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大连地震台的摆房设在山洞里,摆房距离山洞出口约150m,距离地面33m,摆房座落在震旦系石英岩中,仪器接线采用多股通信塑料电缆,并通过钻孔引到记录室。摆房设在山洞里的优点是常年恒温,并大大地降低了地面干扰。但是,一般山洞都较潮湿,而我国地震台站所使用的拾震器大部分密封防潮性能差,所以摆房的防潮措施尤为重要。这些防潮措施在施工中就应考虑到。一般的潮湿来源主要有:地下水、基岩裂隙水、结露水、施工水等等,要针对性地采取措施。现介绍我们使用的几种方法,以使大家参考。
The pendulum of Dalian Seismological Station is located in the cave. The pedestal is about 150m away from the cave exit and 33m from the ground. The pendulum room is located in the Sinian quartzite. The instrument is wired with multi-strand communication plastic cables and leads through the hole Record room. Wobble in the cave has the advantage of perennial temperature, and greatly reduce the ground disturbance. However, the general cave is more humid, and most of the seismic sensors used in the seismic stations in our country have poor sealing and damp proofing properties, so it is very important to put moistureproof measures in the houses. These moisture-proof measures should be taken into account during construction. The general source of moisture are: groundwater, bedrock fissure water, dew water, construction water, etc., to be targeted to take measures. We are now introducing several methods we use for your reference.