Pit foundation supporting structure for mining

A support structure and pit foundation technology, which is applied in infrastructure engineering, excavation, construction, etc., can solve the problems that the deformation of the support structure cannot be adjusted, and achieve the possible effects of ensuring stability, increasing the gripping force, and reducing sliding
CN108149693AInactive Publication Date: 2018-06-12成都伍加玖网络科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
成都伍加玖网络科技有限公司
Publication Date
2018-06-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a pit foundation supporting structure for mining. The pit foundation supporting structure comprises a bolt, an adjusting module and a through hole; the adjusting module is arranged at one end of the upper portion of a base plate, and a supporting plate is arranged at the other end of the upper portion of the base plate; a spring cavity is formed in one end of the interior of the adjusting module, and a lead screw is arranged at the other end of the interior of the adjusting module; a spring clamping plate is arranged at the end, close to the lead screw, of the interiorof the spring cavity; and a spring is arranged on one side of the spring clamping plate, and a torsion head is arranged at the end, away from the spring cavity, of the lead screw. The pit foundation supporting structure has the beneficial effects that the pretightening force of the spring can be determined according to the geological softness degree of a foundation pit, the torsion head is operated to rotate clockwise to pressurize the spring, the pretightening force of the spring is increased, otherwise, the pretightening force of the spring is decreased, the extruding force resulting in deformation of the supporting structure through the foundation pit wall is adjusted, the deformation space is reserved for the supporting structure, the supporting structure is protected, and the situation that the supporting structure is damaged due to the geological reason and excessively-large extruding force to the following supporting plate by the foundation pit wall is avoided.
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Description

Technical field

[0001] The invention belongs to the technical field of foundation pit support, and specifically relates to a pit foundation support structure for mining. Background technique

[0002] Foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, supporting, reinforcing and protecting the side walls and surrounding environment of the foundation pit. As a structural system, foundation pit support should meet the requirements of stability and deformation, that is, the requirements of the two limit states mentioned in the general specification, namely the bearing capacity limit state and the normal service limit state. The so-called limit state of load-bearing capacity, for foundation pit support, refers to the damage of the supporting structure, toppling, sliding, or damage to the surrounding environment, resulting in large-scale instability. The general design requirements do not allo...

Claims

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