastructure<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Robust Power System<\/strong>: 35kNm rotary head output torque with 7-40rpm rotation speed provided versatility for different soil conditions<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Efficient Winch System<\/strong>: 45kN main winch capacity and 60m\/min lifting speed optimized operational efficiency<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">Execution Highlights<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Phase 1: Site Preparation and Mobilization<\/strong><\/span><br \/>\n<span style=\"font-family: 'times new roman', times, serif;\">Str\u00e1nka\u00a0<strong>small rotary drilling rig<\/strong>\u00a0was transported to site in standard flatbed trucks, minimizing mobilization costs. The 9,300kg operating weight and compact 4.36m length allowed easy positioning on the restricted riverbank site.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Phase 2: Drilling Operations<\/strong><\/span><br \/>\n<span style=\"font-family: 'times new roman', times, serif;\">Using the HPR35\u2019s advanced features:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Kelly Bar Configuration<\/strong>: 325\u00d76\u00d72.4mm system provided stability during deep drilling operations<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Mast Flexibility<\/strong>: Adjustable tilt angles (lateral 15\u00b0, forward 10\u00b0, backward 15\u00b0) enabled precise pile positioning<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Pressurization Control<\/strong>: 1000mm stroke with 40kN pressure force maintained drilling stability in challenging soil layers<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Auxiliary Winch Support<\/strong>: 10kN auxiliary winch with 40m\/min lifting speed facilitated material handling<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Phase 3: Quality Assurance<\/strong><\/span><br \/>\n<span style=\"font-family: 'times new roman', times, serif;\">Str\u00e1nka\u00a0<strong>small rotary drilling equipment<\/strong>\u00a0delivered consistent hole quality with minimal deviation, meeting all engineering specifications for verticality and diameter tolerance.<\/span><\/p>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">Performance Metrics<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">The HPR35A small rotary drilling rig achieved impressive results:<\/span><\/p>\n<table>\n<thead>\n<tr>\n<th><span style=\"font-family: 'times new roman', times, serif;\">Parameter<\/span><\/th>\n<th><span style=\"font-family: 'times new roman', times, serif;\">Achievement<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Total Piles Installed<\/span><\/td>\n<td><span style=\"font-family: 'times new roman', times, serif;\">28 piles completed<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Average Drilling Time<\/span><\/td>\n<td><span style=\"font-family: 'times new roman', times, serif;\">45 minutes per 10m pile<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Daily Production<\/span><\/td>\n<td><span style=\"font-family: 'times new roman', times, serif;\">6-8 piles<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Fuel Efficiency<\/span><\/td>\n<td><span style=\"font-family: 'times new roman', times, serif;\">12 liters per hour average<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Maintenance Downtime<\/span><\/td>\n<td><span style=\"font-family: 'times new roman', times, serif;\">Less than 2%<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">Customer Benefits<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">The client highlighted several key advantages of choosing the <strong>HPR35A small rotary drilling rig<\/strong>:<\/span><\/p>\n<ol>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Cost Efficiency<\/strong>: 35% lower operational costs compared to larger drilling rigs<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Environmental Compliance<\/strong>: Low noise and vibration met local environmental regulations<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>V\u0161estrannos\u0165<\/strong>: Adapted easily to varying soil conditions and pile specifications<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Reliability<\/strong>: 99.8% operational uptime throughout the project<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Support<\/strong>: Responsive technical support from APIE FOUNDATION EQUIPMENT team<\/span><\/li>\n<\/ol>\n<h3><span style=\"font-family: 'times new roman', times, serif;\">Industry Impact<\/span><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">This project demonstrated how\u00a0<strong>small rotary drilling rigs<\/strong> can effectively handle traditionally large-rig applications while offering superior mobility and cost-effectiveness. The success has led to the adoption of HPR35 units in similar infrastructure projects across the region.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Ready to Optimize Your Foundation Projects?<\/strong><\/span><br \/>\n<span style=\"font-family: 'times new roman', times, serif;\">Contact APIE FOUNDATION EQUIPMENT (CHINA) LIMITED for expert consultation on small rotary drilling solutions:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Technical Inquiries<\/strong>:\u00a0<a href=\"mailto:apie@apiepiling.com\">apie@apiepiling.com<\/a><\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Direct Communication<\/strong>: +86 189 2128 7030 (WhatsApp available)<\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Online Catalog<\/strong>: <a href=\"https:\/\/www.apiepiling.com\/\">http:\/\/www.apiefoundation.co<\/a><\/span><\/li>\n<li><span style=\"font-family: 'times new roman', times, serif;\"><strong>Product Focus<\/strong>: Construction machinery and equipment and accessories, specializing in small rotary drilling rigs<\/span><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Setting New Standards in Bridge Pile Foundation Engineering The HPR35A small rotary drilling rig from APIE FOUNDATION EQUIPMENT (CHINA) LIMITED has proven its capabilities in specialized foundation projects, particularly in bridge construction where precision, power, and portability are essential. This case study demonstrates how our small rotary drilling equipment successfully completed a challenging bridge foundation [&hellip;]<\/p>","protected":false},"author":4,"featured_media":1953,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[254],"tags":[237,244,349],"acf":[],"_links":{"self":[{"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/posts\/1657"}],"collection":[{"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/comments?post=1657"}],"version-history":[{"count":0,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/posts\/1657\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/media\/1953"}],"wp:attachment":[{"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/media?parent=1657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/categories?post=1657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.apiepiling.com\/sk\/wp-json\/wp\/v2\/tags?post=1657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}