RE: Big Den's Jet6 Dec 2024 14:09
He's left this behind for someone else to handle :
https://lesechos-congobrazza.com/economie/10698-congo-la-centrale-hydroelectrique-d-imboulou-sur-le-point-de-s-ecrouler-quel-gachis
Congo: The Imboulou hydroelectric power station on the verge of collapse, what a waste
The technical report of the director of the China Machinery Engineering Corporation Congo (CEMEC) to the general manager of E2C on December 4, 2024, on the critical degradations at the Imboulou hydroelectric power plant, gives chills and vertigo.
"We observed a localized collapse of the concrete floor in front of the plant..not an isolated incident.... similar problems have been identified near the switching station, on the downstream section of the tailrace, and at several other strategic locations. This degradation seems to be mainly caused by water infiltration from the reservoir. It is important to specify that for earthen dams such as the one in Imboulou, this type of problem is actually one of the most frequently encountered disorders and does not, in itself, present any major complexity to be solved," according to the report by the company CEMEC Congo.....
As part of our initial technical assistance contract, we initially assigned a civil engineer to the site, responsible for the day-to-day monitoring of the dam's buildings and structures. His role was to prevent, detect and quickly resolve potential problems. During this period of continuous supervision, no significant incidents were recorded. Unfortunately, FOR BUDGETARY REASONS, you have decided to abolish this civil engineer position in the new contract, leaving your company fully responsible for the technical work. It is clear that these responsibilities have not been satisfactorily assumed, which is particularly worrying," says the report signed by the CEO of CEMEC Congo, Zhang Pingheng.
"Following your request for informal assistance at the end of October, we proactively dispatched a foundation treatment expert from China. On November 10, a thorough inspection was carried out on site. The preliminary diagnosis reveals that simple soil restoration or slope protection, although relatively simple, would not be a sustainable solution," the same source points out.
Urgent recommendations
"It is imperative to carry out a complete study involving drilling and the use of professional equipment to detect non-visible leaks... we have gathered all relevant information: original data, technical drawings, construction documents. Our experts and specialized institutions were consulted to define a plan for investigation and strengthening of structures. We wish to reiterate strongly that a simple repair of the damaged soil will not solve the fundamental problem. There is a real risk of such incidents being repeated, particularly with respect to the foundations of the transmission towers and substation on the shoreline. ...
etc, etc.
Country risk premium, anyone?
GLA