Construction method for filling intercommunication ramps with foam light soil

Abstract

The invention discloses a construction method for filling an intercommunication ramp by using foam light soil. The construction method comprises the following steps: (1) preparing cement paste; 2) preparing foam; (3) preparing foam light soil; (4) preparing a pouring area site; (5) casting foam light soil in situ, using the bottommost layer as the first layer for pouring, and arranging pouring areas every 10-15 m in the longitudinal direction of the roadbed; after slope excavation is completed, performing sequential construction from the bottom layer to the upper layer in a layered mode during filling, the single-layer pouring thickness is controlled to be 60 cm, the top layer pouring thickness is controlled to be 0.3-1.0 m according to the designed elevation, and when pouring is conducted towards the upper layer, performing 90 cm construction; filling the edge covering lime soil layer by layer from bottom to top according to the ultra-width of 1 m, the compaction degree meets the design requirement, and after the edge covering lime soil is filled to the top elevation, performing slope brushing on the edge covering lime soil; performing roadbed lime soil filling after the strength of the foam light soil meets the requirement, performing filling layer by layer, the compaction degree meets the design requirement, and adjusting transverse and longitudinal slopes of a roadbed; and 6), performing maintenance, according to the method, the load of the roadbed base can be obviously reduced, post-construction settlement of the roadbed is eliminated, and the diseases such as bumping at the bridgehead are solved.

Description

technical field

[0001] The invention relates to a ramp construction method, in particular to a construction method for filling an intercommunicating ramp with foam light soil. Background technique

[0002] Expressway is an important lifeline in the national transportation network, and its construction is often inseparable from the construction of steep mountain roads and complex working conditions. At this stage, expressways in areas with steep mountain roads and complex working conditions are usually constructed by conventional earth subgrade filling methods, and generally large retaining walls are built at the foot of a low slope and constructed by conventional filling and compaction methods. However, this traditional method is prone to problems such as dangerous engineering environment, large land acquisition area required for slope grading, large filling volume and easy damage to the current hillside environment. In addition, during the construction period of the conven...

Examples

Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, Without technical substantive significance, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the technology disclosed in the present invention without affecting the effect and purpose of the present invention. within the scope of the content. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practic...

technical field

[0001] The invention relates to a ramp construction method, in particular to a construction method for filling an intercommunicating ramp with foam light soil. Background technique

[0002] Expressway is an important lifeline in the national transportation network, and its construction is often inseparable from the construction of steep mountain roads and complex working conditions. At this stage, expressways in areas with steep mountain roads and complex working conditions are usually constructed by conventional earth subgrade filling methods, and generally large retaining walls are built at the foot of a low slope and constructed by conventional filling and compaction methods. However, this traditional method is prone to problems such as dangerous engineering environment, large land acquisition area required for slope grading, large filling volume and easy damage to the current hillside environment. In addition, during the construction period of the conven...

Examples

Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, Without technical substantive significance, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the technology disclosed in the present invention without affecting the effect and purpose of the present invention. within the scope of the content. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practic...

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