A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite improvement method of coal-series soil, roadbed filling structure and roadbed filling construction method
The invention discloses a composite improvement method of coal-series soil, a roadbed filling structure and a roadbed filling construction method. The composite improvement method comprises the following steps: step 1, cutting the coal-series soil into blocks, drying, crushing, and screening to obtain dried coal-series soil; 2, adding the polypropylene fiber processed into a certain length into the dried coal-series soil, and uniformly mixing to obtain a polypropylene fiber and coal-series soil mixture; step 3, adding water and an STW type high-molecular soil stabilizer into the polypropylene fiber coal-series soil mixture, and uniformly mixing, or adding water into the STW type high-molecular soil stabilizer for dilution, spraying the diluted STW type high-molecular soil stabilizer into the polypropylene fiber coal-series soil mixture for several times, and uniformly mixing, so as to obtain a composite improved coal-series soil precursor; and 4, putting the composite improved coal-series soil precursor into a mold, maintaining at normal temperature, controlling the water content, and compacting to form a sample, so as to obtain the composite improved coal-series soil. The problems of unstable soil texture and strength attenuation of the coal-series soil are solved, and the mechanical property of the coal-series soil is effectively improved.
本发明公开了一种煤系土的复合改良方法、路基填筑结构及路基填筑施工方法，该复合改良方法包括：步骤一,将煤系土分割成块状,烘干后粉碎,筛分后得到烘干煤系土；步骤二,将加工成一定长度的聚丙烯纤维加入到烘干煤系土中,混合均匀,得到聚丙烯纤维煤系土混合物；步骤三,在聚丙烯纤维煤系土混合物中加入水和STW型高分子土壤稳定剂，混合均匀,或将STW型高分子土壤稳定剂加水稀释后分次喷洒在聚丙烯纤维煤系土混合物中混合均匀,得到复合改良煤系土前体；步骤四,将复合改良煤系土前体放入模具,常温养护,控制含水率,压实成样,得到复合改良煤系土。本发明解决煤系土不稳定的土质问题及其强度衰减问题，有效改善煤系土的力学性能。
Composite improvement method of coal-series soil, roadbed filling structure and roadbed filling construction method
The invention discloses a composite improvement method of coal-series soil, a roadbed filling structure and a roadbed filling construction method. The composite improvement method comprises the following steps: step 1, cutting the coal-series soil into blocks, drying, crushing, and screening to obtain dried coal-series soil; 2, adding the polypropylene fiber processed into a certain length into the dried coal-series soil, and uniformly mixing to obtain a polypropylene fiber and coal-series soil mixture; step 3, adding water and an STW type high-molecular soil stabilizer into the polypropylene fiber coal-series soil mixture, and uniformly mixing, or adding water into the STW type high-molecular soil stabilizer for dilution, spraying the diluted STW type high-molecular soil stabilizer into the polypropylene fiber coal-series soil mixture for several times, and uniformly mixing, so as to obtain a composite improved coal-series soil precursor; and 4, putting the composite improved coal-series soil precursor into a mold, maintaining at normal temperature, controlling the water content, and compacting to form a sample, so as to obtain the composite improved coal-series soil. The problems of unstable soil texture and strength attenuation of the coal-series soil are solved, and the mechanical property of the coal-series soil is effectively improved.
本发明公开了一种煤系土的复合改良方法、路基填筑结构及路基填筑施工方法，该复合改良方法包括：步骤一,将煤系土分割成块状,烘干后粉碎,筛分后得到烘干煤系土；步骤二,将加工成一定长度的聚丙烯纤维加入到烘干煤系土中,混合均匀,得到聚丙烯纤维煤系土混合物；步骤三,在聚丙烯纤维煤系土混合物中加入水和STW型高分子土壤稳定剂，混合均匀,或将STW型高分子土壤稳定剂加水稀释后分次喷洒在聚丙烯纤维煤系土混合物中混合均匀,得到复合改良煤系土前体；步骤四,将复合改良煤系土前体放入模具,常温养护,控制含水率,压实成样,得到复合改良煤系土。本发明解决煤系土不稳定的土质问题及其强度衰减问题，有效改善煤系土的力学性能。
Composite improvement method of coal-series soil, roadbed filling structure and roadbed filling construction method
一种煤系土的复合改良方法、路基填筑结构及路基填筑施工方法
ZHANG HONG (author) / ZHU RUI (author) / LIAO LIANGJIAN (author) / CHEN KUN (author) / HUANG HONGYUAN (author) / RONG YAO (author) / ZHENG MINGXIN (author) / SUN YANG (author) / TIAN HAI (author)
2023-03-03
Patent
Electronic Resource
Chinese