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Shallow-buried karst cave filing construction method and shallow-buried karst cave filing construction structure

A construction method and technology of karst caves, applied in filling, infrastructure engineering, construction, etc., can solve problems such as long project investment time, environmental protection hazards, environmental hazards, etc., achieve significant economic and environmental advantages, wide application range, The effect of simple construction technology

Active Publication Date: 2013-04-17
HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These treatment methods have the following common disadvantages: (1) The cost is high. Due to the use of concrete backfill, the cost is significantly higher than that of earth and stone backfill; when bridges or cover plates are used, the cost increase is self-evident
(2) The project is time-consuming and inefficient
Especially when bridges are used to pass through, the project investment time required is much longer than that of earth and rock backfill; if concrete backfill is used, the process of concrete transportation and pouring also takes a lot of time
(3) There are hazards to environmental protection. When concrete or bridges are used, the main raw material is concrete. Therefore, its harm to the environment is self-evident

Method used

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  • Shallow-buried karst cave filing construction method and shallow-buried karst cave filing construction structure
  • Shallow-buried karst cave filing construction method and shallow-buried karst cave filing construction structure
  • Shallow-buried karst cave filing construction method and shallow-buried karst cave filing construction structure

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Embodiment

[0031] Such as Figure 1 to Figure 9 Shown, certain shallow buried karst cave 4 deep 8m, bottom diameter 8m, top diameter 5m, when adopting shallow buried karst cave filling construction method of the present invention to carry out construction, comprise the following steps,

[0032] (1) Prefabricated grouting pipe 12, using a high-performance composite pipe, one end of the composite pipe is sealed, the other end is used as the grout inlet 121, and multiple grout outlets 122 are drilled on the pipe wall of the composite pipe (see Figure 9 ).

[0033] (2) if figure 1 As shown, first the prepared grouting pipe 12 is arranged at the bottom of the shallow cave 4, and then the earth-rock mixed filler is filled above the arranged grouting pipe 12. The earth-rock mixed filler can be obtained locally, and the particles of the earth-rock mixed filler There is no special requirement for the diameter. When filling, it is directly poured from the top of the shallow cave 4, and then art...

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Abstract

The invention discloses a shallow-buried karst cave filing construction method and a shallow-buried karst cave filing construction structure. The construction method includes steps: pre-making a grouting pipe, arranging the grouting pipe, filling soil and gravel mixed packing, grouting, reinforcing, completing shallow-buried karst cave filing and the like. The construction structure comprises the grouting pipe, a connection pipeline, a soil and gravel mixed packing layer filled in a shallow-buried karst cave and grouting equipment positioned outside the shallow-buried karst cave. The grouting pipe is arranged in the soil and gravel mixed packing layer and provided with a plurality of grout outlets on the wall, one end of the grouting pipe is provided with a grout inlet led out to the upper surface of the soil and gravel mixed packing layer, and the grouting equipment is connected with a grout inlet of the grouting pipe through the connection pipeline. The shallow-buried karst cave filing construction method and the shallow-buried karst cave filing construction structure have the advantages of simple construction process, low labor cost, material saving, low manufacturing cost, wide application range, high construction efficiency, high environment friendliness and the like.

Description

technical field [0001] The invention relates to the field of karst cave filling construction, in particular to a shallow buried karst cave filling construction method and a construction structure thereof. Background technique [0002] The existing small and medium karst cave filling technologies are mainly concrete backfilling, cover slab crossing or bridge passing. These treatment methods have the following common disadvantages: (1) The cost is high. Due to the use of concrete backfill, the cost is significantly higher than that of earth and stone backfill; when bridges or cover plates are used, the cost increase is self-evident . (2) The project is time-consuming and inefficient. Especially when bridges are used to pass through, the project investment time required is very long compared with that of earth and rock backfill; if concrete backfill is used, the process of concrete transportation and pouring also takes a lot of time. (3) There are hazards to environmental pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/18E02D15/02
Inventor 邹金锋彭立蒋正华彭建国李亮张进华傅立新刘正刚王建华
Owner HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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