Appraisal System And Measure Of Faultage Stability In Shenzhen Luohu Jiancheng District Based On GIS

Engineering disaster of faultage fracture zone is a subject of extreme complication and momentously economic implications. How to construct projects and sustain its stability economically and effectively in such geological circumstance is always a problem fuzzing many experts in rock mechanics and engineering geology. Ground tensile deformation and asymmetry sedimentation are caused by slow creepage of faultage fracture zone, which brings great damage effects to ground buildings. Based on abroad consultations and studies on national and foreign related datum, mainly taking Shenzhen Luohu fracture zone for research object, and by means of analysis on locale monitoring datum analysis, laboratory routine rheopectic testing, finite element numerical simulation and appraisal of GIS stability, a few of conclusions can be summarized as the following:(1) Analyzing present and past geological reconnaissance datum and reports of stability appraisal in Luohu Jiancheng district and synthesizing a mass of crustal stress monitoring datum and Huangbeiling faultage F8 monitoring datum, and combining closely with practical engineering activity in Luohu district, characteristics of crustal stress distribution is deeply discussed, which has an important guiding meaning for studying region stability and underground structure safety in Luohu district.(2) Based on indoor test, two typical soft rock of brecciated mudstone and siltstone in Luohu Jiancheng district is carried systemically though interior rheological testing; Moreover combining with preceding studying results of rock rheological constitutive model, rheological numerical constitutive model suited to rock mass mechanics characteristics and stratum structure of Luohu fracture zone, and numerical parameters of the model are processed with studying of curve fitting.(3) By choosing core faultage of axial site in Luohu fracture zone i.e. geological cross section in Huangbeiling faultage F8 as geological model and utilizing finite element numerical method, change tendency of Huangbeiling faultage F8 under self-weight stress and building loads is stimulated. And long-term development trend of fracture zone is also predicted, which has an important guiding meaning for works of geological disaster prevention in district of Luohu Jiancheng.(4) Utilizing GIS, Mapbasic 7.0 technique, and combining with usual software of Maplnfo 7.0, Ansys, AutoCAD, Surfer, appraisal systems and measures of faultage stability in Shenzhen Luohu Jiancheng district basing on GIS is established preliminarily. On the condition of mankind project activity, stress and deformation analysis on geological surface of Huangbeiling faultage F8 are conducted to some extent. And influence law of mankind project activity on fracture zone stability is concluded, which has an important guiding meaning for building designing and city planning district of Luohu future.