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 to improve its deformation property or permeability property.Through foundation treatment, to achieve one or more of the following purposes:(1) To improve the bearing capacity of foundation soil; (2) Reduce the compressibility of foundation soil; (3) To improve the permeability characteristics of the foundation; (4) Improve the dynamic characteristics of foundation soil; (5) improve the poor foundation characteristics of special soil.
The large-diameter vibrating immersed gravel pile uses a high-power vibrating hammer as the driving force to sink the steel pipe into the design depth, fill the gravel through the hopper and silo, and then vibrate and pull out the material pipe. Deep and large diameter, compact pile body composed of crushed stone. Compared with traditional craft gravel piles, Shanghai Strong has mature construction technology and experience. There are dozens of gravel pile construction equipment, which have been successfully used in many large-scale foundation treatment projects at home and abroad.
The unimpeded plastic drainage plate is to integrate the filter membrane and the core plate through a special process. This special structure makes it have the characteristics of good integrity, high tensile strength and large water flow. According to the particle size distribution of the clay particles in the sludge, the pore size of the filter membrane can be adjusted flexibly, which can effectively overcome the clogging phenomenon caused by the accumulation of clay particles around the filter membrane of the drainage plate, and achieve the ideal smooth effect.
The deep cement-soil mixing rotary jetting method foundation treatment technology, the cement-soil piles with multiple disks and variable cross-sections formed by rotary jetting have high pile quality, large bearing capacity, and small compression deformation, which saves 20~35% of the cost compared to conventional mixing piles. %, shorten the construction period by 30% and other advantages. This technology is especially suitable for post-construction settlement of expressways…
Dynamic compaction replacement foundation treatment is to use special machinery or cranes to lift the rammer to a high place to make it fall freely, give the foundation impact and vibration energy, and compact the foundation soil; or use special machinery or cranes to lift the rammer to the ground. When reaching a high place, the rammer falls freely to form a ramming pit, and ramming the backfilled sand, gravel, steel slag and other hard aggregates in the pit to form...
Using gas-liquid separation technology, a high vacuum pump and 12 gas-liquid separation tanks are arranged in a 120,000-square-meter site, which can quickly form a high vacuum. Compared with the traditional arrangement of a jet pump every 800~1000 square meters to form a vacuum, it has the following advantages: it can quickly form a high vacuum of 90KPa; the number of vacuuming equipment is small, energy saving and emission reduction; the equipment management is convenient, which can be truly realized 100% operating rate to ensure vacuum degree.
Compared with the traditional technology, it reduces well resistance, smear effect, reduces vacuum loss, improves consolidation speed and pumping cost, reduces post-construction settlement, improves reinforcement effect, and shortens construction period by about one month.
Master the drainage board technology developed by special process, which has the advantages of good integrity, high tensile strength, large water flow, and effectively overcome siltation.
Compared with the conventional mixing pile, it has the advantages of improving the bearing capacity of the foundation, controlling the settlement of the foundation, reducing the cost of foundation treatment, saving the cost, and shortening the construction period.
CGE series new high-energy-level dynamic compaction machine, the domestic technology pioneer, makes the domestic dynamic compaction capacity reach 25000kN.m, and overcomes the existing problems of poor safety, low efficiency, high failure rate, high operating intensity, serious emission pollution, and poor fuel economy. , noise and other defects.