Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same

A method for implementing a fire testing system having loading within the multi-dimensional space for the tunnel structure, wherein the method specifically comprises following steps:

• Step 1, hoisting a model assembling platform (23-2) to an upper portion of a model carrier loader (23-1), and connecting the model assembling platform (23-2) with the model carrier loader (23-1) by bolts, hoisting, by a bridge crane, a tunnel model to the model assembling platform (23-2) in pieces, and completing assembling the tunnel model on the model assembling platform (23-2), wherein a hydraulic power station (12) is controlled by a console (24), and a wireless transmitting unit adapted with wireless receiving units on a first telescopic rod (7-3), an electric pushing rod (2-1) and a second telescopic rod (8-2) is arranged on the console (24);
• Step 2, transporting the model carrier loader (23-1) to an inner cavity of two reaction force frames (1) along rails, lifting, after transporting the tunnel model to a preset testing position, a plurality of hydraulic supporting cylinders (10) located outside wheels of the model carrier loader (23-1) to a lower surface of the model assembling platform (23-2) and then locking the hydraulic supporting cylinders (10);
• Step 3, separating the model carrier loader (23-1) from the model assembling platform (23-2), moving the model carrier loader (23-1) out of the test working position, lifting a plurality of hydraulic supporting cylinders (10) located inside the wheels of the model carrier loader (23-1) to a lower surface of the model assembling platform (23-2), and locking the hydraulic supporting cylinders (10);
• Step 4, emitting, by the console (24) and according to an angle requirement on loading points of the test model, a signal to control stretch and contraction of the first telescopic rod (7-3) to thus drive the rotating block (13-2) to rotate, thereby adjusting, through an angel adjusting assembly (7) on a self-adaptive loading apparatus (3), an angle of the self-adaptive loading apparatus (3);
• Step 5, emitting, by the console (24), and according to a dimension of the test model, a signal after adjusting the angle to control the stretch and contraction of the electric pushing rod (2-1), thereby moving, through a distance adjusting assembly (7), a distribution beam (6-2) along a direction of fixing rods (2-2) to adjust a distance;
• Step 6, emitting, by the console (24), a signal after adjusting the distance to control and push a rigid wedge (8-3) out through the second telescopic rod (8-2), and inserting the rigid wedge (8-3) into grooves on the fixing rods (2-2), thereby implementing, through a locking assembly (8), a locking function of loading positions;
• Step 7, controlling loading ends of a plurality of hydraulic cylinders (6-1) on the distribution beams (6-2) to extend, performing, by the distribution beams (6-2), a preloading and a formal loading on the tunnel model, flexibly attaching the distribution beams (6-2) to the tunnel model;
• and
• Step 8, driving a tower-type combustion vehicle into the tunnel model along steel rails, moving, after the tower-type combustion vehicle reaches a preset position, two furnace body side-sealing apparatuses (22) at two reaction force frames (1) along the rail, respectively, closing, after completing a fire protection and a thermal insulation, the two furnace body side-sealing apparatuses (22), inserting the two furnace body side-sealing apparatuses (22) into two end openings of the tunnel model, and applying a fire temperature field to an interior of the tunnel model to perform a fire test.