Deep soft soil foundation vacuum tube well and air pressure splitting combined construction method and system
A soft soil foundation and construction method technology, which is applied in the field of soft soil foundation treatment and foundation treatment, can solve the problems such as the dewatering process of vacuum tube wells that have not been specifically described, and achieve the effects of improving the dewatering consolidation efficiency, accelerating movement, and saving equipment costs
Pending Publication Date: 2022-08-05
THE SECOND CONSTR OF CTCE GROUP +2
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However, this technology does not specifically describe the technological process of vacuum tube well dewatering
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[0049] In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0050] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening another element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or it may b...
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The invention discloses a deep soft soil foundation vacuum tube well combined air pressure splitting combined construction method and system, in the construction method, a vacuum pump is used for vacuumizing in a sealed tube well, so that negative pressure is formed in the tube well to accelerate underground water in a soft soil interlayer to move into the tube well, and meanwhile, the underground water in the soft soil interlayer is separated from the tube well. Gas pumped out by the vacuum pump is conveyed to a pressurizing tank, high-pressure air is injected into the soft soil between the tube wells by the pressurizing tank, air pressure splitting occurs in the soil body, a flowing channel of underground water is expanded, internal and external gas circulation and vacuum action in the tube wells are formed, the dewatering rate of the tube wells is increased, and therefore dewatering consolidation of the soft soil is promoted. The method effectively solves the problems that a traditional (vacuum) tube well precipitation method is poor in treatment effect on a soft clay layer with low permeability, low in precipitation rate and the like, can be used for treating a deep soft soil foundation (larger than 20 m), and has the beneficial effects that the construction period is shortened, the construction cost is saved, and the bearing capacity of the foundation is improved.
Description
technical field [0001] The invention relates to a foundation treatment technology, in particular to a combined construction method and system of deep soft soil foundation vacuum tube well combined with air pressure splitting, and belongs to the technical field of soft soil foundation treatment methods. Background technique [0002] Soft soil is widely distributed in coastal areas along the river in my country. In addition to high water content, high compressibility, low shear strength, and low permeability coefficient, this type of soil is usually buried deep, and the bottom stratum is hydraulically connected with the surrounding waters. The engineering geological conditions are extremely complex. . With the continuous increase of large-scale development of tidal flats and land reclamation projects, the foundation treatment of such deep soft soils has also become a difficult and hot research topic in the field of engineering. [0003] The vacuum preloading method is currentl...
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IPC IPC(8): E02D3/10
CPCE02D3/10E02D2250/0053Y02A20/00
Inventor 章定文曹振平刘松玉程中强曾彪张雨波孙乔龙周盛生袁小红宋云飞高永曹思佳
Owner THE SECOND CONSTR OF CTCE GROUP