Floating mixing pile construction ship
The above water mixing pile construction ship (DCM ship) is a special engineering ship that assists the construction and installation of DCM pile. It is a highly automatic and intelligent ship that integrates cement storage, cement mixing, spiral conveying, underwater grouting and mixing in one pulp. It can stay underwater for 30. The deep cement mixing in the following places solidifies the deep seabed foundation, which plays an irreplaceable role in the reclamation of the sea.
Details >Offshore deep cement mixing pile engineering ship
Sea deep cement mixing pile engineering can ship in the coastal waters, coastal sea towage disposal, construction principle is: the ratio of cement or cement solidification materials according to the relevant added to the soft cohesive soil, at the same time to forced mixing, using chemical solidification formed in the foundation strong stable soil construction method, in order to achieve as a hydraulic structure underwater soft soil foundation.
Details >Foundation pit supporting project of Nanke Business Center
The foundation pit supporting project of Nanke Business Center is located in the north of the South Ring Road and the east of the West Ring Road in the High-tech Zone of Yancheng City, Jiangsu Province. The planned total investment is about 2 billion yuan, the total construction area is about 225,000 square meters, the foundation pit depth is 9.85m, the area is about 52,533 square meters, and the extension length is about 1171m.
Details >Offshore deep cement mixing pile construction
The essence of offshore deep cement mixing pile construction is a series of physical and chemical reactions between cement and soft soil, which result in the soft soil forming cement reinforced soil with integrity, water stability and a certain strength, so as to improve the foundation strength and increase the deformation modulus.
Details >Progress management: concrete support construction
The concrete support of foundation pit supporting engineering of Nanke Business Center project is under construction. The project is located in the north of the South Ring Road and the east of the West Ring Road in the high-tech Zone of Yancheng City, Jiangsu Province, with a total investment of about 2 billion yuan and a total construction area of about 225,000 square meters. The foundation pit construction involves a variety of technologies, such as press-poured pile, three-axis mixing pile, stiffened pile, SMW construction method inserted steel, concrete support, etc., the enclosure pile has been completed recently.
Details >Offshore deep cement mixing pile
Offshore deep cement mixing pile engineering ships can operate in coastal waters and tow and dispatch offshore waters. As an important construction method for the foundation treatment and construction of coastal ports and wharfs, breakwaters, revetments and artificial islands, DCM (deep cement mixing) technology has been applied for a long time in countries such as Europe, America, Japan and Korea.
Details >Quality control measures of vibrating immersed tube gravel pile
Vibration-immersed tube crushed stone pile method is a method that uses vibration-immersed tube to form holes, and adds hard particles to the tube, and forms crushed stone pile to treat the foundation by pulling out the tube and vibration density. Large diameter vibrating immersed tube rubble pile & NBSP; The pile diameter can reach 1200mm, and the pile length can reach more than 40m.
Details >Construction process of vibrating immersed tube gravel pile
The construction sequence of vibration-immersed tube gravel pile is as follows: clearing and leveling the site → laying out the hole position → crane entering the site → vibrator in place → vibrating soil extrusion into the hole → lifting the vibrator and pouring sand and stone into the hole → repeatedly vibrating and injecting sand and stone → piling to the hole opening → shifting to the next point. The key points of construction are as follows:
Details >Construction quality control requirements of vibrating immersed tube gravel pile
Vibration gravel pile sinking pipe is under the effect of the vibration of the vibration hammer, the designed casing down by the provisions of the depth, the casing after the grave, casing surrounding soil compaction, and put the gravel to the tube, to make the rubble in the grave, segmented vibrating close-grained, form a larger diameter of the gravel pile, and will further compaction of soil between piles, after many times cycle into a complete both gravel pile. The piles form a composite foundation with the soil between them, which increases the bearing capacity of the foundation and prevents sand liquefaction.
Details >Preparation work for construction of reinforced composite pile
Shanghai strong foundation soil strength composite pile technique by using proprietary cut pulverizer, combining with the intelligent control system, the soil cutting to pieces after injecting cement such as curing agent grout, according to a preset grouting quantity and for high speed cutting, cutting frequency mixing fully mixing, forming mud flow water, instant implants, precast pile formation strength composite pile
Details >Hong Kong airport is the biggest challenges facing the third runway construction aspect, before the project starts, sea DCM (mixing pile), land DCM (mixing pile), PVD (drain) in the sea, land gravel pile foundation treatment technology such as are for Japan, South Korea, the monopoly of international advanced technology, before and after the tender, the foreign counterparts enterprises of our country executes strict technology blockade. For this reason, the strong foundation has carried on the thorough research. After more than two years of continuous fighting day and night, countless scientific research, testing and adjustment, we have overcome the difficulties of equipment manufacturing and construction technology of PVD (drainage board) engineering ship, DCM (mixing pile) engineering ship, onshore gravel pile machine, and onshore DCM pile machine, and successfully mastered the core technology.