WO2021043311A1 - Tbm搭载式岩石石英含量测定***及其方法 - Google Patents
Tbm搭载式岩石石英含量测定***及其方法 Download PDFInfo
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- WO2021043311A1 WO2021043311A1 PCT/CN2020/113821 CN2020113821W WO2021043311A1 WO 2021043311 A1 WO2021043311 A1 WO 2021043311A1 CN 2020113821 W CN2020113821 W CN 2020113821W WO 2021043311 A1 WO2021043311 A1 WO 2021043311A1
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- WIPO (PCT)
- Prior art keywords
- rock
- powder
- tbm
- quartz content
- hydraulic arm
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- 239000011435 rock Substances 0.000 title claims abstract description 70
- 239000010453 quartz Substances 0.000 title claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 93
- 238000002441 X-ray diffraction Methods 0.000 claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000009527 percussion Methods 0.000 claims description 18
- 239000011034 rock crystal Substances 0.000 claims description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 13
- 239000011707 mineral Substances 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 7
- 238000002447 crystallographic data Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000000547 structure data Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000007405 data analysis Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Definitions
- the present disclosure belongs to the field of rock and soil content determination, and specifically relates to a TBM-mounted rock quartz content determination system and method.
- Quartz is a kind of minerals.
- the main methods for identifying and identifying minerals include chemical analysis, polarization microscope analysis, near-infrared analysis, and X-ray diffraction analysis.
- chemical analysis has high accuracy, it has a long analysis period and is uneconomical.
- Polarized light microscope analysis needs to grind the rock into thin slices, and then manually observe and analyze the thin slices under the polarized light microscope. This method also has a long analysis period and has a long analysis period.
- Personnel requirements are high; near-infrared analysis is fast and accurate, but it can only analyze some altered minerals and cannot identify quartz.
- the X-ray diffractometer uses the principle of diffraction to accurately determine the crystal structure of the substance to be analyzed, thereby accurately performing phase analysis, qualitative analysis and quantitative analysis.
- Minerals are naturally crystalline, so X-ray diffraction is currently recognized as the most effective method for mineral identification.
- This method has the advantages of requiring a small amount of sample, short analysis time, and high accuracy in qualitative and quantitative analysis.
- this method can only test and analyze powder samples. Therefore, in order to use this method to quickly determine the content of quartz in the surrounding rock during TBM tunnelling, it is not only necessary to have a small and high-precision portable XRD device, but also how to solve the problem.
- Mount XRD equipment on the TBM how to process the hard rock of the tunnel surrounding rock into rock powder and automatically import it into the XRD equipment sample compartment, and how to automatically give the rock quartz content analysis results.
- the present disclosure proposes a TBM-mounted rock quartz content measurement system and method.
- the present disclosure quickly and accurately measures the quartz content in the surrounding rock during the TBM tunneling process, and is intelligent in predicting cutter head wear and TBM construction. Decisions are of great significance.
- the present disclosure adopts the following technical solutions:
- a TBM-mounted rock quartz content determination system which is mounted on the side of the open TBM support shoe, includes a protective device, a sampling device, an X-ray diffraction device and a processor, including:
- the protective device includes a base on which a side wall is provided, and a ceiling for preventing rock falling and water seepage is provided on the side wall;
- the sampling device is arranged between the ceiling and the base and includes a hydraulic arm, an impact drill and a powder tank.
- One end of the hydraulic arm is arranged on the side wall and the other end is connected to the impact drill.
- the impact drill is controlled by the contraction of the hydraulic arm
- the front end of the impact drilling rig is equipped with a powder chamber, and the powder chamber is provided with a discharge port, and the rock powder falls into the X-ray diffraction analysis device through the discharge port;
- the X-ray diffraction device is used to irradiate characteristic X-rays on the obtained rock powder, record diffraction information to obtain a diffraction pattern, and the processor receives the pattern and performs matching to determine the quartz content in the rock powder.
- the side wall includes three side walls, which are respectively arranged on different sides, so that the protective device has an opening.
- the hydraulic arm is vertically arranged on the side wall.
- the front end of the percussion drill is provided with a slot for installing the powder tank, a spring is provided in the slot, and one side of the powder tank is connected with the spring in the slot, and the spring will follow the movement of the powder tank to expand and contract to ensure that the powder tank is in close contact with the surrounding rock.
- the powder tank includes a collecting hopper for collecting rock powder cut by the percussion drill.
- a screen is detachably installed under the collecting hopper to screen the rock powder to ensure that the final product is obtained.
- Rock dust can meet the requirements of X-ray diffraction analysis.
- each discharge port there are two discharge ports below the screen, one is a powder discharge port, the other is a waste discharge port, and each has a valve.
- the sampling device further includes a high-pressure water supply mechanism, the high-pressure water supply mechanism is arranged in the powder tank for cleaning the powder tank.
- the sampling device further includes a blowing mechanism, which is arranged in the powder cabin and is used to blow dry the powder cabin.
- an elastic member is installed at the front end of the powder tank, and when the percussion drill bit is driven into the surrounding rock for work, the elastic member can be close to the surrounding rock.
- the X-ray diffraction device includes a sample chamber for receiving the rock powder from the discharge port, and a funnel with a hose is arranged at the opening of the sample chamber, and is located at the lower part of the funnel.
- a micro-oscillator is installed to ensure that the rock powder from the powder discharge port can smoothly enter the sample chamber.
- the processor is provided with or connected to a database, and the database stores a powder diffraction data set specifically on the subject of quartz minerals in the research area, and the dI/I 0 data of the spectrum obtained by the processor Match with the standard data of various minerals in the data set, thereby automatically interpreting the quartz content in the rock powder.
- the working method based on the above system includes the following steps:
- the TBM support shoe When the TBM cutterhead is working, the TBM support shoe will close to the surrounding rock to provide the propulsion force of the TBM cutterhead to cut the rock, and activate the hydraulic arm to make the bit of the percussion drill contact the surrounding rock;
- the powder tank is cleaned and dried.
- the present disclosure can realize the automation and continuity of sampling in the tunnel, and greatly reduces the workload of manual sampling and grinding.
- a screen is added to the sampling device to automatically screen the obtained rock powder to meet the requirements of X-ray diffraction testing.
- two discharge ports are set up, and the samples can be used or discarded according to actual needs.
- the present disclosure improves the sample compartment of the X-ray diffraction analyzer, and can realize the automation of adding samples to the sample compartment. At the same time, the powder diffraction data set of the quartz topic is added, which can realize the accurate and rapid identification of the quartz content in the rock.
- the present disclosure is equipped with TBM, which can analyze the change of quartz content in the rock in real time during the TBM tunneling work, and provide strong data support for the intelligent construction of TBM.
- Figure 1 is a schematic diagram of the structure of the present invention
- FIG. 2 is a structural diagram of the sampling device of the present invention.
- Figure 3 is a structural diagram of an improved sample chamber
- Figure 4 is the working flow chart of the system.
- TBM support shoe 1.
- Base 3.
- Side wall 4.
- Sampling device 6.
- High pressure water supply system 7.
- Hair dryer 8.
- X-ray diffraction device 9.
- Computer data analysis system 20. Hydraulic arm; 21. Spring; 22. Powder tank; 23. Collection hopper; 24. Drill bit; 25. Rubber ring; 26. Screen; 27. Valve; 28. Powder discharge port; 29. Waste discharge Feeding port; 30. Surrounding rock; 31. Sample chamber funnel; 32. Micro oscillator; 33. Hose; 34. Sample chamber handle; 35. Cavity.
- azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, and is only a relationship term determined to facilitate the description of the structural relationship of each component or element in the present disclosure. It does not specifically refer to any component or element in the present disclosure, and cannot be understood as a reference to the present disclosure. Disclosure restrictions.
- a TBM-mounted rock quartz content determination system includes 2. Base; 3. Sidewall; 4. Ceiling; 5. Sampling device; 6. High pressure water pump; 7. Hair dryer; 8. X-ray Diffraction device; 9. Computer data analysis system.
- the base 2 is made of stainless steel plate, the outline is rectangular, the side wall 3 is welded vertically above the base, the shape of the ceiling 4 is approximately arched, and the material is also stainless steel plate.
- the protective device composed of the base 2, the side walls 3 and the ceiling 4 can not only prevent the falling rock and water seepage of the tunnel vault from damaging the internal instrument parts, but also provide support for other parts of the system.
- the sampling device 5 is mainly composed of a hydraulic arm, an improved percussion drill, a powder tank, a high-pressure water supply system and a blower.
- the hydraulic arm 20 is welded vertically on the left side wall, and the other end is connected to the impact drill.
- the hydraulic arm 20 can control the left and right movement of the impact drill and provide thrust for the work of the impact drill through its contraction.
- the biggest difference between the improved percussion drill and the existing percussion drill is that the front end of the percussion drill is provided with a slot specially installed for the powder tank, and a spring 21 is provided in the slot.
- the left side of the powder tank 22 and the spring 21 in the slot Connected.
- the powder tank 21 is made of plexiglass.
- a rubber ring 25 is installed at the front end of the powder tank 22. When the percussion bit is driven into the surrounding rock 30 for work, the rubber ring 25 is close to the surrounding rock and can buffer and protect the front end of the powder tank.
- a detachable screen 26 is installed under the collecting hopper 23. There are two discharge ports under the screen 26, one is the powder discharge port 28, the other is the waste discharge port 29, and each has a valve 27. .
- a high-pressure water supply system 6 is installed at the water outlet to clean the powder tank 22, and a blower 7 is installed at the air outlet to blow out hot air, which is mainly responsible for drying the crushing chamber and other auxiliary components.
- the X-ray diffraction device is mainly an existing X-ray diffraction analyzer, and the present invention slightly improves the sample chamber of the existing X-ray diffraction analyzer.
- a funnel 31 with a hose 33 is added to the opening of the original sample chamber, and a micro-oscillator 32 is installed at the bottom of the funnel to ensure that the rock powder from the above-mentioned powder discharge port can enter smoothly. In the sample compartment.
- the computer data analysis system has added a powder diffraction data set dedicated to minerals in the study area. This data set is selected based on the existing X-ray diffraction reference standard spectrum-PDF card, which can reduce the time for the system to check the PDF card. And to improve the accuracy of the quartz content determination results.
- the computer data analysis system can receive the rock powder diffraction pattern emitted from the X-ray diffraction device through wireless transmission, and at the same time, the system is equipped with the mineral thematic powder diffraction data set specifically for the study area to automatically retrieve it from the spectrum.
- the acquired dI/I 0 data is matched with the various mineral data in the powder diffraction data set, thereby automatically interpreting the quartz content in the rock powder.
- a method for using TBM-mounted rock quartz content determination system includes the following steps:
- Step A When the cutter head of the TBM is working, the support shoe 1 of the TBM will be close to the surrounding rock 30 to provide the propelling force of the cutter head of the TBM to cut the rock.
- the hydraulic arm 20 is activated, so that the drill bit 24 of the percussion drill is in contact with the surrounding rock 30, and the valve 27 of the powder discharge port is opened at the same time.
- Step B Turn on the switch of the percussion drill, and at the same time control the hydraulic arm 20 to slowly advance the percussion drill, so that the drill bit 24 continuously drills into the surrounding rock 30.
- the rock powder drilled at this time will continue to enter the powder compartment 22, and fall into the funnel 31 of the X-ray diffractometer sample compartment through the screen 26 and the powder discharge port 28.
- Step C Start the micro-oscillator at the funnel of the sample compartment to ensure that the rock powder in the funnel 31 can enter the sample compartment of the X-ray diffractometer.
- the valve 27 of the powder discharge port is closed, and the work of the impact drill is stopped at the same time, and the hydraulic arm 20 is controlled to retract.
- Step D Start the X-ray diffraction device 8 to start working. After about 5 minutes, the test pattern will be obtained and automatically transmitted to the computer. Then open the data analysis system 9 in the computer, and select the acquired pattern file to add to the data analysis In the system, the system will automatically search and match at this time, and the result of quartz content and its corresponding pie chart will be given after a few seconds.
- Step E Close the powder material outlet valve and open the waste material outlet valve, unplug the screen 26, open the high-pressure water supply system 6 and spray high-pressure water to clean the powder tank 22. At this time, waste and water will be discharged from the waste. The material outlet 29 flows out. After a few seconds, the high-pressure water supply system 6 is closed and the blower 7 is turned on to dry the powder chamber 22. At this time, the valve of the waste material outlet is closed and the valve of the powder material outlet is opened.
- Step F Replace the new screen and sample chamber. After the TBM is changed, the next cycle of quartz content determination can be carried out.
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
Description
Claims (10)
- 一种TBM搭载式岩石石英含量测定***,其特征是:搭载于敞开式TBM的撑靴侧面,包括防护装置、取样装置、X射线衍射装置和处理器,其中:所述防护装置包括基座,基座上设置侧壁,侧壁上设置有防止落石及渗水的顶棚;所述取样装置设置于顶棚与基座之间,包括液压臂、冲击钻机和粉料舱,所述液压臂一端设置于侧壁上,另一端连接冲击钻机,通过液压臂的收缩来控制冲击钻的移动,冲击钻机的前端设置粉料舱,粉料舱设置有出料口,岩石粉末通过出料口落入X射线衍射分析装置中;所述X射线衍射装置用于对获取的岩石粉末进行特征X射线照射,记录衍射信息获取衍射图谱,所述处理器接收所述图谱,并进行匹配,确定岩石粉末中的石英含量。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述液压臂垂直设置于侧壁上。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述冲击钻的前端设置有用于安装粉料舱的卡槽,卡槽内设置有弹簧,粉料舱的一侧与卡槽内的弹簧相连接,所述弹簧会跟随粉料舱的运动而伸缩,以保证粉料舱与围岩之间一直紧密接触。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述粉料舱包括一集料斗,用于收集冲击钻切削下来的岩石粉末,集料斗下方可拆卸安装有筛网,对岩石粉末进行筛分,以确保最终获取的岩粉能够满足X射线衍射分析的要求。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述筛网下方有两个出料口,一个为粉料出料口,一个为废料出料口,且各有一个阀门。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述取样装置还包括高压供水机构,所述高压供水机构设置于粉料舱内,用于对粉料舱进行清洗;或/和,所述取样装置还包括吹风机构,所述吹风机构设置于粉料舱内,用于对粉料舱进行吹干。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述粉料舱的前端安装有弹性件,当冲击钻头打入围岩中进行工作时,弹性件能够紧贴围岩。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述X射线衍射装置内包括一样品舱,用于接收出料口出来的岩石粉末,所述样品舱的开口处设置有一带有软管的漏斗,且在漏斗下部安装有一个微型振荡器,从而保证从上述粉料出料口出来的岩石粉末能够顺利进入样品舱中。
- 如权利要求1所述的一种TBM搭载式岩石石英含量测定***,其特征是:所述处理器设置或连接有数据库,所述数据库存储有专门关于研究区石英矿物专题的粉末衍射数据集,所述处理器获取到的谱图的晶体结构数据与数据集中的各类矿物的标准数据相匹配,从而自动解释出岩石粉末中的石英含量。
- 基于权利要求1-9中任一项所述的***的工作方法,其特征是:包括 以下步骤:在TBM的刀盘工作时,TBM的撑靴会紧贴围岩提供TBM刀盘切削岩石的推进力,启动液压臂,使冲击钻的钻头与围岩接触;启动冲击钻机的开关,同时控制液压臂缓缓推进冲击钻,让钻头不断钻入围岩中,岩石粉末进入粉料舱中,并从经过筛网和粉料出料口落入X射线衍射仪样品舱中;当样品舱中粉末量达到测试要求时,停止冲击钻机的工作,并控制液压臂使其缩回;启动X射线衍射分析仪,使其开始工作,取得测试图谱,进行检索和匹配,得到石英含量结果及其对应的饼图。
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CN112666197B (zh) * | 2020-11-29 | 2022-11-04 | 山东大学 | 一种用于tbm的岩渣石英含量测试***及方法 |
CN115097798A (zh) * | 2022-07-19 | 2022-09-23 | 西南交通大学 | 一种基于岩石构成的tbm自适应加工参数的调整***及方法 |
CN116413065B (zh) * | 2023-02-03 | 2024-06-21 | 内蒙古工业大学 | 一种花岗岩自动取样破碎装置及方法 |
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