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Three-arm hydraulic wagon drill and tunnel drilling and grouting construction method

A technology of drilling grouting and rock drilling jumbo, which is applied in the direction of tunnel, tunnel lining, earthwork drilling and mining, etc. It can solve the problems of time-consuming, laborious and low efficiency, and achieve the advantages of advanced construction technology, convenient and fast disassembly, and cost saving. Effect

Inactive Publication Date: 2010-04-07
CHINA RAILWAY TUNNEL
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AI Technical Summary

Problems solved by technology

[0003] At present, the three-arm hydraulic rock drilling rig is only suitable for blasting and excavating tunnels and underground engineering with good surrounding rock geological conditions. For faults and weak fracture zones, large-scale equipment such as three-arm hydraulic rock drilling rigs are often idle. Usually multifunctional drilling rigs are used for deep hole grouting construction, but the efficiency is low, time-consuming and labor-intensive

Method used

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  • Three-arm hydraulic wagon drill and tunnel drilling and grouting construction method
  • Three-arm hydraulic wagon drill and tunnel drilling and grouting construction method
  • Three-arm hydraulic wagon drill and tunnel drilling and grouting construction method

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Embodiment Construction

[0031] In order to better illustrate the present invention, give examples as follows:

[0032] After a subsea tunnel enters the sea area, the geological conditions are complex and changeable. The bedrock of the tunnel is mainly volcanic breccia tuff with crystalline debris, partially sandwiched with tuff, and there are many diabase veins and quartz syenite veins intruded. The integrity of the body and the thickness of the weathered zone vary greatly, and most of them are fragmented to mosaic broken structures. The impermeability of the surrounding rock is easy to deteriorate when it is loose and deformed, and seepage deformation damage may occur, causing geological disasters such as mud gushing, water gushing, and collapse. Therefore, in tunnel excavation construction, advanced pre-grouting is the key link to ensure construction safety and the top priority of the work. "Lining" construction deployment prerequisites, see the specific flow chart figure 2 shown. The advanced p...

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Abstract

The invention discloses a three-arm hydraulic wagon drill and a tunnel drilling and grouting construction method, belonging to the technical field of traffic construction. The invention carries out pertinent improvement on the three-arm hydraulic wagon drill, adopts a T38*3.66 circular extension drill rod to be cooperatively used with the three-arm hydraulic wagon drill, and establishes a water cleaning and wind cleaning dual system to be used in the tunnel drilling and grouting construction. The tunnel drilling and grouting is accomplished by grouting-stop wall construction, drilling, orifice tube installation, grouting and grouting effect evaluation, and a better construction effect is achieved. Compared with the prior equipment, the construction efficiency is increased, the energy conservation and environment protection are realized, the construction conditions are improved, and the grouting water plugging rate reaches more than 98%, thereby having excellent popularization and application values.

Description

technical field [0001] The invention relates to a three-arm hydraulic rock drilling jumbo and a tunnel drilling and grouting construction method, belonging to the technical field of traffic construction. Background technique [0002] When tunnels and underground projects pass through unfavorable geological sections such as fractured zones, karsts, high confined water, and weak strata, due to joints and fissures cutting rock strata and groundwater recharge, they face various geological risks such as water gushing, mud inrush, and collapse during engineering construction. , in order to effectively avoid such risks and ensure the safety of personnel and machinery and equipment, it is necessary to carry out drilling and grouting operations on the unfavorable geological sections in front to achieve the purpose of water stop and reinforcement of surrounding rock. In recent years, with the construction technology and mechanization level The improvement of drilling and logistics tun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
Inventor 朱琴生
Owner CHINA RAILWAY TUNNEL
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