Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drainage ditch structure for preventing frost heaving cracking and construction method thereof
The invention relates to a drainage ditch structure for preventing frost heaving cracking and a construction method thereof. The drainage ditch structure comprises a foundation pit and a cast-in-place concrete drainage ditch, wherein the cast-in-place concrete drainage ditch is arranged in the foundation pit; geofilms are laid on the side slopes on the two sides of the foundation pit, and loofah sponge and backfill soil are arranged between the two sides of the cast-in-place concrete drainage ditch and the side slopes on the two sides; plain soil is arranged between the cast-in-place concrete drainage ditch and the bottom surface of the foundation pit; the concrete grade of the plain soil is C20 or C15, and the concrete grade of the cast-in-place concrete drainage ditch is C30; three rows of loofah sponges are placed on each of the two sides of the cast-in-place concrete drainage ditch, and the loofah sponges in the same row are arranged up and down. The drainage ditch structure is advantaged in that the loofah sponge has large structural gaps and also has characteristics of compression volume shrinkage and pressure relief volume recovery, the loofah sponge is laid between the ditch and the soil body around the ditch, frost heaving stress generated by frost heaving of the soil body around the drainage ditch can be effectively resisted, and therefore a problem of frost heaving cracking of the drainage ditch in the alpine region is prevented.
本发明涉及一种预防冻胀开裂的排水沟结构及其施工方法，包括基坑和现浇筑混凝土排水沟，现浇筑混凝土排水沟置于基坑中；基坑两侧的边坡上铺设有土工膜，所述现浇筑混凝土排水沟的两侧与两侧边坡之间均设有丝瓜络和回填土；现浇筑混凝土排水沟与基坑底面之间有素土。素土的混凝土等级为C20或C15，现浇筑混凝土排水沟的混凝土等级为C30；现浇筑混凝土排水沟的两侧均放置有三排丝瓜络，同一排的丝瓜络上下排列。本申请利用的丝瓜络具有很大的结构空隙，也具有受压体积收缩、释压体积恢复的特点，在水沟与水沟周围土体之间铺设丝瓜络，可以有效抵抗排水沟周围土体冻胀产生的冻胀应力，从而预防高寒地区排水沟冻胀开裂问题。
Drainage ditch structure for preventing frost heaving cracking and construction method thereof
The invention relates to a drainage ditch structure for preventing frost heaving cracking and a construction method thereof. The drainage ditch structure comprises a foundation pit and a cast-in-place concrete drainage ditch, wherein the cast-in-place concrete drainage ditch is arranged in the foundation pit; geofilms are laid on the side slopes on the two sides of the foundation pit, and loofah sponge and backfill soil are arranged between the two sides of the cast-in-place concrete drainage ditch and the side slopes on the two sides; plain soil is arranged between the cast-in-place concrete drainage ditch and the bottom surface of the foundation pit; the concrete grade of the plain soil is C20 or C15, and the concrete grade of the cast-in-place concrete drainage ditch is C30; three rows of loofah sponges are placed on each of the two sides of the cast-in-place concrete drainage ditch, and the loofah sponges in the same row are arranged up and down. The drainage ditch structure is advantaged in that the loofah sponge has large structural gaps and also has characteristics of compression volume shrinkage and pressure relief volume recovery, the loofah sponge is laid between the ditch and the soil body around the ditch, frost heaving stress generated by frost heaving of the soil body around the drainage ditch can be effectively resisted, and therefore a problem of frost heaving cracking of the drainage ditch in the alpine region is prevented.
本发明涉及一种预防冻胀开裂的排水沟结构及其施工方法，包括基坑和现浇筑混凝土排水沟，现浇筑混凝土排水沟置于基坑中；基坑两侧的边坡上铺设有土工膜，所述现浇筑混凝土排水沟的两侧与两侧边坡之间均设有丝瓜络和回填土；现浇筑混凝土排水沟与基坑底面之间有素土。素土的混凝土等级为C20或C15，现浇筑混凝土排水沟的混凝土等级为C30；现浇筑混凝土排水沟的两侧均放置有三排丝瓜络，同一排的丝瓜络上下排列。本申请利用的丝瓜络具有很大的结构空隙，也具有受压体积收缩、释压体积恢复的特点，在水沟与水沟周围土体之间铺设丝瓜络，可以有效抵抗排水沟周围土体冻胀产生的冻胀应力，从而预防高寒地区排水沟冻胀开裂问题。
Drainage ditch structure for preventing frost heaving cracking and construction method thereof
一种预防冻胀开裂的排水沟结构及其施工方法
WEI ZHANXI (Autor:in) / WANG HAO (Autor:in) / LI YINGJUN (Autor:in) / MA WENLI (Autor:in) / LI WANHUA (Autor:in) / WU QIHONG (Autor:in) / ZHANG XIN (Autor:in) / DONG JIANHUI (Autor:in) / ZHAO MENG (Autor:in)
22.02.2022
Patent
Elektronische Ressource
Chinesisch
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