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Directional drilling and rock splitting chamber forming method

A technology of directional drilling and drilling device, which is applied in the field of drilling and directional drilling and rock splitting, which can solve the problems of waste of resources, tree disturbance, short life of cutting tools and seals, etc., and achieve simple construction process and high efficiency. Economic benefits and efficiency-enhancing effects

Inactive Publication Date: 2016-06-08
NANJING HAIJIE MACHINERY MFG CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In addition, it is very easy to cause disturbance to surrounding rocks, underground facilities and trees
The shield tunneling method is a construction method for cutting rock mass, conveying rock ballast, and assembling tunnel lining. The construction area is relatively large, the cost of shield tunneling equipment is high, and the life of cutting tools and seals is short. Due to defects in construction principles, cutting rock The body cannot be used for secondary use, resulting in a huge waste of resources
In addition, environmental factors sometimes become the decisive factor in choosing a construction method. However, the construction of large-scale roadheaders is limited in the environment where the site plane of the tunnel opening is narrow and it is impossible to assemble large-scale roadheaders.

Method used

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  • Directional drilling and rock splitting chamber forming method
  • Directional drilling and rock splitting chamber forming method
  • Directional drilling and rock splitting chamber forming method

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Embodiment

[0032] In this embodiment, the construction flow chart of the method of directional drilling and splitting rock is as follows: figure 1 As shown, the directional drilling rock-splitting method consists of setting the trajectory of the tunnel body, fixing the core drilling rig, injecting coolant, starting the drilling rig, drilling with several core drilling tools according to the set trajectory, and taking cores to form a core circle. , Drilling of rock blocks in the cave, decomposition of rock blocks in the cave, discharging, slag discharging and other steps. Firstly, according to the requirements of the design plan, the profiling trajectory of the required cave body is adjusted, and the working surface is divided into three parts: bedrock, core ring and cave body to meet the design requirements. Proceed as follows: first step, design the profiling trajectory of the chamber, set the width of the chamber as D, the horizontal height of the chamber as B, the diameter of the dril...

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Abstract

The invention relates to a drilling method, in particular to a directional drilling and rock splitting chamber forming method, and belongs to the technical field of tunnel construction. The method includes the following steps that firstly, a hole body profiling track is designed; secondly, a drilling device and a rock splitting device are fixed; thirdly, holes are drilled according to the hole body profiling track; and fourthly, the drilling device drills a stratum inside a hole body, a rock core is separated from the inside of the stratum, and slag is discharged; the rock splitting device splits the hole body, and broken rocks inside the hole body are discharged until a chamber is formed. The directional drilling and rock splitting chamber forming method has the beneficial effects that the construction process is simple, the design is novel, the efficiency is improved, the cost is lowered, and the directional drilling and rock splitting chamber forming method is suitable for being widely popularized in the market.

Description

technical field [0001] The invention relates to a drilling method, in particular to a method of directional drilling and splitting rock to form a tunnel, which belongs to the technical field of tunnel construction. Background technique [0002] With the development of society, the development of various large-scale projects, the expansion of various large-scale construction projects, the rapid development of construction projects such as railways, light rail, highways, and water diversion projects, the expansion of city scale, the lack of land and other resources, to the subway The development has brought new leap heights. Therefore, the development of tunnel and chamber engineering is inevitable. At present, such projects mainly adopt mining method and shield method. The mining method is the blasting method, which is mainly completed by drilling and blasting methods, supplemented by slag removal by shipping machinery. The blasting, lining, support, ventilation, dust prev...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D9/10E21C37/04
CPCE21C37/04E21D9/00E21D9/10E21D9/1053
Inventor 施杰严道友陈桂莲谢建新严尚云施洋
Owner NANJING HAIJIE MACHINERY MFG CO LTD
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