Filter pipe tread-in vacuum drainage super-soft soil reinforcing technical method

A technology of vacuum drainage and ultra-soft soil, which is applied in the fields of soil protection, construction, and infrastructure engineering. It can solve problems such as long reinforcement period, shortage of sand and gravel materials, and unsatisfactory treatment effect, and achieve the effect of shortening the reinforcement construction period.

Active Publication Date: 2012-07-25
TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves many problems such as shortage of sand and gravel materials, unsatisfactory treatment effect and long reinforcement period in the vacuum preloading foundation treatment of new dredging fill

Method used

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  • Filter pipe tread-in vacuum drainage super-soft soil reinforcing technical method
  • Filter pipe tread-in vacuum drainage super-soft soil reinforcing technical method
  • Filter pipe tread-in vacuum drainage super-soft soil reinforcing technical method

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Embodiment Construction

[0019] Such as figure 1 First cut a certain length and a certain number of drainage boards according to the reinforcement depth of the dredged fill soil, the reinforcement area, and the spacing of the drainage boards, and tie the drainage boards to the filter pipe (see figure 2 , 3 , 4); Utilize the manual inserting device to insert the plastic drainage board into a predetermined depth, and press the filter tube horizontally into the mud to a certain depth while the drainage board is inserted; the filter tube is connected with the vacuum device through the mud outlet device; A new type of ultra-soft soil reinforcement technology using surface silt as a sealing layer and filter pipes as drainage channels. The vacuum negative pressure is directly transmitted to the foundation soil through the filter pipes and drainage boards to complete the foundation reinforcement.

[0020] The distance between drainage boards is 40-60cm, the reinforcement time is 20-50 days, the degree of co...

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Abstract

The invention relates to a filter pipe tread-in vacuum drainage super-soft soil reinforcing technical method, which comprises the following steps of: cutting a certain number of drainage plates with a certain length according to the reinforcing depth and reinforcing area of dredger fill, and binding the drainage plates on filter pipes at intervals of 40 to 60cm; inserting the plastic drainage plates to a predetermined depth, and horizontally pressing the filter pipes below mud by a certain depth while the drainage plates are inserted; connecting the filter pipes with vacuumizing equipment by using mud discharging devices; and directly transferring vacuum negative pressure to foundation soil through the filter pipes and the drainage plates by a novel vacuum drainage reinforcing technology in which sludge on a surface layer is taken as a sealing layer and the filter pipes are taken as a drainage channel and reinforcing a foundation for 20 to 50 days. The low-permeability sludge on the surface layer is used for forming a sealing system, so that a large number of natural resources are saved; the dredger fill is directly reinforced without being aired after being filled, so that the construction period is shortened, and reinforcing speed is high; the bearing capacity of the foundation reaches 50 to 80kPa, and the reinforcing effect is good; and natural sand and stone materials and a sealing film are not used, so that environmental friendliness, high speed, economy and advancement are achieved.

Description

technical field [0001] The invention belongs to a foundation reinforcement method of the foundation soil reinforcement technology of civil engineering. In particular, it relates to a new ultra-soft soil foundation reinforcement technology-a filter tube step-in vacuum drainage reinforcement ultra-soft soil technology method. Background technique [0002] Vacuum preloading soft soil foundation method has been used in my country for more than 20 years, and the construction technology is very mature. This method has been widely and massively used not only in the water transportation industry, but also in the national infrastructure industry. In a ministerial foundation specification. [0003] With the development of coastal cities in my country, the scale of land reclamation from the sea continues to expand, and many problems have emerged. On the one hand, natural resources such as sand, gravel, and thorn (bamboo) fences are becoming increasingly scarce, and the traditional vacu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/10
Inventor 李卫梁爱华杨京方刘爱民于健喻志发刘天韵曹永华侯晋芳冯军
Owner TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG
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