{'fraction_non_alphanumeric': 0.015028901734104046, 'fraction_numerical': 0.0, 'mean_word_length': 5.098591549295775, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Study on durability experiment of sub-sea tunnel grouting materials

Leakage and corrosion of seawater from fracture zone have a significant impact on sub-sea tunnel due to the complexity of geology condition. Grouting is an important measure to consolidate fracture zone and prevent the leakage of sea-water. In order to get a good effect on controlling the high pressure water leakage in sub-sea tunnel, the application of durable grouting materials is an important factor. The paper introduces the conception of grouting durability and analyses all kinds of eroding factors to sub-sea tunnel grouting materials. Indoor experiments aiming at all durability targets are carried on. The results of experiments show the applicability of grouting materials in the sub-sea tunnel grouting project and provide guidance to some similar research on engineering materials.