Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Treatment method for collapsible loess roadbed
The invention provides a treatment method for a collapsible loess roadbed, which comprises the following steps: carrying out geological survey on a loess subgrade to be filled, determining the side range of the subgrade according to a detection result, arranging pile fixing hole sites on the two sides of the most side of the subgrade, and manufacturing cement fly ash piles, after the cement fly ash piles are manufactured, filling gravel soil or cement soil between the piles in a layered mode, and after each layer is filled, a smooth wheel road roller is used for multiple times of rolling untilthe last layer is filled; and after the last layer of gravelly soil or cemented soil is rolled and tamped, the pavement is leveled, and redundant gravelly soil or cemented soil is removed. The cementfly ash gravel piles are arranged on the two sides of the sunken pavement, the land load is reduced, the loess compactness is increased, the void ratio is reduced, the space between the piles is filled with the cement soil and the gravel soil, the collapsibility of the loess roadbed is eliminated, the anti-seismic capacity of the loess roadbed is improved, and the settling period is shortened.
本发明提供一种用于湿陷性黄土路基的处理方法，所述黄土路基的处理方法包括以下步骤：对待填筑的黄土路基进行地质勘测，根据检测结果确定路基边侧范围，在路基最边侧两侧设置定桩孔位，制成水泥粉煤灰桩，水泥粉煤灰桩制成后向桩间分层填碎石土或水泥土，每层填筑后均利用光轮压路机进行多次碾压，直至填筑完最后一层；将最后一层碎石土或水泥土碾压夯实后，对路面进行平整处理，并清除多余的碎石土或水泥土。发明通过在凹陷路面两侧设置水泥粉煤灰碎石桩，减少土地负荷，增加黄土密实度，使孔隙比减少，并且在桩间填设有水泥土和碎石土，消除黄土路基湿陷性，提高了黄土路基的抗震能力，缩短沉降期。
Treatment method for collapsible loess roadbed
The invention provides a treatment method for a collapsible loess roadbed, which comprises the following steps: carrying out geological survey on a loess subgrade to be filled, determining the side range of the subgrade according to a detection result, arranging pile fixing hole sites on the two sides of the most side of the subgrade, and manufacturing cement fly ash piles, after the cement fly ash piles are manufactured, filling gravel soil or cement soil between the piles in a layered mode, and after each layer is filled, a smooth wheel road roller is used for multiple times of rolling untilthe last layer is filled; and after the last layer of gravelly soil or cemented soil is rolled and tamped, the pavement is leveled, and redundant gravelly soil or cemented soil is removed. The cementfly ash gravel piles are arranged on the two sides of the sunken pavement, the land load is reduced, the loess compactness is increased, the void ratio is reduced, the space between the piles is filled with the cement soil and the gravel soil, the collapsibility of the loess roadbed is eliminated, the anti-seismic capacity of the loess roadbed is improved, and the settling period is shortened.
本发明提供一种用于湿陷性黄土路基的处理方法，所述黄土路基的处理方法包括以下步骤：对待填筑的黄土路基进行地质勘测，根据检测结果确定路基边侧范围，在路基最边侧两侧设置定桩孔位，制成水泥粉煤灰桩，水泥粉煤灰桩制成后向桩间分层填碎石土或水泥土，每层填筑后均利用光轮压路机进行多次碾压，直至填筑完最后一层；将最后一层碎石土或水泥土碾压夯实后，对路面进行平整处理，并清除多余的碎石土或水泥土。发明通过在凹陷路面两侧设置水泥粉煤灰碎石桩，减少土地负荷，增加黄土密实度，使孔隙比减少，并且在桩间填设有水泥土和碎石土，消除黄土路基湿陷性，提高了黄土路基的抗震能力，缩短沉降期。
Treatment method for collapsible loess roadbed
一种用于湿陷性黄土路基的处理方法
HE TAO (Autor:in) / WANG JUNWEI (Autor:in) / HAN DENGLUN (Autor:in) / XIE HUAN (Autor:in) / ZHOU CHUANG (Autor:in) / YUAN DEQUAN (Autor:in) / CHENG SONG (Autor:in) / WANG PEI (Autor:in) / ZHAO XIWANG (Autor:in) / WANG FEIPENG (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
Collapsible loess roadbed treatment device and using method thereof
| Europäisches Patentamt | 2021