Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Treatment method of covered type karst region ground collapse based on geotextile
The invention discloses a treatment method of covered type karst region ground collapse based on geotextile. The method comprises steps as follows: the development situation of surrounding karst of the ground collapse is found out, and the scale of a ground collapse pit hole is determined, wherein the scale comprises the collapse depth H of the collapse pit hole and the largest width B of the collapse pit hole; the digging depth h, the digging width b and the slope settling rate i of the collapse treatment working area are designed according to the determined scale of the collapse pit hole; after digging, cement grout is sprayed to the bottom of a dug working area and the inner wall of the collapse pit hole in the position 1/2 deep below the bottom of the dug working area; a stainless steel reinforcement mesh and high-strength geotextile are paved above the collapse pit hole sequentially according to the largest width B of the collapse pit hole; and plain soil is backfilled layer by layer and compacted to the original ground level in the treatment area dug above geotextile. By means of the method, the problems that current karst pavement collapse treatment methods are long in construction period, high in cost and difficult in construction quality control, secondary collapse is easily caused and recurrence is higher and the like are solved.
本发明公开了一种基于土工织物的覆盖型岩溶区地面塌陷的治理方法，步骤为：查明地面塌陷周边岩溶发育情况，确定地面塌陷坑洞规模，包括塌陷坑洞的陷坑深度和塌陷坑洞的最大宽度；根据确定的塌陷坑洞规模，设计塌陷治理工作区开挖深度、开挖宽度和放坡率；开挖后，在开挖的工作区底部和开挖的工作区底部向下/2深的塌陷坑洞内壁喷射水泥浆液；根据塌陷坑洞最大宽度B，在塌陷坑洞上方先后铺设不锈钢筋网和高强度土工织物；在土工织物上方开挖的治理区内，分层回填素土并夯实至原始地面高度。该方法解决目前岩溶路面塌陷治理方法中存在的施工工期长、成本高、施工质量难以控制，二次塌陷以及复发性较高等问题。
Treatment method of covered type karst region ground collapse based on geotextile
The invention discloses a treatment method of covered type karst region ground collapse based on geotextile. The method comprises steps as follows: the development situation of surrounding karst of the ground collapse is found out, and the scale of a ground collapse pit hole is determined, wherein the scale comprises the collapse depth H of the collapse pit hole and the largest width B of the collapse pit hole; the digging depth h, the digging width b and the slope settling rate i of the collapse treatment working area are designed according to the determined scale of the collapse pit hole; after digging, cement grout is sprayed to the bottom of a dug working area and the inner wall of the collapse pit hole in the position 1/2 deep below the bottom of the dug working area; a stainless steel reinforcement mesh and high-strength geotextile are paved above the collapse pit hole sequentially according to the largest width B of the collapse pit hole; and plain soil is backfilled layer by layer and compacted to the original ground level in the treatment area dug above geotextile. By means of the method, the problems that current karst pavement collapse treatment methods are long in construction period, high in cost and difficult in construction quality control, secondary collapse is easily caused and recurrence is higher and the like are solved.
本发明公开了一种基于土工织物的覆盖型岩溶区地面塌陷的治理方法，步骤为：查明地面塌陷周边岩溶发育情况，确定地面塌陷坑洞规模，包括塌陷坑洞的陷坑深度和塌陷坑洞的最大宽度；根据确定的塌陷坑洞规模，设计塌陷治理工作区开挖深度、开挖宽度和放坡率；开挖后，在开挖的工作区底部和开挖的工作区底部向下/2深的塌陷坑洞内壁喷射水泥浆液；根据塌陷坑洞最大宽度B，在塌陷坑洞上方先后铺设不锈钢筋网和高强度土工织物；在土工织物上方开挖的治理区内，分层回填素土并夯实至原始地面高度。该方法解决目前岩溶路面塌陷治理方法中存在的施工工期长、成本高、施工质量难以控制，二次塌陷以及复发性较高等问题。
Treatment method of covered type karst region ground collapse based on geotextile
一种基于土工织物的覆盖型岩溶区地面塌陷的治理方法
WU DI (Autor:in) / LI XIAO (Autor:in) / LUO CHEN (Autor:in) / WU JIANJIAN (Autor:in) / CHENG FENG (Autor:in) / TANG XIANYUAN (Autor:in) / YANG BAI (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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