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Five-milling slotting construction method for underground diaphragm wall unit slot like Chinese character of 'bian'

A technology of trough-forming construction and unit trough, which is applied in artificial islands, sheet pile walls, water conservancy projects, etc., can solve the problems of poor integrity and anti-seepage of wall connection parts, long construction period, etc., and shorten the trough formation Construction time, enhanced integrity and anti-seepage, good effect of verticality

Inactive Publication Date: 2020-05-19
GEZHOUBA GROUP FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method of construction not only takes a long construction period, but also makes the integrity and anti-seepage of the wall connection parts worse

Method used

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  • Five-milling slotting construction method for underground diaphragm wall unit slot like Chinese character of 'bian'
  • Five-milling slotting construction method for underground diaphragm wall unit slot like Chinese character of 'bian'
  • Five-milling slotting construction method for underground diaphragm wall unit slot like Chinese character of 'bian'

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1-2 Among them, a five-milling construction method for the "Bian"-shaped unit groove section of the ground connection wall is divided into the first "T"-shaped section 1, the second "T"-shaped section 2 and the connecting wall "Bian"-shaped unit groove. Seam section 3 is constructed in three sections.

[0028] In the preferred solution, the first "T"-shaped section 1 and the second "T"-shaped section 2 are respectively set as two sections of main holes for grooving construction, and the joint section 3 is set as auxiliary holes for final grooving .

Embodiment 2

[0030] The five-milling construction method of the "Bian"-shaped unit groove section specifically includes the following steps:

[0031] 1) Preparatory work for construction;

[0032] 2) According to the milling construction sequence, the "Bian"-shaped unit groove section of the ground connection wall is divided into four main holes and one auxiliary hole;

[0033] 3) After the wall is solidified with mud, use the "pure milling method" of the double-wheel milling machine, and carry out the construction according to the principle of milling the main hole first and milling the auxiliary hole second.

Embodiment 3

[0035] On the basis of Example 2, the step 1) specifically includes guide wall construction, hydropower system formation, mud preparation, and double-wheel milling machine in place.

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Abstract

The invention provides a five-milling slotting construction method for an underground diaphragm wall unit slot like the Chinese character of 'bian'. The underground diaphragm wall unit slot like the Chinese character of 'bian' is divided into a first T-shaped section, a second T-shaped section and a joint section to conduct three-section slotting construction. Slotting construction is conducted toform four main holes in the first T-shaped section and the second T-shaped section respectively, and finally, slotting is conducted to form an accessory hole in the joint section. The five-milling slotting construction method comprises the following specific steps that (1), construction preparation is conducted; (2), according to a milling construction sequence, the underground diaphragm wall unit slot like the Chinese character of 'bian' is divided into the four main holes and the accessory hole; and (3), after slurry wall stabilizing, construction is conducted by using a pure milling methodwith a double-wheel slot milling machine according to the principle that the main holes are milled before the accessory hole is milled. By using the method, the construction requirements of the underground diaphragm wall unit slot like the Chinese character of 'bian' can be met, the construction period is shortened, the construction efficiency is improved, and the anti-seepage capacity of a walljoint is enhanced.

Description

technical field [0001] The invention relates to the field of ground connection wall construction, in particular to a five-milling construction method for a "Bian"-shaped unit groove section of a ground connection wall. Background technique [0002] Due to the limitation of the construction site, the underground diaphragm wall is generally used as the enclosure structure of the foundation pit during the construction of the urban underground space. Common structural forms of underground diaphragm wall unit grooves mainly include "one" type, "T" type, "Z" type and "Bian" type unit groove section. Among them, the "Bian"-shaped unit groove section is composed of two "T"-shaped structures with opposite directions. There are four joints in total, which are mainly used for the interconnection between several ground walls. The effect is good. For the "Bian" type unit slot section, the most common slotting construction method is to use a double-wheel slotting machine to divide it in...

Claims

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Application Information

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IPC IPC(8): E02F5/02E02D5/00E02D5/18E02D29/16E02D31/02
CPCE02D5/00E02D5/18E02D29/16E02D31/02E02F5/02
Inventor 周佳奇周昌茂罗会东魏玉巍薛高升闫昭臣杨玉飞陈敏杰张旻陈蕾冯志军陈承
Owner GEZHOUBA GROUP FOUND ENG
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