The invention discloses a safety supporting device for
civil engineering construction. The safety supporting device comprises two symmetrically-arranged stand columns, two frame plates are jointly installed between the two stand columns in a clamped mode, two inserting
drill rods are movably installed on each stand column, a locking inserting rod is installed on each stand column in a penetrating and inserting mode, each locking inserting rod is inserted into the corresponding stand column and connected with the matched frame plate in a clamped mode, a plurality of baffles are movably installed on the two frame plates jointly, a
water pumping port is fixedly installed at the top end of each baffle, a water inlet
pipe is fixedly installed at the bottom end of each baffle, and a built-in box body is fixedly installed in each baffle. The safety supporting device has the beneficial effects that a traditional
welding type structure is replaced with a clamping
assembly type structure, the convenience of the device during disassembly and
assembly is effectively improved, the baffles installed on the supporting device have the drainage function, accumulated water in a foundation pit can be drained more thoroughly, soil on the inner wall of the foundation pit is prevented from being washed and falling down, and the
safety coefficient during foundation pit excavation is improved.