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Method for subgrade filling of peat soil subgrade by sea sand

A soil foundation and sea sand technology, applied in the directions of roads, roads, buildings, etc., can solve problems such as wheel trapping, and achieve the effects of easy operation, not easy to be washed by rain, and fast construction speed.

Inactive Publication Date: 2013-06-19
CHINA MCC20 GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, to fill the subgrade with sea sand, transportation tools, such as dump trucks, must be used to transport it to the filling point on the filling site and dump it. When the filling height reaches about 1 meter, the dump truck will dump the filled sea sand It is impossible to drive on the roadbed, and its wheels will sink into the sea sand of the filled roadbed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] A kind of method adopting sea sand to carry out roadbed filling to peat soil foundation, it comprises following process:

[0028] 1) Construction stakeout

[0029] After the base compaction test is accepted, the guideline points and benchmark points are controlled according to the route measurement, and the middle line and side line piles (50cm extra wide on each side) are set out, and the height of the middle and side line piles is measured and set every 20 meters, that is, the center line , The position elevation of the sideline.

[0030] 2) Sea sand transportation

[0031] Use dump trucks to transport sea sand from the sea sand stock yard to the construction site, plan the transportation route in advance, and assign a traffic coordinator at the intersection where the line of sight is not clear to direct the vehicles to pass safely.

[0032] 3) Temporary transportation access road laying for subgrade filling

[0033] The subgrade under construction is difficult for...

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Abstract

The invention relates to a subgrade filling method, and particularly relates to a subgrade filling method by using sea sand as a filling material. The method comprises the steps of laying-out a king pile and side piles, transporting the sea sand, paving a temporary transport service road, unloading materials, removing materials for the temporary transport service road after materials are loaded and unloaded, rough leveling with a bulldozer, fine leveling with a land leveler, watering to realize saturation, performing vibration rolling, measuring height, measuring the compaction degree, and performing the next sea sand soil subgrade construction after the compaction degree is qualified. The method can perform sea sand filling rapidly and efficiently and greatly increases construction efficiency. Quality of the subgrade is good after the construction, and quality of the soil slope is good.

Description

technical field [0001] The invention relates to a roadbed filling method, in particular to a roadbed filling method using sea sand as a filling material. Background technique [0002] At present, for the construction of highways in some temperate or tropical coastal cities or island countries, the soil resources used for roadbed construction are relatively scarce, and the soil materials that meet the specifications are relatively small, so roadbed construction cannot be carried out. Island countries have relatively heavy rainfall, and there are even two rainy seasons a year, which makes the construction of soil roadbed filling very difficult. In addition, when soil is used as filling material for soft soil roadbed, uneven settlement cracks are likely to occur in the soil roadbed, especially when peat soil foundation uses soil as roadbed filler, uneven settlement cracks are more likely to occur, and it is difficult to deal with the cracks, and the cracks cannot Get rid of it...

Claims

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Application Information

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IPC IPC(8): E01C3/04
Inventor 张奇崔松明贺志平贾聪林习磊朱松
Owner CHINA MCC20 GRP CORP
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