Integrated oriented vacuum well point pipe

An integrated, well point pipe technology, applied in construction, infrastructure engineering and other directions, can solve the problems of large external environmental impact of the foundation pit, slow construction speed, reduction of groundwater outside the foundation pit, etc., to achieve enhanced stability and resistance to deformation. The effect of reducing the surrounding settlement and reducing the construction cost

CN108708385APending Publication Date: 2018-10-26河南省水利第一工程局集团有限公司
0 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-10-26

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an integrated oriented vacuum well point pipe. The integrated oriented vacuum well point pipe comprises an outer layer pipe; an inner layer pipe is sleeved with the outer layerpipe; the outer layer pipe is downwards in threaded connection with a short pipe; the short pipe is downwards welded with a partition plate; the partition plate is downwards welded with a hollow cone; a plurality of water outlets are formed in the side walls of the hollow cone; the bottom end of the outer layer pipe is connected with the partition plate; a check valve is arranged on the partitionplate in the inner layer pipe; the top end of the inner layer pipe is bent, and then stretches out of the top of the side wall of the outer layer pipe; a seal ring is arranged between the outer layerpipe and the inner layer pipe at the top end of a vacuum pumping area; a plastic drainage barrel sleeves the inner layer pipe; a plurality of bulges are distributed on the plastic drainage barrel atintervals; a plurality of inner pipe water inlets are formed in the inner layer pipe; a plurality of outer pipe water inlets are formed in the outer layer pipe; a geotextile layer is mounted on the inner wall of the outer layer pipe; and a barrel-shaped metal net layer is arranged on the inner surface of the geotextile layer. A hoist is not needed in the mounting process, a drainage channel does not depend on poured coarse sand, sludge blocking can be prevented on a soft soil layer, oriented water precipitation is achieved, the influence on an environment is small, and the cost is relatively low.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of building construction, in particular to a vacuum well point pipe and a corresponding dewatering process. Background technique

[0002] In the construction of generally deep underground projects, most of the construction methods of grading or supporting excavation are adopted. When the construction depth is below the groundwater level, the foundation pit often encounters underground water gushing or quicksand invasion. Therefore, it is necessary to use Artificially lowering the groundwater table.

[0003] A large amount of groundwater extraction will cause ground subsidence around the site, deformation of buildings, and environmental degradation of water and soil resources. With the enhancement of the government's awareness of environmental protection in recent years, the awareness of protecting groundwater resources has been continuously strengthened, and a series of measures to limit pumping and discharge have be...

Examples

Embodiment Construction

[0051] Such as Figure 1 to Figure 3 As shown, the integrated directional vacuum well point tube of the present invention comprises an outer tube 1, and an inner tube 2 is sleeved inside the outer tube 1, and the outer diameter of the inner tube 2 is smaller than the inner diameter of the outer tube 1; 1 Downward screw connection has a short pipe 6 for enclosing the grit chamber, the axes of the short pipe 6, the inner pipe 2 and the outer pipe 1 are on the same line; the short pipe can be an outer silk pipe or an inner silk pipe, The bottom of the corresponding outer tube 1 is provided with an inner wire or an outer wire. The height of the short tube is 200±2mm;

[0052] The short pipe 6 is welded downward with a partition 4; the partition 4 is welded downward with a hollow cone 3, the tip of the hollow cone 3 is set downward, and the side wall of the hollow cone 3 is provided with a number of water outlets 16;

[0053] The bottom end of the inner tube 2 is connected to the...