Land foundation treatment engineering-foundation treatment - soft foundation treatment - foundation reinforcement

Land foundation treatment works

Foundation treatment generally refers to the engineering and technical measures taken to improve the bearing capacity of the foundation (soil or rock) supporting the building or improve its deformation property or permeability property. When the natural foundation has one or several of the above five problems, foundation treatment measures shall be taken to ensure the safety and normal use of the superstructure. Through foundation treatment, one or more of the following objectives can be achieved: (1) Improve the bearing capacity of foundation soil; (2) Reduce the compressibility of foundation soil; (3) Improve the permeability of the foundation; (4) Improve the dynamic characteristics of foundation soil; (5) Improve the poor foundation characteristics of special soil.

Construction Technique

: Large diameter vibrating immersed tube gravel pile technology

Large-diameter vibrating immersed tube crushed stone pile is a deep and large-diameter dense pile body composed of crushed stone formed by sinking the steel fee...
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: Plastic drainage board technology

The unimpeded plastic drainage plate is connected by the filter membrane and the core plate through a special process. Its special structure makes it have the characteristics of good integrity, high tensile strength and large water flow.

It can also be used to separate the plate core from the filter membrane, and the filter membrane can be
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: Foundation treatment technology of mixing and rotary spraying

Deep cement soil mixing and rotary jet grouting foundation treatment technology, which forms multiple branches and variable cross-section cement soil piles through rotary jet grouting, has the advantages of high pile quality, large bearing capacity and small compression deformation. Compared with conventional mixing piles, it can save 20-35% of the cost and shorten the construction period by 30%.

This technology is especially suitable for the post construction settlement of Expressway
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: High energy dynamic compaction foundation treatment technology

Dynamic compaction / dynamic compaction replacement foundation treatment is a foundation treatment method that uses special machinery or crane to lift the rammer to a high place so that it can fall freely, to give impact and vibration energy to the foundation, and to compact the foundation soil; Or use special machinery or crane to lift the rammer to a high place, and the rammer falls down freely to form a ramming pit, and backfill the sand, stone, steel slag, etc. in the ramming pit
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: High vacuum system technology

High efficiency and energy-saving large pump system is adopted for vacuum pumping. The pump opening rate is required to reach 100%, and the vacuum degree is ensured to reach more than 85kpa. The high vacuum system technology mainly includes: power equipment: three-level control of power consumption of new vacuum pumping equipment composed of general distribution box, distribution box and centralized control room
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QIANGJIN Core Competitiveness

: FDP vacuum preloading technology

Compared with the traditional technology, it reduces the well resistance, the influence of coating effect, reduces the loss of vacuum, improves the consolidation speed and the pumping cost, reduces the post construction settlement, has better reinforcement effect, and shortens the construction period by about one month.

: Unblocked plastic drainage board technology

Mastering the drainage plate technology developed by the special process has the advantages of good integrity, high tensile strength, large water flow capacity and effectively overcoming silting.

: Foundation treatment technology of deep cement soil mixing and rotary spraying method

Compared with conventional mixing pile, it has the advantages of improving foundation bearing capacity, controlling foundation settlement, reducing foundation treatment cost, saving cost and shortening construction period.

: CGE series new high-energy dynamic compaction special machine pioneer

CGE series new high-energy dynamic compaction special machine is a pioneer in domestic technology, making the domestic dynamic compaction capacity reach 25000kN m. It also overcomes the defects of poor safety, low efficiency, high failure rate, high operation intensity, serious emission pollution, poor fuel economy and large noise.