發(fā)布時(shí)間：2018-03-28 10:13

  本文選題：錨桿　切入點(diǎn)：質(zhì)量　出處：《北方工業(yè)大學(xué)》2017年碩士論文

【摘要】：由于在煤礦工程、巖土工程等領(lǐng)域越來(lái)越多地應(yīng)用到了錨桿支護(hù)技術(shù),人們對(duì)錨桿質(zhì)量也越來(lái)越關(guān)注。錨桿長(zhǎng)度一旦由于腐蝕、斷裂等原因低于設(shè)計(jì)長(zhǎng)度,將會(huì)直接影響整個(gè)工程質(zhì)量的優(yōu)劣,嚴(yán)重時(shí)會(huì)導(dǎo)致建筑物坍塌引發(fā)事故。對(duì)拉拔力進(jìn)行測(cè)試來(lái)檢測(cè)錨桿質(zhì)量的方式,既浪費(fèi)時(shí)間又消耗勞動(dòng)力,破壞性還很大,而且還只能對(duì)錨固力進(jìn)行檢測(cè),不能檢測(cè)錨桿的長(zhǎng)度。利用超聲波法、沖擊應(yīng)力波法等這些無(wú)損檢測(cè)方法雖然減少了對(duì)周圍巖石、地層等的破壞,能夠?qū)崿F(xiàn)大面積的快速檢測(cè),可是這些測(cè)試方法與錨桿耦合性較差,并且計(jì)算和操作起來(lái)非常的復(fù)雜,測(cè)量結(jié)果也容易受到測(cè)量者的影響。本文設(shè)計(jì)的基于電駐波的錨桿無(wú)損檢測(cè)儀,它的測(cè)量探針和被測(cè)金屬錨桿之間是通過(guò)電接觸來(lái)進(jìn)行信號(hào)的傳輸,利用產(chǎn)生的電駐波來(lái)測(cè)量錨桿的長(zhǎng)度,操作簡(jiǎn)單,攜帶方便,非常適合對(duì)大面積的錨桿質(zhì)量進(jìn)行檢測(cè)。本文主要從以下四個(gè)方面進(jìn)行介紹:首先,論文介紹了利用錨桿進(jìn)行支護(hù)的優(yōu)點(diǎn)和應(yīng)用,以及對(duì)錨桿質(zhì)量進(jìn)行檢測(cè)的技術(shù)所處的現(xiàn)狀,分析了利用電駐波方法測(cè)量錨桿長(zhǎng)度的原理。其次,論文重點(diǎn)闡述了錨桿質(zhì)量檢測(cè)儀的硬件設(shè)計(jì)和軟件設(shè)計(jì)。其中,系統(tǒng)硬件部分包括單片機(jī)控制模塊、頻率生成模塊、電壓放大模塊、前置放大模塊,壓控增益模塊、檢波模塊、串口通信模塊、顯示模塊和電源模塊。軟件部分使用C語(yǔ)言,主要包括主程序流程設(shè)計(jì)、單片機(jī)模擬I2C總線通信單元、單片機(jī)控制CDCE906工作單元。然后,利用實(shí)現(xiàn)的錨桿長(zhǎng)度檢測(cè)儀對(duì)不同長(zhǎng)度的錨桿進(jìn)行了測(cè)長(zhǎng)實(shí)驗(yàn),并根據(jù)測(cè)試結(jié)果分析了誤差產(chǎn)生的原因。最后,論文指出了所研制的錨桿無(wú)損檢測(cè)儀的不足之處和需要改進(jìn)的地方,為以后的研究提出了一些建議。
[Abstract]:Due to the coal mine engineering, geotechnical engineering and other fields more and more applied to bolting technology, people pay more and more attention to the quality of anchor bolt length. Once due to corrosion, fracture and other reasons is lower than the designed length, will directly affect the quality of the project, will lead to serious accidents. The collapse of building test on the drawing force to detect the anchor quality, is a waste of time and labor consumption, damage is also great, but also can detect the anchoring force, can not detect the length of the bolt. The use of ultrasonic method, impact stress wave method etc. These NDT methods although the reduction of rock formation, such as damage to to achieve rapid detection of a large area, but these test methods and bolt coupling is poor, calculation and operation is very complex and the measurement results are also vulnerable to the influence of measurement Ring. Detector non-destructive Bolt Based on electric wave, between the measuring probe and its measured metal bolt is transmitted through the electrical contact to the signal, measured by electric standing wave generated by the bolt length, simple operation, convenient carrying, very suitable for large area of bolt quality were detected. In this paper mainly from the following four aspects: firstly, this thesis introduces the use of bolt to support the advantages and application status, and the detection technology of bolt quality, analyzes the principle of electrical measurement method using standing wave length bolt. Secondly, the paper focuses on the design of hardware and software quality testing of bolt instrument. The system hardware includes MCU control module, frequency module, voltage amplification module, amplifier module, voltage controlled gain module, detection module, serial port communication module, display Module and power module. The software using C language, mainly including the design of the main program, microcontroller simulation I2C bus communication unit, CDCE906 MCU control unit of work. Then, the different length of bolt length measurement experiment using bolt length detector, and analyzes the causes of error according to the test results. Finally, this paper points out the shortcomings of the developed detector non-destructive bolt and areas in need of improvement for the future research and put forward some suggestions.

【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD353.6;TH878

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