Drilling detecting integrated system and method for overlying strata fracture detection

A fissure and overlying rock technology, which is applied in the field of integrated drilling and measuring systems for overlying fissure detection, can solve problems such as overlying fissures cannot be detected at the same time, the reliability of sealing holes cannot be artificially verified, measurement errors, etc., and is easy to popularize and use. , The effect of improving the reliability of sealing holes and improving the detection efficiency

Inactive Publication Date: 2015-05-20
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to detect existing overlying rock fissures. Excavation drilling and overlying rock fissure detection cannot be carried out at the same time, and new cracks will be generated when the borehole is placed for a long time, resulting in certai

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  • Drilling detecting integrated system and method for overlying strata fracture detection
  • Drilling detecting integrated system and method for overlying strata fracture detection
  • Drilling detecting integrated system and method for overlying strata fracture detection

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Embodiment Construction

[0035] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0036] Such as Figure 1-Figure 9 As shown, an integrated drilling and measuring system for overlying rock fracture detection includes a probe 1, a drilling device and a control device.

[0037] The rod body of the probe tube 1 is covered with a sealing capsule 11, the upper end of the probe tube 1 is provided with external threads, and the lower end is provided with internal threads. The boss 13 is fixed, the cross section of the upper boss 12 and the lower boss 13 is trapezoidal, and the probe tube 1 rod body at the bottom of the lower boss 13 has a groove 14; Through the ball valve 10, the electric three-way ball valve 10 includes an actuator 16, an electromagnetic coil 15, an upper port 18 and a side port 17, and the actuator 16 can rotate between the upper port 18 and the side port 17.

[0038] The drilling device comp...

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Abstract

The invention discloses a drilling detecting integrated system and method for overlying strata fracture detection, and particularly relates to the field of overlying strata fracture development regulation detection under a coal mine well. The invention aims at solving the defects exist in the existing overlying strata fracture detection that excavation, drilling holes and the overlying strata fracture detection can not be conducted simultaneously, a certain measurement error or even hole collapse occurs due to the fact that new cracks occur when the drilling holes are placed for a long time, and whether hole sealing is finished or not and the reliability of the hole sealing can not be verified artificially in the detection process. The drilling detecting integrated system comprises a detection pipe, a drilling device and a control device; the upper portion of a rod body of the detection pipe is sleeved with a hole sealing capsule, the two ends of the hole sealing capsule are fixed through upper convex plates and lower convex plates which are located on the detection pipe respectively, an electric three-way ball valve is arranged inside the hole sealing capsule, and a groove is formed in the portion, at the lower portion of one convex plate, of the rod body of the detection pipe.

Description

technical field [0001] The invention relates to the field of detecting the development law of overlying rock fissures in coal mines, in particular to an integrated drilling and measuring system and method for detecting overlying rock fissures. Background technique [0002] The underground mining of coal mines causes the redistribution of the stress field and deformation field of the surrounding rock mass, resulting in different degrees of damage to the overlying rock strata. Among them, rock mining fractures are channels for water inrush in coal mines, and the evolution law of mining fractures is an important theoretical basis for judging the occurrence conditions of mine water inrush, predicting mine water inrush, and formulating mine water disaster prevention and control countermeasures. [0003] In the prior art, a patented overlying rock water-guiding fissure zone monitoring system and its detection drilling method (application number 201110457012.3,) and a coal seam goa...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B21/00E21B49/00
CPCE21B7/00E21B21/00E21B49/00
Inventor 刘学生谭云亮宁建国田成林王俊顾清恒史新帅
Owner SHANDONG UNIV OF SCI & TECH
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