Unlock instant, AI-driven research and patent intelligence for your innovation.

Construction method for optimizing grooving and rock entering of underground diaphragm wall

A technology for underground diaphragm wall and trough construction, which is applied in design optimization/simulation, sheet pile wall, foundation structure engineering, etc., can solve the problems of long trough construction time, difficult construction, complex geological conditions, etc., to ensure safety Effect

Active Publication Date: 2020-09-15
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the trenching construction in different strata, especially for the trenching construction of the diaphragm wall under complex geological conditions, there are defects such as complex geological conditions, difficult construction, long trenching construction time, and easy collapse of the opposite corners.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method for optimizing grooving and rock entering of underground diaphragm wall
  • Construction method for optimizing grooving and rock entering of underground diaphragm wall
  • Construction method for optimizing grooving and rock entering of underground diaphragm wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of construction method of optimizing underground diaphragm wall into groove into rock in this embodiment, such as figure 1 shown, including the following steps:

[0053] Step 1. According to the stratum parameters obtained from the geological survey, sort the applicability of several groove-forming construction techniques applicable to the current stratum, that is, according to the soil structure, soil classification and soil thickness of the current stratum, the trenching construction techniques are ranked from high to low according to the applicability. Slot machine grooving, percussion drilling grooving, rotary drilling grooving, blasting grooving, and milling grooving machine grooving processes are sorted according to their applicability. The order of lowest applicability is percussion drilling, rotary drilling, blasting, slotting machine, and milling machine.

[0054] Step 2. Establish a three-dimensional stratum model based on the stratum parameters obtain...

Embodiment 2

[0060] This embodiment is further optimized on the basis of embodiment 1, and said step 2 includes the following sub-steps:

[0061] Step 2.1, using the MIDASGTSNX finite element simulation software to establish a three-dimensional stratum model according to the soil quality and thickness of the stratum, the three-dimensional stratum model has several grid layers arranged in sequence from top to bottom, and different grid layers are marked with different colors or lines. A grid layer represents a stratum;

[0062] Step 2.2. On the 3D stratum model, establish the L-shaped groove simulation area according to the L-shaped wall that actually needs to be constructed, and establish the first soil influence along the direction of the straight section at the ends of the two straight sections of the L-shaped groove simulation area. The simulation area and the second soil influence simulation area;

[0063] Step 2.3: Establish a number of measuring points in the L-forming trough simula...

Embodiment 3

[0068] This embodiment is further optimized on the basis of the above-mentioned embodiment 1 or 2, the first soil influence simulation area and the second soil influence simulation area are both common soil; or the first soil influence simulation area It is common soil, and the second soil influence simulation zone is concrete; or the first soil influence simulation zone and the second soil influence simulation zone are both concrete.

[0069] In MIDASGTSNX finite element simulation software, input the corresponding soil thickness, density, soil quality and other parameters of the first soil impact simulation area and the second soil impact simulation area, and then use MIDASGTSNX finite element simulation software to analyze the excavation in the L formation groove simulation area When, the impact on the first soil impact simulation area and the second soil impact simulation area is determined, and then it is determined whether the first soil impact simulation area and the sec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a construction method for optimizing grooving and rock entering of an underground diaphragm wall. The method comprises steps of establishing a stratum three-dimensional model according to geological exploration data; establishing an L-shaped forming groove simulation area on the stratum three-dimensional model; secondly, determining the deformation safety level of the optimal grooving construction process in a finite element analysis mode; meanwhile, aiming at a grooving machine suitable for a preferable grooving construction process, analyzing the efficiency grade andthe cost grade of the corresponding grooving machine; assigning values to the deformation safety level, the efficiency level and the cost level; obtaining the optimal stable energy efficiency of the grooving construction process and the grooving machine through calculation. The grooving construction process and the grooving machine can be scientifically and effectively optimized and combined through the stable energy efficiency, and therefore on the premise that the safety of grooving construction is effectively guaranteed, the grooving construction efficiency is effectively improved, and meanwhile the grooving construction cost is effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of underground diaphragm wall construction, and in particular relates to a construction method for optimizing underground diaphragm wall formation into grooves and rock entry. Background technique [0002] The trenching construction technology of underground diaphragm wall has become mature in soft soil stratum, but it has always been a difficult problem to excavate the trenching of underground diaphragm wall under complex stratum conditions, especially in deep foundation pits with a tight construction period. For the project, the traditional scheme of connecting walls and forming grooves cannot meet the requirements of the construction period and is less economical. Therefore, combination construction is usually chosen as the groove-forming scheme, and different combination construction techniques can be adapted to the characteristics of most complex strata, so they are gradually applied to the groove-formi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/13E02F5/02E02D5/18
CPCG06F30/23G06F30/13E02D5/187E02F5/02
Inventor 苏春生何十美郭建强庄超吴兴典唐博张川军梁朋刚汤振亚
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP