ANALYSIS-Lingering Gaddafi networks pose threat

* Gaddafi seeks to destabilise Tripoli

* Rebels race to shut down Gaddafi access to weapons

* West concerned to avoid Iraq-style chaos

By William Maclean

LONDON, Aug 24 (Reuters) - Resurgent violence in Tripoli shows Muammar Gaddafi's threat of a counter-revolutionary "volcano" in Libya is far from idle, with die-hard fighters, secret arms stashes and possibly tribal solidarity favouring his bid to cripple a rebel takeover.

For Gaddafi, staying alive and evading capture are the supreme immediate imperatives, for his sons are believed to lack the political clout to rally significant numbers of Libyans against rebel rule in the event of his death.

To that end, Gaddafi is likely to be counting on aides who are reputed to have built and maintained a network of tunnels under the city for use in the event of a threat to Gaddafi's rule, which has seen off several coup attempts over the decades.

His security experts will know the location of emergency arms stockpiles and may seek access to a research centre near Tripoli said by a former U.N. inspector to stock uranium and other material that might be used for a nuclear "dirty bomb".

The UK-based Exclusive Analysis risk forecasting company said that the main terrorist threat emanating from Libya in the next six months was likely to be from Gaddafi loyalists.