深埋復(fù)雜巖溶區(qū)地質(zhì)災(zāi)害分析與治理-資料下載頁
2025-06-25 11:59本頁面
【正文】 the relevant problems. The experts thought that ground caving in was closely related to solution unanimously. But according to Shenzhen geological map of 1:50000 and the detailed investigation report, there was no solution stratum in Old House area. So experts thought that there was something wrong about the judgment of the stratum. They suggested to make clear the lithology and the hydrological conditions by means of drilling and physical exploration in such area. Shenzhen Water Affairs Bureau mitted Shenzhen Investigation amp。 Research Institute to add 14 bores in the tunnel axis and 30 bores in the settlement and caving in area of Old House Village, bined with CT physical exploration and pumping from the bores. The result proved that the settlement area of Old House Village was the solution basin and the water gushing point was the exit of the groundwater. Besides, the length, the extent and the rules of solution area were clarified. It was suggested to construct through full section ductule super forward grouting to reinforce and stop the water. Consequently, it crossed the solution segment and the fractured zone. From then on, no settlement and caving in happened in Old House Village. Key words: caving in of ground, surface settlement, solution basin, solution groove accumulation參考文獻⑴ 《深圳地區(qū)建筑地基基礎(chǔ)設(shè)計試行規(guī)程》（SJG188）巖體構(gòu)造圖（1：100000），深圳1990。⑵ 深圳市勘察研究院《深圳市供水網(wǎng)絡(luò)干線一號隧洞西坑段補勘報告》。⑶ 深圳市水利規(guī)劃設(shè)計院《一號隧洞西坑谷地段預(yù)注漿工藝圖》。第一作者通訊地址：廣東省深圳市福田區(qū)福中東路15號勘察研究院 郵編5180266 /
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