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

Method for conveying large drilling grouting equipment

An equipment and grouting technology, applied in mining equipment, shaft equipment, earth-moving drilling, etc., can solve the problems of flooded wells, large fine cracks, large water inflow, etc., and achieve the effect of reducing bump damage

Active Publication Date: 2019-03-19
BEIJING CHINA COAL MINE ENG CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of shaft shaft construction, the probability of karst caves, large cracks, fault fracture zones, and fine cracks and pores exposed by deep shaft shafts is relatively high, so deep shaft shafts often expose a large amount of water inflow. When the inflow of water is greater than the drainage capacity of the pump, it will cause a well flooding accident [5]

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
  • Method for conveying large drilling grouting equipment
  • Method for conveying large drilling grouting equipment
  • Method for conveying large drilling grouting equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Project Overview

[0043] The lead-zinc mine in Maoping Mine is located in the alpine valley area. The 112-line shaft is a blind shaft. The shaft is a circular shaft with a diameter of 5.7m and a designed shaft depth of 960m. After reaching the elevation of +480m, in order to prevent the phenomenon of flooding caused by continued excavation, the excavation of the wellbore was suspended, and it was decided to resume the excavation of the wellbore after the pre-grouting work was completed. Due to the limitation of the existing space, it was finally decided to set up an operation platform in the middle section of +670m underground for wellbore pre-grouting.

[0044]The wellbore pre-grouting project requires a lot of equipment, which needs to be transported from the surface to the middle section of +670m underground. The equipment mainly includes drilling rigs, drill pipes, mud pumps and 350 grouting pumps. The specific equipment is shown in Table 1.

[0045] Table 1 List...

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 method for conveying large drilling grouting equipment, which comprises the following steps of: (1) disassembling and classifying the drilling grouting equipment; (2) selecting different conveying methods for different types of drilling grouting equipment; (3) assembling the drilling grouting equipment. The disassembled drilling grouting equipment is divided into three types of equipment, wherein the first type of equipment is single pieces with large sizes, the second type of equipment is single pieces with small sizes and large masses, the third type of equipment issingle pieces with long and thin length, and different methods for transportation, lowering and passing through a dock door are made according to different characteristics of the three types of equipment, the large drilling grouting equipment can be smoothly lowered into a well and the installation can be completed. A TSJ-2000 drilling rig and a 350 pump grouting pump are firstly used for construction in domestic. The large equipment is lowered and conveyed by adopting a blind vertical shaft method, the method has the advantages of high lowering speed, low cost and high stability, and important reference significance is provided for similar large equipment going down the shaft.

Description

technical field [0001] The invention relates to the technical field of drilling construction. Specifically, it is the delivery method of large-scale drilling and grouting equipment. Background technique [0002] With the rapid development of my country's national economy in recent years, the demand for mineral resources has increased dramatically. The supply of non-ferrous metals is becoming increasingly tight, while shallow and simple geological resources are gradually decreasing, and it is imperative to develop complex geological conditions and deep resources. The engineering volume of the shaft shaft only accounts for less than 10% of the total mine engineering volume, but its construction period accounts for 30% to 40% of the entire mine. It is the "throat" project of mine construction. key. [0003] In the process of shaft shaft construction, the probability of karst caves, large cracks, fault fracture zones, and fine cracks and pores exposed by deep shaft shafts is ...

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): E21D1/06E21D5/04
CPCE21D1/06E21D5/04
Inventor 贺文高晓耕周高明冯旭海田乐刘书杰孙帮涛向俊兴陈振国王桦邵晨霞王勇
Owner BEIJING CHINA COAL MINE ENG CO LTD