A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Thick-layer soil foundation tunnel open cut tunnel high fill structure and constructing method
The invention discloses a thick-layer soil foundation tunnel open cut tunnel high fill structure and a constructing method. The thick-layer soil foundation tunnel open cut tunnel high fill structure comprises a tunnel open cut tunnel arranged on a soil foundation, a bearing foundation, a lightweight concrete body arranged at the top of the tunnel open cut tunnel, a filling body and a composite geo-membrane, wherein the bearing foundation is arranged at the bottom of the tunnel open cut tunnel and extends into a rock foundation at the bottom of the soil foundation from the soil foundation at the bottom of the tunnel open cut tunnel; the filling body is arranged on the soil foundation and is filled in the two sides of the tunnel open cut tunnel and the lightweight concrete body; and the composite geo-membrane is arranged between the tunnel open cut tunnel and the filling body and between the lightweight concrete body and the filling body. According to the thick-layer soil foundation tunnel open cut tunnel high fill structure, the bearing foundation stretches into the rock foundation to solve the problem that the thick-layer soil foundation settles; the volume-weight of the lightweight concrete body is 0.2-0.3 time of that of filled soil, so that the load is greatly reduced, and deformation and load control of the tunnel open cut tunnel are effectively solved; and the composite geo-membrane does not generate harmful traction action to the lightweight concrete body and the tunnel open cut tunnel when the soil foundation has settlement and large deformation, and the effect is excellent.
本发明公开了一种厚层土质地基隧道明洞高填方结构及构筑方法，该隧道明洞高填方结构包括隧道明洞，设于土质地基上；承载基础，连接于隧道明洞底部，并由隧道明洞底部的土质地基延伸入土质地基底部的岩质地基；轻质混凝土体，设于隧道明洞顶部；填方体，设于土质地基上，填筑于隧道明洞和轻质混凝土体的两侧；复合土工膜，设于隧道明洞和填方体之间，以及轻质混凝土体和填方体之间。该隧道明洞高填方结构，承载基础伸入岩质地基，解决厚层土质地基沉降问题，轻质混凝土体容重为填土的0.2‑0.3倍，荷载大大减轻，有效解决隧道明洞的变形和荷载控制；设置复合土工膜在土质地基产生沉降大变形时不会对轻质混凝土体和隧道明洞产生不利牵引作用，效果良好。
Thick-layer soil foundation tunnel open cut tunnel high fill structure and constructing method
The invention discloses a thick-layer soil foundation tunnel open cut tunnel high fill structure and a constructing method. The thick-layer soil foundation tunnel open cut tunnel high fill structure comprises a tunnel open cut tunnel arranged on a soil foundation, a bearing foundation, a lightweight concrete body arranged at the top of the tunnel open cut tunnel, a filling body and a composite geo-membrane, wherein the bearing foundation is arranged at the bottom of the tunnel open cut tunnel and extends into a rock foundation at the bottom of the soil foundation from the soil foundation at the bottom of the tunnel open cut tunnel; the filling body is arranged on the soil foundation and is filled in the two sides of the tunnel open cut tunnel and the lightweight concrete body; and the composite geo-membrane is arranged between the tunnel open cut tunnel and the filling body and between the lightweight concrete body and the filling body. According to the thick-layer soil foundation tunnel open cut tunnel high fill structure, the bearing foundation stretches into the rock foundation to solve the problem that the thick-layer soil foundation settles; the volume-weight of the lightweight concrete body is 0.2-0.3 time of that of filled soil, so that the load is greatly reduced, and deformation and load control of the tunnel open cut tunnel are effectively solved; and the composite geo-membrane does not generate harmful traction action to the lightweight concrete body and the tunnel open cut tunnel when the soil foundation has settlement and large deformation, and the effect is excellent.
本发明公开了一种厚层土质地基隧道明洞高填方结构及构筑方法，该隧道明洞高填方结构包括隧道明洞，设于土质地基上；承载基础，连接于隧道明洞底部，并由隧道明洞底部的土质地基延伸入土质地基底部的岩质地基；轻质混凝土体，设于隧道明洞顶部；填方体，设于土质地基上，填筑于隧道明洞和轻质混凝土体的两侧；复合土工膜，设于隧道明洞和填方体之间，以及轻质混凝土体和填方体之间。该隧道明洞高填方结构，承载基础伸入岩质地基，解决厚层土质地基沉降问题，轻质混凝土体容重为填土的0.2‑0.3倍，荷载大大减轻，有效解决隧道明洞的变形和荷载控制；设置复合土工膜在土质地基产生沉降大变形时不会对轻质混凝土体和隧道明洞产生不利牵引作用，效果良好。
Thick-layer soil foundation tunnel open cut tunnel high fill structure and constructing method
一种厚层土质地基隧道明洞高填方结构及构筑方法
2020-06-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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