IgE 81 WELLPOINT SYSTEM

Transcription

1 EWATERING EQUIPMENT IgE 8 WEPOINT SYSTEM

2 EWATERING EQUIPMENT IgE 8 WEPOINT SYSTEM

3 IgE 8 WEPOINT SYSTEM IgE 8 dewatering system Wellpoint systems are broadly used and recognized in the construction of drainage systems for building trenches/excavations. Wellpoint systems are designed for draining fine-grained soils, which do not give water easily. Their characteristic feature is a system of densely spaced inlets with small cross-sections, connected in parallel via a suction header pipe with a pumping engine. Wellpoints are vacuum inlets/intakes. Operation in negative pressure conditions requires that the wellpoint system be maximally leaktight, and that pumping engines be able to generate high negative pressure and to receive a considerable volume of air coming from the soil through inlet filters. The IgE-8 system is a subject solution for drainage, developed by Polish scientists. ue to its engineering and operational advantages, it has a leading position among other solutions used by Polish contractors. esignation and application The IgE-8 wellpoint systems are designed to drain building trenches and excavations in low and medium permeability soils (permeability coefficient k <40m/day). The system may be used as an independent installation or a support system for other drainage inlet types in one- or two-level arrangements. One wellpoint level makes it possible to lower the ground water table up to 4 m, and two levels, up to 7 m.. epending on ground water inflow conditions, trench size and the pumping equipment at disposal, the quantity of wellpoints connected to the appropriate pumping engine varies from 5 to 50 pieces. The most commonly used systems are based on wellpoints. System options: IgE 8/32 and IgE 8/63 Wellpoint systems are available in two versions: IgE 8/32 and IgE 8/63. Both versions differ from each other above all in the wellpoints that are used. The most commonly used version, IGE 8/32, is based on flexible wellpoints, 32 mm in diameter. In the case of the IGE 8/63 option, diameter 63 wellpoints are used. This version allows for more efficient drainage. THE IAGRAM OF IgE 8 WEPOINT SYSTEM ETAI "A" ETAI "B" EGEN: - flanged pump coupling 2 - flanged distributor 3 - flexible connector 4 - suction header pipe IgE 8/ through/discharge pipe 6 - pipe bend flexible wellpoint 8 - wellpoint gasket 9 - gasket plug - outside stopper 2 - pump unit -4- IgE 8 WEPOINT SYSTEM

4 IgE 8 WEPOINT SYSTEM Characteristics As compared to conventional structures, the IgE-8 wellpoint system has the following properties: - reduced amount of work when installing and uninstalling the system (connections between wellpoint and suction header pipe and between individual header pipes are simple, quick and leaktight), - easier transport and reduced labour demand involved in transport (light materials for wellpoints and suction headers and reduced amount of components), - high wellpoint durability, which allows for their repeated use (wellpoint material is resistant to corrosion and low temperatures, and the simple design of the typical filter facilitates its cleaning), - two jetting pipe types in two lengths, added to the set, which make it easier to install wellpoints in different soil conditions and at any depth. IST OF IgE 8/32 WEPOINT SYSTEM EEMENTS For dewatering with the use of 33 mm diameter elements SUCTION HEAER PIPE n 33 40, The suction header pipe is used to connect wellpoints to the pump unit, and it is a negative pressure collecting line for all inlets/intakes. FEXIBE WEPOINT 32 THROUGH/ISCHARGE PIPE 33 Flexible wellpoint 32 is made of flexible and semi-transparent polyethylene tube, ending in a screened filter - length 0.3m, 0.6m or m. It is used to draw water from soil Through/discharge pipes may be used to remove water discharged by the pump unit, extend system sections, connect suction header pipes and system elements distant from each other. Type 33/ / FEXIBE CONNECTOR 33 The connector is used to connect the wellpoint system suction header pipe to the pump unit, or to alter the direction that the suction header and discharge pipe are lying OUTSIE STOPPER 33 Outside stopper (female end cap) is used to close suction header end.moreover, it may be used to close off the pump suction ferrule (when it is provided with ferrule or distributor) while checking its ability to generate negative pressure IgE 8 WEPOINT SYSTEM

5 IgE 8 WEPOINT SYSTEM PIPE BEN 33/90º It is used to change suction header or discharge pipe direction by JETTING HOSE It is used to connect jetting pipe 5 and the water jetting pump. Type 75/8000 5/ JETTING PIPE 33 Type 33/ / Jetting pipe is made of 33mm tube, ending on one side in an male coupling and pull and on the other side in tooth/zigzag-shaped cuts, and is used to install (set) wellpoints in soil when it is required to use wellpoint sand filling (prefilter). It is offered in two lengths (4.5 and 6.0 m) in order to facilitate wellpoint setting (jetting) at various depths. JETTING PIPE 5 Jetting pipe 5 is made of 50mm tube, ending on one side in male coupling and used to install (set) wellpoints in soil without prefilter sand filling. Type 50/ FANGE ISTRIBUTOR FANGE PUMP COUPING It has a flange on one end, and on the other side it has two inlets ended with male couplings 33. The distributor is used in those cases when drainage design provides for the usage of two suction header (system) lines. The coupling is an element used for quick connection of the pump unit to the wellpoint system suction header pipe and discharge pipe IgE 8 WEPOINT SYSTEM

6 IgE 8 WEPOINT SYSTEM WEPOINT GASKET Wellpoint gasket is made of O-ring shaped rubber. It is used to seal connection between the wellpoint and the suction header ferrule. 23,5 7,5 GASKETS Jetting hose 5 gasket. 8 2 Suction header pipe gasket RUBBER PUG It is designed to close (stop) suction header ferrules in the event that no wellpoint is used in a given location, or if it is put out of service due to emergency reasons IST OF IgE 8/63 WEPOINT SYSTEM EEMENTS SUCTION HEAER PIPE IgE 8/63 FEXIBE WEPOINT 63 THROUGH/ISCHARGE PIPE 33 The suction header pipe is used to connect wellpoints to the pump unit, and it is a negative pressure collecting line for all inlets/intakes. This version is designed for wellpoints with 63 mm diameter. It is made of flexible and semi-transparent polyethylene tube ending on one side in screened filter. It is used to draw water from soil. This type allows for more efficient drainage than wellpoints 32. n Through/discharge pipes may be used to remove water discharged by the pump unit, extend system sections, connect suction header pipes and system elements distant from each other. Type 33/ FEXIBE CONNECTOR 5 The connector is used to couple wellpoint 63 with the suction header OUTSIE STOPPERS Outside stopper (female end cap) 33 is used to close suction header end. Outside stopper 5 is used close (stop) suction header ferrules in the event that no wellpoint is used in a given location, or if it is put out of service IgE 8 WEPOINT SYSTEM

7 IgE 8 WEPOINT SYSTEM FEXIBE CONNECTOR 33 JETTING HOSE The connector is used to connect the wellpoint system suction header pipe to the pump unit, or to alter the direction that the suction header and discharge pipe are lying It is used to connect jetting pipe and the water jetting pump. Type 75/ JETTING PIPE 08 It is made of 08mm tube, ending on one side in an male coupling and pull, and is used to install and jet water into wellpoints in soil. Type 08/ PIPE BEN 33/90º It is used to change suction header or discharge pipe direction by GASKET FOR JETTING HOSE 08/ GASKETS Gasket for flexible connector 5 mm 8 2 Gasket for jetting hose 08/ FANGE ISTRIBUTOR FANGE PUMP COUPING The distributor is used in those cases when drainage design provides for the usage of two suction header (system) lines. -8- The coupling is an element used for quick connection of the pump unit to the wellpoint system suction header pipe and discharge pipe IgE 8 WEPOINT SYSTEM

8 IgE 8 WEPOINT SYSTEM The standard IGE 8/32 system contractual set for 50 running metres of drainage Element name Elements per set Suction header pipe33 mm 0 Outside stopper 33 mm 3 Flanged pump coupling 33 mm 3 Wellpoint gasket 32 mm Rubber plug Flexible connector 33 mm Flexible wellpoint 32 Flanged distributor Jetting pipe mm Jetting pipe mm Jetting pipe mm Jetting hose 5 Jetting hose o Pipe bend 33/90 Gasket 33 Gasket 5 Through/discharge pipe 33* The standard IGE 8/63 system contractual set for 50 running metres of drainage Element name Elements per set Suction header pipe IgE 8/63 33 mm Outside stopper 33 mm Outside stopper 5 mm Flanged pump coupling 33 mm Gasket for flexible connector 5 mm Gasket for jetting hose 08 mm Gasket 33 mm Flexible connector - 33 mm Flexible connector - 5 mm Flexible wellpoint 63 Jetting hose 75 / Jetting pipe 08 mm mm o Pipe bend 33/90 Flanged distributor Through/discharge pipe 33 mm* *optional elements, depending on the planned operating conditions of the system Additional notes The system elements are available to order in sets or as individual elements. When selecting elements, we may take into account existing or expected system operating conditions. It is also possible to renovate system elements such as wellpoints or suction header pipes. 33mm is the main and most commonly used diameter for the IgE system. The IgE wellpoint systems may be also based on pipes and suction headers of 89mm and 08mm diameter. Another available variant of the IgE wellpoint system is one in which certain elements (suction header pipes and bends) are made of modified HPE polyethylene. Example pump units used for dewatering with the IgE 8 wellpoint systems -9- IgE 8 WEPOINT SYSTEM

9 IgE 8 WEPOINT SYSTEM Installing wellpoints in the ground (jetting). Wellpoints are installed (set) in soil using the water jetting method with jetting pipes connected to a water jetting pump or hydrant. The IgE8 wellpoint system set contains a few types of jetting pipes IgE 8 WEPOINT SYSTEM

10 IgE 8 WEPOINT SYSTEM The photos,2,3,4 demonstrate the jetting process. The photos 5,6,7 demonstrate the method of the wellpoint installation into the ground IgE 8 WEPOINT SYSTEM

11 IgE 8 WEPOINT SYSTEM EWATERING OF AN EXCAVATION BY A WEPOINT SYSTEM IgE 8 WEPOINT SYSTEM

12 IgE 8 WEPOINT SYSTEM IgE 8 WEPOINT SYSTEM

13 R Katowice Bielsko-B. Skoczów KAUIA J. Kreta 24 Szeroka Nierodzim Wiejska Katowicka S ko c z o w sk a Cieszyn Cieszyñska USTROÑ Wis³a PPHU KAUIA Poland, Ustroñ, ul.j.kreta 24 tel./fax: tel , klaudia@wizja.net

14 przed po PPHU KAUIA Poland, Ustroñ, ul.j.kreta 24 tel./fax: tel ,