我们需要加强基坑的支护措施。
再在“铆钉外”竖一排维护桩，基坑两壁形成铜墙铁壁。[{'character': '再', 'pinyin': 'zai4', 'highest pitch': 10.95, 'lowest pitch': 8.84, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 10.95, 'lowest pitch': 8.22, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '铆', 'pinyin': 'mao3', 'highest pitch': 8.22, 'lowest pitch': 5.84, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '钉', 'pinyin': 'ding1', 'highest pitch': 10.61, 'lowest pitch': 8.6, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '外', 'pinyin': 'uai4', 'highest pitch': 10.9, 'lowest pitch': 7.45, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '竖', 'pinyin': 'shu4', 'highest pitch': 9.4, 'lowest pitch': 7.97, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 7.97, 'lowest pitch': 7.3, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '排', 'pinyin': 'pai2', 'highest pitch': 7.51, 'lowest pitch': 6.45, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '维', 'pinyin': 'uei2', 'highest pitch': 9.02, 'lowest pitch': 6.6, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '护', 'pinyin': 'hu4', 'highest pitch': 9.36, 'lowest pitch': 6.88, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '桩', 'pinyin': 'zhuang1', 'highest pitch': 9.61, 'lowest pitch': 9.11, 'duration': 0.3, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.44}, {'character': '基', 'pinyin': 'ji1', 'highest pitch': 10.55, 'lowest pitch': 10.19, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '坑', 'pinyin': 'keng1', 'highest pitch': 11.31, 'lowest pitch': 10.42, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '两', 'pinyin': 'liang3', 'highest pitch': 10.57, 'lowest pitch': 5.76, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '壁', 'pinyin': 'bi4', 'highest pitch': 9.67, 'lowest pitch': 6.7, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '形', 'pinyin': 'xing2', 'highest pitch': 8.85, 'lowest pitch': 7.69, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '成', 'pinyin': 'cheng2', 'highest pitch': 8.85, 'lowest pitch': 6.66, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '铜', 'pinyin': 'tong2', 'highest pitch': 10.6, 'lowest pitch': 8.47, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '墙', 'pinyin': 'qiang2', 'highest pitch': 10.76, 'lowest pitch': 9.53, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '铁', 'pinyin': 'tie3', 'highest pitch': 12.64, 'lowest pitch': 5.87, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '壁', 'pinyin': 'bi4', 'highest pitch': 9.67, 'lowest pitch': 7.14, 'duration': 0.27, 'prosody hierarchy': '#4'}]