价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
4期
298-300,301
,共4页
物探方法%高密度电法%地质灾害%工程治理效用
物探方法%高密度電法%地質災害%工程治理效用
물탐방법%고밀도전법%지질재해%공정치리효용
geophysical exploration method%high-density electrical method%geological disaster%project management effect
根据皖南地区地质灾害的实际特点，能用于山区地质灾害勘察的物探方法相对较少，浅层地震探测基岩面法是工程物探的首选方法，但当遇到山区相对高差大，地形切割强烈，植被发育茂密且腐殖层厚度很大时，声波信号受屏蔽导致地震探测失效；因此尝试采用直流高密度电法探测山区覆土层厚度和基岩面起伏情况。根据物性标本观测资料建立模型并进行正反演计算分析，通过对休宁县七里顶地质灾害物探方法勘查实例，证实直流高密度电法可以获得较为理想的探测效果。在局部地形较平缓、地震反射波有效的区段进行两种物探方法的综合解释，可以提高解释的可靠性及解释精度。科学、合理地应用物探中各种方法，提高物探成果的解释精度，减少人为因素干扰，为皖南地区地质灾害治理工作提供可靠的理论依据，为灾害治理工程建设提供技术支持。
根據皖南地區地質災害的實際特點，能用于山區地質災害勘察的物探方法相對較少，淺層地震探測基巖麵法是工程物探的首選方法，但噹遇到山區相對高差大，地形切割彊烈，植被髮育茂密且腐殖層厚度很大時，聲波信號受屏蔽導緻地震探測失效；因此嘗試採用直流高密度電法探測山區覆土層厚度和基巖麵起伏情況。根據物性標本觀測資料建立模型併進行正反縯計算分析，通過對休寧縣七裏頂地質災害物探方法勘查實例，證實直流高密度電法可以穫得較為理想的探測效果。在跼部地形較平緩、地震反射波有效的區段進行兩種物探方法的綜閤解釋，可以提高解釋的可靠性及解釋精度。科學、閤理地應用物探中各種方法，提高物探成果的解釋精度，減少人為因素榦擾，為皖南地區地質災害治理工作提供可靠的理論依據，為災害治理工程建設提供技術支持。
근거환남지구지질재해적실제특점，능용우산구지질재해감찰적물탐방법상대교소，천층지진탐측기암면법시공정물탐적수선방법，단당우도산구상대고차대，지형절할강렬，식피발육무밀차부식층후도흔대시，성파신호수병폐도치지진탐측실효；인차상시채용직류고밀도전법탐측산구복토층후도화기암면기복정황。근거물성표본관측자료건립모형병진행정반연계산분석，통과대휴저현칠리정지질재해물탐방법감사실례，증실직류고밀도전법가이획득교위이상적탐측효과。재국부지형교평완、지진반사파유효적구단진행량충물탐방법적종합해석，가이제고해석적가고성급해석정도。과학、합리지응용물탐중각충방법，제고물탐성과적해석정도，감소인위인소간우，위환남지구지질재해치리공작제공가고적이론의거，위재해치리공정건설제공기술지지。
According to the actual characteristics of the geological disasters in south Anhui, the geophysical exploration methods can be used for the surveys of mountain geological disasters are less. Bedrock surface method of shallow seismic exploration is the first selection of engineering geophysical exploration methods. But when the relative elevation difference of mountains is big, the terrain cutting is strong, vegetation development is dense and the thickness of humus layer is very large, the earthquake detection would be failure because the acoustic signal is blocked. So, the workers try to use direct current high density resistivity method to detect the mountainous soil thickness and the ups and downs of bedrock surface. According to the physical specimen observation data, the model is established and the inversion calculation analysis was carried on. Through the exploration examples of geophysical exploration methods of geological disasters in Qiliding, Xiuning County, it is confirmed that direct current high-density electrical method can obtain the ideal effect. The integrated interpretation of the two methods of geophysical exploration in the area of the topography is smooth and seismic reflection wave is effective can improve the reliability of interpretation and the interpretation accuracy. Scientific and reasonable application of geophysical exploration in various methods, improvement of the interpretation accuracy of the geophysical exploration results, reducing of the artificial interference factors can provide reliable theoretical basis for geological disaster management work in south Anhui and provide technical support for disaster management project construction.
