Man jailed over 'nightmare' rape in Vic

A man who grabbed a woman from behind, threatened to slit her throat and repeatedly raped her during a "nightmare" two-hour ordeal will spend at least 10 years in jail.

Mark Adrian Shandley raped the woman in February 2016 in an attack prosecutor Gavin Silbert QC has described as "every woman's worst nightmare".

"I can't help but agree with that assessment," Victorian County Court judge Richard Maidment said on Monday.

The judge sentenced Shandley to 13 years and six months in prison, with a non-parole period of 10 years for the "despicable" attack.

Shandley had earlier pleaded guilty to nine charges, including abduction, rape, and making threats to inflict serious injury.

The 29-year-old woman was walking along a road in Shepparton and texting a friend on February 18, 2016 when Shandley grabbed her from behind and held a machete to her throat.

Shandley, then 44, pushed her into an adjacent orchard before dragging her into his nearby car as the woman begged him to let her go.

Shandley drove a short distance, stopped the car, and repeatedly raped the woman.

During the two-hour ordeal Shandley threatened to slit the woman's throat if she did not stop screaming, and bound her arms and legs.

"You showed her no mercy until after you had obtained your sexual gratification," Judge Maidment said.

"To say that your conduct was utterly despicable is an understatement."

Judge Maidment said Shandley "showed no semblance of humanity" to his victim.

"Snatching her off the street from behind and subjecting her to that conduct ... is offending conduct of a very high order," he said.

"You showed a callous disregard for the physical and mental consequences of your conduct towards the victim."

Shandley was also sentenced for threatening to kill his former partner, and reckless conduct endangering serious injury after he rammed his car into her vehicle.

He threatened her and used his car to attack her in Shepparton a day after the rape.

Shandley had become enraged after seeing his ex with a new boyfriend, the court heard.