Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Full-face grouting-based CRD excavation method for underpassing bridge tunnel
The invention discloses a full-face grouting-based CRD excavation method for an underpassing bridge tunnel. Before using the CRD method to excavate the underpassing bridge tunnel, a configured grouting solution is used to perform full-face grouting on the excavated section to reinforce the surrounding rock; the configured grouting liquid is made by mixing a liquid A and a liquid B in a volume ratio of 1:1, wherein the liquid A is water glass, and the liquid B is prepared by mixing cement, sodium carboxymethyl cellulose, a surfactant and water in a weight ratio of 42:4.6:3.2:50.2. The method effectively combines the full-face advanced grouting with the CRD method, so that the deformation control standard for the surrounding rock is high, and it is not easy to cause uneven settlement of therelevant ground.
一种基于全断面注浆的CRD开挖下穿桥梁隧道的施工方法，在采用CRD工法进行下穿桥梁隧道开挖之前，利用所配置的注浆液对开挖断面进行全断面注浆，以加固围岩；所配置的注浆液由A液和B液按照体积比1:1混合而成，其中，A液为水玻璃，B液是由水泥、羧甲基纤维素钠、表面活性剂和水按照重量份数比为42:4.6:3.2:50.2混合制成的。本方法有效的将全断面超前注浆与CRD法的有效结合，因此对于围岩的变形控制标准高，不容易造成相关地面的不均匀沉降。
Full-face grouting-based CRD excavation method for underpassing bridge tunnel
The invention discloses a full-face grouting-based CRD excavation method for an underpassing bridge tunnel. Before using the CRD method to excavate the underpassing bridge tunnel, a configured grouting solution is used to perform full-face grouting on the excavated section to reinforce the surrounding rock; the configured grouting liquid is made by mixing a liquid A and a liquid B in a volume ratio of 1:1, wherein the liquid A is water glass, and the liquid B is prepared by mixing cement, sodium carboxymethyl cellulose, a surfactant and water in a weight ratio of 42:4.6:3.2:50.2. The method effectively combines the full-face advanced grouting with the CRD method, so that the deformation control standard for the surrounding rock is high, and it is not easy to cause uneven settlement of therelevant ground.
一种基于全断面注浆的CRD开挖下穿桥梁隧道的施工方法，在采用CRD工法进行下穿桥梁隧道开挖之前，利用所配置的注浆液对开挖断面进行全断面注浆，以加固围岩；所配置的注浆液由A液和B液按照体积比1:1混合而成，其中，A液为水玻璃，B液是由水泥、羧甲基纤维素钠、表面活性剂和水按照重量份数比为42:4.6:3.2:50.2混合制成的。本方法有效的将全断面超前注浆与CRD法的有效结合，因此对于围岩的变形控制标准高，不容易造成相关地面的不均匀沉降。
Full-face grouting-based CRD excavation method for underpassing bridge tunnel
一种基于全断面注浆的CRD开挖下穿桥梁隧道的施工方法
XING LINBIN (Autor:in) / ZHAO LIN (Autor:in) / LIN XINBING (Autor:in) / HUI XIAOJUN (Autor:in) / YANG MINGJUN (Autor:in) / HAO JIANFEI (Autor:in) / CHEN XIUWEN (Autor:in) / MEI DAOJUN (Autor:in) / LIANG BIN (Autor:in)
22.09.2020
Patent
Elektronische Ressource
Chinesisch
Excavation monitoring of a large cross section tunnel underpassing an existing railway
| British Library Conference Proceedings | 2001
Ultra-deep hole grouting method during underground excavation of tunnel
| Europäisches Patentamt | 2015