What you describe seems to be use of sustained force aspect of the spell:

Sustained Force: A sustained force moves an object weighing no more than 25 pounds per caster level (maximum 375 pounds at 15th level) up to 20 feet per round. A creature can negate the effect on an object it possesses with a successful Will save or with spell resistance. This version of the spell can last 1 round per caster level, but it ends if you cease concentration. The weight can be moved vertically, horizontally, or in both directions. An object cannot be moved beyond your range. The spell ends if the object is forced beyond the range. If you cease concentration for any reason, the object falls or stops.

As you can see, it applies only to objects. Violent Thrust aspect of telekinesis says "You can hurl one object or creature" so the distinction is significant. You cannot use the Ring non-violently on creatures, sorry.

Nothing in the rules forbid using Violent Thrust on yourself. Certainly you are a creature within range. You need to fail Will save to be affected but apparently you can willingly do so. So that's a travel

toward any target within 10 feet per level

90 ft as the Ring is Cl 9. But you need a valid target on the other side of the chasm, or on the ceiling for vertical movement, for it to work. Also, you should roleplay it happening violently and it would be within DM fiat to deny it, as the intent is to use it for an attack, not transportation. Also note the 1d6 damage of violent thrust.

What would I rule at my table: Given that nothing in the rules prevents you from Violently Thrusting yourself, I'd allow for horizontal motion, with 1d6 damage or max distance if there is nothing to hit. For vertical motion, I probably wouldn't allow it. It is a violent action so does not make much sense to allow PC to grab things or land softly.

Side note on falling: Rules for falling do not include any falling time, so by RAW "as long the fall distance allows you a standard action" can never happen anyway. Pathfinder rules are mostly for 2D game, so this would require house rules / rulings. Importing 3.x FAQ may work - I do not support or oppose this solution.

What you describe seems to be use of sustained force aspect of the spell:

Sustained Force: A sustained force moves an object weighing no more than 25 pounds per caster level (maximum 375 pounds at 15th level) up to 20 feet per round. A creature can negate the effect on an object it possesses with a successful Will save or with spell resistance. This version of the spell can last 1 round per caster level, but it ends if you cease concentration. The weight can be moved vertically, horizontally, or in both directions. An object cannot be moved beyond your range. The spell ends if the object is forced beyond the range. If you cease concentration for any reason, the object falls or stops.

As you can see, it applies only to objects. Violent Thrust aspect of telekinesis says "You can hurl one object or creature" so the distinction is significant. You cannot use the Ring non-violently on creatures, sorry.

Nothing in the rules forbid using Violent Thrust on yourself. Certainly you are a creature within range. You need to fail Will save to be affected but apparently you can willingly do so. So that's a travel

toward any target within 10 feet per level

90 ft as the Ring is Cl 9. But you need a valid target on the other side of the chasm, or on the ceiling for vertical movement, for it to work. Also, you should roleplay it happening violently and it would be within DM fiat to deny it, as the intent is to use it for an attack, not transportation. Also note the 1d6 damage of violent thrust.

What would I rule at my table: Given that nothing in the rules prevents you from Violently Thrusting yourself, I'd allow for horizontal motion, with 1d6 damage or max distance if there is nothing to hit. For vertical motion, I probably wouldn't allow it. It is a violent action so does not make much sense to allow PC to grab things or land softly.

Side note on falling: Rules for falling says:

A character cannot cast a spell while falling, unless the fall is greater than 500 feet or the spell is an immediate action, such as feather fall. Casting a spell while falling requires a concentration check with a DC equal to 20 + the spell’s level. Casting teleport or a similar spell while falling does not end your momentum, it just changes your location, meaning that you still take falling damage, even if you arrive atop a solid surface.

(thanks Ifusaso)

If you take falling damage when using Ring is open to DM interpretation. I wouldn't let violent aspect of the spell prevent falling damage.

What you describe seems to be use of sustained force aspect of the spell:

Sustained Force: A sustained force moves an object weighing no more than 25 pounds per caster level (maximum 375 pounds at 15th level) up to 20 feet per round. A creature can negate the effect on an object it possesses with a successful Will save or with spell resistance. This version of the spell can last 1 round per caster level, but it ends if you cease concentration. The weight can be moved vertically, horizontally, or in both directions. An object cannot be moved beyond your range. The spell ends if the object is forced beyond the range. If you cease concentration for any reason, the object falls or stops.

As you can see, it applies only to objects. Violent Thrust aspect of telekinesis says "You can hurl one object or creature" so the distinction is significant. You cannot use the Ring non-violently on creatures, sorry.

Nothing in the rules forbid using Violent Thrust on yourself. Certainly you are a creature within range. You need to fail Will save to be affected but apparently you can willingly do so. So that's a travel

toward any target within 10 feet per level

90 ft as the Ring is Cl 9. But you need a valid target on the other side of the chasm, or on the ceiling for vertical movement, for it to work. Also, you should roleplay it happening violently and it would be within DM fiat to deny it, as the intent is to use it for an attack, not transportation. Also note the 1d6 damage of violent thrust.

What would I rule at my table: Given that nothing in the rules prevents you from Violently Thrusting yourself, I'd allow for horizontal motion, with 1d6 damage or max distance if there is nothing to hit. For vertical motion, I probably wouldn't allow it. It is a violent action so does not make much sense to allow PC to grab things or land softly.

Side note on falling: Rules for falling do not include any falling time, so by RAW "as long the fall distance allows you a standard action" can never happen anyway. Pathfinder rules are mostly for 2D game, so this would require house rules / rulings.

What you describe seems to be use of sustained force aspect of the spell:

Sustained Force: A sustained force moves an object weighing no more than 25 pounds per caster level (maximum 375 pounds at 15th level) up to 20 feet per round. A creature can negate the effect on an object it possesses with a successful Will save or with spell resistance. This version of the spell can last 1 round per caster level, but it ends if you cease concentration. The weight can be moved vertically, horizontally, or in both directions. An object cannot be moved beyond your range. The spell ends if the object is forced beyond the range. If you cease concentration for any reason, the object falls or stops.

As you can see, it applies only to objects. Violent Thrust aspect of telekinesis says "You can hurl one object or creature" so the distinction is significant. You cannot use the Ring non-violently on creatures, sorry.

Nothing in the rules forbid using Violent Thrust on yourself. Certainly you are a creature within range. You need to fail Will save to be affected but apparently you can willingly do so. So that's a travel

toward any target within 10 feet per level

90 ft as the Ring is Cl 9. But you need a valid target on the other side of the chasm, or on the ceiling for vertical movement, for it to work. Also, you should roleplay it happening violently and it would be within DM fiat to deny it, as the intent is to use it for an attack, not transportation. Also note the 1d6 damage of violent thrust.

What would I rule at my table: Given that nothing in the rules prevents you from Violently Thrusting yourself, I'd allow for horizontal motion, with 1d6 damage or max distance if there is nothing to hit. For vertical motion, I probably wouldn't allow it. It is a violent action so does not make much sense to allow PC to grab things or land softly.

Side note on falling: Rules for falling do not include any falling time, so by RAW "as long the fall distance allows you a standard action" can never happen anyway. Pathfinder rules are mostly for 2D game, so this would require house rules / rulings. Importing 3.x FAQ may work - I do not support or oppose this solution.