Assembled type concrete block pressing rod beam and using method, production die and production method thereof

Abstract

The invention relates to an assembled type concrete block pressing rod beam and a using method, production die and production method thereof. The pressing rod beam comprises a single beam and a cross beam, wherein the single beam comprises two end blocks, a plurality of middle blocks and at least four pre-stress steel bars; the two end blocks and the middle blocks are connected in series into a whole through the pre-stress steel bars; the cross beam comprises an end span pressing rod beam, a middle span pressing rod beam and a node block; one end of the end span pressing rod beam is connected to the node block, and the other end of the end span pressing rod beam supports a supporting and protecting body; two ends of the middle span pressing rod beam are respectively connected with the node block; a supporting vertical column is arranged below the node block; the end span pressing rod beam comprises the end blocks, a plurality of middle blocks and at least four pre-stress steel bars for connecting the middle blocks in series; and the middle span pressing rod beam comprises a plurality of middle blocks and at least four pre-stress steel bars for connecting the middle blocks in series. The pressing rod beam is extremely low in manufacturing cost, simple in construction process and short in working period and causes no side effect on the environment.

Description

technical field [0001] The invention relates to an assembled concrete block compression bar beam assembled with prestressed steel bars, a use method, a production mold and a production method. Background technique [0002] In deep underground support projects, when the external pull is not available, the surrounding protection body needs to adopt the internal support design, which is mainly carried by the horizontal force member compression bar beam, and the longer the length, the more stable the pressure bearing requirement. However, mechanical excavation requires that the length of compression bars or beams must meet the construction requirements. Usually, it is difficult to support compression beams with criss-cross layer steel pipe tools. Most of them can only use solid cast-in-place reinforced concrete compression beams. After the operation, it has to be discarded again, resulting in a lot of labor for dismantling the supporting body, which is troublesome, takes a long ...

AI Technical Summary

Problems solved by technology

[0002] In deep underground support projects, when the external pull is not available, the surrounding protection body needs to adopt the internal support design, which is mainly carried by the horizontal force member compression bar beam, and the longer the length, the more stable the pressure bearing requirement. However, mechanical excavation requires that the length of compression bars or beams must meet the construction requirements. Usually, it is difficult to support compression beams with criss-cross layer steel pipe tools. Most of them can only use solid cast-in-place reinforced concrete compression beams. After the operation, it has to be discarded, resulting in a lot of labor to disassemble the support body, which is troublesome, takes a long time, is expensive, and has an adverse impact on the environment.

Images