Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Blasting and dismantling special local protecting method of building

A technology of building and protection method, applied in the field of blasting demolition of buildings, can solve problems such as restricting the development and application of blasting demolition technology, affecting normal production and life in cities, and increasing project costs, so as to avoid casualties and property losses, eliminate The effect of flying rocks on the ground and speeding up urban construction

Inactive Publication Date: 2012-06-13
LANZHOU UNIVERSITY
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measures are not only costly, labor-intensive, time-consuming, blocking traffic, and affecting the environment, but also have a huge impact on densely populated cities, seriously restricting the development and application of blasting demolition technology, and forming blasting demolition technology because of its advantages in cities. While playing a huge role in construction, its application is severely restricted by various factors
[0003] The safety distance of buildings collapsing, touching the ground, flying rocks and ground shaking is the first consideration in the design of demolition blasting, in order to avoid them from causing casualties and damaging surrounding buildings (structures) and equipment. Blasting the warning area and carrying out necessary protection and relocation will not only cause a significant increase in project costs, but also seriously affect the normal production and life of the city. The economic losses and social impacts in highly densely populated cities are particularly prominent, and should be avoided.

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
  • Blasting and dismantling special local protecting method of building
  • Blasting and dismantling special local protecting method of building

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Carry out directional dumping blasting demolition of a brick cylindrical structure. First, according to the blasting incision 3, collapse mode, and collapse range designed for the demolition of brick-built cylindrical structures, the special parts 6 and their collapse contact points 7 are determined; then, according to the blasting design, conventional methods and equipment are used to drill holes , carry out blasting charge, block the blast holes, and connect the detonation network; then, bind or hang flexible materials 4 on the upper edge of the blasting incision 3 of the brick cylindrical structure and the top of the structure, such as multi-layer sacks, multi-layer palm mats, multi-layer Layer quilts, etc., or lay soft materials 5 on the ground 2 at the corresponding collapsed touch points 7, such as sacks filled with sand, straw bags filled with sand, multi-layer brown mats, multi-layer quilts, or both Bind or hang flexible material 4 on the upper edge of...

Embodiment 2

[0022] In Example 2, the directional dumping blasting demolition of the shear wall structure was carried out. First, according to the blasting cutout 3, collapse mode, and collapse range designed for the directional dumping blasting demolition of the shear wall structure, the upper edge of the blasting cutout 3 is determined to be the special part 6 and its collapse contact point 7; then, according to the blasting design, Use conventional methods and equipment to drill holes in the concrete wall, carry out blasting charges, block the blast hole, and connect the detonation network; then, bind or hang flexible material 4 on the upper edge of the blasting cut 3, and the flexible material 4 can be multi-layer sacks, Multi-layer brown mats, multi-layer quilts, etc., or lay soft materials 5 at the corresponding collapsed touch points 7 on the ground 2, such as sacks filled with sand, straw bags filled with sand, multi-layer brown mats, multi-layer mats, etc. Layer quilts, or bind or...

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 relates to a blasting and dismantling special local protecting method of a building. The protecting method comprises the following steps: first, determining a special position of the building to be blasted and dismantled and a collapse touchdown place of the special position according to a blasting notch, a collapse way and a collapse range of a blasting and dismantling design of the building; and then, according to a blasting design, punching a hole by adopting a routine method and equipment, carrying out blasting charge, blocking a blast hole and connecting a detonating network; and finally, binding or putting a flexible material on the special position; or paving a soft material at the collapse touchdown place; or paving the soft material at the collapse touchdown place while binding or putting the flexible material on the special position. By using the blasting and dismantling special local protecting method of the building, not only can the touchdown flyrock of the collapsing building be eliminated, the touchdown shock be decreased and the personnel injury and death and the property loss which are possibly caused be avoided, but also the interference of a material and labor consumption to production, life and traffic and the influence on the environment are also avoided, and the job progress is quickened.

Description

technical field [0001] The invention relates to building blasting demolition technology, in particular to a special local protection method for building blasting demolition. Background technique [0002] my country's blasting demolition started in the 1950s. Over the past few decades, with the rapid development of economic construction, great progress has been made, rich experience has been accumulated, and it has become an important part of engineering blasting. Because it is relatively safe, efficient, economical, and does not require complex equipment, it has become the preferred method for the demolition of various buildings. However, the flying rocks and ground vibrations induced by the collapse of buildings during demolition may cause casualties and Damage to surrounding facilities, in order to prevent it and avoid negative impacts, people have been digging shock-absorbing trenches to weaken the effect of ground vibration, or laying a certain thickness of loose sand cu...

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): F42D3/02F42D5/045
Inventor 言志信
Owner LANZHOU UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products