tag:blogger.com,1999:blog-2662864762859977462024-02-01T21:58:23.311-08:00GEOSYNTHETICS WORLDgeosynthetics for building and construction, geotechnics, home and garden, hobby, some industrial applications.imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.comBlogger92125tag:blogger.com,1999:blog-266286476285997746.post-27998218467339357002016-08-25T01:55:00.000-07:002016-08-25T01:56:04.661-07:00EuroGeo 2016 is relocated
EuroGeo6 Congress is relocated without changing the congress dates. New destination is Ljubljana, Slovenia.
PROPOSED SESSIONS FOR EuroGeo6
Agricultural Applications
Coastal Protection
Direct and Life-Cycle Cost Savings
Drainage and Filtration
Durability
Embankments on Soft Soils
Environmental Benefits
Geosynthetics as Formwork
Hydraulic Applications
Innovations and New Developments
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-7644546633053521802012-09-11T06:25:00.000-07:002012-09-12T01:38:08.688-07:005th European Geosynthetics Congress (Eurogeo5)
Valencia will be the host the 5th
European Geosynthetics Congress organized by the Spanish Chapter of the
International Geosynthetics Society (IGS)
Professionals
and students around the world will follow for the first time by ITAFEC’s online
platform this European conference held in Spain.
From
the 16th to 19th of September, 2012, Valencia will be the host of EuroGeo5, the
5th European imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-11483132697806217532011-12-12T07:13:00.000-08:002011-12-12T07:13:13.273-08:00Shopping mall roof garden drainage system
Laying geocomposite drainage sheets at the roof garden of a shopping mall construction. Special attention should be given to to direction of overlap considereng the backfill direction.
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-67511925630550637192011-10-18T08:23:00.000-07:002011-10-18T08:23:51.158-07:00Announcement: LEISTER-New U.S. Headquarters and New Geo ToolLeister Makes Firm Commitment to the US Geo Industry Swiss Manufacturer Announces New U.S. Headquarters and New Geo Tool
CHICAGO - October 17, 2011 - Leister Process Technologies, the worldwide leader in plastic welding and hot air equipment announces the opening of its expanded U.S. headquarters outside of Chicago. The new, centrally located facility quadruples Leister's capabilities in imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com2tag:blogger.com,1999:blog-266286476285997746.post-7496740335078129352011-09-30T05:48:00.000-07:002011-09-30T05:48:41.772-07:00Gabions and geotextile videoA nice video animation to show how to install gabion baskets on geotextile fabrics.
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-65524108885434481292011-09-05T03:30:00.000-07:002011-09-05T03:30:17.050-07:00Anchorage of wickdrains
During the installation of prefabricated wick drains (Prefabricated vertical drains) for soil consolidation you need some materials under the mandrel (lance) to hold the drain in the soil when you pull the mandril back.So you have to use anchor plates or anchor rods.Both is OK depending on site conditions.
I find the plate more easy to use.
When the mandril is pushed in the soil the plate holds imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-47709346934150961402011-06-27T06:10:00.000-07:002011-06-27T06:11:42.698-07:00Design of green roofs (inverted roof)Another typical cross section of a green roof design.Vegetation
Substrate
Drainage-, filter- and protection- layer Enkadrain
Roof sealing layer
Separating fleece
Heat insulation
Vapour barrier
House top / fabric
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-40727784291893414212011-04-27T04:56:00.000-07:002011-04-27T04:56:10.778-07:00Erosion control- River banksOn the river banks prefilled erosion control mats could be used. The mats may be filled with bitumen bound stone chippings, gravel or etc,. prefilled mats
Selecting wider witdhs may be better (5 m wide) (depends on the project)
vegetation can grow through
permanent protection
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-34715921467585219592011-03-17T06:44:00.000-07:002011-03-17T06:52:25.800-07:00Some geogrid types
There are a lot of type of geogrids in the market. Depending on the production types, raw materials they may be defined in several categories. Laser welded and polyester/polypropylene bars
Punched holes in a sheet followed by drawing or stretching (HDPE or PP)
Polyster woven geogrids with a PVC coating
Added a few photos here showing some of the geogrid types.
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-5510253696837965322011-02-28T04:11:00.000-08:002011-02-28T04:11:53.278-08:00Traditional drainage layersTo compare with the geocomposite drainage products let's remember the traditional drainage layers :)
Traditional drainage layers are made of graded granular material
the granular filter prevents penetration of fines into the drain (Filtration)
the granular core transports the water in the plain of the filter (Drainage)
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-25231243616484649152011-01-14T02:41:00.000-08:002011-04-20T06:11:01.220-07:00How geogrid works
Below a video simply shows how geogrid works.
Ofcourse there are a lot of things to do for design and applications but this video simply explains the supporting power of geogrids.
Take a box and fill it with gravel.
Somebody step on gravel.
The gravel does not hold the person up.
Then reinforce the gravel with geogrid layers.
Next when you remove the box, you can see that system is imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-62822080072333278412010-11-30T04:18:00.000-08:002010-11-30T04:21:45.190-08:00Soil reinforcement:Materials and design questions
- Possible materials for soil reinforcementMost used:
STEEL
POLYMERS (PET, PP, PE-HD, AR, PVA)
- Main design questions: What are the soil-reinforcement interaction parameters ?
What is the long term design strength (TLTDS)of the reinforcement ?
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-19882304895880419892010-10-22T02:24:00.000-07:002010-10-22T02:24:32.876-07:00Standards for prefabricated vertical drains (wickdrains)ISO 12958:1999 Geotextiles and geotextile-related products -- Determination of water flow capacity in their plane
ISO 10319:1993 Geotextiles -- Wide-width tensile test
ISO 11058:1999 Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load
ISO 12956:1999 Geotextiles and imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-84221099111353820712010-08-24T04:23:00.000-07:002010-08-24T04:23:54.523-07:00Erosion control - SlopesErosion control mat on slopes:
prevent seeds washed away
reinforces root system
repair of heavily eroded areas
imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-61290522382252954182010-07-19T03:03:00.000-07:002010-07-19T03:03:05.969-07:00Why use PVD over sand drainWhy use PVD (Prefabricated vertical drain) over sand drainInstallation of PVDs typically 6,000 linear meters per day (depending on the soil and the machine used it changes from 2000 to 8000) and result in a lower project cost.
No (or less) risk of PVDs breaking during installation - sand drains can have discontinuities if mandril is withdrawn too fast.
No (or less) risk of shear failure of PVDs imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-71750597007564168062010-06-28T06:17:00.000-07:002010-06-28T06:17:59.965-07:00Extra volume in waste containmentIn the construction of waste containments there is an economic advantage of using geosynthetics products.
As seen in the first picture if you use traditional clay and gravel layers in the landfill you can have about 5000 m3 of volume.
But as seen in the second picture if geosynthetics materials are used in the waste disposal area a gain of extra volume will be about 300 m3 with an increase of imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-86554820309839376502010-05-24T05:44:00.000-07:002010-05-24T05:57:53.889-07:00Composite drainage for lost shutteringSome geocomposite drainage products may be used as lost shuttering also.
The drainage composites which have a cement milk-proof layer on one side, made of PVC layer (nonwoven coated with a PP film) could be used for lost shuttering.
Application
1 side PVC geocomposite drains can be used as lost shuttering when installed against the foundation wall of the adjacent building, a bored pile wall, a imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-56515524676702121012010-03-17T09:09:00.001-07:002011-02-08T07:30:57.158-08:00Typical roof garden sectionsBelow 2 typical roof garden sections. These are only to give an idea. Of course the designs change depending on the needs in the project.The upper with conventional design. For drainage 2 nonwoven geotextile (filter fabric) layer and gravel in between were used on top of the waterproofing layer. (mineral drainage layer) Heavy and cost more to take the gravel to the roof. Bigger load on the imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-84795283404837484462010-02-25T07:34:00.000-08:002010-02-25T07:49:52.299-08:00Advantages of using uniaxial geogrids in reinforced soil retaining wallsAdvantages of using uniaxial geogrids in reinforced soil retaining walls, can be listed as follows:Fast construction in all weather conditions No mortar, dry built Optimal utilization of landFree design support (almost all the companies supply)Aesthetics: impressive & stylish designs Versatility & flexibilityCost efficiency Durability, resistance to environmental influencesAccredited by imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-15390656533052527952010-01-25T04:30:00.000-08:002010-01-25T04:41:28.521-08:00How does erosion control mat function?Geosynthetic erosion control mats help nature to establish a natural, vegetation cover, as it : acts as an artificial root-systemholds soil particles and seedsreduces water and wind velocitiescreates a micro-climate and favours germination of seeds and growthreinforces the vegetation cover in the root-zoneimhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-26561587540406932682009-12-29T04:33:00.000-08:002009-12-29T04:46:00.547-08:00Principle installation of PVDPrinciple installation of Prefabricated Vertical drainsSpecialized rigMandrill supported inside a leader held by crane or hydraulic excavator Mandrill pushed into soil by chains/cables driven by hydraulic engines.PVD installed inside a mandrillRhombic mandrill less disturbance (Often rectangular mandrill)imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-72770720035702868082009-11-23T07:24:00.001-08:002009-11-23T07:38:10.517-08:00Layers of a landfill From bottom to top layers: Waste Leveling layer : Levels the top of the waste dump. Forms a foundation layer for the capping construction. Gas conducting layer : Ensures controlled removal of the gas rising to the surface of the dump. Impermeable seal : Stops the escape of gas and prevents the influx of (rain) water. Drainage layer : Removes excess (rain) water. Vegetation layer : Permits imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-88152721600340726732009-10-12T06:33:00.000-07:002009-10-12T06:49:43.480-07:00Reasons for drainageReduce and eliminate hydraulic pressure against structures:increase stability of geotechnical structure in case of a retaining wallreduce the weight on the structure in case of flat roofsincrease stability of cover layer in case of capping of a landfillaccelerate consolidation of soils in case of Prefabricated Vertical Drains (PVD’s)Prevent leakage through a subsoil wallcellar wallsunderground imhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-30856045732184922672009-09-17T08:04:00.000-07:002009-09-17T08:13:27.319-07:00Roof Gardens and Green roofs Two systems - Two purposesRoof gardens: To be used as a garden with rich vegetation on a thick layer of soil requires maintenanceGreen Roofs: environment-friendly roof with a thin vegetal cover not to be used as garden low maintenance vegetation (mosses,sedums, herbs) on a thin layer oflightweight substrateimhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0tag:blogger.com,1999:blog-266286476285997746.post-1127713859245459622009-08-27T02:54:00.000-07:002009-08-27T03:05:58.719-07:00Multifunctional geogrids grid embedded in nonwoven filter layersOne-step easy installation Optimal interaction with the sub-gradeHigh modulus, low strain (Enkagrid TRC)Geogrid and nonwoven geotextile togetherFunctions:Stabilization+ Filtration+ Separationimhkkihttp://www.blogger.com/profile/09602765903946281773noreply@blogger.com0