Module subgrade case and special module thereof

Abstract

The invention discloses a module roadbed case which consists of a polygonal reticular case frame which is built by a module and concrete which is casted and concreted in the polygonal reticular case frame. The invention also discloses a special module used for building the case frame. Firstly, the module is used for building the polygonal reticular case frame; then the case frame is casted with the concrete; and the module roadbed case is formed after the concrete is concreted. The module roadbed base is used for the construction of road or bridge, fill construction is not required, thereby reducing the pressure on a roadbed or a bridge foundation, causing no concretion and deformation, avoiding the subsidence and the damage of road surface or bridge surface and eliminating the lateral pressure, and the module roadbed case can be used for building the roadbed and the bridge foundation with different requirement of strengths by changing the module and the strength of the casted concrete. When the special module is used for building the case frame, the case frame and the concreted concrete form a reticular structure and are nested together to improve the strength of the roadbed case.

Description

technical field [0001] The invention relates to a road load-reducing facility, in particular to a modularized load-reducing roadbed box and a special module for constructing the roadbed box. Background technique [0002] To lay roads in soft areas, it is necessary to carry out filling (high filling) operations to form high filling subgrades; when constructing overpasses, it is necessary to carry out filling (high filling) operations to approach bridges to form high filling bridge foundations. High-fill subgrades or bridge foundations have the following shortcomings and deficiencies: ① With the increasing degree of urbanization, it is becoming more and more difficult to obtain soil; ② The construction process is complicated, requiring soil transportation, filling, mechanical compaction, etc. ③The high-fill roadbed or bridge foundation will generate huge pressure on the foundation, and it will also generate lateral pressure on the retaining walls on both sides of the roadbed o...

AI Technical Summary

Problems solved by technology

High-fill subgrades or bridge foundations have the following shortcomings and deficiencies: ① With the increasing degree of urbanization, it is becoming more and more difficult to obtain soil; ② The construction process is complicated, requiring soil transportation, filling, mechanical compaction, etc. ③The high-fill roadbed or bridge foundation will generate huge pressure on the foundation, and it will also generate lateral pressure on the retaining walls on both sides of the roadbed or bridge foundation; ④Under the action of various static loads, dynamic loads and repeated motion impacts , the base body of the subgrade or bridge foundation will be gradually compacted, and then subsidence, consolidation deformation and uneven settlement will occur, resulting in excessive deformation of the road surface, cracking of the road surface, unevenness of the road surface, settlement difference between the bridge deck and the high-fill bridge foundation, etc. , affecting the service life of the road and driving safety; ⑤ When pipelines need to be laid in the roadbed or bridge foundation, the heavy high-fill roadbed or bridge foundation and various dynamic and static loads will generate huge pressure on the pipeline. Causes pipeline ruptures, and the repair and maintenance of pipelines is very difficult

[0003] Chinese patent CN2839354Y discloses a steel plate roadbed box, which has high cost and is only suitable for temporary traffic facilities, and cannot be applied to roadbed or bridge foundation construction

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