1 / 11

Diaphragm Wall Construction

Diaphragm Wall Construction.

varsha
Download Presentation

Diaphragm Wall Construction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Diaphragm Wall Construction Long sections of the cut and cover use diaphragm walls to support the sides of the open excavation, while work on the relocation of services and the construction of the in situ horse-shoe tunnels takes place. Once cast and set, the Tunnels are completely self-supporting and are not dependent on the diaphragm walls for structural stability.

  2. The equipment used for excavation of diaphragm wall

  3. This type of wall, known in North America as "slurry trench", is a cutoff wall made of a mixture of bentonite and aggregates. A fairly wide trench (commonly 5 ft) is excavated under bentonite slurry.Excavated materials (aggregates) are placed in the trench in such a way that the backfilled aggregates form a gentle slope in the opposite direction from ongoing excavation.To ensure an effective cut-off effect, slurry trenches must be rather wide so as to compensate the possible defects due to the simple dumping procedure. Construction sequence of a slurry trench

  4. ˈˈ Rock foundation treatment for dams ˈˈ Rock cutoff curtains ˈˈ Pressure injected anchors ˈˈ Ground treatment for tunneling applications ˈˈ Void filling in mines

More Related