Excavation of subglacial bedrock channels by seasonal meltwater flow

Beaud Flavien; Venditti Jeremy G.; Flowers Gwenn E.; Koppes Michele

摘要

Abstract > Subglacial water flow drives the excavation of a variety of bedrock channels including tunnel valleys and inner gorges. Subglacial floods of various magnitudes – events occurring once per year or less frequently with discharges larger than a few hundred cubic metres per second – are often invoked to explain the erosive power of subglacial water flow. In this study we examine whether subglacial floods are necessary to carve bedrock channels, or if more frequent melt season events (e.g. daily production of meltwater) can explain the formation of substantial bedrock channels over a glacial cycle. We use a one‐dimensional numerical model of bedrock erosion by subglacial meltwater, where water flows through interacting distributed and channelized drainage systems. The shear stresses produced drive bedrock erosion by bed‐ and suspended‐load abrasion. We show that seasonal meltwater discharge can incise an incipient bedrock channel a few tens of centimetres deep and several metres wide, assuming abrasion is the only mechanism of erosion, a particle size of <fi>D</fi> =256 mm and a prescribed sediment supply per unit width. Using the same sediment characteristics, flood flows yield wider but significantly shallower bedrock channels than seasonal meltwater flows. Furthermore, the smaller the shear stresses produced by a flood, the deeper the bedrock channel. Shear stresses produced by seasonal meltwater are sufficient to readily transport boulders as bedload. Larger flows produce greater shear stresses and the sediment is carried in suspension, which produces fewer contacts with the bed and less erosion. We demonstrate that seasonal meltwater discharge can excavate bedrock volumes commensurate with channels several tens of metres to a few hundred metres wide and several tens of metre </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”xml：id =“esp4367-abs-abs-0001”> <标题类型=“main” >摘要</ title> >底透射水流驱动各种基岩通道的挖掘，包括隧道谷和内部峡谷。各种大小的底污水 - 每年发生一次或者每秒大于每秒大于几百立方米的排放发生的事件 - 经常调用以解释底透射水流的腐蚀力。在这项研究中，我们研究了雕刻基岩频道是否需要底裂洪水，或者如果更频繁的熔体季事件（例如，每日生产的熔融水）可以解释在冰川周期上的基本上基岩通道的形成。我们使用沉淀熔融水的基岩侵蚀的一维数值模型，其中水流通过交互分布和通道的排水系统。剪切应力通过床和悬浮载荷磨损产生了驱动基岩侵蚀。我们表明，季节性熔融水排放可以切割出初始的基岩通道几十厘米深，几米宽，假设磨损是侵蚀的唯一机制，粒度为<fi> d </ fi> = 256毫米和一个规定的每单位宽度的沉积物供应。使用相同的沉积物特性，洪水流量越来越宽，但显着较浅的基岩通道比季节熔融流动。此外，洪水产生的剪切应力越小，基岩通道越深。由季节熔融水产生的剪切应力足以容易地将巨石运输为床单。较大的流量产生更大的剪切应力，并且沉积物悬浮在悬浮液中，其与床和较少的侵蚀产生较少的接触。我们证明季节性熔融水排放可以挖掘基岩体积与通道相称，几十米到几百米宽，几十米 </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22319/'>《Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group》</a> <b style="margin: 0 2px;">|</b><span>2018年第9期</span><b style="margin: 0 2px;">|</b><span>共13页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Beaud Flavien&option=202" target="_blank" rel="nofollow">Beaud Flavien;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Venditti Jeremy G.&option=202" target="_blank" rel="nofollow">Venditti Jeremy G.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Flowers Gwenn E.&option=202" target="_blank" rel="nofollow">Flowers Gwenn E.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Koppes Michele&option=202" target="_blank" rel="nofollow">Koppes Michele;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Earth SciencesSimon Fraser UniversityBurnaby V5A1S6 British Columbia Canada;</p> <p>Department of GeographySimon Fraser UniversityBurnaby V5A1S6 British Columbia Canada;</p> <p>Department of Earth SciencesSimon Fraser UniversityBurnaby V5A1S6 British Columbia Canada;</p> <p>Department of GeographyUniversity of British ColumbiaVancouver V6T1Z2 British Columbia Canada;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=glacial erosion&option=203" rel="nofollow">glacial erosion;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=subglacial hydrology&option=203" rel="nofollow">subglacial hydrology;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=subglacial meltwater erosion&option=203" rel="nofollow">subglacial meltwater erosion;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tunnel valley&option=203" rel="nofollow">tunnel valley;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=inner gorge&option=203" rel="nofollow">inner gorge;</a> </p> <div class="translation"> 机译：冰川侵蚀;底透明水文;底裂解熔融侵蚀;隧道山谷;内峡谷; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023139346.html">Excavation of subglacial bedrock channels by seasonal meltwater flow</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Beaud Flavien&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Beaud Flavien,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Venditti Jeremy G.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Venditti Jeremy G.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Flowers Gwenn E.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Flowers Gwenn E.,</a> <a href="/journal-foreign-22319/" target="_blank" rel="nofollow" class="tuijian_authcolor">Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group .</a> <span>2018</span><span>,第9期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：季节性熔融流动挖掘子夹层基岩通道</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_detail_thesis/0204117146527.html">Subglacial drainage patterns of Devon Island, Canada: detailed comparison of rivers and subglacial meltwater channels</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Grau Galofre Anna&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Grau Galofre Anna,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jellinek A. Mark&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Jellinek A. Mark,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Osinski Gordon R.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Osinski Gordon R.,</a> <a href="/journal-foreign-30571/" target="_blank" rel="nofollow" class="tuijian_authcolor">The Cryosphere Discussions .</a> <span>2018</span><span>,第4期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：加拿大德文岛的冰川下排水模式：河流和冰川下融水通道的详细比较</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022122130.html">Seasonal progression of uranium series isotopes in subglacial meltwater: Implications for subglacial storage time</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Carli A. Arendt&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Carli A. Arendt,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sarah M. Aciego&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sarah M. Aciego,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kenneth W.W. Sims&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Kenneth W.W. Sims,</a> <a href="/journal-foreign-16304/" target="_blank" rel="nofollow" class="tuijian_authcolor">Chemical geology .</a> <span>2017</span><span>,第期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：铀熔融水中铀系列同位素的季节性进展：底批储存时间的影响</span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-conference-foreign_meeting-223596_thesis/020515489200.html">Seasonal variation of velocity fields in lined channels: impact on flow measurement</a> <b>[C]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=L. Cassan&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">L. Cassan,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=G. Belaud&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">G. Belaud,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=J.-P. Baume&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">J.-P. Baume,</a> <a href="/conference-foreign-223596/" target="_blank" rel="nofollow" class="tuijian_authcolor">World environmental and water resources congress .</a> <span>2012</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：衬砌通道中速度场的季节性变化：对流量测量的影响</span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-degree-foreign_mphd_thesis/02061777288.html">Laboratory Experiments on Alluvial Cover in Mixed Bedrock-Alluvial Meandering Channels and on the Formation and Evolution of Supraglacial Meltwater Meandering Streams</a> <b>[D] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Fernandez Arrieta, Roberto.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Fernandez Arrieta, Roberto. </a> <span>2018</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：基岩冲积混合曲流河道冲积层及超冰川融水曲折流形成与演化的室内实验</span> </p> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-journal-foreign-pmc_detail_thesis/040006312342.html">Subglacial meltwater supported aerobic marine habitats during Snowball Earth</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Maxwell A. Lechte&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Maxwell A. Lechte,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Malcolm W. Wallace&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Malcolm W. Wallace,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ashleigh van Smeerdijk Hood&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ashleigh van Smeerdijk Hood,</a> <span>2019</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：雪球地球期间冰河融水支持有氧海洋生境</span> </p> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/open-access_resources_thesis/01000126590177.html">Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=James D. Kirkham&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">James D. Kirkham,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kelly A. Hogan&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Kelly A. Hogan,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Robert D. Larter&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Robert D. Larter,</a> <span>2020</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：南极内部架子上基岩熔融渠道的形态学：对渠道发展和底裂水学的影响</span> </p> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/academic-journal-cn_nuclear-science-engineering_thesis/0201229317661.html">带定位格架的类三角形子通道内超临界水流动传热数值研究</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=徐维晖&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 徐维晖</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=侯彦亮&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,侯彦亮</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王为术&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,王为术</a> <span> <a href="/journal-cn-8442/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 核科学与工程 </a> </span> <span> . 2018</span><span>,第001期</span> </span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-cn_atomic-energy-science-technology_thesis/0201229532965.html">超临界水冷堆类三角形子通道流动传热特性研究</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王为术&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 王为术</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张斌&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张斌</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=雷佳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,雷佳</a> <span> <a href="/journal-cn-8453/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 原子能科学技术 </a> </span> <span> . 2016</span><span>,第007期</span> </span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-cn_atomic-energy-science-technology_thesis/0201229558796.html">稠密栅元不同子通道内湍流流动的RANS和URANS模以</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=于意奇&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 于意奇</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=顾汉洋&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,顾汉洋</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=杨燕华&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,杨燕华</a> <span> <a href="/journal-cn-8453/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 原子能科学技术 </a> </span> <span> . 2011</span><span>,第010期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_detail_thesis/0201292743496.html">近失速状态下压气机静子通道内的三维流动</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=于贤君&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 于贤君</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘宝杰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘宝杰</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张志博&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张志博</a> <span> <a href="/journal-cn-57116/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 工程热物理学报 </a> </span> <span> . 2009</span><span>,第1期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_detail_thesis/0201295250220.html">方形子通道内超临界流体流动传热CFD分析</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=顾汉洋&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 顾汉洋</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=程旭&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,程旭</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=卢冬华&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,卢冬华</a> <span> <a href="/journal-cn-56769/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 核动力工程 </a> </span> <span> . 2009</span><span>,第2期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-39945_thesis/020222389725.html">堆芯类三角形子通道内超临界水流动阻力特性试验研究</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=WANG Wei-shu&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . WANG Wei-shu</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王为术&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,王为术</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ZHANG Bin&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,ZHANG Bin</a> <span> <a href="/conference-cn-39945/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第十四届全国反应堆热工流体学术会议 </a> <span> <span> . 2015</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020313843639.html">厚层基岩滑坡软弱夹层演化过程及控滑机理研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=朱赛楠&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 朱赛楠</a> <span> . 2016</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061204359666.html">坝基岩体内近水平分布的深埋软弱夹层处理方法</a> <b>[P]</b> . <span> 中国专利： CN110344430B </span> <span> . 2021.04.23</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120101244284.html">坝基岩体内近水平分布的深埋软弱夹层处理方法</a> <b>[P]</b> . <span> 中国专利： CN110344430A </span> <span> . 2019-10-18</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130420163991.html">Closure means for a channel channel meltwater of a refrigeration apparatus, channel meltwater from a cooling apparatus and cooling apparatus</a> <b>[P]</b> . <span> 外国专利：  ES2394993T3 </span> <span> . 2013-02-07</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于制冷设备的通道通道融水的封闭装置，来自冷却设备的通道融水和冷却设备 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130419787195.html">CHANNEL CLOSURE FOR A MELTWATER CHANNEL OF A REFRIGERATOR, MELTWATER CHANNEL OF A REFRIGERATOR, AND REFRIGERATOR</a> <b>[P]</b> . <span> 外国专利：  EP2470845B1 </span> <span> . 2013-05-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：制冷机的融水通道的通道关闭，制冷机的融水通道和制冷器 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130422187880.html">CHANNEL CLOSURE FOR A MELTWATER CHANNEL OF A REFRIGERATOR, MELTWATER CHANNEL OF A REFRIGERATOR, AND REFRIGERATOR</a> <b>[P]</b> . <span> 外国专利：  EP2470845A2 </span> <span> . 2012-07-04</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：制冷机的融水通道的通道关闭，制冷机的融水通道和制冷器 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704023139346','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="关闭" onclick="$('.journalsub-pop-up').hide()"> <p class="pardon">抱歉，该期刊暂不可订阅，敬请期待！</p> <p class="current">目前支持订阅全部北京大学中文核心（2020）期刊目录。</p> <div style="display: flex;margin-top: 69px;justify-content: space-between;"> <div class="no-sub" onclick="$('.journalsub-pop-up').hide()">暂不订阅</div> <div class="other-sub" onclick="continueSub('from=pc-detail')">继续订阅其他期刊</div> </div> </div> </div> <div class="right_btn"> <ul> <li class="gouwuche">  </li> <li class="yijian"> <a href="javascript:void(0);" onclick="link_analysis('/mycenter/auth/complaint.html',this)" title="意见反馈">意见反馈</a> </li> <li class="top"> <a href="javascript:scrollTo(0,0);" title="回到顶部">回到顶部</a> </li> <li class="shouye"> <a href="/" title="首页">回到首页</a> </li> </ul> </div> <div class="xllindexfooter"> <div class="xllindexfootercenter"> <div class="xllindexfooterleft left" > <div class="xllindexfooterleftli"> <ul> <li><a href="/about.html" title="关于掌桥">关于掌桥</a></li> <li><a href="/help/helpmap.html" title="资源导航">资源导航</a></li> <li><a href="/help/helpguide.html" title="新手指南">新手指南</a></li> <li><a href="/help/helpcenter.html" title="常见问题">常见问题</a></li> <li><a href="/sitemap.html" title="网站地图">网站地图</a></li> <li><a href="/help/helpcenter.html?type=9" title="版权声明">版权声明</a></li> </ul> </div> <div class="xllindexfooterleft"> <p class="xllindexfooterlefteamil">客服邮箱：kefu@zhangqiaokeyan.com</p> <div class="xllindexfooterlefttcp"> <div class="xllindexfooterpoliceiimg"></div> <div class="xllindexfooterpoliceispan"> <span>京公网安备：11010802029741号 </span> <span>ICP备案号：<a href="https://beian.miit.gov.cn" rel="nofollow" target="_blank" title="ICP备案号">京ICP备15016152号-6</a></span> <span>六维联合信息科技 (北京) 有限公司©版权所有</span> </div> </div> </div> </div> <div class="xllindexfooterright left"> <ul> <li> <p style="font-weight: bold;">客服微信</p> <div></div> </li> <li> <p style="font-weight: bold;">服务号</p> <div></div> </li> </ul> </div> </div> </div> <span id="0704023139346down" data-source="7," data-out-id="apnI9/Krw+rkCIzJNdFq4kPEop/FpIIsV1sO06tkO1ZB5MoCWOUcI70iyXMQnBLK," data-f-source-id="7" data-title="Excavation of subglacial bedrock channels by seasonal meltwater flow" data-price="20" data-site-name="" data-transnum="24" style="display:none;"></span> <input type="hidden" value="4" id="sourcetype"> <input type="hidden" value="22319" id="journalid"> <input type="hidden" value="1" id="inyn_provide_service_level"> <input type="hidden" value="https://cdn.zhangqiaokeyan.com" id="imgcdn"> <input type="hidden" value="1" id="isdeatail"> <input type="hidden" value="" id="syyn_indexed_database"> <input type="hidden" value="" id="servicetype"> <input type="hidden" id="pagename" value="Excavation of subglacial bedrock channels by seasonal meltwater flow"/> <input type="hidden" value="thesis_get_original" id="pageIdentification"> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/jquery-1.12.4.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/lwlh_ajax.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/zq.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/common.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/jquery.cookie.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/top.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/tip.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/login.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/down.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/search.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/newmail.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/searchtype.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/user/regist.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/zxs_solor/detail.js?v=5.7.8"></script> <script type="text/javascript" src="https://www.zhangqiaokeyan.com/statistics/static/pagecollection.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/tj.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/sse.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/pushbaidu.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/history.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/util/cookie.js?v=5.7.8"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/weipu/weipu.js?v=5.7.8"></script> </body> <script> $(function(){ var weiPuStatus = getCookie('WeiPuStatus'); if(weiPuStatus){ tipWeiPuStatus(weiPuStatus); delCookie('WeiPuStatus'); } getFacetKeywordVoInId(); var sourcetype = $("#sourcetype").val(); var inyn_provide_service_level = $("#inyn_provide_service_level").val(); if((sourcetype ==1||sourcetype==4)&&inyn_provide_service_level!=4){ getJournal(); } }) </script> </html>