ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

GEOTECHNİC Part-ll

Updated on April 6, 2011

IN CASE, THERE IS NO UNDERGROUND WATER, CARYING POWER IS POOR BECAUSE OF LAKING :

 

With the aim of preventing the deficiency, the uses elusion of poor ground and in digged section “Free Drainage Material” shoul be suggested. In case the filling material permeable having granular attribute, will not necessary to use free drainage material.

 

FREE DRAINAGE MATERIAL

 

                        Sieve (mm)       The percentage of Passed Material

                               3” (76 mm)                                   100

                        1 1/2” (38 mm)                                70-100                                       

                           3/4” (19 mm)                                40-100

                          3/8” (9.5 mm)                                 20-70

                      No:4 (4.75 mm)                                  0-40

                      No:8 (2.38 mm)                                  0-12

                No:200 (0.074 mm)                                   0-3

 

THE CASE OF BEING GROUND HAVING THE INFLATABLE PROPERTY AT SPLITTING BASES

In case of being ground having the inflatable property at splitting base, by using the percentage of inflatable, and the inflatable pressure values, the orders of inflatable must be determined. In long tule, after opening the railway for navigation, in order not to break down the superstructure, the deformation which will form because of inflatable, must not exceed 5 cm. The drainage cautions which will allow to approximate at most 1.5 m to superstructure base level of water nap must me projected.

IN PASSING POOR GROUND, PROJECTING THE ADVANCED GROUND RESTORATION

At unsolved problems by the poor ground thickness is much, and, by forming restoration layer , shallow digging; the restoration of advanced ground alone or together with the shallow ground must be projected. Advanced ground restorations are considered for wadding, bridge approach wadding base ground, bridge based grounds, fundamentally, are necessary for accelerating the sittings, decreasing, increasing the carrying power, increasing the slope stability.

For the ground restoration that will be projected, the cutting that will be used relates to the width section, it must be the most critical cross-section, for the changed ground and load conditions must be done calculations according to different cross-sections.

The following alternative applications must be evaluated in order in ground restoration projects:

-Preloading and surcharge

-Loading in stages

-Vertical drains

-Geosentetics

-Stone colons

-base enjection

Before building the road and road structure, the loading ground previously is PRELOADING; on the building loading that will affect the ground continuosly, in addition making extra loading is SURCHARGE LOADING; in both cases, the orders and their durations of the sittings that will be formed by preloading on ground and after loading, will be showed the effect of road or road structure that will be calculated.

Loading in stages is the buiding wadding in stages in high that the ground can carry, in each stage, the ground sittings under the certain wadding height, will be completed, the wadding must be projected in order to increase the project height, after the sliding leaning will reach to wanted value.

 

The details of the measuring system of the amount of sitting must be written in report.

 

 

In case of the suggestion of loading in stages, the stability analysis or carrying power calculations for each stage, must be done, the safety number at the building stages stability analysis must be taken in static case GS³1.2 . When necessary, to determine the restoration at the ground parameters, must be suggested research study after stages.

 

 

At the vertical drain and stone colon calculations, the duration of openning the road for navigation must be take into consideration, the position of vertical drain (its location, its range, its tall etc. ) must be given and must be prepaired application threader.

 

 

In case of suggesting ground enjection and jet-grout, in order to satisfy the restoration at the required attribute, the necessary enjection type and its pressure, the flow of pump, the speed of withdrawing, the rotation speed, the type of enjection equipment, cement leaning, water/cement ratio etc. the parameters unique to enjection application, must be written in the report by providing the selection of equipment and method. For these methods, with the aim of controlling the parameters estimated in project, the trying application, the criteria belong to studies which are done for the quality control must be given in the report.

Comments

    0 of 8192 characters used
    Post Comment

    • daffodil2010 profile imageAUTHOR

      daffodil2010 

      7 years ago

      thank you stars439.

    • stars439 profile image

      stars439 

      7 years ago from Louisiana, The Magnolia and Pelican State.

      Excellent hub. God Bless You.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)