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（1 甘肅省建筑科學(xué)研究院有限公司， 蘭州 730050；2 蘭州交通大學(xué)土木工程學(xué)院， 蘭州 730070）

［摘要］建筑地下結(jié)構(gòu)防水問(wèn)題是影響整個(gè)建筑物結(jié)構(gòu)安全及耐久性的重要因素，因此對(duì)地下混凝土結(jié)構(gòu)防水質(zhì)量問(wèn)題進(jìn)行了歸納。以實(shí)際工程為依托，對(duì)該建筑地下結(jié)構(gòu)施工過(guò)程中出現(xiàn)的滲漏事故進(jìn)行了現(xiàn)場(chǎng)調(diào)查，分析事故原因是該工程設(shè)計(jì)不滿足規(guī)范要求，外加地下室施工期間降水不到位，上覆土層回填不及時(shí)，局部抗浮不滿足底板強(qiáng)度從而導(dǎo)致開裂，造成地下水從施工縫、后澆帶、結(jié)構(gòu)裂縫處滲出。后期采用注漿法對(duì)滲透部位進(jìn)行了處理，滲漏問(wèn)題得到了明顯改善，但尚需對(duì)地下室結(jié)構(gòu)進(jìn)行進(jìn)一步加固補(bǔ)強(qiáng)。

［關(guān)鍵詞］地下結(jié)構(gòu)； 滲透； 地下水； 降水； 抗??； 加固

中圖分類號(hào)：TU91文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)02-0103-05

Analysis of leakage causes and control measures of building underground structures

WANG Gongsheng1, SUN Wen1,2, ZHANG Zhijiang1

(1 Gansu Architectural Science Research Institute Co., Ltd., Lanzhou 730050, China;2 School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

Abstract:The waterproof problem of building underground structure is an important factor that affects the safety and durability of the whole building structure. Therefore, the waterproof quality  problem of underground concrete structure was summarized. Based on the actual project, an on-site investigation of the leakage accident that occurred during the construction of the building underground structure  was conducted. The cause of the accident is that the design of the project does not meet the requirements of the specification, and the precipitation during the construction of the basement is not in place, and the overlying soil is not backfilled in time. The local anti-floating does not meet the strength of the bottom plate, which leads to cracking, causing groundwater to seep from the construction joints, post-pouring belts, and structural cracks. In the later stage, grouting was used to treat the infiltration area, and the leakage problem was significantly improved, but the basement structure still needs to be further reinforced.

Keywords:underground structure; infiltration; groundwater; precipitation; anti-floating; reinforce

*住建部科技示范項(xiàng)目（S2019059），住建部研究開發(fā)項(xiàng)目（K2019481）。

作者簡(jiǎn)介：王公勝，學(xué)士，教授級(jí)高級(jí)工程師，Email: xizhanyangguang@163.com;通信作者：孫文，博士，工程師，Email: 154310011@qq.com。