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

Anti-collapse safety protection method for foundation pit fixed-point blasting

A safety protection and anti-collapse technology, applied in the direction of blasting, etc., can solve the problems of easy safety accidents and collapse, so as to improve the protection effect and avoid the effect of collapse

Inactive Publication Date: 2019-07-19
HUIZHOU ZHONGTE BLASTING PROJECT CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. If the excavation is not deep, you can use the method of setting the side slope to stabilize the soil slope. The slope size is determined according to the relevant construction regulations. If the excavation is deep and there are buildings nearby, you can use the method of foundation pit wall support, shotcrete retaining method, and large-scale excavation. The foundation pit even adopts methods such as underground diaphragm wall and column-type bored pile interlocking to protect the outer soil layer from collapsing. There is no influence on nearby buildings. The well point method can be used to reduce the groundwater level. The natural air-conditioning freezing method can be used for excavation, etc. In the excavation of the foundation pit, it is necessary to blast the foundation pit according to the situation, and the foundation pit is not only prone to safety accidents during the blasting process, but also prone to collapse Therefore, we propose an anti-collapse safety protection method for foundation pit fixed-point blasting

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An anti-collapse safety protection method for foundation pit fixed-point blasting, the method comprising the following steps:

[0023] A. Select the blasting point, and clean the surface of the blasting point and the surrounding ground;

[0024] B. Use drilling tools to drill holes at the blasting point;

[0025] C. Drill a hole outside the blasting point, and fix the anchor rod in the hole by grouting;

[0026] D. Squeeze the I-beam into the soil outside the hole through the bucket of the excavator;

[0027] E. Bury the explosives in the blast hole, and cover the top of the blast point with a rubber protective plate;

[0028] F. Wrap the barbed wire around the outside of the I-beam and the anchor, and cover the barbed wire on the top of the I-beam and the anchor;

[0029] G. After the foundation pit is blasted, install settlement observation devices and warning devices around it.

[0030] This method can effectively improve the protection effect of the foundation p...

Embodiment 2

[0038] An anti-collapse safety protection method for foundation pit fixed-point blasting, the method comprising the following steps:

[0039] A. Select the blasting point, and clean the surface of the blasting point and the surrounding ground;

[0040] B. Use drilling tools to drill holes at the blasting point;

[0041] C. Drill a hole outside the blasting point, and fix the anchor rod in the hole by grouting;

[0042] D. Squeeze the I-beam into the soil outside the hole through the bucket of the excavator;

[0043] E. Bury the explosives in the blast hole, and cover the top of the blast point with a rubber protective plate;

[0044] F. Wrap the barbed wire around the outside of the I-beam and the anchor, and cover the barbed wire on the top of the I-beam and the anchor;

[0045] G. After the foundation pit is blasted, install settlement observation devices and warning devices around it.

[0046] This method can effectively improve the protection effect of the foundation p...

Embodiment 3

[0054] An anti-collapse safety protection method for foundation pit fixed-point blasting, the method comprising the following steps:

[0055] A. Select the blasting point, and clean the surface of the blasting point and the surrounding ground;

[0056] B. Use drilling tools to drill holes at the blasting point;

[0057] C. Drill a hole outside the blasting point, and fix the anchor rod in the hole by grouting;

[0058] D. Squeeze the I-beam into the soil outside the hole through the bucket of the excavator;

[0059] E. Bury the explosives in the blast hole, and cover the top of the blast point with a rubber protective plate;

[0060] F. Wrap the barbed wire around the outside of the I-beam and the anchor, and cover the barbed wire on the top of the I-beam and the anchor;

[0061] G. After the foundation pit is blasted, install settlement observation devices and warning devices around it.

[0062] This method can effectively improve the protection effect of the foundation p...

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 an anti-collapse safety protection method for foundation pit fixed-point blasting. The anti-collapse safety protection method comprises the following steps that A, a blasting point is selected and the surface of the blasting point and the surrounding ground are cleaned; B, the blasting point is drilled with a drilling tool; C, holes are drilled on the outer side of the blasting point, and anchor rods are fixed in the holes by grouting; D, I-steel is extruded into soil outside the holes through a bucket of an excavator; E, explosives are embedded into the blasting holes,and the top of the blasting point is covered with a rubber protective plate; and F, the outer sides of the I-steel and the anchor rods are enclosed with a wire mesh, and the wire mesh coveres the topof the I-steel and the anchor rods. With the adoption of the anti-collapse safety protection method, the protection effect of foundation pit blasting can be effectively improved, the phenomenon thata foundation pit collapses after the blasting is avoided, collapse monitoring can be carried out on the foundation pit after the blasting, monitoring data are transmitted to smart phones of people inreal time, and the requirements of the people for remote monitoring on the foundation pit are met.

Description

technical field [0001] The invention relates to the technical field of foundation pit protection, in particular to an anti-collapse safety protection method for fixed-point blasting of foundation pits. Background technique [0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. If the excavation is not deep, you can use the method of setting the side slope to stabilize the soil slope. The slope size is determined according to the relevant construction regulations. If the excavation is deep and there are buildings nearby, you can use the method of foundation pit wall support, shotcrete retaining method, and large-scale excavation. The foundation pit even adopts methods such as underground diaphragm wall and column-type bored pile interlocking to protect the outer soil layer from collapsing. There is no influence on nearby buildings. The well point method can be used to reduce the ground...

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): F42D3/00F42D5/00
CPCF42D3/00F42D5/00
Inventor 戴霖黄志勇戴嘉辉
Owner HUIZHOU ZHONGTE BLASTING PROJECT CO LTD