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Consolidation treatment method for drainage and exhaust of soft down-lying layer

A technology for weak underlying layers and strata, applied in soil protection, infrastructure engineering, gaskets, etc., can solve the problems of continuous seepage of water on the ground and increase costs, so as to reduce treatment costs, improve efficiency, reduce Effects of Environmental Pollution

Inactive Publication Date: 2020-03-06
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to use large-scale mechanical equipment, which increases the cost, and it is easy to cause water to seep out of the ground in the later stage

Method used

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  • Consolidation treatment method for drainage and exhaust of soft down-lying layer
  • Consolidation treatment method for drainage and exhaust of soft down-lying layer
  • Consolidation treatment method for drainage and exhaust of soft down-lying layer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , 4 , 6, a kind of method that is used for the consolidation treatment of drainage and exhaust of weak substratum, it comprises the following steps:

[0044] Step1.1: Use pile driver or foundation drilling equipment 1 to drill the foundation to be treated, and make the depth of the drill hole reach the stratum to be treated;

[0045] Step 1.2: pouring cement mortar 2 with a large amount of expansion agent in all boreholes by pouring at intervals;

[0046] Step1.3: Set up a suction machine 3 inside the borehole without pouring, and suck the accumulated water discharged from the adjacent hole to the borehole in real time;

[0047] Step1.4: After the cement mortar 2 is solidified and stable, and the weak underlying layer is consolidated, remove the suction machine 3 and backfill the hole.

[0048] Further, the arrangement of the drilled holes in Step 1.1 is arranged according to the principle of equal spacing and parallelism, and the diameter of the drilled...

Embodiment 2

[0052] see figure 2 , 4 , 5, 6, a kind of method that is used for the consolidation treatment of drainage and exhaust of weak substratum, it comprises the following steps:

[0053] Step2.1: Use pile driver or foundation drilling equipment 1 to drill the foundation to be treated, and make the depth of the drill hole reach the stratum to be treated;

[0054] Step2.2: Insert flower tubes 5 wrapped with dense polymer semipermeable membranes 4 in all the drilled holes, and the dense polymer semipermeable membranes 4 need to be densely covered with the entire flower tubes 5;

[0055] Step2.3: After arranging all the drilled flower tubes 5, connect all the flower tubes 5 to the suction machine 3 and perform strong suction;

[0056] Step2.4: Pull out the flower tube 5 after all the drilling holes are drained and consolidated, and fill the holes with cement mortar 2 with a small amount of expansion agent.

[0057] Further, the drilling diameter of the drilled holes in Step 2.1 is: 15...

Embodiment 3

[0062] see image 3 , 4 , 5, a kind of method that is used for the consolidation treatment of drainage and exhaust of weak substratum, it comprises the following steps:

[0063] Step3.1: use pile driver or foundation drilling equipment 1 to drill the foundation to be processed, and make the depth of the drilled hole reach the stratum to be treated; the drilled hole adopts a quincunx arrangement;

[0064] Step3.2: Pour cement mortar 2 with a large amount of expansion agent in the plum blossom center hole of the plum blossom-shaped drilled hole;

[0065] Step3.3: Arrange flower tubes 5 wrapped with dense polymer semipermeable membrane 4 in the holes around the center hole of the plum blossom, and the dense polymer semipermeable membrane 4 needs to densely cover the bottom of flower tube 5;

[0066] Step3.4: Use the suction machine 3 to connect with the flower tube 5, and suck until the pulp emerges;

[0067] Step3.5: After the slurry emerges, lift the flower tube 5 and pump i...

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Abstract

The invention discloses a consolidation treatment method for drainage and exhaust of a soft down-lying layer. According to the method, effective reinforcement treatment can be carried out on a foundation, and meanwhile the consolidation treatment method is simple and convenient to operate, and many large-scale mechanical equipment is not needed, so that the foundation treatment cost is reduced; and in addition, the construction period can be shortened, economic benefits are improved, little pollution is generated, and effective environment protection can be achieved.

Description

technical field [0001] The invention belongs to the technical field of foundation reinforcement treatment, and in particular relates to a method for consolidation treatment of drainage and exhaust in weak underlying layers. Background technique [0002] The current main method for dealing with foundations with weak substrata is the dynamic compaction method. The dynamic compaction method uses gravity to forcibly smash some fillings into the soil to the weak substratum. This method does not directly compress the soft substratum Instead, other materials are used to squeeze the gaps of soil particles, so that the water and air in the gaps of soil particles can penetrate to the surroundings to achieve the purpose of consolidating the weak underlying layer, thereby improving the bearing capacity of the foundation. This method requires the use of large-scale machinery and equipment, which increases the cost, and it is easy to cause water to seep out of the ground in the later stag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
CPCE02D3/10E02D2300/002E02D2450/102E02D2450/103
Inventor 刘杰李洪亚李伟陈苇萌李运舟杨鸿飞谢晓康唐洪宇司马艳李远航何卓文张瀚黎照孙涛高素芳石谦杨浩宇
Owner CHINA THREE GORGES UNIV