Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Soft soil foundation reinforcing method for accelerating drainage through blasting
The invention provides a soft soil foundation reinforcing method for accelerating drainage through blasting. The reinforcing method comprises the steps that the ground surface of an area to be reinforced is covered with 1-2 m of backfill sandy soil, and transverse drainage plates and vertical drainage plates are arranged; then a plurality of explosion holes are formed between drainage ditches and the drainage plates, each explosion hole is vertically drilled to the position below a soft soil layer from the ground through a drilling machine, and a linear explosive package is installed in each explosion hole; all the explosion holes are detonated twice; after each explosion, most sandy soil filled in each explosion hole is extruded into surrounding soil under the action of explosive force to form a vertical strip-shaped explosion cavity; the cavities are filled with sandy soil or gravelly soil to form a vertical drainage channel; and after earth surface drainage is completed, surface dynamic compaction is conducted on the area to be reinforced to reinforce shallow foundation soil, and reinforcement of the soft soil foundation is completed. According to the soft soil foundation reinforcing method, the transverse permeability of a soil body is effectively improved, and the water content of soft soil is rapidly reduced, so that the soft soil is reinforced, the reinforcing speed is high, the effect is good, and the cost is low.
本发明提供一种利用爆破加快排水的软土地基加固方法。所述加固方法是在待加固区域地表覆盖1～2m回填砂土，并布置横向排水和竖向排水板，然后在排水沟及排水板之间布置多个爆炸孔，每个爆炸孔利用钻机从地面竖向钻设至软土层以下，在每个爆炸孔内安装线形炸药包，将所有的爆炸孔分成两次起爆，每次爆炸后，在爆炸力作用下将每个爆炸孔中填充的砂土大部分挤压至周围土体内，并形成竖条状爆炸腔体，在空腔内填充砂土或碎石土形成竖向排水通道，在地表排水完成后，对待加固区域进行表面强夯加固浅层地基土，完成软土地基的加固。本发明有效提高了土体横向的渗透性，快速降低软土含水率，从而使得软土得以加固，加固速度快，效果好，成本低。
Soft soil foundation reinforcing method for accelerating drainage through blasting
The invention provides a soft soil foundation reinforcing method for accelerating drainage through blasting. The reinforcing method comprises the steps that the ground surface of an area to be reinforced is covered with 1-2 m of backfill sandy soil, and transverse drainage plates and vertical drainage plates are arranged; then a plurality of explosion holes are formed between drainage ditches and the drainage plates, each explosion hole is vertically drilled to the position below a soft soil layer from the ground through a drilling machine, and a linear explosive package is installed in each explosion hole; all the explosion holes are detonated twice; after each explosion, most sandy soil filled in each explosion hole is extruded into surrounding soil under the action of explosive force to form a vertical strip-shaped explosion cavity; the cavities are filled with sandy soil or gravelly soil to form a vertical drainage channel; and after earth surface drainage is completed, surface dynamic compaction is conducted on the area to be reinforced to reinforce shallow foundation soil, and reinforcement of the soft soil foundation is completed. According to the soft soil foundation reinforcing method, the transverse permeability of a soil body is effectively improved, and the water content of soft soil is rapidly reduced, so that the soft soil is reinforced, the reinforcing speed is high, the effect is good, and the cost is low.
本发明提供一种利用爆破加快排水的软土地基加固方法。所述加固方法是在待加固区域地表覆盖1～2m回填砂土，并布置横向排水和竖向排水板，然后在排水沟及排水板之间布置多个爆炸孔，每个爆炸孔利用钻机从地面竖向钻设至软土层以下，在每个爆炸孔内安装线形炸药包，将所有的爆炸孔分成两次起爆，每次爆炸后，在爆炸力作用下将每个爆炸孔中填充的砂土大部分挤压至周围土体内，并形成竖条状爆炸腔体，在空腔内填充砂土或碎石土形成竖向排水通道，在地表排水完成后，对待加固区域进行表面强夯加固浅层地基土，完成软土地基的加固。本发明有效提高了土体横向的渗透性，快速降低软土含水率，从而使得软土得以加固，加固速度快，效果好，成本低。
Soft soil foundation reinforcing method for accelerating drainage through blasting
利用爆破加快排水的软土地基加固方法
ZHAO JIANHAI (Autor:in)
09.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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