[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-393253-105":3,"detail-sidebar-cat-1-en-105":81,"doc-detail-393253-en":127},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","construction-schedule-31-preparation-construction-schedule-overview","Construction Schedule - 3.1 Preparation Construction - Schedule Overview","","Construction schedule section outlining preparation, clearance, existing roadbed improvement, track rehabilitation, and staged track enforcement durations. Preparation work is set for three months including planning, investigations (home, well, water sentence and groundwater), and surveying, followed by three months of clearance. Roadbed improvement targets defined extensions and calculates work duration from daily construction rates, then establishes multi-stage track rehabilitation and signaling/civil engineering facility improvements with durations linked to critical paths and non-critical path logic.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/template/","Template",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/template/presentations/","Presentations",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/template/construction-schedule-31-preparation-construction-schedule-overview/393253/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/construction-schedule-31-preparation-construction-schedule-overview/393253.png","ImageObject",442,249,{"name":42,"@type":43},"Himbo","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-23","2026-09-26",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",7,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What does 3.1 Preparation Construction include and how long is it scheduled for?","Question",{"text":63,"@type":64},"It includes planning, investigations (home, well, and water sentence/groundwater), and surveying, implemented within three months. Clearance is also scheduled for three months.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How is the duration for existing roadbed improvement work estimated?",{"text":68,"@type":64},"It is calculated using target extension and an assumed construction rate (20–30 m/day per track per party), then converted into total days and months.",{"name":70,"@type":61,"acceptedAnswer":71},"Why are some activities scheduled based on the critical path while others use an around-18-month estimate?",{"text":72,"@type":64},"Civil engineering and equipment works that do not become the critical path are scheduled around 18 months, while tasks on the critical path are scheduled for longer, such as 27 months.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},393253,1791745573,{"code":4,"msg":82,"data":83},"success",[84,88,93,98,103,108,113,118,123],{"id":85,"doc_module":22,"doc_module_name":25,"category_name":29,"show_sort_weight":86,"slug":87},11,90,"presentations",{"id":89,"doc_module":22,"doc_module_name":25,"category_name":90,"show_sort_weight":91,"slug":92},12,"Resumes",80,"resumes",{"id":94,"doc_module":22,"doc_module_name":25,"category_name":95,"show_sort_weight":96,"slug":97},14,"Invoices",70,"invoices",{"id":99,"doc_module":22,"doc_module_name":25,"category_name":100,"show_sort_weight":101,"slug":102},15,"Posters",60,"posters",{"id":104,"doc_module":22,"doc_module_name":25,"category_name":105,"show_sort_weight":106,"slug":107},16,"Social Media",50,"social-media",{"id":109,"doc_module":22,"doc_module_name":25,"category_name":110,"show_sort_weight":111,"slug":112},17,"Forms",40,"forms",{"id":114,"doc_module":22,"doc_module_name":25,"category_name":115,"show_sort_weight":116,"slug":117},18,"Letters",30,"letters",{"id":119,"doc_module":22,"doc_module_name":25,"category_name":120,"show_sort_weight":121,"slug":122},21,"Paper Templates",5,"papers-templates",{"id":124,"doc_module":22,"doc_module_name":25,"category_name":125,"show_sort_weight":4,"slug":126},158,"General","general-158",{"code":4,"msg":82,"data":128},{"doc_id":79,"user_id":129,"nickname":42,"user_avatar":130,"doc_module":22,"category_id":85,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":136,"language":137,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":138,"faqs":139,"seo_title":140,"seo_description":12,"update_tm":141,"read_time":142},687197100911,"https://ap-avatar.wpscdn.com/avatar/a000239b6f1da00475?x-image-process=image/resize,m_fixed,w_180,h_180&k=1785132997149421697","3. Construction Schedule  \n3.1. Preparation Construction ・・・ Preparation work: 3 months、 Clearance: 3 months  \n(1) Preparation Construction ・・・ 3months  \nThe following items including study items may be considered as preliminary works, and all items above should be implemented within three months.  \n1) Planning  \n2) Investigation  \n①Home investigation  \n②Well investigation  \n③Water sentence and groundwater investigation  \n3) Surveying  \n①Basic surveying (temporary BM、 reference point setting)  \n②Construction surveying  \n(2) Clearance 3 months  \n3.2. Existing roadbed Improvement work ・・・ 8 months  \nImprovement of existing roadbeds is carried out within sections that are severely damaged due to mud pumping.  \n(1) Target Extension  \n①Section A (between Lahat and Muara Enim) L=8,787m.  \n②Section C (between Prabumulih and Kertapati) L=19,324m.  \n③Total extension L=28,111m=28 . 1km. (Target Volume V=78,711m3)  \n(2) Term of Works  \nConstruction rate is set to 20-30m/day/track per one party (10 manpower), i.e., 40 days per km. N=28.1km×40days per km=1124 days, 1124 days per 30 days = 37.5 months.  \nWhen it is said that I spend 5 groups, 37.5 months per 5 groups ≒ 7.5 months.  \n 8.0 months.  \n3.3. Track Rehabilitation Work  \n(1) Track Rehabilitation Work (Section A and Section B)・・・ 21 months  \nReplacement of track material, replenishment of ballast, and the like within sections that are severely damaged.  \n1) Target Extension  \n①Section A (between Lahat and Muara Enim) L=38 .07km.  \n②Section B (between Muara Enim and Prabumulih) L=70 .58km.  \n③Total extension L=108 .65km=108,650m.  \n2) Term of Works  \nLength to be actually improved may be considered to be about one third of a target length, but the schedule will be calculated based on the whole length due to the necessity of inspection over the whole length.  \nConstruction rate is set to 30 m / day / track per one party (10 manpower), i.e., 30 days per km. N=108.65km×30 days per km=3260 days.  \n3260 days per 30 days=108.7 months.  \nWhen it is said that I spend five groups, 108.7 months per 5 groups ≒21.7 months.  \n 21 months are required.  \nThe same period will also be ensured within a critical path in the second phase, including possible repair.  \n(2) The 1st Stage Enforcement:R54 track exchange work (C section)・・・ 27 months  \nSleeper replacement work, which is included in track replacement works from R42 to R54, is carried out in advance.  \n1) Target Extension  \n・ Section C (between Prabumulih X6 and Kertapati) L=80.6km.  \n2) Term of Works  \nAssuming that a train interval is 1.5 hours and 5 works per day are carried out, construction rate  \nis set to 10-15 m/day/track per one party (10 manpower), i.e., 80 days per km. Allocating one group per 10 km results in allocating eight groups as a whole. Therefore, the work days,N=80.6km×80days per km=6448days，  \n6448 days per 30 days=214.9 months, 214.9 months per 8 groups=26.9 months  \n 27 months are required.  \n(3) The 2nd Stage Enforcement:R54 track exchange work(C section)・・・ 21 months  \nRail exchange work, which is included in track replacement works from R42 to R54, is carried out.  \n1) Target Extension  \n・ Section C (between Prabumulih X6 and Kertapati) L=80.6km.  \n2) Term of Works  \nSince a critical path in the second phase consists of bridge work and track laying work in  \nconstruction works for double tracking (1) (B section), the schedule is set to 21 months of the period.  \n3.4. Improvement Work of Civil Engineering Facilities  \nThe 1st stage 27 months, the 2nd stage 18 months, the 3rd stage 18 months.  \n(1) Improvement Work of Station Facilities  \nThe 1st stage 27 months, the 2nd stage 18 months, the 3rd stage 18 months.  \n1) The 1st Stage  \n( 400m, 4 places, Total extension L=58+175+263+58=554m )  \nThere is few it for the work load, but the schedule is set during critical path 27 months because it is dotted.  \n2) The 2nd stage  \n(700m, 6 places, Total extension L=207+239+300×4=1646m)  \nBecause it does not become the critical pa","cbCaitSenpzJ10gH","https://ap.wps.com/l/cbCaitSenpzJ10gH","pdf",19817708,360,"English","# 3. Construction Schedule\n## 3.1. Preparation Construction\n## 3.2. Existing roadbed Improvement work\n## 3.3. Track Rehabilitation Work\n## 3.4. Improvement Work of Civil Engineering Facilities\n## 3.5. Branch Line Construction between Merapi and Coal Storage Yard\n## 3.6. Double Tracking","[{\"question\":\"What does 3.1 Preparation Construction include and how long is it scheduled for?\",\"answer\":\"It includes planning, investigations (home, well, and water sentence/groundwater), and surveying, implemented within three months. Clearance is also scheduled for three months.\"},{\"question\":\"How is the duration for existing roadbed improvement work estimated?\",\"answer\":\"It is calculated using target extension and an assumed construction rate (20–30 m/day per track per party), then converted into total days and months.\"},{\"question\":\"Why are some activities scheduled based on the critical path while others use an around-18-month estimate?\",\"answer\":\"Civil engineering and equipment works that do not become the critical path are scheduled around 18 months, while tasks on the critical path are scheduled for longer, such as 27 months.\"}]","Construction Schedule - 3.1 Preparation Construction - Schedule Overview | PDF",1790381619,126]