Automatic compensation system for inner supporting axial force of foundation pit structural steel

Abstract

The invention discloses an automatic compensation system for inner supporting axial force of foundation pit structural steel and aims at providing an automatic compensation system which can automatically compensating for the axial force of a supporting beam in the structural steel in time. The automatic compensation system comprises an axial force pressurizing assembly and an axial force compensation device. The axial force pressurizing assembly comprises a first supporting part, a second supporting part and a limiting stop block, wherein the first supporting part and the second supporting part can be supported open mutually, and the limiting stop block is arranged between the first supporting part and the second supporting part. A stress maintaining part is arranged between the limiting stop block and the first supporting part. The axial force compensation device comprises an automatic bolt screwing device, a hydraulic jack arranged between the first supporting part and the second supporting part, and an insertion piece blanking compensation device arranged above the axial force pressurizing assembly. The insertion piece blanking compensation device comprises a case, a rotary disc rotationally arranged in the case through a horizontal shaft rod, multiple pneumatic clamping fingers arranged on the rotary disc, and an insertion piece mechanism arranged in the case. Each pneumatic clamping finger clamps a stress compensation insertion piece.

Description

technical field [0001] The invention relates to the inner support of the shaped steel of the foundation pit, in particular to an automatic compensation system for the axial force of the inner support of the shaped steel of the foundation pit. Background technique [0002] In order to ensure the safety of the underground structure and the surrounding environment of the foundation pit, it is necessary to apply support, reinforcement and other protective measures on the side wall of the foundation pit and its surroundings. The current foundation pit support system usually uses steel inner support beams as the horizontal support of the foundation pit. During the excavation of the foundation pit, it is necessary to monitor the axial force of the steel inner support beam. [0003] The current axial force monitoring is to install an axial force detection stress device (for example, an axial force gauge) on the steel inner support beam. When the steel inner support beam receives th...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a method that can automatically and timely compensate the axial force of the inner supporting beam of the shaped steel, and effectively solve the problem that the axial force of the inner supporting beam of the shaped steel cannot be compensated in time in the prior art , and the automatic compensation system for the axial force of the inner support of the foundation pit section steel that causes the problem of engineering risk

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