适合于TBM施工的HSP声波反射法地质超前预报

根据一般隧道地质超前预报方法无法在TBM工作面实施测试的情况、结合各种地质预报方法与TBM配合施工的优、缺点或应用效果基础上,开展适合于TBM施工的HSP快速地质超前预报技术研究。该技术利用TBM掘进机刀盘切割岩石所激发信号作为HSP声波反射法地质预报的激发信号,开展多次地质预报现场试验。实践证明,该技术在大伙房输水隧洞工程TBM施工地质预报的实践是基本成功的,实现了不停机条件下的TBM施工地质超前预报,对TBM施工起到了积极的指导作用。

HORIZONTAL SOUND PROBING(HSP) GEOLOGY PREDICTION METHOD APPROPRIATED TO TBM CONSTRUCTION

According to the situation that general tunnel geology prediction methods were used to TBM wery difficult, combined with the advantages and disadvantages of other methods to TBM construction, and with their application, the study on effective HSP geology prediction technology was developed to fit for TBM construction. the signal of TBM boring machine cutters cutting rocks was used as the Excitation signal of HSP Acoustic Reflection Geological Prediction. Also several geology prediction field tests were done. Practice proved that it was successful in Dahuofang hydraulic tunnel project by using the technology geology prediction for TBM construction. The geology prediction of TBM construction was carried out under the conditions without the TBM stop-waiting, which was positive to guiding TBM construction.